RabbitCore RCM3315, RCM3305 User Manual

RabbitCore RCM3305/RCM3315

C-Programmable Core Module

with Serial Flash Mass Storage and Ethernet

User’s Manual

019–0151 • 080528–E

RabbitCore RCM3305/RCM3315 User’s Manual

Part Number 019-0151 • 080528–E • Printed in U .S.A .

©2005–2008 Digi International Inc. • All rights reserved.

No part of the contents of this manual may be reproduced or transmitted in any form or by any means
without the express written permission of Digi International.

Permission is granted to make one or more copies as long as the copyright page contained therein is
included. These copies of the manuals may not be let or sold for any reason without the express written
permission of Digi International.

Digi International reserves the right to make changes and

improvements to its products without providing not ice.

Trademarks

Rabbit, RabbitCore, and Dynamic C are registered trademarks of Digi International Inc.

Rabbit 3000 is a trademark of Digi International Inc.

Rabbit Semiconductor Inc.

RabbitCore RCM3305/RCM3315

TABLE OF CONTENTS

Chapter 1. Introduction 1

1.1 RCM3305/RCM3315 Features.............................................................................................................2

1.2 Comparing the RCM3309/RCM3319 and RCM3305/RCM3315........................................................4

1.3 Advantages of the RCM3305 and RCM3315.......................................................................................5

1.4 Development and Evaluation Tools......................................................................................................6

1.4.1 RCM3305 Series Development Kit..............................................................................................6

1.4.2 Software........................................................................................................................................7

1.4.3 Connectivity Interface Kits...........................................................................................................7

1.4.4 Online Documentation..................................................................................................................7

Chapter 2. Getting Started 9

2.1 Install Dynamic C.................................................................................................................................9

2.2 Hardware Connections........................................................................................................................10

2.2.1 Step 1 — Attach Module to Prototyping Board..........................................................................10

2.2.2 Step 2 — Connect Programming Cable......................................................................................11

2.2.2.1 RCM3309 and RCM3319.................................................................................................. 11

2.2.2.2 RCM3305 and RCM3315.................................................................................................. 12

2.2.3 Step 3 — Connect Power............................................................................................................13

2.2.3.1 Alternate Power-Supply Connections................................................................................ 13

2.3 Starting Dynamic C ............................................................................................................................14

2.4 Run a Sample Program.......................................................................................................................14

2.4.1 Troubleshooting..........................................................................................................................14

2.5 Where Do I Go From Here? ...............................................................................................................15

2.5.1 Technical Support.......................................................................................................................15

Chapter 3. Running Sample Programs 17

3.1 Introduction.........................................................................................................................................17

3.2 Sample Programs................................................................................................................................18

3.2.1 Use of Serial Flash......................................................................................................................19

3.2.1.1 Onboard Serial Flash.......................................................................................................... 19

3.2.1.2 SF1000 Serial Flash Card................................................................................................... 19

3.2.2 Serial Communication.................................................................................................................19

3.2.3 Real-Time Clock.........................................................................................................................21

3.2.4 RabbitNet....................................................................................................................................21

3.2.5 Other Sample Programs..............................................................................................................21

Chapter 4. Hardware Reference 23

4.1 RCM3305/RCM3315 Digital Inputs and Outputs..............................................................................24

4.1.1 Memory I/O Interface.................................................................................................................29

4.1.2 Other Inputs and Outputs............................................................................................................29

4.1.3 LEDs ...........................................................................................................................................29

4.2 Serial Communication ........................................................................................................................30

4.2.1 Serial Ports..................................................................................................................................30

4.2.2 Ethernet Port ...............................................................................................................................31

4.2.3 Programming Port.......................................................................................................................32

User’s Manual

4.3 Programming Cable............................................................................................................................ 33

4.3.1 Changing Between Program Mode and Run Mode....................................................................33

4.3.2 Standalone Operation of the RCM3305/RCM3315 ...................................................................34

4.4 Other Hardware.................................................................................................................................. 35

4.4.1 Clock Doubler ............................................................................................................................35

4.4.2 Spectrum Spreader...................................................................................................................... 35

4.5 Memory.............................................................................................................................................. 36

4.5.1 SRAM.........................................................................................................................................36

4.5.2 Flash EPROM.............................................................................................................................36

4.5.3 Serial Flash.................................................................................................................................36

4.5.4 Dynamic C BIOS Source Files...................................................................................................36

Chapter 5. Software Reference 37

5.1 More About Dynamic C ..................................................................................................................... 37

5.1.1 Developing Programs Remotely with Dynamic C.....................................................................39

5.2 Dynamic C Functions........................................................................................................................40

5.2.1 Digital I/O...................................................................................................................................40

5.2.2 SRAM Use.................................................................................................................................. 40

5.2.3 Serial Communication Drivers...................................................................................................41

5.2.4 TCP/IP Drivers...........................................................................................................................41

5.2.5 Serial Flash Drivers....................................................................................................................41

5.2.6 Prototyping Board Functions......................................................................................................42

5.2.6.1 Board Initialization............................................................................................................ 42

5.2.6.2 Digital I/O.......................................................................................................................... 43

5.2.6.3 Switches, LEDs, and Relay............................................................................................... 44

5.2.6.4 Serial Communication....................................................................................................... 45

5.2.6.5 RabbitNet Port................................................................................................................... 46

5.3 Upgrading Dynamic C .......................................................................................................................48

5.3.1 Extras..........................................................................................................................................48

Chapter 6. Using the TCP/IP Features 49

6.1 TCP/IP Connections........................................................................................................................... 49

6.2 TCP/IP Primer on IP Addresses.........................................................................................................51

6.2.1 IP Addresses Explained.............................................................................................................. 53

6.2.2 How IP Addresses are Used....................................................................................................... 54

6.2.3 Dynamically Assigned Internet Addresses.................................................................................55

6.3 Placing Your Device on the Network ................................................................................................ 56

6.4 Running TCP/IP Sample Programs.................................................................................................... 57

6.4.1 How to Set IP Addresses in the Sample Programs.....................................................................58

6.4.2 How to Set Up your Computer for Direct Connect....................................................................59

6.5 Run the PINGME.C Sample Program................................................................................................60

6.6 Running Additional Sample Programs With Direct Connect............................................................60

6.6.1 RabbitWeb Sample Programs.....................................................................................................61

6.6.2 Remote Application Update....................................................................................................... 61

6.6.3 Dynamic C FAT File System, RabbitWeb, and SSL Modules.................................................. 61

6.7 Where Do I Go From Here?............................................................................................................... 63

Appendix A. RCM3305/RCM3315 Specifications 65

A.1 Electrical and Mechanical Characteristics ........................................................................................66

A.1.1 Headers......................................................................................................................................70

A.2 Bus Loading ......................................................................................................................................71

A.3 Rabbit 3000 DC Characteristics........................................................................................................74

A.4 I/O Buffer Sourcing and Sinking Limit.............................................................................................75

A.5 Jumper Configurations......................................................................................................................76

A.6 Conformal Coating............................................................................................................................ 78

RabbitCore RCM3305/RCM3315

Appendix B. Prototyping Board 79

B.1 Introduction........................................................................................................................................80

B.1.1 Prototyping Board Features........................................................................................................81

B.2 Mechanical Dimensions and Layout..................................................................................................83

B.3 Power Supply.....................................................................................................................................85

B.4 Using the Prototyping Board..............................................................................................................86

B.4.1 Adding Other Components.........................................................................................................87

B.4.2 Digital I/O...................................................................................................................................88

B.4.2.1 Digital Inputs..................................................................................................................... 88

B.4.3 CMOS Digital Outputs...............................................................................................................89

B.4.4 Sinking Digital Outputs..............................................................................................................89

B.4.5 Relay Outputs.............................................................................................................................89

B.4.6 Serial Communication................................................................................................................90

B.4.6.1 RS-232............................................................................................................................... 91

B.4.6.2 RS-485............................................................................................................................... 92

B.4.7 RabbitNet Ports ..........................................................................................................................93

B.4.8 Other Prototyping Board Modules.............................................................................................94

B.4.9 Quadrature Decoder ...................................................................................................................94

B.4.10 Stepper-Motor Control.............................................................................................................94

B.5 Prototyping Board Jumper Configurations ........................................................................................96

B.6 Use of Rabbit 3000 Parallel Ports......................................................................................................98

Appendix C. LCD/Keypad Module 101

C.1 Specifications...................................................................................................................................101

C.2 Contrast Adjustments for All LCD/Keypad Modules......................................................................103

C.3 Keypad Labeling..............................................................................................................................104

C.4 Header Pinouts.................................................................................................................................105

C.4.1 I/O Address Assignments.........................................................................................................105

C.5 Mounting LCD/Keypad Module on the Prototyping Board ............................................................106

C.6 Bezel-Mount Installation..................................................................................................................107

C.6.1 Connect the LCD/Keypad Module to Your Prototyping Board...............................................109

C.7 Sample Programs .............................................................................................................................110

C.8 LCD/Keypad Module Function Calls..............................................................................................111

C.8.1 LCD/Keypad Module Initialization..........................................................................................111

C.8.2 LEDs.........................................................................................................................................111

C.8.3 LCD Display.............................................................................................................................112

C.8.4 Keypad......................................................................................................................................132

Appendix D. Power Supply 135

D.1 Power Supplies.................................................................................................................................135

D.1.1 Battery Backup.........................................................................................................................135

D.1.2 Battery-Backup Circuit............................................................................................................136

D.1.3 Reset Generator.......................................................................................................................137

Appendix E. RabbitNet 139

E.1 General RabbitNet Description........................................................................................................139

E.1.1 RabbitNet Connections.............................................................................................................139

E.1.2 RabbitNet Peripheral Cards.................................................... ..................................................140

E.2 Physical Implementation..................................................................................................................141

E.2.1 Control and Routing.................................................................................................................141

E.3 Function Calls...................................................................................................................................142

E.3.1 Status Byte................................................................................................................................148

Index 149

Schematics 153

User’s Manual

RabbitCore RCM3305/RCM3315

1. INTRODUCTION

The RCM3305 and RCM3315 RabbitCore modules feature a
compact module that incorporates the latest revision of the power-

ful Rabbit® 3000 microprocessor, flash memory, mass storage
(serial flash), static RAM, and digital I/O ports. The RCM3305
and RCM3315 feature an integrated 10/100Base-T Ethernet port,
and provide for LAN and Internet-enabled systems to be built as
easily as serial-communication systems.

In addition to the features already mentioned above, the RCM3305 and RCM3315 have
two clocks (main oscillator and real-time clock), reset circuitry , and the circuitry necessary
for management of battery backup of the Rabbit 3000’s internal real-time clock and the
static RAM. Two 34-pin headers bring out the Rabbit 3000 I/O bus lines, parallel ports,
and serial ports.

The RCM3305’ s and the RCM3315’ s mass-storage capabilities make them suited to running
the optional Dynamic C FAT file system module and the featured remote application
update where data are stored and handled using the same directory file structure com­monly used on PCs.

The RCM3305 or RCM3315 receives +3.3 V power from the customer-supplied mother­board on which it is mounted. The RCM3305 and RCM3315 can interface with all kinds
of CMOS-compatible digital devices through the motherboard.

The Development Kit has what you need to design your own microprocessor-based
system: a complete Dynamic C software development system and a Prototyping Board
that allows you to evaluate the RCM3305 or RCM3315, and to prototype circuits that
interface to the RCM3305 or RCM3315 module.

User’s Manual 1

1.1 RCM3305/RCM3315 Features

• Small size: 1.85" x 2.73" x 0.86"
(47 mm x 69 mm x 22 mm)

• Microprocessor: Rabbit 3000 running

at 44.2 MHz

• 49 parallel 5 V tolerant I/O lines: 43 configurabl e for I/O, 3 fixed in put s, 3 fi xed o utp ut s

• Three additional digital inputs, two additional digital outputs

• External reset

• Alternate I/O bus can be configured for 8 data lines and 6 address lines (shared with

parallel I/O lines), plus I/O read/write

• Ten 8-bit timers (six cascadable) and one 10-bit timer with two match registers

• 512K flash memory, 512K program execution SRAM, 512K data SRAM

• Serial-flash mass-storage memory options, which are required to run the optional

Dynamic C FAT file system module and the featured remote application update.

• Real-time clock

• Watchdog supervisor

• Provision for customer-supplied backup battery via connections on header J4

• 10-bit free-running PWM counter and four pulse-width registers

• Two-channel Input Capture (shared with parallel I/O ports) can be used to time input

signals from various port pins

• Two-channel Quadrature Decoder accepts inputs from external incremental encoder
modules

•

Five or six 3.3 V CMOS-compatible serial ports with a maximum asynchronous baud
rate of 5.525 Mbps

. Three ports are configurable as a clocked serial port (SPI), and two

ports are configurable as SDLC/HDLC serial ports (shared with parallel I/O ports).

• Supports 1.15 Mbps IrDA transceiver

The RCM3900/RCM3910 and RCM3365/RCM3375 RabbitCore modules are similar to
the RCM3305/RCM3315 and RCM3309/RCM3319, but they use fixed NAND or remov­able media for their mass-storage memories instead of the fixed serial flash options of the
RCM3305/RCM3315 and the RCM3309/RCM3319.

2 RabbitCore RCM3305/RCM3315

Table 1 below summarizes the main features of the RCM3305 and the RCM3315 modules.

Table 1. RCM3305/RCM3315 Features

Feature RCM3305 RCM3315

Microprocessor Rabbit 3000 running at 44.2 MHz
SRAM 512K program (fast SRAM) + 512K data
Flash Memory

(program)
Flash Memory

(mass data
storage)

Serial P orts

8 Mbytes

(serial flash)

5 shared high-speed, 3.3 V CMOS-compatible ports:

all 5 are configurable as asynchronous serial ports;
3 are configurable as a clocked serial port (SPI) and 1 is
configurable as an HDLC serial port;
option for second HDLC serial port at the expense of 2
clocked serial ports (SPI)

512K

4 Mbytes

(serial flash)

The RCM3305 and RCM3315 are programmed over a standard PC serial port through a
programming cable supplied with the Development Kit, and can also be programed through
a USB port with an RS-232/USB converter, or directly over an Ethernet link using the fea­tured remote application update or the Dynamic C download manager with or without a
RabbitLink.

Appendix A provides detailed specifications for the RCM3305 and the RCM3315.

User’s Manual 3

1.2 Comparing the RCM3309/RCM3319 and RCM3305/RCM3315

We can no longer obtain certain components for the RCM3305/RCM3315 RabbitCore
modules that support the originally specified -40°C to +70°C temperature range. Instead of
changing the design of the RCM3305/RCM3315 RabbitCore modules to handle available
components specified for the original temperature range, we decided to develop a new
product line — the RC M3 309/ RCM331 9 — based on th e RCM3900 RabbitCore modules
that were released for the same reason.

The RCM3309/RCM3319 modules are similar in form, dimensions, and function to the
RCM3305/RCM3315 modules. We strongly recommend that existing RCM3305/3315
customers and designers of new systems consider using the new RCM3309/RCM3319
RabbitCore modules.

This section compares the two lines of RabbitCore modules.

• Temperature Specifications — RCM3305/RCM3315 RabbitCore modules manufac-

tured after May, 2008, are specified to operate at 0°C to +70°C. The RCM3309/
RCM3319, rated for -40°C to +85°C, are offered to customers requiring a larger
temperature range after May, 2008.

• Maximum Current — The RCM3305/RCM3315 draws 250 mA vs. the 325 mA
required by the RCM3309/RCM3319.

• LEDs — The SPEED and user (USR/BSY)LED locations have been swapped between
the RCM3305/RCM3315 and the RCM3309/RCM3319, the LNK/ACT LEDs have
been combined to one LED on the RCM3309/RCM3319, and the RCM 3309/R CM331 9
has an FDX/COL LED instead of the SF LED on the RCM3305/RCM3315. The SF
LED on the RCM3305/RCM3315 blinks when data are being written to or read from
the serial f las h . T he FDX/COL LED on the RCM3309/RCM3319 indicates whether the
Ethernet connection is in full-duplex mode (steady on) or that a half-duplex connection
is experiencing collisions (blinks).

NOTE: The change in LED indicators means that there is no indication on the

RCM3309/RCM3319 when data are being written to or read from the serial flash.

• Ethernet chip. A different Ethernet controller chip is used on the RCM3309/RCM3319.
The Ethernet chip is able to detect automatically whether a crossover cable or a straight­through cable is being used in a particular setup, and will configure the signals on the
Ethernet jack interface.

• Dynamic C — As long as no low-level FAT file system calls were used in your applica­tion developed for the RCM3305/RCM3315, you may run that application on the
RCM3309/RCM3319 after you recompile it using Dynamic C v. 9.60.

4 RabbitCore RCM3305/RCM3315

1.3 Advantages of the RCM3305 and RCM3315

• Fast time to market using a fully engineered, “ready-to-run/ready-to-program” micro­processor core.

• Competitive pricing when c ompar ed with the alternative of purchasing and assembling
individual components.

• Easy C-language program development and debugging

• Program download utility (Rabbit Field Utility) and cloning board options for rapid

production loading of programs.

• Generous memory size allows large programs with tens of thousands of lines of code,
and substantial data storage.

• Integrated Ethernet port for network connectivity, with royalty-free TCP/IP software.

• Ideal for network-enabling security and access systems, home automation, HVAC

systems, and industrial controls

User’s Manual 5

1.4 Development and Evaluation Tools

1.4.1 RCM3305 Series Development Kit

The RCM3305 Series Development Kit contains the hardware you need to use your
RCM3305 or RCM3315 module.

• RCM3309 module.

• Prototyping Board.

• Universal AC adapter, 12 V DC, 1 A (includes Canada/Japan/U.S., Australia/N.Z., U.K.,

and European style plugs).

• USB programming cable with 10-pin header.

• Dynamic C CD-ROM, with complete product documentation on disk.

• Getting Started instructions.

• Accessory parts for use on the Prototyping Board.

• Screwdriver and Cat. 5 Ethernet cables.

• Rabbit 3000 Processor Easy Reference poster.

• Registration card.

Programming

DIAG

PROG

RabbitCore® RCM3305 Series

The RCM3305 series of RabbitCore modules features built-in Ethernet, and onboard mass storage (serial
flash). These Getting Started instructions included with the Development Kit will help you get your
RCM3309 up and running so that you can run the sample programs to explore its capabilities and develop
your own applications.

Development Kit Contents

The RCM3305 Series Development Kit contains the following items

•

RCM3309 module.

•

Prototyping Board.

•

Universal AC adapter, 12 V DC, 1 A (includes Canada/Japan/U.S., Australia/N.Z., U.K., and
European style plugs).

•

USB programming cable with 10-pin header.

•

Dynamic C® CD-ROM — with complete product documentation on disk.

•

A bag of accessory parts for use on the Prototyping Board.

•

Screwdriver and Cat. 5 Ethernet cables.

•

Getting Started instructions.

•

Rabbit 3000 Processor Easy Reference poster.

•

Registration card.

Visit our online Rabbit store at www.rabbit.com/store/ for
the latest information on peripherals and accessories that
are available for the RCM3305 series of RabbitCore
modules.

Rabbit, RabbitCore, Dynamic C, and Digi are registered trademarks of Digi International Inc.

Cable

Installing Dynamic C

Insert the CD from the Development Kit in
your PC’s CD-ROM drive. If the installation
does not auto-start, run the setup.exe pro-
gram in the root directory of the Dynamic C
CD. Install any optional Dynamic C modules
or packs after you install Dynamic C

Getting Started

Instructions

Screwdriver

Universal

AC Adapter

with Plugs

Ethernet

Cables

Accessory Parts for

Prototyping Board

VMA+ MDA1 MDA2 MDA3 MDA4 VMA

POWER

+DC

GND

D

D

C

J1

N

N

D

1

G

+

G

S
D

R1
J2

C1

C10

C11

C9

U4

JB

4

3

2

1

O

O

O

O

H

H

H

H

R31

R32

DS5DS6

TxE RxE GND TxF RxF 485+ GND 485

U1

OUT

C12

JP4

R16

J13

J14

J3

D1

C2

J10

00 01 02 03 04 05 06 07

RP2

RP1

C13

U5

R15

CX1

UX1

SO20W

CX2

UX2

SO20W

U9

C21

C22

C23

C24

C25

JP1

C3

U2

L293D

H-DRIVER

C4

R13

OUT

R17

+5 V

GND

+3.3 V

RX13

RX14

RX15

UX4

DX1

UX5

DX2

C18

C17

R33

R34

U10

R35

R36

R37

JP5

R38

C26

J8

GND

NC

GND

+3.3 V

VBT

VRAM

/RES

SMODE1

SM0

D2

/IORD

/IOWR

PG4

L1

PG5

PG6

R11

PG7

PE0

PE1

PE3

PE4

PE5

R12

7
E

PE6

P
6
F

PF7

P
4
F

PF5

P

R67

C8

PB7

PB6

R68

R69

PB5

PB4

R70

PB3

PB2

PB0

/RES_OUT

RCM3300
PROTOTYPING
BOARD

CORE MODULE

GND/EGND

LINK

ACT

PD6

PD7

PD2

PD3

PD4

PD5

PG2

PG3

PG0

®

.

PG1

PC6

PC7

PC4

PC5

PC2

PC3

PC0

PC1

PF1

PF0

PF3

PF2

PA1

PA0

PA3

PA2

PA5

PA4

PA7

PA6

GND

STAT

R25

J9

S1

S2

RESET

U8

C16

R24

R23

R21

R22

Q1

Q2Q3Q4

JA

D
N
G

J12

R28

R27

R26

R50

D4

D5D6D7
Q6

R49

R30

R29

CORE

S3

DS2

DS4

DS3

VMB MDB1 MDB2 MDB3 MDB4 VMB+

J5

J4

R52 R53

R51

R54

PF0_CLKD

JP3

PF0_QD

JP2

L293D

H-DRIVER

R14

BT1

RX16

RX17

RX18

SOT23-6

SOT23-6

LCD1JB

U3

C5

LCD1JA

J15

R39

0

S

D

E

E

R

+V/

L

1

T

S

L

D

D
C
/

K

E

E

B

L

L

+

C19

R40

U11

KEYPAD DISPLAY BOARD

5

6

7

8

5

5

5

5

R

R

R

R

+5 V

GND

+3.3 V

0

1

2

3

D

0

1

2

3

S

A

A

A

A

C

D

D

D

D

C

L

/

B

B

B

B

B

B

B

B

2

4

6

D

D

D

D

N

E

E

E

L

L

L

G

A3A1D0D2D4D

0

7

3

5

D

D

A2A

D1D3D5D

D

N

N

E

G

G

L

R42

C20

R41

K1

U12

D8

R45

LCD1JC

GND IN3 IN2 IN1 IN0 +5V

+5V QD2A QD2B QD1A QD1B GND

R60 R61

U7

R59

R62

3

4

5

6

6

6

6

6

R

R

R

R

R9

4

5

6

7

D

D

D

D

B

B

B

B

J16

6

C27

C28

R44

R43

C30C29

R46

DS7

Q5

R47

RELAY

R48

R8

J17

NO1 COM1 NC1 NO2 COM2 NC2

J7

J6

C7

RABBITNET

R2

R7

R3R4R5

R6

C6

U6

R10

/
H

S

J11

A

C14

C15

L

F

L

M

A

E

I

D

R

O

E
S

M

R19

R20

R18

D

E

V

0

T

A

3

R

@
Y
A

A

L

.5

E

0

R

Prototyping Board

Figure 1. RCM3305 Series Development Kit

6 RabbitCore RCM3305/RCM3315

1.4.2 Software

The RCM3305 and the RCM3315 are programmed using version 9.25 or later of Rabbit’s
Dynamic C. A compatible version is included on the Development Kit CD-ROM.
Dynamic C v . 9.60, which is required for the related RCM3309 and RCM3319 RabbitCore
modules, includes the popular µC/OS-II real-time operating system, point-to-point proto­col (PPP), F AT file system, RabbitWeb, and other select libraries that were previ ously sold
as indidual Dynamic C modules.

Rabbit also offers for purchase the Rabbit Embedded Security Pack featuring the Secure
Sockets Layer (SSL) and a specific Advanced Encryption Standard (AES) library. In addi­tion to the Web-based technical support included at no extra charge, a one-year telephone­based technical support subscription is also available for purchase.

1.4.3 Connectivity Interface Kits

Rabbit has available a Connector Adapter Board.

• Connector Adapter Board (Part No. 151-0114)—allows you to plug the RCM3305/
RCM3315 whose headers have a 2 mm pitch into header sockets with a 0.1" pitch.

1.4.4 Onlin e Documentation

The online documentation is installed along with Dynamic C, and an icon for the docu­mentation menu is placed on the workstation’s desktop. Double-click this icon to reach the
menu. If the icon is missing, use your browser to find and load default.htm in the docs
folder, found in the Dynamic C installation folder.

The latest versions of all documents are always available for free, unregistered download
from our Web sites as well.

User’s Manual 7

8 RabbitCore RCM3305/RCM3315

2. GETTING S TARTED

This chapter describes how to set up and use an RCM3305 series
module and the Prototyping Board included in the Development Kit.

NOTE: It is assumed that you have a Development Kit. If you purchased an RCM3305

series module by itself, you will have to adapt the information in this chapter and else­where to your test and development setup.

2.1 Install Dynamic C

To develop and debug programs for an RCM3305 series module (and for all other Rabbit
hardware), you must install and use Dynamic C.

If you have not yet installed Dynamic C version 9.25 (or a later version), do so now by
inserting the Dynamic C CD from the Development Kit in your PC’s CD-ROM drive. If
autorun is enabled, the CD installation will begin automatically.

If autorun is disabled or the installation otherwise does not start, use the Windows

Start | Run menu or Windows Disk Explorer to launch setup.exe from the root folder

of the CD-ROM.
The installation program will guide you through the installation process. Most steps of the

process are self-explanatory.
Dynamic C uses a COM (serial ) port to communica te with the tar get deve lopment sy stem.

The installation allows you to choose the COM port that will be used. The default selec­tion is COM1. You may select any available port for Dynamic C’s use. If you are not cer­tain which port is available, select COM1. This selection can be changed later within
Dynamic C.

NOTE: The installation utility does not check the selected COM port in any way. Speci-

fying a port in u se by a not her device (mouse, modem, etc.) may l ea d t o a me ss age such
as

"could not open serial port" when Dynamic C is started.

Once your installation is complete, you will have up to three icons on your PC desktop.
One icon is for Dynamic C, one opens the documentation menu, and the third is for the
Rabbit Field Utility, a tool used to download precompiled software to a target system.

If you have purchased the optional Dynamic C Rabbit Embedded Security Pack, install it
after installing Dynamic C. You must install the Rabbit Embedded Security Pack in the
same directory where Dynamic C was installed.

User’s Manual 9

2.2 Hardware Connections

There are three steps to connecting the Prototyping Board for use with Dynamic C and the
sample programs:

1. Attach the RCM3305 series RabbitCore module to the Prototyping Board.

2. Connect the programming cable between the RCM3305 series RabbitCore module and
the workstation PC.

3. Connect the power supply to the Prototyping Board.

2.2.1 Step 1 — Attach Module to Prototyping Board

Turn the RCM3305 series module so that the Ethernet jack is facing the direction shown in
Figure 2 below. Align the pins from the headers on the bottom side of the module into
header sockets JA and JB on the Prototyping Board.

RCM3305 series

RabbitCore module

(RCM3305/RCM3315 look

slightly different)

Do not press down

here.

RP1

JB

HO4

D5D6D7

R30

DS4

L293D
H-DRIVER

RP2

JB

HO3

R31

DS5 DS6

R13

HO2

VMA+ MDA1 MDA2 MDA3 MDA4 VMA

JP1

C3

U2

C4

OUT

R17

R15

CX1

UX1

SO20W

CX2

UX2

SO20W

J13

C21

C22

HO1

C23

C24

J14

R32

TxE RxE GND TxF RxF 485+ GND 485

2

U8
R24

R23

C37

Y2

R13 R14

U4

U3

R6
R5

GND/EGND

C2

JA

C43

C38

R4

C29

R12

J1

R15

GND

C1

C49

C50

R27

C9

R18

U4

R7

R8

C1

J1

GND

JP12

JP11

JP13

C10

C28

C25

U6

C24

C20

C21

C6

C7

C5

CORE MODULE

R2

R21

Q1

R27

+DC

GND

D1

C42
C41

C11

C12

JP4

C17

C16

C13

C12

R11

Y1

R3

R1

U1

R22

Q2Q3Q4

R28

S3

R1

J2

C2

U1

OUT

R50

Q6

R49

CORE

POWER

DS1

J3

J10

00 01 02 03 04 05 06 07

C13

U5

R16

U8

C16

R24

R23

GND

J12

D4

R29

DS2

DS3

+DC

J8

GND

NC

GND

+3.3 V

VBT

VRAM

/RES

SMODE1

DS4

RCM39XX

U9

SM0

D2

/IORD

BSY

CE

Q2

D1

DS3

/IOWR

PG4

R35

SPD

R31

L1

R32

U10

DS2

R29

C48

LNK

ACT

PG5

PG6

R11

C45

R34

COL

FDX

R28

C47

PG7

PE0

Q1

R30

R33

DS1

JP14

C46

PE1

PE3

C44

C40

PE4

PE5

Y3

1

R12

R26

C39

R22

R25

PE6

R21

PF7

R20

PF5

PF4 PF6 PE7

R67

R19

U7

C8

C36

PB7

PB6

R68

C34

C30

R69

C31

PB5

PB4

C35

L2

R70

R16

PB3

PB2

J3

C32

C33

C26

PB0

/RES_OUT

L1

C27

JP10

JP8

JP9

JP7

C22

C23

RCM3300

R17

PROTOTYPING

C19

BOARD

C18

C15

C14

C11

U5

C9

C10

C8

R9

R10

C3

C4

JP3

JP4

JP2

JP5

LINK

ACT

PD6

PD7

PD3

PD5

PG3

PG1

PC7

PC5

PC3

PC1

PF0

PF2

PA0

PA2

PA4

PA6

STAT

U2

PD2

J2

JP1

PD4

PG2

PG0

PC6

PC4

PC2

JA

PC0

PF1

PF3

PA1

PA3

PA5

PA7

GND

R25

R26

J9

S1

S2

RESET

VMB MDB1 MDB2 MDB3 MDB4 VMB+

J5

J4

PF0_CLKD

PF0_QD

JP2

U3
L293D
H-DRIVER

R14

C5

BT1

+5 V

GND

+3.3 V

RX13

RX16

RX14

RX17

RX18

RX15

UX4

DX1

SOT23-6

UX5

DX2

SOT23-6

C18

C17

R33

R34

U10

U9

R35

R36

R37

JP5

R38

C26

C25

JP3

R51

LCD1JA

R52 R53

R55

LCD1JB

R54

R56

R57

R58

R39

+V

+BKLT

R40

U11

+5V QD2A QD2B QD1A QD1B GND

R59

LCD

/CS

BA0

J15

/RES

LED0

LED2

LED4

/CS

LED1

LED3

LED5

C19

R41

KEYPAD DISPLAY BOARD

R60 R61

U7

R62

R63

R64

R65

R66

+5 V

+3.3 V

BA1

BA2

BA3

LED6

GNDA3A1D0D2D4D6

A2

GND

GND

R42

C20

U12

D8

GND IN3 IN2 IN1 IN0 +5V

J6

C7

R2

R3R4R5

R6

C6

R8

U6

R9

R10

C14

C15

GND

BD0

BD1

BD2

BD3

BD4

BD5

BD6

BD7

J16

A0

D1D3D5

D7

K1

C27

C28

R43

C30C29

R45

Q5

R48

LCD1JC

CORE LED

Figure 2. Install the RCM3305/ Series Module on the Prototyping Board

NOTE: It is important that yo u line up the pins from the h eaders on the bo ttom side of the

RCM3305 series module exactly with the corresponding pins of header sockets JA and
JB on the Prototyping Board. The header pins may become bent or damaged if the pin
alignment is offset, and the module will not work. Permanent electrical damage to the
module may also result if a misaligned module is powered up.

RABBITNET

R7

R18

R44

R46

R47

J7

J11

SERIAL FLASH/

MODEM

R19

R20

0.5 A @ 30 V

RELAY RATED

J17

NO1 COM1 NC1 NO2 COM2 NC2

DS7

RELAY

Press the module’s pins firmly into the Prototyping Board header sockets—press down in
the area above the header pins using your thumbs or fingers over the connectors as shown
in Figure 2. Do not press down on the middle of the RCM3305 series module to avoid
flexing the module, which could damage the module or the components on the module.

Should you need to remove the RCM3305 series module, grasp it with your fingers along the
sides by the connectors and gently work the module up to pull the pins away from the sockets
where they are installed. Do not remove the module by grasping it at the top and bottom

10 RabbitCore RCM3305/RCM3315

.

2.2.2 Step 2 — Connect Programming Cable

The programming cable connects the RCM3305 series module to the PC running
Dynamic C to download programs and to monitor the module during debugging.

2.2.2.1 RCM3309 and RCM3319

Connect the 10-pin connector of the programming cable labeled PROG to header J1 on
the RCM3309/RCM3319 as shown in Figure 3(a). There is a small dot on the circuit board
next to pin 1 of header J1. Be sure to orient the marked (usually red) edge of the cable
towards pin 1 of the connector. (Do not use the DIAG connector, which is used for a non­programming serial connection.)

Insert tab into slot

1

Press down on clip,

2

snap plug into place

J1

Assemble

AC Adapter

PROG

J8

GND

GND

VBT

/RES

SM0

/IOWR

PG5

PG7

PE1

PE4

PE6

PF7

PF5

PB7

PB5

PB3

PB0

RCM3300
PROTOTYPING
BOARD

ACT

PD7

PD3

PD5

PG3

PG1

PC7

PC5

PC3

PC1

PF0

PF2

PA0

PA2

PA4

PA6

STAT

J9

S1

RESET

NC

+3.3 V

VRAM

SMODE1

/IORD

PG4

PG6

PE0

PE3

PE5

PF4 PF6 PE7

PB6

PB4

PB2

/RES_OUT

LINK

PD6

PD2

PD4

PG2

PG0

PC6

PC4

PC2

PC0

PF1

PF3

PA1

PA3

PA5

PA7

GND

AC adapter

3-pin

power connector

R60 R61

U7

R62

R63

R64

R65

R66

+5 V

+3.3 V

BA1

BA2

BA3

LED6

GNDA3A1D0D2D4D6

A2

GND

GND

R42

C20

U12

D8

GND

BD0

BD1

A0

D1D3D5

GND IN3 IN2 IN1 IN0 +5V

C7

R8

R9

BD2

BD3

BD4

D7

K1

To

J7

J6

RABBITNET

R2

R7

R3R4R5

R6

C6

U6

R10

J11

C14

C15

R19

R18

BD5

BD6

BD7

J16

J17

C27

C28

R44

R43

PC USB port

C30C29

R45

R46

Q5

R47

R48

LCD1JC

SERIAL FLASH/

RELAY RATED

DS7

MODEM

R20

0.5 A @ 30 V

RELAY

NO1 COM1 NC1 NO2 COM2 NC2

RP1

Y3

R25

C30

C31

R9

U3

C3

C4

R6
R5

U2

HO4

D5D6D7

L293D
H-DRIVER

R13

RP2

C49

C50

R27

C43

2

U8
R24

R23

C38

C37

C29

R18

Y2

R13 R14

R12

R7

U4

R8

R4

C2

PROG

J1

C1

JB

R15

HO3

HO2

R30

R31

DS5 DS6

DS4

VMA+ MDA1 MDA2 MDA3 MDA4 VMA

JP1

C3

U2

C4

OUT

R17

JP12

JP11

R15

JP13

C42
C41

C28

C25

U6

C24

C20

C21

CX1

C17

C16

C13

UX1

C12

SO20W

R11

C6

C7

CX2

Y1

C5

R3

UX2

SO20W

R2

R1

J13

U1

C21

C22

HO1

C23

C24

J14

R32

TxE RxE GND TxF RxF 485+ GND 485

CE

R32

Q1

GND/EGND

JA

GND

J1

C1

C9

U4

DS4

BSY

R31

C48

R30

GND

+DC

C10

C11

Q2

U10

C47

JP14

CORE MODULE

J3

JP10

JP8

JP9

R21

Q1

Q2Q3Q4

R28

R27

S3

POWER

GND

DS1

R1
J2

J3

D1

C2

U1

J10

00 01 02 03 04 05 06 07

OUT

C12

JP4

RCM39XX

U9

D1

R16

R29

C45

R28

C46

C44

C40

1

R26

C39

R22

R21

R20

R19

U7

C36

C34

C35

L2

C32

C33

C26

C27

JP7

C22

C23

R17

C19

C18

C15

C14

C11

U8

U5

C10

C16

R24

R23

JP3

JP4

R22

JP5

J2

JP1

J12

R50

D4

Q6

R49

CORE

DS2

C13

U5

R16

C9
C8

R10

JP2

GND

R29

DS3

+DC

D2

L1

R11

R12

R67

C8

R68
R69
R70

DS3

R35

SPD

DS2

LNK

ACT

R34

COL

FDX

R33

DS1

L1

R25

R26

S2

VMB MDB1 MDB2 MDB3 MDB4 VMB+

JP2

U3
L293D
H-DRIVER

R14

C5

BT1

+5 V

GND

+3.3 V

RX13

RX14

RX15

UX4

DX1

UX5

DX2

C18

C17

R33

R34

U9

R35

R36

JP5

C26

C25

DIAG

Colored edge

J4

PF0_CLKD

RX16

RX17

RX18

U10

R38

JP3

LCD1JA

R52 R53

R51

R55

LCD1JB

R54

R56

R57

R58

R39

+V

/RES

/CS

+BKLT

R40

U11

+5V QD2A QD2 B QD1A QD1B GND

R59

LCD

/CS

BA0

J15

LED0

LED2

LED4

LED1

LED3

LED5

C19

R41

KEYPAD DISPLAY BOARD

J5

PF0_QD

SOT23-6

SOT23-6

R37

Programming Cable

Figure 3(a). Connect Programming Cable and Power Supply

Connect the other end of the programming cable to an available USB port on your PC or
workstation. Your PC should recognize the new USB hardware, and the LEDs in the
shrink-wrapped area of the USB programming cable will flash.

User’s Manual 11

2.2.2.2 RCM3305 and RCM3315

Connect the 10-pin connector of the programming cable labeled PROG to header J1 on
the RCM3305/RCM3315 as shown in Figure 3(b). There is a small dot on the circuit
board next to pin 1 of header J1. Be sure to orient the marked (usually red) edge of the
cable towards pin 1 of the connector . (Do not use the DIAG connector, which is used for a
nonprogramming serial connection.)

J8

GND

GND

VBT

/RES

SM0

/IOWR

PG5

PG7

PE1

PE4

PE6

PF7

PF5

PB7

PB5

PB3

PB0

RCM3300
PROTOTYPING
BOARD

ACT

PD7

PD3

PD5

PG3

PG1

PC7

PC5

PC3

PC1

PF0

PF2

PA0

PA2

PA4

PA6

STAT

J9

S1

RESET

NC

+3.3 V

VRAM

SMODE1

/IORD

PG4

PG6

PE0

PE3

PE5

PF4 PF6 PE7

PB6

PB4

PB2

/RES_OUT

LINK

PD6

PD2

PD4

PG2

PG0

PC6

PC4

PC2

PC0

PF1

PF3

PA1

PA3

PA5

PA7

GND

alternate

AC adapter

3-pin

power connector

U7

R62

R64

R65

R66

+5 V

GND

+3.3 V

BA1

BA2

BA3

BD0

LED6

GNDA3A1D0D2D4D6

A2

A0

GND

GND

R42

C20

U12

D8

BD1

D1D3D5

GND IN3 IN2 IN1 IN0 +5V

C7

R8

R9

BD2

BD3

BD4

D7

K1

LCD1JC

J7

J6

RABBITNET

R2

R7

R3R4R5

R6

C6

U6

R10

J11

C14

C15

SERIAL FLASH/

MODEM

R19

R20

R18

BD5

BD6

BD7

J16

0.5 A @ 30 V

RELAY RATED

J17

C27

C28

R44

R43

C30C29

R45

R46

NO1 COM1 NC1 NO2 COM2 NC2

DS7

Q5

R47

RELAY

R48

J1

PROG

RP1

C13

U5

U5

C23

C25

C19

C15

C10

R8

GND

D5D6D7

R29

DS3

L293D
H-DRIVER

RP2

C74

C33
C32
C31

R13

R9

J1

RP1

JB

HO4

HO3

R30

R31

DS5 DS6

DS4

VMA+ MDA1 MDA2 MDA3 MDA4 VMA

JP1

C3

U2

C4

R13

OUT

R17

U13

R15

R64
R63
R62
R61
R60

C81

R45

CX1

R16

UX1

SO20W

C14

U2

CX2

R12

R11

R10

UX2

SO20W

PROG

J13

R1

C21

HO2

HO1

C23

C24

J14

R32

TxE RxE GND TxF RxF 485+ GND 485

C22

GND/EGND

JP4

R14

C22

C18

JA

POWER

GND

J1

GND

+DC

GND

DS1

R1

J2

J3

D1

C1

C2

U1

J10

C10

C11

C9

00 01 02 03 04 05 06 07

OUT

C12

JP4

U4

SPEED

RCM33XX

C78

C79

C71

DS4

C12

R50

J2

JP7

C27

U3

C21

C17

C9

C42

C90

L3

R81

CORE MODULE

JP6

C35

C30
R21

C26

R20

R21

C5

C8

R7

Q1

Q2Q3Q4

C2C3R3

R27

S3

R16

C77

R79

L2

C72

C76

C86

C70

C80

R82

C82

R30

R31
R54

R53

R44

C61

C58

C43

C34

Y2

R23

R17

C28

R18

R22

C29

U4

R19

C24

C20

U8

C16

C16

C11

R24

R23

R22

U1

R6

C6

C7

R5

C4

Y1

R2

C1

J12

R28

R50

D4

Q6

R49

CORE

DS2

R38
R37

R36

R35

JP8

C13

Q1

+DC

D2

L1

R11

R12

R67

C8

R68
R69
R70

USR SF LINK ACT

DS3

DS2

DS1

L1

JP5

R15

R25

R26

S2

VMB MDB1 MDB2 MDB3 MDB4 VMB+

JP2

U3
L293D
H-DRIVER

R14

C5

BT1

+5 V

GND

+3.3 V

RX13

RX14

RX15

UX4

DX1

UX5

DX2

C18

C17

R33

R34

U9

R35

R36

JP5

C26

C25

DIAG

Colored edge

J4

PF0_CLKD

RX16

RX17

RX18

U10

R38

PF0_QD

SOT23-6

SOT23-6

R37

J5

JP3

+5V QD2A QD2 B QD1A QD1B GND

R52 R53

R51

R54

R59

R55

R56

R57

R58

LCD

/CS

BA0

J15

R39

+V

/RES

LED0

LED2

LED4

LCD1JA

/CS

LED1

LED3

LED5

+BKLT

C19

R40

R41

To

U11

PC COM port

Blue

KEYPAD DISPLAY BOARD

shrink wrap

LCD1JB

R60 R61

R63

Programming Cable

Figure 3(b). Connect Programming Cable and Power Supply

NOTE: Be sure to use the serial programming cable (part number 101-0542)—the pro-

gramming cable has blue shrink wrap around the RS-232 converter section located in the
middl e o f t he ca ble . Th e USB programmin g cable an d programming cables with cle ar or
red shrink wrap from other Rabbit kits are not designed to work with RCM3305/
RCM3315 modules.

Connect the other end of the programming cable to a COM port on your PC.

NOTE: It may be possible to use an RS-232/USB converter wit h t he ser ia l programming

described in this section. An RS-232/USB converter (part number 20-151-0178) is
available through the Web store. Note that not all RS-232/USB converters work with
Dynamic C.

12 RabbitCore RCM3305/RCM3315

2.2.3 Step 3 — Connect Power

When all other connections have been made, you can connect power to the Prototyping
Board.

If you have the universal power supply, prepare the AC adapter for the country where it
will be used by selecting the plug. The RCM3305 Series Development Kit presently
includes Canada/Japan/U.S., Australia/N.Z., U.K., and European style plugs. Snap in the
top of the plug assembly into the slot at the top of the AC adapter as shown in Figure 3(a),
then press down on the spring-loaded clip below the plug assembly to allow the plug
assembly to click into place.

Depending on the style of adapter, connect the AC adapter to 3-pin header J2 or jack J1 on
the Prototyping Board as shown in Figure 3(a) or Figure 3(b).

Plug in the AC adapter. The red CORE LED on the Prototyping Board should light up.
The RCM3305 series RabbitCore module and the Prototyping Board are now ready to be
used.

NOTE: A RESET button is provided on the Protot yping Board to allow a h ardware re set

without disconnectin g power.

2.2.3.1 Alternate Power-Supply Connections

All Development Kits sold up to May, 2008, included a header connector that may be used
to connect your power supply to 3-pin header J2 on the Prototyping Board. The connector
may be attached either way as long as it is not offset to one side—the center pin of J2 is
always connected to the positive terminal, and either edge pin is negative. The power
supply should deliver 8 V to 30 V DC at 8 W.

User’s Manual 13

2.3 St arting Dynamic C

NOTE: Dynamic C v. 9.60 or a later version is r equ ir ed i f you are usi ng an RCM3309 or

an RCM3319 RabbitCore module.

Once the RCM3305 series module is connected as described in the preceding pages, start
Dynamic C by double-clicking on the Dynamic C icon on your desktop or in your

Start

menu. Select Code an d BIOS in Fla sh , Run in RAM on the “Compiler” tab in the
Dynamic C Options > Project Options menu. Click OK.

If you are using a USB port to connect you r computer to the RCM3305 /RCM3315 module,
choose Options > Project Options and select “Use USB to Serial Converter” on the

Communications tab. Click OK.

2.4 Run a Sample Program

Use the File menu to open the sample program PONG.C, which is in the Dynamic C

SAMPLES folder. Press function key F9 to compile and run the program. The STDIO win-

dow will open on your PC and will display a small square bouncing around in a box.
This program shows that the CPU is working. The sample program described in

Section 6.5, “Run the PINGME.C Sample Program,” tests the TCP/IP portion of the board.

2.4.1 Troubleshooting

If Dynamic C cannot find the target system (error message "No Rabbit Processor
Detected."):

• Check that the RCM3305 series module is powered correctly — the red CORE LED on

the Prototyping Board shou ld be lit when the module is mounted on the Prototyping Board and
the AC adapter is plugged in

.

• Check both ends of the programming cable to ensure that they are firmly plugged into
the PC and the PROG connector, not the DIAG connector , is plugged in to the program­ming port on the RCM3305 series module with the marked (colored) edge of the pro­gramming cable towards pin 1 of the programming header.

• Ensure that the RCM3305 series module is firmly and correctly installed in its connec­tors on the Prototyping Board.

• Dynamic C uses the COM port or USB port specified during installation. Select a dif­ferent COM port within Dynamic C. From the Options menu, select Project Options,
then select Communications. Select another COM port from the list, then click OK.
Press <Ctrl-Y> to force Dynamic C to recompile the BIOS. If Dynamic C still re ports it
is unable to locate the target system, repeat the above steps until you locate the COM
port used by the programming cable.

• If you get an error message when you plugged the programming cable into a USB port,
you will have to install USB drivers. Drivers for Windows XP are available in the
Dynamic C Drivers\Rabbit USB Programming Cable\WinXP_2K folder —
double-click DPInst.exe to install the USB drivers. Drivers for other operating sys­tems are available online at www.ftdichip.com/Drivers/VCP.htm.

14 RabbitCore RCM3305/RCM3315

If Dynamic C appears to compile the BIOS successfully, but you then receive a communi­cation error message when you compile and load the sample program, it is possible that
your PC cannot handle the higher program-loading baud rate. Try changing the maximum
download rate to a slower baud rate as follows.

• Locate the Serial Options dialog in the Dynamic C O ptions > Project Options >
Communications menu. Select a slower Max download baud rate.

If a program compiles and loads, but then loses target communication before you can
begin debugging, it is possible that your PC cannot handle the default debugging baud
rate. Try lowering the debugging baud rate as follows.

• Locate the Serial Options dialog in the Dynamic C O ptions > Project Options >
Communications menu. Choose a lower debug baud rate.

2.5 Where Do I Go From Here?

If the sample program ran fine, you are now ready to go on to other sample programs and to
develop your own applications. The sour ce code for the sample programs is provided to allow

you to modify them for your own use. The RCM3305/RCM3315 User’s Manual also
provides complete hardware reference information and describes the software function calls

for the RCM3305 and the RCM3315, the Prototyping Board, and the optional LCD/keypad
module. The RCM3309/RCM3319 User’s Manual also provides complete hardware refer-
ence information and describes the software function calls for the RCM3309 and the
RCM3319, the Prototyping Board, and the optional LCD/keypad module.

For advanced development topics, refer to the Dynamic C User’s Manual and the
Dynamic C TCP/IP User’s Manual, also in the online documentation set.

2.5.1 Technical Support

NOTE: If you purchased your RCM3305 series module t hrough a distributor or through a

Rabbit partner, contact the distributor or p artner first for technical support.

User’s Manual 15

16 RabbitCore RCM3305/RCM3315

3. RUNNING SAMPLE PROGRAMS

To develop and debug programs for the RCM3305/RCM3315
(and for all other Rabbit hardware), you must install and use
Dynamic C.

3.1 Introduction

To help familiarize you with the RCM3305 and RCM3315 modules, Dynamic C includes
several sample programs. Loading, executing and studying these programs will give you a
solid hands-on overview of the RCM3305/RCM3315’s capabilities, as well as a quick
start using Dynamic C as an application development tool.

NOTE: The sample programs assume that you have at least an el ementary grasp of the C

programming language. If you do not, see the introductory pages of the Dynamic C
User’s Manual for a suggested reading list.

More complete information on Dynamic C is provided in the Dynamic C User’s Manual.
In order to run the sample programs discussed in this chapter and elsewhere in this manual,

1. Your RCM3305/RCM3315 must be plugged in to the Prototyping Board as described
in Chapter 2, “Getting Started.”

2. Dynamic C must be installed and running on your PC.

3. The programming cable must connect the programming header on the RCM3305/
RCM3315 to your PC.

4. Power must be applied to the RCM3305/RCM3315 through the Prototyping Board.

Refer to Chapter 2, “Getting Started,” if you need further information on these steps.
To run a sample program, open it with the File menu, then press function key F9 to com-

pile and run the program. The RCM3305/RCM3315 must be in Program Mode (see
Figure 8) and must be connected to a PC using the programming cable.

User’s Manual 17

3.2 Sample Programs

Of the many sample programs included with Dynamic C, several are specific to the
RCM3305 and the RCM3315. Sample programs illustrating the general operation of the
RCM3305/RCM3315, serial communication, and the serial flash are provided in the

SAMPLES\RCM3300 folder. Each sample program has comments that describe the purpose

and function of the program. Follow the instructions at the beginning of the sample pro­gram. Note that the RCM3305/RCM3315 must be installed on the Prototyping Board
when using the sample programs described in this chapter.

• CONTROLLED.c—Demonstrates use of the digital inputs by having you turn the LEDs
on the Prototyping Board on or off from the STDIO window on your PC.

Once you compile and run CONTROLLED.C, the following display will appear in the
Dynamic C STDIO window.

Press “2” or “3” or “4”or “5”on your keyboard to select LED DS3 or DS4 or DS5 or
DS6 on the Prototyping Board. Then follow the prompt in the Dynamic C STDIO win­dow to turn the LED on or off.

• FLASHLED.c—Demonstrates assembly-language program by flashing the USR LED
on the RCM3305/RCM3315 and LEDs DS3, DS4, DS5, and DS6 on the Prototyping
Board.

• SWRELAY.c—Demonstrates the relay-switching function call using the relay installed
on the Prototyping Board through screw-terminal header J17.

• TOGGLESWITCH.c—Uses costatements to detect switches S2 and S3 using debounc­ing. The corresponding LEDs (DS3 and DS4) will turn on or off.

Once you have loaded and executed these five programs and have an understanding of
how Dynamic C and the RCM3305/RCM3315 modules interact, you can move on and try
the other sample programs, or begin building your own.

18 RabbitCore RCM3305/RCM3315

3.2.1 Use of Serial Flash

3.2.1.1 Onboard Serial Flash

The following sample programs can be found in the SAMPLES\RCM3300\SerialFlash
folder.

• SFLASH_INSPECT.c—This program is a handy utility for inspect ing the contents of a
serial flash chip. When the sample program starts running, it attempts to initialize a
serial flash chip on Serial Port B. Once a serial flash chip is found, the user can perform
two different commands to either print out the contents of a specified page or clear (set
to zero) all the bytes in a specified page.

• SFLASH_LOG.c—This program runs a simple Web server and stores a log of hits in
the serial flash. This log can be viewed and cleared from a browser.

3.2.1.2 SF1000 Serial Flash Card

The following sample progra m can be found in the SAMPLES\RCM3300\SF1000 folder.

• SERFLASHTEST.c—An optional SF1000 Serial Flash card is required to run this dem­onstration. Install the Serial Flash card into socket J11 on the Prototyping Board. This
sample program demonstrates how to read and write from/to the Serial Flash card.

3.2.2 Serial Communication

The following sample programs can be found in the SAMPLES\RCM3300\SERIAL folder.

• FLOWCONTROL.C—This program demonstrates hardware flow control by configuring
Serial Port F for CTS /RTS with serial data coming from TxE (Ser ial P ort E) a t 115,200
bps. One character at a time is received and is displayed in the STDIO window.

To set up the Prototyping Board, you will need to tie
TxE and RxE together on the RS-232 header at J14,
and you will also tie TxF and RxF together as shown in
the diagram.

J14

TxE RxE GND TxF RxF 485+ GND 485

A repeating triangular pattern should print out in the

STDIO window. The program will periodically switch flow control on or off to demon-

strate the effect of no flow control.

• PARITY.C—This program demonstrates the use of parity modes by repeatedly sending
byte values 0–127 from Serial Port E to Serial Port F. The program will switch between
generating parity or not on Serial Port E. Serial Port F will always be checking parity,
so parity errors should occur during every other sequence.

To set up the Prototyping Board, you will need to tie
TxE and RxF together on the RS-232 header at J14 as
shown in the diagram.

The Dynamic C STDIO window will display the error

J14

TxE RxE GND TxF RxF 485+ GND 485

sequence.

User’s Manual 19

• SIMPLE3WIRE.C—This program demonstrates basic RS-232 serial communication.
Lower case characters are sent by TxE, and are received by RxF. The characters are
converted to upper case and are sent out by TxF , are received by RxE, and are displayed
in the Dynamic C STDIO window.

To set up the Prototyping Board, you will need to tie
TxE and RxF together on the RS-232 header at J14, and
you will also tie RxE and TxF together as shown in the
diagram.

J14

TxE RxE GND TxF RxF 485+ GND 485

• SIMPLE5WIRE.C—This program demonstrates 5-wire RS-232 serial communication
with flow control on Serial Port F and data flow on Serial Port E.

To set up the Prototyping Board, you will need to tie
TxE and RxE together on the RS-232 header at J14,
and you will also tie TxF and RxF together as shown in
the diagram.

J14

TxE RxE GND TxF RxF 485+ GND 485

Once you have compiled and run this program, you can
test flow control by disconnecting TxF from RxF while the program is running. Char­acters will no longer appear in the STDIO window, and will display again once TxF is
connected back to RxF.

• SWITCHCHAR.C—This program transmits and then receives an ASCII string on Serial
Ports E and F. It also displays the serial data received from both ports in the STDIO
window.

To set up the Prototyping Board, you will need to tie
TxE and RxF together on the RS-232 header at J14, and
you will also tie RxE and TxF together as shown in the
diagram.

J14

TxE RxE GND TxF RxF 485+ GND 485

Once you have compiled and run this program, press
and release S2 and S3 on the Prototyping Board. The data sent between the serial ports
will be displayed in the STDIO window.

Two sample programs, SIMPLE485MASTER.C and SIMPLE485SLAVE.C, are available
to illustrate RS-485 master/slave communication. To run these sample programs, you will
need a second Rabbit-based system with RS-485—another Rabbit single-board computer
or RabbitCore module may be used as long as you use the master or slave sample program
associated with that board.

Before running either of these sample programs on the RCM3305/RCM3315 assembly,
make sure pins 1–2 and pins 5–6 are jumpered together on header JP5 to use the RS-485
bias and termination resistors. The sample programs use Serial Port C as the RS-485 serial
port, and they use PD7 to enable/disable the RS-485 transmitter.

20 RabbitCore RCM3305/RCM3315

The RS-485 connections between the slave and master devices are as follows.

• RS485+ to RS485+

• RS485– to RS485–

• GND to GND

• SIMPLE485MASTER.C—This program demonstrates a simple RS-485 transmission of
lower case letters to a slave. The slave will send back converted upper case letters back
to the master and display them in the STDIO window. Use SIMPLE485SLAVE.C to
program the slave.

• SIMPLE485SLAVE.C—This program demonstrates a simple RS-485 transmission of
lower case letters to a master. The slave will send back converted upper case letters
back to the master and display them in the STDIO window. Use SIMPLE485MASTER.C
to program the master.

3.2.3 Real-Time Clock

If you plan to use the real-time clock functionality in your application, you will need to set
the real-time clock. Set the real-time clock using the SETRTCKB.C sample program from
the Dynamic C SAMPLES\RTCLOCK folder, using the onscreen prompts. The RTC_

TEST.C

sample program in the Dynamic C SAMPLES\RTCLOCK folder provides addi-

tional examples of how to read and set the real-time clock.

3.2.4 RabbitNet

Sample programs are available for each RabbitNet peripheral card, and can be found in the
Dynamic C SAMPLES\RabbitNet folder. When you run any of these sample programs
in conjunction with the RCM3305/RCM3315 and the Prototyping Board, you need to add
the line

#use rcm33xx.lib

at the beginning of the sample program.

TIP: You need to add #use rcm33xx.lib at the beginning of any sample program

that is not in the Dynamic C SAMPLES\RCM3300 folder.

3.2.5 Other Sample Programs

Section 6.6 describes the TCP/IP sample programs, and Appendix C.7 provides sample
programs for the optional LCD/keypad module that can be installed on the Prototyping
Board.

User’s Manual 21

22 RabbitCore RCM3305/RCM3315

4. HARDWARE REFERENCE

Chapter 4 describes the hardware components and principal hardware
subsystems of the RCM3305/RCM3315 modules. Appendix A,
“RCM3305/RCM331 5 Specific ations,” pr ovides com plete phys ical
and electrical specifications.

Figure 4 shows the Rabbit-based subsystems designed into the RCM3305/RCM3315.

Ethernet

Fast SRAM

(program)

Data

SRAM

Program

Flash

Serial

Flash

32 kHz

osc

RABBIT

Battery-Backup

44.2 MHz

3000

Circuit

RabbitCore Module

Figure 4. RCM3305/RCM3315 Subsystems

osc

®

Customer-specific

applications

CMOS-level signals

Level

converter

RS-232, RS-485

serial communication

drivers on motherboard

Customer-supplied
external 3 V battery

User’s Manual 23

4.1 RCM3305/RCM3315 Digital Inputs and Outputs

Figure 5 shows the RCM3305/RCM3315 pinouts for headers J3 and J4.

GND

PA7
PA5
PA3
PA1
PF3

PF1
PC0
PC2

n.c./PC4

PC6-TxA

PG0
PG2

PD4

PD2/TPO

PD6/TPI

LINK/n.c.

J3

STATUS
PA6
PA4
PA2
PA0
PF2
PF0
PC1
PC3
n.c./PC5
PC7-RxA
PG1
PG3
PD5
PD3/TPO+
PD7/TPI+
ACT/n.c.

/RES

PB2
PB4
PB6

PF4

PF6
PE7
PE5
PE3
PE0

PG6
PG4

/IORD

SMODE1

VRAM

+3.3 VIN

n.c.

J4

n.c. = not connected

These pinouts are as seen on

Note:

the Bottom Side of the module.

Figure 5. RCM3305/RCM3315 Pinouts

n.c./PB0
PB3
PB5
PB7
PF5
PF7
PE6
PE4
PE1
PG7
PG5
/IOWR
SMODE0
/RESET_IN
VBAT_EXT
GND
GND

The pinouts for the RCM3000, RCM3100, RCM3200, RCM3305/RCM3315, RCM3360/
RCM3370, and RCM3365/RCM3375 are almost compatible, except signals PB0, PC4, and PC5.
PB0, PC4, and PC5 are used for the SPI interface to the serial flash on the RCM3305 and the
RCM3315. Visit the Web site

for further information.

Headers J3 and J4 are standard 2 × 34 headers with a nominal 2 mm pitch. An RJ-45 Ether-

net port is also included with the RCM3305/RCM3315.
Pins 29–32 on header J3 are configured using 0 Ω resistors at locations JP4, JP5, JP6, and

JP7 to be PD2, PD3, PD6, and PD7 respectively. They may also be reconfigured to carry
the Ethernet signals TPI+, TPI–, TPO+, and TPO–.

Pins 33 and 34 on header J3 are wired to carry the LINK and ACT signals that illuminated
the corresponding LEDs on the RCM3305/RCM3315 module. These signals may be “dis­connected” by removing 0 Ω surface-mount resistors R41 and R42.

See Appendix A.5 for more information about the locations of these surface-mount
resistors.

24 RabbitCore RCM3305/RCM3315

Figure 6 shows the use of the Rabbit 3000 microprocessor ports in the RCM3305/
RCM3315 modules.

PC0, PC2

PC1, PC3

PG2PG3
PG6PG7

PB1, PC6, STATUS

PC7, /RESET,

SMODE0, SMODE1

4 Ethernet signals

PA0PA7

Port A

Port C

(Serial Ports C & D)

Port G

(Serial Ports E & F)

Programming

Port

(Serial Port A)

Ethernet

Port

RAM

PB2PB7

Port B

R

ABBIT

®

3000

Real-Time Clock

Watchdog

11 Timers

Slave Port

Clock Doubler

Backup Battery

Support

PD2PD7

Port D

Port E

(+Ethernet Port)

Port F

Port G

(+Serial Ports)

Misc. I/O

Flash

PE0PE1,
PE3PE7

PF0PF7

PG0PG1,
PG4PG5

/RES

/RES
/IORD
/IOWR

Figure 6. Use of Rabbit 3000 Ports

The ports on the Rabbit 3000 microprocessor used in the RCM3305/RCM3315 are config­urable, and so the factory defaults can be reconfigured. Table 2 lists the Rabbit 3000 fac­tory defaults and the alternate configurations.

User’s Manual 25

Table 2. RCM3305/RCM3315 Pinout Configurations

Pin Pin Name Default Use Alternate Use Notes

1 GND
2 STATUS Output (Status) Output

External data bus

3–10 PA[7:0] Parallel I/O

11 PF3 Input/Output QD2A
12 PF2 Input/Output QD2B

(ID0–ID7)

Slave port data bus

(SD0–SD7)

External Data Bus

13 PF1 Input/Output

14 PF0 Input/Output

QD1A
CLKC

QD1B
CLKD

15 PC0 Output TXD

Serial Port D

16 PC1 Input RXD
17 PC2 Output TXC

Serial Port C

18 PC3 Input RXC
19 PC4 Output TXB

20 PC5 Input RXB

Header J3

21 PC6 Output TXA
22 PC7 Input RXA

Serial Port B

RCM3305/RCM3315—

Not Connected (used for

onboard serial flash)

Serial Port A
(programming port)

23 PG0 Input/Output TCLKF Serial Clock F output
24 PG1 Input/Output RCLKF Serial Clock F input
25 PG2 Input/Output TXF

Serial Port F

26 PG3 Input/Output RXF
27 PD4 Input/Output ATXB
28 PD5 Input/Output ARXB
29 PD2/TPO– Input/Output TPOUT– *
30 PD3/TPO+ Input/Output TPOUT+ *
31 PD6/TPI– Input/Output TPIN– *
32 PD7/TPI+ Input/Output TPIN+ *
33 LINK Output
34 ACT Output

Optional Ethernet
transmit port

Optional Ethernet
receive port

Max. sinking current
draw 1 mA (see Note 1)

* Pins 29–32 are configured with 0 Ω surface-mount resistors at JP4, JP5, JP7, and JP8.

26 RabbitCore RCM3305/RCM3315

Table 2. RCM3305/RCM3315 Pinout Configurations (continued)

Pin Pin Name Default Use Alternate Use Notes

1 /RES Reset output

2 PB0 Input/Output CLKB

3 PB2 Input/Output

4 PB3 Input/Output

5 PB4 Input/Output

6 PB5 Input/Output

7 PB6 Input/Output IA4 External Address 4

8 PB7 Input/Output

9 PF4 Input/Output

IA0
/SWR

IA1
/SRD

IA2
SA0

IA3
SA1

IA5
/SLAVEATTN

AQD1B
PWM0

Reset output from Reset
Generator

RCM3305/RCM3315—
Not Connected (used for
onboard serial flash)

External Address 0
Slave port write

External Address 1
Slave port read

External Address 2
Slave port Address 0

External Address 3
Slave port Address 1

External Address 5
Slave Attention

10 PF5 Input/Output

Header J4

11 PF6 Input/Output

12 PF7 Input/Output

13 PE7 Input/Output

14 PE6 Input/Output I6 I/O Strobe 6

15 PE5 Input/Output

16 PE4 Input/Output

17 PE3 Input/Output I3 I/O Strobe 3

18 PE1 Input/Output

19 PE0 Input/Output

AQD1A
PWM1

AQD2B
PWM2

AQD2A
PWM3

I7
/SCS

I5
INT1B

I4
INT0B

I1
INT1A

I0
INT0A

I/O Strobe 7
Slave Port Chip Select

I/O Strobe 5
Interrupt 1B

I/O Strobe 4
Interrupt 0B

I/O Strobe 1
Interrupt 1A

I/O Strobe 0
Interrupt 0A

User’s Manual 27

Table 2. RCM3305/RCM3315 Pinout Configurations (continued)

Pin Pin Name Default Use Alternate Use Notes

20 PG7 Input/Output RXE
21 PG6 Input/Output TXE
22 PG5 Input/Output RCLKE Serial Clock E input
23 PG4 Input/Output TCLKE Serial Clock E ouput
24 /IOWR Output External write strobe
25 /IORD Output External read strobe

(0,0)—start executing at address zero
(0,1)—cold boot from slave port

26–27

28 /RESET_IN Input Input to Reset Generator
29 VRAM Output See Notes below table

30 VBAT_EXT 3 V battery Input

SMODE0,
SMODE1

(1,0)—cold boot from clocked Serial Port A

SMODE0 =1, SMODE1 = 1
Cold boot from asynchronous Serial Port A at

2400 bps (programming cable connected)

Serial Port E

Also connected to
programmi ng cable

Minimum bat tery

voltage 2.85 V
31 +3.3 VIN Power Input 3.15–3.45 V DC
32 GND
33 n.c. Reserved for future use
34 GND

Header J4

Notes

1. When using pins 33–34 on header J3 to drive LEDs, these pins can handle a sinking
current of up to 8 mA.

2. The VRAM voltage is temperature-dependent. If the VRAM voltage drops below about

1.2 V to 1.5 V, the contents of the battery-backed SRAM may be lost. If VRAM drops
below 1.0 V, the 32 kHz oscillator could stop running. Pay careful attention to this volt­age if you draw any current from this pin.

28 RabbitCore RCM3305/RCM3315

4.1.1 Memory I/O Interface

The Rabbit 3000 address lines (A0–A18) and all the data lines (D0–D7) are routed
internally to the onboard flash memory and SRAM chips. I/0 write (/IOWR) and I/0 read
(/IORD) are available for interfacing to external devices.

Parallel Port A can also be used as an external I/O data bus to isolate external I/O from the
main data bus. Parallel Port B pins PB2–PB5 and PB7 can also be used as an external
address bus.

When using the external I/O bus for a digital output or the LCD/keypad module on the
Prototyping Board, or for any other reason, you must add the following line at the begin­ning of your program.

#define PORTA_AUX_IO // required to enable external I/O bus

4.1.2 Other Inputs and Outputs

The status, /RESET_IN, SMODE0, and SMODE1 I/O are normally associated with the
programming port. Since the status pin is not used by the sys tem once a program has been
downloaded and is running, the status pin can then be used as a general-purpose CMOS
output. The programming port is described in more detail in Section 4.2.3.

/RES is an output from the reset circuitry that can be used to reset external peripheral
devices.

4.1.3 LEDs

The RCM3305/RCM3315 has three Ethernet status LEDs located beside the RJ-45 Ether­net jack—these are discussed in Section 4.2.

Addiitionally, there are two other LEDs. The SF LED at DS3 blinks when data are being
written to or read from the flash mass-storage device. The red USR LED at DS3 is a user­programmable LED, which is controlled by PD0 on the Rabbit 3000’s Parallel Port D. The
sample program FLASHLED.C provided in the Dynamic C SAMPLES\RCM3300 folder
shows how to set up and use this user-programmable LED.

User’s Manual 29

4.2 Serial Communication

The RCM3305/RCM3315 does not have any serial transceivers directly on the board.
However, a serial interface may be incorporated into the board the RCM3305/RCM3315
is mounted on. For example, the Prototyping Board has RS-232 and RS-485 transceiver
chips.

4.2.1 Serial Ports

There are six serial ports designated as Serial Ports A, B, C, D, E, and F. All six serial
ports can operate in an asynchronous mode up to the baud rate of the system clock divided
by 8. An asynchronous port can handle 7 or 8 data bits. A 9th bit address scheme, where
an additional bit is sent to mark the first byte of a message, is also supported.

Serial Port A is normally used as a programming port, but may be used either as an asyn­chronous or as a clocked serial port once the RCM3305/RCM3315 has been programmed
and is operating in the Run Mode.

Serial Port B is used to communicate with the serial flash on the RCM3305/RCM3315 and
is not available for other use.

Serial Ports C and D can also be operated in the clocked serial mode. In this mode, a clock
line synchronously clocks the data in or out. Either of the two communicating devices can
supply the clock.

Serial Ports E and F can also be configured as HDLC serial ports. The IrDA protocol is
also supported in SDLC format by these two ports.

30 RabbitCore RCM3305/RCM3315

4.2.2 Ethernet Port

Figure 7 shows the pinout for the RJ-45 Ethernet port (J2). Note that some Ethernet con­nectors are numbered in reverse to the order used here.

ETHERNET

RJ-45 Plug

1

RJ-45 Jack

1. E_Tx+

2. E_Tx

3. E_Rx+

6. E_Rx

8

Figure 7. RJ-45 Ethernet Port Pinout

The RJ-45 connector is shielded to minimize EMI effects to/from the Ethernet signals.
Three Ethernet status LEDs are located beside the RJ-45 Ethernet jack: ACT, LINK, and

SPEED. The yellow ACT LED at DS1 indicates ne two rk ac ti vity. The green LINK LED at

DS2 indicates that the RCM3305/RCM3315 is connected to a working network. The
green SPEED LED at DS4 is on to indicate when the RCM3305/RCM3315 is connected
to a 100Base-T Ethernet connection.

User’s Manual 31

4.2.3 Programming Port

The RCM3305/RCM3315 is programmed either through the serial programming port,
which is accessed using header J1, or through the Ethernet jack. The RabbitLink may be
used to provide a serial connection via the RabbitLink’s Ethernet jack. The programming
port uses the Rabbit 3000’s Serial Port A for communication; Serial Port A is not used
when programming is done over an Ethernet connection via the Dynamic C download
manager or the remote application update. Dynamic C uses the programming port to
download and debug programs.

The programming port is also used for the following operations.

• Cold-boot the Rabbit 3000 on the RCM3305/RCM3315 after a reset.

• Remotely download and debug a program over an Ethernet connection using the

RabbitLink EG2110.

• Fast copy designated portions of flash memory from one Rabbit-based board (the
master) to another (the slave) using the Rabbit Cloning Board.

In addition to Serial Port A, the Rabbit 3000 startup-mode (SMODE0, SMODE1), status,
and reset pins are available on the programming port.

The two startup mode pins determine what happens after a reset—the Rabbit 3000 is
either cold-booted or the program begins executing at address 0x0000.

The status pin is used by Dynamic C to determine whether a Rabbit microprocessor is
present. The status output has three different programmable functions:

1. It can be driven low on the first op code fetch cycle.

2. It can be driven low during an interrupt acknowledge cycle.

3. It can also serve as a general-purpose CMOS output.

The /RESET_IN pin is an external input that is used to reset the Rabbit 3000 and the
RCM3305/RCM3315 onboard peripheral circuits. The serial programming port can be
used to force a hard reset on the RCM3305/RCM3315 by asserting the /RESET_IN signal.

Alternate Uses of the Programming Port

All three clocked Serial Port A signals are available as

• a synchronous serial port

• an asynchronous serial port, with the clock line usable as a general CMOS I/O pin

The programming port may also be used as a serial port once the application is running.
The SMODE pins may then be used as inputs and the status pin may be used as an output.

Refer to the Rabbit 3000 Microprocessor User’s Manual for more information.

32 RabbitCore RCM3305/RCM3315

4.3 Programming Cable

The programming cable is used to connect the programming port of the RCM3305/
RCM3315 to a PC serial COM port. The programming cable converts the RS-232 voltage
levels used by the PC serail port to the CMOS voltage levels used by the Rabbit 3000.

When the

PROG connector on the programming cable is connected to the RCM3305/

RCM3315 programming port, programs can be downloaded and debugged over the serial
interface.

The DIAG connector of the prog r am m i n g c ab l e m a y b e u s ed on header J1 o f t h e RCM3305/
RCM3315 with the RCM3305/RCM3315 operating in the Run Mode. This allows the
programming port to be used as a regular serial port.

4.3.1 Changing Between Program Mode and Run Mode

The RCM3305/RCM3315 is automatically in Program Mode when the PROG connector
on the programming cable is attached, and is automatically in Run Mode when no pro­gramming cable is attached. When the Rabbit 3000 is reset, the operating mode is deter­mined by the state of the SMODE pins. When the programming cable’s PROG connector
is attached, the SMODE pins are pulled high, placing the Rabbit 3000 in the Program
Mode. When the programming cable’s PROG connector is not attached, the SMODE pins
are pulled low, causing the Rabbit 3000 to operate in the Run Mode.

GND IN3 IN2 IN1 IN0 +5V

U7

R62

C7

R65

R66

R8

R9

+5 V

GND

+3.3 V

BA2

BA3

BD0

BD1

BD2

BD3

BD4

GNDA3A1D0D2D4D6

A2

A0

D1D3D5

D7

GND

R42

C20

K1

To

D8

PC COM port

LCD1JC

J6

U6

BD5

J7

RABBITNET

R2

R7

R3R4R5

R6

C6

R10

J11

C14

C15

SERIAL FLASH/

MODEM

R19

R20

R18

BD6

BD7

J16

0.5 A @ 30 V

RELAY RATED

J17

C27

C28

R44

R43

C30C29

R45

R46

NO1 COM1 NC1 NO2 COM2 NC2

DS7

Q5

R47

RELAY

R48

J8

GND

GND

VBT

/RES

SM0

/IOWR

PG5

PG7

PE1

PE4

PE6

PF7

PF5

PB7

PB5

PB3

PB0

RCM3300
PROTOTYPING
BOARD

ACT

PD7

PD3

PD5

PG3

PG1

PC7

PC5

PC3

PC1

PF0

PF2

PA0

PA2

PA4

PA6

STAT

J9

S1

RESET

NC

+3.3 V

VRAM

SMODE1

/IORD

PG4

PG6

PE0

PE3

PE5

PF4 PF6 PE7

PB6

PB4

PB2

/RES_OUT

LINK

PD6

PD2

PD4

PG2

PG0

PC6

PC4

PC2

PC0

PF1

PF3

PA1

PA3

PA5

PA7

GND

JP1

L293D
H-DRIVER

R13

RP2

R17

C78

R15

C71

C77

R79

C72

C76

C70

C80

C82

R31
R54

R44

C58

C43

C34

U5

Y2

R23

R17

C28

R18

R22

U4

R19

C24

C25

C20

C16

C11

U1

R6

C6

C7

R5

C4

JB

Y1

R2

HO4

HO3

HO2

HO1

R30

R31

R32

DS5 DS6

DS4

VMA+ MDA1 MDA2 MDA3 MDA4 VMA

C3

U2

C4

OUT

C74

U13

R64
R63
R62
R61
R60

C81

R45

CX1

C33
C32
C31

UX1

R16

SO20W

C23

CX2

C14

C19

U2

R12

R11

R13

C15

R10

C10

R9

UX2

SO20W

R8

J1

RP1

J13

R1

C21

C22

C23

C24

J14

TxE RxE GND TxF RxF 485+ GND 485

GND

J1

C1

C9

U4

USR SF LINK ACT

DS3

DS1

GND

+DC

C10

C11

DS2

CORE MODULE

L1

JP5

R15

R14

R21

Q1

Q2Q3Q4

R28

R27

S3

POWER

GND

DS1

R1
J2

J3

D1

C2

U1

J10

00 01 02 03 04 05 06 07

OUT

C12

JP4

SPEED

R16

R38
R37

R50

DS4

C42

R36

R35

C90

L3

J2

JP6

C35

C30

R21

JP7

JP8

JP4

C26

C27

U8

U3

C21

C22

C16

C17

C18

R24

R23

R22

C12

C13

C9

C8

R7

Q1

C2C3R3

J12

R50

D4

Q6

R49

CORE

DS2

RP1

C13

U5

RCM33XX

C79

L2

C86

R81

R82

R30

R53

C61

C29

R20

C5

C1

GND

D5D6D7

R29

DS3

+DC

D2

L1

R11

R12

R67

C8

R68
R69
R70

GND/EGND

JA

R25

R26

S2

VMB MDB1 MDB2 MDB3 MDB4 VMB+

J5

J4

PF0_CLKD

PF0_QD

JP2

U3
L293D
H-DRIVER

R14

C5

BT1

+5 V

GND

+3.3 V

RX13

RX16

RX14

RX17

RX18

RX15

UX4

DX1

SOT23-6

UX5

DX2

SOT23-6

C18

C17

R33

R34

C25

PROG

R36

C26

U10

R35

R37

JP5

R38

DIAG

U9

+5V QD2A QD2B QD1A QD1B GND

R52 R53

R51

JP3

R55

LCD1JA

Programming Cable

LCD1JB

Colored edge

R54

R56

R57

R58

R39

+V

/RES

/CS

+BKLT

R40

U11

R60 R61

R59

R63

R64

LCD

/CS

BA0

BA1

J15

LED0

LED2

LED4

LED6

GND

LED1

LED3

LED5

C19

R41

U12

KEYPAD DISPLAY BOARD

RESET

RESET RCM3305/RCM3315 when changing mode:

Press RESET button (if using Prototyping Board),

OR

Cycle power off/on

after removing or attaching programming cable.

Figure 8. Switching Between Program Mode and Run Mode

User’s Manual 33

A program “runs” in either mode, but can only be downloaded and debugged when the
RCM3305/RCM3315 is in the Program Mode.

Refer to the Rabbit 3000 Microprocessor User’s Manual for more information on the pro-
gramming port.

4.3.2 Standalone Operation of the RCM3305/RCM3315

The RCM3305/RCM3315 must be programmed via the Prototyping Board or via a similar
arrangement on a customer-supplied board. Once the RCM3305/RCM3315 has been pro­grammed successfully, remove the programming cable from the programming connector
and reset the RCM3305/RCM3315. The RCM3305/RCM3315 may be reset by cycling the
power off/on or by pressing the RESET button on the Prototyping Board. The RCM3305/
RCM3315 module may now be removed from the Prototyping Board for end-use
installation.

CAUTION: Disconnect power to the Prototyping Board or other boards when removing

or installing your RCM3305/RCM3315 module to protect against inadvertent shorts
across the pins or damage to the RCM3305/RCM3315 if the pins are not plugged in
correctly. Do not reapply power until you have verified that the RCM3305/RCM3315
module is plugged in correctly.

34 RabbitCore RCM3305/RCM3315

4.4 Other Hardware

4.4.1 Clock Doubler

The RCM3305/RCM3315 takes advantage of the Rabbit 3000 microprocessor’s internal
clock doubler. A built-in clock doubler allows half-frequency crystals to be used to reduce
radiated emissions. The 44.2 MHz frequency specified for the RCM3305/RCM3315 is
generated using a 22.12 MHz resonator.

The clock doubler may be disabled if 44.2 MHz clock speeds are not required. This will
reduce power consumption and further reduce radiated emissions. The clock doubler is
disabled with a simple configuration macro as shown below.

1. Select the “Defines” tab from the Dynamic C Options > Project Options menu.

2. Add the line CLOCK_DOUBLED=0 to always disable the clock doubler.
The clock doubler is enabled by default, and usually no entry is needed. If you need to

specify that the clock doubler is always enabled, add the line CLOCK_DOUBLED=1 to
always enable the clock doubler.

3. Click OK to save the macro. The clock doubler will now remain off whenever you are
in the project file where you defined the macro.

4.4.2 Spectrum Spreader

The Rabbit 3000 features a spectrum spreader, which helps to mitigate EMI problems. The
spectrum spreader is on by default, but it may also be turned of f or set to a stronger setting.
The means for doing so is through a simple configuration macro as shown below.

1. Select the “Defines” tab from the Dynamic C Options > Project Options menu.

2. Normal spreading is the default, and usually no entry is needed. If you need to specify
normal spreading, add the line

ENABLE_SPREADER=1

For strong spreading, add the line

ENABLE_SPREADER=2

To disable the spectrum spreader, add the line

ENABLE_SPREADER=0

NOTE: The strong spectru m-s prea ding se tti ng is unne cess ary fo r th e RCM3305/RCM3 315.

3. Click OK to save the macro. The spectrum spreader will now be set to the state specified
by the macro value whenever you are in the project file where you defined the macro.

NOTE: Refer to the Rabbit 3000 Microprocessor User’s Manual for more information

on the spectrum-spreading setting and the maximum clock speed.

User’s Manual 35

4.5 Memory

4.5.1 SRAM

RCM3305/RCM3315 boards have 512K of program-execution fast SRAM at U11. The
program-execution SRAM is not battery-backed. There are 512K of battery-backed data
SRAM installed at U10.

4.5.2 Flash EPROM

RCM3305/RCM3315 boards also have 512K of flash EPROM at U9.

NOTE: Rabbit recommends that any customer applications should not be constrained by

the sector size of the flash EPROM since it may be necessary to change the sector size
in the future.

Writing to arbitrary flash memory addresses at run time is also discouraged. Instead, use a
portion of the “user block” area to store persistent data. The functions writeUser-
Block() and readUserBlock() are provided for this. Refer to the Rabbit 3000

Microprocessor Designer’s Handbook

additional information.

4.5.3 Serial Flash

A serial flash is supplied on the RCM3305 and the RCM3315 to store data and Web pages.
Sample programs in the SAMPLES\RCM3300 folder illustrate the use of the serial flash.
These sample programs are described in Section 3.2.1, “Use of Serial Flash.”

and the Dynamic C Function Reference Manual for

4.5.4 Dynamic C BIOS Source Files

The Dynamic C BIOS source files handle different standard RAM and flash EPROM sizes
automatically.

36 RabbitCore RCM3305/RCM3315

5. SOFTWARE REFERENCE

Dynamic C is an integrated development system for writing
embedded software. It runs on an IBM-compatible PC and is
designed for use with controllers based on the Rabbit mi cropro­cessor. Chapter 5 describes the libraries and function calls
related to the RCM3305/RCM3315.

5.1 More About Dynamic C

Dynamic C has been in use worldwide since 1989. It is specially designed for program­ming embedded systems, and features quick compile and interactive debugging. A com­plete reference guide to Dynamic C is contained in the Dynamic C User’s Manual.

You have a choice of doing your software development in the flash memory or in the static
SRAM included on the RCM3305/RCM3315. The flash memory and SRAM options are
selected with the Options > Program Options > Compiler menu.

The advantage of working in RAM is to save wear on the flash memory, which is limited
to about 100,000 write cycles. The disadvantage is that the code and data might not both
fit in RAM.

NOTE: An application should be run from the program execution SRAM after the pro-

gramming cable is disconnected. Your final code must always be stored in flash memory
for reliable operation. RCM3305/RCM3315 modules running at 44.2 MHz have a fast
program execution SRAM tha t is no t batt ery-b acked. Se lect

Run in RAM

store the code in flash and copy it to the fast program execution SRAM at run-time to
take advantage of the faster clock speed. This option optimizes the performance of
RCM3305/RCM3315 modules running at 44.2 MHz.

NOTE: Do not depend on the flash memory sector size or type in your program logic.

The RCM3305/RCM3315 and Dynamic C were designed to accommodate flash
devices with various sector sizes in response to the volatility of the flash-memory
market.

Developing software with Dynamic C is simple. Users can write, compile, and test C and
assembly code without leaving the Dynamic C development environment. Debugging
occurs while the application runs on the target. Alternatively, users can compile a program
to an image file for later loading. Dynamic C runs on PCs under Windows 2000 and

later—see Rabbit’s Technical Note TN257, Running Dynamic C® With Windows Vista®,

from the Dynamic C Options > Project Options > Compiler menu to

Code and BIOS in Flash,

User’s Manual 37

for additional information if you are using a Dynamic C release prior to v. 9.60 under Win­dows Vista. Programs can be downloaded at baud rates of up to 460,800 bps after the pro­gram compiles.

Dynamic C has a number of standard features.

• Full-feature source and/or assembly-level debugger, no in-circuit emulator required.

• Royalty-free TCP/IP stack with source code and most common protocols.

• Hundreds of functions in source-code libraries and sample programs:

X Exceptionally fast support for floating-point arithmetic and transcendental functions.
X RS-232 and RS-485 serial communication.
X Analog and digital I/O drivers.

X I2C, SPI, GPS, file system.
X LCD display and keypad drivers.

• Powerful language extensions for cooperative or preemptive multitasking

• Loader utility program to load binary images into Rabbit targets in the absence of

Dynamic C.

• Provision for customers to create their own source code libraries and augment on-line
help by creating “function description” block comments using a special format for
library functions.

• Standard debugging features:

X Breakpoints—Set breakpoints that can disable interrupts.
X Single-stepping—Step into or over functions at a source or machine code level, µC/OS-II aware.
X Code disassembly—The disassembly window displays addresses, opcodes, mnemonics, and

machine cycle times. Switch between debugging at machine-code level and source-code level by
simply opening or closing the disassembly window.

X Watch expressions—Watch expressions are compiled when defined, so complex expressions

including function calls may be placed into watch expressions. Watch expressions can be updated
with or without stopping program execution.

X Regi ster window— All process or registers and f lags are di splayed. T he contents of gener al register s

may be modified in the window by the user.

X Stack window—shows the contents of the top of the stack.
X Hex memory dump—displays the contents of memory at any address.
X STDIO window—printf outputs to this window and keyboard input on the host PC can be

detected for debugging purposes.

printf output may also be sent to a serial port or file.

38 RabbitCore RCM3305/RCM3315

5.1.1 Developing Programs Remotely with Dynamic C

Dynamic C is an integrated development environment that allows you to edit, compile,
and debug your programs. Dynamic C has the ability to allow programming over the
Internet or local Ethernet. This is accomplished in one of two ways.

1. V ia the Rabbit RabbitLink, which allows a Rabbit-based tar get to have programs down­loaded to it and debugged with the same ease as exists when the target is connected
directly to a PC.

2. The RCM3305/RCM3315 has a featured remote application update written specifically
to allow the RCM3305/RCM3315 to be programmed over the Internet or local Ether­net. These programs,

SAMPLES\RCM3300\RemoteApplicationUpdate

DLP_STATIC.C

and

DLP_WEB.C

, are available in the Dynamic C

folder. Complete information on

the use of these programs is provided in the Remote Application Update instructions,
which are available with the online documentation.

Dynamic C provides sample programs to illustrate the use of a download manager.

User’s Manual 39

5.2 Dynamic C Functions

5.2.1 Digital I/O

The RCM3305/RCM3315 was designed to interface with other systems, and so there are
no drivers written specifically for the I/O. The general Dynamic C read and write func­tions allow you to customize the parallel I/O to meet your specific needs. For example, use

WrPortI(PEDDR, &PEDDRShadow, 0x00);

to set all the Port E bits as inputs, or use

WrPortI(PEDDR, &PEDDRShadow, 0xFF);

to set all the Port E bits as outputs.
When using the external I/O bus on the Rabbit 3000 chip, add the line

#define PORTA_AUX_IO // required to enable external I/O bus

to the beginning of any programs using the external I/O bus.
The sample programs in the Dynamic C

SAMPLES/RCM3300

folder provide further

examples.

5.2.2 SRAM Use

The RCM3305/RCM3315 have a battery-backed data SRAM and a program-execution
SRAM. Dynamic C provides the

protected

keyword to identify variables that are to be
placed into the battery-backed SRAM. The compiler generates code that creates a backup
copy of a protected variable before the variable is modified. If the system resets while the
protected variable is being modified, the variable's value can be restored when the system
restarts.

The sample code below shows how a protected variable is defined and how its value can
be restored.

protected nf_device nandFlash;

int main() {
...

_sysIsSoftReset(); // restore any protected variables

The

bbram

keyword may also be used instead if there is a need to store a variable in bat-

tery-backed SRAM without affecting the performance of the application program. Data
integrity is not assured when a reset or power failure occurs during the update process.

Additional information on

bbram

and

protected

variables is available in the Dynamic C

User’s Manual.

40 RabbitCore RCM3305/RCM3315

5.2.3 Serial Co mmunication Drivers

Library files included with Dynamic C provide a full range of serial communications sup­port. The

PACKET.LIB

RS232.LIB

library provides packet-based serial functions where packets can be delimited

library provides a set of circular-buffer-based serial functions. The

by the 9th bit, by transmission gaps, or with user-defined special characters. Both libraries
provide blocking functions, which do not return until they are finished transmitting or
receiving, and nonblocking functions, which must be called repeatedly until they are fin­ished, allowing other functions to be performed between calls. For more information, see
the Dynamic C Function Reference Manual and Technical Note TN213, Rabbit Serial
Port Software.

5.2.4 TCP/IP Drivers

The TCP/IP drivers are located in the

LIB\TCPIP

folder. Complete information on these

libraries and the TCP/IP functions is provided in the Dynamic C TCP/IP User’s Manual.

5.2.5 Serial Flash Drivers

The Dynamic C

SerialFlash\SFLASH.LIB

library is used to interface to serial flash
memory devices on an SPI bus such as the serial flash on board the RCM3305 and the
RCM3315, which use Serial Port B as an SPI port. The library has two sets of function
calls—the first is maintaine d for c ompatibility with pre vious versions of t he

SFLASH.LIB

library. The functions are all blocking and only work for single flash devices. The new
functions, which should be used for the RCM3305/RCM3315, make use of an

sf_device

structure as a handle for a specific serial flash device. This allows multiple

devices to be used by an application.
More information on these function calls is available in the Dynamic C Function Refer-

ence Manual.

User’s Manual 41

5.2.6 Prototyping Board Functions

The functions described in this section are for use with the Prototyping Board features.
The source code is in the Dynamic C SAMPLES\RCM3300\RCM33xx.LIB library if you
need to modify it for your own board design.

The

RCM33xx.LIB

library is supported by the RN_CFG_RCM33.LIB—library, which is
used to configure the RCM3305/RCM3315 for use with RabbitNet peripheral boards on
the Prototyping Board.

Other generic functions applicable to all devices based on Rabbit microprocessors are
described in the Dynamic C Function Reference Manual.

5.2.6.1 Board Initialization

void brdInit (void);

Call this function at the beginning of your program. This function initializes Parallel Ports A through G
for use with the Prototyping Board.

Summary of Initialization

1. I/O port pins are configured for Prototyping Board operation.

2. Unused configurable I/O are set as tied inputs or outputs.

3. External I/O are disabled.

4. The LCD/keypad module is disabled.

5. RS-485 is not enabled.

6. RS-232 is not enabled.

7. LEDs are off.

8. Ethernet select is disabled.

9. Mass-storage flash select is disabled.

10. Motor control is disabled.

11. The RabbitNet SPI interface is disabled.

12. The relay is set to normally closed positions.

RETURN VALUE

None.

42 RabbitCore RCM3305/RCM3315

5.2.6.2 Digital I/O

int digIn(int channel);

Reads the input state of inputs on Prototyping Board headers J5 and J6. D o not use this function if you
configure these pins for alternate use after

PARAMETERS

channels

is the channel number corresponding to the signal on header J5 or J6

0—IN0
1—IN1
2—IN2
3—IN3
4—QD1B
5—QD1A
6—QD2B
7—QD2A

RETURN VALUE

The logic state (0 or 1) of the input.

SEE ALSO

brdInit

brdInit()

is called.

void digOut(int channel, int value);

Writes a value to an output channel on Prototyping Board header J10. Do not use this function if you
have installed the stepper motor chips at U2 and U3.

PARAMETERS

channel is output channel 0–7 (OUT00–OUT07).
value is the value (0 or 1) to output.

RETURN VALUE

None.

SEE ALSO

brdInit

User’s Manual 43

5.2.6.3 Switches, LEDs, and Relay

int switchIn(int swin);

Reads the state of a switch input.

PARAMETERS

swin

is the switch input to read:

2—S2
3—S3

RETURN VALUE

State of the switch input:

1 = open
0 = closed

SEE ALSO

brdInit

void ledOut(int led, int value);

Controls LEDs on the Prototyping Board and on the RCM3305/RCM3315.

PARAMETERS

led is the LED to control:

0 = red User LED on RCM3305/RCM3315
3 = DS3 on Prototyping Board
4 = DS4 on Prototyping Board
5 = DS5 on Prototyping Board
6 = DS6 on Prototyping Board

value

is the value used to control the LED:

0 = off
1 = on

RETURN VALUE

None.

SEE ALSO

brdInit

44 RabbitCore RCM3305/RCM3315

void relayOut(int relay, int value);

Sets the position for the relay common contact. The default position is for normally closed contacts.

PARAMETERS

relay is the one relay (1)
value is the value used to connect the relay common contact:

0 = normally closed positions (NC1 and NC2)
1 = normally open positions (NO1 and NO2)

RETURN VALUE

None.

SEE ALSO

brdInit

5.2.6.4 Serial Communication

void ser485Tx(void);

Enables the RS-485 transmitter. Transmitted data are echoed back into the receive data buffer. The
echoed data may be used as an indicator for disabling the transmitter by using o ne of the fo llowing m eth­ods:

Byte mode—disable the transmitter after the same byte that is transmitted is detected in the receive

data buffer.

Block data mode—disable the transmitter after the same number of bytes transmitted are detected in

the receive data buffer.

Remember to call the

SEE ALSO

ser485Rx

serXopen()

function before running this function.

void ser485Rx(void);

Disables the RS-485 transmitter. This puts the device into the listen mode, which allows it to receive data
from the RS-485 interface.

Remember to call the

SEE ALSO

ser485Tx

serXopen()

function before running this function.

User’s Manual 45

5.2.6.5 RabbitNet Port

The function calls described in this section are used to configure the RabbitNet port on the
Prototyping Board for use with RabbitNet peripheral cards. The user’s manual for the spe­cific peripheral card you are using contains additional function calls related to the Rabbit­Net protocol and the individual peripheral card. Appendix E provides additional
information about the RabbitNet.

These RabbitNet peripheral cards are available at the present time.

• Digital I/O Card (RN1100)

• A/D Converter Card (RN1200)

• Relay Card (RN1400)

• Keypad/Display Interface (RN1600)

• D/A Converter Card (RN1300)

Before using the RabbitNet port, add the following lines at the start of your program.

#define RN_MAX_DEV 10 // max number of devices
#define RN_MAX_DATA 16 // max number of data bytes in any transaction
#define RN_MAX_PORT 2 // max number of serial ports

Set the following bits in RNSTATUSABORT to abort transmitting data afte r the status byte is
returned. This does not affect the status byte and still can be interpreted. Set any bit com­bination to abort:

bit 7—device busy is hard-coded into driver
bit 5—identifies router or slave
bits 4,3,2—peripheral-board-specific bits
bit 1—com mand rejected
bit 0—watchdog timeout

#define RNSTATUSABORT 0x80
// hard-coded driver default to abort if the peripheral board is busy

void rn_sp_info();

Provides rn_init() with the serial port control information needed for RCM3305/RCM3315 modules.

RETURN VALUE

None.

46 RabbitCore RCM3305/RCM3315

void rn_sp_close(int port);

Deactivates the RCM3305/RCM3315 RabbitNet port as a clocked serial port. This call is also used by
rn_init().

PARAMETERS

portnum = 0

RETURN VALUE

None

void rn_sp_enable(int portnum);

This is a macro that enables or asserts the RCM3305/RCM3315 RabbitNet port chip select prio r to data
transfer.

PARAMETERS

portnum = 0

RETURN VALUE

None

void rn_sp_disable(int portnum);

This is a macro that disables or deasserts the RCM3305/RCM3315 RabbitNet port chip select to invali­date data transfer.

PARAMETERS

portnum = 0

RETURN VALUE

None.

User’s Manual 47

5.3 Upgrading Dynamic C

5.3.1 Extras

Dynamic C installations are designed for use with the board they are included with, and
are included at no charge as part of our low-cost kits.

Starting with Dynamic C version 9.60, Dynamic C includes the popular µC/OS-II real­time operating system, point-to-point protocol (PPP), FAT file system, RabbitWeb, and
other select libraries. Rabbit also offers for purchase the Rabbit Embedded Security Pack
featuring the Secure Sockets Layer (SSL) and a specific Advanced Encryption Standard
(AES) library.

In addition to the Web-based technical support included at no extra charge, a one-year
telephone-based technical support subscription is also available for purchase.

48 RabbitCore RCM3305/RCM3315

6. USING THE TCP/IP FEATURES

6.1 TCP/IP Connections

Programming and development can be done with the RCM3305/RCM3315 modules with­out connecting the Ethernet port to a network. However, if you will be running the sample
programs that use the Ethernet capability or will be doing Ethernet-enabled development,
you should connect the RCM3305/RCM3315 module’s Ethernet port at this time.

Before proceeding you will need to have the following items.

• If you don’t have Ethernet access, you will need at least a 10Base-T Ethernet card
(available from your favorite computer supplier) installed in a PC.

• Two RJ-45 straight-through Ethernet cables and a hub, or an RJ-45 crossover Ethernet
cable.

A straight-through and a crossover Ethernet cable are included in both the RCM3305/
RCM3315 Development Kit. Figure 9 sho w s ho w to identi fy t h e t wo c a b l e s b as ed on the
wires in the transparent RJ-45 connectors.

Same

color order

in connectors

Different

color order

in connectors

Straight­Through

Cable

Figure 9. How to Identify Straight-Through and Crossover Ethernet Cables

Ethernet cables and a 10Base-T Ethernet hub are available from Rabbit in a TCP/IP tool
kit. .

User’s Manual 49

Crossover

Cable

Now you should be able to make your connections.

1. Connect the AC adapter and the programming cable as shown in Chapter 2, “Getting
Started.”

2. Ethernet Connections
There are four options for connecting the RCM3305/RCM3315 module to a network

for development and runtime purposes. The first two options permit total freedom of
action in selecting network addresses and use of the “network,” as no action can inter­fere with other users. We recommend one of these options for initial development.

• No LAN — The simplest alternative for desktop development. Connect the
RCM3305/RCM3315 module’s Ethernet port directly to the PC’s network interface
card using an RJ-45 crossover cable. A crossover cable is a special cable that flips
some connections between the two connectors and permits direct connection of two cli­ent systems. A standard RJ-45 network cable will not work for this purpose.

• Micro-LAN — Another simple alternative for desktop development. Use a small Eth­ernet 10Base-T hub and connect both the PC’s network interface card and the
RCM3305/RCM3315 module’s Ethernet port to it using standard network cables.

The following options require more care in address selection and testing actions, as
conflicts with other users, servers and systems can occur:

• LAN — Connect the RCM3305/RCM3315 module’s Ethernet port to an existing
LAN, preferably one to which the development PC is already connected. You will need
to obtain IP addressing information from your network administrator.

• WAN — The RCM3305/RCM3315 is capable of direct connection to the Internet and
other Wide Area Networks, but exceptional care should be used with IP address
settings and all network-related programming and development. We recommend that
development and debugging be done on a local network before connecting a Rabbit­Core system to the Internet.

TIP: Checking and debugging the initial setup on a micro-LAN is recommended before

connecting the system to a LAN or WAN.

The PC running Dynamic C does not need to be the PC with the Ethernet card.

3. Apply Power
Plug in the AC adapter. The RCM3305/RCM3315 module and Prototyping Board are

now ready to be used.

50 RabbitCore RCM3305/RCM3315

6.2 TCP/IP Primer on IP Addresses

Obtaining IP addresses to interact over an existing, operating, network can involve a num­ber of complications, and must usually be done with cooperation from your ISP and/or
network systems administrator. For this reason, it is suggested that the user begin instead
by using a direct connection between a PC and the RCM3305/RCM3315 using an Ether­net crossover cable or a simple arrangement with a hub. (A crossover cable should not be
confused with regular straight through cables.)

In order to set up this direct connection, the user will have to use a PC without networking,
or disconnect a PC from the corporate network, or install a second Ethernet adapter and set
up a separate private network attached to the second Ethernet adapter. Disconnecting your
PC from the corporate network may be easy or nearly impossible, depending on how it is
set up. If your PC boots from the network or is dependent on the network for some or all
of its disks, then it probably should not be disconnected. If a second Ethernet adapter is
used, be aware that Windows TCP/IP will send messages to one adapter or the other,
depending on the IP address and the binding order in Microsoft products. Thus you should
have different ranges of IP addresses on your private network from those used on the cor­porate network. If both networks service the same IP address, then Windows may send a
packet intended for your private network to the corporate network. A similar situation will
take place if you use a dial-up line to send a packet to the Internet. Windows may try to
send it via the local Ethernet network if it is also valid for that network.

The following IP addresses are set aside for local networks and are not allowed on the
Internet: 10.0.0.0 to 10.255.255.255, 172.16.0.0 to 172.31.255.255, and 192.168.0.0 to

192.168.255.255.
The RCM3305/RCM3315 uses a 10/100Base-T type of Ethernet connection, which is the

most common scheme. The RJ-45 connectors are similar to U.S. style telephone connec­tors, except they are larger and have 8 contacts.

An alternative to the direct connection using a crossover cable is a direct connection using
a hub. The hub relays packets received on any port to all of the ports on the hub. Hubs are
low in cost and are readily available. The RCM3305/RCM3315 uses 10/100 Mbps Ether­net, so the hub or Ethernet adapter can be a 10 Mbps unit, a 100 Mbps unit, or a 10/100
Mbps unit.

In a corporate setting where the Internet is brought in via a high-speed line, there are typi­cally machines between the outside Internet and the internal network. These machines
include a combination of proxy servers and firewalls that filter and multiplex Internet traf­fic. In the configuration below, the RCM3305/RCM3315 could be given a fixed address
so any of the computers on the local network would be able to contact it. It may be possi­ble to configure the firewall or proxy server to allow hosts on the Internet to directly con­tact the controller, but it would probably be easier to place the controller directly on the
external network outside of the firewall. This avoids some of the configuration complica­tions by sacrificing some security.

User’s Manual 51

Hub(s)

T1 in

Adapter

Ethernet

Typical Corporate Network

Firewall

Proxy

Server

Network

Ethernet

RCM3305/RCM3315
System

If your system administrator can give you an Ethernet cable along with its IP address, the
netmask and the gateway address, then you may be able to run the sample programs with­out having to setup a direct connection between your computer and the RCM3305/
RCM3315. You will also need the IP address of the nameserver, the name or IP address of
your mail server, and your domain name for some of the sample programs.

52 RabbitCore RCM3305/RCM3315

6.2.1 IP Addresses Explained

IP (Internet Protocol) addresses are expressed as 4 decimal numbers separated by periods,
for example:

216.103.126.155

10.1.1.6

Each decimal number must be between 0 and 255. The total IP address is a 32-bit number
consisting of the 4 bytes expressed as shown above. A local network uses a group of adja-

cent IP addresses. There are always 2N IP addresses in a local network. The netmask (also
called subnet mask) determines how many IP addresses belong to the local network. The
netmask is also a 32-bit address expressed in the same form as the IP address. An example
netmask is:

255.255.255.0

This netmask has 8 zero bits in the least significant portion, and this means that 28
addresses are a part of the local network. Applied to the IP address above
(216.103.126.155), this netmask would indicate that the following IP addresses belong to
the local network:

216.103.126.0

216.103.126.1

216.103.126.2
etc.

216.103.126.254

216.103.126.255

The lowest and highest address are reserved for special purposes. The lowest address
(216.102.126.0) is used to identify the local network. The highest address
(216.102.126.255) is used as a broadcast address. Usually one other address is used for the
address of the gateway out of the network. This leaves 256 - 3 = 253 available IP
addresses for the example given.

User’s Manual 53

6.2.2 How IP Addresses are Used

The actual hardware connection via an Ethernet uses Ethernet adapter addresses (also
called MAC addresses). These are 48-bit addresses and are unique for every Ethernet
adapter manufactured. In order to send a packet to another computer, given the IP address
of the other computer, it is first determined if the packet needs to be sent directly to the
other computer or to the gateway. In either case, there is an Ethernet address on the local
network to which the packet must be sent. A table is maintained to allow the protocol
driver to determine the MAC address corresponding to a particular IP address. If the table
is empty, the MAC address is determined by sending an Ethernet broadcast packet to all
devices on the local network asking the device with the desired IP address to answer with
its MAC address. In this way, the table entry can be filled in. If no device answers, then
the device is nonexistent or inoperative, and the packet cannot be sent.

Some IP address ranges are reserved for use on internal networks, and can be allocated
freely as long as no two internal hosts have the same IP address. These internal IP
addresses are not routed to the Internet, and any internal hosts using one of these reserved
IP addresses cannot communicate on the external Internet without being connected to a
host that has a valid Internet IP address. The host would either translate the data, or it
would act as a proxy.

Each RCM3305/RCM3315 RabbitCore module has its own unique MAC address, which
consists of the prefix 0090C2 followed by a code that is unique to each RCM3305/
RCM3315 module. For example, a MAC address might be 0090C2C002C0.

TIP: You can always obtain the MAC address on your board by running the sample pro-

gram DISPLAY_MAC.C from the SAMPLES\TCPIP folder.

54 RabbitCore RCM3305/RCM3315

6.2.3 Dynamically Assigned Internet Addresses

In many instances, devices on a network do not have fixed IP addresses. This is the case
when, for example, you are assigned an IP address dynamically by your dial-up Internet
service provider (ISP) or when you have a device that provides your IP addresses using
the Dynamic Host Configuration Protocol (DHCP). The RCM3305/RCM3315 modules
can use such IP addresses to send and receive packets on the Internet, but you must take
into account that this IP address may only be valid for the duration of the call or for a
period of time, and could be a private IP address that is not directly accessible to others on
the Internet. These addresses can be used to perform some Internet tasks such as sending
e-mail or browsing the Web, but it is more difficult to participate in conversations that
originate elsewhere on the Internet. If you want to find out this dynamically assigned IP
address, under Windows 98 you can run the

winipcfg program while you are connected

and look at the interface used to connect to the Internet.
Many networks use IP addresses that are assigned using DHCP. When your computer

comes up, and periodically after that, it requests its networking information from a DHCP
server. The DHCP server may try to give you the same address each time, but a fixed IP
address is usually not guaranteed.

If you are not concerned about accessing the RCM3305/RCM3315 from the Internet, you
can place the RCM3305/RCM3315 on the internal network using an IP address assigned
either statically or through DHCP.

User’s Manual 55

6.3 Placing Your Device on the Network

In many corporate settings, users are isolated from the Internet by a firewall and/or a
proxy server. These devices attempt to secure the company from unauthorized network
traffic, and usually work by disallowing traffic that did not originate from inside the net­work. If you want users on the Internet to communicate with your RCM3305/RCM3315,
you have several options. You can either place the RCM3305/RCM3315 directly on the
Internet with a real Internet address or place it behind the firewall. If you place the
RCM3305/RCM3315 behind the firewall, you need to configure the firewall to translate
and forward packets from the Internet to the RCM3305/RCM3315.

56 RabbitCore RCM3305/RCM3315

6.4 Running TCP/IP Sample Programs

We have provided a number of sam ple program s demo nst rating va riou s uses of TCP/IP for
networking embedded systems. These programs require you to connect your PC and the
RCM3305/RCM3315 board together on the same network. This network can be a local pri­vate network (preferred for initial experimentation and debugging), or a connection via the
Internet.

RCM3305/RCM3315

System

User’s PC

Ethernet
crossover
cable

Direct Connection

(network of 2 comp uters)

Ethernet
cables

RCM3305/RCM3315

System

To additional

Hub

network
elements

Direct Connection Using a Hub

User’s Manual 57

6.4.1 How to Set IP Addresses in the Sample Programs

With the introduction of Dynamic C 7.30 we have taken steps to make it easier to run
many of our sample programs. You will see a TCPCONFIG macro. This macro tells
Dynamic C to select your configuration from a list of default configurations. You will
have three choices when you encounter a sample program with the TCPCONFIG macro.

1. You can replace the TCPCONFIG macro with individual MY_IP_ADDRESS, MY_NET-

MASK

, MY_GATEWAY, and MY_NAMESERVER macros in each program.

2. You can leave TCPCONFIG at the usual default of 1, which will set the IP configura tions
to 10.10.6.100, the netmask to 255.255.255.0, and the nameserver and gateway
to 10.10.6.1. If you would like to change the default values, for example, to use an IP
address of 10.1.1.2 for the RCM3305/RCM3315 board, and 10.1.1.1 for your PC,
you can edit the values in the section that directly follows the “General Configuration”
comment in the TCP_CONFIG.LIB library. Yo u will find this library in the LIB\TCPIP
directory.

3. You can create a CUSTOM_CONFIG.LIB library and use a TCPCONFIG value greater
than 100. Instructions for doing this are at the beginning of the TCP_CONFIG.LIB
library in the LIB\TCPIP directory.

There are some other “standard” configurations for TCPCONFIG that let you select differ­ent features such as DHCP. Their values are documented at the top of the TCP_CON-

FIG.LIB

library in the LIB\TCPIP directory. More information is available in the

Dynamic C TCP/IP User’s Manual.

58 RabbitCore RCM3305/RCM3315

6.4.2 How to Set Up your Computer for Direct Connect

Follow these instructions to set up your PC or notebook. Check with your administrator if
you are unable to change the settings as described here since you may need administrator
privileges. The instructions are specifically for Windows 2000, but the interface is similar
for other versions of Windows.

TIP: If you are using a PC that is already on a network, you will disconnect the PC from

that network to run these sample programs. Write down the existing settings before
changing them to facilitate restoring them when you are finished with the sample pro­grams and reconnect your PC to the network.

1. Go to the control panel (Start > Settings > Control Panel), and then double-click the
Network icon.

2. Select the network interface card used for the Ethernet interface you intend to use (e.g.,

TCP/IP Xircom Credit Card Network Adapter) and click on the “Properties” button.

Depending on which version of Windows your PC is running, you may have to select
the “Local Area Connection” first, and then click on the “Properties” button to bring up
the Ethernet interface dialog. Then “Configure” your interface card for a “10Base-T
Half-Duplex” or an “Auto-Negotiation” connection on the “Advanced” tab.

NOTE: Your network interface card will likely have a different name.

3. Now select the IP Address tab, and check Specify an IP Address, or select TCP/IP and
click on “Properties” to assign an IP address to your computer (this will disable “obtain
an IP address automatically”):

IP Address : 10.10.6.101
Netmask : 255.255.255.0
Default gateway : 10.10.6.1

4. Click <OK> or <Close> to exit the various dialog boxes.

RCM3305/RCM3315

IP 10.10.6.101
Netmask

255.255.255.0

System

User’s PC

Ethernet
crossover
cable

Direct Connection PC to RCM3305/RCM3315 Board

User’s Manual 59

6.5 Run the PINGME.C Sample Program

Connect the crossover cable from your computer’s Ethernet port to the RCM3305/
RCM3315 board’s RJ-45 Ethernet connector. Open this sample program from the SAM-

PLES\TCPIP\ICMP

The crossover cable is connected from your computer’s Ethernet adapter to the RCM3305/
RCM3315 board’s RJ-45 Ethernet connector. When the program starts running, the green

LINK light on the RCM3305/RCM3315 module should be on to indicate an Ethernet con-

nection is made. (Note: If the LNK light does not light, you may not be using a crossover
cable, or if you are using a hub perhaps the power is off on the hub.)

The next step is to ping the board from your PC. This can be done by bringing up the MS­DOS window and running the pingme program:

ping 10.10.6.101

or by Start > Run
and typing the entry

ping 10.10.6.101

Notice that the yellow ACT light flashes on the RCM3305/RCM3315 module while the
ping is taking place, and indicates the transfer of data . The ping routine will ping the board
four times and write a summary message on the screen describing the operation.

folder, compile the program, and start it running under Dynamic C.

6.6 Running Additional Sample Programs With Direct Connect

The following sample programs are in the Dynamic C SAMPLES\RCM3300\TCPIP\
folder.

• BROWSELED.C—This program demonstrates a basic controller running a Web page.
Two “device LEDs” are created along with two buttons to toggle them. Users can use
their Web browser to change the status of the lights. The DS3 and DS4 LEDs on the
Prototyping Board will match those on the W eb page. As long as you have not modified
the TCPCONFIG 1 macro in the sample program, enter the following server address in
your Web browser to bring up the Web page served by the sample program.

http://10.10.6.100

Otherwise use the TCP/IP settings you entered in the TCP_CONFIG.LIB library.

• MBOXDEMO.C—The optional LCD/keypad module (see Appendix C) must be plugged
in to the Prototyping Board when using this sample program. This program demon­strates sending e-mail messages that are then shown on the LCD/keypad module dis­play. The keypad is used to scroll through a menu to view the messages, flip to other
messages, mark messages as read, and delete messages. When a new e-mail arrives, an
LED on the LCD/keypad module turns on, and then turns off once the message has
been marked as read. A log of all e-mail actions is kept, and can be displayed in the
Web browser. All current e-mails can also be read with the Web browser.

• PINGLED.C—This program demonstrates ICMP by pinging a remote host. It will flash
LEDs DS3 and DS4 on the Prototyping Board when a ping is sent and received.

60 RabbitCore RCM3305/RCM3315

• SMTP.C—This program demonstrates using the SMTP library to send an e-mail when
the S2 and S3 switches on the Prototyping Board are pressed. LEDs DS3 and DS4 on
the Prototyping Board will light up when e-mail is being sent.

6.6.1 RabbitWeb Sample Programs

You will need to have the Dynamic C RabbitWeb module installed before you run the
sample programs described in this section. The following sample programs are in the
Dynamic C SAMPLES\RCM3300\TCPIP\RABBITWEB folder.

• BLINKLEDS.C—This program demonstrates a basic example to change the rate at
which the DS3 and DS4 LEDs on the Prototyping Board blink.

• DOORMONITOR.C—The optional LCD/keypad module (see Appendix C) must be plugged
in to the Prototyping Board when using this sample program. This program demon­strates adding and monitoring passwords entered via the LCD/keypad module.

• SPRINKLER.C—This program demonstrates how to schedule times for the relay and
digital outputs in a 24-hour period.

6.6.2 Remote Application Update

The following programs that make up the featured application for the RCM3305/
RCM3315 can be found in the SAMPLES\RCM3300\RemoteApplicationUpdate folder.

• DLP_STATIC.C—This program uses the TCP/IP HTTP.LIB library, and outputs a
basic static Web page.

• DLP_WEB.C—This program outlines a basic download program with a Web interface.

Complete information on the use of these programs is provided in the Remote Application
Update instructions, which are available with the online documentation.

6.6.3 Dynamic C FAT File System, RabbitWeb, and SSL Modules

The Dynamic C FAT File System, RabbitWeb, and Secure Sockets Layer (SSL) modules
have been integrated into a sample program for the RCM3305 and the RCM3315. The
sample program requires that you have installed the Dynamic C FAT File System, Rabbit­Web, and SSL modules.

TIP: Before running any of the sample programs described in this section, you should

look at and run sample programs for the TCP/IP
system, RabbitWeb, SSL, the download manager, and HTTP upload to become more
familiar with their operation.

ZSERVER.LIB library, the FAT file

The INTEGRATION.C sample program in the SAMPLES\RCM3300\Module_Integra-

tion

folder demonstrates the use of the TCP/IP ZSERVER.LIB library and FAT file sys­tem functionality with RabbitWeb dynamic HTML content, all secured using SSL. The
sample program also supports dynamic updates of both the application and its resources
using the Rabbit Download Manager (DLM) and HTTP upload capability, respectively—
note that neither of these currently supports SSL security.

User’s Manual 61

First, you need to format and partition the serial flash. Find the FMT_DEVICE.C sample
program in the Dynamic C

SAMPLES\FileSystem folder. Open this sample program

with the File > Open menu, then compile and run it by pressing F9. FMT_DEVICE.C
formats the mass storage device for use with the FAT file system. If the serial flash or
NAND flash is already formatted, FMT_DEVICE.C gives you the option of erasing the
mass storage flash and reformatting it with a single large partition. This erasure does not
check for non-FAT partitions and will destroy all existing partitions.

Next, run the INTEGRATION_FAT_SETUP.C sample program in the Dynamic C

SAMPLES\RCM3300\Module_Integration folder . Ope n this sample program with the
File > Open menu, then compile and run it by pressing F9. INTEGRATION_FAT_

SETUP.C

will copy some #ximported files into the FAT file system.

The last step to complete before you can run the INTEGRATION.C sample program is to
create an SSL certificate. The SSL walkthrough in the online documentation for the
Dynamic C SSL module explains how to do this.

Now you are ready to run the INTEGRATION.C sample program in the Dynamic C

SAMPLES\RCM3300\Module_Integration folder . Ope n this sample program with the

File > Open menu, then compile and run it by pressing F9.

NOTE: Since HTTP upload and the Dynamic C SSL module currently do not work

together, compiling the INTEGRATION.C
warning. Ignore the warning because we are not using HTTP upload over SSL. A
macro (HTTP_UPLOAD_SSL_SUPRESS_WARNING) is available to suppress the
warning message.

sample program will generate a serious

Open a Web browser, and browse to the device using the IP address from the TCP_

CONFIG.LIB

library or the URL you assigned to the device. The humidity monitor will
be displayed in your Web browser. This page is accessible via plain HTTP or over SSL­secured HTTPS. Click on the administrator link to bring up the admin page, which is
secured automatically using SSL with a user name and a password. Use myadmin for user
name and use myadmin for the password.

The admin page demonstrates some RabbitWeb capabilities and provides access to the
HTTP upload page. Click the upload link to bring up the HTTP upload page, which allows
you to choose new files for both the humidity monitor and the admin page. If your browser
prompts you again for your user name and password, they are the same as above.

Note that the upload page is a static page included in the program flash, and can only be
updated by recompiling and downloading the application. This page is protected so that
you cannot accidentally change the upload page, possibly restricting yourself from per­forming future updates.

To try out the update capability, click the upload link on the admin page and choose a sim­ple text file to replace monitor.ztm. Open another browser window and load the main
page. You will see that your text file has replaced the humidity monitor. To restore the
monitor, go back to the other window, click back to go to the upload page again, and
choose HUMIDITY_MONITOR.ZHTML to replace monitor.ztm and click Upload.

62 RabbitCore RCM3305/RCM3315

When you refresh the page in your browser, you will see that the page has been restored.
You have successfully updated and restored your application's files remotely!

When you are finished with the INTEGRATION.C sample program, you need to follow a
special shutdown procedure before powering off to prevent any possible corruption of the
F AT file system. Press and hold switch S2 on the Prototyping Board until LED DS3 blinks
rapidly to indicate that it is now safe to turn the RCM3305/RCM3315 off. This procedure
can be modified by the user to provide other application-specific shutdown tasks.

6.7 Where Do I Go From Here?

NOTE: If you purchased your RCM3305/RCM3315 through a distributor or through a

Rabbit partner, contact the distributor or partner first for technical support.

Additional sample programs are described in the Dynamic C TCP/IP User’s Manual.
Please refer to the Dynamic C TCP/IP User’s Manu al to develop your own applications.

An Introduction to TCP/IP provides background information on TCP/IP, and is available
on the CD and on our Web site.

User’s Manual 63

64 RabbitCore RCM3305/RCM3315

APPENDIX A. RCM3305/RCM3315

SPECIFICATIONS

Appendix A provides the specifications for the RCM3305/
RCM3315, and describes the conformal coating.

User’s Manual 65

A.1 Electrical and Mechanical Characteristics

Figure A-1 shows the mechanical dimensions for the RCM3305/RCM3315.

1.850

(47.0)

1.375

(34.9)

C2C3R3

C1

R2

Y1

C4

R5

C6

C7

R6

RP1

J1

R8

R9

C11

C10

C16

C15

R13

C19

C20

C25

C24

R19

U4

R22

R18

C23

C28

R17

C31
C32
C33

R23

Y2

U5

C34

C43

Q1

R7

C8

C9

U1

C5

C12

C13

C18

C17

C22

C21

R14

R15

U3

C27

R20

C29

C26

JP7

JP8

JP4

JP5

R21

C30

C35

JP6

L1

Please refer to the RCM3305
footprint diagram later in this
appendix for precise header
locations.

(69.2)

2.725

0.100 dia

(2.5)

R1

R10

R11

R12

U2

C14

R16

R45

C81

R60
R61
R62
R63
R64

U13

C58

C61

R44

R53
R54
R31

R30

C82

R82

C80

R81

C70

C86

J2

C76

L3

C90

C72

C42

R50

L2

C77

R79

C71

C79

C78

C74

RCM33XX

DS1

R35

DS2

R36

DS4

R37

DS3

R38

SPEED

(17.5)

0.690

(33.5)

1.320

USR SF LINK ACT

0.47

(11.9)

0.17

(4.3)

0.97

(24.7)

(14)

0.55

1.850

(47.0)

J3J4

(1.6)

0.087

0.063

Figure A-1. RCM3305/RCM3315 Dimensions

(2.2)

(6.2)

0.245

(22)

0.86

NOTE: All measurements are in inc hes fo llowed b y milli meters enclos ed in pa renthe se s.

All dimensions have a manufacturing tolerance of ±0.01" (0.25 mm).

66 RabbitCore RCM3305/RCM3315

It is recommended that you allow for an “exclusion zone” of 0.04" (1 mm) around the
RCM3305/RCM3315 in all directions when the RCM3305/RCM3315 is incorporated into
an assembly that includes other printed circuit boards. An “exclusion zone” of 0.08"
(2 mm) is recommended below the RCM3305/RCM3315 when the RCM3305/RCM3315
is plugged into another assembly. Figure A-2 shows this “exclusion zone.”

2.81

(71.2)

0.6

(16)

2.725

(69.2)

(2)

0.08

Exclusion

1.93

(49.0)

Zone

0.6

(16)

1.850

(47.0)

J3J4

(2)

0.08

Figure A-2. RCM3305/RCM3315 “Exclusion Zone”

NOTE: All measurements are in inches followed by millimeters enclosed in parentheses.

User’s Manual 67

T ableA-1 lists the electrical, mechanical, and environmental specifications for the RCM3305/
RCM3315.

Table A-1. RCM3305/RCM3315 Specifications

Parameter RCM3305 RCM3315

Microprocessor
EMI Reduction Spectrum spreader for reduced EMI (radiated emissions)

Ethernet Port 10/100Base-T, RJ-45, 3 LEDs
SRAM 512K program (fast SRAM) + 512K data
Flash Memory

(program)
Flash Memory

(mass data
storage)

LED Indicators

Backup Battery

49 parallel digital I/0 lines:
General-Purpose
I/O

Additional Inputs Startup mode (2), reset in

Low-EMI Rabbit 3000® at 44.2 MHz

512K

8 Mbytes

(serial flash)

ACT (activity)

LINK (link)

SPEED (on for 100Base-T Ethernet connection)

SF (serial flash)

USR (user-programmable)

Connection for user-supplied backup battery

(to support RTC and data SRAM)

• 43 configurable I/O

• 3 fixed inputs

• 3 fixed ou tputs

4 Mbytes

(serial flash)

Additional
Outputs

External I/O Bus

Can be configured for 8 data lines and

5 address lines (shared with parallel I/O lines), plus I/O read/write

Five 3.3 V, CMOS-compatible ports (shared with I/O)

Status, reset out

• all 5 configurable as asynchronous (with IrDA)

Serial P orts

• 3 configurable as clocked serial (SPI)

• 2 configurable as SDLC/HDLC

• 1 asynchronous serial port dedicated for programming

Serial Rate Maximum asynchronous baud rate = CLK/8

A slave port allows the RCM3305/RCM3315 to be used as an

Slave Interface

Real-Time Clock Yes

Timers

68 RabbitCore RCM3305/RCM3315

intelligent peripheral device slaved to a master processor, which
may either be another Rabbit 3000 or any other type of processor

Ten 8-bit timers (6 cascadable, 3 reserved for internal peripherals),

one 10-bit timer with 2 match registers

Table A-1. RCM3305/RCM3315 Specifications (continued)

Parameter RCM3305 RCM3315

W atchdog/
Supervisor

Pulse-Width
Modulators

Input Capture

Quadrature
Decoder

Power

Operating
Temperature

4 PWM registers with 10-bit free-running counter

and priority interrupts

2-channel input capture can be used to time input signals from
various port pins

2-channel quadrature decoder accepts inputs from external
incremental encoder modules

250 mA @ 44.2 MHz, 3.3 V

-40°C to +70°C (boards manufactured up to May, 2008)
0°C to +70°C (boards manufactured after May, 2008)

Yes

3.15–3.45 V DC

Humidity 5% to 95%, noncondensing

Connectors

Board Size

one 2 × 5 for programming with 1.27 mm pitch

Two 2 × 17, 2 mm pitch

1.850" × 2.725" × 0.86"

(47 mm × 69 mm × 22 mm)

User’s Manual 69

A.1.1 Headers

The RCM3305/RCM3315 uses headers at J3 and J4 for physical connection to other
boards. J3 and J4 are 2 × 17 SMT headers with a 2 mm pin spacing. J1, the programming
port, is a 2 × 5 header with a 1.27 mm pin spacing.

Figure A-3 shows the layout of another board for the RCM3305/RCM3315 to be plugged
into. These values are relative to the mounting hole.

J4

J1

(28.6)

1.125

(34.1)

1.341

1.199

(29.1)

1.147

(30.5)

dia

(2.5)

0.100

J3

(0.5)

0.020 sq typ

(2.0)

0.079

(2.0)

0.079

(7.7)

0.303

(24.2)

0.953

(26.5)

1.043

(28.8)

1.135

(30.6)

1.205

RCM3300 Series
Footprint

(0.25)

0.010

(8.3)

0.328

Figure A-3. User Board Footprint for RCM3305/RCM3315

70 RabbitCore RCM3305/RCM3315

A.2 Bus Loading

You must pay careful attention to bus loading when designing an interface to the
RCM3305/RCM3315. This section provides bus loading information for external devices.

Table A-2 lists the capacitance for the various RCM3305/RCM3315 I/O ports.

Table A-2. Capacitance of Rabbit 3000 I/O Ports

Input

I/O Ports

Parallel Ports A to G 12 14

Capacitance

(pF)

Output

Capacitance

(pF)

Table A-3 lists the external capacitive bus loading for the various RCM3305/RCM3315
output ports. Be sure to add the loads for the devices you are using in your custom system
and verify that they do not exceed the values in Table A-3.

Table A-3. External Capacitive Bus Loading -40°C to +85°C

Output Port

All I/O lines with clock
doubler enabled

Clock Speed

(MHz)

44.2 100

Maximum External

Capacitive Loading (pF)

User’s Manual 71

Figure A-4 shows a typical timing diagram for th e Rabbit 3000 mi croprocessor extern al I/O
read and write cycles.

External I/O Read (one programmed wait state)

T1

Tw

T2

CLK

A[15:0]

/CSx

/IOCSx

/IORD

/BUFEN

D[7:0]

CLK

A[15:0]

valid

T

adr

T

IOCSx

T

T

BUFEN

T

setup

T

CSx

IORD

T

hold

T

CSx

T

IOCSx

T

IORD

T

BUFEN

External I/O Write (one programmed wait state)

T1

T

adr

Tw

valid

T2

valid

/CSx

T

CSx

T

CSx

/IOCSx

T

IOCSx

T

IOCSx

/IOWR

T

IOWR

T

IOWR

/BUFEN

valid

T

BUFEN

T

DVHZ

T

BUFEN

D[7:0]

T

DHZV

Figure A-4. I/O Read and Write Cycles—No Extra Wait States

NOTE: /IOCSx can be programmed to be active low (default) or active high.

72 RabbitCore RCM3305/RCM3315

Table A-4 lists the delays in gross memory access time at 3.3 V.

Table A-4. Data and Clock Delays VIN ±10%, Temp, -40°C–+85°C (maximum)

Clock to Address Output Delay

(ns)

VIN

30 pF 60 pF 90 pF

3.3 V 6 8 11 1 3/4.5 4.5/9

Data Setup
Time Delay

(ns)

Spectrum Spreader Delay

(ns)

Normal

no dbl/dbl

Strong

no dbl/dbl

The measurements are taken at the 50% points under the following conditions.

• T = -40°C to 85°C, V = VDD ±10%

• Internal clock to nonloaded CLK pin delay ≤ 1 ns @ 85°C/3.0 V

The clock to address output delays are similar, and apply to the following delays.

• T

• T

• T

• T

• T

, the clock to address delay

adr

, the clock to memory chip select delay

CSx

, the clock to I/O chip select delay

IOCSx

, the clock to I/O read strobe delay

IORD

, the clock to I/O write strobe delay

IOWR

• T

BUFEN

The data setup time delays are similar for both T

, the clock to I/O buffer enable delay

setup

and T

hold

.

When the spectrum spreader is enabled with the clock doubler, every other clock cycle is
shortened (sometimes lengthened) by a maximum amount given in the table above. The
shortening takes place by shortening the high part of the clock. If the doubler is not
enabled, then every clock is shortened during the low part of the clock period. The maxi­mum shortening for a pair of clocks combined is shown in the table.

Technical Note TN227, Interfacing External I/O with Rabbit 2000/3000 Designs, con­tains suggestions for interfacing I/O devices to the Rabbit 3000 microprocessors.

User’s Manual 73

A.3 Rabbit 3000 DC Characteristics

Table A-5. Rabbit 3000 Absolute Maximum Ratings

Symbol Parameter Maximum Rating

T

Operating T emperatu re -55° to +85°C

A

T

Storage Temperature -65° to +150°C

S

Maximum Input Voltage:

• Oscillator Buffer Input

• 5-V-tolerant I/O

V

Maximum Operating Voltage 3.6 V

DD

VDD + 0.5 V

5.5 V

Stresses beyond those listed in Table A-5 may cause permanent damage. The ratings are
stress ratings only, and functional operation of the Rabbit 3000 chip at these or any other
conditions beyond those indicated in this section is not implied. Exposure to the absolute
maximum rating conditions for extended periods may affect the reliability of the Rabbit
3000 chip.

Table A-6 outlines the DC characteristics for the Rabbit 3000 at 3.3 V over the recom­mended operating temperature range from TA = –55°C to +85°C, VDD = 3.0 V to 3.6 V.

Table A-6. 3.3 Volt DC Characteristics

Symbol Parameter Test Conditions Min Typ Max Units

V

V
V

V

V

I

I

I

Supply Voltage 3.0 3.3 3.6 V

DD

High-Level Input Voltage 2.0 V

IH

Low-Level Input Voltage 0.8 V

IL

High-Level Output Voltage

OH

Low-Level Output Voltage

OL

High-Level Input Current

IH

(absolute w o rs t c as e , all buffers)

Low-Level Input Current

IL

(absolute w o rs t c as e , all buffers)

High-Impedance State
Output Current

OZ

(absolute w o rs t c as e , all buffers)

IOH = 6.8 mA,
V

= VDD (min)

DD

IOL = 6.8 mA,
V

= VDD (min)

DD

VIN = VDD,

= VDD (max)

V

DD

VIN = VSS,
V

= VDD (max)

DD

VIN = VDD or VSS,

= VDD (max), no pull-up

V

DD

0.7 x
V

DD

-10 µA

-10 10 µA

V

0.4 V

10 µA

74 RabbitCore RCM3305/RCM3315

A.4 I/O Buffer Sourcing and Sinking Limit

Unless otherwise specified, the Rabbit I/O buffers are capable of sourcing and sinking

6.8 mA of current per pin at full AC switching speed. Full AC switching assumes a

22.1 MHz CPU clock and capacitive loading on address and data lines of less than 100 pF
per pin. The absolute maximum operating voltage on all I/O is 5.5 V.

Table A-7 shows the AC and DC output drive limits of the parallel I/O buffers when the
Rabbit 3000 is used in the RCM3305/RCM3315.

Table A-7. I/O Buffer Sourcing and Sinking Capability

Output Drive (Full AC Switching)

Pin Name

All data, address, and I/O
lines with clock doubler
enabled

Sourcing/Sinking Limits

(mA)

Sourcing Sinking

6.8 6.8

Under certain conditions, you can exceed the limits outlined in Table A-7. See the Rabbit
3000 Microprocessor User’s Manual for additional information.

User’s Manual 75

A.5 Jumper Configurations

Figure A-5 shows the jumper locations used to configure the various RCM3305/
RCM3315 options. The black square indicates pin 1.

RCM3305/RCM3315

Top Side

JP6

JP7

JP8

JP4

JP5

Bottom Side

JP1
JP2
JP3

R41

R42

R81

Figure A-5. Location of RCM3305/RCM3315 Configurable Positions

76 RabbitCore RCM3305/RCM3315

Table A-8 lists the configuration options.

Table A-8. RCM3305/RCM3315 Jumper Configurations

Header Description Pins Connected

1–2 128K/256K

JP1 Flash Memory Size

JP2 Flash Memory Bank Select

JP3 Data SRAM Size

JP4

JP5

JP6

Ethernet or I/O Output
on Header J3

Ethernet or I/O Output
on Header J3

Ethernet or I/O Output
on Header J3

2–3 512K

1–2 Reserved for future use

2–3 Normal Mode

1–2 128K/256K

2–3 512K

1–2 TPO+

2–3 PD3

1–2 TPO–

2–3 PD2

1–2 ENET_INT

2–3 PE0

Factory

Default

×

×

×

×

×

×

JP7

JP8

Ethernet or I/O Output
on Header J3

Ethernet or I/O Output
on Header J3

NOTE: The jumper connections are made using 0 Ω surface-mounted resistors.

1–2 TPI+

2–3 PD7

1–2 TPI–

2–3 PD6

×

×

User’s Manual 77

A.6 Conformal Coating

The areas around the 32 kHz real-time clock crystal oscillator have had the Dow Corning
silicone-based 1-2620 conformal coating applied. The conformally coated area is shown
in Figure A-6. The conformal coating protects these high-impedance circuits from the
effects of moisture and contaminants over time.

Conformally coated

RCM 3305/RCM3315

R2

R1

R10

R11

R12

U2

C14

R16

R45

C81

R60
R61
R62
R63
R64

U13

Y1

C4

R5

C6

C7

R6

RP1

J1

R8

R9

C10

C15

R13

C19

C25

C23

C31
C32
C33

U5

C74

U1

C11

C16

C20

C24

R19

U4

C29

R22

R18

C28

R17

R23

Y2

C34

C43

C58

C61

R44

R53
R54
R31

R30

C82

R82

C80

C70

C76

C72

L2

C77

R79

C71

C79

C78

C2C3R3

C1

R7

C5

R20

R21

C30

R81

C86

L3

C42

RCM33XX

Q1

C8

C9

C12

C13

C18

C17

C22

C21

R14

R15

U3

C27

C26

JP7

JP8

JP4

JP5

C35

JP6

L1

J2

C90

R50

DS1

R35

DS2

R36

DS4

R37

DS3

R38

USR SF LINK ACT

SPEED

areas

Figure A-6. RCM3305/RCM3315 Areas Receiving Conformal Coating

Any components in the conformally coated area may be replaced using standard soldering
procedures for surface-mounted components. A new conformal coating should then be
applied to offer continuing protection against the effects of moisture and contaminants.

NOTE: For more information on conformal coatings, refer to Technical Note 303,

Conformal Coatings.

78 RabbitCore RCM3305/RCM3315

APPENDIX B. PROTOTYPING BOARD

Appendix B describes the features and accessories of the Proto­typing Board.

User’s Manual 79

B.1 Introduction

The Prototyping Board included in the Development Kit makes it easy to connect an
RCM3305/RCM3315 module to a power supply and a PC workstation for development. It
also provides some basic I/O peripherals (RS-232, RS-485, a relay, LEDs, and switches),
as well as a prototyping area for more advanced hardware development.

For the most basic level of evaluation and development, the Prototyping Board can be
used without modification.

As you progress to more sophisticated experimentation and hardware development, modi­fications and additions can be made to the board without modifying or damaging the
RCM3305/RCM3315 module itself.

The Prototyping Board is shown below in Figure B-1, with its main features identified.

Power

Module

Extension Header

Voltage

Regulators

RCM3300/RCM3310

Module

Connectors

Module

Extension Header

GND

GND

VBT

/RES

SM0

/IOWR

PG5

PG7

PE1

PE4

PE6

PF7

PF5

PB7

PB5

PB3

PB0

RCM3300
PROTOTYPING
BOARD

ACT

PD7

PD3

PD5

PG3

PG1

PC7

PC5

PC3

PC1

PF0

PF2

PA0

PA2

PA4

PA6

STAT

RESET

Reset

Switch

Input

J8

NC

+3.3 V

VRAM

SMODE1

/IORD

PG4

L1

PG6

R11

PE0

PE3

PE5

R12

PF4 PF6 PE7

PB6

PB4

PB2

/RES_OUT

LINK

PD6

PD2

PD4

PG2

PG0

PC6

PC4

PC2

PC0

PF1

PF3

PA1

PA3

PA5

PA7

GND

J9

S1

Switches

D2

R67
R68
R69
R70

R25

User

H-Bridge

LED

+DC

GND

D1

C11

C12

JP4

R22

Q2Q3Q4

R28

S3

R1

J2

C2

U1

OUT

U8

R23

R50

Q6

R49

CORE

Core
LED

Motor Driver

Terminals

{

POWER

DS1

J3

L293D
H-DRIVER

R13

J10

00 01 02 03 04 05 06 07

RP2

RP1

C13

U5

R16

C16

R24

JB

GND

HO4

HO3

HO2

J12

D4

D5D6D7

R30

R31

R29

DS2

DS5 DS6

DS4

DS3

User

LEDs

VMA+ MDA1 MDA2 MDA3 MDA4 VMA

JP1

C3

U2

C4

OUT

R17

R15

CX1

UX1

SO20W

SMT Prototyping

CX2

Area

UX2

SO20W

J13

U9

C21

C22

HO1

C23

C24

J14

R32

TxE RxE GND TxF RxF 485+ GND 485

{

RS-232
Signals

+5 V

+3.3 V

{

Power

+DC

GND

J1

GND

C1

C10

C9

C8

U4

CORE MODULE

GND/EGND

R21

Q1

JA

R27

R26

S2

JP2

U3
L293D
H-DRIVER

R14

C5

BT1

GND

RX13

RX14

RX15

DX1

DX2

C18

C17

R33

R34

R36

JP5

C26

C25

RS-485

Quadrature

Decoder

Terminals

VMB MDB1 MDB2 MDB3 MDB4 VMB+

J5

J4

PF0_CLKD

PF0_QD

Prototyping Area

RX16

RX17

RX18

UX4

SOT23-6

UX5

SOT23-6

U10

R35

R37

R38

{

{

+5V QD2A QD2 B QD1A QD1B GND

R52 R53

R51

R54

JP3

R55

R56

R57

R58

Through-Hole

LCD

/CS

J15

R39

+V

/RES

LED0

LED2

LCD1JA

/CS

LED1

LED3

+BKLT

C19

R40

U11

KEYPAD DISPLAY BOARD

LCD1JB

Digital
Inputs

{

R60 R61

U7

R59

R62

R63

R64

R65

R66

+5 V

GND

+3.3 V

BA0

BA1

BA2

BA3

BD0

BD1

BD2

BD3

LED4

LED6

GNDA3A1D0D2D4D6

A2

A0

D1D3D5

GND

GND

LED5

R42

C20

R41

K1

U12

D8

LCD1JC

LCD/Keypad

Module

Connections

RabbitNet

Port

GND IN3 IN2 IN1 IN0 +5V

J6

C7

R2

R3R4R5

R6

C6

R8

U6

R9

R10

C14

BD4

BD5

BD6

BD7

J16

D7

C27

C28

R43

C30C29

R45

Q5

R48

R7

C15

R18

R44

R46

R47

J7

RABBITNET

J11

SERIAL FLASH/

MODEM

R19

R20

0.5 A @ 30 V

RELAY RATED

J17

NO1 COM1 NC1 NO2 COM2 NC2

DS7

RELAY

Serial Flash

Socket

+5 V, 3.3 V, and

GND Buses

{

Relay

Terminals

Relay User

LED

Figure B-1. Prototyping Board

80 RabbitCore RCM3305/RCM3315

B.1.1 Prototyping Board Features

• Power Connection—A power-supply jack and a 3-pin header are provided for con­nection to the power supply. Note that the 3-pin header is symmetrical, with both outer
pins connected to ground and the center pin connected to the raw V+ input. The cable
of the AC adapter provided with the North American version of the Development Kit
ends in a plug that connects to the power-supply jack (J1). A header plug leading to
bare leads is provided for overseas customers to connect their power supply to the 3-pin
header (J2)—the center pin of J2 is always connected to the positive terminal, and
either edge pin is negative.

Users providing their own power supply should ensure that it delivers 8–30 V DC at 1 A.

• Regulated Power Supply—The raw DC voltage provided at the POWER IN jack is
routed to a 5 V switching voltage regulator, then to a separate 3.3 V linear regulator.
The regulators provide stable power to the RCM3305/RCM3315 module and the Proto­typing Board. The voltage regulators will get warm while in use.

• Power LED—The power LED lights whenever power is connected to the Prototyping
Board.

• Core LED—The core LED lights whenever an RCM3305/RCM3315 module is
plugged in correctly on the Prototyping Board and the RCM3305/RCM3315 module is
not being reset.

• Relay LED—The relay LED lights whenever the Prototyping Board relay is energized.

• Reset Switch—A momentary-contact, normally open switch is connected directly to the

RCM3305/RCM3315’s /RESET_IN pin. Pressing the switch forces a hardware reset of
the system.

• I/O Switches and LEDs—Two momentary-contact, normally open switches are con­nected to the PG0 and PG1 pins of the RCM3305/RCM3315 module and may be read
as inputs by sample applications.

Four user LEDs (DS3–DS6) are connected to alternate I/O bus pins PA0–PA3 pins of
the RCM3305/RCM3315 module via U8, and may be driven as output indicators. PE7
and PG5 control the registers in U8 as shown in the sample applications.

• Prototyping Area—A generous prototyping area has been provided for the installation
of through-hole components. +3.3 V, +5 V, and Ground buses run along one edge of
this area. Several areas for surface-mount devices are also available. Each SMT pad is
connected to a hole designed to accept a 30 AWG solid wire.

• LCD/Keypad Module—Rabbit’s LCD/keypad module may be plugged in directly to

headers LCD1JA, LCD1JB, and LCD1JC. The signals on headers LCD1JB and
LCD1JC will be available only if the LCD/keypad module is plugged in to header
LCD1JA. Appendix C provides complete information for mounting and using the
LCD/keypad module.

User’s Manual 81

• Module Extension Headers—The complete pin set of the RCM3305/RCM3315
module is duplicated at headers J8 and J9. Developers can solder wires directly into the
appropriate holes, or, for more flexible development, 2 × 17 header strips with a 0.1"
pitch can be soldered into place. See Figure B-4 for the header pinouts.

• Digital I/O—Four digital inputs are available on screw-terminal header J6. See

Figure B-4 for the header pinouts.

• RS-232—Two 3-wire serial ports or one 5-wire RS-232 serial port are available on the
Prototyping Board at screw-terminal header J14.

• RS-485—One RS-485 serial port is available on the Prototyping Board at screw-termi­nal header J14.

• Quadrature Decoder—Four quadrature decoder inputs (PF0–PF3) from the Rabbit
3000 chip are available on screw-terminal header J5. See Figure B-4 for the header
pinouts.

• H-Bridge Motor Driver—Two pairs of H-bridge motor drivers are supported using
screw-terminal headers J3 and J4 on the Prototyping Board for stepper-motor control.
See Figure B-4 for the header pinouts.

• RabbitNet Port—One RS-422 RabbitNet port (shared with the serial flash interface) is
available to allow RabbitNet peripheral cards to be used with the Prototyping Board.

• Serial Flash Interface—One serial flash interface (shared with the RabbitNet port) is

available to allow Rabbit’s SF1000 series serial flash to be used on the Prototyping
Board.

82 RabbitCore RCM3305/RCM3315

B.2 Mechanical Dimensions and Layout

Figure B-2 shows the mechanical dimensions and layout for the Prototyping Board.

J8

GND

GND

VBT

/RES

SM0

/IOWR

PG5

PG7

PE1

PE4

PE6

PF7

PF5

PB7

PB5

PB3

PB0

RCM3300
PROTOTYPING
BOARD

ACT

PD7

PD3

PD5

PG3

PG1

PC7

PC5

PC3

PC1

PF0

PF2

PA0

PA2

PA4

PA6

STAT

J9

S1

RESET

NC

+3.3 V

VRAM

SMODE1

/IORD

PG4

PG6

PE0

PE3

PE5

R12

PF4 PF6 PE7

PB6

PB4

PB2

/RES_OUT

LINK

PD6

PD2

PD4

PG2

PG0

PC6

PC4

PC2

PC0

PF1

PF3

PA1

PA3

PA5

PA7

GND

J1

GND

C10

+DC

GND

R1
J2

D1

C2

U1

C11

OUT

C12

JP4

POWER

DS1

J3

L293D
H-DRIVER

J10

00 01 02 03 04 05 06 07

RP2

RP1

C13

U5

+DC

GND

C1

D2

L1

R11

C9

R67

C8

R68

U4

R69
R70

R16

CORE MODULE

GND/EGND

VMA+ MDA1 MDA2 MDA3 MDA4 VMA

JP1

C3

U2

C4

R13

OUT

Battery

R17

R15

+5 V

+3.3 V

CX1

UX1

SO20W

U8

C16

R24

R23

R21

R22

Q1

Q2Q3Q4

JA

R28

R27

R25

R26

S3

S2

JB

GND

HO4

J12

R50

D4

D5D6D7

Q6

R49

R30

R29

CORE

DS2

DS4

DS3

CX2

J13

HO3

HO2

HO1

J14

R31

R32

DS5 DS6

TxE RxE GND TxF RxF 485+ GND 485

C23

C21

UX2

SO20W

C24

U9

C22

JP2

L293D
H-DRIVER

R14

RX13

RX14

RX15

C25

VMB MDB1 MDB2 MDB3 MDB4 VMB+

J5

J4

PF0_QD

R51

JP3

PF0_CLKD

U3

R52 R53

R55

+5V QD2A QD2B QD1A QD1B GND

R60 R61

R54

R59

R56

R57

R58

R63

R64

R65

R66

C5

BT1

GND

RX16

RX17

RX18

UX4

DX1

UX5

DX2

C18

C17

R33

R34

U10

R35

R36

JP5

R38

C26

SOT23-6

SOT23-6

R37

LCD1JA

LCD

J15

R39

+V

/RES

LED0

LED2

/CS

LED1

LED3

+BKLT

C19

R40

U11

KEYPAD DISPLAY BOARD

/CS

BA0

BA1

LED4

LED6

GND

LED5

R41

U12

BA2

GNDA3A1D0D2D4D6

GND

C20

D8

LCD1JB

GND IN3 IN2 IN1 IN0 +5V

J6

U7

R62

C7

R2

C6

R8

U6

R9

+5 V

GND

+3.3 V

BA3

BD0

BD1

BD2

BD3

BD4

BD5

BD6

A2

A0

D1D3D5

D7

R42

K1

R43

R45

LCD1JC

BD7

R3R4R5

J16

C27

J7

RABBITNET

R7

R6

R10

J11

C14

C15

SERIAL FLASH/

MODEM

R19

R20

R18

5.25

(133)

0.5 A @ 30 V

RELAY RATED

J17

C28

R44

C30C29

R46

NO1 COM1 NC1 NO2 COM2 NC2

Q5

DS7

R47

RELAY

R48

6.75

(171)

Figure B-2. Prototyping Board Dimensions

NOTE: All measurements are in inches followed by millimeters enclosed in parentheses.

User’s Manual 83

Table B-1 lists the electrical, mechanical, and environmental specifications for the Proto­typing Board.

Table B-1. Prototyping Board Specifications

Parameter Specification

Board Size 5.25" × 6.75" × 1.00" (133 mm × 171 mm × 25 mm)
Operating T emperatu re –20°C to +70°C
Humidity 5% to 95%, noncondensing
Input Voltage 8 V to 30 V DC
Maximum Current Draw

(including user-added circuits)
Backup Battery CR2032, 3 V lithium coin-type

Digital Inputs

Digital Outputs

Relay SPDT relay, 500 mA @ 30 V

Serial P orts

800 mA max. for +3.3 V supply,
1 A total +3.3 V and +5 V combined

4 inputs pulled up, ± 36 V DC,

switching threshold 0.9–2.3 V typical

4 sinking outputs,+30 V DC, 500 mA maximum per channel

8 CMOS-level outputs if stepper motor not installed

• two 3-wire RS-232 or one RS-232 with RTS/CTS

• one RS-485

Other Serial Interfaces RabbitNet RS-422 port or serial flash interface

• stepper motor control

Other Interfaces

• quadrature decoder

• LCD/keyp ad module

Seven LEDs

• one power on indicator

LEDs

• one RCM3305/RCM3315 module indicator

• four user-configurable LEDs

• one relay indicator

Prototyping Area

Throughhole, 0.1" spacing, additional space for SMT
components

• two 2 × 17, 2 mm pitch sockets for RCM3305/RCM3315

module

• one 2 × 5, 2 mm pitch socket for serial flash

Connectors

• six screw-terminal headers for serial ports, digital inputs,

stepper motor control, quadrature decoder, and relay
contacts

• one RJ-45 RabbitNet jack

Standoffs/Spacers 7, accept 4-40 x 1/2 screws

84 RabbitCore RCM3305/RCM3315

B.3 Power Supply

The RCM3305/RCM3315 requires a regulated 3.15 V to 3.45 V DC power source to oper­ate. Depending on the amount of current required by the application, different regulators
can be used to supply this voltage.

The Prototyping Board has an onboard +5 V switching power regulator from which a
+3.3 V linear regulator draws its supply. Thus both +5 V and +3.3 V are available on the
Prototyping Board.

The Prototyping Board itself is protected against reverse polarity by a diode at D1 as
shown in Figure B-3.

LINEAR POWER

J4

1

2

IN

3

POWER

D1

DL4003

DCIN

SWITCHING POWER REGULATOR

C1

47 µF

U1

LM2575

330 µH

L1
D2
1N5819

+5 V

330 µF

REGULATOR

LM1117

3

10 µF

U4

+3.3 V

2

1

10 µF

Figure B-3. Prototyping Board Power Supply

User’s Manual 85

B.4 Using the Prototyping Board

The Prototyping Board is actually both a demonstration board and a prototyping board. As
a demonstration board, it can be used with the sample programs to demonstrate the func­tionality of the

The Prototyping Board pinouts are shown in Figure B-4.

RCM3305/RCM3315

right out of the box without any modifications.

GND
GND

/RES

SMODE0

/IOWR

STATUS

J5

Quadrature

Decoder

GND

QD1B

QD1A

QD2B

QD2A

Stepper-Motor

Control

Power

J1

GND

J2

J8

n.c.
+3.3 V

VBT

VRAM
SMODE1
/IORD
PG4

PG5

PG6

PG7

PE0

PE1

PE3

PE4

PE5

PE6

PE7

PF7

PF6

PF5

PF4

PB7

PB6

PB5

PB4

PB3

PB2

PB0

/RES_OUT

J9

ACT

LINK

PD7

PD6

PD3

PD2

PD5

PD4

PG3

PG2

PG1

PG0

PC7

PC6

PC5

PC4

PC3

PC2

PC1

PC0

PF0

PF1

PF2

PF3
PA1

PA0

PA3

PA2

PA5

PA4

PA7

PA6

GND

+DC

GND

Digital
Outputs
(sinking)

DS1

J3

J10

OUT00

VMA

OUT01

GND

MDA4

OUT02

J12

HOUT4

OUT03

HOUT3

MDA3

OUT04

HOUT2

MDA2

OUT05

HOUT1

OUT06

MDA1

OUT07

VMA+

J13

VMB+

MDB4

MDB3

MDB2

MDB1

VMB

J4

PB0
PC5
PC4

J14

+5 v

J15

+5 V

J6

LCD_/CS

BA0

Digital
Inputs

IN0

IN1

IN2

IN3

GND

J7

J11

GND

PC1_RxD

VCC

PC0_TxD

PD2_CE

PD4_DCD

BA1

BA2

BA3

BD0

BD1

BD2

BD3

BD4

BD5

BD6

BD7

PF0_CLK_RES
PD3_RNET_/RTS
PD6_/CTRL
PD5_/CTS

J16

J17

NC2

COM2

NO2

RELAY

CONTACTS

NC1

COM1

NO1

DS7

RELAY

LED

DS2 DS3 DS4 DS5 DS6

User

Core

LEDs

LED

TxF

TxE

RxF

RxE

GND

RS-232 RS-485

485+

GND

485

Figure B-4. Prototyping Board Pinout

86 RabbitCore RCM3305/RCM3315

The Prototyping Board comes with the basic components necessary to demonstrate the
operation of the RCM3305/RCM3315. Four user LEDs (DS3–DS6) are connected to
alternate I/O bus pins P A0–PA3 pins of the RCM3305/RCM3315 module via U8, and may
be driven as output indicators when controlled by PE7 and PG5 as shown in the sample
applications. Two switches (S2 and S3) are connected to PG0 and PG1 to demonstrate the
interface to the Rabbit 3000 microprocessor. Reset switch S1 is the hardware reset for the
RCM3305/RCM3315.

The

Prototyping Board provides the user with RCM3305/RCM3315 connection points
brought out conveniently to labeled points at J8 and J9 on the Prototyping Board. A lthough
locations J8 and J9 are unstuffed, 2 × 17 headers are included in the bag of parts.

RS-232 and RS-485 signals are available on screw-terminal header J14, quadrature decoder
inputs are available on screw-terminal header J5, and digital inputs are available on screw­terminal header J6. A 1 × 5 header strip from the bag of parts may be installed at J12 for four
sinking digital outputs

. The clocked Serial Port B signals from the RCM3305/RCM3315
are used for the serial flash, and cannot be accessed via header J13 on the Prototyping
Board

.

If you don’t plan to use the LCD/keypad module, additional signals may be brought out on 1 × 5
and 1 × 8 headers from the bag of parts that you install at J15 and J16. If you don’t plan to use
the stepper-motor control option, additional CMOS outputs are available via a 1 × 8 header
that you install at J10.

There is a through-hole prototyping space available on the Prototyping Board.
the prototyping area are spaced at 0.1" (2.5 mm).
one edges of the

prototyping area. Small to medium circuits can be prototyped using point-

+3.3 V, +5 V, and GND traces run along

to-point wiring with 20 to 30 A WG wire between the prototyping area, the
GND traces,

and the surrounding area where surface-mount components may be installed.

The holes in

+3.3 V, +5 V , and

Small holes are provided around the surface-mounted components that may be installed
around the prototyping area.

B.4.1 Adding Other Components

There are two sets of pads for 6-pin, 16-pin, and 28-pin devices that can be used for sur­face-mount prototyping devices. There are also pads that can be used for SMT resistors
and capacitors in an 0805 SMT package. Each component has every one of its pin pads
connected to a hole in which a 30 A WG wire can be soldered (standard wire wrap wire can
be soldered in for point-to-point wiring on the Prototyping Board). Because the traces are
very thin, carefully determine which set of holes is connected to which surface-mount pad.

User’s Manual 87

B.4.2 Digital I/O

B.4.2.1 Digital Inputs

The Prototyping Board has four digital inputs, IN0–IN3, each of which is protected over a
range of –36 V to +36 V. The inputs are pulled up to +3.3 V as shown in Figure B-5.

JP6

+3.3 V

27 kW

®

22 kW

GND

Figure B-5. Prototyping Board Digital Inputs

The four quadrature decoder inputs on screw-terminal header J5 may be used as inputs
IN4–IN7. To use the PF0 signal from the Rabbit microprocessor, which goes to QD1B,
remember to reconfigure the jumper on header JP3 to jumper pins 1–2.

The actual switching threshold is between 0.9 V and 2.3 V. Anything below this value is a
logic 0, and anything above is a logic 1.

The digital inputs are each fully protected over a range of -36 V to +36 V, and can handle
short spikes of ±40 V.

88 RabbitCore RCM3305/RCM3315

B.4.3 CMOS Digital Outputs

If the stepper-motor option is not used, eight CMOS-level digital outputs are available at
J10, and can each handle up to 25 mA.

B.4.4 Sinking Digital Outputs

Four sinking digital outputs sh ared with LEDs DS3–DS6 are available at J12, and can each
handle up to 500 mA. Figure B-6 shows a wiring diagram for a typical sinking output.

Vcc

330 W

1 kW

ADD DIODE

WHEN LOAD

IS INDUCTIVE

Figure B-6. Prototyping Board Sinking Digital Outputs

B.4.5 Relay Outputs

Figure B-7 shows the contact connections for the relay on the Prototyping Board. A diode
across the coil provides a return path for inductive spikes, and snubbers across the relay
contacts protect the relay contacts from inductive spikes.

2

1

3

456

J17

47 W

47 W

47 W

47 W

100 nF

100 nF
100 nF

100 nF

®

+3.3 V

COM1

1

10

8

7

NO1

9

NC1

COM2

3

4

NO2

2

NC2

Figure B-7. Prototyping Board Relay Output Contact Connections

The relay is driven by pin PA4 of the RCM3305/RCM3315 module via U8, and is con­trolled by PE7 and PG5 as shown in the sample applications.

User’s Manual 89

B.4.6 Serial Communication

The Prototyping Board allows you to access four of the serial ports from the RCM3305/
RCM3315 module. Table B-2 summarizes the configuration options.

Table B-2. Prototyping Board Serial Port Configurations

Serial Port Signal Header Configured via Default Use Alternate Use

C J14

J7

D

J11

E J14
F J14

* RS-485 termination and bias resis tors are configured via header JP5.

JP5

JP3

—
—

*

RS-485

RabbitNet

(PD2 = 1)

SF1000

(PD2 = 0)

RS-232
RS-232

—

Rabbit 3000

quadrature decoder

—
—

Serial Port D is configured in softwa re e ither to allow J7 to be used a s a RabbitNe t port or
to allow J11 to be used as a serial interface for the SF1000 series serial flash.

90 RabbitCore RCM3305/RCM3315

B.4.6.1 RS-232

RS-232 serial communication on the Prototyping Board is supported by an RS-232 trans­ceiver installed at U9. This transceiver provides the voltage output, slew rate, and input
voltage immunity required to meet the RS-232 serial communication protocol. Basically,
the chip translates the Rabbit 3000’s signals to RS-232 signal levels. Note that the polarity
is reversed in an RS-232 circ uit so that a +5 V output becomes approximately -10 V and 0
V is output as +10 V. The RS-232 transceiver also provides the proper line loading for
reliable communication.

RS-232 can be used effectively at the RCM3305/RCM3315 module’s maximum baud rate
for distances of up to 15 m.

RS-232 flow control on an RS-232 port is initiated in software using the

serXflowcontrolOn() function call from

LIB\

RS232.LIB, where X is the serial port

(E or F). The locations of the flow control lines are specified using a set of five macros.

SERX_RTS_PORT—Data register for the parallel port that the RTS line is on (e.g., PGDR).
SERX_RTS_SHADOW—Shadow register for the RTS line's parallel port (e.g., PGDRShadow).
SERX_RTS_BIT—The bit number for the RTS line.
SERX_CTS_PORT—Data register for the parallel port that the CTS line is on (e.g., PCDRShadow).
SERX_CTS_BIT—The bit number for the CTS line.

Standard 3-wire RS-232 communication using Serial Ports E and F i s il lustrated in the fol­lowing sample code.

#define EINBUFSIZE 15 // set size of circular buffers in bytes
#define EOUTBUFSIZE 15

#define FINBUFSIZE 15
#define FOUTBUFSIZE 15

#define MYBAUD 115200 // set baud rate
#endif

main(){
serEopen(_MYBAUD); // open Serial Ports E and F
serFopen(_MYBAUD);
serEwrFlush(); // flush their input and transmit buffers
serErdFlush();
serFwrFlush();
serFrdFlush();
serEclose(_MYBAUD); // close Serial Ports C and D
serFclose(_MYBAUD);
}

User’s Manual 91

B.4.6.2 RS-485

The Prototyping Board has one RS-485 serial channel, which is connected to the Rabbit
3000 Serial Port C through an RS-485 transceiver. The half-duplex communication uses
an output from PD7 on the Rabbit 3000 to control the transmit enable on the communica­tion line. Using this scheme a strict master/slave relationship must exist between devices
to insure that no two devices attempt to drive the bus simultaneously.

Serial Port C is configured in software for RS-485 as follows.

#define ser485open serCopen
#define ser485close serCclose
#define ser485wrFlush serCwrFlush
#define ser485rdFlush serCrdFlush
#define ser485putc serCputc
#define ser485getc serCgetc

#define CINBUFSIZE 15
#define COUTBUFSIZE 15

#ifndef _485BAUD
#define _485BAUD 115200
#endif

The configuration shown above is based on circular buffers. RS-485 configuration may
also be done using functions from the PACKET.LIB library.

The Prototyping Boards with RCM3305/RCM3315 modules installed can be used in an
RS-485 multidrop network spanning up to 1200 m (4000 ft), and there can be as many as
32 attached devices. Connect the 485+ to 485+ and 485– to 485– using single twisted-pair
wires as shown in Figure B-8. Note that a common ground is recommended.

RS485+

RS-485

GND

RS-485

Figure B-8. Multidrop Network

GND

RS485+

RS485+

RS-485

GND

92 RabbitCore RCM3305/RCM3315

The Prototyping Board comes with a 220 Ω termination resistor and two 681 Ω bias resis­tors installed and enabled with jumpers across pins 1–2 and 5–6 on header JP5, as shown
in Figure B-9.

J8

GND

NC

GND

+3.3 V

VBT

VRAM

/RES

SMODE1

SM0

/IORD

/IOWR

PG4

PG5

PG6

PG7

PE0

PE1

PE3

PE4

PE5

PE6

PF7

PF5

PB7

PB6

PB5

PB4

PB3

PB2

PB0

/RES_OUT

RCM3300
PROTOTYPING
BOARD

LINK

ACT

PD6

PD7

PD2

PD3

PD4

PD5

PG2

PG3

PG0

PG1

PC6

PC7

PC4

PC5

PC2

PC3

PC0

PC1

PF1

PF0

PF3

PF2

PA1

PA0

PA3

PA2

PA5

PA4

PA7

PA6

GND

STAT

J9

S1

RESET

R11

R12

PF4 PF6 PE7

J1

GND

+DC

C1

C10

C11

C42

C90

L3

R81

CORE MODULE

JP6

C35

C30

R21

C26

R20

R21

C5

C9

C8

R7

Q1

Q2Q3Q4

C2C3R3

R27

S3

POWER

GND

DS1

R1
J2

J3

D1

C2

U1

J10

00 01 02 03 04 05 06 07

OUT

C12

JP4

RCM33XX

C79

C71

C77

R79

L2

C72

C76

C86

C70

C80

R82

C82

R30

R31
R54

R53

R44

C61

C58

C43

C34

Y2

R23

R18

R22

C29

U4

R19

U8

C16

R23

R22

U1

R6

R5

Y1

R2

C1

J12

R28

R50

Q6

R49

CORE

DS2

R17

R24

C7

C28

C6

C4

D4

RP1

C13

U5

C78

R16

U5

C24

C25

C20

C16

C11

GND

R29

DS3

L293D
H-DRIVER

RP2

C74

C33
C32
C31

C23

C19

R13

C15

C10

R9

R8

J1

RP1

JB

HO4

HO3

D5D6D7

R30

DS4

+DC

GND

D2

L1

C9

R67

C8

R68

U4

R69
R70

SPEED

USR SF LINK ACT

R38

DS3

R37

R50

DS4

R36

DS2

R35

DS1

J2

GND/EGND

L1

JP7

JP8

JP4

JP5

C27

U3

R15

R14

C21

C22

C17

C18

C12

C13

Q1

JA

R25

R26

S2

VMA+ MDA1 MDA2 MDA3 MDA4 VMA

JP1

C3

U2

C4

R13

OUT

R17

U13

R15

R64
R63
R62
R61
R60

C81

R45

CX1

R16

UX1

SO20W

C14

U2

R12

R11

CX2

R10

UX2

SO20W

R1

J13

C21

HO2

R31

DS5 DS6

C22

HO1

C23

C24

J14

R32

TxE RxE GND TxF RxF 485+ GND 485

Factory

+5 V

+3.3 V

U9

JP5

Default

JP2

L293D
H-DRIVER

R14

RX13

RX14

RX15

R33

C25

VMB MDB1 MDB2 MDB3 MDB4 VMB+

J5

J4

PF0_QD

5

SOT23-6

SOT23-6

R37

JP3

R51

LCD1JA

PF0_CLKD

U3

C5

BT1

GND

RX16

RX17

RX18

UX4

DX1

UX5

DX2

C18

C17

R34

U10

R35

R36

JP5

R38

C26

6

4

2

3

1

R52 R53

R55

R56

U10

LCD1JB

R57

R58

+V

+BKLT

R40

+5V QD2A QD2B QD1A QD1B GND

R60 R61

R54

R59

R63

LCD

/CS

BA0

J15

R39

/RES

LED0

LED2

LED4

LED6

485+

/CS

LED1

LED3

LED5

C19

6

R41

U11

7

KEYPAD DISPLAY BOARD

485

R64

R65

R66

+3.3 V

BA1

BA2

GNDA3A1D0D2D4D6

GND

GND

R42

C20

U12

D8

GND IN3 IN2 IN1 IN0 +5V

J6

U7

R62

C7

R2

C6

R8

U6

R9

+5 V

GND

BA3

BD0

BD1

BD2

BD3

BD4

BD5

BD6

D1D3D5

K1

D7

1

5

bias

termi-

R43

nation

JP5

A2

A0

2

6

bias

R45

LCD1JC

R3R4R5

BD7

J16

+3.3 V

C27

Q5

R6

R10

C14

R36
681 W

R38

C28

220 W

R37
681 W

C30C29

R48

RABBITNET

R7

C15

R18

R44

R46

R47

J7

J11

SERIAL FLASH/

MODEM

R19

R20

0.5 A @ 30 V

RELAY RATED

J17

NO1 COM1 NC1 NO2 COM2 NC2

DS7

RELAY

Figure B-9. RS-485 Termination and Bias Resistors

For best performance, the termination resistors in a multidrop network should be enabled
only on the end nodes of the network, but not on the intervening nodes. Jumpers on boards
whose termination resistors are not enabled may be stored across pins 1–3 and 4–6 of
header JP5.

B.4.7 RabbitNet Ports

The RJ-45 jack labeled RabbitNet is a clocked SPI RS-422 serial I/O expansion port for
use with RabbitNet peripheral boards. The RabbitNet jack does not support Ethernet con­nections. Header JP3 must have pins 2–3 jumpered when using the RabbitNet port.

The RabbitNet port is enabled in software by setting PD2 = 1. Note that the RabbitNet
port and the J11 interface cannot be used simultaneously.

User’s Manual 93

B.4.8 Other Prototyping Board Modules

An optional LCD/keypad module is available that can be mounted on the Prototyping
Board. The signals on headers LCD1JB and LCD1JC will be available only if the LCD/
keypad module is installed. Refer to Appendix C, “LCD/Keypad Module,” for complete
information.

Rabbit’s SF1000 series serial flash may be installed in the socket labeled J11. The J11
interface is enabled in software by setting PD2 = 0. Header JP3 must have pins 2–3 jum­pered when using the J11 interface. Note that the RabbitNet port and the J11 interface
cannot be used simultaneously.

B.4.9 Quadrature Decoder

Four quadrature decoder inputs are available on screw-terminal header J5. To use the PF0
input from the Rabbit microprocessor, which goes to the QD1B input, remember to recon­figure the jumper on header JP3 to jumper pins 1–2.

Additional information on the use of the quadrature decoders on Parallel Port F is pro­vided in the Rabbit 3000 Microprocessor User’s Manual.

B.4.10 Stepper-Motor Control

The Prototyping Board can be used to demonstrate the use of the RCM3305/RCM3315 to
control a stepper motor. Stepper motor control typically directs moves in two orthogonal
directions, and so two sets of stepper-motor control circuits are provided for via screw­terminal headers J3 and J4.

In order to use the stepper-motor control, install two Texas Instruments L293DN chips at
locations U2 and U3 (shown in Figure B-10). These chips are readily available from your
favorite electronics parts source, and may be purchased through Rabbit’ s Web store as part
number 660-0205.

GND

D

C

J1

N

D

G

+

D1

C2

U1

J10

12

00 01 02 03 04 05 06 07

OUT

C

RP1

C74

C78

13
C

U5

R16

R45

R16

CX2

UX2

SO20W

21

C

C22

C23

C24

POWER

D

N

1

G

S

D

R1
J2

J3

L293D

H-DRIVER

R13

RP2

17
R

U13

R64

R15

R63
R62

R61

R60

C
8
1

+3.3 V

CX1

RX15

UX1

SO20W

17
C

34

R33R

U9

R36

JP5

25

C26

C

+DC

J8

GND

NC

GND

+3.3 V

VBT

VRAM

/RES

SMODE1

SM0

/IORD

/IOWR

PG4

11

PG5

PG6

R

PG7

PE0

PE1

PE3

PE4

PE5

R12

7

E

PE6

P

6

F

PF7

P
4
F

PF5

P

R67

PB7

PB6

R68

R69

PB5

PB4

R70

USR SF

PB3

PB2

DS3

LINK

PB0

/RES_OUT

R36

DS2

ACT

R35

DS1

RCM3300

PROTOTYPING

BOARD

GND/EGND

L1

LINK

ACT

PD7

PD2

PD3

PD4

PD5

PG2

PG3

PG0

PG1

PC6

PC7

PC4

PC5

PC2

PC3

PC0

PC1

PF1

PF0

PF3

PF2

PA1

PA0

PA3

PA2

PA5

PA4

PA7

PA6

GND

STAT

R25

R26

J9

S1

S2

RESET

J
P

PD6

C

6

3

5

C30

R

J

J

J

J

C

2

P

P

P

P

1

2

7

8

4

5

R22

C29

R20

6

C
2

7

U3

R15

R14

C

C

2

2

1

2

C

C

1

1

7

8

C

C

1

1

2

3

C5

U1

R6

R23

R21

R22

C9

C8

C6C

R5

R

7

7

Q

1

JA

C4

Y1

R2

C

C2C3R

1

3

Q1

Q2Q3Q4

N
G

J12

R28

R27

R50

D4

D5D6D7

Q6

R49

30

29

R

R

CORE

S3

DS2

DS4

DS3

D2

L1

9

C

C8

S

U4

RCM33XX

P

C

E

7

E

9

D

R38

R
7

L2

R37

R50

9

DS4

C
4
2

7

C

L3

2

9

C

0

7

J2

C86

6

C70

R81

C80

R82

C82

R30

R31
R54

R53

R44

C61

C58

C43

CORE MODULE

C

U5

Y2

3
4

R
2
3

R17

C
2
8

C

R18

U4

R19

C

2
3

2

4

C25

C

C

2

1

0

9

R

C

C

1

1

1

3

U8

5

6

C

C

R9

1

1
1

0

R

C16

8

J1

RP1

R24

R

1

JB

1

2

3

4

D

O

O

O

O

H

H

H

H

32

R31R

DS5 DS6

TxE RxE GND TxF RxF 485+ GND 485

C1

C10

C11

JP4

C
7
1

C
7

7

C

C33
C32
C31

C14

U2

R

R

1

1

2

1

R10

J13

J14

VMA+ MDA1 MDA2 MDA3 MDA4 VMA

JP1

C3

U2

L293D

H-DRIVER

C4

OUT

RX13

RX14

DX2

18
C

R38

R14

BT1

+5 V

GND

RX16

RX17

RX18

UX4

DX1

T23-6
O
S

UX5

T23-6

SO

U10

R35

37

R

LCD1JB

JP2

U3

C5

+V/

LCD1JA

T
L

C

/
K
B

+

R40

U11

KEYPAD DISPLAY BOARD

VMB MDB1 MDB2 MDB3 MDB4 VMB+

J5

J4

51
R

PF0_CLKD

3

JP

PF0_QD

5

6

5

5

R

R

0

1

2

D

S

A

A

A

C

C

L

/

B

B

B

J15

R39

0

2

4

6

S

D

D

D

D

D

E

N

E

E

E

E

R

L

L

L

L

G

A3A1D0D2D4D

0

1

3

5

S

D

D

A2A

D

D

D

N

N

E

E

E

G

G

L

L

L

R42

C19

20

C

R41

U12

D8

LCD1JC

R52 R53

7

8

5

5

R

R

+3.3 V

3

0

A

D

B

B

D1D3D5D

K1

+5V QD2A QD2B QD1A QD1B GND

R60 R61

59

R54

R

3

4

5

6

6

6

6

6

R

R

R

R

+5 V

GND

1

2

3

4

5

6

7

D

D

D

D

D

D

D

B

B

B

B

B

B

B

J16

6

7

27

28

C

C

44

43

R

R

45

46

C30C29

R

R

Q5

R47

48
R

Figure B-10. Install Four-Channel Push-Pull Driver Chips

GND IN3 IN2 IN1 IN0 +5V

J6

U7

R62

7

C

2

R

R3R4R5R

C6

R8

U6

R9

18

R

0.5 A @ 30 V

RELAY RATED

J17

2

C

2 N
M

O
C
2

O

1 N

C

1 N
M

O

1 C

O

N

Y

S7

ELA

D

R

J7

RABBITNET

7

R

6

10
R

/
H

S

15

J11

A

C14C

L
F
L

M

E

IA

D

R

O

E

M

S

19

20

R

R

94 RabbitCore RCM3305/RCM3315