Digi MiniCore RCM5700 Series, MiniCore RCM6700 Series, RCM5700, RCM5750, RCM5760 User Manual
...
MiniCore RCM5700/RCM6700
C-Programmable Ethernet Core Module
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User’s Manual
90001191_B
MiniCore RCM5700/RCM6700 User’s Manual
Part Number 90001191 • Printed in U.S.A.
©2008–2010 Digi International Inc. • All right s reserved .
Digi International reserves the right to make changes and
improvements to its products without providing notice.
T rademarks
Rabbit, MiniCore, and Dynamic C are registered trademarks of Digi International Inc.
Wi-Fi is a registered trademark of the Wi-Fi Alliance.
Rabbit 5000, Rabbit 6000and MiniCore are trademark s of D igi Int ernatio nal Inc.
The latest revision of this manual is available at www.rabbit.com.
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TABLE OF CONTENTS
1. Introduction
1.1 RCM5700/RCM6700 Features ......................6
1.2 Advantages of the RCM5700 and RCM6700 8
1.3 Development and Evaluation Tools ...............9
1.3.1 Standard Development Kit ....................9
1.3.2 Deluxe Development Kit .......................9
1.3.3 Software ...............................................10
1.3.4 Online Documentation .........................10
2. Getting Started
2.1 Install Dynamic C........................................11
2.2 Hardware Connections.................................12
2.2.1 Step 1 — Prepare the Interface Board for
Development ...............................................12
2.2.2 Step 2 — Install Module on
Interface Board ............................................13
2.2.3 Step 3 — Connect USB Cable .............15
2.3 Starting Dynamic C......................................17
2.4 Run a Sample Program.................................17
2.4.1 Troubleshooting ...................................17
2.5 Where Do I Go From Here?.........................18
2.5.1 Technical Support ................................18
3. Running Sample Programs
3.1 Introduction..................................................19
3.2 Sample Programs..........................................20
3.2.1 Use of Serial Flash (not supported for
RCM5700/RCM5710) ................................24
4.4.1 Clocks ..................................................38
4.4.2 Spectrum Spreader ..............................38
4.5 Memory........................................................39
4.5.1 RAM ....................................................39
4.5.2 Program Flash Memory .......................39
4.5.3 Mass Storage Serial Flash ...................39
4.5.4 Encryption RAM Memory ..................39
5. Software Reference
5.1 More About Dynamic C...............................40
5.2 Dynamic C Function Calls..........................42
5.2.1 Digital I/O ...........................................42
5.2.2 Serial Communication Drivers ............42
5.2.3 User Block ...........................................42
5.2.4 RCM5700/RCM6700 Cloning ............43
5.2.5 TCP/IP Drivers ....................................43
5.2.6 Serial Flash Drivers (not supported on
RCM5700/RCM5710) ................................43
5.3 Upgrading Dynamic C .................................43
5.3.1 Add-On Modules .................................43
Appendix A. RCM5700/RCM6700
Specifications
A.1 Electrical and Mechanical Characteristics..45
A.1.1 mini PCI Express Connector Design
Recommendations .......................................52
A.2 Rabbit 5000 and 6000 Microprocessor Charac-
teristics..............................................................54
A.3 Jumper Configurations................................55
4. Hardware Reference
4.1 RCM5700/RCM6700 Digital Inputs and Outputs
26
4.1.1 Memory I/O Interface ..........................33
4.1.2 Other Inputs and Outputs .....................33
4.2 Serial Communication..................................34
4.2.1 Serial Ports ...........................................34
4.2.2 Ethernet PHY .......................................36
4.2.3 Programming Port ...............................36
4.3 Programming Modes....................................37
4.3.1 Standalone Operation of the
RCM5700/RCM6700 ..................................38
4.4 Other Hardware............................................38
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Appendix B. Interface Board
B.1 Introduction.................................................58
B.1.1 Interface Board Features .....................59
B.2 Mechanical Dimensions and Layout...........60
B.2.1 Headers ...............................................61
B.3 Ethernet .......................................................62
B.3.1 RJ-45 ...................................................62
B.3.2 RCM6700 LEDs ................................. 62
B.4 Power Supply ..............................................63
B.5 Using the Interface Board............................ 64
B.5.1 Add Additional Boards .......................65
B.6 Interface Board Jumper Configurations......66
Appendix C. Prototyping Board
C.1 Introduction .................................................68
C.1.1 Prototyping Board Features ................68
C.2 Mechanical Dimensions and Layout ...........69
C.2.1 Headers ...............................................71
C.3 Using the Prototyping Board.......................72
C.3.1 Add Additional Boards .......................73
Appendix D. Digital I/O Accessory Board
D.1 Introduction.................................................75
D.1.1 Digital I/O Accessory Board Features 75
D.2 Mechanical Dimensions and Layout...........76
D.2.1 Headers ...............................................77
D.3 Using the Digital I/O Accessory Board.......78
D.3.1 Configuration ......................................79
D.3.2 Add Additional Boards .......................81
Appendix E. Serial Communication
Accessory Board
E.1 Introduction..................................................83
E.1.1 Serial Communication Accessory Board
Features .......................................................83
E.2 Mechanical Dimensions and Layout ...........84
E.2.1 Headers ...............................................85
E.3 Using the Serial Communication Accessory
Board.................................................................86
E.3.1 Configuration ......................................87
E.3.2 Add Additional Boards .......................89
Appendix F. Using the TCP/IP Features
F.1 TCP/IP Connections.....................................90
F.2 TCP/IP Primer on IP Addresses...................92
F.2.1 IP Addresses Explained .......................94
F.2.2 How IP Addresses are Used ................95
F.2.3 Dynamically Assigned Internet Addresses
96
F.3 Placing Your Device on the Network..........97
F.4 Running TCP/IP Sample Programs .............98
F.4.1 How to Set IP Addresses in the Sample
Programs .....................................................99
F.4.2 How to Set Up your Computer for Direct
Connect .....................................................100
F.5 Run the PINGME.C Sample Program.......101
F.6 Running Additional Sample Programs With Di-
rect Connect....................................................102
F.7 Where Do I Go From Here?.......................103
Appendix G. Power Supply
G.1 Power Supplies..........................................104
G.1.1 Battery Backup for the
RCM5700/RCM5710 and RCM6700 Family .
105
G.1.2 Battery-Backup Circuit .....................106
G.1.3 Reset Generator .......................... ......106
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1. INTRODUCTION
The RCM5700 and RCM6700 are compact modules in a mini PCI
Express form factor, and incorporate the powerful Rabbit® 5000 and
6000 microprocessors with integrated 10/100Base-T Ethernet func
tionality and onchip SRAM. The Rabbit® 5000 and 6000 microprocessor features include hardware DMA, I/O lines shared with up to six
serial ports and four levels of alternate pin functions that include vari
able-phase PWM, an external I/O bus, quadrature decoder, and input
capture. This equates to a MiniCore module that is fast, efficient, and
the ideal solution for a wide range of embedded applications.
Development Kits are available with the essentials that you need to
-
-
design your own microprocessor-based system, and includes a com
plete Dynamic C software development system. The Development Kit
also contains an Interface Board with USB and Ethernet connections
that will allow you to evaluate the RCM5700 or RCM6700, and a Pro
totyping Board to help you to develop your own applications. You will
also be able to write and test software for the RCM5700/RCM6700
modules, including Ethernet applications.
The RCM5700 has a Rabbit 5000 microprocessor operating at up to 50.0 MHz, flash memory,
two clocks (main oscillator and real-time clock), and the circuitry necessary to reset and manage
the Rabbit 5000. The RCM6700 has a Rabbit 6000 processor operating at up to 187.5 MHz and
1MB of internal SRAM. An edge connector brings out the MiniCore module user interface to a
52-pin mini PCI Express socket on the motherboard the core module is mounted on.
The RCM5700/RCM6700 receives its +3.3 V power from the motherboard on which it is
mounted. The MiniCore module can interface with other CMOS-compatible digital devices
through the motherboard.
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1.1 RCM5700/RCM6700 Features
• Small size: ranges from 1.20" × 2.00" × 0.12" (30 mm × 51 mm × 3 mm) for the RCM5700/
RCM6700 model to 1.20" × 2.00" × 0.73" (30 mm × 51 mm × 19 mm) for the RCM5760/
RCM6760 model
• Microprocessor: RCM5700: Rabbit 5000 running at 50.0 MHz
RCM6700: Rabbit 6000 running at 187.5 MHz
• Up to 35 general-purpose I/O lines each configurable with up to four alternate functions
• 3.3 V I/O lines
•
Six CMOS-compatible serial ports — f
and two ports are configurable as SDLC/HDLC serial ports
• Ethernet PHY interface chooses Ethernet interface automatically based on whether a crossover
cable or a straight-through cable is used in a particular setup
• External I/O bus can be configured for 8 data lines, 8 address lines (shared with parallel I/O
lines), and I/O read/write
• RCM5700: 128KB SRAM (on Rabbit 5000 chip) and 1MB flash memory, with 2MB serial
flash and 512KB SRAM on RCM5750/RCM5760 models
RCM6700: 1MB SRAM (on Rabbit 6000 chip) and 1MB serial flash, with 4MB serial flash
and additional 1MB external SRAM on RCM6750/6760 models.
our ports are configurable as a clocked serial port (SPI),
• Real-time clock (battery-backable on all models except the RCM5750/5760)
• Watchdog supervisor
There are four RCM5700 production models. Table 1-1 summarizes their main features.
Table 1-1. RCM5700 Features
Feature RCM5700 RCM5710 RCM5750 RCM5760
Microprocessor
Ethernet Port
External SRAM — 512KB (8-bit)
SRAM
Flash Memory (program) 1MB
Flash Memory
(mass data storage)
Serial Ports
10/100Base-T
PHY only
6 shared high-speed, CMOS-compatible ports:
6 are configurable as asynchronous serial ports;
4 are configurable as clocked serial ports (SPI);
2 are configurable as SDLC/HDLC serial ports;
1 asynchronous serial port is used during programming
Rabbit® 5000 at 50.0 MHz
10/100Base-T,
RJ-45, 2 LEDs
128KB (Rabbit® 5000 onchip)
— 2MB (serial flash)
10/100Base-T
PHY only
10/100Base-T,
RJ-45, 2 LEDs
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The RCM5700 and RCM5750 models already have an Ethernet PHY device, the Integrated Circuit Systems ICS1893BK. The RCM5710 and RCM5760 are identical to the RCM5700 and
RCM5750 respectively, except that they have an integrated 10/100 Base-T magnetic RJ-45 jack
with two LEDs on the MiniCore printed circuit board.
There are four RCM6700 production models. Table 1-2 summarizes their main features.
Table 1-2. RCM6700 Features
Feature RCM6700 RCM6710 RCM6750 RCM6760
Microprocessor Rabbit® 6000 at 200.0 MHz
Ethernet Port
External SRAM — 1MB (16-bit)
RAM 1MB (Rabbit® 6000 onchip)
SRAM 32KB (Rabbit® 6000 onchip, battery-backable)
Flash Memory
(mass data storage)
Serial Ports
10/100Base-T
PHY only
1MB (serial flash) 4 MB (serial flash)
6 shared high-speed, CMOS-compatible ports:
6 are configurable as asynchronous serial ports;
4 are configurable as clocked serial ports (SPI);
2 are configurable as SDLC/HDLC serial ports;
1 asynchronous serial port is used during programming
10/100Base-T,
RJ-45, 2 LEDs
10/100Base-T
PHY only
10/100Base-T,
RJ-45, 2 LEDs
The Rabbit 6000 has an Ethernet PHY built into the processor . The RCM6710 and RCM6760 are
identical to the RCM6700 and RCM6750 respectively , except that they have an integrated 10/100
Base-T magnetic RJ-45 jack with two LEDs on the MiniCore printed circuit board.
Placing the RJ-45 Ethernet jack on the motherboard, which is what must be done with the
RCM5700/RCM6700 and RCM5750/RCM6750 models, provides significant design advantages
because the core module may then be placed anywhere on the motherboard. Rabbit’s Technical
Note TN266, PCB Layout for the Ethernet PHY Interface, provides complete design recommen
dations. If the RJ-45 Ethernet jack is on the MiniCore printed circuit board, as it is on the
RCM5710/RCM5760/RCM6710/RCM6760 modules, the edge of the MiniCore module with the
Ethernet jack must be positioned along the edge of the motherboard to allow access to the jack
since the entire assembly will likely be inside a customer-designed enclosure.
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All RCM5700/RCM6700 models are programmed through a USB connector on the motherboard
using a USB cable supplied with the Development Kit. The RCM5750/RCM5760 may also be
programmed remotely over an Ethernet link using the Remote Program Update library with
Dynamic C v. 10.56 or later. The RCM67xx series may also be used with the Remote Program
Update with Dynamic C v . 10.64 or later . See Application Note AN421, Remote Pr ogram Update,
for more information.
NOTE: The RabbitLink cannot be used to program the RCM5700 or RCM6700.
Appendix A provides detailed specifications for the RCM5700 and RCM6700.
1.2 Advantages of the RCM5700 and RCM6700
• Fast time to market using a fully engineered, “ready-to-run/ready-to-program” microprocessor
core.
• Competitive pricing when compared with the alternative of purchasing and assembling indi-
vidual components.
• Easy C-language program development and debugging
• Rabbit Field Utility to download compiled Dynamic C .bin files.
• Generous memory size allows large programs with tens of thousands of lines of code, and sub-
stantial data storage.
• Reference design allows integrated Ethernet port for network connectivity, with royalty-free
TCP/IP software.
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1.3 Development and Evaluation Tools
1.3.1 Standard Development Kit
The RCM5700/RCM6700 Standard Development Kit contains the hardware essentials you will
need to use your RCM5700 or RCM6700 module. These items are supplied in the standard version of the Development Kit.
• RCM5700 or RCM6700 module.
• Interface Board with standoffs/connectors.
• Prototyping Board with standoffs/connectors.
• USB cable to program MiniCore via Interface Board.
• Dynamic C CD-ROM, including product documentation on disk.
• Getting Started instructions.
• Registration card.
1.3.2 Deluxe Development Kit
In addition to the items included in the standard Development Kit, the Deluxe Development Kit
contains the following items.
• Universal AC adapter, 5 V DC, 2 A (includes Canada/Japan/U.S., Australia/N.Z., U.K., and
European style plugs). Development Kits sold in North America may contain an AC adapter
with only a North American style plug.
• Digital I/O and Serial Communication accessory boards for use with certain sample programs.
• CAT 5/6 Ethernet cable and DB9 to 10-pin header serial cable.
• Rabbit 5000 or 6000 Processor Easy Reference poster.
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Figure 1-1. Standard Development Kit
1.3.3 Software
The RCM5700/RCM5710 is programmed using version 10.44 or later of Dynamic C; the
RCM5750/RCM5760 requires version 10.56 or later of Dynamic C; and the RCM6700 family
requires version 10.64 or later. A compatible version is included on the Development Kit
CD-ROM.
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. For further information and
complete documentation, contact your Rabbit sales representative or authorized distributor, or
visit our Web site at www.rabbit.com.
1.3.4 Online Documentation
The online documentation is installed along with Dynamic C, and an icon for the documentation
menu can be 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 download from our Web sites.
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2. GETTING STARTED
This chapter describes the RCM5700/RCM6700 hardware in more
detail, and explains how to set up and use the accompanying Interface
Board.
NOTE: This chapter (and this manual) assume that you have the RCM5700/RCM6700 Development Kit. If you purchased an MiniCore 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
Dynamic C must be installed to develop and debug programs for the RCM5700/RCM6700 series
of modules (and for all other Rabbit hardware). The latest version of Dynamic C is included on
CD in the Development Kit and is also available for download at www.rabbit.com.
If you have not yet installed Dynamic C, 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 does not start, use the Windows Start | Run menu or Windows Disk Explorer to launch
The installation program will guide you through the installation process. Most steps of the process
are self-explanatory.
Once your installation is complete, you will have up to three new icons on your PC desktop. One
icon is for Dynamic C, another 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 any of the optional Dynamic C modules, install them after installing
Dynamic C. The modules may be installed in any order. Y ou must install the modules in the same
folder where Dynamic C was installed.
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setup.exe
from the root folder of the CD-ROM.
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2.2 Hardware Connections
There are three steps to connecting the Interface Board for use with Dynamic C and the sample
programs:
1. Insert standoffs/connectors on the Interface Board.
2. Install the MiniCore module on the Interface Board.
3. Connect the USB cable between the Interface Board and the workstation PC.
2.2.1 Step 1 — Prepare the Interface Board for Development
Insert a short plastic standoff supplied from the Development Kit in one of the corner holes from
the bottom of the Interface Board, then secure it with a long plastic standoff from above as shown
in Figure 2-2. Repeat this step so that plastic standoffs/connectors are in place at all four positions.
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Figure 2-2. Insert Standoffs/Connectors
2.2.2 Step 2 — Install Module on Interface Board
Position the MiniCore module with the edge connectors facing the mini PCI Express socket J1A at
an angle as shown in Figure 2-3 below. Insert the edge connectors into the mini PCI Express
socket J1A, then press down on the opposite edge of the MiniCore module to snap it into place in
holder J1B.
Figure 2-3. Install the MiniCore Module on the Interface Board
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Should you need to remove the MiniCore module, use two fingernails to hold back the spring clip
at J1B from the two MiniCore corners, lift up the edge of the MiniCore above J1B, then pull the
MiniCore away to remove the edge connectors from the mini PCI Express socket.
CAUTION:
Remove power before attempting to insert or remove the MiniCore in
the mini PCI Express socket.
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2.2.3 Step 3 — Connect USB Cable
The USB cable connects the RCM5700/RCM6700 to the PC running Dynamic C to download
programs and to monitor the MiniCore module during debugging. It also supplies power to the
Interface Board and the MiniCore via the USB interface.
Connect the USB cable between USB connector J5 on the Interface Board and your PC as shown
in Figure 2-4. Note that the USB cable connectors are different at either end, so there is only one
way to connect them between the PC and the Interface Board.
Figure 2-4. Connect USB Cable
Your PC should recognize the new USB hardware, and the LEDs next to the USB connector on
the Interface Board will flash — if you get an error message, you will have to instal l U SB d riv ers .
Drivers for Windows XP are available in the Dynamic C
Cable\WinXP_2K
other operating systems are available online at
folder — double-click
DPInst.exe
www.ftdichip.com/Drivers/VCP.htm.
Drivers\Rabbit USB Programming
to install the USB drivers. Drivers for
The green power LED on the Interface Board should light up when you connect the USB cable.
The MiniCore and the Interface Board are now ready to be used.
NOTE: A RESET button is provided on the Interface Board above the Ethernet jack to allow a
hardware reset without disconnecting power.
NOTE: Pins 1–2 on header JP1 on the Interface Board must be jumpered to download and debug
applications and sample programs with Dynamic C running. Pins 1–2 should be left unjumpered
to run an program already loaded in flash memory.
CAUTION: Do not jumper pins 1–3 on header JP1 on the Interface Board.
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2.2.3.1 Alternate Power Supply Connections — Deluxe Development Kit
The deluxe Development Kit contains a separate AC adapter that may be used to supply power to
the Interface Board and the RCM5700/RCM6700 when the USB cable is not connected or when
more power is needed than the 500 mA the USB cable is able to supply . The AC adapter may also
be used to supply power when the USB cable is connected, in which case the power supply
through the USB cable will be disconnected automatically.
Figure 2-5. Alternate Power Supply Connections—Deluxe Development Kit
First, prepare the AC adapter for the country where it will be used by selecting the plug. The
deluxe Development Kit presently includes Canada/Japan/U.S., Australia/N.Z., U.K., and Euro
pean style plugs. Snap in the top of the plug assembly into the slot at the top of the AC adapter as
shown in Figure 2-5, then press down on the spring-loaded clip below the plug assembly to allow
the plug assembly to click into place. Release the clip to secure the plug assembly in the AC
adapter.
Connect the AC adapter to DC input jack J6 on the Interface Board as shown in Figure 2-5. Plug
in the AC adapter. The green power LED on the Interface Board should light up. The MiniCore
and the Interface Board are now ready to be used.
Note that the center pin of J6 is positive.
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2.3 Starting Dynamic C
If you already have Dynamic C installed, you are now ready to test your programming connections by running a sample program. Start Dynamic C by double-clicking on the Dynamic C icon
on your desktop or in your Start menu. Select Store Program in Flash on the “Compiler” tab in
the Dynamic C Options > Project Options menu. Then click on the “Communications” tab and
verify that Use USB to Serial Converter is selected to support the USB cable. Click OK.
You may have to select the COM port assigned to the USB cable on your PC. In Dynamic C, select
Options > Project Options, then select this COM port on the “Communications” tab, then click
OK.
2.4 Run a Sample Program
Find the file PONG.C, which is in the Dynamic C SAMPLES folder. To run the program, open it
with the File menu, compile it using the Compile menu, and then run it by selecting Run in the
Run menu. The STDIO window will open on your PC and will display a small square bouncing
around in a box.
This program shows that the CPU is working.
2.4.1 Troubleshooting
If you receive the message
Could Not Open Serial Port
, check that the COM port assigned
to the USB cable was identified and set up in Dynamic C as described above. This same error
occurs when Windows has already allocated the COM port to another process.
If you receive the message
No Rabbit Processor Detected
, the USB cable may be connected to the wrong COM port, or the connection may be faulty . First, check both ends of the USB
cable to ensure that it is firmly plugged into the PC and the USB connector in the Interface Board.
Ensure that the module is firmly and correctly installed in its connector on the Interface Board.
If Dynamic C appears to compile the BIOS successfully, but you then receive a communication
error message when you compile and load a 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 on the “Communications” tab in the Dynamic C Options >
Project Options
menu. Select a slower Max download baud rate. Click OK to save.
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 lower
-
ing the debugging baud rate as follows.
• Locate the Serial Options dialog on the “Communications” tab in the Dynamic C Options >
Project Options
menu. Choose a lower debug baud rate. Click OK to save.
Press <Ctrl-Y> to f orce Dyna mic C to r ecom pile the B IOS. You should receive a
successfully
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message once this step is completed successfully.
Bios compiled
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 source code for the sample programs
them for your own use. The RCM5700/RCM6700 User’s Manual also provides complete hard-
ware reference information for the RCM5700/RCM6700, the Interface Board, the Prototyping Board,
and the accessory boards in the Deluxe Development Kit.
For advanced development topics, refer to the Dynamic C User’s Manual.
2.5.1 Technical Support
NOTE: If you purchased your MiniCore through a distributor or through a Rabbit partner, contact
the distributor or partner first for technical support.
If there are any problems at this point:
• Use the Dynamic C Help menu to get further assistance with Dynamic C.
• Check the Rabbit Technical Bulletin Board and forums at www.rabbit.com/support/bb/ and at
www.rabbit.com/forums/.
• Use the Technical Support e-mail form at www.rabbit.com/support/.
is provided to allow you to modify
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3. RUNNING SAMPLE PROGRAMS
To develop and debug programs for the RCM5700/RCM6700 (and for
all other Rabbit hardware), you must install and use Dynamic C. This
chapter provides a tour of its major features with respect to the
RCM5700/RCM6700.
3.1 Introduction
To help familiarize you with the RCM5700/RCM6700 modules, Dynamic C includes several
sample programs. Loading, executing and studying these programs will give you a solid hands-on
overview of the RCM5700/RCM6700’ s capabilities, as well as a quick start with Dynamic C as an
application development tool.
NOTE: The sample programs assume that you have at least an elementary grasp of ANSI C. If
you do not, see the introductory pages of the Dynamic C User’s Manual for a suggested reading
list.
In order to run the sample programs discussed in this chapter and elsewhere in this manual,
1. Your RCM5700/RCM6700 must be installed on the Interface Board as described in Chapter 2,
“Getting Started.”
2. Dynamic C must be installed and running on your PC.
3. The USB cable must connect the Interface Board to your PC.
4. Power must be applied to the RCM5700/RCM6700 through the Interface 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 (if it is not still open), then compile and run
it by selecting Run in the Run menu (or press F9). The RCM5700/RCM6700 must be in Program
Mode (see Figure 4-12) and must be connected to a PC using the USB cable.
Complete information on Dynamic C is provided in the Dynamic C User’s Manual.
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3.2 Sample Programs
Of the many sample programs included with Dynamic C, several are specific to the
RCM5700/RCM6700. These programs will be found in the
PLES\RCM6700
folder, depending on your MiniCore model. Sample programs in the
folder one level up are generally generic samples that can be run on any Rabbit-based product
Before you compile and run the following sample programs, make sure that pins 1–2, 5–6, and 7–
8 on header JP1 of the Interface Board are jumpered. Each sample program has comments that
describe the purpose and function of the program. Follow the instructions at the beginning of the
sample program.
CAUTION: Do not jumper pins 1–3 on header JP1 on the Interface Board.
SAMPLES\RCM5700
or
SAM-
SAMPLES
•
FLASHLED01.C
—demonstrates the use of costatements to flash LED DS1 on the Interface
Board. PD0 on the MiniCore is used to drive the LED.
•
FLASHLED01A.C
—demonstrates the use of a state machine with standard C constructs to flash
LED DS1on the Interface Board. PD0 on the MiniCore is used to drive the LED.
•
FLASHLED02.c
—demonstrates the use of costatements to detect and debounce switch S1
being pressed on the Interface Board. LED DS1 flashes on the Interface Board, and the rate at
which it flashes changes each time you press switch S1. I/O control for the LED is provided by
PD0 on the MiniCore, and PD1 detects the activity on switch S1.
•
FLASHLED02A.c
—detects and debounces switch S1 being pressed on the Interface Board.
LED DS1 flashes on the Interface Board, and the rate at which it flashes changes each time you
press switch S1. I/O control for the LED is provided by PD0 on the MiniCore, and PD1 detects
the activity on switch S1.
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The Digital I/O accessory board needs to be installed to run the
TOSERIAL.C
sample programs. This accessory board is included only with the Deluxe Develop-
SWITCHLEDS.C
and the
SERIAL-
ment Kit.
To install the Digital I/O accessory board, insert the strip of header pins included with the acces-
sory board into the socket at J12 on the bottom side of the Digital I/O accessory
up the Digital I/O accessory board with the Interface Board standoffs/
connectors and install the
board. Then line
Digital I/O accessory board pins into socket J2 on the Interface Board. Secure the Digital I/O
accessory board with the long plastic standoffs/connectors from above as shown in Figure 3-6.
Figure 3-6. Install Digital I/O Accessory Board
Pins 1–2, 3–4, 5–6, and 7–8 on headers JP5 and JP8 on the Digital I/O accessory board must be
jumpered. Pins 2–4 and 3–5 on header JP7 on the Digital I/O accessory board must also be jumpered.
•
SWITCHLEDS.C
—monitors switches S1, S2, S3, and S4 on the Digital I/O accessory board and
lights LEDs DS1–DS4 when the corresponding pushbutton switch is pressed. LEDs DS1–DS2
on the Digital I/O accessory board are controlled by PA4–PA7, and switches S1–S4 are con
-
trolled by PB4–PB7 respectively.
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The
SERIALTOSERIAL.C
SAMPLES\RCM6700\SERIAL
•
SERIALTOSERIAL.C
sample program is in the
SAMPLES\RCM5700\SERIAL
or
folder, depending on your MiniCore model.
—monitors switches S1, S2, S3, and S4 on the Digital I/O accessory
board and lights LEDs DS1–DS4 when the corresponding pushbutton switch is pressed. LEDs
DS1–DS2 on the Digital I/O accessory board are controlled by PA4–PA7, and switches S1–S4
are controlled by PB4–PB7 respectively. The sample program sends messages from Serial Port
B to Serial Port C to indicate that a switch was pressed. Messages received by Serial Port C are
displayed in Dynamic C’s STDIO window.
Before you compile and run this sample program, you will need to connect J2 pin 19 (PC0/TxD)
to J2 pin 22 (PC3/RxC) or the corresponding holes on P2.
If you are using the Serial Communication Accessory Board, you should connect pin 3 (TXD) on
header J3 to pin 5 (RXC) on header J4 instead.
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The Serial Communication accessory board needs to be installed to run the following serial sample program in the
SAMPLES\RCM5700\SERIAL
or
SAMPLES\RCM6700\SERIAL
folder, depending on your MiniCore model. This accessory board is included only with the Deluxe Development
Kit.
T o insta ll the Serial Communication accessory board, insert the stri p of header pins included with
the accessory board into the socket at J12 on the bottom side of the Serial Communication acces
sory
board. Then line up the
Digital I/O accessory board standoffs/
Serial Communication
connectors and install the Serial Communication accessory
accessory board with the Interface Board or
board pins into socket J2 on the Interface Board or the Digital I/O accessory board. Secure the
Serial Communication accessory board with the long plastic standoffs/connectors from above as
shown in Figure 3-6.
-
Figure 3-7. Install Serial Communication Accessory Board
Pins 1–2, 3–4, 5–6, and 7–8 on header JP5 on the Serial Communication accessory board must be
jumpered. Pins 1–2 and 3–4 on header JP7 on the Serial Communication accessory board must
also be jumpered.
•
SIMPLE5WIRE.C
—This program demonstrates 5-wire RS-232 serial communication with
flow control on Serial Port C and data flow on Serial Port D.
T o set up the Serial Communication accessory board, you will need to tie TxD and RxD on the
RS-232 header at J3, then tie CTS and RTS, also on J3, using jumpers as shown in Figure 3-7.
Once you have compiled and run this program, you can test flow control by disconnecting the
CTS jumper from RTS while the program is running. Characters will no longer appear in the
STDIO window, and will display again once CTS is connected back to R TS.
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Once you have loaded and executed these sample programs and have an understanding of how
Dynamic C and the RCM5700/RCM6700 modules interact, you can move on and try the other
sample programs, or begin developing your own application.
3.2.1 Use of Serial Flash (not supported for RCM5700/RCM5710)
The following sample programs from the
with the RCM5750/RCM5760 models.
•
SERIAL_FLASHLOG.C
—This program runs a simple W eb server and stores a log of hits on the
SAMPLES\RCM5700\Serial_Flash
folder may be used
home page of the serial flash “server.” This log can be viewed and cleared from a browser at
http://10.10.6.100/. You will likely have to first “configure” your network interface card for a
“10Base-T Half-Duplex,” “100Base-T Half-Duplex,” or an “Auto-Negotiation” connection on
the “Advanced” tab, which is accessed from the control panel (Start > Settings > Control
l) by choosing Network Connections.
Pane
•
SFLASH_INSPECT.C
—This program is a handy utility for inspecting 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 five different commands to print out the contents of a specified page, print out the contents of a range of pages,
clear (set to zero) all the bytes in a specified page, set all bytes on the specified page to a given
value, or save user-specified text to a selected page.
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4. HARDWARE REFERENCE
Chapter 4 describes the hardware components and principal hardware subsystems of the RCM5700/RCM6700. Appendix A, “RCM5700/RCM6700 Specifications,” provides complete physical and electrical specifications.
Figure 4-8 shows the Rabbit-based subsystems designed into the RCM5700/RCM6700.
Figure 4-8. RCM5700/RCM6700 Subsystems
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4.1 RCM5700/RCM6700 Digital Inputs and Outputs
Figure 4-9 shows the RCM5700/RCM6700 pinouts for the edge connector.
The edge connectors are designed to interface with a 52-pin mini PCI Express socket.
Pin 8 has different functionality between the RCM5700 and RCM6700, due to differences in the
Ethernet PHY designs. On the RCM5700, it is the activity LED signal, while on the RCM6700 it
is +2.5V for the Ethernet interface.
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Figure 4-9. RCM5700/RCM6700 Pinouts
Figure 4-10 shows the use of the Rabbit 5000/6000 microprocessor ports in the RCM5700/
RCM6700 modules.
Figure 4-10. Use of Rabbit 5000/6000 Ports
The ports on the Rabbit microprocessor used in the RCM5700/RCM6700 are configurable, and so
the defaults can be reconfigured. Table 4-3 lists the Rabbit factory defaults and the alternate configurations.
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Table 4-3. RCM5700/RCM6700 Pinout Configurations
Pin Pin Name Default Use Alternate Use Notes
1 GND
2 +3.3 V
3 Tx+
4 Rx+
5 Tx–
6 Rx–
Ethernet
7 LNK
ACT
8
(RCM5700)
+2.5V
(RCM6700)
9 PE0 Input/Output
10 PE1 Input/Output
Not connected on the
RCM5710/5760/6710/6760
Requires external pulldown
on the RCM5700/5750/6700/
6750
Requires external pullup on
the RCM5700/5750
I/O Strobe I0
A20
Timer C0
TCLKF
INT0
QRD1B
I/O Strobe I1
A21
Timer C1
RXD/RCLKF
INT1
QRD1A
Input Capture
11 PE2 Input/Output
12 PE3 Input/Output
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I/O Strobe I2
A22
Timer C2
TXF
DREQ0
QRD2B
I/O Strobe I3
A23
Timer C3
RXC/RXF/SCLKD
DREQ1
QRD2A
Input Capture
Table 4-3. RCM5700/RCM6700 Pinout Configurations
Pin Pin Name Default Use Alternate Use Notes
I/O Strobe I5
INT1
13 PE5 Input/Output
14 PE6 Input/Output
15 PE7 Input/Output
16 /RESET_IN Input Input to Reset Generator
17 PD0 Input/Output
PWM1
RXB/RCLKE
Input Capture
I/O Strobe I6
PWM2
TXE
DREQ0
I/O Strobe I7
PWM3
RXA/RXE/SCLKC
DREQ1
Input Capture
I/O Strobe I0
Timer C0
D8
INT0
SCLKD/TCLKF
QRD1B
Serial Port E
18 PD1 Input/Output
IA6
I/O Strobe I1
Timer C1
D9
INT1
RXD/RCLKF
QRD1A
Input Capture
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Table 4-3. RCM5700/RCM6700 Pinout Configurations
Pin Pin Name Default Use Alternate Use Notes
I/O Strobe I2
Timer C2
19 PD2 Input/Output
D10
DREQ0
TXF/SCLKC
QRD2B
20 PD3 Input/Output
21 PC0 Input/Output
22 PC1 Input/Output
23 PC2 Input/Output
24 PC3 Input/Output
25 PC4 Input/Output
26 PC5 Input/Output
IA7
I/O Strobe I3
Timer C3
D11
DREQ1
RXC/RXF
QRD2A
Input Capture
TXD
I/O Strobe I0
Timer C0
TCLKF
RXD/TXD
I/O Strobe I1
Timer C1
RCLKF
Input Capture
TXC/TXF
I/O Strobe I2
Timer C2
RXC/TXC/RXF
I/O Strobe I3
Timer C3
TXB
I/O Strobe I4
PWM0
RXB/TXB
I/O Strobe I5
PWM1
Serial Port F
Serial Port D
Serial Port C
Serial Port B
(The RCM5750/RCM5760
and RCM6700 family serial
flash uses Alternate Serial
Port B (PD4/PD5).
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