OLIMEX PIC-MICRO-WEB User Manual

PIC-MICRO-WEB development board

User's manual

Rev. E, January 2014

Copyright(c) 2011, OLIMEX Ltd, All rights reserved

Page 1

INTRODUCTION:

This small and compact board will give you the opportunity to add Internet
connectivity to any of your existing design or machine. Packed in compact plastic
enclosure with DB25 male connector for the microcontroller ports and with the
unique PoE (Power over Ethernet) feature which allows PIC-MICRO-WEB to take
power by the Ethernet cable and with no need for external power supply adapter.
The TCP-IP stack provided by Microchip is free of charge and royalties and allows
you to do http, ftp, e-mail etc services. You can control the PIC GPIOs by web
interface and to acquire and send data from external sensors to other Internet
applications and clients. With 128K Flash memory for programs and 128KB Flash
memory for web storage this small device have all resources usually needed for
general embedded Internet applications and interface of sensors and machines to
Internet.

BOARD FEATURES:

 PIC18F67J60 microcontroller with Ethernet and 1 Mbit memory for code
 1Mbit on board serial flash for web pages storage
 mini ICSP/ICD connector for programming with PIC-ICD2, PIC-ICD2-TINY and

PIC-ICD2-POCKET.

 Power-Over-Ethernet support (for use with MOD-PoE power supply injector on

standard LAN cables/switches)

 It is possible to use the board without PoE in which case DB25.pin8 (Vin) should

be connected to 24-50 VDC source

 The board is enclosed in plastic shell DB25 parallel port
 25 available signals and power supply on the DB25 connector
 Dimensions 50x30 mm (2 x 1.2")

ELECTROSTATIC WARNING:

The PIC-MICRO-WEB board is shipped in protective anti-static packaging. The
board must not be subject to high electrostatic potentials. General practice for
working with static sensitive devices should be applied when working with this
board.

BOARD USE REQUIREMENTS:

Cables: 1.8 meter USB A-B cable to connect PIC-KIT3. Other cables might be

required in case of other programming/debugging tools. You will also
need a LAN cable.

Hardware: Programmer/Debugger – PIC-KIT3 or other compatible

programming/debugging tool.

Page 2

MOD-PoE – module that provides Power-Over-Ethernet. If you don't
want to use this module, you should apply power (24-50VDC)
directly to DB25.pin8.

Software: PIC-MICRO-WEB is tested with MPLAB IDE v.7.62 + MPLAB C18 C

compiler. It is possible that the stack might not function properly if
used with later versions of MPLAB IDE.

PROCESSOR FEATURES:

PIC-MICRO-WEB board use MCU PIC18F67J60 from Microchip with these

features:

- IEEE 802.3 compatible Ethernet Controller

- Integrated MAC and 10Base-T PHY

- 8-Kbyte Transmit/Receive Packet Buffer SRAM

- Supports One 10Base-T Port

- Programmable Automatic Retransmit on Collision

- Programmable Padding and CRC Generation

- Programmable Automatic Rejection of Erroneous Packets

- Activity Outputs for 2 LED Indicators

- Buffer:

o Configurable transmit/receive buffer size
o Hardware-managed circular receive FIFO
o Byte-wide random and sequential access
o Internal DMA for fast memory copying
o Hardware assisted checksum calculation for various protocols

- MAC:

o Support for Unicast, Multicast and Broadcast packets
o Programmable Pattern Match of up to 64 bytes within packet at user-

defined offset

o Programmable wake-up on multiple packet formats

- PHY:
o Wave shaping output filter

- Selectable System Clock derived from Single 25 MHz External Source:
o 2.778 to 41.667 MHz

- Internal 31 kHz Oscillator

- Secondary Oscillator using Timer1 @ 32 kHz

- Fail-Safe Clock Monitor:

o Allows for safe shutdown if oscillator stops

- Two-Speed Oscillator Start-up

- High-Current Sink/Source: 25 mA/25 mA on PORTB and PORTC

- Five Timer modules (Timer0 to Timer4)

- Four External Interrupt pins

- Two Capture/Compare/PWM (CCP) modules

- Three Enhanced Capture/Compare/PWM (ECCP) modules:

o One, two or four PWM outputs

Page 3

o Selectable polarity
o Programmable dead time
o Auto-shutdown and auto-restart

- Up to Two Master Synchronous Serial Port (MSSP) modules supporting SPI (all

4 modes) and I2C™ Master and Slave modes

- Up to Two Enhanced USART modules:

o Supports RS-485, RS-232 and LIN 1.2
o Auto-wake-up on Start bit
o Auto-Baud Detect (ABD)

- 10-Bit, Up to 16-Channel Analog-to-Digital Converter module (A/D):

o Auto-acquisition capability
o Conversion available during Sleep

- Dual Analog Comparators with Input Multiplexing

- Parallel Slave Port (PSP) module (100-pin devices only)

- 5.5V Tolerant Inputs (digital-only pins)

- Low-Power, High-Speed CMOS Flash Technology:

o Self-reprogrammable under software control

- C compiler Optimized Architecture for Reentrant Code

- Power Management Features:

o Run: CPU on, peripherals on
o Idle: CPU off, peripherals on
o Sleep: CPU off, peripherals off

- Priority Levels for Interrupts

- 8 x 8 Single-Cycle Hardware Multiplier

- Extended Watchdog Timer (WDT):

o Programmable period from 4 ms to 134s

- Single-Supply 3.3V In-Circuit Serial Programming™ (ICSP™) via Two Pins

- In-Circuit Debug (ICD) with 3 Breakpoints via Two Pins

- Operating Voltage Range of 2.35V to 3.6V (3.1V to 3.6V using Ethernet module)

- On-Chip 2.5V Regulator

Page 4

BLOCK DIAGRAM:

Page 5

MEMORY MAP:

Page 6

Page 7

SCHEMATIC:

Page 8

clo se

10 0n F

10 0n F

22pF

22pF

220nF

CE220 uF/10V

10 0n F 10 0n F

100nF

10 0n F

10 0n

10 0n F

10 0n F

4.7 nF

10 0n F

10 0n F

10 uF/6.3 V

10pF

10pF

2.2 uF/50 V

CE22 0uF/10V

10 0n F

1N 58 19 (smd )

WU 06 S

fer rit e b ead

CL 47 uH/ SD7 5

RJP -0 03 TC1

red

VIN

VIN

VIN

25 MHz

32768/6pF

10 0k

33 0

49.9/1%

49.9/1%

49.9/1%

49.9/1%

270/1%2k/1%

4.3 k/ 1%

1.8 k/1%

39 0K

15 0K

33 0

1M

33 0

10 K

PIC 18 F67 J6 0

AT4 5DB 01 1

BD9 00 1FS O- 8

3.3 V

3.3 V

3.3 V

3.3 V

3.3 V

3.3 V

3.3 V

3.3 V

3. 3V

3.3 V

3.3 V

3.3 V

3.3 V

db 25 _ma le

1N4 731( 4. 3V)

#SS1

#SS1

MISO

MISO

MOSI

MOSI

PGC

PGC

PG D

PGD

RST

RST

RST

SCK

SCK

TPIN+

TPIN+

TPIN-

TPIN-

TPOUT+

TPOUT+

TPOUT-

TPOUT-

12

3.3 V_ E

C1

C2

C3

C4

C5

C6

C7 C8

C9

C1 0

C1 1

C1 2

C13

C1 4

C15

C16

C1 7

C1 8

C19

C2 0

C24

C31

D1

12345

6

ICS P

L1

L2

GND7NC8PW+9PW-

10

RCT5RD+3RD-

6

TCT4TD+1TD-

2

LAN

LED

P1P2P3

P4

P5

P6

GND

GND_

Q1

Q4

R1

R2

R3

R4

R5

R6

R7R8

R9

R1 0

R1 1

R1 2

R1 3

R1 4

R1 5

R20

#MCLR

7

AVDD19AVSS

20

ENVREG18OSC1/CLKI39OSC2/CLKO

40

RA0/LEDA/AN024RA1/LEDB/AN1

23

RA2/AN2/VREF-

22

RA3/AN3/VREF+

21

RA4/T0CKI

28

RA5/AN4

27

RB0/INT0/FLT0

3

RB1/INT14RB2/INT25RB3/INT3

6

RB4/KBI044RB5/KBI1

43

RB6/KBI2/PGC42RB7/KBI3/PGD

37

RBIAS

53

RC0/T1OSO/T13CKI

30

RC1/T1OSI/ECCP2/P2A

29

RC2/ECCP1/P1A

33

RC3/SCK1/SCL1

34

RC4/SDI1/SDA1

35

RC5/SDO1

36

RC6/TX1/CK131RC7/RX1/DT1

32

RD0/P1B

60

RD1/ECCP3/P3A

59

RD2/CCP4/P3D

58

RE0/P2D2RE1/P2C1RE2/P2B64RE3/P3C63RE4/P3B62RE5/P1C

61

RF1/AN6/C2OUT17RF2/AN7/C1OUT

16

RF3/AN815RF4/AN9

14

RF5/AN10/CVREF

13

RF6/AN1112RF7/#SS1

11

RG4/CCP5/P1D

8

TPIN+47TPIN-

46

TPOUT+51TPOUT-

50

VDD26VDD138VDD2

57

VDDCORE/VCAP

10

VDDPLL

54

VDDRX48VDDTX

49

VSS9VSS125VSS241VSS3

56

VSSPLL

55

VSSRX45VSSTX

52

U1

/CS/4/RESET/

3

/WP/

5

GND

7

SCK2SI

1

SO

8

VCC

6

U2

EN

5

FB

3

GND

7

INV4N.C.

2

RT

6SW1

VIN

8

U4

X1- 1

X1- 2

X1- 3

X1- 4

X1-5

X1- 6

X1- 7

X1- 8

X1- 9

X1- 10

X1- 11

X1- 12

X1- 13

X1- 14

X1- 15

X1- 16

X1- 17

X1-18

X1- 19

X1- 20

X1- 21

X1- 22

X1- 23

X1-24

X1-25

Z1

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J2

J3

J6

J4,5

J7,8

GND

POWER SUPPLY CIRCUIT:

PIC-MICRO-WEB takes power over Ethernet using the module MOD-PoE. Other

possibility is 24-50VDC to be directly applied to DB25.pin8 if MOD-PoE is not to be
used.

The board power consumption depends on the applied power supply and may
vary. At 24VDC the consumption is about 40 mA.

RESET CIRCUIT:

PIC-MICRO-WEB reset circuit is made with R20 (10k) pull-up, R13 (330Ω) and

capacitor C31 (100nF).

CLOCK CIRCUIT:

Quartz crystal 25 MHz is connected to PIC18F67J60 pin 39 clock in (OSC1/CLKI)
and pin 40 clock out (OSC2/CLKO).

Quartz crystal 32.768 kHz is connected to PIC18F67J60 pin 29 (T1OSI) and pin 30
(T1OSO) and supplies the Timer1.

JUMPER DESCRIPTION:

3.3V_E

enables 3.3 V power supply for the PIC18F67J60 and all other
devices.

Default state is closed.

INPUT/OUTPUT:

Status red LED connected to PIC18F25J10 pin 44 (PORTB.RB4/KBI0).

EXTERNAL CONNECTORS DESCRIPTION:

ICSP:

Pin # Signal name

1 RST

2 +5V

3 GND

4 PGD

5 PGC

6 NC

PGD I/O Program Data. Serial data for programming.

Page 9

PGC Input Program Clock. Clock used for transferring the serial data (output from ICSP,

input for the MCU).

DB25:

Pin # Signal Name Pin # Signal Name

1 RA4/T0CKI 2 RA0/LEDA/AN0

3 RC2/ECCP1/P1A 4 RA2/AN2/VREF-

5 RC7/RX1/DT1 6 VCC +3.3V

7 GND 8 VIN

9 RE1/P2C 10 RD2/CCP4/P3D

11 RE3/P3C 12 RE4/P3B

13 RD0/P1B 14 RA5/AN4

15 RA1/LEDB/AIN1 16 RA3/AN3/VREF+

17 RC6/TX1/CK1 18 RF2/AN7/C1OUT

19 RG4/CCP5/P1D 20 RB1/INT1

21 RB0/INT0/FLT0 22 RE0/P2D

23 RD1/ECCP3/P3A 24 RE2/P2B

25 RE5/P1C

VIN is the pin where you should apply 24-50VDC in case you don't want to use
MOD-PoE.

Page 10

LAN:

Pin # Signal Name Chip Side Pin # Signal Name Chip Side

1 TPOUT+ 6 TPIN-

2 TPOUT- 7 GND

3 TPIN+ 8 Not Connected (NC)

4 3.3V 9 VIN

5 Not Connected (NC) 10 GND

TPOUT- Output Differential signal output.
TPOUT+ Output Differential signal output.
TPIN- Input Differential signal input.
TPIN+ Input Differential signal input.
VIN Input Power supply for the board – over Ethernet.

Page 11

AVAILABLE DEMO SOFTWARE :

You could find information about PIC-MICRO-WEB board, Microchip TCP/IP stack
and how to change and configure the software on Understanding PIC WEB boards
here: https://www.olimex.com/Products/PIC/_resources/Understanding-PIC-WEB-

boards.pdf

Page 12

ORDER CODE:

PIC-MICRO-WEB – assembled and tested (no kit, no soldering required)

How to order?
You can order to us directly or by any of our distributors.
Check our web page https://www.olimex.com/ for more info.

All boards produced by Olimex are RoHS compliant

Revision history:

Board's Revision: Rev. C – created October 2009
Manual's Revision: Rev. E – edited January 2014

Fixed wrong minimum voltage required. Updated
links. Formatting improvements.

Page 13

Disclaimer:

© 2011 Olimex Ltd. All rights reserved. Olimex®, logo and combinations thereof, are registered
trademarks of Olimex Ltd. Other terms and product names may be trademarks of others.
The information in this document is provided in connection with Olimex products. No license, express
or implied or otherwise, to any intellectual property right is granted by this document or in
connection with the sale of Olimex products.
Neither the whole nor any part of the information contained in or the product described in this
document may be adapted or reproduced in any material from except with the prior written
permission of the copyright holder.
The product described in this document is subject to continuous development and improvements. All
particulars of the product and its use contained in this document are given by OLIMEX in good faith.
However all warranties implied or expressed including but not limited to implied warranties of
merchantability or fitness for purpose are excluded.
This document is intended only to assist the reader in the use of the product. OLIMEX Ltd. shall not
be liable for any loss or damage arising from the use of any information in this document or any error
or omission in such information or any incorrect use of the product.

Page 14

Mouser Electronics

Authorized Distributor

Click to View Pricing, Inventory, Delivery & Lifecycle Information:

Olimex Ltd.:
PIC-MICRO-WEB