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

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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.

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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

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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

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BLOCK DIAGRAM:

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