PIC18F452 microcontroller and TCP/IP firmware. The
board supports any 40-pin DIP device that conforms to
the standard pin-out used by the PIC16F877 or
PIC18F452.
The board now uses the free Microchip TCP/IP Stack,
which is available in Application Note AN833 (DS00833).
Please refer to this document for code samples.
The Microchip TCP/IP Stack is a suite of programs that
can either provide services to standard TCP/IP-based
applications (HTTP Server, Mail Client, etc.) or be used in
a custom TCP/IP-based application. Potential users do
not need to know all of the intricacies of the TCP/IP
specifications to use it, and those interested only in the
accompanying HTTP Server application need not have
specific knowledge of TCP/IP.
The TCP/IP stack is implemented in a modular fashion,
with all of its services creating highly abstracted layers,
each layer accessing services from one or more layers
directly below it. The stack is written in the ‘C’
programming language, intended for both Microchip C18
and HI-TECH PICC 18 compilers, and is designed to run
on Microchip's PIC18 family of microcontrollers only.
Although, this particular implementation is specifically
targeted to run on Microchip’s PICDEM.net Internet/
Ethernet demo board, it can be easily retargeted to any
hardware equipped with a PIC18 microcontroller.
The PICDEM.net supports Ethernet and RS-232
interfaces. With a standard web browser such as
Microsoft®Explorer, HTML web pages generated by the
PICmicro®MCU can be viewed.
The initial board configuration is performed via the
RS-232 port using a standard terminal program to
configure the IP, Ethernet, etc., addresses for the board.
The demo board is also equipped with a 6-pin modular
connector to interface directly with the MPLAB® ICD 2
In-Circuit Debugger. With MPLAB ICD 2, the developer
can now modify or reprogram the onboard Flash-based
PICmicro device to meet the specific needs. A generous
breadboarding area is also available to add special
circuits for experimentation. The area is large enough to
add an embedded modem to provide for dial-up
capability.
Several status indicators and user interface devices are
provided, including a 16 x 2 LCD indicator and LEDs.
Features
·
·
·
·
·
·
·
·
·
·
·
·
·
Free Microchip TCP/IP stack
Web server with HTML
24L256 Serial EEPROM
Firmware for Xmodem to download web pages into
Serial EEPROM
ICSP™/ICD interface connector
Ethernet interface
RS-232 interface
16 x 2 LCD display
Package Contents
Demo Board
PIC18F452 MCU
TCP/IP stack by Microchip
MPLAB IDE Software
Demo and Evaluation Kit Software and
Documentation
·
CAT-5 Ethernet Crossover Cable
·
DB9 Serial Cable
·
Universal Power Supply
Host System Requirements
·
PC-compatible system with a Intel Pentium®class or
higher processor, or equivalent
·
A minimum of 32 MB RAM
·
A minimum of 40 MB available hard drive space
·
CD-ROM drive (for use with the accompanying CD)
·
Available serial port
·
Microsoft Windows®95/98, Windows NT®
,
Windows 2000 or Windows XP
System Description
The PICDEM.net board is used to experiment with
Microchip’s various TCP/IP solutions. The user has
immediate network access after the initial set up of the IP
address. The Flash microcontroller allows modifications to
the demonstration program to add application software.
The breadboard area includes a regulated 5V power supply
for the addition of sensors or custom circuits for testing.
Other standard or custom stack control software can be
loaded for evaluation.
Serial
DB-9
PICDEM.net™ Block Diagram
MCLR
ICD
Ethernet
RJ45
RJ-11
Serial Port
Interface
RS-232
User
User
User
User
PIC18F452
Ethernet
Interface
RTL8019S
EEPROM
System
Xmit
Rx
User
16 x
text
2 LCD
Linx
Part Numbers and Ordering Information:
PICDEM.net™ Internet/Ethernet Demonstration Board
Part Number
DM163004-LT
Description
PICDEM.net™ Demonstration Board
Availability
Now
Development Tools from Microchip
MPLAB®IDE
MPASM™ Assembler
MPLINK™ Linker/MPLIB™ Librarian
MPLAB SIM Simulator
MPLAB C18
MPLAB C30
PICkit™ 1
MPLAB ICD 2
MPLAB ICE 2000
MPLAB ICE 4000
PICSTART® Plus Programmer
MPLAB PM3 Device Programmer
K
EE
L
OQ
®Evaluation Kit
microID®Developer’s Kit
Americas
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Integrated Development Environment (IDE)
Universal PICmicro®Macro-Assembler
Linker/Librarian
Software Simulator
C Compiler for PIC18CXXX MCUs
C Compiler for dsPIC30F MCUs
Flash Starter Kit
In-Circuit Debugger
Full-featured Modular In-Circuit Emulator for PIC12, PIC16 and PIC18 MCUs
Full-featured Modular In-Circuit Emulator for PIC18 and dsPIC MCUs
Entry-level Development Kit with Programmer
Full-featured, Modular Device Programmer
Encoder/Decoder Evaluator
125 kHz and 13.56 MHz RFID Development Tools
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43-7242-2244-399
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33-1-69-53-63-20
49-89-627-144-0
39-0331-742611
31-416-690399
44-118-921-5869
As of 10/19/04
Microchip Technology Inc.
•
2355 W. Chandler Blvd.
•
Chandler, AZ 85224-6199 USA
•
(480) 792-7200
•
FAX (480) 792-7277
The Microchip name and logo, the Microchip logo, Accuron, dsPIC, K
EE
L
OQ
, microID, MPLAB, PIC, PICmicro, PICSTART, PRO MATE, PowerSmart, rfPIC, and SmartShunt are registered
trademarks of Microchip Technology Incorporated in the U.S.A. and other countries. AmpLab, FilterLab, MXDEV, MXLAB, PICMASTER, SEEVAL, SmartSensor and The Embedded Control Solutions
Company are registered trademarks of Microchip Technology Incorporated in the U.S.A. Analog-for-the-Digital Age, Application Maestro, dsPICDEM, dsPICDEM.net, dsPICworks, ECAN,
PICtail, PowerCal, PowerInfo, PowerMate, PowerTool, rfLAB, rfPICDEM, Select Mode, Smart Serial, SmartTel and Total Endurance are trademarks of Microchip Technology Incorporated in the
U.S.A. and other countries. SQTP is a service mark of Microchip Technology Incorporated in the U.S.A. All other trademarks mentioned herein are property of their respective companies.
