FREEMODBUS 1.2 LPC214X PORT
===========================
REQUIREMENTS
============
This demo application provides a port for the LPC214X series of processors
from NXP Semiconductors. The port was done using the MCB2140 from Keil[1]
which features a LPC2148 MCU.
It requires a wired serial port to a host processor and a Modbus Master
Software on the PC side to be useful. Demo versions of Modbus Masters
can be found in [2] and [3].
TESTING
=======
Start the Modbus Sample Application and test if the input registers starting
at protocol address 1000 can be read. There are four registers value avai-
lable and the output should look like:
Polling slave (Ctrl-C to stop) ...
[1000]: 6474
[1001]: 0
[1002]: 0
[1003]: 0
Polling slave (Ctrl-C to stop) ...
[1000]: -8831
[1001]: 0
[1002]: 0
[1003]: 0
Polling slave (Ctrl-C to stop) ...
The simple testing utility used in the 'demo_rtu.bat' script can be found
at [4].
[1] Keil MCB2140 kit: http://www.keil.com/mcb2140/
[2] WinTech ModScan32: http://www.win-tech.com/html/modscan32.htm
[3] Modus Poll: http://www.modbustools.com/modbus_poll.asp
[4] FieldTalk Modpoll: http://www.focus-sw.com/fieldtalk/modpoll.html
