FREEMODBUS 1.1 MSP430 PORT ========================== REQUIREMENTS ============ This demo application provides a port for the MSP430 series of processors from Text Instruments. The port was done using the MSP430-P169 from Olimex[1] which features a MSP430F169 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]. INSTALLATION ============ SOURCE ====== 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 available 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]. PROBLEMS ======== [1] Olimex MSP430-P169 kit: http://www.olimex.com/dev/msp-p169.html [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 Version: $Id: README.txt,v 1.1 2006/11/19 03:00:33 wolti Exp $