FREEMODBUS 1.1 Z8Encore PORT ============================ REQUIREMENTS ============ This demo application provides a port for the Z8 Encore!® family of microcontrollers from Zilog[1]. The microcontroller used was the Z8F6422. 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]. SOURCE ====== If one wants to recompile the software, the ZDS II - Z8 Encore! 4.10.1 should be installed. The ZDS II - Z8 Encore! can be found at [4]. The project is for the Z8F6422 microcontroller, but has been tested with Z8F1622. * The ASCII mode was disabled so flash memory of Z8F1622 was enough. 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 [5]. [1] Zilog - Z8Encore 64K series: http://www.zilog.com/products/family.asp?fam=225 [2] WinTech ModScan32: http://www.win-tech.com/html/modscan32.htm [3] Modus Poll: http://www.modbustools.com/modbus_poll.asp [4] ZDS II - Z8 Encore!: http://www.zilog.com/software/zds2.asp [5] FieldTalk Modpoll: http://www.focus-sw.com/fieldtalk/modpoll.html