3 x rs232 tasks

wsallum wrote on Wednesday, November 14, 2007:

Hi all !
Someone could help me with three rs232 tasks ?
rs232_1 - used for modbus slave (rtu frames), interfacig with a human machine interface (always running)
rs232_2 - interface with a rfid reader (sometimes rfid sends a frame for my board)
rs_232_3 - at commands to a gsm modem (interval = 2 seconds). I have to receive the answer of that.
How to define this tasks ?
Thanks in advance
William.

cherepanov wrote on Wednesday, November 14, 2007:

Well…
The question is …

You have to write three task.

How much interfaces do you have ?