hi
i wanted to know how exactly handshaking signals (RTS and CTS) be included in the program.
we are using a wavecom modem that use AT commands.
we have also included MAX232 for ttl to rs232 conversion.
command to accept call is ATA. i wanted to know whether to trasmit ATA command as a string through Serial port(TXD) or transmit chatracters A,T,A separately or is there some other equivalent code that is being transmitted when using the hyperterminal
Thanks
"don't forget to transmit 'ENTER' after each command"
There's no such character as 'ENTER'.
AT commands need to be terminated with a Carraige-Return character - ASCII code 0x0D.
See my post titled "AT Command Termination Character" (21-Mar-2007 20:14) in this thread: http://www.keil.com/forum/docs/thread9483.asp