Right I have the comms OK from PC to TC35, I can sent comms ok from PIC to PC. So why oh why cant I send the comms from the PIC to the TC353....it's the same commands!!
This diagram explains the problem....
Friday 9 January 2015
PIC to TC35 comms issues
Ahhhhhhhhhhhhh, ahhhhhhhhh, noooooooo etc.
Right I have the comms OK from PC to TC35, I can sent comms ok from PIC to PC. So why oh why cant I send the comms from the PIC to the TC353....it's the same commands!!
This diagram explains the problem....
I can't figure out why the MAX232 on the TC35 side won't even register that it is receiving anything. When the PC is sending AT commands to the TC35 RS232 the TX & Rx lights blink. But when the PIC is trying to do the same there is not acknowledgement of anything being received. Eh!!
Right I have the comms OK from PC to TC35, I can sent comms ok from PIC to PC. So why oh why cant I send the comms from the PIC to the TC353....it's the same commands!!
This diagram explains the problem....
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