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interfacing GSM modem with tm4c123gh6pm microcontroller

Radhika Anabathula
Intellectual 390 points

Other Parts Discussed in Thread: TM4C123GH6PM

Hai,

    
 currently i am working on TM4C123Gh6PM Micro controller(TIVA C SERIES LAUNCH PAD).For this I have interfaced my micro controller to the GSM modem,and now i am facing the problem with interrupt handler.....when i send a command "AT\r\n" from my controller to the GSM modem at that time it has to generate an interrupt in generally and it will give the response "ok",but ......here what actual 
process going on is,when i send command from my controller like "AT\r\n" by using "Putcharnonblocking()" function and again the same character is also placed in the interrupt handler........due to this problem the two string doesn't matched each other,when i comaared with my predefined string.
please give me any suggestions..............
 
                                                                              Thank u......