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GSM modem with Serial USART

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namdeogaikwad

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Hi..
I am using PIC18F2520, for GPRS modem communication.
Modem is successfully communicated through Hyper Terminal.
Then i am trying with Pic microcontroller,
i am Sending "AT" and trying to get response but some time it is giving responce or not some time.
and data is not getting correct.
plz. give me some suggetion or if any one has implemented same plz. can you share with me.
quetion it need to pull up Rx pin
Also i tryed for "AT+CMGF=1" but i didn't get response.

Thanks
 

Maybye wrong bps speed ? Tell us the name of the gsm modem
 

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