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how to get gsm modem response into a buffer

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Parvati.k

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Hi all m using gsm modem of sim300 i have get the reponse of modem to AT command AT in a buffer and send this in a SMS using AT+CMGS command.
the problem m facing is something non-trivial m able to get the reponse of GSM modem into a buffer only after giving AT+CMGS. By this m getting two SMS's one without data one with response of GSM modem. Please help me out i have to get only one SMS with the response.
 

Your coding algorithm isn't clear enough. I think there is a timing problem in the code. If you are using microcontroller the I think your micocontroller is executing AT+CMGS 2 times. Check this point. You may have to modify the loop operations a little bit.
One more thing, try to read the response through USART immediately after sending commands. Use no delay there.

Regards,
RS
 

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