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GSM interfacing with microcontroller

i am doing a project with gsm modem interfaced with ARM. and i my interface of gsm and muc is not working. i am using simcom gsm.and LPC2129/2368 microcontroller i am getting the GSM data through UART1 interrupt. please give me the connection details i.e. RS232 between the two and the UART1 settings

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0 Per Westermark over 15 years ago in reply to Andy Neil

Does the GSM module use compatible voltage levels as the microcontroller?

Have you checked if you need to handle any handshake signals?
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0 Per Westermark over 15 years ago in reply to Andy Neil

Does the GSM module use compatible voltage levels as the microcontroller?

Have you checked if you need to handle any handshake signals?
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0 dianne jose over 15 years ago in reply to Per Westermark

i am using SIMCOM_SIM300 gsm module where i have shorted 7 and 8 pin ie RTS and CTS.The other RS232 pins tx-rx and rx-tx and GND are connected accordignly.
THE MODEM IS SUPPLIED WITH A 9-12V DC SUPPLY.

the GSM module dosn't have compatible voltage levels as the microcontroller
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