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gsm interfacing with arm7

shashank rinke

hello
i am using sim300 and lpc2148 in my project. i am able to send the AT commands through uart1. bt unable to receive the response of module. it is showing a garbage on lcd 16x2

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    1) How do you know that you are able to send AT commands through uart1? Maybe you are sending garbage to the module?

    2) How do you know if the response from the module is real data, or garbage?

    3) How do you know if your print code is able to print real data to the LCD?

    For some reason, you give a minimalisting description that you have a problem. But no information at all about what you have done to try to figure out where the problem is. And since we haven't seen the code, we most definitely can't help spot any errors there either.

    So what exactly was your goal with this thread? Just to inform us that there might be something wrong with SIM300 modules so we should avoid them? Or that ARM7-based processors are not compatible with SIM300? Or that SIM300 can't be used in projects with 16x2 LCD modules?

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  • 0

    1) How do you know that you are able to send AT commands through uart1? Maybe you are sending garbage to the module?

    2) How do you know if the response from the module is real data, or garbage?

    3) How do you know if your print code is able to print real data to the LCD?

    For some reason, you give a minimalisting description that you have a problem. But no information at all about what you have done to try to figure out where the problem is. And since we haven't seen the code, we most definitely can't help spot any errors there either.

    So what exactly was your goal with this thread? Just to inform us that there might be something wrong with SIM300 modules so we should avoid them? Or that ARM7-based processors are not compatible with SIM300? Or that SIM300 can't be used in projects with 16x2 LCD modules?

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