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Last Post 07 Mar 2009 10:56 PM by  pzaveri@celestialsys.com
GSM Modem
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ylogicpd@rehut.com



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Posts:
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--
20 Jun 2008 12:46 PM
    Hi,

    I am trying to get the GSM modem to work without much luck. What I have
    tried is just talking to ttyS0 using a default kernel. Also tried playing with
    the GPIOs that appear to goto the modem module (MODEM_nRESET and
    MODEM_nPWRON) which appear to map to GPIO_127 and GPIO_126
    based on the schematic. None of this appears to work.

    Any one know what is required to get the GSM modem working (responding to
    AT commands)?

    Thanks.

    -- Hunyue

    jcardona



    New Member


    Posts:
    New Member


    --
    07 Jul 2008 07:21 PM
    Posted By hyau on 20 Jun 2008 0:46 PM
    Hi,

    I am trying to get the GSM modem to work without much luck. What I have
    tried is just talking to ttyS0 using a default kernel. Also tried playing with
    the GPIOs that appear to goto the modem module (MODEM_nRESET and
    MODEM_nPWRON) which appear to map to GPIO_127 and GPIO_126
    based on the schematic. None of this appears to work.

    Any one know what is required to get the GSM modem working (responding to
    AT commands)?

    Thanks.

    -- Hunyue




    Hi Hunyue,

    Did you ever get any help on this? I'm trying the same with no luck.

    Thanks!

    Javier

    ylogicpd@rehut.com



    New Member


    Posts:
    New Member


    --
    14 Jul 2008 03:56 PM
    Posted By jcardona on 20 Jun 2008 0:46 PM
    Posted By hyau on 20 Jun 2008 0:46 PM
    Hi,

    I am trying to get the GSM modem to work without much luck. What I have
    tried is just talking to ttyS0 using a default kernel. Also tried playing with
    the GPIOs that appear to goto the modem module (MODEM_nRESET and
    MODEM_nPWRON) which appear to map to GPIO_127 and GPIO_126
    based on the schematic. None of this appears to work.

    Any one know what is required to get the GSM modem working (responding to
    AT commands)?

    Thanks.

    -- Hunyue




    Hi Hunyue,

    Did you ever get any help on this? I''m trying the same with no luck.

    Thanks!

    Javier




    No luck getting information from any source. The schematics suggests a GPIO is required to power it up but that doesn't seem to be working either.

    -- Hunyue

    pzaveri@celestialsys.com



    New Member


    Posts:
    New Member


    --
    07 Mar 2009 10:56 PM
    Hi,

    Did you got any help with this. We are facing same problem. We tried changing baud rate to 460800 and also installed minicom in our file system.

    Modem is not giving any reply to AT command.

    Is there any other way to communicate with modem or do we need to set any pins to power on modem ?


    Your help will be highly appreciated ?

    Thanks
    Prashant Z
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