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TI Home » TI E2E Community » Support Forums » Low Power RF & Wireless Connectivity » Low Power RF Hardware & Tools Forum » GSM GMSK receiver
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GSM GMSK receiver

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carlos cecanecchia
Posted by carlos cecanecchia
on May 04 2011 20:21 PM
Prodigy80 points

 Can we make a GMSK receiver that can decode a GSM burst with CC1101 ?

 

cc1101
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  • TA12012
    Posted by TA12012
    on May 06 2011 10:10 AM
    Suggested Answer
    Expert8395 points

    Carlos,

    No, the GSM standard specifies that the sync word is located in the middle of the burst, where the sync word in a CC1101 is required to be in the front of the burst. Furthermore the CC1101 requires a fairly long preamble (16 bits) to aquire bit sync and that does not exist in the the GSM protocol.

    /TA

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  • carlos cecanecchia
    Posted by carlos cecanecchia
    on Jul 31 2011 13:27 PM
    Prodigy80 points

    Can we receive in raw mode ?

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  • TA12012
    Posted by TA12012
    on Jul 31 2011 16:55 PM
    Expert8395 points

    Carlos,

    I cannot say that anyone has ever tried, but you might have a chance with the new CC1120 series devices. They only need a 2-4 bit preamble for AGC and then the rest can be done by software later.

    http://focus.ti.com/docs/toolsw/folders/print/cc1120emk-868-915.html

    Regards,
    /TA

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    cc1120
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  • carlos cecanecchia
    Posted by carlos cecanecchia
    on Apr 02 2012 14:42 PM
    Prodigy80 points

    Can we decode / transmit  the EPC GEN 2 RFID protocol with the CC1101 or CC1120 ?

    Regards

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  • TA12012
    Posted by TA12012
    on Apr 10 2012 22:58 PM
    Verified Answer
    Verified by carlos cecanecchia
    Expert8395 points

    Carlos, 

    Yes, we have a demo running with EPC GEN 2 RFID protocol being transmitted from a CC430 (CC1101).

    Regards
    /TA 

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  • carlos cecanecchia
    Posted by carlos cecanecchia
    on Apr 12 2012 09:30 AM
    Prodigy80 points

    Very nice !!!!!

    We have a CC430 tag already done, and only we need te code. How can we get it ?

    Regards

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  • carlos cecanecchia
    Posted by carlos cecanecchia
    on May 13 2012 15:52 PM
    Prodigy80 points

    Srs,

    Can we get this CC430 EPC transmiter sample code ? Regards 

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  • TA12012
    Posted by TA12012
    on May 13 2012 16:48 PM
    Expert8395 points

    Carlos,

    It is a little more complicated than just sending you some code. The back scatter decoder is not the RX portion of a CC430, it needs seperate circuit added.

    I will forward your request to the business manager of this portfolio.

    Regards
    /TA

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  • carlos cecanecchia
    Posted by carlos cecanecchia
    on May 13 2012 17:41 PM
    Verified Answer
    Verified by carlos cecanecchia
    Prodigy80 points

    Thank you for prompt response.I am looking for the details.

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  • carlos cecanecchia
    Posted by carlos cecanecchia
    on May 13 2012 17:48 PM
    Prodigy80 points

    I forgot to ask :

    The CC430 will be used as a active EPC TAG. There is any diference ?

    Regards

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  • carlos cecanecchia
    Posted by carlos cecanecchia
    on Mar 12 2013 06:28 AM
    Prodigy80 points

    You told me that you have a EPC reader, working using a CC430. How about this board ? You told me in Brazil, that it was working very well..

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