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OMAP L138 SD card problem

Ali Reeza
Expert 1250 points

Hi:

I am testing SD on experimenter kit by latest bsl from Logic. Sample SD test program does not detect SD card and return error 13(time out).

Trying rtfs it detect and work with sd without any problem! so the hardware is ok.

What could be wrong!?

Thanks

  • 0
    TI__Genius 9490 points

    Alireza,

    Are you still having trouble with this?  There is probably some configuration not getting done on the testcase or there could be a Gel file dependency to configure PLLs and system Pinmux registers that is likely missing. 

    regards,

    miguel

     

  • 0 in reply to Miguel A. Alanis
    Expert 1250 points

    Thanks Miguel,

     

    Yes I am still struggling with this, though exhausted , I gave up it to solve other problems. I have checked these, nothing I found.

    I even run rtfs step by step and compared what it configure with mmcsd sample everything was the same. I only suspect that there maybe something for the new sd cards which i am ignorant of, since i found some steps in RTFS I cannot understand well yet .

    Alireza

  • 0 in reply to Ali Reeza
    TI__Genius 9490 points

    Alireza,

    Have you tried with different SD card? typically BSL examples are done early when they come up with the board and might not be extensively tested against all sorts of SD cards. Where as drivers, RTFS etc can be more uptodate.

    You can try making the changes that exist in the RTFS onto the standalone BSL code and see if that helps.  Else I would suggest to try contacting LogicPD for additional support on their sample code.  From the HW Silicon perspective it seems that there are no issues from the TI chip side :)

    regards,

    miguel

     

  • 0 in reply to Miguel A. Alanis
    Expert 1250 points

    I have already tried three different sd from 256M to brand new micro sd. The problem with rtfs is that it is a little bit complicated. My code is real time filtering of seismic channels so Ihave put them into IRAM and because rtfs footprint is big I cannot combine it with my code otherwise i did. My impression is also that there should be no serious problem.

    I will do your advices and check everything from the beginning. Regarding logic support., I have contacted them on other issues and they did not answer!

    Thanks