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DSP processor quit reading flash memory at Power up

Noe Martinez
Prodigy 20 points

Hi,

 

I have a board which the C6713b DSP processor used to boot from a flash memory. Now, it won't.  I have verified that the HD[4,3] are set to 10 to enable loading from flash before and after reset. Is there anything else that could prevent the board from starting up? Is there a good way to determine if something is wrong with the processor. It still runs from the emulator with the program, but it wont boot from the flash.

 

Thanks

Noe.

  • 0
    Genius 4530 points

    Hi Noe,

    Do you get any error when trying to boot from flash?

    I once had a similar board, which initially booted from flash. Then during experimentation I shorted 2 pins of the FLASH while probing which resulted in failure of boot operation.

    It showed a peculiar error which helped me identify the problem.

    Regards,

    Sid

  • 0 in reply to Sid
    TI__Mastermind 27585 points

    It could be that the flash was overwritten. Try reflashing it and booting again. Also check the memory location where you code should be loaded and see if it was loaded correctly.

    Jeff