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Where are the OTP values with ECC errors for TMS570LS20216?

Juan Martinez
Prodigy 170 points
Other Parts Discussed in Thread: TMS570LS20216

I have read in the forum that there are OTP values with 1-bit and 2-bit ECC errors, but I can't find them in the TRM or data sheet for the TMS570LS20216.

Where are they located? Do they exist for this board?

-Juan

  • 0
    TI__Genius 9015 points

    This is data is for Bank 0 only.
    ECC for both locations is for data = 0x123456789ABCDEF0

    Reads of locations -0x00604207 give single bit error
    Reads of locations 0x00604208-0x0060420F give a double bit error

  • 0 in reply to John Hall
    Prodigy 170 points

    Hi John,

    Thank you for your response. I checked the values at the addresses that you mentioned, and they do contain these ECC errors. I had hoped that they would allow me to easily test the correctable error interrupt for the flash memory, but that was a wrong assumption on my part: these values do not reside in the F035 Flash module memory, and so the Flash cannot cause an interrupt for these values. I did see, however, that once the ECC error correction and detection was enabled in the CPU, it would correct the value with the 1-bit ECC error for these OTP values (i.e. it would correct the value at address 0x604204)

    Thanks for the help,

    Juan