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RM57L843: Syndrome table (Generation and Calculation)

Ali Zain
Prodigy 240 points
Part Number: RM57L843

How the Syndrome table is generated in RM57L843, and how it is used?

Waiting for your response.

Regards,

Ali Zain

  • 0
    TI__Guru**** 186226 points

    Hello,

    Testing the error correction and ECC logic in the CPU involves corrupting the ECC value returned to the CPU.

    The syndrome table is used to set an error for a particular bit (data or address or ecc). For instance, for big-endiness device (TMS570LSxx), if you want to corrupt data bit 62, you need to put the value 5Bh into the test register.

    or

  • 0 in reply to QJ Wang
    Prodigy 240 points

    I am still confused and could not understand what you are trying to say.
    Can you please explain it a little further?
    Can you please explain it with an example from the table below?

  • 0 in reply to Ali Zain
    TI__Guru**** 186226 points
    Hello Ali,

    This is used to set an error for a particular bit for DIAGMODE = 7. For example, to flip the bit 0 of data, I can write 0xCE to FEMU_ECC register.