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TMS570LC4357: ECC Flash Data area

Part Number: TMS570LC4357

Hello,

I would like to check value 0x00 in ECC Flash Data area. For this, do you know the corresponding value to program in Flash Data?

Best regards,

François

  • Hi Francois,

    The flash module provides 8 bits of ECC code for 64 bits of instructions or data fetched from the flash memory. The CPU calculates the expected ECC code based on the 64 bits data received and compares it with the ECC code returned by the flash module. The ECC and Data is not 1-to-1 relationship. For a given 64-bit data, we get one 8-bit ECC. But for a given ECC value, we don't know its corresponding data value (up to 256 different value).