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Original question:

TMS570LC4357: Error Handling in FEE

TMS570LC4357: How to get the ECC Error Status (No error/1-bit error/2-bit error) after reading from FEE?

Harshal Pawar
Prodigy 180 points

Part Number: TMS570LC4357

I'm working on accessing FEE of TMS570LC4357. To ensure the integrity of read data, I want to know the ECC Error Status (No error/1-bit error/2-bit error). Is there any function which returns this status?

Please help. 

  • 0
    TI__Guru**** 199536 points

    Hi Harshal,

    The on-chip FEE memory is supported by SECDED ECC diagnostic. The FEE SECDED ECC controller utilizes the same ECC algorithm as used in the main Flash memory; 8-bit of code are implemented per 64-bit of data. Detected uncorrectable errors result in a ESM error.

    In the case of a single bit error and double bit ECC error,  the CPU export the error detection events to the EPC module and ESM (1.4, 2.21). I will confirm it later.