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TMS570LC4357: Help understanding how ESM Groups1 bits map to Tests

colleenk
Prodigy 120 points
Part Number: TMS570LC4357


The document spnu540a.pdf lists Diagnostics by "Unique Identifier".

Is there document that lists how every ESM bit maps to a Unique Identifier?

For some ESM errors, I am not sure what Unique Identifier it maps to.  For example, ESM bits like ESM Group1, Bit 73 (DCAN1 single-bit error).  I don't see a unique identifier in the CAN section that this maps to.  Does it map to one of the CAN unique identifiers?  If not, does this mean enabling this ESM error does not change diagnostic coverage?

Thanks a lot.

  • 0
    TI__Guru**** 197776 points
    Hello,

    Each module is assigned a three letter unique identifier, which is used uniformly in the Safety Manual, Safety Analysis Report, and FMEDA Documents to identify the module and it's diagnostics. For example, the unique identifier for DCAN module is "CAN", for clock is "CLK" etc.

    ESM1.73 (DCAN1 single-bit error) is DCAN1 SRAM ECC error which is generated by performing DCAN SRAM ECC test (CAN3). The unique ID is "CAN".
  • 0 in reply to QJ Wang
    Prodigy 120 points
    Thank you. It makes sense that bit errors would be included in SRAM ECC testing.