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TMS570LC4357: ESM 1.92 "CCM-R5F - Operating status" during CPU8 / Lockstep Comparator (CCM) Self Test

Max Wittekind
Expert 1835 points
Part Number: TMS570LC4357

Hi experts,

We get a ESM 1.92 "CCM-R5F - Operating status" during CPU8 Lockstep Comparator (CCM) Self Test.

(Q1) Is the signalling of this error normal and can we simply ignore it during the self test and where in the documentation is the behaviour described?

(Q2) Can this Error occur during other self Test of the CCM-R5F and during Error Forcing and Self-Test Error Forcing?

Thank you and best regards,
Max

  • +1
    TI__Guru**** 193286 points

    Hi Max,

    Max Wittekind said:
    (Q1) Is the signalling of this error normal and can we simply ignore it during the self test and where in the documentation is the behaviour described?

    The device datasheet says that ESM 1.92 is asserted when not in lockstep or CCM is in self-test mode. It is normal to have this flag set during CCM selftest.

    Max Wittekind said:
    (Q2) Can this Error occur during other self Test of the CCM-R5F and during Error Forcing and Self-Test Error Forcing?

    I did not think so.