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can ERROR# pin directly connect to RST# pin in tms570 ?

yang gunglun
Intellectual 490 points

can ERROR# pin directly connect to RST# pin in tms570 when esm is signaled a error for a warm reset?

i think a external pullup resistor  10k need at .ERROR#  pin.

does this connecting not affect cpu's startup when cpu power on?

 

  • 0
    TI__Mastermind 49120 points

    Hello,

    It is not recommended to directly connect the nERROR signal to the nRST signal. The nERROR signal can be driven out by the application when running a self-check on the nERROR pin itself, or when running a self-test on the CPU Compare Module.

    Instead, the nERROR signal needs to be monitored by a smart logic which can respond to the nERROR signal being driven low once the application has indicated that it is now done with all the self-tests that use the nERROR signal.

    Check the "Forcing an Error Condition" section on page 1791 and the ESM Initialization sequence on page 1792 of the TRM for the nERROR pin self-test procedure.

    Check the "Self Test Mode" section on page 1741 of the TRM for the CCM-R4F self-test procedure.

    Regards, Sunil