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TMS320F28034: WDFLAG source of reset

BO
Genius 12760 points
Part Number: TMS320F28034

WDFLAG description in the manual states: "The reset was caused either by the XRS pin or because of power-up."
Is there any possibility to detect if XRS pin or power-up generated the reset?

Regards,
Bernd

  • 0
    TI__Genius 17315 points
    Bernd,

    On the F28034 I don't think this is possible You will notice that on the F28x7x we added a Reset Cause register which contains the cause of the last reset (sticky bits maintain state with multiple resets).

    I hope this helps. If this answers your question, please click the green "Verified Answer" button. Thanks.

    - Ken
  • 0 in reply to Ken Schachter
    TI__Guru** 115231 points
    That is correct. on this device we do not have any status bit to identify if reset was caused by XRSn or power on reset. Some user initialize couple of RAM locations with specific signature and check the value to determine the same. After reset if the value matches with known signature on all the locations then reset is caused by XRSn else power on reset. This is something user need to test in their setup though and make sure it works.

    Regards,

    Vivek Singh
  • 0 in reply to Vivek Singh
    TI__Genius 12760 points

    Ken, Vivek,

    thank you for clarification. Customer will look for a software solution.

    Regards, Bernd