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TMS320F280039C: Stuck in NMI Handler

Emma Wang
Expert 4830 points
Part Number: TMS320F280039C

Hi expert,

My customer is developing on F280039, and recently they found they will easily to stuck in NMI Handler.

I have customer to set EMU BOOTPIN CONFIG, it is as expected so they did not run into wait mode.

next I need to find why they go into the NMI Handler. first I check RESC, it showed there is a watchdog reset even we just do a POR reset and just programming the new code into F280039.

And did not click the run button on CCS. does this a bug ? or I missed some thing?

at the same time, why the memory Brower can not recognize the cpusysreg? since I suspect there is something wrong with the register showed and want to see it in memory brower.

My next try is to look at  Booting Status which at 0X 0002, but the value is not list on TRM, so I can not find any useful message from that. what does this value means?

Could you kindly explain my question before and do you have any ideas for my next debug?

BR

Emma

  • 0
    TI__Expert 6691 points

    Hi Emma,

    I am trying to reproduce the issue locally.

    From the details, i understand that you have not run the .out file, but just connected the target and it had the WDRS flag set.

    Are you observing the WDRS flag set even after a POR?

    Can you try to erase the flash and reload the program (tools > On-chip flash > erase flash).

    I am in discussion regarding the CCS memory browser view issue, will keep you posted.

    Regards 

    Aswin

  • 0 in reply to Aswin P
    TI__Expert 6691 points

    Hi Emma, 

    You can access the registers in memory browser either by searching the memory address or by entering the register name.

    The RESC register in CpuSysRegs group can be accessed using this way &CpuSysRegs.RESC

    Thanks

    Aswin