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Cortex-R5 target cannot be stopped

James.sun

After DS-5 connected to target, "Debug Control" tab shows "Cortex-R5_0#1 running", but "Commands" tab shows

"ERROR(TAD9-NAL30):
! Unable to stop device Cortex-R5_0
! Cannot stop target."

in response to "stop" cmd. Any idea about it? what issue usually causes this? 

Thanks

James

Parents
  • +1 Arm Employee Badge in reply to James.sun

    Hi James,

    Thanks for your log. I can see the debugger has already try to halt the processor by write 1 to the DBGDRCR[0], but the Core doesn't give response, I suspect the Core already hangs when the debugger connected. I suggest you to connect more earlier or look at your code flow, generally hang causes from peripherial device access. 

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  • +1 Arm Employee Badge in reply to James.sun

    Hi James,

    Thanks for your log. I can see the debugger has already try to halt the processor by write 1 to the DBGDRCR[0], but the Core doesn't give response, I suspect the Core already hangs when the debugger connected. I suggest you to connect more earlier or look at your code flow, generally hang causes from peripherial device access. 

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