topic Re: LPC55S69 enable redlink server debug after powerdown in LPC Microcontrollers

LPC55S69 enable redlink server debug after powerdown

gnichimohamed — Tue, 06 Jul 2021 08:12:41 GMT

I have an LPCexpresso board with LPC55S69.
After I go to power down mode and wakeup from it, the debugger can no longer connect to the microcontroller. I get this error message:
16: Target error from status-poll: Nn(05). Wire ACK Fault in DAP access
Could not stop execution from running: Nn(05). Wire ACK Fault in DAP access

Is there a way to re-enable debug session of power down?

Cheers!

Re: LPC55S69 enable redlink server debug after powerdown

ZhangJennie — Tue, 06 Jul 2021 09:54:46 GMT

Hi,

Please power on your board in ISP mode. connect again. You should be able to connect your board again.

Have a nice day,

Jun Zhang

Re: LPC55S69 enable redlink server debug after powerdown

gnichimohamed — Tue, 06 Jul 2021 10:11:35 GMT

There is no issue in connecting to the board, the issue is when the lpc55s69 goes to powerdown and wakes up, the debug session is halted .

Is there a way to resume debugging after powerdown wakeup?

Re: LPC55S69 enable redlink server debug after powerdown

ZhangJennie — Wed, 07 Jul 2021 07:21:34 GMT

For LPC55S69, The debug mode is not supported in sleep, deep-sleep, power-down or deep-power down modes.

Once LPC enters these low power mode, debug is off. thus when wake up again, LPC need re-setup the debug interface, we can't continue debug as belfore.

Have a nice day,

Jun Zhang