How to re-connect Lauterbach debugger to S32K344 after standby wakeup

[james-lee]

Hello Team,

Could I ask a question about how to re-connect Lauterbach debugger to S32K344 after standby wakeup?

When I run the low power mode example, the debugger was disconnected.

I found the low-power debug handshake protocol in the reference manual, and it seems the debugger should support it. Do you know if Lauterbach debugger supports it or not? If it’s supported, could you please explain how to configure the Lauterbach debugger configuration?

Best regards,

James

[steffen_krausse]

Hello James,

In this case you need to set the option:

  SYStem.Option PWRDWNRecover ON

If the debugger now looses the debug interface, it will assume a power down of the core and will try to recover the connection.

Best Regards,
Steffen.

[james-lee]

Hello Steffen,

Thank you for the answer.

However, it seems to make a reset immediately if the MCU goes to the STANDBY mode, and is not a solution for me.

I would like to know the way how the debugger connection is kept during the STANDBY mode (like 'core stopped' state) and resume debugging without reset after wake-up.

Best regards,

James 

[steffen_krausse]

Hello James,

This definitelly should not happen. What software version are you using? Could you please also provide the script?

What does STANDBY mean in detail: Is just the S32K3 turned off, or does the power of the full target collapse?

Best Regards,
Steffen.