MSPM0C1104: How to wake up MCU by uart or GPIOA interrupt in standby mode

bill.liao

Part Number: MSPM0C1104
Other Parts Discussed in Thread: SYSCONFIG

Tool/software:

Hi experts:

As the title said, and I've checked the example code, and do it as well, but seems my code and configuration can't wake up MCU by uart or GPIOA interrupt in standby mode, is there anything missing or I should know?Thanks.

Bill

3 months ago

0 Zoey Wei 3 months ago

TI__Genius 10611 points

Hi Bill,

What's the method you use to judge whether the MCU has been waken up from standby mode?

And check if you have enable sleep on exit function in your code or sysconfig.

Regards,

Zoey

0 bill.liao 3 months ago in reply to Zoey Wei

Intellectual 325 points

Hi,Zoey:

I've found the issue is caused by calling __WFI() in the callback function of TIMG8, can you confirm it? Thanks.

Bill

+1 Zoey Wei 3 months ago in reply to bill.liao

TI__Genius 10611 points

Hi Bill,

Yes, if you use the __WFI() after entering the TIMG8, then CPU will enter into low power mode again.

Zoey

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MSPM0C1104: How to wake up MCU by uart or GPIOA interrupt in standby mode