k64 serial com munication stopped working after exiting vlps mode.

[hunglam]

HI,

In my application I need to switch periodically between run mode and very low power stop mode. I use the RTC alarm interrupt to exit the stop mode  which works just fine. However, after exiting the stop mode the serial communication stops working. Do I need to deinit the uart before entering the stop mode and initializes it again after exiting? hope someone can help me? thanks

[mjbcswitzerland]

Hi

It is not necessary to re-initialie anything at the UART after exiting VLPS.

See the following https://community.freescale.com/message/421247#421247 

Regards

Mark

[kerryzhou]

Hi Mark,

   Thank you for your reply, linker should be:

https://community.nxp.com/message/421247#421247

  Otherwise, it will be the wrong link.

Best Regards,

Kerry