topic k64 serial com munication stopped working after exiting vlps mode. in Kinetis Microcontrollers

k64 serial com munication stopped working after exiting vlps mode.

hunglam — Sun, 07 Jan 2018 23:35:14 GMT

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

Re: k64 serial com munication stopped working after exiting vlps mode.

mjbcswitzerland — Mon, 08 Jan 2018 04:21:09 GMT

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

Re: k64 serial com munication stopped working after exiting vlps mode.

kerryzhou — Tue, 09 Jan 2018 02:44:27 GMT

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