UART Wakeup on KEA128

[pranav_prabhu]

I would like to know how to wakeup MCU from stop mode using UART. I have configured RXEDGIE but it doesn't seem to work.

[pranav_prabhu]

I tried this. It worked.

[Alice_Yang · Accepted solution]

Hello @pranav_prabhu 

Please confirm that there is indeed an active edge on the RxD pin.

It's a falling edge if RXINV = 0 and a rising edge if RXINV = 1.

Another suggestion is to refer to the low - power demo "FRDM_KEA128_PMC". First, confirm that it can work properly on your board, and then change the wakeup source.

BR

Alice