Author Topic: GD32F303 - interrupts do not work when Stop low power mode is entered (Read 768 times)

vlado.valk · « **on:** June 07, 2023, 08:06:02 am »

When GD32F303 enters STOP low power mode, external interrupt on pin PA0 or any other interrupt(SPI, Uart etc) do not work and
do not wake up the MCU

thm_w · « **Reply #1 on:** June 08, 2023, 10:55:54 pm »

What is the code you used to enter STOP mode?

SPI or UART won't be an option as a wake source, PA0 should work though.

https://controllerstech.com/low-power-modes-in-stm32/

vlado.valk · « **Reply #2 on:** June 21, 2023, 12:29:47 pm »

I use the standard firmware library and exit stop mode by external interrupt(Falling edge) on PA0, but MCU does not exit sleep

Psi · « **Reply #3 on:** June 21, 2023, 01:12:15 pm »

are you sure you are entering sleep/stop mode with both the GPIO interrupt and global interrupts enabled?

thm_w · « **Reply #4 on:** June 21, 2023, 11:33:47 pm »

I use the standard firmware library and exit stop mode by external interrupt(Falling edge) on PA0, but MCU does not exit sleep

Post the actual code you are using to do that.

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