How to enter stop mode and how to wake up ?

[Clee.4]

Hi list,

I'm using stm32f103 and stm32cude ide. And I'm also using FreeRTOS.

This is my stop mode code.

This code is called in TimerCallback which is created from FreeRTOS.

HAL_SuspendTick();
__HAL_RCC_PWR_CLK_ENABLE();
//HAL_PWR_EnterSTOPMode(PWR_MAINREGULATOR_ON, PWR_SLEEPENTRY_WFI);
HAL_PWR_EnterSTOPMode(PWR_LOWPOWERREGULATOR_ON, PWR_SLEEPENTRY_WFI);
HAL_ResumeTick();
SystemClock_Config();

I need multi wakeup sources from stop mode. So I've set some pins of PortC to interrupt source. Those are EXTI0,1,2,3 and EXTI15_10.

I could wake up through touch interrupt (EXTI15_10) but I couldn't wake up from other pins.

Let me know how to fix it, please.

[waclawek.jan]

> So I've set some pins of PortC to interrupt source. Those are EXTI0,1,2,3 and EXTI15_10.

 > I could wake up through touch interrupt (EXTI15_10) but I couldn't wake up from other pins.

Without going to stop mode, do those "other interrupts" work?

JW

[Clee.4]

Yep. It works well before entering stop mode. When stm32f103 is waken up from stop mode by other pins but touch Int., it's stuck.

There is update.

If I remove LCD sleep code, it works. It's very weird.

And I've encountered incomprehensible situations which SPI2 returns HAL_BUSY at Touch Int.

CM