wake from WFI and immediately execute my code ??

__WFI works beauty. But I want more. Behold:

void vApplicationIdleHook() {
	__WFI();
 my_own_code(); // on wake, this will be executed *after* the intr handler :(
}

Upon every wake from WFI, I want to execute my own code immediately: ie. before any intr handler, and before any other threads.

I could slap "my_own_code();" into the top of *every* interrupt handler... but that is too much work.

Anyone have any ideas?

This topic has been closed for replies.

Best answer by berendi

void vApplicationIdleHook() {
 __disable_irq();
 __WFI();
 my_own_code();
 __enable_irq();
}

berendiBest answer

Principal

void vApplicationIdleHook() {
 __disable_irq();
 __WFI();
 my_own_code();
 __enable_irq();
}

Associate III

@berendi Thanks man! You are totally the dude of the day. Works great!

The disturbing question, of course, is how come I couldn't figger that out myself...

Principal III

And also in case of Cortex-M7 and older Cortex-M3 cores a __DSB(); must be added immediately before __WFI();.

Sign up