Thread signal from isr

Mbed OS Best practice
1

Hi;

I want to know is it possible to use signal inside ISR ? I have checked handbook of MBED but things are not mentioned. Because I faced problems when using printf inside ISR (because of mutex lock).

Is it possible to signal (Flag) to thread from ISR ??

Thanks in advance.

2

Yes! You can set and get (so long as you use a 0 timeout) EventFlags from inside ISRs (see here in the RTOS docs). Semaphores and thread flags also work this way, though not mutexes sadly.

1 Like