On an STM32L100 series MCU:
- Assume that initially, Systick priority is set below EXTI15_10
- During the EXTI15_10 ISR:
- Systick occurs, but its interrupt is held because we're in a higher-prio interrupt;
- I then change Systick prio in the ISR to higher than EXTI15_10;
...does that re-prioritised Systick interrupt immediately trigger as soon as I've changed the priority, or does it only trigger once I RTI from the EXTI15_10 ISR?
I'm guessing it would trigger immediately, but the RefMan and datasheet are silent.
Thanks in advance,