NVIC IABR - Information about what interrupt is active cant be found

[Tobe]

Where can i get the information about which interrupt is activated for each of those bits? How can such information be so hard to find? Cant find it on the ARM website! Just the information, that it shows activated interrupts, which is essentially useless... *facepalm*

[TDK]

Interrupts past the first 16 are vendor-defined. They are the in the reference manual of the relevant chip. For example:

 

[Tobe]

I see 13 without a NVIC position. I still dont know which bit corresponds to which interrupt.

[Tesla DeLorean]

Enumerate the entire table..

Architecturally:

256 bits on IABR [0..7]

16 System Handler

240 IRQHandlers (assigned by implementer, so STMicro for STM32's)

16 + 240 = 256

Divider the Address in Vector Table by 4

Check IABR0.15 is asserted whilst in SysTick_Handler

Check IABR0.26 is asserted whilst in EXTI4_IRQHandler