topic Re: Priorities for Interrupts in MPC5xxx

Priorities for Interrupts

berat24 — Wed, 09 Jun 2021 13:57:05 GMT

Hello everyone,

I am using MCP5777C MCU and I have a question about interrupt priorities. I could not find any tables showing default priorities settings when I have examined reference manuel.

Is there any source showing us which interrupts have which priority numbers as default?

Thanks in advance:))

Re: Priorities for Interrupts

petervlna — Thu, 10 Jun 2021 06:22:42 GMT

Hello,

The default priority is stated in reference manual and it is 0.

Best regards,

Peter

Re: Priorities for Interrupts

berat24 — Thu, 10 Jun 2021 06:57:29 GMT

@petervlna thanks a lot. The highest priority number is 16 but there are many interrupts. What will do if ı enable 20 different interrupt flag? In this situation, some interrupts will have same priorities.

Re: Priorities for Interrupts

petervlna — Mon, 14 Jun 2021 06:18:39 GMT

Hello,

Pay close attention to INTC chapter for all the details about interrupts and their processing.

If you have multiple interrupts with same priority, first come will be executed.

If 2 come in exact same time then one with lowest INTC number will be executed.

Best regards,

Peter