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ColaChugger
ColaChugger
Associate II
November 18, 2019
Question

Privilege for Interrupts

  • November 18, 2019
  • 1 reply
  • 704 views

Hi,

I want to deactivate all interrupts during a short period.

I'm using 

__disable_irq();

however, it says, that this can only be used in privilege mode. If I use this function my board crashes. I want to look up the privilege level, but the RM at page 3055 is not clear enough, how I can access those bits. can someone please help.

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1 reply

Tesla DeLorean
Tesla DeLorean
Guru
November 18, 2019

Perhaps ST's Programming Manual would be a better source, or even ARM's Technical Reference Manual?

Look at how some of the RTOS (FreeRTOS or CMSIS RTOS, or whatever) manage such things, or perhaps better yet semaphore/mutex methods of protecting stuff and arbitrating access to resources.

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