Skip to main content
B
bolurian
Associate II
October 10, 2023
Question

TIM1 break interrupt not firing

  • October 10, 2023
  • 5 replies
  • 1984 views

Hi,

I am configuring TIM1 to generate interrupt via MX and I can see that the ISR for TIM1 break is added to the code.
But the interrupt never triggers. I know that break from comparator does happen, but no interrupt!

Does anyone know what could be wrong?

5 replies

Billy OWEN
Billy OWEN
ST Employee
October 13, 2023

Hi @bolurian 

 

The forum moderator had marked your post as needing a little more investigation and direct support. An online support case has been created on your behalf, please stand by for just a moment and you will hear from us.

 

Regards,

Billy

Karl Yamashita
Karl Yamashita
Principal
October 14, 2023

Did you set the NVIC?

If a reply has proven helpful, click on Accept as Solution so that it'll show at top of the post.CAN Jammer an open source CAN bus hacking toolCANableV3 Open Source
I
IvanFromCyberia
Associate II
January 29, 2024

Hello, did you eventually manage to get Break interrupts?

I see the same problem in STM32G431 TIM8.

I can generate all other events interrupts, but cant see neither BREAK nor BREAK2.

I get both breaks flags raised, but no pending interrupts from TIM8.

 

Something is missing.

waclawek.jan
waclawek.jan
Super User
January 29, 2024

> I get both breaks flags raised, but no pending interrupts from TIM8.

Read out and check/show content of TIM8 registers.

Generic "interrupt does not fire" checklist here.

JW

    I
    IvanFromCyberia
    Associate II
    February 2, 2024

    What can I say!? RTFM!!!!

    Timer has more than 1 interrupt lines.

    And!!! Lines are often muxed with it's own or other IPs interrupt lines, when connected to NVIC.

    It is different for each timer (T1/T8/T20).

    Pay attention to NVIC settings when expect to use certain interrupts!!!

    Confusing design, though ... 

    Eh ...

    Terms & ConditionsAccessibility statement