About SThom.6

SThom.6 · 2021-10-13

I am using the STM32H7B3LI-DK dev kit and want to use a simple timer with an interrupt. Using the most basic function, I've added a variable that simply increments within the interrupt. The timer is configured to hit the preloaded value at approx 1ms...

SThom.6 · 2021-10-13

Hi Jan, Thanks for your input and also to Tesla for previous response. I haven't come across instructions like _DCB() yet so need to look the efficacy of these.So Jan, are you saying that the 'correct' method of handling the flag to guarantee determi...

SThom.6 · 2021-10-13

Hi TDK,thanks for your reply; I think I understand what you're saying:When I clear the flag, there is a delay to when the flag actually gets reset. If this instruction is near the exit of the IRQ handler, then there is a time period (after the PC ha...

SThom.6 · 2021-10-13

Hi TDK, many thanks for helping.I have seen this kind of approach (the one you suggested) on some of the ST examples but questioned why they do it this way - It's something that isn't required on other micros.So - to try and further understand this, ...

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Hi, I'm trying to figure out why my basic timer interrupt on the STM32H7B3x dev board isn't working as expected. It seems to be triggering more often than I expect depending on when I clear the flag within the interrupt.

Re: Hi, I'm trying to figure out why my basic timer interrupt on the STM32H7B3x dev board isn't working as expected. It seems to be triggering more often than I expect depending on when I clear the flag within the interrupt.

Re: Hi, I'm trying to figure out why my basic timer interrupt on the STM32H7B3x dev board isn't working as expected. It seems to be triggering more often than I expect depending on when I clear the flag within the interrupt.

Re: Hi, I'm trying to figure out why my basic timer interrupt on the STM32H7B3x dev board isn't working as expected. It seems to be triggering more often than I expect depending on when I clear the flag within the interrupt.