About SGome.1

SGome.1 · 2021-02-12

STM32F777__HAL_RCC_TIM5_CLK_ENABLE(); TIM5->PSC = HAL_RCC_GetPCLK1Freq()/1000000 - 1; TIM5->CR1 = TIM_CR1_CEN; cyclecountstart = TIM5->CNT; HAL_Delay(1); cyclecountend = TIM5->CNT; cyclecount = cyclecountend - cyclecountstart;I expect to see cyclec...

SGome.1 · 2021-02-24

I have to update this thread.The above code MIGHT work for other STM32 MCUs but it does NOT work for the STM32F7 in all cases: In my case:Since the APB1 Prescaler is not "/1" then the timers are actually running at 2x the PCKL1 frequency returned by ...

SGome.1 · 2021-02-13

That was the magic bullet. Thank you for your help. The working code: __HAL_RCC_TIM5_CLK_ENABLE(); TIM5->PSC = HAL_RCC_GetPCLK1Freq()/1000000 - 1; TIM5->EGR = TIM_EGR_UG; TIM5->CR1 |= TIM_CR1_CEN;I might search for the other thread I found I...

SGome.1 · 2021-02-12

Just want to add. Based on a search in these forums I changed the setting of CR1 to flip the DIR bit:TIM5->CR1 = TIM_CR1_CEN | TIM_CR1_DIR;Changing to subtract end from start because we are down-counting now, I get a "somewhat" reasonable 3100 counts...

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Using TIM5 for function call timing and not getting expected results

Re: Using TIM5 for function call timing and not getting expected results

Re: Using TIM5 for function call timing and not getting expected results

Re: Using TIM5 for function call timing and not getting expected results