Need help with TIM15 of Stm32F051 and HAL

[Osto]

Posted on April 30, 2015 at 03:33

Hi all,

I want to measure a ~5ms signal at TIM15 Channel 1.Our examples and information I have dont work.Can somebody help me with sample HAL code? Thanks,Osto

[l239955_stm1]

Posted on April 30, 2015 at 12:45

Hi,

you can used CubeMX tool to generating initialization code. There is code example of using timer from my project:     TIM_HandleTypeDef            Tim6Handle;    __TIM6_CLK_ENABLE();        /* TIM6 Time base configuration */     Tim6Handle.Instance = TIM6;     Tim6Handle.Init.Prescaler = TIM_ICPSC_DIV1;     Tim6Handle.Init.CounterMode = TIM_COUNTERMODE_UP;     Tim6Handle.Init.Period = xxx;     Tim6Handle.Init.ClockDivision = TIM_CLOCKDIVISION_DIV1;     HAL_TIM_Base_Init(&Tim6Handle);     /* TIM6 IRQChannel enable */     HAL_NVIC_SetPriority(TIM6_DAC_IRQn, 1, 0);     HAL_NVIC_ClearPendingIRQ(TIM6_DAC_IRQn);     HAL_NVIC_EnableIRQ(TIM6_DAC_IRQn);     __HAL_TIM_SetCounter(&Tim6Handle, 0);     __HAL_TIM_CLEAR_IT(&Tim6Handle, TIM_IT_UPDATE);     HAL_TIM_Base_Start_IT(&Tim6Handle); Interrupt handling function is called at each period you set void TIM6_IRQHandler(void) { .... }

[Osto]

Posted on May 01, 2015 at 17:19

Dear Lukas,

This is an example for timebase but I need to measure a signal starting at rising edge and ending at falling edge and I need to measure the width in ~50ns resolution with 24MHz timwe clock.I'm wondering if you have a soulution for my problem.Reagrds,Osto

[l239955_stm1]

Posted on May 04, 2015 at 07:02

Oh I´m sorry :-).

Time measuring based on signal edge I implemented in my app by comparator. Comparator generates interrupt where I measure time. Second solution - comparator output can be connected direct to timer but you have to choose the other.