About RRajb.1

RRajb.1 · 2020-12-31

Hi All,I am using STM32F74xxx.I need to count micro seconds. currently we are using HAL_GetTick(), function but it gives the time in ms.After I searched on google I found some ways to get micro seconds count, and I tried it but no luck.can any one he...

RRajb.1 · 2020-12-21

Hi,we are using stm32f745xx and bellow are our configurations.we are using total 6 timers, out of which we are using TIM6 to generate 50us interrupt.htim6.Instance = TIM6;htim6.Init.Prescaler = 1;htim6.Init.CounterMode = TIM_COUNTERMODE_UP;htim6.Init...

RRajb.1 · 2020-11-30

Hi,We are using STM32F746ZET6.we have to calculate input frequency on 5 pins from 40khz to 0.01hz.currently we are using 50 micro seconds timer and at every timer interrupt we are processing frequency calculation based on the polling of the pin stat...

RRajb.1 · 2020-12-31

Thanks KnarfB for the quick response,I think I am able to access DWT registers now, but I am still not getting how to use it for getting count at real time?Is it correct what I am planning to do?this is for just basic understanding. uint32_t curr_ti...

RRajb.1 · 2020-12-22

Thanks clive for quick response,I am not getting your point can you explain little bit more.or you mean to say I should use timer input capture to measure frequency?

RRajb.1 · 2020-12-22

Hi Clive,Thanks for the response but I will not able to do what I need using hardware.My main goal is to read frequency of 1Hz - 40khz on 5 pins.so even if I use interrupt than it will keep giving interrupt. I am using 50us timer and in that ISR I a...

RRajb.1 · 2020-12-22

Hi TDK,I have configured one timer as input capture and on that pin I am giving different - different frequencies, so for 1000hz I should get 1000 count(number of rising edge). and I have one timer which is running at 50us so I am deriving 1 second o...

RRajb.1 · 2020-12-21

Hi TDK,Thanks for the quick response.will give you the info what you needed, but for more celerity I am attaching the clock configuration in my post.

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Need a counter to count in micro seconds

Issue with microseconds delay with timer

How to calculate frequency of input signal?

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