PROBLEM: STM32F4 External Pulse counting by using HAL Libraries

waheed901 · ‎2015-08-12

Posted on August 13, 2015 at 07:26

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Amel NASRI · ‎2015-08-13

Posted on August 13, 2015 at 15:15

Hi w.a,

I think that the counting has to be done in the call back of the timer's IRQ handler.

You may refer to the example STM32Cube_FW_F4_V1.7.0\Projects\STM324xG_EVAL\Examples\TIM\TIM_InputCapture to get some insight.

-Mayla-

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Tesla DeLorean · ‎2015-08-13

Posted on August 13, 2015 at 17:56

He's NOT asking about Input Capture, which btw has some grave math issues.

What's missing are External Clock Source examples for the TIM, using HAL

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waheed901 · ‎2015-08-13

Posted on August 14, 2015 at 03:57

Thanks Mayla and Clive for the replies:

Mayla, I have gone through the inputcapture program, in fact I am using that for frequency counting by using internal clock on the interrupt generated by the external signals, but this project is some what different, I want to have just counts of the external rising pulses but unable to configure by using HAL libraries. I am just a starter to board things, so need step by step guidance/examples to understand and implement things.

Clive is right, HAL's examples and guidance is some what limited, while there are lot many examples/forums/posts of Firmware available.