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Want to measure pulse width using STM32

venugopal saminathan

hi,

i want to measure pulse width from 1hz using STM32. would it be possible to use PreScaler. so please provide me some example or link for measuring pulse.

thanks in advance.

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    The STM32 provides for a PWM Input Capture mode, depending on the model and TIM used, you might need to prescale TIMCLK to get a 16-bit TIM to span 1+ seconds.

    The PWM Input Capture pairs two channels (CH1, CH2), and a reset, to provide a tick count for the period and duty of the input signal.

    For long duration, and fine granularity of the measurement, consider an STM32 with a 32-bit TIM.

    The HAL and SPL should have examples of this mode of operation, for one or more boards within a given part family.

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    The STM32 provides for a PWM Input Capture mode, depending on the model and TIM used, you might need to prescale TIMCLK to get a 16-bit TIM to span 1+ seconds.

    The PWM Input Capture pairs two channels (CH1, CH2), and a reset, to provide a tick count for the period and duty of the input signal.

    For long duration, and fine granularity of the measurement, consider an STM32 with a 32-bit TIM.

    The HAL and SPL should have examples of this mode of operation, for one or more boards within a given part family.

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