Input capture Unit configuration using STM32CubeIDe

[Akhilesh30]

Hello Team,

I did not find any option to configure the Input Capture Unit for the STM32H743BIT6 board.

Could you please let me know how to do that?

Any suggestions will be helpful.

Thank you
Akhilesh

[Sarra.S]

Hello @Akhilesh30, 

Could you further detail the issue? 

Using STM32CubeMX, and selecting STM32H743BIT6 as MCU, you can configure channels with input capture mode as following: 

 

 

[Akhilesh_30]

Thank you.

I have one more question like what is the maximum frequency we can capture with one channel and using DMA Mode.

I cannot try it out since i do not have a board.

If anyone could please let me know, It would be of great help

[Sarra.S]

Hello again @Akhilesh_30, 

This depends on several factors, the timers can be clocked up to 200 MHz (assuming the maximum clock configuration), the DMA controllers can handle high-speed data transfers, but the actual speed is limited by the system clock and bus speeds 

For example, assuming the timer is running at 200 MHz and the minimum number of timer ticks required to capture an event is 4: f​max​​=​​​200 MHz/4 ​​=50 MHz