TIM_Input_Capture_Prescaler effect

[Abdelmalek BELLOULA]

Posted on June 26, 2017 at 22:15

What is the effect of TIM_Input_Capture_Prescaler on the value of the CNT counter in the encoder mode, even if I change this value between TIM_ICPSC_DIV4 or TIM_ICPSC_DIV1 the reading of the CNT is the same

I use nucleo l476

Thank you

[Tesla DeLorean]

Posted on June 26, 2017 at 22:30

My expectation is that it would decimate the count.

Why don't you set up a simple experiment, either with GPIO or another timer, and prove to yourself what it achieves in encoder mode, and that it handles forward/backward transitions as you would expect.

I've used them for Input Capture, where I can measure 4 or 8 cycles, rather than one. Not sure I'd use it in Encode mode.