I'm using the stm32f0 series. I have it right now, so I'm doing it with a signal generator. I want to count every rising edge of the signal my code is as below but it is not counting prope

This topic has been closed for replies.

Lead III

Use the measured signal input as timer clock input. You cannot use capture function reasonably at 10 MHz.

My STM32 stuff on github - compact USB device stack and more: https://github.com/gbm-ii/gbmUSBdevice

Associate III

I don't quite understand what you mean, can you give an example?

Guru

How fast is the STM32 clocking?

Not counting properly? Please expand on what it is doing..

Should be using External Clock modes, probably not measuring cycles.

Tips, Buy me a coffee, or three.. PayPal VenmoUp vote any posts that you find helpful, it shows what's working..

Associate III

I expect it to count every time a rising edge in but it doesn't

Super User

> TIM_ICInitStructure.TIM_ICPrescaler = TIM_ICPSC_DIV2;

Why? (although I don't think this makes any difference in this particular case)

> TIM1->SMCR |= TIM_SMCR_SMS_2 | TIM_SMCR_SMS_1| TIM_SMCR_TS_2 | TIM_SMCR_TS_1;

That's TIM1_SMCR.SMS = 0b110 = Trigger Mode.

You probably want 0b111 = External Clock Mode 1, don't you.

Plus all the questions of TeslaDelorean.

JW

Sign up