Timer3 Interrupt with compare with pin toggle - time is varying

RE: Timer3 Interrupt with compare with pin toggle - time is varying

ricardo.oliveira — Fri, 05 Jul 2024 12:31:56 GMT

thanks!

RE: Timer3 Interrupt with compare with pin toggle - time is varying

Sigurd — Fri, 05 Jul 2024 12:15:17 GMT

[quote user="ricardo.oliveira"]What is not clear for me is if the timer resets after compare interruption by itself or if it keeps counting until overflow it's limits[/quote]

since you are using NRF_TIMER_SHORT_COMPARE3_CLEAR_MASK , it's configured in HW to clear/reset itself when the compare3 event happens.

RE: Timer3 Interrupt with compare with pin toggle - time is varying

ricardo.oliveira — Fri, 05 Jul 2024 12:03:29 GMT

Hi, thanks for replying.
What is not clear for me is if the timer resets after compare interruption by itself or if it keeps counting until overflow it's limits (for example, if it's set to 16 bits, will it count till 65535 even after compare interrupt?)

RE: Timer3 Interrupt with compare with pin toggle - time is varying

Sigurd — Tue, 02 Jul 2024 12:28:34 GMT

Hi!

IRQ latency will vary depending on if there are other interrupts happening.

If you want highest possible precision, use GPIOTE+TIMER+PPI to do the toggling.