Glitches when toggling pin with RTC + PPI + GPIOTE and reading RTC's COUNTER

RE: Glitches when toggling pin with RTC + PPI + GPIOTE and reading RTC's COUNTER

hmolesworth — Wed, 16 Feb 2022 23:36:07 GMT

Was there any progress on this issue?

RE: Glitches when toggling pin with RTC + PPI + GPIOTE and reading RTC's COUNTER

Stian Røed Hafskjold — Thu, 20 Feb 2020 14:14:50 GMT

Ooops, I managed to delete your reply as well... Sorry about that..

Anyways, thanks for the feedback. I will make this post public again, so others can see.

RE: Glitches when toggling pin with RTC + PPI + GPIOTE and reading RTC's COUNTER

tlongeri — Fri, 14 Feb 2020 17:19:27 GMT

Thank you for checking. If you happen to know whether the counter is being incremented twice or it's just that the toggle is triggering twice I'd appreciate to know. Otherwise I'll do a test early next week when I have time.

Also, why was this made private?

(By the way, I accidentally deleted this reply and had to rewrite it, sorry for the notifications!)

RE: Glitches when toggling pin with RTC + PPI + GPIOTE and reading RTC's COUNTER

Stian Røed Hafskjold — Fri, 14 Feb 2020 15:49:56 GMT

Hi, I'm able to reproduce the behavior here using just simple hardware registers, no SDK drivers. So it does look to me like a hardware bug. I will have to run this through the hardware engineers to confirm this, and if they can suggest any workarounds.