search

CAP1Sup / Intellistep

A rework of the terribly coded firmware from the BTT S42B v2 boards
GNU General Public License v3.0
45 stars 10 forks source link

Measure frequency(period) of input step pulses #95

Open IhorNehrutsa opened 2 years ago

IhorNehrutsa commented 2 years ago

Is it possible to measure frequency(period) of input step pulses on fly by hardware counters? This allow to continue correction timer with proper(last input step) frequency(period).

CAP1Sup commented 2 years ago

I don't think so. I did a large amount of research into the timers and I don't remember ever coming across a period counter. We could do something with software though, it's not too hard, especially considering that everything is perfectly correct with the counter

xerootg commented 2 years ago

Yeah, you should be able to measure durations in a timer. It's gonna be dependent on what pin you want to count on though... Tim2 can definitely do it, but that's currently counting pulses. It's not a huge jump to say that frequency is pulses over time, so maybe that's a starting point? Do you have a copy of the full manual for the stm32f1xx?

On Fri, Aug 6, 2021, 07:44 Christian Piper @.***> wrote:

I don't think so. I did a large amount of research into the timers and I don't remember ever coming across a period counter. We could do something with software though, it's not too hard, especially considering that everything is perfectly correct with the counter

— You are receiving this because you are subscribed to this thread. Reply to this email directly, view it on GitHub https://github.com/CAP1Sup/Intellistep/issues/95#issuecomment-894270710, or unsubscribe https://github.com/notifications/unsubscribe-auth/AA6S6SV3YQCLXV63FDMDBGLT3PRKXANCNFSM5BVYURUQ . Triage notifications on the go with GitHub Mobile for iOS https://apps.apple.com/app/apple-store/id1477376905?ct=notification-email&mt=8&pt=524675 or Android https://play.google.com/store/apps/details?id=com.github.android&utm_campaign=notification-email .