Engine speed fault

[David Ferguson]

Those input captures show the signal should be falling edge. It looks like you could use a hysteresis of 2V at 1000 RPM, and probably 7V at 6000 RPM and above.

Thank you for posting those.

[Juan]

It looks like you could use a hysteresis of 2V at 1000 RPM, and probably 7V at 6000 RPM and above.

I will try this setting.

What about debounce?
I have not seen hysteries or threshold noise.

[David Ferguson]

The signal looks pretty clean, for a 60 tooth trigger wheel, I might start with debounce values of (80@0rpm, 60@1000rpm, 15@6000 rpm, 10@10000). Then I adjust as recommended in the help for Engine Speed Pin Debounce.

[Juan]

The signal looks pretty clean, for a 60 tooth trigger wheel, I might start with debounce values of (80@0rpm, 60@1000rpm, 15@6000 rpm, 10@10000). Then I adjust as recommended in the help for Engine Speed Pin Debounce.

Thank you David