PWM Resolution on pin 10 and 11 different?!

meijoa
New Member

Posts: 10

PWM Resolution on pin 10 and 11 different?! Feb 21, 2018 18:11:22 GMT

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Post by meijoa on Feb 21, 2018 18:11:22 GMT

I used Pin 10 and 11 as PWM for dimming Background LEDs of a display. Both get "analogWrite(10, Dimmwert)" and "analogWrite(11, Dimmwert)" the same way and the same time. Pin 10 behaves normal but Pin 11 seems to have much higher resolution, with oscilloscope I measured only VERY short pulses which double in width when value is changed from 128 to 255. Is Pin 11 higher resolution, I didnt find anything in the Manual?

Admin Administrator Posts: 713	PWM Resolution on pin 10 and 11 different?! Feb 22, 2018 11:08:54 GMT Quote Select Post Deselect Post Link to Post Back to Top Post by Admin on Feb 22, 2018 11:08:54 GMT Hi, I have checked the PWM pins and they all seem to be OK! There is a test program for this in the TC275 Examples library!

meijoa New Member Posts: 10	PWM Resolution on pin 10 and 11 different?! Mar 12, 2018 13:48:37 GMT Quote Select Post Deselect Post Link to Post Back to Top Post by meijoa on Mar 12, 2018 13:48:37 GMT Hi, found the Problem. I did not include the header files! The compiler did not give any warning and generated the file. But it didnt work properly.

PWM Resolution on pin 10 and 11 different?!

Post by meijoa on Feb 21, 2018 18:11:22 GMT

Post by Admin on Feb 22, 2018 11:08:54 GMT

Post by meijoa on Mar 12, 2018 13:48:37 GMT