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Trinket M0 pins 3 and 4 as well as Gemma M0 pin 2 do not work #44
I'm opening this issue myself to highlight a known problem. I cannot get PWM output on Trinket M0 pin 3. It is connected to hardware pin PA07 which is identical to pin 9 on Arduino Zero, Arduino M0 Pro, and Adafruit Feather M0 boards all of which work. But for some reason PA07 on the Trinket M0 does not work. Similarly Trinket M0 pin 4 is connected to hardware pin PA06 which is identical to pin 8 on the Arduino Zero and Arduino M0 Pro and those work perfectly but not on the Trinket M0.
The Gemma M0 should support PWM on its pin 2 but I cannot get it to work. It's connected to hardware pin PA05 which I have not used elsewhere but the code should still work.
Anyone with suggestions your help is much appreciated. We went ahead and released the code because pin 0 works okay on both boards and 2 works okay on the Trinket M0.