Arduino ZERO timer interrupts

Hardware Arduino Zero
24

Hi MartinL,

It's also possible to change the frequency of generic clock (GCLK) that feeds the timers. There are 8 generic clocks: 0..3 are used by the Zero's core, but 4..7 are free.

Thanks for this info. I am successful in using GCLKs 5-7, but GLCK 4 seem used by Arduino too. When I used it to clock one of the TC modules, I always get a zero value when reading the COUNT register. If I change the clock source to GCLK 5 to 7, it seem to work fine. So, I am not sure now if GCLK4 is free? :confused:

Thanks,
Ruch