Black_Wolf:
OK, it's run...
Chinese clone with chinese shematics...
Sold as M0, and on shematics seems to have the zero pinout. I have changed the bootloader, but the schematics was wrong. It's a M0 !
TCC0[0] is on pin 2...Sorry !
that what be my next bet
M0 TCC0 pins 2,3,6,7 TCC1 pins 8,9
Zero TCC0 pins 4,3,6,7,12 TCC1 8,9
MKR (Zero) TCC0 pins A3,A4,6,7 TCC1 2,3