@Mister_e,
Quote Originally Posted by mister_e View Post
The above ought to work
Ça veut dire que mon code devrait être bon?

I have only one fixed dutycycle. To modify the volume, I vary the current on the transistor's base.

@HankMcSpank,
Yup, I scoped them all and I have never a signal on P1B (PORTC.4)