TA0 (CCR0) can't be used for "real" hardware PWM. It can provide 50% duty but that's it. This is what the User Guide means by "Output modes 2, 3, 6, and 7 are not useful for output unit 0, because EQUx = EQU0." [Ref UG (SLAU056L) Sec 15.2.5, second paragraph…
