How to reset registers after using PWM library

Projects Programming
1

I use the PWM library to send a 440Hz tone to Pin 9. That works fine. How do I reset all the registers back to its original state? I experience problems using Softwareserial after I stop creating the tone.

e.g. StopTimersSafe();

2

You can try this:

TCCR2A = 0;
TCCR2B = 0;

If that helps, then the SoftwareSerial library has a bug.