DISABLE TIMER2 ARDUINO MEGA ADK

Development Tools IDE 1.x
1

Hello everyone,
i'm a new subscriber and i'd like to have some information about the timers in ARDUINO MEGA.
I have ARDUINO MEGA ADK and i know that the pin 10 is linked to the timer2 of the microprocessor.
I can use the timer2 to generate a PWM signal with a specific frequency, for example i'm using this code:

 pinMode(10, OUTPUT);
  TCCR2A = _BV(COM2A0) | _BV(COM2B1) | _BV(WGM21) | _BV(WGM20);
  TCCR2B = _BV(WGM22) | _BV(CS00);
  OCR2A = 200;
  OCR2B = 50;

Now i can generate a PWM pulse from pin10 with a specific frequency (40 kHz) and a specific duty cicle which will go during all the loop subfunction (so it will never stop).
The question is: can i turn off the PWM pulse after i have generate it?
I can't find any function that could disable the timer2, i know that i can set pin10 as INPUT in order to stop the PWM signal but for my project i need to maintain the pin10 as output.
Can you help me?
Thanks everyone.

2

Yes, just unset the COM2A0 in TCCR2A to disable the output compare on pin 10.

You realize you're also generating output on pin9 because you have COM2B1 in TCCR2A set as well. See the datasheet for details.

You can also turn off the timer entirely by setting the CS bits in TCCR2B. Again, see the datasheet for details.

3

It works.
Thank you very much