arduino / arduino/ArduinoCore-avr
Use hardware PWM if generating a single tone() on the right pin for the timer. [imported]
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Description
This is [Issue 632](http://code.google.com/p/arduino/issues/detail?id=632) moved from a Google Code project.
Added by 2011-09-08T21:07:23.000Z by [dmel...@gmail.com](http://code.google.com/u/107726014984682000895/).
Please review that bug for more context and additional comments, but update this bug.
Original labels: Type-Enhancement, Priority-Medium, Component-Core
### Original description
It would be cool if the tone() function used hardware (PWM) output instead of interrupt-driven output when possible. This would allow for higher maximum frequencies when using the right pins.
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