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Diffstat (limited to 'source/pwm.rst')
| -rw-r--r-- | source/pwm.rst | 26 |
1 files changed, 25 insertions, 1 deletions
diff --git a/source/pwm.rst b/source/pwm.rst index 178d103..42dc1a5 100644 --- a/source/pwm.rst +++ b/source/pwm.rst @@ -114,7 +114,7 @@ Function Reference .. _pwm-overflow: -``Timer1.setOverflow(overflow)`` +``Timer[1,2,3,4].setOverflow(overflow)`` This function sets the period ("reload" or "overflow") value for an entire PWM timer bank. The value is 16bit (0 to 65535) and @@ -147,6 +147,30 @@ Function Reference This function is normally called once from, `setup()`_, but the timer can be reconfigured with a new prescaler at any time. + * Configure the prescaler and overflow values to generate a timer + * reload with a period as close to the given number of + * microseconds as possible. + * + * The return value is the overflow, which may be used to set + * channel compare values. However, if a clock that fires an + * interrupt every given number of microseconds is all that is + * desired, and the relative "phases" are unimportant, channel + * compare values may all be set to 1. + +``Timer[1,2,3,4].setPeriod(period_in_microseconds)`` + + Configure the prescaler and overflow values to generate a timer + reload with a period as close to the given number of microseconds + as possible. + + The return value is the overflow, which may be used to set channel + compare values. However, if a clock that fires an interrupt every + given number of microseconds is all that is desired, and the + relative "phases" are unimportant, channel compare values may all + be set to 1. + + + Recommended Reading ------------------- |