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Diffstat (limited to 'docs/wipy/quickref.rst')
| -rw-r--r-- | docs/wipy/quickref.rst | 12 |
1 files changed, 4 insertions, 8 deletions
diff --git a/docs/wipy/quickref.rst b/docs/wipy/quickref.rst index a2886e78c6..6fd77a81bd 100644 --- a/docs/wipy/quickref.rst +++ b/docs/wipy/quickref.rst @@ -63,16 +63,12 @@ PWM (pulse width modulation) See :ref:`machine.Pin <machine.Pin>` and :ref:`machine.Timer <machine.Timer>`. :: from machine import Timer - from machine import Pin - - # assign GP25 to alternate function 9 (PWM) - p_out = Pin('GP25', mode=Pin.AF, alt=9) - # timer 2 in PWM mode and width must be 16 buts - tim = Timer(2, mode=Timer.PWM, width=16) + # timer 1 in PWM mode and width must be 16 buts + tim = Timer(1, mode=Timer.PWM, width=16) - # enable channel A @1KHz with a 50% duty cycle - tim_a = tim.channel(Timer.A, freq=1000, duty_cycle=50) + # enable channel A @1KHz with a 50.55% duty cycle + tim_a = tim.channel(Timer.A, freq=1000, duty_cycle=5055) ADC (analog to digital conversion) ---------------------------------- |