diff options
Diffstat (limited to 'source/lang/api/analogwrite.rst')
| -rw-r--r-- | source/lang/api/analogwrite.rst | 23 |
1 files changed, 11 insertions, 12 deletions
diff --git a/source/lang/api/analogwrite.rst b/source/lang/api/analogwrite.rst index 9147b96..e789305 100644 --- a/source/lang/api/analogwrite.rst +++ b/source/lang/api/analogwrite.rst @@ -65,12 +65,12 @@ This will convert values in the range 0-255 to values in the range which control PWM output. See the :ref:`timers reference <timers>` for more information. -Another fix is to consult the :ref:`pin mapping mega table -<pin-mapping-mega-table>` to find the timer which controls PWM on the -pin you're using, then set that Timer's overflow to 255. Subsequent -calls to analogWrite() should work as on the Arduino (with the same -loss of precision). Note, however, that that affects the overflow for -the **entire timer**, so other code relying on that timer (such as any +Another fix is to consult your board's :ref:`pin maps <gpio-pin-maps>` +to find the timer which controls PWM on the pin you're using, then set +that Timer's overflow to 255. Subsequent calls to analogWrite() +should work as on the Arduino (with the same loss of precision). +Note, however, that that affects the overflow for the **entire +timer**, so other code relying on that timer (such as any :ref:`interrupts <lang-attachinterrupt>` the timer controls) will likely need to be modified as well. @@ -140,9 +140,9 @@ If your application definitely requires Arduino's PWM frequency, then the steps are: 1. Figure out which :ref:`timer <lang-hardwaretimer>` controls PWM - output on your pin (\ :ref:`this table <pwm-timer-table>` is your - friend here). Let's say it's ``Timern``\ , where ``n`` is some - number 1, 2, 3, or 4. + output on your pin (\ :ref:`your board's Timer Pin Map + <gpio-pin-maps>` is your friend here). Let's say it's ``Timern``\ + , where ``n`` is some number 1, 2, 3, or 4. 2. Call ``Timern.setPeriod(2041)``\ . This will set the timer's period to approximately 2041 microseconds, which is a frequency of @@ -154,7 +154,7 @@ timer. The important examples are :ref:`timer interrupts <lang-hardwaretimer-attachinterrupt>` and :ref:`PWM <timers-pwm-conflicts>`\ . -See also +See Also -------- - :ref:`Maple PWM tutorial <pwm>` @@ -169,5 +169,4 @@ See also Maple uses 2 bytes of memory, and an unsigned (i.e., nonnegative) integer with size 2 bytes can hold the values between 0 and 65,535. - -.. include:: cc-attribution.txt +.. include:: /arduino-cc-attribution.txt |