Modifications

== AnalogWrite / PWM on Feather M0 ==

== AnalogWrite / PWM on Feather M0 ==

After looking through the SAMD21 datasheet, we've found that some of the options listed in the multiplexer table don't exist on the specific chip used in the Feather M0.

After looking through the SAMD21 datasheet, it appears that some of the options listed in the multiplexer table don't exist on the specific chip used in the Feather M0.

For all SAMD21 chips, there are two peripherals that can generate PWM signals: The Timer/Counter (TC) and Timer/Counter for Control Applications (TCC). Each SAMD21 has multiple copies of each, called 'instances'.

For all SAMD21 chips, there are two peripherals that can generate PWM signals: The Timer/Counter (TC) and Timer/Counter for Control Applications (TCC). Each SAMD21 has multiple copies of each, called 'instances'.

* '''TCC[0-2],WO[0-7]'''

* '''TCC[0-2],WO[0-7]'''

En suivant les signaux vers les broches rendues disponibles sir le Feather M0, <font color="red">'''les broches suivantes ne seront pas capable de produire de signal PWM'''</font>:

* '''broche analogique A5'''

By following the signals to the pins made available on a Feather M0, <font color="red">'''the following pins would not be able to produce PWM signal'''</font>:

* '''Analog Pin A5'''

Les broches suivantes peuvent être configurées en sortie PWM (sans aucun conflit) aussi longtemps que les broches SPI, I2C et UART gardent leurs fonctions protocole:

The following pins can be configured as PWM (without conflict) as long as the SPI, I2C & UART keeps their protocol functions:

* '''Broches digitales 5, 6, 9, 10, 11, 12 et 13'''

* '''Digital pins 5, 6, 9, 10, 11, 12 et 13'''

* '''Broches analogiques A3 et A4'''

* '''Analog pins A3 et A4'''

Si seules les broches SPI gardent leur fonctions protocole, vous pouvez également faire du PWM sur les broches suivantes:

When only the SPI keeps the protocol function, you can also do PWM on the following pins:

* '''TX''' (broche digitale 1)

* '''TX''' (Digital pin 1)

* '''SDA''' (broche digitale 20)

* '''SDA''' (Digital pin 20)

== analogWrite() et gamme de valeur PWM ==

== analogWrite() et gamme de valeur PWM ==