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251 octets ajoutés ,  14 octobre 2017 à 15:30
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== Mémoire Flash SPI et NeoPixel ==
 
== Mémoire Flash SPI et NeoPixel ==
As part of the 'Express' series of boards, this Feather is designed for use with CircuitPython. To make that easy, we have added two extra parts to this Feather M0: a mini NeoPixel (RGB LED) and a 2 MB SPI Flash chip
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De surcroît, la série 'Express' de la gamme Feather est conçu pour aussi utilisée avec CircuitPython. Pour faciliter les choses, Adafruit à ajouté deux éléments supplémentairessur ce Feather M0: un mini NéoPixel (LED RGB digitale) et une mémoire flash de 2 MB (sur un bus SPI).
    
{{ADFImage|FEATHER-M0-EXPRESS-Brochage-05.jpg|640px}}
 
{{ADFImage|FEATHER-M0-EXPRESS-Brochage-05.jpg|640px}}
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The '''NeoPixel''' is connected to pin #8 in Arduino, so <a href="../../../../adafruit-neopixel-uberguide">just use our NeoPixel library</a> and set it up as a single-LED strand on pin 8. The NeoPixel is powered by the 3.3V power supply but that hasn't shown to make a big difference in brightness or color. The NeoPixel is also used by the bootloader to let you know if the device has enumerated correctly (green) or USB failure (red). In CircuitPython, the LED is used to indicate the runtime status.
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La LED '''NéoPixel''' est connectée sur le broche #8 ien Arduino, vous pouvez donc utiliser [[NeoPixel-UserGuide|le bibliothèque NéoPixel]] en configurant un ruban de LED avec une seule LED. Le NéoPixel est alimenté en 3.3V mais cela n'a pas vraiment d'impact sur la couleur ou la luminosité.
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The SPI Flash is connected to 4 pins that are not brought out on the GPIO pads. This way you don't have to worry about the SPI flash colliding with other devices on the main SPI connection. Under Arduino, the FLASH '''SCK''' pin is #3, '''MISO''' is #2,  '''MOSI''' is #4, and '''CS''' is #38. If you use '''Feather M0 Express''' as your board type, you'll be able to access the Flash SPI port under '''SPI1''' - this is a fully new hardware SPI device separate from the GPIO pins on the outside edge of the Feather. In CircuitPython, the SPI flash is used natively by the interpretter and is read-only to user code, instead the Flash just shows up as the writeable disk drive!
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Le NéoPixel est également utilisé par le bootloader pour vous informer de l'état du bootloader:
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* Vert : le périphérique à été énuméré correctement sur l'interface USB
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* Rouge : erreur USB .
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En CircuitPython, la LED est utilisée pour indiquer le statut de fonctionnement.
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{{traduction}}
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La mémoire Flash SPI est connectée sur 4 broches qui ne sont pas été rendue accessibles en tant que GPIO. pins that are not brought out on the GPIO pads. This way you don't have to worry about the SPI flash colliding with other devices on the main SPI connection. Under Arduino, the FLASH '''SCK''' pin is #3, '''MISO''' is #2,  '''MOSI''' is #4, and '''CS''' is #38. If you use '''Feather M0 Express''' as your board type, you'll be able to access the Flash SPI port under '''SPI1''' - this is a fully new hardware SPI device separate from the GPIO pins on the outside edge of the Feather. In CircuitPython, the SPI flash is used natively by the interpretter and is read-only to user code, instead the Flash just shows up as the writeable disk drive!
    
== Other Pins! ==
 
== Other Pins! ==
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