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arduino-mkr-header

Vendor: Generic or vendor-independent

Description

GPIO pins exposing on Arduino MKR headers.

The Arduino MKR layout provides two headers on both edges of the board.

* One side of the 14-pin header is analog inputs and digital signals.
  A1 to A6 is Analog input. The outside pin is AREF.
  A0 that is next to AREF used as a DAC output pin too.
  D0-D5 is a digital output.
* The other side 14-pin header is power supplies and peripheral interface.
  There are 5V and VCC power supply, GND, and RESET pin. UART, I2C,
  and SPI peripheral pins are also there. The end 2 pins are simple GPIO pins.

This binding provides a nexus mapping for 22 pins where parent pins 0
through 14 correspond to D0 through D21, and parent pins 15 through 21
correspond to A0 through A6, as depicted below.

    -  AREF                 5V       -
    15 A0/D15/DAC0          VIN      -
    16 A1/D16               VCC      -
    17 A2/D17               GND      -
    18 A3/D18               RESET    -
    19 A4/D19               D14/TX   14
    20 A5/D20               D13/RX   13
    21 A6/D21               D12/SCL  12
    0  D0                   D11/SDA  11
    1  D1                   D10/CPIO 10
    2  D2                   D9/SCK   9
    3  D3                   D8/COPI  8
    4  D4                   D7       7
    5  D5                   D6       6

Properties

Properties not inherited from the base binding file.

Name

Type

Details

gpio-map

compound

This property is required.

gpio-map-mask

compound

gpio-map-pass-thru

compound

#gpio-cells

int

Number of items to expect in a GPIO specifier

This property is required.