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//go:build sam && atsamd21 && arduino_zero
package machine
// used to reset into bootloader
const resetMagicValue = 0x07738135
// GPIO Pins - Digital Low
const (
D0 = PA11 // RX
D1 = PA10 // TX
D2 = PA14
D3 = PA09 // PWM available
D4 = PA08 // PWM available
D5 = PA15 // PWM available
D6 = PA20 // PWM available
D7 = PA21
)
// GPIO Pins - Digital High
const (
D8 = PA06 // PWM available
D9 = PA07 // PWM available
D10 = PA18 // PWM available
D11 = PA16 // PWM available
D12 = PA19 // PWM available
D13 = PA17 // PWM available
)
// ADC pins
const (
AREF Pin = PA03
ADC0 Pin = PA02
ADC1 Pin = PB08
ADC2 Pin = PB09
ADC3 Pin = PA04
ADC4 Pin = PA05
ADC5 Pin = PB02
)
// LEDs on the Arduino Zero
const (
LED = LED1
LED1 Pin = D13
LED2 Pin = PA27 // TX LED
LED3 Pin = PB03 // RX LED
)
// SPI pins - EDBG connected
const (
SPI0_SDO_PIN Pin = PA16 // MOSI: SERCOM1/PAD[0]
SPI0_SDI_PIN Pin = PA19 // MISO: SERCOM1/PAD[2]
SPI0_SCK_PIN Pin = PA17 // SCK: SERCOM1/PAD[3]
)
// SPI pins (Legacy ICSP)
const (
SPI1_SDO_PIN Pin = PB10 // MOSI: SERCOM4/PAD[2] - Pin 4
SPI1_SDI_PIN Pin = PA12 // MISO: SERCOM4/PAD[0] - Pin 1
SPI1_SCK_PIN Pin = PB11 // SCK: SERCOM4/PAD[3] - Pin 3
)
// I2C pins - EDBG connected
const (
SDA_PIN Pin = PA22 // SDA: SERCOM3/PAD[0] - Pin 20
SCL_PIN Pin = PA23 // SCL: SERCOM3/PAD[1] - Pin 21
)
// I2S pins - might not be exposed
const (
I2S_SCK_PIN Pin = PA10
I2S_SDO_PIN Pin = PA07
I2S_SDI_PIN = NoPin
I2S_WS_PIN Pin = PA11
)
// UART0 pins - EDBG connected
const (
UART_RX_PIN Pin = D0
UART_TX_PIN Pin = D1
)
// 'native' USB port pins
const (
USBCDC_DM_PIN Pin = PA24
USBCDC_DP_PIN Pin = PA25
)
// USB CDC identifiers
const (
usb_STRING_PRODUCT = "Arduino Zero"
usb_STRING_MANUFACTURER = "Arduino LLC"
usb_VID uint16 = 0x2341
usb_PID uint16 = 0x804d
)
// 32.768 KHz Crystal
const (
XIN32 Pin = PA00
XOUT32 Pin = PA01
)
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