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//go:build sam && atsamd21 && itsybitsy_m0
package machine
// used to reset into bootloader
const resetMagicValue = 0xf01669ef
// GPIO Pins
const (
D0 = PA11 // UART0 RX
D1 = PA10 // UART0 TX
D2 = PA14
D3 = PA09 // PWM available
D4 = PA08 // PWM available
D5 = PA15 // PWM available
D6 = PA20 // PWM available
D7 = PA21 // PWM available
D8 = PA06 // PWM available
D9 = PA07 // PWM available
D10 = PA18 // can be used for PWM or UART1 TX
D11 = PA16 // can be used for PWM or UART1 RX
D12 = PA19 // PWM available
D13 = PA17 // PWM available
)
// Analog pins
const (
A0 = PA02 // ADC/AIN[0]
A1 = PB08 // ADC/AIN[2]
A2 = PB09 // ADC/AIN[3]
A3 = PA04 // ADC/AIN[4]
A4 = PA05 // ADC/AIN[5]
A5 = PB02 // ADC/AIN[10]
)
const (
LED = D13
)
// USBCDC pins
const (
USBCDC_DM_PIN = PA24
USBCDC_DP_PIN = PA25
)
// UART1 pins
const (
UART_TX_PIN = D10
UART_RX_PIN = D11
)
// UART1 on the ItsyBitsy M0.
var (
UART1 = &sercomUSART1
)
// I2C pins
const (
SDA_PIN = PA22 // SDA: SERCOM3/PAD[0]
SCL_PIN = PA23 // SCL: SERCOM3/PAD[1]
)
// I2C on the ItsyBitsy M0.
var (
I2C0 = sercomI2CM3
)
// SPI pins
const (
SPI0_SCK_PIN = PB11 // SCK: SERCOM4/PAD[3]
SPI0_SDO_PIN = PB10 // SDO: SERCOM4/PAD[2]
SPI0_SDI_PIN = PA12 // SDI: SERCOM4/PAD[0]
)
// SPI on the ItsyBitsy M0.
var SPI0 = sercomSPIM4
// "Internal" SPI pins; SPI flash is attached to these on ItsyBitsy M0
const (
SPI1_CS_PIN = PA27
SPI1_SCK_PIN = PB23
SPI1_SDO_PIN = PB22
SPI1_SDI_PIN = PB03
)
// "Internal" SPI on Sercom 5
var SPI1 = sercomSPIM5
// I2S pins
const (
I2S_SCK_PIN = PA10
I2S_SD_PIN = PA08
I2S_WS_PIN = NoPin // TODO: figure out what this is on ItsyBitsy M0.
)
// USB CDC identifiers
const (
usb_STRING_PRODUCT = "Adafruit ItsyBitsy M0 Express"
usb_STRING_MANUFACTURER = "Adafruit"
)
var (
usb_VID uint16 = 0x239A
usb_PID uint16 = 0x800F
)
var (
DefaultUART = UART1
)
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