77ec9b6369
Do it all at once in preparation for Go 1.18 support. To make this commit, I've simply modified the `fmt-check` Makefile target to rewrite files instead of listing the differences. So this is a fully mechanical change, it should not have introduced any errors.
110 строки
1,9 КиБ
Go
110 строки
1,9 КиБ
Go
//go:build sam && atsamd21 && itsybitsy_m0
|
|
// +build sam,atsamd21,itsybitsy_m0
|
|
|
|
package machine
|
|
|
|
// used to reset into bootloader
|
|
const RESET_MAGIC_VALUE = 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
|
|
)
|