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//go:build feather_m4_can
package machine
import (
"device/sam"
)
// used to reset into bootloader
const resetMagicValue = 0xf01669ef
// GPIO Pins
const (
D0 = PB17 // UART0 RX/PWM available
D1 = PB16 // UART0 TX/PWM available
D4 = PA14 // PWM available
D5 = PA16 // PWM available
D6 = PA18 // PWM available
D7 = PB03 // neopixel power
D8 = PB02 // built-in neopixel
D9 = PA19 // PWM available
D10 = PA20 // can be used for PWM or UART1 TX
D11 = PA21 // can be used for PWM or UART1 RX
D12 = PA22 // PWM available
D13 = PA23 // PWM available
D21 = PA13 // PWM available
D22 = PA12 // PWM available
D23 = PB22 // PWM available
D24 = PB23 // PWM available
D25 = PA17 // PWM available
)
// Analog pins
const (
A0 = PA02 // ADC/AIN[0]
A1 = PA05 // ADC/AIN[2]
A2 = PB08 // ADC/AIN[3]
A3 = PB09 // ADC/AIN[4]
A4 = PA04 // ADC/AIN[5]
A5 = PA06 // ADC/AIN[10]
)
const (
LED = D13
NEOPIXELS = D8
WS2812 = D8
)
// USBCDC pins
const (
USBCDC_DM_PIN = PA24
USBCDC_DP_PIN = PA25
)
const (
UART_TX_PIN = D1
UART_RX_PIN = D0
)
const (
UART2_TX_PIN = A4
UART2_RX_PIN = A5
)
// I2C pins
const (
SDA_PIN = D22 // SDA: SERCOM2/PAD[0]
SCL_PIN = D21 // SCL: SERCOM2/PAD[1]
)
// SPI pins
const (
SPI0_SCK_PIN = D25 // SCK: SERCOM1/PAD[1]
SPI0_SDO_PIN = D24 // SDO: SERCOM1/PAD[3]
SPI0_SDI_PIN = D23 // SDI: SERCOM1/PAD[2]
)
// CAN pins
const (
CAN0_TX = PA22
CAN0_RX = PA23
CAN1_STANDBY = PB12
CAN1_TX = PB14
CAN1_RX = PB15
BOOST_EN = PB13 // power control of CAN1's TCAN1051HGV (H: enable)
CAN_STANDBY = CAN1_STANDBY
CAN_S = CAN1_STANDBY
CAN_TX = CAN1_TX
CAN_RX = CAN1_RX
)
// USB CDC identifiers
const (
usb_STRING_PRODUCT = "Adafruit Feather M4 CAN"
usb_STRING_MANUFACTURER = "Adafruit"
)
var (
usb_VID uint16 = 0x239A
usb_PID uint16 = 0x80CD
)
var (
UART1 = &sercomUSART5
UART2 = &sercomUSART0
)
func init() {
// turn on neopixel
D7.Configure(PinConfig{Mode: PinOutput})
D7.High()
}
// I2C on the Feather M4 CAN.
var (
I2C0 = sercomI2CM2
)
// SPI on the Feather M4 CAN.
var SPI0 = sercomSPIM1
// CAN on the Feather M4 CAN.
var (
CAN0 = CAN{
Bus: sam.CAN0,
}
CAN1 = CAN{
Bus: sam.CAN1,
}
)
var (
DefaultUART = UART1
)
|
