31d3ac725f
This commit does the same thing as https://github.com/tinygo-org/tinygo/pull/597 but for samd51 series chips. Pin mode and pad numbers are automatically calculated from pin numbers, returning an error if no valid pinout is possible.
89 строки
1,5 КиБ
Go
89 строки
1,5 КиБ
Go
// +build sam,atsamd51,feather_m4
|
|
|
|
package machine
|
|
|
|
import "device/sam"
|
|
|
|
// used to reset into bootloader
|
|
const RESET_MAGIC_VALUE = 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
|
|
D8 = PB03 // 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
|
|
)
|
|
|
|
// UART0 aka USBCDC pins
|
|
const (
|
|
USBCDC_DM_PIN = PA24
|
|
USBCDC_DP_PIN = PA25
|
|
)
|
|
|
|
// UART1 pins
|
|
const (
|
|
UART_TX_PIN = D1
|
|
UART_RX_PIN = D0
|
|
)
|
|
|
|
// UART2 pins
|
|
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]
|
|
)
|
|
|
|
// I2C on the Feather M4.
|
|
var (
|
|
I2C0 = I2C{Bus: sam.SERCOM2_I2CM,
|
|
SDA: SDA_PIN,
|
|
SCL: SCL_PIN,
|
|
PinMode: PinSERCOM}
|
|
)
|
|
|
|
// SPI pins
|
|
const (
|
|
SPI0_SCK_PIN = D25 // SCK: SERCOM1/PAD[1]
|
|
SPI0_MOSI_PIN = D24 // MOSI: SERCOM1/PAD[3]
|
|
SPI0_MISO_PIN = D23 // MISO: SERCOM1/PAD[2]
|
|
)
|
|
|
|
// SPI on the Feather M4.
|
|
var (
|
|
SPI0 = SPI{
|
|
Bus: sam.SERCOM1_SPIM,
|
|
SERCOM: 1,
|
|
}
|
|
)
|