129 строки
2,3 КиБ
Go
129 строки
2,3 КиБ
Go
// +build sam,atsamd51,metro_m4_airlift
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package machine
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import "device/sam"
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// used to reset into bootloader
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const RESET_MAGIC_VALUE = 0xf01669ef
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// GPIO Pins
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const (
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D0 = PA23 // UART0 RX/PWM available
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D1 = PA22 // UART0 TX/PWM available
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D2 = PB17 // PWM available
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D3 = PB16 // PWM available
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D4 = PB13 // PWM available
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D5 = PB14 // PWM available
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D6 = PB15 // PWM available
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D7 = PB12 // PWM available
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D8 = PA21 // PWM available
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D9 = PA20 // PWM available
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D10 = PA18 // can be used for PWM or UART1 TX
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D11 = PA19 // can be used for PWM or UART1 RX
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D12 = PA17 // PWM available
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D13 = PA16 // PWM available
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D40 = PB22 // built-in neopixel
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)
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// Analog pins
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const (
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A0 = PA02 // ADC/AIN[0]
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A1 = PA05 // ADC/AIN[2]
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A2 = PB06 // ADC/AIN[3]
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A3 = PB00 // ADC/AIN[4] // NOTE: different between "airlift" and non-airlift versions
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A4 = PB08 // ADC/AIN[5]
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A5 = PB09 // ADC/AIN[10]
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)
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const (
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LED = D13
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)
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// UART0 aka USBCDC pins
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const (
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USBCDC_DM_PIN = PA24
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USBCDC_DP_PIN = PA25
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)
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const (
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UART_TX_PIN = D1
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UART_RX_PIN = D0
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)
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// Note: UART1 is on SERCOM3, defined in machine_atsamd51.go
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const (
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NINA_CS = PA15
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NINA_ACK = PB04
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NINA_GPIO0 = PB01
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NINA_RESETN = PB05
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NINA_TX = PA04
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NINA_RX = PA07
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NINA_RTS = PB23
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)
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// UART2 is on SERCOM0, defined in machine_atsamd51.go, and connects to the
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// onboard ESP32-WROOM chip.
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// I2C pins
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const (
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SDA_PIN = PB02 // SDA: SERCOM5/PAD[0]
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SCL_PIN = PB03 // SCL: SERCOM5/PAD[1]
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)
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// I2C on the Metro M4.
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var (
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I2C0 = I2C{
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Bus: sam.SERCOM5_I2CM,
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SERCOM: 5,
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}
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)
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// SPI pins
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const (
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SPI0_SCK_PIN = PA13 // SCK: SERCOM2/PAD[1]
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SPI0_MOSI_PIN = PA12 // MOSI: SERCOM2/PAD[0]
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SPI0_MISO_PIN = PA14 // MISO: SERCOM2/PAD[2]
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NINA_MOSI = SPI0_MOSI_PIN
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NINA_MISO = SPI0_MISO_PIN
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NINA_SCK = SPI0_SCK_PIN
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)
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// SPI on the Metro M4.
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var (
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SPI0 = SPI{
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Bus: sam.SERCOM2_SPIM,
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SERCOM: 2,
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}
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NINA_SPI = SPI0
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)
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const (
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SPI1_SCK_PIN = D12 // MISO: SERCOM1/PAD[1]
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SPI1_MOSI_PIN = D11 // MOSI: SERCOM1/PAD[3]
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SPI1_MISO_PIN = D13 // SCK: SERCOM1/PAD[0]
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)
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// SPI1 on the Metro M4 on pins 11,12,13
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var (
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SPI1 = SPI{
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Bus: sam.SERCOM1_SPIM,
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SERCOM: 1,
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}
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)
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// USB CDC identifiers
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const (
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usb_STRING_PRODUCT = "Adafruit Metro M4 Airlift Lite"
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usb_STRING_MANUFACTURER = "Adafruit"
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)
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var (
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usb_VID uint16 = 0x239A
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usb_PID uint16 = 0x8037
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)
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