mirror of
https://github.com/tinygo-org/tinygo.git
synced 2026-08-20 04:19:04 +00:00
Ayke van Laethem
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.
119 lines
2.1 KiB
Go
119 lines
2.1 KiB
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{Bus: sam.SERCOM5_I2CM,
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SDA: SDA_PIN,
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SCL: SCL_PIN,
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PinMode: PinSERCOMAlt}
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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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