3fa926c512
Pin mode and pad numbers are automatically calculated from the pin numbers, returning an error if no pinout could be found.
93 строки
1,3 КиБ
Go
93 строки
1,3 КиБ
Go
// +build sam,atsamd21,trinket_m0
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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 = PA08 // PWM available
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D1 = PA02
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D2 = PA09 // PWM available
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D3 = PA07 // PWM available / UART0 RX
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D4 = PA06 // PWM available / UART0 TX
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D13 = PA10 // LED
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)
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// Analog pins
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const (
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A0 = D1
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A1 = D2
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A2 = D0
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A3 = D3
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A4 = D4
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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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// UART1 pins
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const (
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UART_TX_PIN = D4
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UART_RX_PIN = D3
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)
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// UART1 on the Trinket M0.
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var (
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UART1 = UART{Bus: sam.SERCOM1_USART,
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Buffer: NewRingBuffer(),
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Mode: PinSERCOM,
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IRQVal: sam.IRQ_SERCOM1,
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}
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)
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//go:export SERCOM1_IRQHandler
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func handleUART1() {
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defaultUART1Handler()
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}
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// SPI pins
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const (
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SPI0_SCK_PIN = D3
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SPI0_MOSI_PIN = D4
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SPI0_MISO_PIN = D2
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)
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// SPI on the Trinket M0.
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var (
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SPI0 = SPI{
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Bus: sam.SERCOM0_SPI,
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SERCOM: 0,
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}
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)
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// I2C pins
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const (
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SDA_PIN = D0 // SDA
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SCL_PIN = D2 // SCL
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)
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// I2C on the Trinket M0.
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var (
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I2C0 = I2C{Bus: sam.SERCOM2_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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// I2S pins
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const (
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I2S_SCK_PIN = PA10
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I2S_SD_PIN = PA08
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I2S_WS_PIN = NoPin // TODO: figure out what this is on Trinket M0.
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)
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