109 строки
1,8 КиБ
Go
109 строки
1,8 КиБ
Go
//go:build kb2040
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package machine
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import (
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"device/rp"
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"runtime/interrupt"
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)
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// Onboard crystal oscillator frequency, in MHz.
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const xoscFreq = 12 // MHz
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// GPIO Pins
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const (
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D0 = GPIO0
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D1 = GPIO1
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D2 = GPIO2
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D3 = GPIO3
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D4 = GPIO4
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D5 = GPIO5
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D6 = GPIO6
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D7 = GPIO7
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D8 = GPIO8
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D9 = GPIO9
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D10 = GPIO10
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)
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// Analog pins
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const (
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A0 = GPIO26
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A1 = GPIO27
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A2 = GPIO28
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A3 = GPIO29
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)
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// Note: there is no user-controllable LED on the KB2040 board
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// const LED = notConnected
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// I2C Pins.
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const (
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I2C0_SDA_PIN = GPIO12
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I2C0_SCL_PIN = GPIO13
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I2C1_SDA_PIN = GPIO2
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I2C1_SCL_PIN = GPIO3
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SDA_PIN = I2C0_SDA_PIN
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SCL_PIN = I2C0_SCL_PIN
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)
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// SPI default pins
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const (
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// Default Serial Clock Bus 0 for SPI communications
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SPI0_SCK_PIN = GPIO18
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// Default Serial Out Bus 0 for SPI communications
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SPI0_SDO_PIN = GPIO19 // Tx
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// Default Serial In Bus 0 for SPI communications
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SPI0_SDI_PIN = GPIO20 // Rx
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// Default Serial Clock Bus 1 for SPI communications
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SPI1_SCK_PIN = GPIO26
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// Default Serial Out Bus 1 for SPI communications
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SPI1_SDO_PIN = GPIO27 // Tx
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// Default Serial In Bus 1 for SPI communications
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SPI1_SDI_PIN = GPIO28 // Rx
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)
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// UART pins
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const (
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UART0_TX_PIN = GPIO0
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UART0_RX_PIN = GPIO1
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UART1_TX_PIN = GPIO8
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UART1_RX_PIN = GPIO9
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UART_TX_PIN = UART0_TX_PIN
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UART_RX_PIN = UART0_RX_PIN
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)
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// UART on the RP2040
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var (
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UART0 = &_UART0
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_UART0 = UART{
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Buffer: NewRingBuffer(),
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Bus: rp.UART0,
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}
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UART1 = &_UART1
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_UART1 = UART{
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Buffer: NewRingBuffer(),
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Bus: rp.UART1,
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}
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)
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var DefaultUART = UART0
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func init() {
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UART0.Interrupt = interrupt.New(rp.IRQ_UART0_IRQ, _UART0.handleInterrupt)
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UART1.Interrupt = interrupt.New(rp.IRQ_UART1_IRQ, _UART1.handleInterrupt)
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}
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// USB identifiers
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const (
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usb_STRING_PRODUCT = "KB2040"
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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 = 0x8106
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)
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