118 строки
2,4 КиБ
Go
118 строки
2,4 КиБ
Go
//go:build thingplus_rp2040
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// +build thingplus_rp2040
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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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GP0 Pin = GPIO0 // TX
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GP1 Pin = GPIO1 // RX
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GP2 Pin = GPIO2 // SCK
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GP3 Pin = GPIO3 // COPI
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GP4 Pin = GPIO4 // CIPO
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GP6 Pin = GPIO6 // SDA
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GP7 Pin = GPIO7 // SCL (connected to GPIO23 as well)
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GP8 Pin = GPIO8 // WS2812 RGB LED
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GP9 Pin = GPIO9 // muSDcard DATA3 / CS
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GP10 Pin = GPIO10 // muSDcard DATA2
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GP11 Pin = GPIO11 // muSDcard DATA1
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GP12 Pin = GPIO12 // muSDcard DATA0 / CIPO
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GP14 Pin = GPIO14 // muSDcard CLK /SCLK
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GP15 Pin = GPIO15 // muSDcard CMD / COPI
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GP16 Pin = GPIO16 // 16
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GP17 Pin = GPIO17 // 17
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GP18 Pin = GPIO18 // 18
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GP19 Pin = GPIO19 // 19
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GP20 Pin = GPIO20 // 20
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GP21 Pin = GPIO21 // 21
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GP22 Pin = GPIO22 // 22
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GP23 Pin = GPIO23 // Connected to GPIO7
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GP25 Pin = GPIO25 // Status blue LED
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GP26 Pin = GPIO26 // ADC0
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GP27 Pin = GPIO27 // ADC1
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GP28 Pin = GPIO28 // ADC2
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GP29 Pin = GPIO29 // ADC3
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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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const LED = GPIO25
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// I2C Pins.
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const (
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I2C0_SCL_PIN = GPIO6 // N/A
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I2C0_SDA_PIN = GPIO7 // N/A
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I2C1_SDA_PIN = GPIO6
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I2C1_SCL_PIN = GPIO7
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SDA_PIN = I2C1_SDA_PIN
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SCL_PIN = I2C1_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 = GPIO2
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// Default Serial Out Bus 0 for SPI communications
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SPI0_SDO_PIN = GPIO3 // Tx
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// Default Serial In Bus 0 for SPI communications
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SPI0_SDI_PIN = GPIO4 // Rx
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// Default Serial Clock Bus 1 for SPI communications to muSDcard
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SPI1_SCK_PIN = GPIO14
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// Default Serial Out Bus 1 for SPI communications to muSDcard
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SPI1_SDO_PIN = GPIO15 // Tx
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// Default Serial In Bus 1 for SPI communications to muSDcard
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SPI1_SDI_PIN = GPIO12 // 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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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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)
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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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}
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// USB identifiers
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const (
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usb_STRING_PRODUCT = "Thing Plus RP2040"
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usb_STRING_MANUFACTURER = "SparkFun"
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)
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var (
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usb_VID uint16 = 0x1B4F
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usb_PID uint16 = 0x0026
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)
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