mirror of
https://github.com/tinygo-org/tinygo.git
synced 2026-08-07 04:23:41 +00:00
Yurii Soldak
128 lines
2.0 KiB
Go
128 lines
2.0 KiB
Go
//go:build waveshare_rp2040_zero
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// This file contains the pin mappings for the Waveshare RP2040-Zero boards.
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//
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// Waveshare RP2040-Zero is a microcontroller using the Raspberry Pi RP2040 chip.
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//
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// - https://www.waveshare.com/wiki/RP2040-Zero
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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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// Digital Pins
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const (
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D0 Pin = GPIO0
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D1 Pin = GPIO1
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D2 Pin = GPIO2
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D3 Pin = GPIO3
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D4 Pin = GPIO4
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D5 Pin = GPIO5
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D6 Pin = GPIO6
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D7 Pin = GPIO7
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D8 Pin = GPIO8
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D9 Pin = GPIO9
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D10 Pin = GPIO10
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D11 Pin = GPIO11
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D12 Pin = GPIO12
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D13 Pin = GPIO13
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D14 Pin = GPIO14
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D15 Pin = GPIO15
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D16 Pin = GPIO16
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D17 Pin = GPIO17
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D18 Pin = GPIO18
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D19 Pin = GPIO19
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D20 Pin = GPIO20
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D21 Pin = GPIO21
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D22 Pin = GPIO22
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D23 Pin = GPIO23
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D24 Pin = GPIO24
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D25 Pin = GPIO25
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D26 Pin = GPIO26
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D27 Pin = GPIO27
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D28 Pin = GPIO28
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D29 Pin = GPIO29
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)
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// Analog pins
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const (
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A0 Pin = D26
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A1 Pin = D27
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A2 Pin = D28
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A3 Pin = D29
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)
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// Onboard LEDs
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const (
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NEOPIXEL = GPIO16
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)
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// I2C pins
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const (
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I2C0_SDA_PIN Pin = D0
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I2C0_SCL_PIN Pin = D1
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I2C1_SDA_PIN Pin = D2
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I2C1_SCL_PIN Pin = D3
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)
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// SPI pins
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const (
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SPI0_SCK_PIN Pin = D6
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SPI0_SDO_PIN Pin = D3
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SPI0_SDI_PIN Pin = D4
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SPI1_SCK_PIN Pin = D10
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SPI1_SDO_PIN Pin = D11
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SPI1_SDI_PIN Pin = D12
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)
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// Onboard crystal oscillator frequency, in MHz.
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const (
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xoscFreq = 12 // MHz
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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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UART1_TX_PIN = GPIO8
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UART1_RX_PIN = GPIO9
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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 CDC identifiers
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const (
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usb_STRING_PRODUCT = "RP2040-Zero"
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usb_STRING_MANUFACTURER = "Waveshare"
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)
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var (
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usb_VID uint16 = 0x2e8a
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usb_PID uint16 = 0x0003
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)
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