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//go:build nano_rp2040
// +build nano_rp2040
// This contains the pin mappings for the Arduino Nano RP2040 Connect board.
//
// Sometimes the board is not detected even when the board is connected to your computer.
// To solve this, place a jumper wire between the REC and GND pins, then connect the board to your computer.
//
// For more information, see: https://store.arduino.cc/nano-rp2040-connect
// Also
// - Datasheets: https://docs.arduino.cc/hardware/nano-rp2040-connect
// - Nano RP2040 Connect technical reference: https://docs.arduino.cc/tutorials/nano-rp2040-connect/rp2040-01-technical-reference
//
package machine
import (
"device/rp"
"runtime/interrupt"
)
// Digital Pins
const (
D2 Pin = GPIO25
D3 Pin = GPIO15
D4 Pin = GPIO16
D5 Pin = GPIO17
D6 Pin = GPIO18
D7 Pin = GPIO19
D8 Pin = GPIO20
D9 Pin = GPIO21
D10 Pin = GPIO5
D11 Pin = GPIO7
D12 Pin = GPIO4
D13 Pin = GPIO6
D14 Pin = GPIO26
D15 Pin = GPIO27
D16 Pin = GPIO28
D17 Pin = GPIO29
D18 Pin = GPIO12
D19 Pin = GPIO13
)
// Analog pins
const (
A0 Pin = ADC0
A1 Pin = ADC1
A2 Pin = ADC2
A3 Pin = ADC3
)
// Onboard LED
const (
LED = GPIO6
)
// I2C pins
const (
I2C0_SDA_PIN Pin = GPIO12
I2C0_SCL_PIN Pin = GPIO13
I2C1_SDA_PIN Pin = GPIO18
I2C1_SCL_PIN Pin = GPIO19
)
// SPI pins. SPI1 not available on Nano RP2040 Connect.
const (
SPI0_SCK_PIN Pin = GPIO6
SPI0_SDO_PIN Pin = GPIO7
SPI0_SDI_PIN Pin = GPIO4
// GPIO22 does not have SPI functionality so we set it to avoid interfering with NINA.
SPI1_SCK_PIN Pin = GPIO22
SPI1_SDO_PIN Pin = GPIO22
SPI1_SDI_PIN Pin = GPIO22
)
var (
NINA_SPI = SPI1
)
// NINA-W102 Pins
const (
NINA_SCK Pin = GPIO14
NINA_SDO Pin = GPIO11
NINA_SDI Pin = GPIO8
NINA_CS Pin = GPIO9
NINA_ACK Pin = GPIO10
NINA_GPIO0 Pin = GPIO2
NINA_RESETN Pin = GPIO3
NINA_TX Pin = GPIO9
NINA_RX Pin = GPIO8
)
// Onboard crystal oscillator frequency, in MHz.
const (
xoscFreq = 12 // MHz
)
// USB CDC identifiers
// https://github.com/arduino/ArduinoCore-mbed/blob/master/variants/NANO_RP2040_CONNECT/pins_arduino.h
const (
usb_STRING_PRODUCT = "Nano RP2040 Connect"
usb_STRING_MANUFACTURER = "Arduino"
)
var (
usb_VID uint16 = 0x2341
usb_PID uint16 = 0x005e
)
// UART pins
const (
UART0_TX_PIN = GPIO0
UART0_RX_PIN = GPIO1
UART_TX_PIN = UART0_TX_PIN
UART_RX_PIN = UART0_RX_PIN
)
// UART on the RP2040
var (
UART0 = &_UART0
_UART0 = UART{
Buffer: NewRingBuffer(),
Bus: rp.UART0,
}
)
var DefaultUART = UART0
func init() {
UART0.Interrupt = interrupt.New(rp.IRQ_UART0_IRQ, _UART0.handleInterrupt)
}
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