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//go:build circuitplay_express
package machine
// used to reset into bootloader
const resetMagicValue = 0xf01669ef
// GPIO Pins
const (
D0 = PB09
D1 = PB08
D2 = PB02
D3 = PB03
D4 = PA28
D5 = PA14
D6 = PA05
D7 = PA15
D8 = PB23
D9 = PA06
D10 = PA07
D11 = NoPin // does not seem to exist
D12 = PA02
D13 = PA17 // PWM available
)
// Analog Pins
const (
A0 = PA02 // ADC/AIN[0]
A1 = PA05 // PWM available, also ADC/AIN[5]
A2 = PA06 // PWM available, also ADC/AIN[6]
A3 = PA07 // PWM available, also ADC/AIN[7]
A4 = PB03 // PORTB
A5 = PB02 // PORTB
A6 = PB09 // PORTB
A7 = PB08 // PORTB
A8 = PA11 // ADC/AIN[19]
A9 = PA09 // ADC/AIN[17]
A10 = PA04
)
const (
LED = D13
NEOPIXELS = D8
WS2812 = D8
BUTTONA = D4
BUTTONB = D5
SLIDER = D7 // built-in slide switch
BUTTON = BUTTONA
BUTTON1 = BUTTONB
LIGHTSENSOR = A8
TEMPSENSOR = A9
PROXIMITY = A10
)
// USBCDC pins (logical UART0)
const (
USBCDC_DM_PIN = PA24
USBCDC_DP_PIN = PA25
)
// UART0 pins (logical UART1)
const (
UART_TX_PIN = PB08 // PORTB
UART_RX_PIN = PB09 // PORTB
)
// UART1 on the Circuit Playground Express.
var (
UART1 = &sercomUSART4
DefaultUART = UART1
)
// I2C pins
const (
SDA_PIN = PB02 // I2C0 external
SCL_PIN = PB03 // I2C0 external
SDA1_PIN = PA00 // I2C1 internal
SCL1_PIN = PA01 // I2C1 internal
)
// I2C on the Circuit Playground Express.
var (
I2C0 = sercomI2CM5 // external device
I2C1 = sercomI2CM1 // internal device
)
// SPI pins (internal flash)
const (
SPI0_SCK_PIN = PA21 // SCK: SERCOM3/PAD[3]
SPI0_SDO_PIN = PA20 // SDO: SERCOM3/PAD[2]
SPI0_SDI_PIN = PA16 // SDI: SERCOM3/PAD[0]
)
// SPI on the Circuit Playground Express.
var SPI0 = sercomSPIM3
// I2S pins
const (
I2S_SCK_PIN = PA10
I2S_SD_PIN = PA08
I2S_WS_PIN = NoPin // no WS, instead uses SCK to sync
)
// USB CDC identifiers
const (
usb_STRING_PRODUCT = "Adafruit Circuit Playground Express"
usb_STRING_MANUFACTURER = "Adafruit"
)
var (
usb_VID uint16 = 0x239A
usb_PID uint16 = 0x8018
)
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