board: Adafruit LED Glasses Driver nRF52840

src/machine/board_ledglasses_nrf52840.go

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+//go:build ledglasses_nrf52840
+
+package machine
+
+// Adafruit LED Glasses Driver - nRF52840 Sensor Board
+// https://www.adafruit.com/product/5217
+// ----------------------------------------------------------------------------
+// References:
+// https://cdn-learn.adafruit.com/assets/assets/000/105/134/original/adafruit_products_EyeLightsD_sch.png?1633457726
+// https://github.com/adafruit/Adafruit_nRF52_Arduino/blob/master/variants/ledglasses_nrf52840/variant.h
+// https://github.com/adafruit/Adafruit-EyeLights-LED-Glasses-and-Driver-PCB/blob/main/Adafruit%20EyeLights%20LED%20Glasses%20Driver.pdf
+
+const HasLowFrequencyCrystal = false
+
+// GPIO Pins
+const (
+ D2 = P0_31 // LED
+ D3 = P1_15 // NEOPIXEL
+ D4 = P0_30 // SWITCH
+ D5 = P1_08 // MICROPHONE_DATA
+ D6 = P0_07 // MICROPHONE_CLOCK
+ D8 = P0_08 // SCL
+ D9 = P0_06 // SDA
+ D20 = P0_04 // Battery
+ D22 = P0_19 // QSPI CLK
+ D23 = P0_20 // QSPI CS
+ D24 = P1_00 // QSPI Data 0
+ D25 = P0_21 // QSPI Data 1
+ D26 = P0_22 // QSPI Data 2
+ D27 = P0_23 // QSPI Data 3
+)
+
+// Analog Pins
+const (
+ A6 = D20 // Battery
+)
+
+const (
+ LED = D2
+ LED1 = LED
+ NEOPIXEL = D3
+ WS2812 = NEOPIXEL
+ SWITCH = D4
+ BUTTON = SWITCH
+
+ QSPI_SCK = D22
+ QSPI_CS = D23
+ QSPI_DATA0 = D24
+ QSPI_DATA1 = D25
+ QSPI_DATA2 = D26
+ QSPI_DATA3 = D27
+)
+
+// I2C pins
+const (
+ SDA_PIN = D9 // I2C0 external
+ SCL_PIN = D8 // I2C0 external
+)
+
+// USB CDC identifiers
+const (
+ usb_STRING_PRODUCT = "LED Glasses Driver nRF52840"
+ usb_STRING_MANUFACTURER = "Adafruit Industries LLC"
+)
+
+var (
+ usb_VID uint16 = 0x239A
+ usb_PID uint16 = 0x810E
+)
+
+// LED Glasses Driver does not have pins broken out for the peripherals below,
+// however the machine_nrf*.go implementations of I2C/SPI/etc expect the pin
+// constants to be defined, so we are defining them all as NoPin
+const (
+ UART_TX_PIN = NoPin
+ UART_RX_PIN = NoPin
+ SPI0_SCK_PIN = NoPin
+ SPI0_SDO_PIN = NoPin
+ SPI0_SDI_PIN = NoPin
+)

targets/ledglasses-nrf52840.json

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+{
+ "inherits": ["nrf52840", "nrf52840-s140v6-uf2"],
+ "build-tags": ["ledglasses_nrf52840"],
+ "serial-port": ["239a:810d", "239a:810e"],
+ "msd-volume-name": ["GLASSESBOOT"]
+}