Add Particle Xenon

Author: suda

src/machine/board_particle_xenon.go

@@ -0,0 +1,43 @@
+// +build particle_xenon
+
+package machine
+
+const HasLowFrequencyCrystal = true
+
+// LEDs on the XENON
+const (
+	LED       Pin = 44
+	LED_GREEN Pin = 14
+	LED_RED   Pin = 13
+	LED_BLUE  Pin = 15
+)
+
+// UART pins
+const (
+	UART_TX_PIN Pin = 6
+	UART_RX_PIN Pin = 8
+)
+
+// I2C pins
+const (
+	SDA_PIN = 26
+	SCL_PIN = 27
+)
+
+// SPI pins
+const (
+	SPI0_SCK_PIN  = 47
+	SPI0_MOSI_PIN = 45
+	SPI0_MISO_PIN = 46
+)
+
+// Other periferals
+const (
+	MODE_BUTTON   = 11
+	CHARGE_STATUS = 41
+	LIPO_VOLTAGE  = 5
+	PCB_ANTENNA   = 24
+	EXTERNAL_UFL  = 25
+	NFC1          = 9
+	NFC2          = 10
+)

targets/particle-xenon.json

@@ -0,0 +1,6 @@
+{
+	"inherits": ["nrf52840_mdk"],
+	"build-tags": ["particle_xenon"],
+	"flash-method": "openocd",
+	"openocd-interface": "cmsis-dap"
+}