boards: add Challenger RP2040 LoRa

Makefile

@@ -569,6 +569,8 @@ endif
 	@$(MD5SUM) test.hex
 	$(TINYGO) build -size short -o test.hex -target=xiao-rp2040         examples/blinky1
 	@$(MD5SUM) test.hex
+	$(TINYGO) build -size short -o test.hex -target=challenger-rp2040    examples/blinky1
+	@$(MD5SUM) test.hex
 	# test pwm
 	$(TINYGO) build -size short -o test.hex -target=itsybitsy-m0        examples/pwm
 	@$(MD5SUM) test.hex

README.md

@@ -43,7 +43,7 @@ See the [getting started instructions](https://tinygo.org/getting-started/) for
 
 You can compile TinyGo programs for microcontrollers, WebAssembly and Linux.
 
-The following 87 microcontroller boards are currently supported:
+The following 88 microcontroller boards are currently supported:
 
 * [Adafruit Circuit Playground Bluefruit](https://www.adafruit.com/product/4333)
 * [Adafruit Circuit Playground Express](https://www.adafruit.com/product/3333)
@@ -89,6 +89,7 @@ The following 87 microcontroller boards are currently supported:
 * [ESP8266 - d1mini](https://www.espressif.com/en/products/socs/esp8266)
 * [ESP8266 - NodeMCU](https://www.espressif.com/en/products/socs/esp8266)
 * [Game Boy Advance](https://en.wikipedia.org/wiki/Game_Boy_Advance)
+* [iLabs Challenger RP2040 LoRa](https://ilabs.se/product/challenger-rp2040-lora/)
 * [M5Stack](https://docs.m5stack.com/en/core/basic)
 * [M5Stack Core2](https://shop.m5stack.com/products/m5stack-core2-esp32-iot-development-kit)
 * [M5Stamp C3](https://docs.m5stack.com/en/core/stamp_c3)

src/machine/board_badger2040.go

@@ -9,6 +9,11 @@
 //
 package machine
 
+import (
+	"device/rp"
+	"runtime/interrupt"
+)
+
 const (
 	LED Pin = GPIO25
 
@@ -79,3 +84,26 @@ var (
 	usb_VID uint16 = 0x2e8a
 	usb_PID uint16 = 0x0003
 )
+
+// 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)
+}

src/machine/board_challenger_rp2040.go

@@ -0,0 +1,119 @@
+//go:build challenger_rp2040
+// +build challenger_rp2040
+
+package machine
+
+import (
+	"device/rp"
+	"runtime/interrupt"
+)
+
+const (
+	LED = GPIO24
+
+	// Onboard crystal oscillator frequency, in MHz.
+	xoscFreq = 12 // MHz
+)
+
+// GPIO Pins
+const (
+	D5  = GPIO2
+	D6  = GPIO3
+	D9  = GPIO4
+	D10 = GPIO5
+	D11 = GPIO6
+	D12 = GPIO7
+	D13 = GPIO8
+)
+
+// Analog pins
+const (
+	A0 = ADC0
+	A1 = ADC1
+	A2 = ADC2
+	A3 = ADC3
+)
+
+// I2C Pins.
+const (
+	I2C0_SDA_PIN = GPIO24
+	I2C0_SCL_PIN = GPIO25
+
+	I2C1_SDA_PIN = GPIO2
+	I2C1_SCL_PIN = GPIO3
+
+	SDA_PIN = I2C1_SDA_PIN
+	SCL_PIN = I2C1_SCL_PIN
+)
+
+// SPI default pins
+const (
+	// Default Serial Clock Bus 0 for SPI communications
+	SPI0_SCK_PIN = GPIO22
+	// Default Serial Out Bus 0 for SPI communications
+	SPI0_SDO_PIN = GPIO23 // Tx
+	// Default Serial In Bus 0 for SPI communications
+	SPI0_SDI_PIN = GPIO20 // Rx
+
+	// Default Serial Clock Bus 1 for SPI communications
+	SPI1_SCK_PIN = GPIO10
+	// Default Serial Out Bus 1 for SPI communications
+	SPI1_SDO_PIN = GPIO11 // Tx
+	// Default Serial In Bus 1 for SPI communications
+	SPI1_SDI_PIN = GPIO12 // Rx
+)
+
+// LoRa default pins
+const (
+	LORA_CS    = GPIO9
+	LORA_SCK   = GPIO10
+	LORA_SDO   = GPIO11
+	LORA_SDI   = GPIO12
+	LORA_RESET = GPIO13
+	LORA_DIO0  = GPIO14
+	LORA_DIO1  = GPIO15
+	LORA_DIO2  = GPIO18
+)
+
+// UART pins
+const (
+	UART0_TX_PIN = GPIO16
+	UART0_RX_PIN = GPIO17
+	UART1_TX_PIN = GPIO4
+	UART1_RX_PIN = GPIO5
+	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,
+	}
+
+	UART1  = &_UART1
+	_UART1 = UART{
+		Buffer: NewRingBuffer(),
+		Bus:    rp.UART1,
+	}
+)
+
+var DefaultUART = UART0
+
+func init() {
+	UART0.Interrupt = interrupt.New(rp.IRQ_UART0_IRQ, _UART0.handleInterrupt)
+	UART1.Interrupt = interrupt.New(rp.IRQ_UART1_IRQ, _UART1.handleInterrupt)
+}
+
+// USB identifiers
+const (
+	usb_STRING_PRODUCT      = "Challenger 2040 LoRa"
+	usb_STRING_MANUFACTURER = "iLabs"
+)
+
+var (
+	usb_VID uint16 = 0x2e8a
+	usb_PID uint16 = 0x1023
+)

src/machine/board_feather_rp2040.go

@@ -3,6 +3,11 @@
 
 package machine
 
+import (
+	"device/rp"
+	"runtime/interrupt"
+)
+
 const (
 	LED = GPIO13
 
@@ -61,6 +66,38 @@ const (
 	SPI1_SDI_PIN = GPIO12 // Rx
 )
 
+// UART pins
+const (
+	UART0_TX_PIN = GPIO0
+	UART0_RX_PIN = GPIO1
+	UART1_TX_PIN = GPIO8
+	UART1_RX_PIN = GPIO9
+	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,
+	}
+
+	UART1  = &_UART1
+	_UART1 = UART{
+		Buffer: NewRingBuffer(),
+		Bus:    rp.UART1,
+	}
+)
+
+var DefaultUART = UART0
+
+func init() {
+	UART0.Interrupt = interrupt.New(rp.IRQ_UART0_IRQ, _UART0.handleInterrupt)
+	UART1.Interrupt = interrupt.New(rp.IRQ_UART1_IRQ, _UART1.handleInterrupt)
+}
+
 // USB identifiers
 const (
 	usb_STRING_PRODUCT      = "Feather RP2040"

src/machine/board_macropad-rp2040.go

@@ -3,6 +3,11 @@
 
 package machine
 
+import (
+	"device/rp"
+	"runtime/interrupt"
+)
+
 const (
 	NeopixelCount = 12
 
@@ -65,6 +70,29 @@ const (
 	SPI0_SDI_PIN = 31 // not pinned out
 )
 
+// 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)
+}
+
 // USB identifiers
 const (
 	usb_STRING_PRODUCT      = "MacroPad RP2040"

src/machine/board_nano-rp2040.go

@@ -13,6 +13,11 @@
 //
 package machine
 
+import (
+	"device/rp"
+	"runtime/interrupt"
+)
+
 // Digital Pins
 const (
 	D2  Pin = GPIO25
@@ -104,3 +109,26 @@ 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)
+}

src/machine/board_pico.go

@@ -3,6 +3,11 @@
 
 package machine
 
+import (
+	"device/rp"
+	"runtime/interrupt"
+)
+
 // GPIO pins
 const (
 	GP0  Pin = GPIO0
@@ -65,6 +70,38 @@ const (
 	SPI1_SDI_PIN = GPIO12 // Rx
 )
 
+// UART pins
+const (
+	UART0_TX_PIN = GPIO0
+	UART0_RX_PIN = GPIO1
+	UART1_TX_PIN = GPIO8
+	UART1_RX_PIN = GPIO9
+	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,
+	}
+
+	UART1  = &_UART1
+	_UART1 = UART{
+		Buffer: NewRingBuffer(),
+		Bus:    rp.UART1,
+	}
+)
+
+var DefaultUART = UART0
+
+func init() {
+	UART0.Interrupt = interrupt.New(rp.IRQ_UART0_IRQ, _UART0.handleInterrupt)
+	UART1.Interrupt = interrupt.New(rp.IRQ_UART1_IRQ, _UART1.handleInterrupt)
+}
+
 // USB identifiers
 const (
 	usb_STRING_PRODUCT      = "Pico"

src/machine/board_thingplus_rp2040.go

@@ -3,6 +3,11 @@
 
 package machine
 
+import (
+	"device/rp"
+	"runtime/interrupt"
+)
+
 const (
 	LED = GPIO25
 
@@ -80,6 +85,29 @@ const (
 	SPI1_SDI_PIN = GPIO12 // Rx
 )
 
+// 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)
+}
+
 // USB identifiers
 const (
 	usb_STRING_PRODUCT      = "Thing Plus RP2040"

src/machine/board_xiao-rp2040.go

@@ -9,6 +9,11 @@
 //
 package machine
 
+import (
+	"device/rp"
+	"runtime/interrupt"
+)
+
 // Digital Pins
 const (
 	D0  Pin = GPIO26
@@ -67,6 +72,29 @@ const (
 	xoscFreq = 12 // MHz
 )
 
+// 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)
+}
+
 // USB CDC identifiers
 const (
 	usb_STRING_PRODUCT      = "XIAO RP2040"

src/machine/machine_rp2040.go

@@ -5,7 +5,6 @@ package machine
 
 import (
 	"device/rp"
-	"runtime/interrupt"
 )
 
 const deviceName = rp.Device
@@ -91,38 +90,6 @@ func lightSleep(ticks uint64) {
 	timer.lightSleep(ticks)
 }
 
-// UART pins
-const (
-	UART_TX_PIN  = UART0_TX_PIN
-	UART_RX_PIN  = UART0_RX_PIN
-	UART0_TX_PIN = GPIO0
-	UART0_RX_PIN = GPIO1
-	UART1_TX_PIN = GPIO8
-	UART1_RX_PIN = GPIO9
-)
-
-// UART on the RP2040
-var (
-	UART0  = &_UART0
-	_UART0 = UART{
-		Buffer: NewRingBuffer(),
-		Bus:    rp.UART0,
-	}
-
-	UART1  = &_UART1
-	_UART1 = UART{
-		Buffer: NewRingBuffer(),
-		Bus:    rp.UART1,
-	}
-)
-
-var DefaultUART = UART0
-
-func init() {
-	UART0.Interrupt = interrupt.New(rp.IRQ_UART0_IRQ, _UART0.handleInterrupt)
-	UART1.Interrupt = interrupt.New(rp.IRQ_UART1_IRQ, _UART1.handleInterrupt)
-}
-
 // CurrentCore returns the core number the call was made from.
 func CurrentCore() int {
 	return int(rp.SIO.CPUID.Get())

targets/challenger-rp2040.json

@@ -0,0 +1,11 @@
+{
+    "inherits": [
+        "rp2040"
+    ],
+    "serial": "uart",
+    "build-tags": ["challenger_rp2040"],
+    "linkerscript": "targets/feather-rp2040.ld",
+    "extra-files": [
+        "targets/feather-rp2040-boot-stage2.S"
+    ]
+}