stm32/stm32wlx: Add support for stm32wl55_cm4

 board/stm32: Add support for GNSE (Generic Node Sensor Edition)

 Thanks to @jamestait for his help on GNSE port

15 files changed, 100 insertions, 22 deletions

diff --git a/README.md b/README.md
index 74aed7f3c..8d132cac1 100644
--- a/README.md
+++ b/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 74 microcontroller boards are currently supported:
+The following 75 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)
@@ -119,6 +119,7 @@ The following 74 microcontroller boards are currently supported:
 * [ST Micro STM32F103XX "Bluepill"](https://stm32-base.org/boards/STM32F103C8T6-Blue-Pill)
 * [ST Micro STM32F407 "Discovery"](https://www.st.com/en/evaluation-tools/stm32f4discovery.html)
 * [X9 Pro smartwatch](https://github.com/curtpw/nRF5x-device-reverse-engineering/tree/master/X9-nrf52832-activity-tracker/)
+* [The Things Industries Generic Node Sensor Edition](https://www.genericnode.com/docs/sensor-edition/)
 
 For more information, see [this list of boards](https://tinygo.org/microcontrollers/). Pull requests for additional support are welcome!
 
diff --git a/src/crypto/rand/rand_baremetal.go b/src/crypto/rand/rand_baremetal.go
index 3fe4cae7f..b5f8bc211 100644
--- a/src/crypto/rand/rand_baremetal.go
+++ b/src/crypto/rand/rand_baremetal.go
@@ -1,5 +1,5 @@
-//go:build stm32wle5
-// +build stm32wle5
+//go:build stm32wlx
+// +build stm32wlx
 
 package rand
 
diff --git a/src/machine/board_gnse.go b/src/machine/board_gnse.go
new file mode 100644
index 000000000..efe27073a
--- /dev/null
+++ b/src/machine/board_gnse.go
@@ -0,0 +1,58 @@
+//go:build gnse
+// +build gnse
+
+package machine
+
+import (
+	"device/stm32"
+	"runtime/interrupt"
+)
+
+const (
+	LED_RED   = PB5
+	LED_GREEN = PB6
+	LED_BLUE  = PB7
+	LED1      = LED_RED   // Red
+	LED2      = LED_GREEN // Green
+	LED3      = LED_BLUE  // Blue
+	LED       = LED_GREEN // Default
+
+	BUTTON = PB3
+
+	// SPI0
+	SPI0_NSS_PIN = PA4
+	SPI0_SCK_PIN = PA5
+	SPI0_SDO_PIN = PA6
+	SPI0_SDI_PIN = PA7
+
+	//MCU USART2
+	UART2_RX_PIN = PA3
+	UART2_TX_PIN = PA2
+
+	// DEFAULT USART
+	UART_RX_PIN = UART2_RX_PIN
+	UART_TX_PIN = UART2_TX_PIN
+)
+
+var (
+	// STM32 UART2 is connected to the embedded STLINKV3 Virtual Com Port
+	UART0  = &_UART0
+	_UART0 = UART{
+		Buffer:            NewRingBuffer(),
+		Bus:               stm32.USART2,
+		TxAltFuncSelector: 7,
+		RxAltFuncSelector: 7,
+	}
+
+	DefaultUART = UART0
+
+	// SPI
+	SPI3 = SPI{
+		Bus: stm32.SPI3,
+	}
+)
+
+func init() {
+	// Enable UARTs Interrupts
+	UART0.Interrupt = interrupt.New(stm32.IRQ_USART2, _UART0.handleInterrupt)
+}
diff --git a/src/machine/i2c.go b/src/machine/i2c.go
index 737e7a4c8..d7a0deca1 100644
--- a/src/machine/i2c.go
+++ b/src/machine/i2c.go
@@ -1,5 +1,5 @@
-//go:build atmega || nrf || sam || (stm32 && !stm32wle5) || fe310 || k210 || rp2040
-// +build atmega nrf sam stm32,!stm32wle5 fe310 k210 rp2040
+//go:build atmega || nrf || sam || (stm32 && !stm32wlx) || fe310 || k210 || rp2040
+// +build atmega nrf sam stm32,!stm32wlx fe310 k210 rp2040
 
 package machine
 
diff --git a/src/machine/machine_stm32_exti_syscfg.go b/src/machine/machine_stm32_exti_syscfg.go
index 3b3680aed..7e4666cf4 100644
--- a/src/machine/machine_stm32_exti_syscfg.go
+++ b/src/machine/machine_stm32_exti_syscfg.go
@@ -1,5 +1,5 @@
-//go:build stm32 && !stm32f1 && !stm32l5 && !stm32wle5
-// +build stm32,!stm32f1,!stm32l5,!stm32wle5
+//go:build stm32 && !stm32f1 && !stm32l5 && !stm32wlx
+// +build stm32,!stm32f1,!stm32l5,!stm32wlx
 
 package machine
 
diff --git a/src/machine/machine_stm32_exti_syscfg_noenable.go b/src/machine/machine_stm32_exti_syscfg_noenable.go
index 576d77ae7..d6fa06e27 100644
--- a/src/machine/machine_stm32_exti_syscfg_noenable.go
+++ b/src/machine/machine_stm32_exti_syscfg_noenable.go
@@ -1,5 +1,5 @@
-//go:build stm32wle5
-// +build stm32wle5
+//go:build stm32wlx
+// +build stm32wlx
 
 package machine
 
diff --git a/src/machine/machine_stm32_gpio_reva.go b/src/machine/machine_stm32_gpio_reva.go
index 19b683865..1712986aa 100644
--- a/src/machine/machine_stm32_gpio_reva.go
+++ b/src/machine/machine_stm32_gpio_reva.go
@@ -1,5 +1,5 @@
-//go:build stm32 && !stm32l4 && !stm32l5 && !stm32wle5
-// +build stm32,!stm32l4,!stm32l5,!stm32wle5
+//go:build stm32 && !stm32l4 && !stm32l5 && !stm32wlx
+// +build stm32,!stm32l4,!stm32l5,!stm32wlx
 
 package machine
 
diff --git a/src/machine/machine_stm32_gpio_revb_mp.go b/src/machine/machine_stm32_gpio_revb_mp.go
index a8d058fb3..0eb91989a 100644
--- a/src/machine/machine_stm32_gpio_revb_mp.go
+++ b/src/machine/machine_stm32_gpio_revb_mp.go
@@ -1,5 +1,5 @@
-//go:build stm32wle5
-// +build stm32wle5
+//go:build stm32wlx
+// +build stm32wlx
 
 package machine
 
diff --git a/src/machine/machine_stm32wle5.go b/src/machine/machine_stm32wlx.go
index 639923257..7824451a5 100644
--- a/src/machine/machine_stm32wle5.go
+++ b/src/machine/machine_stm32wlx.go
@@ -1,5 +1,5 @@
-//go:build stm32wle5
-// +build stm32wle5
+//go:build stm32wlx
+// +build stm32wlx
 
 package machine
 
diff --git a/src/runtime/runtime_stm32wle5.go b/src/runtime/runtime_stm32wlx.go
index 671ffd656..9f389f0f7 100644
--- a/src/runtime/runtime_stm32wle5.go
+++ b/src/runtime/runtime_stm32wlx.go
@@ -1,5 +1,5 @@
-//go:build stm32wle5
-// +build stm32wle5
+//go:build stm32wlx
+// +build stm32wlx
 
 package runtime
 
diff --git a/targets/gnse.json b/targets/gnse.json
new file mode 100644
index 000000000..5453c7f9a
--- /dev/null
+++ b/targets/gnse.json
@@ -0,0 +1,12 @@
+{
+	"inherits": [
+		"stm32wl5x_cm4"
+	],
+	"build-tags": [
+		"gnse"
+	],
+	"serial": "uart",
+	"flash-method": "openocd",
+	"openocd-interface": "stlink",
+	"openocd-target": "stm32wlx"
+}
diff --git a/targets/nucleo-wl55jc.json b/targets/nucleo-wl55jc.json
index c8b2356d2..3e4f8ca1b 100644
--- a/targets/nucleo-wl55jc.json
+++ b/targets/nucleo-wl55jc.json
@@ -1,12 +1,11 @@
 {
 	"inherits": [
-		"stm32wle5"
+		"stm32wl5x_cm4"
 	],
 	"build-tags": [
 		"nucleowl55jc"
 	],
 	"serial": "uart",
-	"linkerscript": "targets/stm32wle5.ld",
 	"flash-method": "openocd",
 	"openocd-interface": "stlink",
 	"openocd-target": "stm32wlx"
diff --git a/targets/stm32wl5x_cm4.json b/targets/stm32wl5x_cm4.json
new file mode 100644
index 000000000..00d8bbb82
--- /dev/null
+++ b/targets/stm32wl5x_cm4.json
@@ -0,0 +1,8 @@
+{
+    "inherits": ["cortex-m4"],
+    "build-tags": [ "stm32wl5x_cm4","stm32wlx", "stm32"],
+    "extra-files": [
+      "src/device/stm32/stm32wl5x_cm4.s"
+    ],
+    "linkerscript": "targets/stm32wlx.ld"
+}
diff --git a/targets/stm32wle5.json b/targets/stm32wle5.json
index ac3b8bcea..f24f28f2e 100644
--- a/targets/stm32wle5.json
+++ b/targets/stm32wle5.json
@@ -1,8 +1,8 @@
 {
     "inherits": ["cortex-m4"],
-    "build-tags": ["stm32wle5", "stm32"],
+    "build-tags": [ "stm32wle5","stm32wlx", "stm32"],
     "extra-files": [
       "src/device/stm32/stm32wle5.s"
     ],
-    "linkerscript": "targets/stm32wle5.ld"
-}
\ No newline at end of file
+    "linkerscript": "targets/stm32wlx.ld"
+}
diff --git a/targets/stm32wle5.ld b/targets/stm32wlx.ld
index 59b616903..59b616903 100644
--- a/targets/stm32wle5.ld
+++ b/targets/stm32wlx.ld