machine: support wioterminal boards on play.tinygo.org

Author: sago35

src/machine/board_wioterminal.go

@@ -1,12 +1,7 @@
-// +build sam,atsamd51,wioterminal
+// +build wioterminal
 
 package machine
 
-import (
-	"device/sam"
-	"runtime/interrupt"
-)
-
 // used to reset into bootloader
 const RESET_MAGIC_VALUE = 0xf01669ef
 
@@ -351,26 +346,6 @@ const (
 	UART2_RX_PIN = PIN_SERIAL2_RX
 )
 
-var (
-	UART1 = UART{
-		Buffer: NewRingBuffer(),
-		Bus:    sam.SERCOM2_USART_INT,
-		SERCOM: 2,
-	}
-
-	// RTL8720D
-	UART2 = UART{
-		Buffer: NewRingBuffer(),
-		Bus:    sam.SERCOM1_USART_INT,
-		SERCOM: 1,
-	}
-)
-
-func init() {
-	UART1.Interrupt = interrupt.New(sam.IRQ_SERCOM2_2, UART1.handleInterrupt)
-	UART2.Interrupt = interrupt.New(sam.IRQ_SERCOM1_2, UART2.handleInterrupt)
-}
-
 // I2C pins
 const (
 	SDA0_PIN = PIN_WIRE_SDA // SDA: SERCOM3/PAD[0]
@@ -383,19 +358,6 @@ const (
 	SCL_PIN = SCL0_PIN
 )
 
-// I2C on the Wio Terminal
-var (
-	I2C0 = I2C{
-		Bus:    sam.SERCOM4_I2CM,
-		SERCOM: 4,
-	}
-
-	I2C1 = I2C{
-		Bus:    sam.SERCOM4_I2CM,
-		SERCOM: 4,
-	}
-)
-
 // SPI pins
 const (
 	SPI0_SCK_PIN  = SCK  // SCK:  SERCOM5/PAD[1]
@@ -418,32 +380,6 @@ const (
 	SPI3_MISO_PIN = MISO3 // MISO: SERCOM7/PAD[2]
 )
 
-// SPI on the Wio Terminal
-var (
-	SPI0 = SPI{
-		Bus:    sam.SERCOM5_SPIM,
-		SERCOM: 5,
-	}
-
-	// RTL8720D
-	SPI1 = SPI{
-		Bus:    sam.SERCOM0_SPIM,
-		SERCOM: 0,
-	}
-
-	// SD
-	SPI2 = SPI{
-		Bus:    sam.SERCOM6_SPIM,
-		SERCOM: 6,
-	}
-
-	// LCD
-	SPI3 = SPI{
-		Bus:    sam.SERCOM7_SPIM,
-		SERCOM: 7,
-	}
-)
-
 // USB CDC identifiers
 const (
 	usb_STRING_PRODUCT      = "Seeed Wio Terminal"

src/machine/board_wioterminal_baremetal.go

@@ -0,0 +1,67 @@
+// +build sam,atsamd51,wioterminal
+
+package machine
+
+import (
+	"device/sam"
+	"runtime/interrupt"
+)
+
+var (
+	UART1 = UART{
+		Buffer: NewRingBuffer(),
+		Bus:    sam.SERCOM2_USART_INT,
+		SERCOM: 2,
+	}
+
+	// RTL8720D
+	UART2 = UART{
+		Buffer: NewRingBuffer(),
+		Bus:    sam.SERCOM1_USART_INT,
+		SERCOM: 1,
+	}
+)
+
+func init() {
+	UART1.Interrupt = interrupt.New(sam.IRQ_SERCOM2_2, UART1.handleInterrupt)
+	UART2.Interrupt = interrupt.New(sam.IRQ_SERCOM1_2, UART2.handleInterrupt)
+}
+
+// I2C on the Wio Terminal
+var (
+	I2C0 = I2C{
+		Bus:    sam.SERCOM4_I2CM,
+		SERCOM: 4,
+	}
+
+	I2C1 = I2C{
+		Bus:    sam.SERCOM4_I2CM,
+		SERCOM: 4,
+	}
+)
+
+// SPI on the Wio Terminal
+var (
+	SPI0 = SPI{
+		Bus:    sam.SERCOM5_SPIM,
+		SERCOM: 5,
+	}
+
+	// RTL8720D
+	SPI1 = SPI{
+		Bus:    sam.SERCOM0_SPIM,
+		SERCOM: 0,
+	}
+
+	// SD
+	SPI2 = SPI{
+		Bus:    sam.SERCOM6_SPIM,
+		SERCOM: 6,
+	}
+
+	// LCD
+	SPI3 = SPI{
+		Bus:    sam.SERCOM7_SPIM,
+		SERCOM: 7,
+	}
+)