sx127x: Ajout du support d'interruptions RXTimeout (DIO1)

examples/sx127x/lora_rxtx/lora_rxtx.go

@@ -1,7 +1,7 @@
 package main
 
-// This example code demonstrates Lora RX/TX.
-// It has been tested with bluepill and SX1276 (RFM95W board)
+// This example code demonstrates Lora RX/TX With SX127x driver
+// You need to connect SPI, DIO0 and DIO1 to use.
 
 import (
 	"machine"
@@ -11,9 +11,10 @@ import (
 )
 
 const (
-	FREQ                      = 868100000
 	LORA_DEFAULT_RXTIMEOUT_MS = 1000
 	LORA_DEFAULT_TXTIMEOUT_MS = 5000
+
+	DIO_PIN_CHANGE = machine.PinRising
 )
 
 var (
@@ -23,27 +24,37 @@ var (
 	SX127X_PIN_RST  = machine.PB9
 	SX127X_PIN_CS   = machine.PB8
 	SX127X_PIN_DIO0 = machine.PA0
+	SX127X_PIN_DIO1 = machine.PA1
 	SX127X_SPI      = machine.SPI0
 
 	txmsg = []byte("Hello TinyGO")
+
+	// Prepare for Lora Operation
+	loraConf = sx127x.LoraConfig{
+		Freq:           868100000,
+		Bw:             sx127x.SX127X_LORA_BW_125_0,
+		Sf:             sx127x.SX127X_LORA_SF9,
+		Cr:             sx127x.SX127X_LORA_CR_4_7,
+		HeaderType:     sx127x.SX127X_LORA_HEADER_EXPLICIT,
+		Preamble:       12,
+		Iq:             sx127x.SX127X_LORA_IQ_STANDARD,
+		Crc:            sx127x.SX127X_LORA_CRC_ON,
+		SyncWord:       sx127x.SX127X_LORA_MAC_PUBLIC_SYNCWORD,
+		LoraTxPowerDBm: 20,
+	}
 )
 
 func main() {
-	println("\n# TinyGo Lora continuous Wave/Preamble test")
-	println("# -----------------------------------------")
+	println("\n# TinyGo Driver SX127X RX/TX example")
+	println("# ------------------------------------")
 
 	println("main: configuring LED/SPI/DIO/IRQ")
 	machine.LED.Configure(machine.PinConfig{Mode: machine.PinOutput})
 	SX127X_PIN_RST.Configure(machine.PinConfig{Mode: machine.PinOutput})
 	SX127X_PIN_CS.Configure(machine.PinConfig{Mode: machine.PinOutput})
-	SX127X_PIN_DIO0.Configure(machine.PinConfig{Mode: machine.PinInputPulldown})
+	SX127X_PIN_DIO0.Configure(machine.PinConfig{Mode: machine.PinInputPullup})
+	SX127X_PIN_DIO1.Configure(machine.PinConfig{Mode: machine.PinInputPullup})
 	SX127X_SPI.Configure(machine.SPIConfig{Frequency: 500000, Mode: 0})
-	err := SX127X_PIN_DIO0.SetInterrupt(machine.PinRising, func(machine.Pin) { // Int handler
-		loraRadio.HandleInterrupt()
-	})
-	if err != nil {
-		panic("main: Can't configure DIO int handler")
-	}
 
 	println("main: create and start SX127x driver")
 	loraRadio = sx127x.New(SX127X_SPI, SX127X_PIN_CS, SX127X_PIN_RST)
@@ -55,18 +66,28 @@ func main() {
 		println("main: sx127x found")
 	}
 
+	// Setup DIO0 interrupt Handling
+	err := SX127X_PIN_DIO0.SetInterrupt(DIO_PIN_CHANGE, func(machine.Pin) {
+		if SX127X_PIN_DIO0.Get() {
+			loraRadio.HandleInterrupt()
+		}
+	})
+	if err != nil {
+		println("could not configure DIO0 pin interrupt:", err.Error())
+	}
+
+	// Setup DIO1 interrupt Handling
+	err = SX127X_PIN_DIO1.SetInterrupt(DIO_PIN_CHANGE, func(machine.Pin) {
+		if SX127X_PIN_DIO1.Get() {
+			loraRadio.HandleInterrupt()
+		}
+	})
+	if err != nil {
+		println("could not configure DIO1 pin interrupt:", err.Error())
+	}
+
 	println("main: Configure lora modulation")
-	loraRadio.SetOpModeLora()
-	loraRadio.SetOpMode(sx127x.SX127X_OPMODE_SLEEP)
-	loraRadio.SetTxPower(11, true)
-	loraRadio.SetLoraFrequency(FREQ)
-	loraRadio.SetLoraBandwidth(sx127x.SX127X_LORA_BW_125_0)
-	loraRadio.SetLoraSpreadingFactor(sx127x.SX127X_LORA_SF11)
-	loraRadio.SetLoraCodingRate(sx127x.SX127X_LORA_CR_4_5)
-	loraRadio.SetLoraIqMode(sx127x.SX127X_LORA_IQ_STANDARD)
-	loraRadio.SetLoraCrc(true)
-	loraRadio.SetLoraHeaderMode(sx127x.SX127X_LORA_HEADER_EXPLICIT)
-	loraRadio.SetLowDataRateOptim(sx127x.SX127X_LOW_DATARATE_OPTIM_OFF)
+	loraRadio.LoraConfig(loraConf)
 
 	// Get uint32 from RSSI
 	rand32 := loraRadio.RandomU32()
@@ -78,7 +99,7 @@ func main() {
 		machine.LED.Set(!machine.LED.Get())
 
 		println("main: Receiving Lora for 10 seconds")
-		for int(time.Now().Sub(tStart).Seconds()) < 60 {
+		for int(time.Now().Sub(tStart).Seconds()) < 10 {
 			buf, err := loraRadio.LoraRx(LORA_DEFAULT_RXTIMEOUT_MS)
 			if err != nil {
 				println("RX Error: ", err)
@@ -87,7 +108,6 @@ func main() {
 			}
 		}
 		println("main: End Lora RX")
-
 		println("LORA TX size=", len(txmsg), " -> ", string(txmsg))
 		err := loraRadio.LoraTx(txmsg, LORA_DEFAULT_TXTIMEOUT_MS)
 		if err != nil {