update example

esp32s3-lockup/go.mod

@@ -1,3 +0,0 @@
-module esp32s3lockup
-
-go 1.26.2

esp32s3-lockup/main.go

@@ -1,35 +0,0 @@
-package main
-
-import (
-	"machine"
-	"time"
-)
-
-func main() {
-	time.Sleep(3 * time.Second)
-
-	led := machine.GPIO37
-	led.Configure(machine.PinConfig{Mode: machine.PinOutput})
-
-	txDone := true
-	count := 0
-
-	processingCount := 0
-	for {
-		if txDone {
-			txDone = false
-			led.Set(false)
-			time.Sleep(249 * time.Millisecond)
-			led.Set(true)
-			println("hello world", count)
-			count += 1
-		} else {
-			if processingCount > 100000000 {
-				txDone = true
-				println("stall done")
-				processingCount = 0
-			}
-			processingCount += 1
-		}
-	}
-}

lilygo-t3s3-sx128x/main.go

@@ -7,10 +7,24 @@ import (
 	"time"
 
 	"github.com/jwetzell/osc-go"
-	"tinygo.org/x/drivers/lora"
 	"tinygo.org/x/drivers/sx128x"
 )
 
+type LoRaConfig struct {
+	Frequency       uint32
+	Power           int8
+	RadioRamp       sx128x.RadioRampTime
+	RegulatorMode   sx128x.RegulatorMode
+	SpreadingFactor sx128x.LoRaSpreadingFactor
+	Bandwidth       sx128x.LoRaBandwidth
+	CodingRate      sx128x.LoRaCodingRate
+	PreambleLength  uint32
+	HeaderType      sx128x.LoRaHeaderType
+	CrcType         sx128x.LoRaCrcType
+	IqType          sx128x.LoRaIqType
+	SyncWord        uint16
+}
+
 func main() {
 	time.Sleep(3 * time.Second)
 
@@ -65,7 +79,39 @@ func main() {
 	timeout := atomic.Bool{}
 	timeout.Store(true)
 
+	dio1Interrupt := atomic.Bool{}
+	dio1Interrupt.Store(false)
+
 	dio1Pin.SetInterrupt(machine.PinRising, func(machine.Pin) {
+		dio1Interrupt.Store(true)
+	})
+
+	loraConfig := LoRaConfig{
+		Frequency:     2400000000,              // 2.4Ghz
+		Power:         13,                      // dBm
+		RadioRamp:     sx128x.RADIO_RAMP_02_US, // 2 microsecond ramp time
+		RegulatorMode: sx128x.REGULATOR_DC_DC,
+
+		SpreadingFactor: sx128x.LORA_SF_9,
+		Bandwidth:       sx128x.LORA_BW_1600,
+		CodingRate:      sx128x.LORA_CR_4_7,
+		PreambleLength:  12,
+		HeaderType:      sx128x.LORA_HEADER_EXPLICIT,
+		CrcType:         sx128x.LORA_CRC_DISABLE,
+		IqType:          sx128x.LORA_IQ_STD,
+		SyncWord:        0x1424, // the default private sync word
+	}
+
+	radio.WaitWhileBusy(time.Second)
+	SetupLora(radio, loraConfig)
+
+	oscMessage := osc.OSCMessage{
+		Address: "/cue/1/go",
+		Args:    []osc.OSCArg{},
+	}
+
+	for {
+		if dio1Interrupt.Load() {
 			irqStatus, _ := radio.GetIrqStatus()
 
 			if irqStatus&sx128x.IRQ_TX_DONE_MASK != 0 {
@@ -84,31 +130,8 @@ func main() {
 				txDone.Store(true)
 				rxDone.Store(true)
 			}
-	})
+			dio1Interrupt.Store(false)
-
-	loraConfig := lora.Config{
-		Freq:           2400000000,
-		Bw:             lora.Bandwidth_1625_0,
-		Sf:             lora.SpreadingFactor9,
-		Cr:             lora.CodingRate4_7,
-		HeaderType:     sx128x.LORA_EXPLICIT_HEADER,
-		Preamble:       12,
-		Ldr:            lora.LowDataRateOptimizeOff,
-		Iq:             sx128x.LORA_IQ_STD,
-		Crc:            sx128x.LORA_CRC_DISABLE,
-		SyncWord:       0x1424,
-		LoraTxPowerDBm: 13,
 		}
-
-	radio.WaitWhileBusy()
-	SetupLora(radio, loraConfig)
-
-	oscMessage := osc.OSCMessage{
-		Address: "/cue/1/go",
-		Args:    []osc.OSCArg{},
-	}
-
-	for {
 		if txDone.Load() && buttonPressed.Load() {
 			txDone.Store(false)
 			buttonPressed.Store(false)
@@ -155,7 +178,7 @@ func main() {
 	}
 }
 
-func SetupLora(radio *sx128x.Device, config lora.Config) {
+func SetupLora(radio *sx128x.Device, config LoRaConfig) {
 	// Switch to standby prior to configuration changes
 
 	circuitMode, _, _ := radio.GetStatus()
@@ -164,16 +187,16 @@ func SetupLora(radio *sx128x.Device, config lora.Config) {
 	}
 	// Clear errors, disable radio interrupts for the moment
 	radio.SetPacketType(sx128x.PACKET_TYPE_LORA)
-	radio.SetCadParams(sx128x.LORA_CAD_08_SYMBOLS)
+	radio.SetCadParams(uint8(sx128x.LORA_CAD_08_SYMBOLS))
 	radio.SetRegulatorMode(sx128x.REGULATOR_DC_DC)
 
-	radio.SetRfFrequency(config.Freq)
+	radio.SetRfFrequency(config.Frequency)
-	radio.SetModulationParams(spreadingFactor(config.Sf), bandwidth(config.Bw), codingRate(config.Cr))
+	radio.SetModulationParamsLoRa(config.SpreadingFactor, config.Bandwidth, config.CodingRate)
 
 	data := [1]uint8{}
-	if config.Sf == lora.SpreadingFactor5 || config.Sf == lora.SpreadingFactor6 {
+	if config.SpreadingFactor == sx128x.LORA_SF_5 || config.SpreadingFactor == sx128x.LORA_SF_6 {
 		data[0] = 0x1E
-	} else if config.Sf == lora.SpreadingFactor7 || config.Sf == lora.SpreadingFactor8 {
+	} else if config.SpreadingFactor == sx128x.LORA_SF_7 || config.SpreadingFactor == sx128x.LORA_SF_8 {
 		data[0] = 0x37
 	} else {
 		data[0] = 0x32
@@ -183,8 +206,8 @@ func SetupLora(radio *sx128x.Device, config lora.Config) {
 	data[0] = existing | 0x01
 	radio.WriteRegister(0x93C, data[:])
 
-	radio.SetTxParams(config.LoraTxPowerDBm, sx128x.RADIO_RAMP_02_US)
+	radio.SetTxParams(config.Power, sx128x.RADIO_RAMP_02_US)
-	radio.SetPacketParamsLoRa(uint32(config.Preamble), config.HeaderType, 0xFF, config.Crc, config.Iq)
+	radio.SetPacketParamsLoRa(config.PreambleLength, config.HeaderType, 0xFF, config.CrcType, config.IqType)
 	var syncWord [2]uint8
 	syncWord[0] = uint8(config.SyncWord >> 8)
 	syncWord[1] = uint8(config.SyncWord & 0x00FF)
@@ -203,12 +226,12 @@ func checkStatus(radio *sx128x.Device, operation string) {
 	}
 }
 
-func Tx(radio *sx128x.Device, loraConfig lora.Config, data []byte) error {
+func Tx(radio *sx128x.Device, loraConfig LoRaConfig, data []byte) error {
 	if len(data) > 255 {
 		return errors.New("data length exceeds maximum of 255 bytes")
 	}
 	radio.SetStandby(sx128x.STANDBY_RC)
-	radio.SetPacketParamsLoRa(uint32(loraConfig.Preamble), loraConfig.HeaderType, uint8(len(data)&0xFF), loraConfig.Crc, loraConfig.Iq)
+	radio.SetPacketParamsLoRa(loraConfig.PreambleLength, loraConfig.HeaderType, uint8(len(data)&0xFF), loraConfig.CrcType, loraConfig.IqType)
 	radio.SetBufferBaseAddress(0, 0)
 	radio.WriteBuffer(0, data)
 	radio.SetDioIrqParams(sx128x.IRQ_TX_DONE_MASK|sx128x.IRQ_RX_TX_TIMEOUT_MASK, sx128x.IRQ_TX_DONE_MASK|sx128x.IRQ_RX_TX_TIMEOUT_MASK, 0x00, 0x00)
@@ -217,64 +240,11 @@ func Tx(radio *sx128x.Device, loraConfig lora.Config, data []byte) error {
 	return nil
 }
 
-func Rx(radio *sx128x.Device, loraConfig lora.Config) {
+func Rx(radio *sx128x.Device, loraConfig LoRaConfig) {
 	radio.SetStandby(sx128x.STANDBY_RC)
 	radio.SetDioIrqParams(sx128x.IRQ_RX_DONE_MASK|sx128x.IRQ_RX_TX_TIMEOUT_MASK, sx128x.IRQ_RX_DONE_MASK|sx128x.IRQ_RX_TX_TIMEOUT_MASK, 0x00, 0x00)
 	radio.SetBufferBaseAddress(0, 0)
 	radio.ClearIrqStatus(sx128x.IRQ_ALL_MASK)
-	radio.SetRfFrequency(loraConfig.Freq)
+	radio.SetRfFrequency(loraConfig.Frequency)
 	radio.SetRx(sx128x.PERIOD_BASE_4_MS, 250)
 }
-
-func codingRate(cr uint8) uint8 {
-	switch cr {
-	case lora.CodingRate4_5:
-		return sx128x.LORA_CR_4_5
-	case lora.CodingRate4_6:
-		return sx128x.LORA_CR_4_6
-	case lora.CodingRate4_7:
-		return sx128x.LORA_CR_4_7
-	case lora.CodingRate4_8:
-		return sx128x.LORA_CR_4_8
-	default:
-		return 0
-	}
-}
-
-func spreadingFactor(sf uint8) uint8 {
-	switch sf {
-	case lora.SpreadingFactor5:
-		return sx128x.LORA_SF_5
-	case lora.SpreadingFactor6:
-		return sx128x.LORA_SF_6
-	case lora.SpreadingFactor7:
-		return sx128x.LORA_SF_7
-	case lora.SpreadingFactor8:
-		return sx128x.LORA_SF_8
-	case lora.SpreadingFactor9:
-		return sx128x.LORA_SF_9
-	case lora.SpreadingFactor10:
-		return sx128x.LORA_SF_10
-	case lora.SpreadingFactor11:
-		return sx128x.LORA_SF_11
-	case lora.SpreadingFactor12:
-		return sx128x.LORA_SF_12
-	default:
-		return 0
-	}
-}
-
-func bandwidth(bw uint8) uint8 {
-	switch bw {
-	case lora.Bandwidth_1625_0:
-		return sx128x.LORA_BW_1600
-	case lora.Bandwidth_812_5:
-		return sx128x.LORA_BW_800
-	case lora.Bandwidth_406_25:
-		return sx128x.LORA_BW_400
-	case lora.Bandwidth_203_125:
-		return sx128x.LORA_BW_200
-	default:
-		return 0
-	}
-}