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deadprogram
100 lines
2.3 KiB
Go
100 lines
2.3 KiB
Go
package main
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// In this example, a Lora packet will be sent every 10s
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// module will be in RX mode between two transmissions
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import (
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"machine"
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"runtime/interrupt"
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"time"
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"tinygo.org/x/device/stm32"
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rfswitch "tinygo.org/x/drivers/examples/sx126x/rfswitch"
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"tinygo.org/x/drivers/sx126x"
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)
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const FREQ = 868100000
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const (
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LORA_DEFAULT_RXTIMEOUT_MS = 1000
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LORA_DEFAULT_TXTIMEOUT_MS = 5000
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)
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var (
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loraRadio *sx126x.Device
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txmsg = []byte("Hello TinyGO")
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)
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// radioIntHandler will take care of radio interrupts
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func radioIntHandler(intr interrupt.Interrupt) {
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loraRadio.HandleInterrupt()
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}
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func main() {
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println("\n# TinyGo Lora RX/TX test")
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println("# ----------------------")
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machine.LED.Configure(machine.PinConfig{Mode: machine.PinOutput})
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// Create the driver
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loraRadio = sx126x.New(machine.SPI3)
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loraRadio.SetDeviceType(sx126x.DEVICE_TYPE_SX1262)
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// Create RF Switch
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var radioSwitch rfswitch.CustomSwitch
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loraRadio.SetRfSwitch(radioSwitch)
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// Detect the device
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state := loraRadio.DetectDevice()
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if !state {
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panic("sx126x not detected.")
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}
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// Add interrupt handler for Radio IRQs
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intr := interrupt.New(stm32.IRQ_Radio_IRQ_Busy, radioIntHandler)
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intr.Enable()
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loraConf := sx126x.LoraConfig{
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Freq: FREQ,
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Bw: sx126x.SX126X_LORA_BW_500_0,
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Sf: sx126x.SX126X_LORA_SF9,
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Cr: sx126x.SX126X_LORA_CR_4_7,
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HeaderType: sx126x.SX126X_LORA_HEADER_EXPLICIT,
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Preamble: 12,
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Ldr: sx126x.SX126X_LORA_LOW_DATA_RATE_OPTIMIZE_OFF,
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Iq: sx126x.SX126X_LORA_IQ_STANDARD,
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Crc: sx126x.SX126X_LORA_CRC_ON,
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SyncWord: sx126x.SX126X_LORA_MAC_PRIVATE_SYNCWORD,
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LoraTxPowerDBm: 20,
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}
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loraRadio.LoraConfig(loraConf)
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var count uint
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for {
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tStart := time.Now()
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// Blocking RX for LORA_DEFAULT_RXTIMEOUT_MS
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println("Start Lora RX for 10 sec")
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for int(time.Now().Sub(tStart).Seconds()) < 10 {
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buf, err := loraRadio.LoraRx(LORA_DEFAULT_RXTIMEOUT_MS)
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if err != nil {
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println("RX Error: ", err)
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} else if buf != nil {
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println("Packet Received: len=", len(buf), string(buf))
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}
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}
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println("END Lora RX")
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println("LORA TX size=", len(txmsg))
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err := loraRadio.LoraTx(txmsg, LORA_DEFAULT_TXTIMEOUT_MS)
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if err != nil {
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println("TX Error:", err)
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}
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count++
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}
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}
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