86 lines
3.0 KiB
Rust
86 lines
3.0 KiB
Rust
//! This example runs on the STM32 LoRa Discovery board, which has a builtin Semtech Sx1276 radio.
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//! It demonstrates LoRaWAN join functionality.
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#![no_std]
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#![no_main]
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#![macro_use]
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#![feature(type_alias_impl_trait)]
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use defmt::*;
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use embassy_executor::Spawner;
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use embassy_lora::iv::Stm32l0InterfaceVariant;
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use embassy_lora::LoraTimer;
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use embassy_stm32::exti::{Channel, ExtiInput};
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use embassy_stm32::gpio::{Input, Level, Output, Pin, Pull, Speed};
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use embassy_stm32::rng::Rng;
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use embassy_stm32::time::khz;
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use embassy_stm32::{bind_interrupts, peripherals, rng, spi};
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use embassy_time::Delay;
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use lora_phy::mod_params::*;
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use lora_phy::sx1276_7_8_9::SX1276_7_8_9;
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use lora_phy::LoRa;
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use lorawan::default_crypto::DefaultFactory as Crypto;
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use lorawan_device::async_device::lora_radio::LoRaRadio;
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use lorawan_device::async_device::{region, Device, JoinMode};
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use lorawan_device::{AppEui, AppKey, DevEui};
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use {defmt_rtt as _, panic_probe as _};
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bind_interrupts!(struct Irqs {
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RNG_LPUART1 => rng::InterruptHandler<peripherals::RNG>;
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});
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const LORAWAN_REGION: region::Region = region::Region::EU868; // warning: set this appropriately for the region
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#[embassy_executor::main]
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async fn main(_spawner: Spawner) {
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let mut config = embassy_stm32::Config::default();
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config.rcc.mux = embassy_stm32::rcc::ClockSrc::HSI;
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config.rcc.enable_hsi48 = true;
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let p = embassy_stm32::init(config);
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let mut spi_config = spi::Config::default();
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spi_config.frequency = khz(200);
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// SPI for sx1276
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let spi = spi::Spi::new(p.SPI1, p.PB3, p.PA7, p.PA6, p.DMA1_CH3, p.DMA1_CH2, spi_config);
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let nss = Output::new(p.PA15.degrade(), Level::High, Speed::Low);
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let reset = Output::new(p.PC0.degrade(), Level::High, Speed::Low);
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let irq_pin = Input::new(p.PB4.degrade(), Pull::Up);
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let irq = ExtiInput::new(irq_pin, p.EXTI4.degrade());
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let iv = Stm32l0InterfaceVariant::new(nss, reset, irq, None, None).unwrap();
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let lora = {
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match LoRa::new(SX1276_7_8_9::new(BoardType::Stm32l0Sx1276, spi, iv), true, Delay).await {
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Ok(l) => l,
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Err(err) => {
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info!("Radio error = {}", err);
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return;
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}
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}
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};
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let radio = LoRaRadio::new(lora);
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let region: region::Configuration = region::Configuration::new(LORAWAN_REGION);
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let mut device: Device<_, Crypto, _, _> = Device::new(region, radio, LoraTimer::new(), Rng::new(p.RNG, Irqs));
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defmt::info!("Joining LoRaWAN network");
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// TODO: Adjust the EUI and Keys according to your network credentials
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match device
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.join(&JoinMode::OTAA {
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deveui: DevEui::from([0, 0, 0, 0, 0, 0, 0, 0]),
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appeui: AppEui::from([0, 0, 0, 0, 0, 0, 0, 0]),
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appkey: AppKey::from([0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]),
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})
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.await
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{
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Ok(()) => defmt::info!("LoRaWAN network joined"),
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Err(err) => {
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info!("Radio error = {}", err);
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return;
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}
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};
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}
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