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-rw-r--r--examples/stm32l0/src/bin/lora_lorawan.rs85
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diff --git a/examples/stm32l0/src/bin/lora_lorawan.rs b/examples/stm32l0/src/bin/lora_lorawan.rs
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1//! This example runs on the STM32 LoRa Discovery board, which has a builtin Semtech Sx1276 radio.
2//! It demonstrates LoRaWAN join functionality.
3#![no_std]
4#![no_main]
5#![macro_use]
6#![feature(type_alias_impl_trait)]
7
8use defmt::*;
9use embassy_executor::Spawner;
10use embassy_lora::iv::Stm32l0InterfaceVariant;
11use embassy_lora::LoraTimer;
12use embassy_stm32::exti::{Channel, ExtiInput};
13use embassy_stm32::gpio::{Input, Level, Output, Pin, Pull, Speed};
14use embassy_stm32::rng::Rng;
15use embassy_stm32::time::khz;
16use embassy_stm32::{bind_interrupts, peripherals, rng, spi};
17use embassy_time::Delay;
18use lora_phy::mod_params::*;
19use lora_phy::sx1276_7_8_9::SX1276_7_8_9;
20use lora_phy::LoRa;
21use lorawan::default_crypto::DefaultFactory as Crypto;
22use lorawan_device::async_device::lora_radio::LoRaRadio;
23use lorawan_device::async_device::{region, Device, JoinMode};
24use lorawan_device::{AppEui, AppKey, DevEui};
25use {defmt_rtt as _, panic_probe as _};
26
27bind_interrupts!(struct Irqs {
28 RNG_LPUART1 => rng::InterruptHandler<peripherals::RNG>;
29});
30
31const LORAWAN_REGION: region::Region = region::Region::EU868; // warning: set this appropriately for the region
32
33#[embassy_executor::main]
34async fn main(_spawner: Spawner) {
35 let mut config = embassy_stm32::Config::default();
36 config.rcc.hsi = true;
37 config.rcc.mux = embassy_stm32::rcc::ClockSrc::HSI;
38 let p = embassy_stm32::init(config);
39
40 let mut spi_config = spi::Config::default();
41 spi_config.frequency = khz(200);
42
43 // SPI for sx1276
44 let spi = spi::Spi::new(p.SPI1, p.PB3, p.PA7, p.PA6, p.DMA1_CH3, p.DMA1_CH2, spi_config);
45
46 let nss = Output::new(p.PA15.degrade(), Level::High, Speed::Low);
47 let reset = Output::new(p.PC0.degrade(), Level::High, Speed::Low);
48
49 let irq_pin = Input::new(p.PB4.degrade(), Pull::Up);
50 let irq = ExtiInput::new(irq_pin, p.EXTI4.degrade());
51
52 let iv = Stm32l0InterfaceVariant::new(nss, reset, irq, None, None).unwrap();
53
54 let lora = {
55 match LoRa::new(SX1276_7_8_9::new(BoardType::Stm32l0Sx1276, spi, iv), true, Delay).await {
56 Ok(l) => l,
57 Err(err) => {
58 info!("Radio error = {}", err);
59 return;
60 }
61 }
62 };
63
64 let radio = LoRaRadio::new(lora);
65 let region: region::Configuration = region::Configuration::new(LORAWAN_REGION);
66 let mut device: Device<_, Crypto, _, _> = Device::new(region, radio, LoraTimer::new(), Rng::new(p.RNG, Irqs));
67
68 defmt::info!("Joining LoRaWAN network");
69
70 // TODO: Adjust the EUI and Keys according to your network credentials
71 match device
72 .join(&JoinMode::OTAA {
73 deveui: DevEui::from([0, 0, 0, 0, 0, 0, 0, 0]),
74 appeui: AppEui::from([0, 0, 0, 0, 0, 0, 0, 0]),
75 appkey: AppKey::from([0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]),
76 })
77 .await
78 {
79 Ok(()) => defmt::info!("LoRaWAN network joined"),
80 Err(err) => {
81 info!("Radio error = {}", err);
82 return;
83 }
84 };
85}