96 lines
3.5 KiB
Rust
96 lines
3.5 KiB
Rust
//! This example runs on a STM32WL board, which has a builtin Semtech Sx1262 radio.
|
|
//! It demonstrates LoRaWAN join functionality.
|
|
#![no_std]
|
|
#![no_main]
|
|
#![macro_use]
|
|
#![feature(type_alias_impl_trait, async_fn_in_trait)]
|
|
#![allow(stable_features, unknown_lints, async_fn_in_trait)]
|
|
|
|
use defmt::info;
|
|
use embassy_executor::Spawner;
|
|
use embassy_lora::iv::{InterruptHandler, Stm32wlInterfaceVariant};
|
|
use embassy_lora::LoraTimer;
|
|
use embassy_stm32::gpio::{Level, Output, Pin, Speed};
|
|
use embassy_stm32::rng::{self, Rng};
|
|
use embassy_stm32::spi::Spi;
|
|
use embassy_stm32::time::Hertz;
|
|
use embassy_stm32::{bind_interrupts, peripherals};
|
|
use embassy_time::Delay;
|
|
use lora_phy::mod_params::*;
|
|
use lora_phy::sx1261_2::SX1261_2;
|
|
use lora_phy::LoRa;
|
|
use lorawan::default_crypto::DefaultFactory as Crypto;
|
|
use lorawan_device::async_device::lora_radio::LoRaRadio;
|
|
use lorawan_device::async_device::{region, Device, JoinMode};
|
|
use lorawan_device::{AppEui, AppKey, DevEui};
|
|
use {defmt_rtt as _, panic_probe as _};
|
|
|
|
const LORAWAN_REGION: region::Region = region::Region::EU868; // warning: set this appropriately for the region
|
|
|
|
bind_interrupts!(struct Irqs{
|
|
SUBGHZ_RADIO => InterruptHandler;
|
|
RNG => rng::InterruptHandler<peripherals::RNG>;
|
|
});
|
|
|
|
#[embassy_executor::main]
|
|
async fn main(_spawner: Spawner) {
|
|
let mut config = embassy_stm32::Config::default();
|
|
{
|
|
use embassy_stm32::rcc::*;
|
|
config.rcc.hse = Some(Hse {
|
|
freq: Hertz(32_000_000),
|
|
mode: HseMode::Bypass,
|
|
prescaler: HsePrescaler::DIV1,
|
|
});
|
|
config.rcc.mux = ClockSrc::PLL1_R;
|
|
config.rcc.pll = Some(Pll {
|
|
source: PllSource::HSE,
|
|
prediv: PllPreDiv::DIV2,
|
|
mul: PllMul::MUL6,
|
|
divp: None,
|
|
divq: Some(PllQDiv::DIV2), // PLL1_Q clock (32 / 2 * 6 / 2), used for RNG
|
|
divr: Some(PllRDiv::DIV2), // sysclk 48Mhz clock (32 / 2 * 6 / 2)
|
|
});
|
|
}
|
|
let p = embassy_stm32::init(config);
|
|
|
|
let spi = Spi::new_subghz(p.SUBGHZSPI, p.DMA1_CH1, p.DMA1_CH2);
|
|
|
|
// Set CTRL1 and CTRL3 for high-power transmission, while CTRL2 acts as an RF switch between tx and rx
|
|
let _ctrl1 = Output::new(p.PC4.degrade(), Level::Low, Speed::High);
|
|
let ctrl2 = Output::new(p.PC5.degrade(), Level::High, Speed::High);
|
|
let _ctrl3 = Output::new(p.PC3.degrade(), Level::High, Speed::High);
|
|
let iv = Stm32wlInterfaceVariant::new(Irqs, None, Some(ctrl2)).unwrap();
|
|
|
|
let lora = {
|
|
match LoRa::new(SX1261_2::new(BoardType::Stm32wlSx1262, spi, iv), true, Delay).await {
|
|
Ok(l) => l,
|
|
Err(err) => {
|
|
info!("Radio error = {}", err);
|
|
return;
|
|
}
|
|
}
|
|
};
|
|
let radio = LoRaRadio::new(lora);
|
|
let region: region::Configuration = region::Configuration::new(LORAWAN_REGION);
|
|
let mut device: Device<_, Crypto, _, _> = Device::new(region, radio, LoraTimer::new(), Rng::new(p.RNG, Irqs));
|
|
|
|
defmt::info!("Joining LoRaWAN network");
|
|
|
|
// TODO: Adjust the EUI and Keys according to your network credentials
|
|
match device
|
|
.join(&JoinMode::OTAA {
|
|
deveui: DevEui::from([0, 0, 0, 0, 0, 0, 0, 0]),
|
|
appeui: AppEui::from([0, 0, 0, 0, 0, 0, 0, 0]),
|
|
appkey: AppKey::from([0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]),
|
|
})
|
|
.await
|
|
{
|
|
Ok(()) => defmt::info!("LoRaWAN network joined"),
|
|
Err(err) => {
|
|
info!("Radio error = {}", err);
|
|
return;
|
|
}
|
|
};
|
|
}
|