104 lines
3.4 KiB
Rust
104 lines
3.4 KiB
Rust
#![no_std]
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#![no_main]
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#![macro_use]
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#![allow(dead_code)]
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#![feature(type_alias_impl_trait)]
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use embassy_executor::Spawner;
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use embassy_lora::stm32wl::*;
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use embassy_lora::LoraTimer;
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use embassy_stm32::dma::NoDma;
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use embassy_stm32::gpio::{AnyPin, Level, Output, Pin, Speed};
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use embassy_stm32::rng::Rng;
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use embassy_stm32::subghz::*;
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use embassy_stm32::{interrupt, pac};
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use lorawan::default_crypto::DefaultFactory as Crypto;
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use lorawan_device::async_device::{region, Device, JoinMode};
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use {defmt_rtt as _, panic_probe as _};
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struct RadioSwitch<'a> {
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ctrl1: Output<'a, AnyPin>,
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ctrl2: Output<'a, AnyPin>,
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ctrl3: Output<'a, AnyPin>,
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}
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impl<'a> RadioSwitch<'a> {
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fn new(ctrl1: Output<'a, AnyPin>, ctrl2: Output<'a, AnyPin>, ctrl3: Output<'a, AnyPin>) -> Self {
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Self { ctrl1, ctrl2, ctrl3 }
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}
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}
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impl<'a> embassy_lora::stm32wl::RadioSwitch for RadioSwitch<'a> {
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fn set_rx(&mut self) {
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self.ctrl1.set_high();
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self.ctrl2.set_low();
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self.ctrl3.set_high();
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}
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fn set_tx(&mut self) {
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self.ctrl1.set_high();
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self.ctrl2.set_high();
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self.ctrl3.set_high();
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}
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}
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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::HSI16;
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config.rcc.enable_lsi = true;
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let p = embassy_stm32::init(config);
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unsafe { pac::RCC.ccipr().modify(|w| w.set_rngsel(0b01)) }
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let ctrl1 = Output::new(p.PC3.degrade(), Level::High, Speed::High);
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let ctrl2 = Output::new(p.PC4.degrade(), Level::High, Speed::High);
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let ctrl3 = Output::new(p.PC5.degrade(), Level::High, Speed::High);
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let rfs = RadioSwitch::new(ctrl1, ctrl2, ctrl3);
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let radio = SubGhz::new(p.SUBGHZSPI, NoDma, NoDma);
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let irq = interrupt::take!(SUBGHZ_RADIO);
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let mut radio_config = SubGhzRadioConfig::default();
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radio_config.calibrate_image = CalibrateImage::ISM_863_870;
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let radio = SubGhzRadio::new(radio, rfs, irq, radio_config).unwrap();
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let mut region: region::Configuration = region::EU868::default().into();
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// NOTE: This is specific for TTN, as they have a special RX1 delay
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region.set_receive_delay1(5000);
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let mut device: Device<_, Crypto, _, _> = Device::new(region, radio, LoraTimer::new(), Rng::new(p.RNG));
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// Depending on network, this might be part of JOIN
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device.set_datarate(region::DR::_0); // SF12
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// device.set_datarate(region::DR::_1); // SF11
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// device.set_datarate(region::DR::_2); // SF10
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// device.set_datarate(region::DR::_3); // SF9
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// device.set_datarate(region::DR::_4); // SF8
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// device.set_datarate(region::DR::_5); // SF7
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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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device
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.join(&JoinMode::OTAA {
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deveui: [0, 0, 0, 0, 0, 0, 0, 0],
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appeui: [0, 0, 0, 0, 0, 0, 0, 0],
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appkey: [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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.ok()
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.unwrap();
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defmt::info!("LoRaWAN network joined");
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let mut rx: [u8; 255] = [0; 255];
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defmt::info!("Sending 'PING'");
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let len = device.send_recv(b"PING", &mut rx[..], 1, true).await.ok().unwrap();
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if len > 0 {
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defmt::info!("Message sent, received downlink: {:?}", &rx[..len]);
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} else {
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defmt::info!("Message sent!");
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}
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}
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