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Add lora-phy examples.

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This commit is contained in:
ceekdee
2023-04-23 18:32:34 -05:00
parent a3f727e2e1
commit 73f25093c7
20 changed files with 1218 additions and 316 deletions
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6
examples/stm32wl/src/bin/lora_lorawan.rs
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@ -1,5 +1,5 @@
//! This example runs on a STM32WL board, which has a builtin Semtech Sx1262 radio.
//! It demonstrates LoRaWAN functionality.
//! It demonstrates LoRaWAN join functionality.
#![no_std]
#![no_main]
#![macro_use]
@ -28,6 +28,8 @@ use lorawan_device::async_device::lora_radio::LoRaRadio;
use lorawan_device::async_device::{region, Device, JoinMode};
use {defmt_rtt as _, panic_probe as _};
const LORAWAN_REGION: region::Region = region::Region::EU868; // warning: set this appropriately for the region
#[embassy_executor::main]
async fn main(_spawner: Spawner) {
let mut config = embassy_stm32::Config::default();
@ -65,7 +67,7 @@ async fn main(_spawner: Spawner) {
}
};
let radio = LoRaRadio::new(lora);
let region: region::Configuration = region::Configuration::new(region::Region::EU868);
let region: region::Configuration = region::Configuration::new(LORAWAN_REGION);
let mut device: Device<_, Crypto, _, _> = Device::new(region, radio, LoraTimer::new(), Rng::new(p.RNG));
defmt::info!("Joining LoRaWAN network");

127
examples/stm32wl/src/bin/lora_p2p_receive.rs Normal file
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@ -0,0 +1,127 @@
//! This example runs on the STM32WL board, which has a builtin Semtech Sx1262 radio.
//! It demonstrates LORA P2P receive functionality in conjunction with the lora_p2p_send example.
#![no_std]
#![no_main]
#![macro_use]
#![feature(type_alias_impl_trait, async_fn_in_trait)]
#![allow(incomplete_features)]
use defmt::info;
use embassy_embedded_hal::adapter::BlockingAsync;
use embassy_executor::Spawner;
use embassy_lora::iv::Stm32wlInterfaceVariant;
use embassy_stm32::dma::NoDma;
use embassy_stm32::gpio::{Level, Output, Pin, Speed};
use embassy_stm32::peripherals::SUBGHZSPI;
use embassy_stm32::rcc::low_level::RccPeripheral;
use embassy_stm32::spi::{BitOrder, Config as SpiConfig, Spi, MODE_0};
use embassy_stm32::time::Hertz;
use embassy_stm32::{interrupt, into_ref, Peripheral};
use embassy_time::{Delay, Duration, Timer};
use lora_phy::mod_params::*;
use lora_phy::sx1261_2::SX1261_2;
use lora_phy::LoRa;
use {defmt_rtt as _, panic_probe as _};
const LORA_FREQUENCY_IN_HZ: u32 = 903_900_000; // warning: set this appropriately for the region
#[embassy_executor::main]
async fn main(_spawner: Spawner) {
let mut config = embassy_stm32::Config::default();
config.rcc.mux = embassy_stm32::rcc::ClockSrc::HSE32;
let p = embassy_stm32::init(config);
let clk = Hertz(core::cmp::min(SUBGHZSPI::frequency().0 / 2, 16_000_000));
let mut spi_config = SpiConfig::default();
spi_config.mode = MODE_0;
spi_config.bit_order = BitOrder::MsbFirst;
let spi = Spi::new_subghz(p.SUBGHZSPI, NoDma, NoDma, clk, spi_config);
let spi = BlockingAsync::new(spi);
let irq = interrupt::take!(SUBGHZ_RADIO);
into_ref!(irq);
// 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(irq, None, Some(ctrl2)).unwrap();
let mut delay = Delay;
let mut lora = {
match LoRa::new(SX1261_2::new(BoardType::Stm32wlSx1262, spi, iv), false, &mut delay).await {
Ok(l) => l,
Err(err) => {
info!("Radio error = {}", err);
return;
}
}
};
let mut debug_indicator = Output::new(p.PB9, Level::Low, Speed::Low);
let mut start_indicator = Output::new(p.PB15, Level::Low, Speed::Low);
start_indicator.set_high();
Timer::after(Duration::from_secs(5)).await;
start_indicator.set_low();
let mut receiving_buffer = [00u8; 100];
let mdltn_params = {
match lora.create_modulation_params(
SpreadingFactor::_10,
Bandwidth::_250KHz,
CodingRate::_4_8,
LORA_FREQUENCY_IN_HZ,
) {
Ok(mp) => mp,
Err(err) => {
info!("Radio error = {}", err);
return;
}
}
};
let rx_pkt_params = {
match lora.create_rx_packet_params(4, false, receiving_buffer.len() as u8, true, false, &mdltn_params) {
Ok(pp) => pp,
Err(err) => {
info!("Radio error = {}", err);
return;
}
}
};
match lora
.prepare_for_rx(&mdltn_params, &rx_pkt_params, None, true, false, 0, 0x00ffffffu32)
.await
{
Ok(()) => {}
Err(err) => {
info!("Radio error = {}", err);
return;
}
};
loop {
receiving_buffer = [00u8; 100];
match lora.rx(&rx_pkt_params, &mut receiving_buffer).await {
Ok((received_len, _rx_pkt_status)) => {
if (received_len == 3)
&& (receiving_buffer[0] == 0x01u8)
&& (receiving_buffer[1] == 0x02u8)
&& (receiving_buffer[2] == 0x03u8)
{
info!("rx successful");
debug_indicator.set_high();
Timer::after(Duration::from_secs(5)).await;
debug_indicator.set_low();
} else {
info!("rx unknown packet");
}
}
Err(err) => info!("rx unsuccessful = {}", err),
}
}
}

9
examples/stm32wl/src/bin/lora_p2p_send.rs
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@ -23,6 +23,8 @@ use lora_phy::sx1261_2::SX1261_2;
use lora_phy::LoRa;
use {defmt_rtt as _, panic_probe as _};
const LORA_FREQUENCY_IN_HZ: u32 = 903_900_000; // warning: set this appropriately for the region
#[embassy_executor::main]
async fn main(_spawner: Spawner) {
let mut config = embassy_stm32::Config::default();
@ -58,7 +60,12 @@ async fn main(_spawner: Spawner) {
};
let mdltn_params = {
match lora.create_modulation_params(SpreadingFactor::_10, Bandwidth::_250KHz, CodingRate::_4_8, 903900000) {
match lora.create_modulation_params(
SpreadingFactor::_10,
Bandwidth::_250KHz,
CodingRate::_4_8,
LORA_FREQUENCY_IN_HZ,
) {
Ok(mp) => mp,
Err(err) => {
info!("Radio error = {}", err);

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