Add external LoRa physical layer functionality.
This commit is contained in:
ceekdee
92
examples/nrf52840/src/bin/lora_cad.rs
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92
examples/nrf52840/src/bin/lora_cad.rs
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//! This example runs on the RAK4631 WisBlock, which has an nRF52840 MCU and Semtech Sx126x radio.
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//! Other nrf/sx126x combinations may work with appropriate pin modifications.
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//! It demonstates LORA CAD 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::GenericSx126xInterfaceVariant;
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use embassy_nrf::gpio::{Input, Level, Output, OutputDrive, Pin as _, Pull};
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use embassy_nrf::{bind_interrupts, peripherals, spim};
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use embassy_time::{Delay, Duration, Timer};
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use lora_phy::mod_params::*;
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use lora_phy::sx1261_2::SX1261_2;
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use lora_phy::LoRa;
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use {defmt_rtt as _, panic_probe as _};
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bind_interrupts!(struct Irqs {
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SPIM1_SPIS1_TWIM1_TWIS1_SPI1_TWI1 => spim::InterruptHandler<peripherals::TWISPI1>;
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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 p = embassy_nrf::init(Default::default());
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let mut spi_config = spim::Config::default();
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spi_config.frequency = spim::Frequency::M16;
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let spim = spim::Spim::new(p.TWISPI1, Irqs, p.P1_11, p.P1_13, p.P1_12, spi_config);
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let nss = Output::new(p.P1_10.degrade(), Level::High, OutputDrive::Standard);
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let reset = Output::new(p.P1_06.degrade(), Level::High, OutputDrive::Standard);
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let dio1 = Input::new(p.P1_15.degrade(), Pull::Down);
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let busy = Input::new(p.P1_14.degrade(), Pull::Down);
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let rf_switch_rx = Output::new(p.P1_05.degrade(), Level::Low, OutputDrive::Standard);
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let rf_switch_tx = Output::new(p.P1_07.degrade(), Level::Low, OutputDrive::Standard);
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let iv =
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GenericSx126xInterfaceVariant::new(nss, reset, dio1, busy, Some(rf_switch_rx), Some(rf_switch_tx)).unwrap();
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let mut delay = Delay;
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let mut lora = {
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match LoRa::new(SX1261_2::new(BoardType::Rak4631Sx1262, spim, iv), false, &mut 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 mut debug_indicator = Output::new(p.P1_03, Level::Low, OutputDrive::Standard);
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let mut start_indicator = Output::new(p.P1_04, Level::Low, OutputDrive::Standard);
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start_indicator.set_high();
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Timer::after(Duration::from_secs(5)).await;
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start_indicator.set_low();
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let mdltn_params = {
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match lora.create_modulation_params(SpreadingFactor::_10, Bandwidth::_250KHz, CodingRate::_4_8, 903900000) {
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Ok(mp) => mp,
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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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match lora.prepare_for_cad(&mdltn_params, true).await {
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Ok(()) => {}
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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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match lora.cad().await {
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Ok(cad_activity_detected) => {
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if cad_activity_detected {
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info!("cad successful with activity detected")
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} else {
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info!("cad successful without activity detected")
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}
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debug_indicator.set_high();
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Timer::after(Duration::from_secs(15)).await;
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debug_indicator.set_low();
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}
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Err(err) => info!("cad unsuccessful = {}", err),
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}
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}
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124
examples/nrf52840/src/bin/lora_p2p_receive_duty_cycle.rs
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124
examples/nrf52840/src/bin/lora_p2p_receive_duty_cycle.rs
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//! This example runs on the RAK4631 WisBlock, which has an nRF52840 MCU and Semtech Sx126x radio.
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//! Other nrf/sx126x combinations may work with appropriate pin modifications.
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//! It demonstates LoRa Rx duty cycle 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::GenericSx126xInterfaceVariant;
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use embassy_nrf::gpio::{Input, Level, Output, OutputDrive, Pin as _, Pull};
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use embassy_nrf::{bind_interrupts, peripherals, spim};
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use embassy_time::{Delay, Duration, Timer};
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use lora_phy::mod_params::*;
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use lora_phy::sx1261_2::SX1261_2;
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use lora_phy::LoRa;
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use {defmt_rtt as _, panic_probe as _};
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bind_interrupts!(struct Irqs {
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SPIM1_SPIS1_TWIM1_TWIS1_SPI1_TWI1 => spim::InterruptHandler<peripherals::TWISPI1>;
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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 p = embassy_nrf::init(Default::default());
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let mut spi_config = spim::Config::default();
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spi_config.frequency = spim::Frequency::M16;
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let spim = spim::Spim::new(p.TWISPI1, Irqs, p.P1_11, p.P1_13, p.P1_12, spi_config);
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let nss = Output::new(p.P1_10.degrade(), Level::High, OutputDrive::Standard);
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let reset = Output::new(p.P1_06.degrade(), Level::High, OutputDrive::Standard);
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let dio1 = Input::new(p.P1_15.degrade(), Pull::Down);
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let busy = Input::new(p.P1_14.degrade(), Pull::Down);
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let rf_switch_rx = Output::new(p.P1_05.degrade(), Level::Low, OutputDrive::Standard);
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let rf_switch_tx = Output::new(p.P1_07.degrade(), Level::Low, OutputDrive::Standard);
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let iv =
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GenericSx126xInterfaceVariant::new(nss, reset, dio1, busy, Some(rf_switch_rx), Some(rf_switch_tx)).unwrap();
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let mut delay = Delay;
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let mut lora = {
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match LoRa::new(SX1261_2::new(BoardType::Rak4631Sx1262, spim, iv), false, &mut 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 mut debug_indicator = Output::new(p.P1_03, Level::Low, OutputDrive::Standard);
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let mut start_indicator = Output::new(p.P1_04, Level::Low, OutputDrive::Standard);
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start_indicator.set_high();
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Timer::after(Duration::from_secs(5)).await;
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start_indicator.set_low();
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let mut receiving_buffer = [00u8; 100];
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let mdltn_params = {
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match lora.create_modulation_params(SpreadingFactor::_10, Bandwidth::_250KHz, CodingRate::_4_8, 903900000) {
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Ok(mp) => mp,
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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 rx_pkt_params = {
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match lora.create_rx_packet_params(4, false, receiving_buffer.len() as u8, true, false, &mdltn_params) {
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Ok(pp) => pp,
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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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// See "RM0453 Reference manual STM32WL5x advanced Arm®-based 32-bit MCUs with sub-GHz radio solution" for the best explanation of Rx duty cycle processing.
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match lora
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.prepare_for_rx(
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&mdltn_params,
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&rx_pkt_params,
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Some(&DutyCycleParams {
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rx_time: 300_000, // 300_000 units * 15.625 us/unit = 4.69 s
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sleep_time: 200_000, // 200_000 units * 15.625 us/unit = 3.13 s
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}),
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false,
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false,
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0,
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0,
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)
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.await
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{
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Ok(()) => {}
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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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receiving_buffer = [00u8; 100];
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match lora.rx(&rx_pkt_params, &mut receiving_buffer).await {
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Ok((received_len, _rx_pkt_status)) => {
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if (received_len == 3)
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&& (receiving_buffer[0] == 0x01u8)
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&& (receiving_buffer[1] == 0x02u8)
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&& (receiving_buffer[2] == 0x03u8)
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{
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info!("rx successful");
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debug_indicator.set_high();
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Timer::after(Duration::from_secs(5)).await;
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debug_indicator.set_low();
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} else {
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info!("rx unknown packet")
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}
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}
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Err(err) => info!("rx unsuccessful = {}", err),
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}
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}
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@ -1,81 +0,0 @@
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//! This example runs on the RAK4631 WisBlock, which has an nRF52840 MCU and Semtech Sx126x radio.
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//! Other nrf/sx126x combinations may work with appropriate pin modifications.
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//! It demonstates LORA P2P functionality in conjunction with example lora_p2p_sense.rs.
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#![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 defmt::*;
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use embassy_executor::Spawner;
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use embassy_lora::sx126x::*;
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use embassy_nrf::gpio::{Input, Level, Output, OutputDrive, Pin as _, Pull};
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use embassy_nrf::{bind_interrupts, peripherals, spim};
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use embassy_time::{Duration, Timer};
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use lorawan_device::async_device::radio::{Bandwidth, CodingRate, PhyRxTx, RfConfig, SpreadingFactor};
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use {defmt_rtt as _, panic_probe as _};
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bind_interrupts!(struct Irqs {
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SPIM1_SPIS1_TWIM1_TWIS1_SPI1_TWI1 => spim::InterruptHandler<peripherals::TWISPI1>;
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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 p = embassy_nrf::init(Default::default());
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let mut spi_config = spim::Config::default();
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spi_config.frequency = spim::Frequency::M16;
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let mut radio = {
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let spim = spim::Spim::new(p.TWISPI1, Irqs, p.P1_11, p.P1_13, p.P1_12, spi_config);
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let cs = Output::new(p.P1_10.degrade(), Level::High, OutputDrive::Standard);
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let reset = Output::new(p.P1_06.degrade(), Level::High, OutputDrive::Standard);
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let dio1 = Input::new(p.P1_15.degrade(), Pull::Down);
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let busy = Input::new(p.P1_14.degrade(), Pull::Down);
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let antenna_rx = Output::new(p.P1_05.degrade(), Level::Low, OutputDrive::Standard);
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let antenna_tx = Output::new(p.P1_07.degrade(), Level::Low, OutputDrive::Standard);
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match Sx126xRadio::new(spim, cs, reset, antenna_rx, antenna_tx, dio1, busy, false).await {
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Ok(r) => r,
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Err(err) => {
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info!("Sx126xRadio error = {}", err);
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return;
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}
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}
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};
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let mut debug_indicator = Output::new(p.P1_03, Level::Low, OutputDrive::Standard);
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let mut start_indicator = Output::new(p.P1_04, Level::Low, OutputDrive::Standard);
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start_indicator.set_high();
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Timer::after(Duration::from_secs(5)).await;
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start_indicator.set_low();
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loop {
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let rf_config = RfConfig {
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frequency: 903900000, // channel in Hz
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bandwidth: Bandwidth::_250KHz,
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spreading_factor: SpreadingFactor::_10,
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coding_rate: CodingRate::_4_8,
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};
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let mut buffer = [00u8; 100];
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// P2P receive
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match radio.rx(rf_config, &mut buffer).await {
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Ok((buffer_len, rx_quality)) => info!(
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"RX received = {:?} with length = {} rssi = {} snr = {}",
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&buffer[0..buffer_len],
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buffer_len,
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rx_quality.rssi(),
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rx_quality.snr()
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),
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Err(err) => info!("RX error = {}", err),
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}
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debug_indicator.set_high();
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Timer::after(Duration::from_secs(2)).await;
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debug_indicator.set_low();
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}
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}
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