Merge #514

514: Refactor sx127x driver to use async SPI r=lulf a=lulf

It also contains a fix to SPI DMA transfer/read_write operations to ensure MISO doesn't contain any old data.

Co-authored-by: Ulf Lilleengen <[email protected]>

8 files changed, 269 insertions, 233 deletions

diff --git a/embassy-lora/Cargo.toml b/embassy-lora/Cargo.toml
index fa46d43f5..024eb6aaf 100644
--- a/embassy-lora/Cargo.toml
+++ b/embassy-lora/Cargo.toml
@@ -23,5 +23,5 @@ futures = { version = "0.3.17", default-features = false, features = [ "async-aw
 embedded-hal = { version = "0.2", features = ["unproven"] }
 bit_field = { version = "0.10" }
 
-lorawan-device = { git = "https://github.com/ivajloip/rust-lorawan.git", rev = "4bff2e0021103adfbccedcbf49dbcd0474adc4b2", default-features = false, features = ["async"] }
-lorawan-encoding = { git = "https://github.com/ivajloip/rust-lorawan.git", rev = "4bff2e0021103adfbccedcbf49dbcd0474adc4b2", default-features = false }
+lorawan-device = { git = "https://github.com/ivajloip/rust-lorawan.git", rev = "53d2feb43e2f3ddcdc55f0587391b0d3f02d8d93", default-features = false, features = ["async"] }
+lorawan-encoding = { git = "https://github.com/ivajloip/rust-lorawan.git", rev = "53d2feb43e2f3ddcdc55f0587391b0d3f02d8d93", default-features = false }
diff --git a/embassy-lora/src/sx127x/mod.rs b/embassy-lora/src/sx127x/mod.rs
index a9736b85f..7d3280e05 100644
--- a/embassy-lora/src/sx127x/mod.rs
+++ b/embassy-lora/src/sx127x/mod.rs
@@ -1,7 +1,6 @@
 use core::future::Future;
 use embassy::traits::gpio::WaitForRisingEdge;
-use embedded_hal::blocking::delay::DelayMs;
-use embedded_hal::blocking::spi::{Transfer, Write};
+use embassy::traits::spi::*;
 use embedded_hal::digital::v2::OutputPin;
 use lorawan_device::async_device::{
     radio::{Bandwidth, PhyRxTx, RfConfig, RxQuality, SpreadingFactor, TxConfig},
@@ -21,7 +20,7 @@ pub trait RadioSwitch {
 /// Semtech Sx127x radio peripheral
 pub struct Sx127xRadio<SPI, CS, RESET, E, I, RFS>
 where
-    SPI: Transfer<u8, Error = E> + Write<u8, Error = E> + 'static,
+    SPI: FullDuplex<u8, Error = E> + 'static,
     E: 'static,
     CS: OutputPin + 'static,
     RESET: OutputPin + 'static,
@@ -43,29 +42,29 @@ pub enum State {
 
 impl<SPI, CS, RESET, E, I, RFS> Sx127xRadio<SPI, CS, RESET, E, I, RFS>
 where
-    SPI: Transfer<u8, Error = E> + Write<u8, Error = E> + 'static,
+    SPI: FullDuplex<u8, Error = E> + 'static,
     CS: OutputPin + 'static,
     RESET: OutputPin + 'static,
     I: WaitForRisingEdge + 'static,
     RFS: RadioSwitch + 'static,
+    E: 'static,
 {
-    pub fn new<D: DelayMs<u32>>(
+    pub async fn new(
         spi: SPI,
         cs: CS,
         reset: RESET,
         irq: I,
         rfs: RFS,
-        d: &mut D,
     ) -> Result<Self, RadioError<E, CS::Error, RESET::Error>> {
         let mut radio = LoRa::new(spi, cs, reset);
-        radio.reset(d)?;
+        radio.reset().await?;
         Ok(Self { radio, irq, rfs })
     }
 }
 
 impl<SPI, CS, RESET, E, I, RFS> Timings for Sx127xRadio<SPI, CS, RESET, E, I, RFS>
 where
-    SPI: Transfer<u8, Error = E> + Write<u8, Error = E> + 'static,
+    SPI: FullDuplex<u8, Error = E> + 'static,
     CS: OutputPin + 'static,
     RESET: OutputPin + 'static,
     I: WaitForRisingEdge + 'static,
@@ -81,7 +80,7 @@ where
 
 impl<SPI, CS, RESET, E, I, RFS> PhyRxTx for Sx127xRadio<SPI, CS, RESET, E, I, RFS>
 where
-    SPI: Transfer<u8, Error = E> + Write<u8, Error = E> + 'static,
+    SPI: FullDuplex<u8, Error = E> + 'static,
     CS: OutputPin + 'static,
     E: 'static,
     RESET: OutputPin + 'static,
@@ -96,29 +95,33 @@ where
     fn tx<'m>(&'m mut self, config: TxConfig, buf: &'m [u8]) -> Self::TxFuture<'m> {
         trace!("TX START");
         async move {
+            self.radio.set_mode(RadioMode::Stdby).await.ok().unwrap();
             self.rfs.set_tx();
-            self.radio.set_tx_power(14, 0)?;
-            self.radio.set_frequency(config.rf.frequency)?;
+            self.radio.set_tx_power(14, 0).await?;
+            self.radio.set_frequency(config.rf.frequency).await?;
             // TODO: Modify radio to support other coding rates
-            self.radio.set_coding_rate_4(5)?;
+            self.radio.set_coding_rate_4(5).await?;
             self.radio
-                .set_signal_bandwidth(bandwidth_to_i64(config.rf.bandwidth))?;
+                .set_signal_bandwidth(bandwidth_to_i64(config.rf.bandwidth))
+                .await?;
             self.radio
-                .set_spreading_factor(spreading_factor_to_u8(config.rf.spreading_factor))?;
+                .set_spreading_factor(spreading_factor_to_u8(config.rf.spreading_factor))
+                .await?;
+
+            self.radio.set_preamble_length(8).await?;
+            self.radio.set_lora_pa_ramp().await?;
+            self.radio.set_lora_sync_word().await?;
+            self.radio.set_invert_iq(false).await?;
+            self.radio.set_crc(true).await?;
 
-            self.radio.set_preamble_length(8)?;
-            self.radio.set_lora_pa_ramp()?;
-            self.radio.set_lora_sync_word()?;
-            self.radio.set_invert_iq(false)?;
-            self.radio.set_crc(true)?;
+            self.radio.set_dio0_tx_done().await?;
 
-            self.radio.set_dio0_tx_done()?;
-            self.radio.transmit_payload(buf)?;
+            self.radio.transmit_start(buf).await?;
 
             loop {
                 self.irq.wait_for_rising_edge().await;
-                self.radio.set_mode(RadioMode::Stdby).ok().unwrap();
-                let irq = self.radio.clear_irq().ok().unwrap();
+                self.radio.set_mode(RadioMode::Stdby).await.ok().unwrap();
+                let irq = self.radio.clear_irq().await.ok().unwrap();
                 if (irq & IRQ::IrqTxDoneMask.addr()) != 0 {
                     trace!("TX DONE");
                     return Ok(0);
@@ -134,32 +137,34 @@ where
         trace!("RX START");
         async move {
             self.rfs.set_rx();
-            self.radio.reset_payload_length()?;
-            self.radio.set_frequency(config.frequency)?;
+            self.radio.reset_payload_length().await?;
+            self.radio.set_frequency(config.frequency).await?;
             // TODO: Modify radio to support other coding rates
-            self.radio.set_coding_rate_4(5)?;
+            self.radio.set_coding_rate_4(5).await?;
             self.radio
-                .set_signal_bandwidth(bandwidth_to_i64(config.bandwidth))?;
+                .set_signal_bandwidth(bandwidth_to_i64(config.bandwidth))
+                .await?;
             self.radio
-                .set_spreading_factor(spreading_factor_to_u8(config.spreading_factor))?;
+                .set_spreading_factor(spreading_factor_to_u8(config.spreading_factor))
+                .await?;
 
-            self.radio.set_preamble_length(8)?;
-            self.radio.set_lora_sync_word()?;
-            self.radio.set_invert_iq(true)?;
-            self.radio.set_crc(true)?;
+            self.radio.set_preamble_length(8).await?;
+            self.radio.set_lora_sync_word().await?;
+            self.radio.set_invert_iq(true).await?;
+            self.radio.set_crc(true).await?;
 
-            self.radio.set_dio0_rx_done()?;
-            self.radio.set_mode(RadioMode::RxContinuous)?;
+            self.radio.set_dio0_rx_done().await?;
+            self.radio.set_mode(RadioMode::RxContinuous).await?;
 
             loop {
                 self.irq.wait_for_rising_edge().await;
-                self.radio.set_mode(RadioMode::Stdby).ok().unwrap();
-                let irq = self.radio.clear_irq().ok().unwrap();
+                self.radio.set_mode(RadioMode::Stdby).await.ok().unwrap();
+                let irq = self.radio.clear_irq().await.ok().unwrap();
                 if (irq & IRQ::IrqRxDoneMask.addr()) != 0 {
-                    let rssi = self.radio.get_packet_rssi().unwrap_or(0) as i16;
-                    let snr = self.radio.get_packet_snr().unwrap_or(0.0) as i8;
-                    let response = if let Ok(size) = self.radio.read_packet_size() {
-                        self.radio.read_packet(buf)?;
+                    let rssi = self.radio.get_packet_rssi().await.unwrap_or(0) as i16;
+                    let snr = self.radio.get_packet_snr().await.unwrap_or(0.0) as i8;
+                    let response = if let Ok(size) = self.radio.read_packet_size().await {
+                        self.radio.read_packet(buf).await?;
                         Ok((size, RxQuality::new(rssi, snr)))
                     } else {
                         Ok((0, RxQuality::new(rssi, snr)))
diff --git a/embassy-lora/src/sx127x/sx127x_lora/mod.rs b/embassy-lora/src/sx127x/sx127x_lora/mod.rs
index c541815fe..a903779ca 100644
--- a/embassy-lora/src/sx127x/sx127x_lora/mod.rs
+++ b/embassy-lora/src/sx127x/sx127x_lora/mod.rs
@@ -6,24 +6,15 @@
 #![allow(dead_code)]
 
 use bit_field::BitField;
-use embedded_hal::blocking::{
-    delay::DelayMs,
-    spi::{Transfer, Write},
-};
+use embassy::time::{Duration, Timer};
+use embassy::traits::spi::*;
 use embedded_hal::digital::v2::OutputPin;
-use embedded_hal::spi::{Mode, Phase, Polarity};
 
 mod register;
 use self::register::PaConfig;
 use self::register::Register;
 pub use self::register::IRQ;
 
-/// Provides the necessary SPI mode configuration for the radio
-pub const MODE: Mode = Mode {
-    phase: Phase::CaptureOnSecondTransition,
-    polarity: Polarity::IdleHigh,
-};
-
 /// Provides high-level access to Semtech SX1276/77/78/79 based boards connected to a Raspberry Pi
 pub struct LoRa<SPI, CS, RESET> {
     spi: SPI,
@@ -56,7 +47,7 @@ const VERSION_CHECK: u8 = 0x09;
 
 impl<SPI, CS, RESET, E> LoRa<SPI, CS, RESET>
 where
-    SPI: Transfer<u8, Error = E> + Write<u8, Error = E>,
+    SPI: FullDuplex<u8, Error = E>,
     CS: OutputPin,
     RESET: OutputPin,
 {
@@ -72,24 +63,25 @@ where
         }
     }
 
-    pub fn reset<D: DelayMs<u32>>(
-        &mut self,
-        d: &mut D,
-    ) -> Result<(), Error<E, CS::Error, RESET::Error>> {
+    pub async fn reset(&mut self) -> Result<(), Error<E, CS::Error, RESET::Error>> {
         self.reset.set_low().map_err(Reset)?;
-        d.delay_ms(10_u32);
+        Timer::after(Duration::from_millis(10)).await;
         self.reset.set_high().map_err(Reset)?;
-        d.delay_ms(10_u32);
-        let version = self.read_register(Register::RegVersion.addr())?;
+        Timer::after(Duration::from_millis(10)).await;
+        let version = self.read_register(Register::RegVersion.addr()).await?;
         if version == VERSION_CHECK {
-            self.set_mode(RadioMode::Sleep)?;
-            self.write_register(Register::RegFifoTxBaseAddr.addr(), 0)?;
-            self.write_register(Register::RegFifoRxBaseAddr.addr(), 0)?;
-            let lna = self.read_register(Register::RegLna.addr())?;
-            self.write_register(Register::RegLna.addr(), lna | 0x03)?;
-            self.write_register(Register::RegModemConfig3.addr(), 0x04)?;
-            self.set_tcxo(true)?;
-            self.set_mode(RadioMode::Stdby)?;
+            self.set_mode(RadioMode::Sleep).await?;
+            self.write_register(Register::RegFifoTxBaseAddr.addr(), 0)
+                .await?;
+            self.write_register(Register::RegFifoRxBaseAddr.addr(), 0)
+                .await?;
+            let lna = self.read_register(Register::RegLna.addr()).await?;
+            self.write_register(Register::RegLna.addr(), lna | 0x03)
+                .await?;
+            self.write_register(Register::RegModemConfig3.addr(), 0x04)
+                .await?;
+            self.set_tcxo(true).await?;
+            self.set_mode(RadioMode::Stdby).await?;
             self.cs.set_high().map_err(CS)?;
             Ok(())
         } else {
@@ -97,137 +89,125 @@ where
         }
     }
 
-    /// Transmits up to 255 bytes of data. To avoid the use of an allocator, this takes a fixed 255 u8
-    /// array and a payload size and returns the number of bytes sent if successful.
-    pub fn transmit_payload_busy(
-        &mut self,
-        buffer: [u8; 255],
-        payload_size: usize,
-    ) -> Result<usize, Error<E, CS::Error, RESET::Error>> {
-        if self.transmitting()? {
-            Err(Transmitting)
-        } else {
-            self.set_mode(RadioMode::Stdby)?;
-            if self.explicit_header {
-                self.set_explicit_header_mode()?;
-            } else {
-                self.set_implicit_header_mode()?;
-            }
-
-            self.write_register(Register::RegIrqFlags.addr(), 0)?;
-            self.write_register(Register::RegFifoAddrPtr.addr(), 0)?;
-            self.write_register(Register::RegPayloadLength.addr(), 0)?;
-            for byte in buffer.iter().take(payload_size) {
-                self.write_register(Register::RegFifo.addr(), *byte)?;
-            }
-            self.write_register(Register::RegPayloadLength.addr(), payload_size as u8)?;
-            self.set_mode(RadioMode::Tx)?;
-            while self.transmitting()? {}
-            Ok(payload_size)
-        }
-    }
-
-    pub fn set_dio0_tx_done(&mut self) -> Result<(), Error<E, CS::Error, RESET::Error>> {
-        self.write_register(Register::RegIrqFlagsMask.addr(), 0b1111_0111)?;
-        let mapping = self.read_register(Register::RegDioMapping1.addr())?;
+    pub async fn set_dio0_tx_done(&mut self) -> Result<(), Error<E, CS::Error, RESET::Error>> {
+        self.write_register(Register::RegIrqFlagsMask.addr(), 0b1111_0111)
+            .await?;
+        let mapping = self.read_register(Register::RegDioMapping1.addr()).await?;
         self.write_register(Register::RegDioMapping1.addr(), (mapping & 0x3F) | 0x40)
+            .await
     }
 
-    pub fn set_dio0_rx_done(&mut self) -> Result<(), Error<E, CS::Error, RESET::Error>> {
-        self.write_register(Register::RegIrqFlagsMask.addr(), 0b0001_1111)?;
-        let mapping = self.read_register(Register::RegDioMapping1.addr())?;
+    pub async fn set_dio0_rx_done(&mut self) -> Result<(), Error<E, CS::Error, RESET::Error>> {
+        self.write_register(Register::RegIrqFlagsMask.addr(), 0b0001_1111)
+            .await?;
+        let mapping = self.read_register(Register::RegDioMapping1.addr()).await?;
         self.write_register(Register::RegDioMapping1.addr(), mapping & 0x3F)
+            .await
     }
 
-    pub fn transmit_payload(
+    pub async fn transmit_start(
         &mut self,
         buffer: &[u8],
     ) -> Result<(), Error<E, CS::Error, RESET::Error>> {
         assert!(buffer.len() < 255);
-        if self.transmitting()? {
+        if self.transmitting().await? {
+            //trace!("ALREADY TRANSMNITTING");
             Err(Transmitting)
         } else {
-            self.set_mode(RadioMode::Stdby)?;
+            self.set_mode(RadioMode::Stdby).await?;
             if self.explicit_header {
-                self.set_explicit_header_mode()?;
+                self.set_explicit_header_mode().await?;
             } else {
-                self.set_implicit_header_mode()?;
+                self.set_implicit_header_mode().await?;
             }
 
-            self.write_register(Register::RegIrqFlags.addr(), 0)?;
-            self.write_register(Register::RegFifoAddrPtr.addr(), 0)?;
-            self.write_register(Register::RegPayloadLength.addr(), 0)?;
+            self.write_register(Register::RegIrqFlags.addr(), 0).await?;
+            self.write_register(Register::RegFifoAddrPtr.addr(), 0)
+                .await?;
+            self.write_register(Register::RegPayloadLength.addr(), 0)
+                .await?;
             for byte in buffer.iter() {
-                self.write_register(Register::RegFifo.addr(), *byte)?;
+                self.write_register(Register::RegFifo.addr(), *byte).await?;
             }
-            self.write_register(Register::RegPayloadLength.addr(), buffer.len() as u8)?;
-            self.set_mode(RadioMode::Tx)?;
+            self.write_register(Register::RegPayloadLength.addr(), buffer.len() as u8)
+                .await?;
+            self.set_mode(RadioMode::Tx).await?;
             Ok(())
         }
     }
 
-    pub fn packet_ready(&mut self) -> Result<bool, Error<E, CS::Error, RESET::Error>> {
-        Ok(self.read_register(Register::RegIrqFlags.addr())?.get_bit(6))
+    pub async fn packet_ready(&mut self) -> Result<bool, Error<E, CS::Error, RESET::Error>> {
+        Ok(self
+            .read_register(Register::RegIrqFlags.addr())
+            .await?
+            .get_bit(6))
     }
 
-    pub fn irq_flags_mask(&mut self) -> Result<u8, Error<E, CS::Error, RESET::Error>> {
-        Ok(self.read_register(Register::RegIrqFlagsMask.addr())? as u8)
+    pub async fn irq_flags_mask(&mut self) -> Result<u8, Error<E, CS::Error, RESET::Error>> {
+        Ok(self.read_register(Register::RegIrqFlagsMask.addr()).await? as u8)
     }
 
-    pub fn irq_flags(&mut self) -> Result<u8, Error<E, CS::Error, RESET::Error>> {
-        Ok(self.read_register(Register::RegIrqFlags.addr())? as u8)
+    pub async fn irq_flags(&mut self) -> Result<u8, Error<E, CS::Error, RESET::Error>> {
+        Ok(self.read_register(Register::RegIrqFlags.addr()).await? as u8)
     }
 
-    pub fn read_packet_size(&mut self) -> Result<usize, Error<E, CS::Error, RESET::Error>> {
-        let size = self.read_register(Register::RegRxNbBytes.addr())?;
+    pub async fn read_packet_size(&mut self) -> Result<usize, Error<E, CS::Error, RESET::Error>> {
+        let size = self.read_register(Register::RegRxNbBytes.addr()).await?;
         Ok(size as usize)
     }
 
     /// Returns the contents of the fifo as a fixed 255 u8 array. This should only be called is there is a
     /// new packet ready to be read.
-    pub fn read_packet(
+    pub async fn read_packet(
         &mut self,
         buffer: &mut [u8],
     ) -> Result<(), Error<E, CS::Error, RESET::Error>> {
-        self.clear_irq()?;
-        let size = self.read_register(Register::RegRxNbBytes.addr())?;
+        self.clear_irq().await?;
+        let size = self.read_register(Register::RegRxNbBytes.addr()).await?;
         assert!(size as usize <= buffer.len());
-        let fifo_addr = self.read_register(Register::RegFifoRxCurrentAddr.addr())?;
-        self.write_register(Register::RegFifoAddrPtr.addr(), fifo_addr)?;
+        let fifo_addr = self
+            .read_register(Register::RegFifoRxCurrentAddr.addr())
+            .await?;
+        self.write_register(Register::RegFifoAddrPtr.addr(), fifo_addr)
+            .await?;
         for i in 0..size {
-            let byte = self.read_register(Register::RegFifo.addr())?;
+            let byte = self.read_register(Register::RegFifo.addr()).await?;
             buffer[i as usize] = byte;
         }
-        self.write_register(Register::RegFifoAddrPtr.addr(), 0)?;
+        self.write_register(Register::RegFifoAddrPtr.addr(), 0)
+            .await?;
         Ok(())
     }
 
     /// Returns true if the radio is currently transmitting a packet.
-    pub fn transmitting(&mut self) -> Result<bool, Error<E, CS::Error, RESET::Error>> {
-        if (self.read_register(Register::RegOpMode.addr())? & RadioMode::Tx.addr())
+    pub async fn transmitting(&mut self) -> Result<bool, Error<E, CS::Error, RESET::Error>> {
+        if (self.read_register(Register::RegOpMode.addr()).await?) & RadioMode::Tx.addr()
             == RadioMode::Tx.addr()
         {
             Ok(true)
         } else {
-            if (self.read_register(Register::RegIrqFlags.addr())? & IRQ::IrqTxDoneMask.addr()) == 1
+            if (self.read_register(Register::RegIrqFlags.addr()).await? & IRQ::IrqTxDoneMask.addr())
+                == 1
             {
-                self.write_register(Register::RegIrqFlags.addr(), IRQ::IrqTxDoneMask.addr())?;
+                self.write_register(Register::RegIrqFlags.addr(), IRQ::IrqTxDoneMask.addr())
+                    .await?;
             }
             Ok(false)
         }
     }
 
     /// Clears the radio's IRQ registers.
-    pub fn clear_irq(&mut self) -> Result<u8, Error<E, CS::Error, RESET::Error>> {
-        let irq_flags = self.read_register(Register::RegIrqFlags.addr())?;
-        self.write_register(Register::RegIrqFlags.addr(), 0xFF)?;
+    pub async fn clear_irq(&mut self) -> Result<u8, Error<E, CS::Error, RESET::Error>> {
+        let irq_flags = self.read_register(Register::RegIrqFlags.addr()).await?;
+        self.write_register(Register::RegIrqFlags.addr(), 0xFF)
+            .await?;
         Ok(irq_flags)
     }
 
     /// Sets the transmit power and pin. Levels can range from 0-14 when the output
     /// pin = 0(RFO), and form 0-20 when output pin = 1(PaBoost). Power is in dB.
     /// Default value is `17`.
-    pub fn set_tx_power(
+    pub async fn set_tx_power(
         &mut self,
         mut level: i32,
         output_pin: u8,
@@ -240,6 +220,7 @@ where
                 level = 14;
             }
             self.write_register(Register::RegPaConfig.addr(), (0x70 | level) as u8)
+                .await
         } else {
             // PA BOOST
             if level > 17 {
@@ -250,30 +231,31 @@ where
                 level -= 3;
 
                 // High Power +20 dBm Operation (Semtech SX1276/77/78/79 5.4.3.)
-                self.write_register(Register::RegPaDac.addr(), 0x87)?;
-                self.set_ocp(140)?;
+                self.write_register(Register::RegPaDac.addr(), 0x87).await?;
+                self.set_ocp(140).await?;
             } else {
                 if level < 2 {
                     level = 2;
                 }
                 //Default value PA_HF/LF or +17dBm
-                self.write_register(Register::RegPaDac.addr(), 0x84)?;
-                self.set_ocp(100)?;
+                self.write_register(Register::RegPaDac.addr(), 0x84).await?;
+                self.set_ocp(100).await?;
             }
             level -= 2;
             self.write_register(
                 Register::RegPaConfig.addr(),
                 PaConfig::PaBoost.addr() | level as u8,
             )
+            .await
         }
     }
 
-    pub fn get_modem_stat(&mut self) -> Result<u8, Error<E, CS::Error, RESET::Error>> {
-        Ok(self.read_register(Register::RegModemStat.addr())? as u8)
+    pub async fn get_modem_stat(&mut self) -> Result<u8, Error<E, CS::Error, RESET::Error>> {
+        Ok(self.read_register(Register::RegModemStat.addr()).await? as u8)
     }
 
     /// Sets the over current protection on the radio(mA).
-    pub fn set_ocp(&mut self, ma: u8) -> Result<(), Error<E, CS::Error, RESET::Error>> {
+    pub async fn set_ocp(&mut self, ma: u8) -> Result<(), Error<E, CS::Error, RESET::Error>> {
         let mut ocp_trim: u8 = 27;
 
         if ma <= 120 {
@@ -282,31 +264,40 @@ where
             ocp_trim = (ma + 30) / 10;
         }
         self.write_register(Register::RegOcp.addr(), 0x20 | (0x1F & ocp_trim))
+            .await
     }
 
     /// Sets the state of the radio. Default mode after initiation is `Standby`.
-    pub fn set_mode(&mut self, mode: RadioMode) -> Result<(), Error<E, CS::Error, RESET::Error>> {
+    pub async fn set_mode(
+        &mut self,
+        mode: RadioMode,
+    ) -> Result<(), Error<E, CS::Error, RESET::Error>> {
         if self.explicit_header {
-            self.set_explicit_header_mode()?;
+            self.set_explicit_header_mode().await?;
         } else {
-            self.set_implicit_header_mode()?;
+            self.set_implicit_header_mode().await?;
         }
         self.write_register(
             Register::RegOpMode.addr(),
             RadioMode::LongRangeMode.addr() | mode.addr(),
-        )?;
+        )
+        .await?;
 
         self.mode = mode;
         Ok(())
     }
 
-    pub fn reset_payload_length(&mut self) -> Result<(), Error<E, CS::Error, RESET::Error>> {
+    pub async fn reset_payload_length(&mut self) -> Result<(), Error<E, CS::Error, RESET::Error>> {
         self.write_register(Register::RegPayloadLength.addr(), 0xFF)
+            .await
     }
 
     /// Sets the frequency of the radio. Values are in megahertz.
     /// I.E. 915 MHz must be used for North America. Check regulation for your area.
-    pub fn set_frequency(&mut self, freq: u32) -> Result<(), Error<E, CS::Error, RESET::Error>> {
+    pub async fn set_frequency(
+        &mut self,
+        freq: u32,
+    ) -> Result<(), Error<E, CS::Error, RESET::Error>> {
         const FREQ_STEP: f64 = 61.03515625;
         // calculate register values
         let frf = (freq as f64 / FREQ_STEP) as u32;
@@ -314,23 +305,28 @@ where
         self.write_register(
             Register::RegFrfMsb.addr(),
             ((frf & 0x00FF_0000) >> 16) as u8,
-        )?;
-        self.write_register(Register::RegFrfMid.addr(), ((frf & 0x0000_FF00) >> 8) as u8)?;
+        )
+        .await?;
+        self.write_register(Register::RegFrfMid.addr(), ((frf & 0x0000_FF00) >> 8) as u8)
+            .await?;
         self.write_register(Register::RegFrfLsb.addr(), (frf & 0x0000_00FF) as u8)
+            .await
     }
 
     /// Sets the radio to use an explicit header. Default state is `ON`.
-    fn set_explicit_header_mode(&mut self) -> Result<(), Error<E, CS::Error, RESET::Error>> {
-        let reg_modem_config_1 = self.read_register(Register::RegModemConfig1.addr())?;
-        self.write_register(Register::RegModemConfig1.addr(), reg_modem_config_1 & 0xfe)?;
+    async fn set_explicit_header_mode(&mut self) -> Result<(), Error<E, CS::Error, RESET::Error>> {
+        let reg_modem_config_1 = self.read_register(Register::RegModemConfig1.addr()).await?;
+        self.write_register(Register::RegModemConfig1.addr(), reg_modem_config_1 & 0xfe)
+            .await?;
         self.explicit_header = true;
         Ok(())
     }
 
     /// Sets the radio to use an implicit header. Default state is `OFF`.
-    fn set_implicit_header_mode(&mut self) -> Result<(), Error<E, CS::Error, RESET::Error>> {
-        let reg_modem_config_1 = self.read_register(Register::RegModemConfig1.addr())?;
-        self.write_register(Register::RegModemConfig1.addr(), reg_modem_config_1 & 0x01)?;
+    async fn set_implicit_header_mode(&mut self) -> Result<(), Error<E, CS::Error, RESET::Error>> {
+        let reg_modem_config_1 = self.read_register(Register::RegModemConfig1.addr()).await?;
+        self.write_register(Register::RegModemConfig1.addr(), reg_modem_config_1 & 0x01)
+            .await?;
         self.explicit_header = false;
         Ok(())
     }
@@ -338,7 +334,7 @@ where
     /// Sets the spreading factor of the radio. Supported values are between 6 and 12.
     /// If a spreading factor of 6 is set, implicit header mode must be used to transmit
     /// and receive packets. Default value is `7`.
-    pub fn set_spreading_factor(
+    pub async fn set_spreading_factor(
         &mut self,
         mut sf: u8,
     ) -> Result<(), Error<E, CS::Error, RESET::Error>> {
@@ -349,36 +345,45 @@ where
         }
 
         if sf == 6 {
-            self.write_register(Register::RegDetectionOptimize.addr(), 0xc5)?;
-            self.write_register(Register::RegDetectionThreshold.addr(), 0x0c)?;
+            self.write_register(Register::RegDetectionOptimize.addr(), 0xc5)
+                .await?;
+            self.write_register(Register::RegDetectionThreshold.addr(), 0x0c)
+                .await?;
         } else {
-            self.write_register(Register::RegDetectionOptimize.addr(), 0xc3)?;
-            self.write_register(Register::RegDetectionThreshold.addr(), 0x0a)?;
+            self.write_register(Register::RegDetectionOptimize.addr(), 0xc3)
+                .await?;
+            self.write_register(Register::RegDetectionThreshold.addr(), 0x0a)
+                .await?;
         }
-        let modem_config_2 = self.read_register(Register::RegModemConfig2.addr())?;
+        let modem_config_2 = self.read_register(Register::RegModemConfig2.addr()).await?;
         self.write_register(
             Register::RegModemConfig2.addr(),
             (modem_config_2 & 0x0f) | ((sf << 4) & 0xf0),
-        )?;
-        self.set_ldo_flag()?;
+        )
+        .await?;
+        self.set_ldo_flag().await?;
 
-        self.write_register(Register::RegSymbTimeoutLsb.addr(), 0x05)?;
+        self.write_register(Register::RegSymbTimeoutLsb.addr(), 0x05)
+            .await?;
 
         Ok(())
     }
 
-    pub fn set_tcxo(&mut self, external: bool) -> Result<(), Error<E, CS::Error, RESET::Error>> {
+    pub async fn set_tcxo(
+        &mut self,
+        external: bool,
+    ) -> Result<(), Error<E, CS::Error, RESET::Error>> {
         if external {
-            self.write_register(Register::RegTcxo.addr(), 0x10)
+            self.write_register(Register::RegTcxo.addr(), 0x10).await
         } else {
-            self.write_register(Register::RegTcxo.addr(), 0x00)
+            self.write_register(Register::RegTcxo.addr(), 0x00).await
         }
     }
 
     /// Sets the signal bandwidth of the radio. Supported values are: `7800 Hz`, `10400 Hz`,
     /// `15600 Hz`, `20800 Hz`, `31250 Hz`,`41700 Hz` ,`62500 Hz`,`125000 Hz` and `250000 Hz`
     /// Default value is `125000 Hz`
-    pub fn set_signal_bandwidth(
+    pub async fn set_signal_bandwidth(
         &mut self,
         sbw: i64,
     ) -> Result<(), Error<E, CS::Error, RESET::Error>> {
@@ -394,19 +399,20 @@ where
             250_000 => 8,
             _ => 9,
         };
-        let modem_config_1 = self.read_register(Register::RegModemConfig1.addr())?;
+        let modem_config_1 = self.read_register(Register::RegModemConfig1.addr()).await?;
         self.write_register(
             Register::RegModemConfig1.addr(),
             (modem_config_1 & 0x0f) | ((bw << 4) as u8),
-        )?;
-        self.set_ldo_flag()?;
+        )
+        .await?;
+        self.set_ldo_flag().await?;
         Ok(())
     }
 
     /// Sets the coding rate of the radio with the numerator fixed at 4. Supported values
     /// are between `5` and `8`, these correspond to coding rates of `4/5` and `4/8`.
     /// Default value is `5`.
-    pub fn set_coding_rate_4(
+    pub async fn set_coding_rate_4(
         &mut self,
         mut denominator: u8,
     ) -> Result<(), Error<E, CS::Error, RESET::Error>> {
@@ -416,52 +422,64 @@ where
             denominator = 8;
         }
         let cr = denominator - 4;
-        let modem_config_1 = self.read_register(Register::RegModemConfig1.addr())?;
+        let modem_config_1 = self.read_register(Register::RegModemConfig1.addr()).await?;
         self.write_register(
             Register::RegModemConfig1.addr(),
             (modem_config_1 & 0xf1) | (cr << 1),
         )
+        .await
     }
 
     /// Sets the preamble length of the radio. Values are between 6 and 65535.
     /// Default value is `8`.
-    pub fn set_preamble_length(
+    pub async fn set_preamble_length(
         &mut self,
         length: i64,
     ) -> Result<(), Error<E, CS::Error, RESET::Error>> {
-        self.write_register(Register::RegPreambleMsb.addr(), (length >> 8) as u8)?;
+        self.write_register(Register::RegPreambleMsb.addr(), (length >> 8) as u8)
+            .await?;
         self.write_register(Register::RegPreambleLsb.addr(), length as u8)
+            .await
     }
 
     /// Enables are disables the radio's CRC check. Default value is `false`.
-    pub fn set_crc(&mut self, value: bool) -> Result<(), Error<E, CS::Error, RESET::Error>> {
-        let modem_config_2 = self.read_register(Register::RegModemConfig2.addr())?;
+    pub async fn set_crc(&mut self, value: bool) -> Result<(), Error<E, CS::Error, RESET::Error>> {
+        let modem_config_2 = self.read_register(Register::RegModemConfig2.addr()).await?;
         if value {
             self.write_register(Register::RegModemConfig2.addr(), modem_config_2 | 0x04)
+                .await
         } else {
             self.write_register(Register::RegModemConfig2.addr(), modem_config_2 & 0xfb)
+                .await
         }
     }
 
     /// Inverts the radio's IQ signals. Default value is `false`.
-    pub fn set_invert_iq(&mut self, value: bool) -> Result<(), Error<E, CS::Error, RESET::Error>> {
+    pub async fn set_invert_iq(
+        &mut self,
+        value: bool,
+    ) -> Result<(), Error<E, CS::Error, RESET::Error>> {
         if value {
-            self.write_register(Register::RegInvertiq.addr(), 0x66)?;
+            self.write_register(Register::RegInvertiq.addr(), 0x66)
+                .await?;
             self.write_register(Register::RegInvertiq2.addr(), 0x19)
+                .await
         } else {
-            self.write_register(Register::RegInvertiq.addr(), 0x27)?;
+            self.write_register(Register::RegInvertiq.addr(), 0x27)
+                .await?;
             self.write_register(Register::RegInvertiq2.addr(), 0x1d)
+                .await
         }
     }
 
     /// Returns the spreading factor of the radio.
-    pub fn get_spreading_factor(&mut self) -> Result<u8, Error<E, CS::Error, RESET::Error>> {
-        Ok(self.read_register(Register::RegModemConfig2.addr())? >> 4)
+    pub async fn get_spreading_factor(&mut self) -> Result<u8, Error<E, CS::Error, RESET::Error>> {
+        Ok(self.read_register(Register::RegModemConfig2.addr()).await? >> 4)
     }
 
     /// Returns the signal bandwidth of the radio.
-    pub fn get_signal_bandwidth(&mut self) -> Result<i64, Error<E, CS::Error, RESET::Error>> {
-        let bw = self.read_register(Register::RegModemConfig1.addr())? >> 4;
+    pub async fn get_signal_bandwidth(&mut self) -> Result<i64, Error<E, CS::Error, RESET::Error>> {
+        let bw = self.read_register(Register::RegModemConfig1.addr()).await? >> 4;
         let bw = match bw {
             0 => 7_800,
             1 => 10_400,
@@ -479,69 +497,76 @@ where
     }
 
     /// Returns the RSSI of the last received packet.
-    pub fn get_packet_rssi(&mut self) -> Result<i32, Error<E, CS::Error, RESET::Error>> {
-        Ok(i32::from(self.read_register(Register::RegPktRssiValue.addr())?) - 157)
+    pub async fn get_packet_rssi(&mut self) -> Result<i32, Error<E, CS::Error, RESET::Error>> {
+        Ok(i32::from(self.read_register(Register::RegPktRssiValue.addr()).await?) - 157)
     }
 
     /// Returns the signal to noise radio of the the last received packet.
-    pub fn get_packet_snr(&mut self) -> Result<f64, Error<E, CS::Error, RESET::Error>> {
+    pub async fn get_packet_snr(&mut self) -> Result<f64, Error<E, CS::Error, RESET::Error>> {
         Ok(f64::from(
-            self.read_register(Register::RegPktSnrValue.addr())?,
+            self.read_register(Register::RegPktSnrValue.addr()).await?,
         ))
     }
 
     /// Returns the frequency error of the last received packet in Hz.
-    pub fn get_packet_frequency_error(&mut self) -> Result<i64, Error<E, CS::Error, RESET::Error>> {
+    pub async fn get_packet_frequency_error(
+        &mut self,
+    ) -> Result<i64, Error<E, CS::Error, RESET::Error>> {
         let mut freq_error: i32;
-        freq_error = i32::from(self.read_register(Register::RegFreqErrorMsb.addr())? & 0x7);
+        freq_error = i32::from(self.read_register(Register::RegFreqErrorMsb.addr()).await? & 0x7);
         freq_error <<= 8i64;
-        freq_error += i32::from(self.read_register(Register::RegFreqErrorMid.addr())?);
+        freq_error += i32::from(self.read_register(Register::RegFreqErrorMid.addr()).await?);
         freq_error <<= 8i64;
-        freq_error += i32::from(self.read_register(Register::RegFreqErrorLsb.addr())?);
+        freq_error += i32::from(self.read_register(Register::RegFreqErrorLsb.addr()).await?);
 
         let f_xtal = 32_000_000; // FXOSC: crystal oscillator (XTAL) frequency (2.5. Chip Specification, p. 14)
         let f_error = ((f64::from(freq_error) * (1i64 << 24) as f64) / f64::from(f_xtal))
-            * (self.get_signal_bandwidth()? as f64 / 500_000.0f64); // p. 37
+            * (self.get_signal_bandwidth().await? as f64 / 500_000.0f64); // p. 37
         Ok(f_error as i64)
     }
 
-    fn set_ldo_flag(&mut self) -> Result<(), Error<E, CS::Error, RESET::Error>> {
-        let sw = self.get_signal_bandwidth()?;
+    async fn set_ldo_flag(&mut self) -> Result<(), Error<E, CS::Error, RESET::Error>> {
+        let sw = self.get_signal_bandwidth().await?;
         // Section 4.1.1.5
-        let symbol_duration = 1000 / (sw / ((1_i64) << self.get_spreading_factor()?));
+        let symbol_duration = 1000 / (sw / ((1_i64) << self.get_spreading_factor().await?));
 
         // Section 4.1.1.6
         let ldo_on = symbol_duration > 16;
 
-        let mut config_3 = self.read_register(Register::RegModemConfig3.addr())?;
+        let mut config_3 = self.read_register(Register::RegModemConfig3.addr()).await?;
         config_3.set_bit(3, ldo_on);
         //config_3.set_bit(2, true);
         self.write_register(Register::RegModemConfig3.addr(), config_3)
+            .await
     }
 
-    fn read_register(&mut self, reg: u8) -> Result<u8, Error<E, CS::Error, RESET::Error>> {
+    async fn read_register(&mut self, reg: u8) -> Result<u8, Error<E, CS::Error, RESET::Error>> {
+        let mut buffer = [reg & 0x7f, 0];
         self.cs.set_low().map_err(CS)?;
 
-        let mut buffer = [reg & 0x7f, 0];
-        let transfer = self.spi.transfer(&mut buffer).map_err(SPI)?;
+        let _ = self
+            .spi
+            .read_write(&mut buffer, &[reg & 0x7f, 0])
+            .await
+            .map_err(SPI)?;
+
         self.cs.set_high().map_err(CS)?;
-        Ok(transfer[1])
+        Ok(buffer[1])
     }
 
-    fn write_register(
+    async fn write_register(
         &mut self,
         reg: u8,
         byte: u8,
     ) -> Result<(), Error<E, CS::Error, RESET::Error>> {
         self.cs.set_low().map_err(CS)?;
-
         let buffer = [reg | 0x80, byte];
-        self.spi.write(&buffer).map_err(SPI)?;
+        self.spi.write(&buffer).await.map_err(SPI)?;
         self.cs.set_high().map_err(CS)?;
         Ok(())
     }
 
-    pub fn put_in_fsk_mode(&mut self) -> Result<(), Error<E, CS::Error, RESET::Error>> {
+    pub async fn put_in_fsk_mode(&mut self) -> Result<(), Error<E, CS::Error, RESET::Error>> {
         // Put in FSK mode
         let mut op_mode = 0;
         op_mode
@@ -551,9 +576,10 @@ where
             .set_bits(0..2, 0b011); // Mode
 
         self.write_register(Register::RegOpMode as u8, op_mode)
+            .await
     }
 
-    pub fn set_fsk_pa_ramp(
+    pub async fn set_fsk_pa_ramp(
         &mut self,
         modulation_shaping: FskDataModulationShaping,
         ramp: FskRampUpRamDown,
@@ -564,14 +590,15 @@ where
             .set_bits(0..3, ramp as u8);
 
         self.write_register(Register::RegPaRamp as u8, pa_ramp)
+            .await
     }
 
-    pub fn set_lora_pa_ramp(&mut self) -> Result<(), Error<E, CS::Error, RESET::Error>> {
-        self.write_register(Register::RegPaRamp as u8, 0b1000)
+    pub async fn set_lora_pa_ramp(&mut self) -> Result<(), Error<E, CS::Error, RESET::Error>> {
+        self.write_register(Register::RegPaRamp as u8, 0b1000).await
     }
 
-    pub fn set_lora_sync_word(&mut self) -> Result<(), Error<E, CS::Error, RESET::Error>> {
-        self.write_register(Register::RegSyncWord as u8, 0x34)
+    pub async fn set_lora_sync_word(&mut self) -> Result<(), Error<E, CS::Error, RESET::Error>> {
+        self.write_register(Register::RegSyncWord as u8, 0x34).await
     }
 }
 /// Modes of the radio and their corresponding register values.
diff --git a/embassy-stm32/src/spi/v2.rs b/embassy-stm32/src/spi/v2.rs
index 83ff70009..aa04fcca4 100644
--- a/embassy-stm32/src/spi/v2.rs
+++ b/embassy-stm32/src/spi/v2.rs
@@ -262,6 +262,11 @@ impl<'d, T: Instance, Tx, Rx> Spi<'d, T, Tx, Rx> {
             T::regs().cr2().modify(|reg| {
                 reg.set_rxdmaen(true);
             });
+
+            // Flush the read buffer to avoid errornous data from being read
+            while T::regs().sr().read().rxne() {
+                let _ = T::regs().dr().read();
+            }
         }
         Self::set_word_size(WordSize::EightBit);
 
diff --git a/embassy-stm32/src/spi/v3.rs b/embassy-stm32/src/spi/v3.rs
index e8ef33176..dbd9d78c9 100644
--- a/embassy-stm32/src/spi/v3.rs
+++ b/embassy-stm32/src/spi/v3.rs
@@ -284,6 +284,11 @@ impl<'d, T: Instance, Tx, Rx> Spi<'d, T, Tx, Rx> {
             T::regs().cfg1().modify(|reg| {
                 reg.set_rxdmaen(true);
             });
+
+            // Flush the read buffer to avoid errornous data from being read
+            while T::regs().sr().read().rxp() {
+                let _ = T::regs().rxdr().read();
+            }
         }
 
         let rx_request = self.rxdma.request();
diff --git a/examples/stm32l0/Cargo.toml b/examples/stm32l0/Cargo.toml
index 6fe744f03..53ba6ba39 100644
--- a/examples/stm32l0/Cargo.toml
+++ b/examples/stm32l0/Cargo.toml
@@ -10,16 +10,17 @@ embassy = { version = "0.1.0", path = "../../embassy", features = ["defmt"] }
 embassy-traits = { version = "0.1.0", path = "../../embassy-traits", features = ["defmt"] }
 embassy-stm32 = { version = "0.1.0", path = "../../embassy-stm32", features = ["defmt", "stm32l072cz", "time-driver-tim3"]  }
 
-embassy-lora = { version = "0.1.0", path = "../../embassy-lora", features = ["sx127x", "time"] }
-lorawan-device = { git = "https://github.com/ivajloip/rust-lorawan.git", rev = "4bff2e0021103adfbccedcbf49dbcd0474adc4b2", default-features = false, features = ["async"] }
-lorawan-encoding = { git = "https://github.com/ivajloip/rust-lorawan.git", rev = "4bff2e0021103adfbccedcbf49dbcd0474adc4b2", default-features = false, features = ["default-crypto"] }
+embassy-lora = { version = "0.1.0", path = "../../embassy-lora", features = ["sx127x", "time", "defmt"] }
+
+lorawan-device = { git = "https://github.com/ivajloip/rust-lorawan.git", rev = "53d2feb43e2f3ddcdc55f0587391b0d3f02d8d93", default-features = false, features = ["async"] }
+lorawan-encoding = { git = "https://github.com/ivajloip/rust-lorawan.git", rev = "53d2feb43e2f3ddcdc55f0587391b0d3f02d8d93", default-features = false, features = ["default-crypto"] }
 
 defmt = "0.3"
 defmt-rtt = "0.3"
 
 cortex-m = "0.7.3"
 cortex-m-rt = "0.7.0"
-embedded-hal = "0.2.6"
 panic-probe = { version = "0.3", features = ["print-defmt"] }
 futures = { version = "0.3.17", default-features = false, features = ["async-await"] }
 heapless = { version = "0.7.5", default-features = false }
+embedded-hal = "0.2.6"
diff --git a/examples/stm32l0/src/bin/lorawan.rs b/examples/stm32l0/src/bin/lorawan.rs
index 5ca69f9a7..cbae88356 100644
--- a/examples/stm32l0/src/bin/lorawan.rs
+++ b/examples/stm32l0/src/bin/lorawan.rs
@@ -12,7 +12,6 @@ mod example_common;
 use embassy_lora::{sx127x::*, LoraTimer};
 use embassy_stm32::{
     dbgmcu::Dbgmcu,
-    dma::NoDma,
     exti::ExtiInput,
     gpio::{Input, Level, Output, Pull, Speed},
     rcc,
@@ -45,8 +44,8 @@ async fn main(_spawner: embassy::executor::Spawner, mut p: Peripherals) {
         p.PB3,
         p.PA7,
         p.PA6,
-        NoDma,
-        NoDma,
+        p.DMA1_CH3,
+        p.DMA1_CH2,
         200_000.hz(),
         spi::Config::default(),
     );
@@ -58,15 +57,9 @@ async fn main(_spawner: embassy::executor::Spawner, mut p: Peripherals) {
     let ready = Input::new(p.PB4, Pull::Up);
     let ready_pin = ExtiInput::new(ready, p.EXTI4);
 
-    let radio = Sx127xRadio::new(
-        spi,
-        cs,
-        reset,
-        ready_pin,
-        DummySwitch,
-        &mut embassy::time::Delay,
-    )
-    .unwrap();
+    let radio = Sx127xRadio::new(spi, cs, reset, ready_pin, DummySwitch)
+        .await
+        .unwrap();
 
     let region = region::EU868::default().into();
     let mut radio_buffer = [0; 256];
diff --git a/examples/stm32wl55/Cargo.toml b/examples/stm32wl55/Cargo.toml
index 7a7621230..c7344152d 100644
--- a/examples/stm32wl55/Cargo.toml
+++ b/examples/stm32wl55/Cargo.toml
@@ -11,8 +11,8 @@ embassy-traits = { version = "0.1.0", path = "../../embassy-traits", features =
 embassy-stm32 = { version = "0.1.0", path = "../../embassy-stm32", features = ["defmt", "stm32wl55jc-cm4", "time-driver-tim2", "memory-x", "subghz", "unstable-pac"]  }
 embassy-lora = { version = "0.1.0", path = "../../embassy-lora", features = ["stm32wl", "time"] }
 
-lorawan-device = { git = "https://github.com/ivajloip/rust-lorawan.git", rev = "4bff2e0021103adfbccedcbf49dbcd0474adc4b2", default-features = false, features = ["async"] }
-lorawan-encoding = { git = "https://github.com/ivajloip/rust-lorawan.git", rev = "4bff2e0021103adfbccedcbf49dbcd0474adc4b2", default-features = false, features = ["default-crypto"] }
+lorawan-device = { git = "https://github.com/ivajloip/rust-lorawan.git", rev = "53d2feb43e2f3ddcdc55f0587391b0d3f02d8d93", default-features = false, features = ["async"] }
+lorawan-encoding = { git = "https://github.com/ivajloip/rust-lorawan.git", rev = "53d2feb43e2f3ddcdc55f0587391b0d3f02d8d93", default-features = false, features = ["default-crypto"] }
 
 defmt = "0.3"
 defmt-rtt = "0.3"