Fix reinterpret_cast from uint8_t to *uint32_t

Author: rasmuskleist

examples/nucleo_g474re/sx128x_lora/main.cpp

@@ -11,6 +11,7 @@
 // ----------------------------------------------------------------------------
 
 #include <atomic>
+#include <cstring>
 
 #include <modm/board.hpp>
 #include <modm/debug/logger/logger.hpp>
@@ -119,11 +120,13 @@ class RxThread : public modm::sx128x, public modm::pt::Protothread
                     PT_CALL(radio.getPacketStatus(&packetStatus));
                     PT_CALL(radio.readBuffer(rxBufferStatus.rxStartBufferPointer, std::span{buffer, rxBufferStatus.rxPayloadLength}));
 
-                    /// TODO: read frequency error indicator (FEI) from register 0x0954 (MSB) 0x0955, 0x0956 (LSB).
-
-                    MODM_LOG_DEBUG << "Received Message" << modm::endl;
-                    MODM_LOG_DEBUG << "Counter: " << reinterpret_cast<uint32_t*>(buffer)[0] << modm::endl;
-                    MODM_LOG_DEBUG << modm::endl;
+                    if (rxBufferStatus.rxPayloadLength > 0)
+                    {
+                        uint32_t counter;
+                        std::memcpy((uint8_t *) &counter, buffer, sizeof(counter));
+                        MODM_LOG_DEBUG << "Received Message" << modm::endl;
+                        MODM_LOG_DEBUG << "Counter: " << counter << modm::endl;
+                    }
                 }
             }
 
@@ -152,7 +155,7 @@ class RxThread : public modm::sx128x, public modm::pt::Protothread
     modm::Sx128x< Transport, Reset, Busy > radio;
 
 private:
-    static constexpr uint8_t bufferSize = 256;
+    static constexpr size_t bufferSize = 256;
     uint8_t buffer[bufferSize];
 } rxThread;
 
@@ -228,7 +231,6 @@ class TxThread : public modm::sx128x, public modm::pt::Protothread
                 {
                     PT_CALL(radio.clearIrqStatus(Irq::RxTxTimeout));
                     irqStatus.reset(Irq::RxTxTimeout);
-
                     MODM_LOG_DEBUG << "Received a timeout" << modm::endl;
                 }
             }