found the bug

bsp_linux_board/ObjectFactory.cpp

@@ -23,7 +23,6 @@
 #include "mission/devices/GyroADIS1650XHandler.h"
 #include "mission/tmtc/TmFunnel.h"
 #include "objects/systemObjectList.h"
-#include "tmtc/apid.h"
 #include "tmtc/pusIds.h"
 
 /* UDP server includes */

bsp_linux_board/RPiSdCardManager.cpp

@@ -4,7 +4,7 @@ RPiSdCardManager::RPiSdCardManager(std::string prefix) : prefix(std::move(prefix
 
 const std::string& RPiSdCardManager::getCurrentMountPrefix() const { return prefix; }
 
-bool RPiSdCardManager::isSdCardMounted(sd::SdCard sdCard) { return true; }
+bool RPiSdCardManager::isSdCardUsable(sd::SdCard sdCard) { return true; }
 
 std::optional<sd::SdCard> RPiSdCardManager::getPreferredSdCard() const { return std::nullopt; }
 

bsp_linux_board/RPiSdCardManager.h

@@ -6,7 +6,7 @@ class RPiSdCardManager : public SdCardMountedIF {
  public:
   RPiSdCardManager(std::string prefix);
   const std::string& getCurrentMountPrefix() const override;
-  bool isSdCardMounted(sd::SdCard sdCard) override;
+  bool isSdCardUsable(sd::SdCard sdCard) override;
   std::optional<sd::SdCard> getPreferredSdCard() const override;
   void setActiveSdCard(sd::SdCard sdCard) override;
   std::optional<sd::SdCard> getActiveSdCard() const override;

fsfw

@@ -1 +1 @@
-Subproject commit d1630cdc4c3fc801934f1e394efa80e898f8031b
+Subproject commit 1c53b60442f5b858b00938169ef1daba41ba272d

linux/devices/ScexUartReader.cpp

@@ -35,7 +35,7 @@ ReturnValue_t ScexUartReader::performOperation(uint8_t operationCode) {
   while (true) {
     semaphore->acquire();
     int bytesRead = 0;
-    debugMode = true;
+    // debugMode = true;
     while (true) {
       bytesRead = read(serialPort, reinterpret_cast<void *>(recBuf.data()),
                        static_cast<unsigned int>(recBuf.size()));
@@ -50,24 +50,11 @@ ReturnValue_t ScexUartReader::performOperation(uint8_t operationCode) {
             break;
           }
         }
-        size_t bytesRead = 0;
         ReturnValue_t result = returnvalue::OK;
         while (result != DleParser::NO_PACKET_FOUND) {
-          result = dleParser.parseRingBuf(bytesRead);
-          if (result == returnvalue::OK) {
-            sif::info << "FOund dle packet, read " << bytesRead << " bytes" << std::endl;
-            // Packet found, advance read pointer.
-            auto& decodedPacket = dleParser.getContext().decodedPacket;
-            handleFoundDlePacket(decodedPacket.first, decodedPacket.second);
-            dleParser.confirmBytesRead(bytesRead);
-          } else if (result != DleParser::NO_PACKET_FOUND) {
-            sif::warning << "ScexUartReader::performOperation: Possible packet loss" << std::endl;
-            // Markers found at wrong place
-            // which might be a hint for a possibly lost packet.
-            dleParser.defaultErrorHandler();
-            dleParser.confirmBytesRead(bytesRead);
-          }
+          result = tryDleParsing();
         }
+
         TaskFactory::delayTask(400);
       } else if (bytesRead < 0) {
         sif::warning << "ScexUartReader::performOperation: read call failed with error [" << errno
@@ -77,15 +64,16 @@ ReturnValue_t ScexUartReader::performOperation(uint8_t operationCode) {
         sif::error << "ScexUartReader::performOperation: Receive buffer too small for " << bytesRead
                    << " bytes" << std::endl;
       } else if (bytesRead > 0) {
-        ReturnValue_t result = dleParser.passData(recBuf.data(), bytesRead);
         if (debugMode) {
           sif::info << "Received " << bytesRead
                     << " bytes from the Solar Cell Experiment:" << std::endl;
         }
+        ReturnValue_t result = dleParser.passData(recBuf.data(), bytesRead);
         if (result != OK) {
           sif::warning << "ScexUartReader::performOperation: Passing data to DLE parser failed"
                        << std::endl;
         }
+        result = tryDleParsing();
       }
     };
   }
@@ -138,6 +126,7 @@ ReturnValue_t ScexUartReader::initializeInterface(CookieIF *cookie) {
 
 ReturnValue_t ScexUartReader::sendMessage(CookieIF *cookie, const uint8_t *sendData,
                                           size_t sendLen) {
+  ReturnValue_t result;
   if (sendData == nullptr or sendLen == 0) {
     return FAILED;
   }
@@ -146,13 +135,16 @@ ReturnValue_t ScexUartReader::sendMessage(CookieIF *cookie, const uint8_t *sendD
     lock->unlockMutex();
     return FAILED;
   }
-  tcflush(serialPort, TCIOFLUSH);
+  tcflush(serialPort, TCIFLUSH);
   state = States::RUNNING;
   lock->unlockMutex();
 
+  result = semaphore->release();
+  if (result != OK) {
+    std::cout << "ScexUartReader::sendMessage: Releasing semaphore failed" << std::endl;
+  }
   size_t encodedLen = 0;
-  ReturnValue_t result =
-      dleEncoder.encode(sendData, sendLen, cmdbuf.data(), cmdbuf.size(), &encodedLen, true);
+  result = dleEncoder.encode(sendData, sendLen, cmdbuf.data(), cmdbuf.size(), &encodedLen, true);
   if (result != OK) {
     sif::warning << "ScexUartReader::sendMessage: Encoding failed" << std::endl;
     return FAILED;
@@ -163,10 +155,7 @@ ReturnValue_t ScexUartReader::sendMessage(CookieIF *cookie, const uint8_t *sendD
                  << std::endl;
     return FAILED;
   }
-  result = semaphore->release();
-  if (result != OK) {
-    std::cout << "ScexUartReader::sendMessage: Releasing semaphore failed" << std::endl;
-  }
+
   return OK;
 }
 
@@ -199,6 +188,30 @@ void ScexUartReader::handleFoundDlePacket(uint8_t *packet, size_t len) {
   }
 }
 
+ReturnValue_t ScexUartReader::tryDleParsing() {
+  size_t bytesRead = 0;
+  ReturnValue_t result = dleParser.parseRingBuf(bytesRead);
+  if (result == returnvalue::OK) {
+    // Packet found, advance read pointer.
+    auto &decodedPacket = dleParser.getContext().decodedPacket;
+    handleFoundDlePacket(decodedPacket.first, decodedPacket.second);
+    dleParser.confirmBytesRead(bytesRead);
+  } else if (result != DleParser::NO_PACKET_FOUND) {
+    sif::warning << "ScexUartReader::performOperation: Possible packet loss" << std::endl;
+    // Markers found at wrong place
+    // which might be a hint for a possibly lost packet.
+    dleParser.defaultErrorHandler();
+    dleParser.confirmBytesRead(bytesRead);
+  }
+  return result;
+}
+
+void ScexUartReader::reset() {
+  lock->lockMutex();
+  state = States::FINISH;
+  lock->unlockMutex();
+}
+
 ReturnValue_t ScexUartReader::readReceivedMessage(CookieIF *cookie, uint8_t **buffer,
                                                   size_t *size) {
   MutexGuard mg(lock);

linux/devices/ScexUartReader.h

@@ -22,6 +22,7 @@ class ScexUartReader : public SystemObject,  // strg+shift+n
   enum class States { NOT_READY, IDLE, RUNNING, FINISH };
   ScexUartReader(object_id_t objectId);
 
+  void reset();
   ReturnValue_t finish();
   void setDebugMode(bool enable);
 
@@ -47,6 +48,7 @@ class ScexUartReader : public SystemObject,  // strg+shift+n
 
   static void foundDlePacketHandler(const DleParser::Context &ctx);
   void handleFoundDlePacket(uint8_t *packet, size_t len);
+  ReturnValue_t tryDleParsing();
 
   ReturnValue_t performOperation(uint8_t operationCode = 0) override;
 

mission/devices/ScexDeviceHandler.cpp

@@ -5,10 +5,10 @@
 
 #include <algorithm>
 #include <ctime>
-#include <iostream>
-#include <fstream>
-#include <random>
 #include <filesystem>
+#include <fstream>
+#include <iostream>
+#include <random>
 
 #include "fsfw/globalfunctions/CRC.h"
 #include "mission/devices/devicedefinitions/ScexDefinitions.h"
@@ -24,7 +24,10 @@ ScexDeviceHandler::~ScexDeviceHandler() {}
 
 void ScexDeviceHandler::doStartUp() { setMode(MODE_ON); }
 
-void ScexDeviceHandler::doShutDown() { setMode(_MODE_POWER_DOWN); }
+void ScexDeviceHandler::doShutDown() {
+  reader.reset();
+  setMode(_MODE_POWER_DOWN);
+}
 
 ReturnValue_t ScexDeviceHandler::buildNormalDeviceCommand(DeviceCommandId_t* id) { return OK; }
 
@@ -348,11 +351,9 @@ void ScexDeviceHandler::modeChanged() {}
 void ScexDeviceHandler::setPowerSwitcher(PowerSwitchIF& powerSwitcher, power::Switch_t switchId) {
   DeviceHandlerBase::setPowerSwitcher(&powerSwitcher);
   this->switchId = switchId;
-
 }
 
 ReturnValue_t ScexDeviceHandler::initializeAfterTaskCreation() {
-
   auto mntPrefix = sdcMan.getCurrentMountPrefix();
   std::filesystem::path fullFilePath = mntPrefix;
   fullFilePath /= "scex";

mission/devices/devicedefinitions/ScexDefinitions.h

@@ -1,14 +1,15 @@
 #ifndef MISSION_DEVICES_DEVICEDEFINITIONS_SCEXDEFINITIONS_H_
 #define MISSION_DEVICES_DEVICEDEFINITIONS_SCEXDEFINITIONS_H_
 
-#include "eive/objects.h"
-#include "eive/eventSubsystemIds.h"
 #include <fsfw/devicehandlers/DeviceHandlerIF.h>
 #include <fsfw/events/Event.h>
 
 #include <cstdint>
 #include <vector>
 
+#include "eive/eventSubsystemIds.h"
+#include "eive/objects.h"
+
 // Definitions for the Solar Cell Experiment
 namespace scex {