diff --git a/bsp_linux_board/RPiSdCardManager.cpp b/bsp_linux_board/RPiSdCardManager.cpp
index 7913f33a..73111a83 100644
--- a/bsp_linux_board/RPiSdCardManager.cpp
+++ b/bsp_linux_board/RPiSdCardManager.cpp
@@ -1,14 +1,20 @@
 #include "RPiSdCardManager.h"
 
-RPiSdCardManager::RPiSdCardManager() {}
+RPiSdCardManager::RPiSdCardManager(const std::string& prefix):prefix(prefix) {
 
-RPiSdCardManager::RPiSdCardManager(std::string prefix) {}
+}
 
-const std::string& RPiSdCardManager::getCurrentMountPrefix() const {}
+const std::string& RPiSdCardManager::getCurrentMountPrefix() const {
+	return prefix;
+}
 
-bool RPiSdCardManager::isSdCardMounted(sd::SdCard sdCard) {}
+bool RPiSdCardManager::isSdCardMounted(sd::SdCard sdCard) {
+	return true;
+}
 
-sd::SdCard RPiSdCardManager::getPreferredSdCard() const {}
+sd::SdCard RPiSdCardManager::getPreferredSdCard() const {
+
+}
 
 void RPiSdCardManager::setActiveSdCard(sd::SdCard sdCard) {}
 
diff --git a/bsp_linux_board/RPiSdCardManager.h b/bsp_linux_board/RPiSdCardManager.h
index 68e20c78..144cfe0e 100644
--- a/bsp_linux_board/RPiSdCardManager.h
+++ b/bsp_linux_board/RPiSdCardManager.h
@@ -4,12 +4,14 @@
 
 class RPiSdCardManager: public SdCardMountedIF {
 public:
-  RPiSdCardManager(std::string prefix);
+  RPiSdCardManager(const std::string& prefix);
   const std::string& getCurrentMountPrefix() const override;
   bool isSdCardMounted(sd::SdCard sdCard) override;
   sd::SdCard getPreferredSdCard() const override;
   void setActiveSdCard(sd::SdCard sdCard) override;
   sd::SdCard getActiveSdCard() const override;
+private:
+  std::string prefix;
 };
 
 
diff --git a/fsfw b/fsfw
index cf8fe7ea..141dcb1f 160000
--- a/fsfw
+++ b/fsfw
@@ -1 +1 @@
-Subproject commit cf8fe7ea728bea077b9936bcf0db96845bc6419e
+Subproject commit 141dcb1f149b824b5bd6e5d3339ecb712835751e
diff --git a/mission/devices/ScexDeviceHandler.cpp b/mission/devices/ScexDeviceHandler.cpp
index 9a5ebf11..5f3f9aa0 100644
--- a/mission/devices/ScexDeviceHandler.cpp
+++ b/mission/devices/ScexDeviceHandler.cpp
@@ -312,17 +312,21 @@ ReturnValue_t ScexDeviceHandler::initializeLocalDataPool(localpool::DataPool& lo
 std::string ScexDeviceHandler::date_time_string() {
   using namespace std;
   string date_time;
+  Clock::TimeOfDay_t tod;
+  Clock::getDateAndTime(&tod);
   time_t now = time(0);
   tm* ltm = localtime(&now);
   ostringstream oss(std::ostringstream::ate);
 
+  //TODO mit tod ersetzen
   if (ltm->tm_hour < 10) {
-    oss << 1900 + ltm->tm_year << 1 + ltm->tm_mon << ltm->tm_mday << "_0" << ltm->tm_hour;
+    oss << tod.year << tod.month << ltm->tm_mday << "_0" << ltm->tm_hour;
   } else {
     oss << 1900 + ltm->tm_year << 1 + ltm->tm_mon << ltm->tm_mday << "_" << ltm->tm_hour;
   }
   if (ltm->tm_min < 10) {
     oss << 0 << ltm->tm_min;
+
   } else {
     oss << ltm->tm_min;
   }
diff --git a/tmtc b/tmtc
index e1d84c5b..b4d4a511 160000
--- a/tmtc
+++ b/tmtc
@@ -1 +1 @@
-Subproject commit e1d84c5b99e99ea9a9687dcd298d815dc4d8d2b6
+Subproject commit b4d4a51164af69a22eedd645775061dbb51702b1