diff --git a/bsp_q7s/CMakeLists.txt b/bsp_q7s/CMakeLists.txt
index d0ee0800..d4f69217 100644
--- a/bsp_q7s/CMakeLists.txt
+++ b/bsp_q7s/CMakeLists.txt
@@ -11,4 +11,5 @@ else()
     add_subdirectory(comIF)
     add_subdirectory(gpio)
     add_subdirectory(core)
+    add_subdirectory(memory)
 endif()
diff --git a/bsp_q7s/boardconfig/q7sConfig.h.in b/bsp_q7s/boardconfig/q7sConfig.h.in
index bf509f0d..9bed2a4a 100644
--- a/bsp_q7s/boardconfig/q7sConfig.h.in
+++ b/bsp_q7s/boardconfig/q7sConfig.h.in
@@ -1,6 +1,8 @@
 #ifndef BSP_Q7S_BOARDCONFIG_Q7S_CONFIG_H_
 #define BSP_Q7S_BOARDCONFIG_Q7S_CONFIG_H_
 
+#include <cstdint>
+
 #cmakedefine01 Q7S_SIMPLE_MODE
 #define Q7S_ADD_RTD_DEVICES             0
 
@@ -13,4 +15,10 @@
 
 #define Q7S_SIMPLE_ADD_FILE_SYSTEM_TEST 0
 
+namespace config {
+
+static const uint32_t SD_CARD_ACCESS_MUTEX_TIMEOUT = 50;
+
+}
+
 #endif /* BSP_Q7S_BOARDCONFIG_Q7S_CONFIG_H_ */
diff --git a/bsp_q7s/boardtest/CMakeLists.txt b/bsp_q7s/boardtest/CMakeLists.txt
index 9a5c0a0a..1cda38ca 100644
--- a/bsp_q7s/boardtest/CMakeLists.txt
+++ b/bsp_q7s/boardtest/CMakeLists.txt
@@ -1,5 +1,6 @@
 target_sources(${TARGET_NAME} PRIVATE
     FileSystemTest.cpp
+    Q7STestTask.cpp
 )
 
 
diff --git a/bsp_q7s/boardtest/FileSystemTest.cpp b/bsp_q7s/boardtest/FileSystemTest.cpp
index fa504b0c..1de5bb7a 100644
--- a/bsp_q7s/boardtest/FileSystemTest.cpp
+++ b/bsp_q7s/boardtest/FileSystemTest.cpp
@@ -1,4 +1,5 @@
 #include "FileSystemTest.h"
+#include "fsfw/timemanager/Stopwatch.h"
 
 #include <iostream>
 #include <cstdlib>
@@ -7,7 +8,13 @@ FileSystemTest::FileSystemTest() {
     using namespace std;
     SdCard sdCard = SdCard::SDC0;
     cout << "SD Card Test for SD card " << static_cast<int>(sdCard) << std::endl;
-    //std::system("echo Hello World");
+    //Stopwatch stopwatch;
+    std::system("q7hw sd info all > /tmp/sd_status.txt");
+    //stopwatch.stop(true);
+    std::system("q7hw sd set 0 on > /tmp/sd_set.txt");
+    //stopwatch.stop(true);
+    std::system("q7hw sd set 0 off > /tmp/sd_set.txt");
+    //stopwatch.stop(true);
 }
 
 FileSystemTest::~FileSystemTest() {
diff --git a/bsp_q7s/boardtest/Q7STestTask.cpp b/bsp_q7s/boardtest/Q7STestTask.cpp
new file mode 100644
index 00000000..0166bfb8
--- /dev/null
+++ b/bsp_q7s/boardtest/Q7STestTask.cpp
@@ -0,0 +1,42 @@
+#include "Q7STestTask.h"
+#include "fsfw/timemanager/Stopwatch.h"
+#include "fsfw/tasks/TaskFactory.h"
+#include <iostream>
+#include <fstream>
+#include <cstdio>
+
+Q7STestTask::Q7STestTask(object_id_t objectId): TestTask(objectId) {
+}
+
+ReturnValue_t Q7STestTask::performOneShotAction() {
+    sdCardTests();
+    return TestTask::performOneShotAction();
+}
+
+void Q7STestTask::sdCardTests() {
+    using namespace std;
+    Stopwatch stopwatch;
+    FILE* testFile = popen("q7hw sd info all > /tmp/sd_status.txt", "r");
+    TaskFactory::delayTask(3000);
+    //int result = system();
+    //std::fstream fs(testFile);
+    // Read contents from file
+    char* line = nullptr;
+    size_t len = 0;
+    ssize_t read = getline(&line, &len, testFile);
+    if(read != -1 and line != nullptr) {
+        cout << line << endl;
+    }
+//    c = fgetc(testFile);
+//    while (c != EOF)
+//    {
+//        printf ("%c", c);
+//        c = fgetc(testFile);
+//    }
+//    cout << "Info result " << result << endl;
+//    stopwatch.stop(true);
+//    system("q7hw sd set 0 on > /tmp/sd_set.txt");
+//    stopwatch.stop(true);
+//    system("q7hw sd set 0 off > /tmp/sd_set.txt");
+//    stopwatch.stop(true);
+}
diff --git a/bsp_q7s/boardtest/Q7STestTask.h b/bsp_q7s/boardtest/Q7STestTask.h
new file mode 100644
index 00000000..4b1aea7e
--- /dev/null
+++ b/bsp_q7s/boardtest/Q7STestTask.h
@@ -0,0 +1,16 @@
+#ifndef BSP_Q7S_BOARDTEST_Q7STESTTASK_H_
+#define BSP_Q7S_BOARDTEST_Q7STESTTASK_H_
+
+#include "test/testtasks/TestTask.h"
+
+class Q7STestTask: public TestTask {
+public:
+    Q7STestTask(object_id_t objectId);
+private:
+    ReturnValue_t performOneShotAction() override;
+
+    void sdCardTests();
+};
+
+
+#endif /* BSP_Q7S_BOARDTEST_Q7STESTTASK_H_ */
diff --git a/bsp_q7s/core/ObjectFactory.cpp b/bsp_q7s/core/ObjectFactory.cpp
index 99ec65c2..bb0edf82 100644
--- a/bsp_q7s/core/ObjectFactory.cpp
+++ b/bsp_q7s/core/ObjectFactory.cpp
@@ -1,3 +1,4 @@
+#include <bsp_q7s/boardtest/Q7STestTask.h>
 #include "ObjectFactory.h"
 #include "OBSWConfig.h"
 #include "tmtc/apid.h"
@@ -556,6 +557,11 @@ void ObjectFactory::produce(void* args){
     new UdpTmTcBridge(objects::UDP_BRIDGE, objects::CCSDS_PACKET_DISTRIBUTOR);
     new UdpTcPollingTask(objects::UDP_POLLING_TASK, objects::UDP_BRIDGE);
 
+    /* Test Task */
+#if OBSW_ADD_TEST_CODE == 1
+    new Q7STestTask(objects::TEST_TASK);
+#endif
+
 #if TE0720 == 1 && TEST_LIBGPIOD == 1
     /* Configure MIO0 as input */
     GpiodRegular gpioConfigMio0(std::string("gpiochip0"), 0,
@@ -630,4 +636,5 @@ void ObjectFactory::produce(void* args){
 #if Q7S_ADD_SPI_TEST == 1
     new SpiTestClass(objects::SPI_TEST, gpioComIF);
 #endif
+
 }
diff --git a/bsp_q7s/memory/CMakeLists.txt b/bsp_q7s/memory/CMakeLists.txt
index 2ccdc7e2..03b7f0b9 100644
--- a/bsp_q7s/memory/CMakeLists.txt
+++ b/bsp_q7s/memory/CMakeLists.txt
@@ -1,4 +1,5 @@
 target_sources(${TARGET_NAME} PRIVATE
     FileSystemManager.cpp
     SdCardAccess.cpp
+    SdCardAccessManager.cpp
 )
\ No newline at end of file
diff --git a/bsp_q7s/memory/SdCardAccess.cpp b/bsp_q7s/memory/SdCardAccess.cpp
index 3d5f12b9..05e8bd3c 100644
--- a/bsp_q7s/memory/SdCardAccess.cpp
+++ b/bsp_q7s/memory/SdCardAccess.cpp
@@ -1,4 +1,22 @@
 #include "SdCardAccess.h"
+#include "q7sConfig.h"
+#include "SdCardAccessManager.h"
 
-SdCardAccess::SdCardAccess() {
+#include "fsfw/ipc/MutexGuard.h"
+
+SdCardAccess::SdCardAccess(sd::SdCard sdCard) {
+    auto accessManager = SdCardAccessManager::instance();
+    MutexGuard(accessManager->mutex, MutexIF::TimeoutType::WAITING,
+            config::SD_CARD_ACCESS_MUTEX_TIMEOUT);
+    if(accessManager->getSdCardAccessors(sdCard) == 0) {
+        if(sdCard == sd::SdCard::SLOT_0) {
+            std::system("q7hw sd set 0 on");
+            accessManager->activeAccessesSdCard0++;
+
+        }
+        else {
+            std::system("q7hw sd set 1 on");
+            accessManager->activeAccessesSdCard1++;
+        }
+    }
 }
diff --git a/bsp_q7s/memory/SdCardAccess.h b/bsp_q7s/memory/SdCardAccess.h
index ba273d09..8128b122 100644
--- a/bsp_q7s/memory/SdCardAccess.h
+++ b/bsp_q7s/memory/SdCardAccess.h
@@ -1,9 +1,11 @@
 #ifndef BSP_Q7S_MEMORY_SDCARDACCESS_H_
 #define BSP_Q7S_MEMORY_SDCARDACCESS_H_
 
+#include "definitions.h"
+
 class SdCardAccess {
 public:
-    SdCardAccess();
+    SdCardAccess(sd::SdCard sdCard);
 private:
 };
 
diff --git a/bsp_q7s/memory/SdCardAccessManager.cpp b/bsp_q7s/memory/SdCardAccessManager.cpp
new file mode 100644
index 00000000..8c204aae
--- /dev/null
+++ b/bsp_q7s/memory/SdCardAccessManager.cpp
@@ -0,0 +1,33 @@
+#include "SdCardAccessManager.h"
+#include "fsfw/ipc/MutexFactory.h"
+
+SdCardAccessManager* SdCardAccessManager::factoryInstance = nullptr;
+
+SdCardAccessManager::~SdCardAccessManager() {
+    MutexFactory::instance()->deleteMutex(mutex);
+}
+
+void SdCardAccessManager::create() {
+    if(factoryInstance == nullptr) {
+        factoryInstance = new SdCardAccessManager();
+    }
+}
+
+SdCardAccessManager* SdCardAccessManager::instance() {
+    SdCardAccessManager::create();
+    return SdCardAccessManager::factoryInstance;
+}
+
+SdCardAccessManager::SdCardAccessManager() {
+    mutex = MutexFactory::instance()->createMutex();
+
+}
+
+uint8_t SdCardAccessManager::getSdCardAccessors(sd::SdCard sdCard) const {
+    if(sdCard == sd::SdCard::SLOT_0) {
+        return activeAccessesSdCard0;
+    }
+    else {
+        return activeAccessesSdCard1;
+    }
+}
diff --git a/bsp_q7s/memory/SdCardAccessManager.h b/bsp_q7s/memory/SdCardAccessManager.h
new file mode 100644
index 00000000..2c6337b7
--- /dev/null
+++ b/bsp_q7s/memory/SdCardAccessManager.h
@@ -0,0 +1,48 @@
+#ifndef BSP_Q7S_MEMORY_SDCARDACCESSMANAGER_H_
+#define BSP_Q7S_MEMORY_SDCARDACCESSMANAGER_H_
+
+#include "definitions.h"
+
+#include <cstdint>
+
+class MutexIF;
+
+/**
+ * @brief   This class manages selecting and switching the active SD card, therefore also
+ *          managing the redundancy of the SD cards
+ * @details
+ * This class will track the currently active users for a SD card. It is always used by the
+ * SD card access token automatically to get the currently active SD card in a  thread safe way-
+ */
+class SdCardAccessManager {
+    friend class SdCardAccess;
+public:
+    virtual ~SdCardAccessManager();
+
+    static void create();
+
+    /**
+     * Returns the single instance of the SD card manager.
+     */
+    static SdCardAccessManager* instance();
+
+    sd::SdCard getPreferedSdCard() const;
+
+    /**
+     * Get current number of SD card users
+     * @param sdCard
+     * @return
+     */
+    uint8_t getSdCardAccessors(sd::SdCard sdCard) const;
+
+private:
+    SdCardAccessManager();
+    MutexIF* mutex;
+
+    uint8_t activeAccessesSdCard0 = 0;
+    uint8_t activeAccessesSdCard1 = 0;
+
+    static SdCardAccessManager* factoryInstance;
+};
+
+#endif /* BSP_Q7S_MEMORY_SDCARDACCESSMANAGER_H_ */
diff --git a/bsp_q7s/memory/definitions.h b/bsp_q7s/memory/definitions.h
new file mode 100644
index 00000000..460f294b
--- /dev/null
+++ b/bsp_q7s/memory/definitions.h
@@ -0,0 +1,15 @@
+#ifndef BSP_Q7S_MEMORY_DEFINITIONS_H_
+#define BSP_Q7S_MEMORY_DEFINITIONS_H_
+
+namespace sd {
+
+enum SdCard {
+    SLOT_0,
+    SLOT_1
+};
+
+}
+
+
+
+#endif /* BSP_Q7S_MEMORY_DEFINITIONS_H_ */
diff --git a/fsfw b/fsfw
index 38f2f69c..c2b8507d 160000
--- a/fsfw
+++ b/fsfw
@@ -1 +1 @@
-Subproject commit 38f2f69c784c74cd87a10dce6c968325cf1cb472
+Subproject commit c2b8507d2947c48e2a2cd19b71640471f436bc5c
diff --git a/linux/fsfwconfig/pollingsequence/pollingSequenceFactory.cpp b/linux/fsfwconfig/pollingsequence/pollingSequenceFactory.cpp
index 3b64724a..4e9b2b7b 100644
--- a/linux/fsfwconfig/pollingsequence/pollingSequenceFactory.cpp
+++ b/linux/fsfwconfig/pollingsequence/pollingSequenceFactory.cpp
@@ -430,46 +430,56 @@ ReturnValue_t pst::pstUart(FixedTimeslotTaskIF *thisSequence) {
             DeviceHandlerIF::PERFORM_OPERATION);
     thisSequence->addSlot(objects::SYRLINKS_HK_HANDLER, length * 0,
             DeviceHandlerIF::PERFORM_OPERATION);
+#if OBSW_ADD_ACS_BOARD == 1
     thisSequence->addSlot(objects::GPS0_HANDLER, length * 0,
             DeviceHandlerIF::PERFORM_OPERATION);
     thisSequence->addSlot(objects::GPS1_HANDLER, length * 0,
             DeviceHandlerIF::PERFORM_OPERATION);
+#endif
 
     thisSequence->addSlot(objects::PLOC_HANDLER, length * 0.2,
             DeviceHandlerIF::SEND_WRITE);
     thisSequence->addSlot(objects::SYRLINKS_HK_HANDLER, length * 0.2,
             DeviceHandlerIF::SEND_WRITE);
+#if OBSW_ADD_ACS_BOARD == 1
     thisSequence->addSlot(objects::GPS0_HANDLER, length * 0.2,
             DeviceHandlerIF::SEND_WRITE);
     thisSequence->addSlot(objects::GPS1_HANDLER, length * 0.2,
             DeviceHandlerIF::SEND_WRITE);
+#endif
 
     thisSequence->addSlot(objects::PLOC_HANDLER, length * 0.4,
             DeviceHandlerIF::GET_WRITE);
     thisSequence->addSlot(objects::SYRLINKS_HK_HANDLER, length * 0.4,
             DeviceHandlerIF::GET_WRITE);
+#if OBSW_ADD_ACS_BOARD == 1
     thisSequence->addSlot(objects::GPS0_HANDLER, length * 0.4,
             DeviceHandlerIF::GET_WRITE);
     thisSequence->addSlot(objects::GPS1_HANDLER, length * 0.4,
             DeviceHandlerIF::GET_WRITE);
+#endif
 
     thisSequence->addSlot(objects::PLOC_HANDLER, length * 0.6,
             DeviceHandlerIF::SEND_READ);
     thisSequence->addSlot(objects::SYRLINKS_HK_HANDLER, length * 0.6,
             DeviceHandlerIF::SEND_READ);
+#if OBSW_ADD_ACS_BOARD == 1
     thisSequence->addSlot(objects::GPS0_HANDLER, length * 0.6,
             DeviceHandlerIF::SEND_READ);
     thisSequence->addSlot(objects::GPS1_HANDLER, length * 0.6,
             DeviceHandlerIF::SEND_READ);
+#endif
 
     thisSequence->addSlot(objects::PLOC_HANDLER, length * 0.8,
             DeviceHandlerIF::GET_READ);
     thisSequence->addSlot(objects::SYRLINKS_HK_HANDLER, length * 0.8,
             DeviceHandlerIF::GET_READ);
+#if OBSW_ADD_ACS_BOARD == 1
     thisSequence->addSlot(objects::GPS0_HANDLER, length * 0.8,
             DeviceHandlerIF::GET_READ);
     thisSequence->addSlot(objects::GPS1_HANDLER, length * 0.8,
             DeviceHandlerIF::GET_READ);
+#endif
 
     if (thisSequence->checkSequence() != HasReturnvaluesIF::RETURN_OK) {
         sif::error << "UART PST initialization failed" << std::endl;
diff --git a/mission/core/GenericFactory.cpp b/mission/core/GenericFactory.cpp
index 2fcb4450..fae8b7d8 100644
--- a/mission/core/GenericFactory.cpp
+++ b/mission/core/GenericFactory.cpp
@@ -83,9 +83,4 @@ void ObjectFactory::produceGenericObjects() {
             pus::PUS_SERVICE_20);
     new CService200ModeCommanding(objects::PUS_SERVICE_200_MODE_MGMT,
             apid::EIVE_OBSW, pus::PUS_SERVICE_200);
-
-    /* Test Device Handler */
-#if OBSW_ADD_TEST_CODE == 1
-    new TestTask(objects::TEST_TASK);
-#endif
 }