Merge pull request 'PLOC MPSoC read file, fix write file' (#633) from ploc_mpsoc_read_file_2 into v2.1.0-dev

Reviewed-on: #633
2023-05-19 10:05:40 +02:00 · 2023-05-19 10:05:40 +02:00 · fa4a40da6e
commit fa4a40da6e
parent 8ed3bdc95c a814746c53
26 changed files with 1181 additions and 843 deletions
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@ -36,11 +36,18 @@ will consitute of a breaking change warranting a new major release:
 - Add support for MPSoC HK packet.
 - Add support for MPSoC Flash Directory Content Report.
 - Dynamically enable and disable HK packets for MPSoC on `ON` and `OFF` commands.
+- Add support for MPSoC Flash Directory Content Report.
+- Larger allowed path and file sizes for STR and PLOC MPSoC modules.
+- More robust MPSoC flash read and write command data handling.
 - Increase frequency of payload handlers from 0.8 seconds to 0.5 seconds.
+- Disable missed deadlines per default. Not useful in orbit, and triggers all the time on the EM
+  build after a number of subsequent runs, without any apparent reason (deadlines are not actually
+  missed, thread usage displayed is nominal)

 ## Added

 - Add the remaining system modes.
+- PLOC MPSoC flash read command working.

 ## Fixed

@ -57,6 +64,9 @@ will consitute of a breaking change warranting a new major release:
 - The PLOC MPSoC now waits 10 cycles before going to on. These wait cycles are necessary because
  the MPSoC is not ready to process commands without this additional boot time.
 - Fixed correction for `GPS Altitude` in case the sensor data is out of the expected bonds.
+- PLOC MPSoC special communication is now scheduled, which allows flash read and flash write
+  commands to work.
+- Fixed the MPSoC flash write command.

 # [v2.0.5] 2023-05-11

--- a/bsp_hosted/ObjectFactory.cpp
+++ b/bsp_hosted/ObjectFactory.cpp
@ -39,7 +39,7 @@
 #include "devices/gpioIds.h"
 #include "fsfw_hal/linux/gpio/Gpio.h"
 #include "linux/payload/PlocMpsocHandler.h"
-#include "linux/payload/PlocMpsocHelper.h"
+#include "linux/payload/PlocMpsocSpecialComHelper.h"
 #include "linux/payload/PlocSupervisorHandler.h"
 #include "linux/payload/PlocSupvUartMan.h"
 #include "test/gpio/DummyGpioIF.h"
@ -82,8 +82,8 @@ void ObjectFactory::produce(void* args) {
  auto mpsocCookie = new UartCookie(objects::PLOC_MPSOC_HANDLER, mpscoDev, uart::PLOC_MPSOC_BAUD,
                                    mpsoc::MAX_REPLY_SIZE, UartModes::NON_CANONICAL);
  mpsocCookie->setNoFixedSizeReply();
-  auto plocMpsocHelper = new PlocMPSoCHelper(objects::PLOC_MPSOC_HELPER);
-  new PlocMPSoCHandler(objects::PLOC_MPSOC_HANDLER, objects::UART_COM_IF, mpsocCookie,
+  auto plocMpsocHelper = new PlocMpsocSpecialComHelper(objects::PLOC_MPSOC_HELPER);
+  new PlocMpsocHandler(objects::PLOC_MPSOC_HANDLER, objects::UART_COM_IF, mpsocCookie,
                       plocMpsocHelper, Gpio(gpioIds::ENABLE_MPSOC_UART, dummyGpioIF),
                       objects::PLOC_SUPERVISOR_HANDLER);
 #endif /* OBSW_ADD_PLOC_MPSOC == 1 */
--- a/bsp_hosted/fsfwconfig/events/translateEvents.cpp
+++ b/bsp_hosted/fsfwconfig/events/translateEvents.cpp
@ -1,7 +1,7 @@
 /**
- * @brief    Auto-generated event translation file. Contains 291 translations.
+ * @brief    Auto-generated event translation file. Contains 295 translations.
 * @details
- * Generated on: 2023-04-17 11:34:19
+ * Generated on: 2023-05-17 17:15:34
 */
 #include "translateEvents.h"

@ -197,6 +197,10 @@ const char *MPSOC_EXE_INVALID_APID_STRING = "MPSOC_EXE_INVALID_APID";
 const char *MPSOC_HELPER_SEQ_CNT_MISMATCH_STRING = "MPSOC_HELPER_SEQ_CNT_MISMATCH";
 const char *MPSOC_TM_SIZE_ERROR_STRING = "MPSOC_TM_SIZE_ERROR";
 const char *MPSOC_TM_CRC_MISSMATCH_STRING = "MPSOC_TM_CRC_MISSMATCH";
+const char *MPSOC_FLASH_READ_PACKET_ERROR_STRING = "MPSOC_FLASH_READ_PACKET_ERROR";
+const char *MPSOC_FLASH_READ_FAILED_STRING = "MPSOC_FLASH_READ_FAILED";
+const char *MPSOC_FLASH_READ_SUCCESSFUL_STRING = "MPSOC_FLASH_READ_SUCCESSFUL";
+const char *MPSOC_READ_TIMEOUT_STRING = "MPSOC_READ_TIMEOUT";
 const char *TRANSITION_BACK_TO_OFF_STRING = "TRANSITION_BACK_TO_OFF";
 const char *NEG_V_OUT_OF_BOUNDS_STRING = "NEG_V_OUT_OF_BOUNDS";
 const char *U_DRO_OUT_OF_BOUNDS_STRING = "U_DRO_OUT_OF_BOUNDS";
@ -683,6 +687,14 @@ const char *translateEvents(Event event) {
      return MPSOC_TM_SIZE_ERROR_STRING;
    case (12613):
      return MPSOC_TM_CRC_MISSMATCH_STRING;
+    case (12614):
+      return MPSOC_FLASH_READ_PACKET_ERROR_STRING;
+    case (12615):
+      return MPSOC_FLASH_READ_FAILED_STRING;
+    case (12616):
+      return MPSOC_FLASH_READ_SUCCESSFUL_STRING;
+    case (12617):
+      return MPSOC_READ_TIMEOUT_STRING;
    case (12700):
      return TRANSITION_BACK_TO_OFF_STRING;
    case (12701):
--- a/bsp_hosted/fsfwconfig/objects/translateObjects.cpp
+++ b/bsp_hosted/fsfwconfig/objects/translateObjects.cpp
@ -2,7 +2,7 @@
 * @brief  Auto-generated object translation file.
 * @details
 * Contains 171 translations.
- * Generated on: 2023-04-17 11:34:19
+ * Generated on: 2023-05-17 17:15:34
 */
 #include "translateObjects.h"

--- a/bsp_q7s/OBSWConfig.h.in
+++ b/bsp_q7s/OBSWConfig.h.in
@ -72,7 +72,7 @@

 // Can be used to switch device to NORMAL mode immediately
 #define OBSW_SWITCH_TO_NORMAL_MODE_AFTER_STARTUP    0
-#define OBSW_PRINT_MISSED_DEADLINES                 1
+#define OBSW_PRINT_MISSED_DEADLINES                 0

 #define OBSW_MPSOC_JTAG_BOOT                        0
 #define OBSW_STAR_TRACKER_GROUND_CONFIG             @OBSW_STAR_TRACKER_GROUND_CONFIG@
--- a/bsp_q7s/core/ObjectFactory.cpp
+++ b/bsp_q7s/core/ObjectFactory.cpp
@ -10,10 +10,10 @@
 #include <linux/com/SyrlinksComHandler.h>
 #include <linux/payload/PlocMemoryDumper.h>
 #include <linux/payload/PlocMpsocHandler.h>
-#include <linux/payload/PlocMpsocHelper.h>
+#include <linux/payload/PlocMpsocSpecialComHelper.h>
 #include <linux/payload/PlocSupervisorHandler.h>
 #include <linux/payload/ScexUartReader.h>
-#include <linux/payload/plocMpscoDefs.h>
+#include <linux/payload/plocMpsocHelpers.h>
 #include <linux/power/CspComIF.h>
 #include <mission/acs/GyrL3gCustomHandler.h>
 #include <mission/acs/MgmLis3CustomHandler.h>
@ -623,8 +623,8 @@ void ObjectFactory::createPayloadComponents(LinuxLibgpioIF* gpioComIF, PowerSwit
      new SerialCookie(objects::PLOC_MPSOC_HANDLER, q7s::UART_PLOC_MPSOC_DEV,
                       serial::PLOC_MPSOC_BAUD, mpsoc::MAX_REPLY_SIZE, UartModes::NON_CANONICAL);
  mpsocCookie->setNoFixedSizeReply();
-  auto plocMpsocHelper = new PlocMPSoCHelper(objects::PLOC_MPSOC_HELPER);
-  auto* mpsocHandler = new PlocMPSoCHandler(
+  auto plocMpsocHelper = new PlocMpsocSpecialComHelper(objects::PLOC_MPSOC_HELPER);
+  auto* mpsocHandler = new PlocMpsocHandler(
      objects::PLOC_MPSOC_HANDLER, objects::UART_COM_IF, mpsocCookie, plocMpsocHelper,
      Gpio(gpioIds::ENABLE_MPSOC_UART, gpioComIF), objects::PLOC_SUPERVISOR_HANDLER);
  mpsocHandler->connectModeTreeParent(satsystem::payload::SUBSYSTEM);
--- a/bsp_q7s/core/scheduling.cpp
+++ b/bsp_q7s/core/scheduling.cpp
@ -345,7 +345,6 @@ void scheduling::initTasks() {
  }
 #endif /* OBSW_ADD_STAR_TRACKER == 1 */

-  // TODO: Use regular scheduler for this task
 #if OBSW_ADD_PLOC_MPSOC == 1
  PeriodicTaskIF* mpsocHelperTask = factory->createPeriodicTask(
      "PLOC_MPSOC_HELPER", 0, PeriodicTaskIF::MINIMUM_STACK_SIZE, 0.2, missedDeadlineFunc);
@ -472,6 +471,9 @@ void scheduling::initTasks() {
 #if OBSW_ADD_PLOC_SUPERVISOR == 1
  supvHelperTask->startTask();
 #endif /* OBSW_ADD_PLOC_SUPERVISOR == 1 */
+#if OBSW_ADD_PLOC_MPSOC == 1
+  mpsocHelperTask->startTask();
+#endif
  plTask->startTask();

 #if OBSW_ADD_TEST_CODE == 1
--- a/common/config/eive/definitions.h
+++ b/common/config/eive/definitions.h
@ -34,8 +34,8 @@ static constexpr uint32_t STR_IMG_HELPER_QUEUE_SIZE = 50;
 static constexpr uint8_t LIVE_TM = 0;

 /* Limits for filename and path checks */
-static constexpr uint32_t MAX_PATH_SIZE = 100;
-static constexpr uint32_t MAX_FILENAME_SIZE = 50;
+static constexpr uint32_t MAX_PATH_SIZE = 200;
+static constexpr uint32_t MAX_FILENAME_SIZE = 100;

 static constexpr uint32_t SA_DEPL_INIT_BUFFER_SECS = 120;
 // Burn time for autonomous deployment
--- a/generators/bsp_hosted_events.csv
+++ b/generators/bsp_hosted_events.csv
@ -177,20 +177,24 @@ Event ID (dec); Event ID (hex); Name; Severity; Description; File Path
 12515;0x30e3;STR_HELPER_FILE_NOT_EXISTS;LOW;Specified file does not exist P1: Internal state of str helper;linux/acs/StrComHandler.h
 12516;0x30e4;STR_HELPER_SENDING_PACKET_FAILED;LOW;No description;linux/acs/StrComHandler.h
 12517;0x30e5;STR_HELPER_REQUESTING_MSG_FAILED;LOW;No description;linux/acs/StrComHandler.h
-12600;0x3138;MPSOC_FLASH_WRITE_FAILED;LOW;Flash write fails;linux/payload/PlocMpsocHelper.h
-12601;0x3139;MPSOC_FLASH_WRITE_SUCCESSFUL;LOW;Flash write successful;linux/payload/PlocMpsocHelper.h
-12602;0x313a;MPSOC_SENDING_COMMAND_FAILED;LOW;No description;linux/payload/PlocMpsocHelper.h
-12603;0x313b;MPSOC_HELPER_REQUESTING_REPLY_FAILED;LOW;Request receive message of communication interface failed P1: Return value returned by the communication interface requestReceiveMessage function P2: Internal state of MPSoC helper;linux/payload/PlocMpsocHelper.h
-12604;0x313c;MPSOC_HELPER_READING_REPLY_FAILED;LOW;Reading receive message of communication interface failed P1: Return value returned by the communication interface readingReceivedMessage function P2: Internal state of MPSoC helper;linux/payload/PlocMpsocHelper.h
-12605;0x313d;MPSOC_MISSING_ACK;LOW;Did not receive acknowledgment report P1: Number of bytes missing P2: Internal state of MPSoC helper;linux/payload/PlocMpsocHelper.h
-12606;0x313e;MPSOC_MISSING_EXE;LOW;Did not receive execution report P1: Number of bytes missing P2: Internal state of MPSoC helper;linux/payload/PlocMpsocHelper.h
-12607;0x313f;MPSOC_ACK_FAILURE_REPORT;LOW;Received acknowledgment failure report P1: Internal state of MPSoC;linux/payload/PlocMpsocHelper.h
-12608;0x3140;MPSOC_EXE_FAILURE_REPORT;LOW;Received execution failure report P1: Internal state of MPSoC;linux/payload/PlocMpsocHelper.h
-12609;0x3141;MPSOC_ACK_INVALID_APID;LOW;Expected acknowledgment report but received space packet with other apid P1: Apid of received space packet P2: Internal state of MPSoC;linux/payload/PlocMpsocHelper.h
-12610;0x3142;MPSOC_EXE_INVALID_APID;LOW;Expected execution report but received space packet with other apid P1: Apid of received space packet P2: Internal state of MPSoC;linux/payload/PlocMpsocHelper.h
-12611;0x3143;MPSOC_HELPER_SEQ_CNT_MISMATCH;LOW;Received sequence count does not match expected sequence count P1: Expected sequence count P2: Received sequence count;linux/payload/PlocMpsocHelper.h
-12612;0x3144;MPSOC_TM_SIZE_ERROR;LOW;No description;linux/payload/PlocMpsocHelper.h
-12613;0x3145;MPSOC_TM_CRC_MISSMATCH;LOW;No description;linux/payload/PlocMpsocHelper.h
+12600;0x3138;MPSOC_FLASH_WRITE_FAILED;LOW;Flash write fails;linux/payload/PlocMpsocSpecialComHelper.h
+12601;0x3139;MPSOC_FLASH_WRITE_SUCCESSFUL;INFO;Flash write successful;linux/payload/PlocMpsocSpecialComHelper.h
+12602;0x313a;MPSOC_SENDING_COMMAND_FAILED;LOW;No description;linux/payload/PlocMpsocSpecialComHelper.h
+12603;0x313b;MPSOC_HELPER_REQUESTING_REPLY_FAILED;LOW;Request receive message of communication interface failed P1: Return value returned by the communication interface requestReceiveMessage function P2: Internal state of MPSoC helper;linux/payload/PlocMpsocSpecialComHelper.h
+12604;0x313c;MPSOC_HELPER_READING_REPLY_FAILED;LOW;Reading receive message of communication interface failed P1: Return value returned by the communication interface readingReceivedMessage function P2: Internal state of MPSoC helper;linux/payload/PlocMpsocSpecialComHelper.h
+12605;0x313d;MPSOC_MISSING_ACK;LOW;Did not receive acknowledgment report P1: Number of bytes missing P2: Internal state of MPSoC helper;linux/payload/PlocMpsocSpecialComHelper.h
+12606;0x313e;MPSOC_MISSING_EXE;LOW;Did not receive execution report P1: Number of bytes missing P2: Internal state of MPSoC helper;linux/payload/PlocMpsocSpecialComHelper.h
+12607;0x313f;MPSOC_ACK_FAILURE_REPORT;LOW;Received acknowledgment failure report P1: Internal state of MPSoC;linux/payload/PlocMpsocSpecialComHelper.h
+12608;0x3140;MPSOC_EXE_FAILURE_REPORT;LOW;Received execution failure report P1: Internal state of MPSoC;linux/payload/PlocMpsocSpecialComHelper.h
+12609;0x3141;MPSOC_ACK_INVALID_APID;LOW;Expected acknowledgment report but received space packet with other apid P1: Apid of received space packet P2: Internal state of MPSoC;linux/payload/PlocMpsocSpecialComHelper.h
+12610;0x3142;MPSOC_EXE_INVALID_APID;LOW;Expected execution report but received space packet with other apid P1: Apid of received space packet P2: Internal state of MPSoC;linux/payload/PlocMpsocSpecialComHelper.h
+12611;0x3143;MPSOC_HELPER_SEQ_CNT_MISMATCH;LOW;Received sequence count does not match expected sequence count P1: Expected sequence count P2: Received sequence count;linux/payload/PlocMpsocSpecialComHelper.h
+12612;0x3144;MPSOC_TM_SIZE_ERROR;LOW;No description;linux/payload/PlocMpsocSpecialComHelper.h
+12613;0x3145;MPSOC_TM_CRC_MISSMATCH;LOW;No description;linux/payload/PlocMpsocSpecialComHelper.h
+12614;0x3146;MPSOC_FLASH_READ_PACKET_ERROR;LOW;No description;linux/payload/PlocMpsocSpecialComHelper.h
+12615;0x3147;MPSOC_FLASH_READ_FAILED;LOW;No description;linux/payload/PlocMpsocSpecialComHelper.h
+12616;0x3148;MPSOC_FLASH_READ_SUCCESSFUL;INFO;No description;linux/payload/PlocMpsocSpecialComHelper.h
+12617;0x3149;MPSOC_READ_TIMEOUT;LOW;No description;linux/payload/PlocMpsocSpecialComHelper.h
 12700;0x319c;TRANSITION_BACK_TO_OFF;MEDIUM;Could not transition properly and went back to ALL OFF;mission/payload/PayloadPcduHandler.h
 12701;0x319d;NEG_V_OUT_OF_BOUNDS;MEDIUM;P1: 0 -> too low, 1 -> too high P2: Float value;mission/payload/PayloadPcduHandler.h
 12702;0x319e;U_DRO_OUT_OF_BOUNDS;MEDIUM;P1: 0 -> too low, 1 -> too high P2: Float value;mission/payload/PayloadPcduHandler.h
@ -274,7 +278,7 @@ Event ID (dec); Event ID (hex); Name; Severity; Description; File Path
 14105;0x3719;CAMERA_OVERHEATING;HIGH;No description;mission/controller/tcsDefs.h
 14106;0x371a;PCDU_SYSTEM_OVERHEATING;HIGH;No description;mission/controller/tcsDefs.h
 14107;0x371b;HEATER_NOT_OFF_FOR_OFF_MODE;MEDIUM;No description;mission/controller/tcsDefs.h
-14108;0x371c;MGT_OVERHEATING;MEDIUM;No description;mission/controller/tcsDefs.h
+14108;0x371c;MGT_OVERHEATING;HIGH;No description;mission/controller/tcsDefs.h
 14201;0x3779;TX_TIMER_EXPIRED;INFO;The transmit timer to protect the Syrlinks expired P1: The current timer value;mission/system/com/ComSubsystem.h
 14202;0x377a;BIT_LOCK_TX_ON;INFO;Transmitter will be turned on due to detection of bitlock;mission/system/com/ComSubsystem.h
 14300;0x37dc;POSSIBLE_FILE_CORRUPTION;LOW;P1: Result code of TM packet parser. P2: Timestamp of possibly corrupt file as a unix timestamp.;mission/persistentTmStoreDefs.h
--- a/generators/bsp_q7s_events.csv
+++ b/generators/bsp_q7s_events.csv
@ -177,20 +177,24 @@ Event ID (dec); Event ID (hex); Name; Severity; Description; File Path
 12515;0x30e3;STR_HELPER_FILE_NOT_EXISTS;LOW;Specified file does not exist P1: Internal state of str helper;linux/acs/StrComHandler.h
 12516;0x30e4;STR_HELPER_SENDING_PACKET_FAILED;LOW;No description;linux/acs/StrComHandler.h
 12517;0x30e5;STR_HELPER_REQUESTING_MSG_FAILED;LOW;No description;linux/acs/StrComHandler.h
-12600;0x3138;MPSOC_FLASH_WRITE_FAILED;LOW;Flash write fails;linux/payload/PlocMpsocHelper.h
-12601;0x3139;MPSOC_FLASH_WRITE_SUCCESSFUL;LOW;Flash write successful;linux/payload/PlocMpsocHelper.h
-12602;0x313a;MPSOC_SENDING_COMMAND_FAILED;LOW;No description;linux/payload/PlocMpsocHelper.h
-12603;0x313b;MPSOC_HELPER_REQUESTING_REPLY_FAILED;LOW;Request receive message of communication interface failed P1: Return value returned by the communication interface requestReceiveMessage function P2: Internal state of MPSoC helper;linux/payload/PlocMpsocHelper.h
-12604;0x313c;MPSOC_HELPER_READING_REPLY_FAILED;LOW;Reading receive message of communication interface failed P1: Return value returned by the communication interface readingReceivedMessage function P2: Internal state of MPSoC helper;linux/payload/PlocMpsocHelper.h
-12605;0x313d;MPSOC_MISSING_ACK;LOW;Did not receive acknowledgment report P1: Number of bytes missing P2: Internal state of MPSoC helper;linux/payload/PlocMpsocHelper.h
-12606;0x313e;MPSOC_MISSING_EXE;LOW;Did not receive execution report P1: Number of bytes missing P2: Internal state of MPSoC helper;linux/payload/PlocMpsocHelper.h
-12607;0x313f;MPSOC_ACK_FAILURE_REPORT;LOW;Received acknowledgment failure report P1: Internal state of MPSoC;linux/payload/PlocMpsocHelper.h
-12608;0x3140;MPSOC_EXE_FAILURE_REPORT;LOW;Received execution failure report P1: Internal state of MPSoC;linux/payload/PlocMpsocHelper.h
-12609;0x3141;MPSOC_ACK_INVALID_APID;LOW;Expected acknowledgment report but received space packet with other apid P1: Apid of received space packet P2: Internal state of MPSoC;linux/payload/PlocMpsocHelper.h
-12610;0x3142;MPSOC_EXE_INVALID_APID;LOW;Expected execution report but received space packet with other apid P1: Apid of received space packet P2: Internal state of MPSoC;linux/payload/PlocMpsocHelper.h
-12611;0x3143;MPSOC_HELPER_SEQ_CNT_MISMATCH;LOW;Received sequence count does not match expected sequence count P1: Expected sequence count P2: Received sequence count;linux/payload/PlocMpsocHelper.h
-12612;0x3144;MPSOC_TM_SIZE_ERROR;LOW;No description;linux/payload/PlocMpsocHelper.h
-12613;0x3145;MPSOC_TM_CRC_MISSMATCH;LOW;No description;linux/payload/PlocMpsocHelper.h
+12600;0x3138;MPSOC_FLASH_WRITE_FAILED;LOW;Flash write fails;linux/payload/PlocMpsocSpecialComHelper.h
+12601;0x3139;MPSOC_FLASH_WRITE_SUCCESSFUL;INFO;Flash write successful;linux/payload/PlocMpsocSpecialComHelper.h
+12602;0x313a;MPSOC_SENDING_COMMAND_FAILED;LOW;No description;linux/payload/PlocMpsocSpecialComHelper.h
+12603;0x313b;MPSOC_HELPER_REQUESTING_REPLY_FAILED;LOW;Request receive message of communication interface failed P1: Return value returned by the communication interface requestReceiveMessage function P2: Internal state of MPSoC helper;linux/payload/PlocMpsocSpecialComHelper.h
+12604;0x313c;MPSOC_HELPER_READING_REPLY_FAILED;LOW;Reading receive message of communication interface failed P1: Return value returned by the communication interface readingReceivedMessage function P2: Internal state of MPSoC helper;linux/payload/PlocMpsocSpecialComHelper.h
+12605;0x313d;MPSOC_MISSING_ACK;LOW;Did not receive acknowledgment report P1: Number of bytes missing P2: Internal state of MPSoC helper;linux/payload/PlocMpsocSpecialComHelper.h
+12606;0x313e;MPSOC_MISSING_EXE;LOW;Did not receive execution report P1: Number of bytes missing P2: Internal state of MPSoC helper;linux/payload/PlocMpsocSpecialComHelper.h
+12607;0x313f;MPSOC_ACK_FAILURE_REPORT;LOW;Received acknowledgment failure report P1: Internal state of MPSoC;linux/payload/PlocMpsocSpecialComHelper.h
+12608;0x3140;MPSOC_EXE_FAILURE_REPORT;LOW;Received execution failure report P1: Internal state of MPSoC;linux/payload/PlocMpsocSpecialComHelper.h
+12609;0x3141;MPSOC_ACK_INVALID_APID;LOW;Expected acknowledgment report but received space packet with other apid P1: Apid of received space packet P2: Internal state of MPSoC;linux/payload/PlocMpsocSpecialComHelper.h
+12610;0x3142;MPSOC_EXE_INVALID_APID;LOW;Expected execution report but received space packet with other apid P1: Apid of received space packet P2: Internal state of MPSoC;linux/payload/PlocMpsocSpecialComHelper.h
+12611;0x3143;MPSOC_HELPER_SEQ_CNT_MISMATCH;LOW;Received sequence count does not match expected sequence count P1: Expected sequence count P2: Received sequence count;linux/payload/PlocMpsocSpecialComHelper.h
+12612;0x3144;MPSOC_TM_SIZE_ERROR;LOW;No description;linux/payload/PlocMpsocSpecialComHelper.h
+12613;0x3145;MPSOC_TM_CRC_MISSMATCH;LOW;No description;linux/payload/PlocMpsocSpecialComHelper.h
+12614;0x3146;MPSOC_FLASH_READ_PACKET_ERROR;LOW;No description;linux/payload/PlocMpsocSpecialComHelper.h
+12615;0x3147;MPSOC_FLASH_READ_FAILED;LOW;No description;linux/payload/PlocMpsocSpecialComHelper.h
+12616;0x3148;MPSOC_FLASH_READ_SUCCESSFUL;INFO;No description;linux/payload/PlocMpsocSpecialComHelper.h
+12617;0x3149;MPSOC_READ_TIMEOUT;LOW;No description;linux/payload/PlocMpsocSpecialComHelper.h
 12700;0x319c;TRANSITION_BACK_TO_OFF;MEDIUM;Could not transition properly and went back to ALL OFF;mission/payload/PayloadPcduHandler.h
 12701;0x319d;NEG_V_OUT_OF_BOUNDS;MEDIUM;P1: 0 -> too low, 1 -> too high P2: Float value;mission/payload/PayloadPcduHandler.h
 12702;0x319e;U_DRO_OUT_OF_BOUNDS;MEDIUM;P1: 0 -> too low, 1 -> too high P2: Float value;mission/payload/PayloadPcduHandler.h
@ -274,7 +278,7 @@ Event ID (dec); Event ID (hex); Name; Severity; Description; File Path
 14105;0x3719;CAMERA_OVERHEATING;HIGH;No description;mission/controller/tcsDefs.h
 14106;0x371a;PCDU_SYSTEM_OVERHEATING;HIGH;No description;mission/controller/tcsDefs.h
 14107;0x371b;HEATER_NOT_OFF_FOR_OFF_MODE;MEDIUM;No description;mission/controller/tcsDefs.h
-14108;0x371c;MGT_OVERHEATING;MEDIUM;No description;mission/controller/tcsDefs.h
+14108;0x371c;MGT_OVERHEATING;HIGH;No description;mission/controller/tcsDefs.h
 14201;0x3779;TX_TIMER_EXPIRED;INFO;The transmit timer to protect the Syrlinks expired P1: The current timer value;mission/system/com/ComSubsystem.h
 14202;0x377a;BIT_LOCK_TX_ON;INFO;Transmitter will be turned on due to detection of bitlock;mission/system/com/ComSubsystem.h
 14300;0x37dc;POSSIBLE_FILE_CORRUPTION;LOW;P1: Result code of TM packet parser. P2: Timestamp of possibly corrupt file as a unix timestamp.;mission/persistentTmStoreDefs.h
--- a/generators/bsp_q7s_returnvalues.csv
+++ b/generators/bsp_q7s_returnvalues.csv
@ -478,8 +478,8 @@ Full ID (hex); Name; Description; Unique ID; Subsytem Name; File Path
 0x53b6;STRH_StartrackerAlreadyBooted;Star tracker is already in firmware mode;182;STR_HANDLER;mission/acs/str/StarTrackerHandler.h
 0x53b7;STRH_StartrackerNotRunningFirmware;Star tracker must be in firmware mode to run this command;183;STR_HANDLER;mission/acs/str/StarTrackerHandler.h
 0x53b8;STRH_StartrackerNotRunningBootloader;Star tracker must be in bootloader mode to run this command;184;STR_HANDLER;mission/acs/str/StarTrackerHandler.h
-0x54e0;DWLPWRON_InvalidMode;Received command has invalid JESD mode (valid modes are 0 - 5);224;DWLPWRON_CMD;linux/payload/plocMpscoDefs.h
-0x54e1;DWLPWRON_InvalidLaneRate;Received command has invalid lane rate (valid lane rate are 0 - 9);225;DWLPWRON_CMD;linux/payload/plocMpscoDefs.h
+0x54e0;DWLPWRON_InvalidMode;Received command has invalid JESD mode (valid modes are 0 - 5);224;DWLPWRON_CMD;linux/payload/plocMpsocHelpers.h
+0x54e1;DWLPWRON_InvalidLaneRate;Received command has invalid lane rate (valid lane rate are 0 - 9);225;DWLPWRON_CMD;linux/payload/plocMpsocHelpers.h
 0x5700;PLSPVhLP_RequestDone;No description;0;PLOC_SUPV_HELPER;linux/payload/PlocSupvUartMan.h
 0x5701;PLSPVhLP_NoPacketFound;No description;1;PLOC_SUPV_HELPER;linux/payload/PlocSupvUartMan.h
 0x5702;PLSPVhLP_DecodeBufTooSmall;No description;2;PLOC_SUPV_HELPER;linux/payload/PlocSupvUartMan.h
@ -543,7 +543,8 @@ Full ID (hex); Name; Description; Unique ID; Subsytem Name; File Path
 0x63a0;NVMB_KeyNotExists;Specified key does not exist in json file;160;NVM_PARAM_BASE;mission/memory/NvmParameterBase.h
 0x64a0;FSHLP_SdNotMounted;SD card specified with path string not mounted;160;FILE_SYSTEM_HELPER;bsp_q7s/fs/FilesystemHelper.h
 0x64a1;FSHLP_FileNotExists;Specified file does not exist on filesystem;161;FILE_SYSTEM_HELPER;bsp_q7s/fs/FilesystemHelper.h
-0x65a0;PLMPHLP_FileClosedAccidentally;File accidentally close;160;PLOC_MPSOC_HELPER;linux/payload/PlocMpsocHelper.h
+0x65a0;PLMPHLP_FileWriteError;File error occured for file transfers from OBC to the MPSoC.;160;PLOC_MPSOC_HELPER;linux/payload/PlocMpsocSpecialComHelper.h
+0x65a1;PLMPHLP_FileReadError;File error occured for file transfers from MPSoC to OBC.;161;PLOC_MPSOC_HELPER;linux/payload/PlocMpsocSpecialComHelper.h
 0x66a0;SADPL_CommandNotSupported;No description;160;SA_DEPL_HANDLER;mission/SolarArrayDeploymentHandler.h
 0x66a1;SADPL_DeploymentAlreadyExecuting;No description;161;SA_DEPL_HANDLER;mission/SolarArrayDeploymentHandler.h
 0x66a2;SADPL_MainSwitchTimeoutFailure;No description;162;SA_DEPL_HANDLER;mission/SolarArrayDeploymentHandler.h
--- a/generators/events/translateEvents.cpp
+++ b/generators/events/translateEvents.cpp
@ -1,7 +1,7 @@
 /**
- * @brief    Auto-generated event translation file. Contains 291 translations.
+ * @brief    Auto-generated event translation file. Contains 295 translations.
 * @details
- * Generated on: 2023-04-17 11:34:19
+ * Generated on: 2023-05-17 17:15:34
 */
 #include "translateEvents.h"

@ -197,6 +197,10 @@ const char *MPSOC_EXE_INVALID_APID_STRING = "MPSOC_EXE_INVALID_APID";
 const char *MPSOC_HELPER_SEQ_CNT_MISMATCH_STRING = "MPSOC_HELPER_SEQ_CNT_MISMATCH";
 const char *MPSOC_TM_SIZE_ERROR_STRING = "MPSOC_TM_SIZE_ERROR";
 const char *MPSOC_TM_CRC_MISSMATCH_STRING = "MPSOC_TM_CRC_MISSMATCH";
+const char *MPSOC_FLASH_READ_PACKET_ERROR_STRING = "MPSOC_FLASH_READ_PACKET_ERROR";
+const char *MPSOC_FLASH_READ_FAILED_STRING = "MPSOC_FLASH_READ_FAILED";
+const char *MPSOC_FLASH_READ_SUCCESSFUL_STRING = "MPSOC_FLASH_READ_SUCCESSFUL";
+const char *MPSOC_READ_TIMEOUT_STRING = "MPSOC_READ_TIMEOUT";
 const char *TRANSITION_BACK_TO_OFF_STRING = "TRANSITION_BACK_TO_OFF";
 const char *NEG_V_OUT_OF_BOUNDS_STRING = "NEG_V_OUT_OF_BOUNDS";
 const char *U_DRO_OUT_OF_BOUNDS_STRING = "U_DRO_OUT_OF_BOUNDS";
@ -683,6 +687,14 @@ const char *translateEvents(Event event) {
      return MPSOC_TM_SIZE_ERROR_STRING;
    case (12613):
      return MPSOC_TM_CRC_MISSMATCH_STRING;
+    case (12614):
+      return MPSOC_FLASH_READ_PACKET_ERROR_STRING;
+    case (12615):
+      return MPSOC_FLASH_READ_FAILED_STRING;
+    case (12616):
+      return MPSOC_FLASH_READ_SUCCESSFUL_STRING;
+    case (12617):
+      return MPSOC_READ_TIMEOUT_STRING;
    case (12700):
      return TRANSITION_BACK_TO_OFF_STRING;
    case (12701):
--- a/generators/objects/translateObjects.cpp
+++ b/generators/objects/translateObjects.cpp
@ -2,7 +2,7 @@
 * @brief  Auto-generated object translation file.
 * @details
 * Contains 175 translations.
- * Generated on: 2023-04-17 11:34:19
+ * Generated on: 2023-05-17 17:15:34
 */
 #include "translateObjects.h"

--- a/linux/fsfwconfig/events/translateEvents.cpp
+++ b/linux/fsfwconfig/events/translateEvents.cpp
@ -1,7 +1,7 @@
 /**
- * @brief    Auto-generated event translation file. Contains 291 translations.
+ * @brief    Auto-generated event translation file. Contains 295 translations.
 * @details
- * Generated on: 2023-04-17 11:34:19
+ * Generated on: 2023-05-17 17:15:34
 */
 #include "translateEvents.h"

@ -197,6 +197,10 @@ const char *MPSOC_EXE_INVALID_APID_STRING = "MPSOC_EXE_INVALID_APID";
 const char *MPSOC_HELPER_SEQ_CNT_MISMATCH_STRING = "MPSOC_HELPER_SEQ_CNT_MISMATCH";
 const char *MPSOC_TM_SIZE_ERROR_STRING = "MPSOC_TM_SIZE_ERROR";
 const char *MPSOC_TM_CRC_MISSMATCH_STRING = "MPSOC_TM_CRC_MISSMATCH";
+const char *MPSOC_FLASH_READ_PACKET_ERROR_STRING = "MPSOC_FLASH_READ_PACKET_ERROR";
+const char *MPSOC_FLASH_READ_FAILED_STRING = "MPSOC_FLASH_READ_FAILED";
+const char *MPSOC_FLASH_READ_SUCCESSFUL_STRING = "MPSOC_FLASH_READ_SUCCESSFUL";
+const char *MPSOC_READ_TIMEOUT_STRING = "MPSOC_READ_TIMEOUT";
 const char *TRANSITION_BACK_TO_OFF_STRING = "TRANSITION_BACK_TO_OFF";
 const char *NEG_V_OUT_OF_BOUNDS_STRING = "NEG_V_OUT_OF_BOUNDS";
 const char *U_DRO_OUT_OF_BOUNDS_STRING = "U_DRO_OUT_OF_BOUNDS";
@ -683,6 +687,14 @@ const char *translateEvents(Event event) {
      return MPSOC_TM_SIZE_ERROR_STRING;
    case (12613):
      return MPSOC_TM_CRC_MISSMATCH_STRING;
+    case (12614):
+      return MPSOC_FLASH_READ_PACKET_ERROR_STRING;
+    case (12615):
+      return MPSOC_FLASH_READ_FAILED_STRING;
+    case (12616):
+      return MPSOC_FLASH_READ_SUCCESSFUL_STRING;
+    case (12617):
+      return MPSOC_READ_TIMEOUT_STRING;
    case (12700):
      return TRANSITION_BACK_TO_OFF_STRING;
    case (12701):
--- a/linux/fsfwconfig/objects/translateObjects.cpp
+++ b/linux/fsfwconfig/objects/translateObjects.cpp
@ -2,7 +2,7 @@
 * @brief  Auto-generated object translation file.
 * @details
 * Contains 175 translations.
- * Generated on: 2023-04-17 11:34:19
+ * Generated on: 2023-05-17 17:15:34
 */
 #include "translateObjects.h"

--- a/linux/payload/CMakeLists.txt
+++ b/linux/payload/CMakeLists.txt
@ -2,7 +2,8 @@ target_sources(
  ${OBSW_NAME}
  PUBLIC PlocMemoryDumper.cpp
         PlocMpsocHandler.cpp
-         PlocMpsocHelper.cpp
+         PlocMpsocSpecialComHelper.cpp
+         plocMpsocHelpers.cpp
         PlocSupervisorHandler.cpp
         PlocSupvUartMan.cpp
         ScexDleParser.cpp
--- a/linux/payload/PlocMpsocHandler.cpp
+++ b/linux/payload/PlocMpsocHandler.cpp
@ -8,12 +8,12 @@
 #include "fsfw/datapool/PoolReadGuard.h"
 #include "fsfw/globalfunctions/CRC.h"

-PlocMPSoCHandler::PlocMPSoCHandler(object_id_t objectId, object_id_t uartComIFid,
-                                   CookieIF* comCookie, PlocMPSoCHelper* plocMPSoCHelper,
+PlocMpsocHandler::PlocMpsocHandler(object_id_t objectId, object_id_t uartComIFid,
+                                   CookieIF* comCookie, PlocMpsocSpecialComHelper* plocMPSoCHelper,
                                   Gpio uartIsolatorSwitch, object_id_t supervisorHandler)
    : DeviceHandlerBase(objectId, uartComIFid, comCookie),
      hkReport(this),
-      plocMPSoCHelper(plocMPSoCHelper),
+      specialComHelper(plocMPSoCHelper),
      uartIsolatorSwitch(uartIsolatorSwitch),
      supervisorHandler(supervisorHandler),
      commandActionHelper(this) {
@ -27,9 +27,9 @@ PlocMPSoCHandler::PlocMPSoCHandler(object_id_t objectId, object_id_t uartComIFid
  spParams.buf = commandBuffer;
 }

-PlocMPSoCHandler::~PlocMPSoCHandler() {}
+PlocMpsocHandler::~PlocMpsocHandler() {}

-ReturnValue_t PlocMPSoCHandler::initialize() {
+ReturnValue_t PlocMpsocHandler::initialize() {
  ReturnValue_t result = returnvalue::OK;
  result = DeviceHandlerBase::initialize();
  if (result != returnvalue::OK) {
@ -53,24 +53,35 @@ ReturnValue_t PlocMPSoCHandler::initialize() {
  if (result != returnvalue::OK) {
    return result;
  }
-  result = manager->subscribeToEventRange(
-      eventQueue->getId(), event::getEventId(PlocMPSoCHelper::MPSOC_FLASH_WRITE_FAILED),
-      event::getEventId(PlocMPSoCHelper::MPSOC_FLASH_WRITE_SUCCESSFUL));
+  result = manager->subscribeToEvent(
+      eventQueue->getId(), event::getEventId(PlocMpsocSpecialComHelper::MPSOC_FLASH_WRITE_FAILED));
+  if (result != returnvalue::OK) {
+    return ObjectManagerIF::CHILD_INIT_FAILED;
+  }
+  result = manager->subscribeToEvent(
+      eventQueue->getId(),
+      event::getEventId(PlocMpsocSpecialComHelper::MPSOC_FLASH_WRITE_SUCCESSFUL));
+  if (result != returnvalue::OK) {
+    return ObjectManagerIF::CHILD_INIT_FAILED;
+  }
+  result = manager->subscribeToEvent(
+      eventQueue->getId(),
+      event::getEventId(PlocMpsocSpecialComHelper::MPSOC_FLASH_READ_SUCCESSFUL));
+  if (result != returnvalue::OK) {
+    return ObjectManagerIF::CHILD_INIT_FAILED;
+  }
+  result = manager->subscribeToEvent(
+      eventQueue->getId(), event::getEventId(PlocMpsocSpecialComHelper::MPSOC_FLASH_READ_FAILED));
  if (result != returnvalue::OK) {
-#if FSFW_CPP_OSTREAM_ENABLED == 1
-    sif::warning << "PlocMPSoCHandler::initialize: Failed to subscribe to events from "
-                    " ploc mpsoc helper"
-                 << std::endl;
-#endif
    return ObjectManagerIF::CHILD_INIT_FAILED;
  }

-  result = plocMPSoCHelper->setComIF(communicationInterface);
+  result = specialComHelper->setComIF(communicationInterface);
  if (result != returnvalue::OK) {
    return ObjectManagerIF::CHILD_INIT_FAILED;
  }
-  plocMPSoCHelper->setComCookie(comCookie);
-  plocMPSoCHelper->setSequenceCount(&sequenceCount);
+  specialComHelper->setComCookie(comCookie);
+  specialComHelper->setSequenceCount(&sequenceCount);
  result = commandActionHelper.initialize();
  if (result != returnvalue::OK) {
    return ObjectManagerIF::CHILD_INIT_FAILED;
@ -78,7 +89,12 @@ ReturnValue_t PlocMPSoCHandler::initialize() {
  return result;
 }

-void PlocMPSoCHandler::performOperationHook() {
+void PlocMpsocHandler::performOperationHook() {
+  if (commandIsPending and cmdCountdown.hasTimedOut()) {
+    commandIsPending = false;
+    // TODO: Better returnvalue?
+    cmdDoneHandler(false, returnvalue::FAILED);
+  }
  EventMessage event;
  for (ReturnValue_t result = eventQueue->receiveMessage(&event); result == returnvalue::OK;
       result = eventQueue->receiveMessage(&event)) {
@ -102,10 +118,9 @@ void PlocMPSoCHandler::performOperationHook() {
  }
 }

-ReturnValue_t PlocMPSoCHandler::executeAction(ActionId_t actionId, MessageQueueId_t commandedBy,
+ReturnValue_t PlocMpsocHandler::executeAction(ActionId_t actionId, MessageQueueId_t commandedBy,
                                              const uint8_t* data, size_t size) {
  ReturnValue_t result = returnvalue::OK;
-  commandIsPending = true;
  switch (actionId) {
    case mpsoc::SET_UART_TX_TRISTATE: {
      uartIsolatorSwitch.pullLow();
@ -121,26 +136,38 @@ ReturnValue_t PlocMPSoCHandler::executeAction(ActionId_t actionId, MessageQueueI
    }
  }

-  if (plocMPSoCHelperExecuting) {
+  if (specialComHelperExecuting) {
    return MPSoCReturnValuesIF::MPSOC_HELPER_EXECUTING;
  }

  switch (actionId) {
-    case mpsoc::TC_FLASHWRITE: {
-      if (size > config::MAX_PATH_SIZE + config::MAX_FILENAME_SIZE) {
-        return MPSoCReturnValuesIF::FILENAME_TOO_LONG;
-      }
-      mpsoc::FlashWritePusCmd flashWritePusCmd;
+    case mpsoc::TC_FLASH_WRITE_FULL_FILE: {
+      mpsoc::FlashBasePusCmd flashWritePusCmd;
      result = flashWritePusCmd.extractFields(data, size);
      if (result != returnvalue::OK) {
        return result;
      }
-      result = plocMPSoCHelper->startFlashWrite(flashWritePusCmd.getObcFile(),
-                                                flashWritePusCmd.getMPSoCFile());
+      result = specialComHelper->startFlashWrite(flashWritePusCmd.getObcFile(),
+                                                 flashWritePusCmd.getMPSoCFile());
      if (result != returnvalue::OK) {
        return result;
      }
-      plocMPSoCHelperExecuting = true;
+      specialComHelperExecuting = true;
+      return EXECUTION_FINISHED;
+    }
+    case mpsoc::TC_FLASH_READ_FULL_FILE: {
+      mpsoc::FlashReadPusCmd flashReadPusCmd;
+      result = flashReadPusCmd.extractFields(data, size);
+      if (result != returnvalue::OK) {
+        return result;
+      }
+      result = specialComHelper->startFlashRead(flashReadPusCmd.getObcFile(),
+                                                flashReadPusCmd.getMPSoCFile(),
+                                                flashReadPusCmd.getReadSize());
+      if (result != returnvalue::OK) {
+        return result;
+      }
+      specialComHelperExecuting = true;
      return EXECUTION_FINISHED;
    }
    case (mpsoc::OBSW_RESET_SEQ_COUNT): {
@ -150,10 +177,13 @@ ReturnValue_t PlocMPSoCHandler::executeAction(ActionId_t actionId, MessageQueueI
    default:
      break;
  }
+  // For longer commands, do not set these.
+  commandIsPending = true;
+  cmdCountdown.resetTimer();
  return DeviceHandlerBase::executeAction(actionId, commandedBy, data, size);
 }

-void PlocMPSoCHandler::doStartUp() {
+void PlocMpsocHandler::doStartUp() {
  if (startupState == StartupState::IDLE) {
    startupState = StartupState::HW_INIT;
  }
@ -197,48 +227,50 @@ void PlocMPSoCHandler::doStartUp() {
  }
 }

-void PlocMPSoCHandler::doShutDown() {
+void PlocMpsocHandler::doShutDown() {
 #ifdef XIPHOS_Q7S
 #if not OBSW_MPSOC_JTAG_BOOT == 1
-  switch (powerState) {
-    case PowerState::ON:
-      uartIsolatorSwitch.pullLow();
-      commandActionHelper.commandAction(supervisorHandler, supv::SHUTDOWN_MPSOC);
-      powerState = PowerState::SHUTDOWN;
-      break;
-    case PowerState::OFF:
-      sequenceCount = 0;
-      hkReport.setReportingEnabled(false);
-      setMode(_MODE_POWER_DOWN);
-      break;
-    default:
-      break;
+  if (powerState == PowerState::ON) {
+    uartIsolatorSwitch.pullLow();
+    commandActionHelper.commandAction(supervisorHandler, supv::SHUTDOWN_MPSOC);
+    powerState = PowerState::SHUTDOWN;
+    return;
+  } else if (powerState == PowerState::SHUTDOWN) {
+    // Wait till power state is OFF.
+    return;
  }
 #else
-  sequenceCount = 0;
  uartIsolatorSwitch.pullLow();
-  hkReport.setReportingEnabled(false);
-  setMode(_MODE_POWER_DOWN);
  powerState = PowerState::OFF;
 #endif
 #endif
+
+  if (specialComHelper != nullptr) {
+    specialComHelper->stopProcess();
+  }
+  hkReport.setReportingEnabled(false);
+  setMode(_MODE_POWER_DOWN);
+  commandIsPending = false;
+  sequenceCount = 0;
+  specialComHelperExecuting = false;
  startupState = StartupState::IDLE;
 }

-ReturnValue_t PlocMPSoCHandler::buildNormalDeviceCommand(DeviceCommandId_t* id) {
-  if (not commandIsPending) {
+ReturnValue_t PlocMpsocHandler::buildNormalDeviceCommand(DeviceCommandId_t* id) {
+  if (not commandIsPending and not specialComHelperExecuting) {
    *id = mpsoc::TC_GET_HK_REPORT;
    commandIsPending = true;
+    cmdCountdown.resetTimer();
    return buildCommandFromCommand(*id, nullptr, 0);
  }
  return NOTHING_TO_SEND;
 }

-ReturnValue_t PlocMPSoCHandler::buildTransitionDeviceCommand(DeviceCommandId_t* id) {
+ReturnValue_t PlocMpsocHandler::buildTransitionDeviceCommand(DeviceCommandId_t* id) {
  return NOTHING_TO_SEND;
 }

-ReturnValue_t PlocMPSoCHandler::buildCommandFromCommand(DeviceCommandId_t deviceCommand,
+ReturnValue_t PlocMpsocHandler::buildCommandFromCommand(DeviceCommandId_t deviceCommand,
                                                        const uint8_t* commandData,
                                                        size_t commandDataLen) {
  spParams.buf = commandBuffer;
@ -329,10 +361,12 @@ ReturnValue_t PlocMPSoCHandler::buildCommandFromCommand(DeviceCommandId_t device
  return result;
 }

-void PlocMPSoCHandler::fillCommandAndReplyMap() {
+void PlocMpsocHandler::fillCommandAndReplyMap() {
  this->insertInCommandMap(mpsoc::TC_MEM_WRITE);
  this->insertInCommandMap(mpsoc::TC_MEM_READ);
  this->insertInCommandMap(mpsoc::TC_FLASHDELETE);
+  insertInCommandMap(mpsoc::TC_FLASH_WRITE_FULL_FILE);
+  insertInCommandMap(mpsoc::TC_FLASH_READ_FULL_FILE);
  this->insertInCommandMap(mpsoc::TC_REPLAY_START);
  this->insertInCommandMap(mpsoc::TC_REPLAY_STOP);
  this->insertInCommandMap(mpsoc::TC_DOWNLINK_PWR_ON);
@ -357,7 +391,7 @@ void PlocMPSoCHandler::fillCommandAndReplyMap() {
  this->insertInReplyMap(mpsoc::TM_FLASH_DIRECTORY_CONTENT, 2, nullptr, mpsoc::SP_MAX_SIZE);
 }

-ReturnValue_t PlocMPSoCHandler::scanForReply(const uint8_t* start, size_t remainingSize,
+ReturnValue_t PlocMpsocHandler::scanForReply(const uint8_t* start, size_t remainingSize,
                                             DeviceCommandId_t* foundId, size_t* foundLen) {
  ReturnValue_t result = returnvalue::OK;

@ -424,10 +458,11 @@ ReturnValue_t PlocMPSoCHandler::scanForReply(const uint8_t* start, size_t remain
  }
  // This sequence count ping pong does not make any sense but it is how the MPSoC expects it.
  sequenceCount++;
+
  return result;
 }

-ReturnValue_t PlocMPSoCHandler::interpretDeviceReply(DeviceCommandId_t id, const uint8_t* packet) {
+ReturnValue_t PlocMpsocHandler::interpretDeviceReply(DeviceCommandId_t id, const uint8_t* packet) {
  ReturnValue_t result = returnvalue::OK;

  switch (id) {
@ -472,14 +507,14 @@ ReturnValue_t PlocMPSoCHandler::interpretDeviceReply(DeviceCommandId_t id, const
  return result;
 }

-void PlocMPSoCHandler::setNormalDatapoolEntriesInvalid() {
+void PlocMpsocHandler::setNormalDatapoolEntriesInvalid() {
  PoolReadGuard pg(&hkReport);
  hkReport.setValidity(false, true);
 }

-uint32_t PlocMPSoCHandler::getTransitionDelayMs(Mode_t modeFrom, Mode_t modeTo) { return 10000; }
+uint32_t PlocMpsocHandler::getTransitionDelayMs(Mode_t modeFrom, Mode_t modeTo) { return 10000; }

-ReturnValue_t PlocMPSoCHandler::initializeLocalDataPool(localpool::DataPool& localDataPoolMap,
+ReturnValue_t PlocMpsocHandler::initializeLocalDataPool(localpool::DataPool& localDataPoolMap,
                                                        LocalDataPoolManager& poolManager) {
  localDataPoolMap.emplace(mpsoc::poolid::STATUS, &peStatus);
  localDataPoolMap.emplace(mpsoc::poolid::MODE, &peMode);
@ -520,11 +555,11 @@ ReturnValue_t PlocMPSoCHandler::initializeLocalDataPool(localpool::DataPool& loc
  return returnvalue::OK;
 }

-void PlocMPSoCHandler::handleEvent(EventMessage* eventMessage) {
+void PlocMpsocHandler::handleEvent(EventMessage* eventMessage) {
  object_id_t objectId = eventMessage->getReporter();
  switch (objectId) {
    case objects::PLOC_MPSOC_HELPER: {
-      plocMPSoCHelperExecuting = false;
+      specialComHelperExecuting = false;
      break;
    }
    default:
@ -533,219 +568,194 @@ void PlocMPSoCHandler::handleEvent(EventMessage* eventMessage) {
  }
 }

-ReturnValue_t PlocMPSoCHandler::prepareTcMemWrite(const uint8_t* commandData,
+ReturnValue_t PlocMpsocHandler::prepareTcMemWrite(const uint8_t* commandData,
                                                  size_t commandDataLen) {
  ReturnValue_t result = returnvalue::OK;
  mpsoc::TcMemWrite tcMemWrite(spParams, sequenceCount);
-  result = tcMemWrite.buildPacket(commandData, commandDataLen);
+  result = tcMemWrite.setPayload(commandData, commandDataLen);
  if (result != returnvalue::OK) {
    return result;
  }
-  finishTcPrep(tcMemWrite.getFullPacketLen());
+  finishTcPrep(tcMemWrite);
  return returnvalue::OK;
 }

-ReturnValue_t PlocMPSoCHandler::prepareTcMemRead(const uint8_t* commandData,
+ReturnValue_t PlocMpsocHandler::prepareTcMemRead(const uint8_t* commandData,
                                                 size_t commandDataLen) {
  ReturnValue_t result = returnvalue::OK;
  mpsoc::TcMemRead tcMemRead(spParams, sequenceCount);
-  result = tcMemRead.buildPacket(commandData, commandDataLen);
+  result = tcMemRead.setPayload(commandData, commandDataLen);
  if (result != returnvalue::OK) {
    return result;
  }
-  finishTcPrep(tcMemRead.getFullPacketLen());
+  finishTcPrep(tcMemRead);
  tmMemReadReport.rememberRequestedSize = tcMemRead.getMemLen() * 4 + TmMemReadReport::FIX_SIZE;
  return returnvalue::OK;
 }

-ReturnValue_t PlocMPSoCHandler::prepareTcFlashDelete(const uint8_t* commandData,
+ReturnValue_t PlocMpsocHandler::prepareTcFlashDelete(const uint8_t* commandData,
                                                     size_t commandDataLen) {
  if (commandDataLen > config::MAX_PATH_SIZE + config::MAX_FILENAME_SIZE) {
    return MPSoCReturnValuesIF::NAME_TOO_LONG;
  }
  ReturnValue_t result = returnvalue::OK;
  mpsoc::TcFlashDelete tcFlashDelete(spParams, sequenceCount);
-  result = tcFlashDelete.buildPacket(
-      std::string(reinterpret_cast<const char*>(commandData), commandDataLen));
+  std::string filename = std::string(reinterpret_cast<const char*>(commandData), commandDataLen);
+  result = tcFlashDelete.setPayload(filename);
  if (result != returnvalue::OK) {
    return result;
  }
-  finishTcPrep(tcFlashDelete.getFullPacketLen());
+  finishTcPrep(tcFlashDelete);
  return returnvalue::OK;
 }

-ReturnValue_t PlocMPSoCHandler::prepareTcReplayStart(const uint8_t* commandData,
+ReturnValue_t PlocMpsocHandler::prepareTcReplayStart(const uint8_t* commandData,
                                                     size_t commandDataLen) {
  ReturnValue_t result = returnvalue::OK;
  mpsoc::TcReplayStart tcReplayStart(spParams, sequenceCount);
-  result = tcReplayStart.buildPacket(commandData, commandDataLen);
+  result = tcReplayStart.setPayload(commandData, commandDataLen);
  if (result != returnvalue::OK) {
    return result;
  }
-  finishTcPrep(tcReplayStart.getFullPacketLen());
+  finishTcPrep(tcReplayStart);
  return returnvalue::OK;
 }

-ReturnValue_t PlocMPSoCHandler::prepareTcReplayStop() {
-  ReturnValue_t result = returnvalue::OK;
+ReturnValue_t PlocMpsocHandler::prepareTcReplayStop() {
  mpsoc::TcReplayStop tcReplayStop(spParams, sequenceCount);
-  result = tcReplayStop.buildPacket();
-  if (result != returnvalue::OK) {
-    return result;
-  }
-  finishTcPrep(tcReplayStop.getFullPacketLen());
+  finishTcPrep(tcReplayStop);
  return returnvalue::OK;
 }

-ReturnValue_t PlocMPSoCHandler::prepareTcDownlinkPwrOn(const uint8_t* commandData,
+ReturnValue_t PlocMpsocHandler::prepareTcDownlinkPwrOn(const uint8_t* commandData,
                                                       size_t commandDataLen) {
  ReturnValue_t result = returnvalue::OK;
  mpsoc::TcDownlinkPwrOn tcDownlinkPwrOn(spParams, sequenceCount);
-  result = tcDownlinkPwrOn.buildPacket(commandData, commandDataLen);
+  result = tcDownlinkPwrOn.setPayload(commandData, commandDataLen);
  if (result != returnvalue::OK) {
    return result;
  }
-  finishTcPrep(tcDownlinkPwrOn.getFullPacketLen());
+  finishTcPrep(tcDownlinkPwrOn);
  return returnvalue::OK;
 }

-ReturnValue_t PlocMPSoCHandler::prepareTcDownlinkPwrOff() {
-  ReturnValue_t result = returnvalue::OK;
+ReturnValue_t PlocMpsocHandler::prepareTcDownlinkPwrOff() {
  mpsoc::TcDownlinkPwrOff tcDownlinkPwrOff(spParams, sequenceCount);
-  result = tcDownlinkPwrOff.buildPacket();
-  if (result != returnvalue::OK) {
-    return result;
-  }
-  finishTcPrep(tcDownlinkPwrOff.getFullPacketLen());
+  finishTcPrep(tcDownlinkPwrOff);
  return returnvalue::OK;
 }

-ReturnValue_t PlocMPSoCHandler::prepareTcGetHkReport() {
+ReturnValue_t PlocMpsocHandler::prepareTcGetHkReport() {
  mpsoc::TcGetHkReport tcGetHkReport(spParams, sequenceCount);
-  ReturnValue_t result = tcGetHkReport.buildPacket();
-  if (result != returnvalue::OK) {
-    return result;
-  }
-  finishTcPrep(tcGetHkReport.getFullPacketLen());
+  finishTcPrep(tcGetHkReport);
  return returnvalue::OK;
 }

-ReturnValue_t PlocMPSoCHandler::prepareTcReplayWriteSequence(const uint8_t* commandData,
+ReturnValue_t PlocMpsocHandler::prepareTcReplayWriteSequence(const uint8_t* commandData,
                                                             size_t commandDataLen) {
-  ReturnValue_t result = returnvalue::OK;
  mpsoc::TcReplayWriteSeq tcReplayWriteSeq(spParams, sequenceCount);
-  result = tcReplayWriteSeq.buildPacket(commandData, commandDataLen);
+  ReturnValue_t result = tcReplayWriteSeq.setPayload(commandData, commandDataLen);
  if (result != returnvalue::OK) {
    return result;
  }
-  finishTcPrep(tcReplayWriteSeq.getFullPacketLen());
+  finishTcPrep(tcReplayWriteSeq);
  return returnvalue::OK;
 }

-ReturnValue_t PlocMPSoCHandler::prepareTcModeReplay() {
-  ReturnValue_t result = returnvalue::OK;
+ReturnValue_t PlocMpsocHandler::prepareTcModeReplay() {
  mpsoc::TcModeReplay tcModeReplay(spParams, sequenceCount);
-  result = tcModeReplay.buildPacket();
-  if (result != returnvalue::OK) {
-    return result;
-  }
-  finishTcPrep(tcModeReplay.getFullPacketLen());
+  finishTcPrep(tcModeReplay);
  return returnvalue::OK;
 }

-ReturnValue_t PlocMPSoCHandler::prepareTcModeIdle() {
-  ReturnValue_t result = returnvalue::OK;
+ReturnValue_t PlocMpsocHandler::prepareTcModeIdle() {
  mpsoc::TcModeIdle tcModeIdle(spParams, sequenceCount);
-  result = tcModeIdle.buildPacket();
-  if (result != returnvalue::OK) {
-    return result;
-  }
-  finishTcPrep(tcModeIdle.getFullPacketLen());
+  finishTcPrep(tcModeIdle);
  return returnvalue::OK;
 }

-ReturnValue_t PlocMPSoCHandler::prepareTcCamCmdSend(const uint8_t* commandData,
+ReturnValue_t PlocMpsocHandler::prepareTcCamCmdSend(const uint8_t* commandData,
                                                    size_t commandDataLen) {
-  ReturnValue_t result = returnvalue::OK;
  mpsoc::TcCamcmdSend tcCamCmdSend(spParams, sequenceCount);
-  result = tcCamCmdSend.buildPacket(commandData, commandDataLen);
+  ReturnValue_t result = tcCamCmdSend.setPayload(commandData, commandDataLen);
  if (result != returnvalue::OK) {
    return result;
  }
-  finishTcPrep(tcCamCmdSend.getFullPacketLen());
+  finishTcPrep(tcCamCmdSend);
  nextReplyId = mpsoc::TM_CAM_CMD_RPT;
  return returnvalue::OK;
 }

-ReturnValue_t PlocMPSoCHandler::prepareTcCamTakePic(const uint8_t* commandData,
+ReturnValue_t PlocMpsocHandler::prepareTcCamTakePic(const uint8_t* commandData,
                                                    size_t commandDataLen) {
  mpsoc::TcCamTakePic tcCamTakePic(spParams, sequenceCount);
-  ReturnValue_t result = tcCamTakePic.buildPacket(commandData, commandDataLen);
+  ReturnValue_t result = tcCamTakePic.setPayload(commandData, commandDataLen);
  if (result != returnvalue::OK) {
    return result;
  }
-  finishTcPrep(tcCamTakePic.getFullPacketLen());
+  finishTcPrep(tcCamTakePic);
  return returnvalue::OK;
 }

-ReturnValue_t PlocMPSoCHandler::prepareTcSimplexSendFile(const uint8_t* commandData,
+ReturnValue_t PlocMpsocHandler::prepareTcSimplexSendFile(const uint8_t* commandData,
                                                         size_t commandDataLen) {
  mpsoc::TcSimplexSendFile tcSimplexSendFile(spParams, sequenceCount);
-  ReturnValue_t result = tcSimplexSendFile.buildPacket(commandData, commandDataLen);
+  ReturnValue_t result = tcSimplexSendFile.setPayload(commandData, commandDataLen);
  if (result != returnvalue::OK) {
    return result;
  }
-  finishTcPrep(tcSimplexSendFile.getFullPacketLen());
+  finishTcPrep(tcSimplexSendFile);
  return returnvalue::OK;
 }

-ReturnValue_t PlocMPSoCHandler::prepareTcGetDirContent(const uint8_t* commandData,
+ReturnValue_t PlocMpsocHandler::prepareTcGetDirContent(const uint8_t* commandData,
                                                       size_t commandDataLen) {
  mpsoc::TcGetDirContent tcGetDirContent(spParams, sequenceCount);
-  ReturnValue_t result = tcGetDirContent.buildPacket(commandData, commandDataLen);
+  ReturnValue_t result = tcGetDirContent.setPayload(commandData, commandDataLen);
  if (result != returnvalue::OK) {
    return result;
  }
-  finishTcPrep(tcGetDirContent.getFullPacketLen());
+  finishTcPrep(tcGetDirContent);
  return returnvalue::OK;
 }

-ReturnValue_t PlocMPSoCHandler::prepareTcDownlinkDataModulate(const uint8_t* commandData,
+ReturnValue_t PlocMpsocHandler::prepareTcDownlinkDataModulate(const uint8_t* commandData,
                                                              size_t commandDataLen) {
  mpsoc::TcDownlinkDataModulate tcDownlinkDataModulate(spParams, sequenceCount);
-  ReturnValue_t result = tcDownlinkDataModulate.buildPacket(commandData, commandDataLen);
+  ReturnValue_t result = tcDownlinkDataModulate.setPayload(commandData, commandDataLen);
  if (result != returnvalue::OK) {
    return result;
  }
-  finishTcPrep(tcDownlinkDataModulate.getFullPacketLen());
+  finishTcPrep(tcDownlinkDataModulate);
  return returnvalue::OK;
 }

-ReturnValue_t PlocMPSoCHandler::prepareTcModeSnapshot() {
+ReturnValue_t PlocMpsocHandler::prepareTcModeSnapshot() {
  mpsoc::TcModeSnapshot tcModeSnapshot(spParams, sequenceCount);
-  ReturnValue_t result = tcModeSnapshot.buildPacket();
-  if (result != returnvalue::OK) {
-    return result;
-  }
-  finishTcPrep(tcModeSnapshot.getFullPacketLen());
+  finishTcPrep(tcModeSnapshot);
  return returnvalue::OK;
 }

-void PlocMPSoCHandler::finishTcPrep(size_t packetLen) {
+ReturnValue_t PlocMpsocHandler::finishTcPrep(mpsoc::TcBase& tcBase) {
  nextReplyId = mpsoc::ACK_REPORT;
+  ReturnValue_t result = tcBase.finishPacket();
+  if (result != returnvalue::OK) {
+    return result;
+  }
  rawPacket = commandBuffer;
-  rawPacketLen = packetLen;
+  rawPacketLen = tcBase.getFullPacketLen();
  sequenceCount++;
+  return returnvalue::OK;
 }

-ReturnValue_t PlocMPSoCHandler::verifyPacket(const uint8_t* start, size_t foundLen) {
+ReturnValue_t PlocMpsocHandler::verifyPacket(const uint8_t* start, size_t foundLen) {
  if (CRC::crc16ccitt(start, foundLen) != 0) {
    return MPSoCReturnValuesIF::CRC_FAILURE;
  }
  return returnvalue::OK;
 }

-ReturnValue_t PlocMPSoCHandler::handleAckReport(const uint8_t* data) {
+ReturnValue_t PlocMpsocHandler::handleAckReport(const uint8_t* data) {
  ReturnValue_t result = returnvalue::OK;

  result = verifyPacket(data, mpsoc::SIZE_ACK_REPORT);
@ -763,10 +773,9 @@ ReturnValue_t PlocMPSoCHandler::handleAckReport(const uint8_t* data) {

  switch (apid) {
    case mpsoc::apid::ACK_FAILURE: {
-      sif::debug << "PlocMPSoCHandler::handleAckReport: Received Ack failure report" << std::endl;
      DeviceCommandId_t commandId = getPendingCommand();
-      uint16_t status = getStatus(data);
-      printStatus(data);
+      uint16_t status = mpsoc::getStatusFromRawData(data);
+      sif::warning << "MPSoC ACK Failure: " << mpsoc::getStatusString(status) << std::endl;
      if (commandId != DeviceHandlerIF::NO_COMMAND_ID) {
        triggerEvent(ACK_FAILURE, commandId, status);
      }
@ -790,7 +799,7 @@ ReturnValue_t PlocMPSoCHandler::handleAckReport(const uint8_t* data) {
  return result;
 }

-ReturnValue_t PlocMPSoCHandler::handleExecutionReport(const uint8_t* data) {
+ReturnValue_t PlocMpsocHandler::handleExecutionReport(const uint8_t* data) {
  ReturnValue_t result = returnvalue::OK;

  result = verifyPacket(data, mpsoc::SIZE_EXE_REPORT);
@ -802,40 +811,22 @@ ReturnValue_t PlocMPSoCHandler::handleExecutionReport(const uint8_t* data) {

  uint16_t apid = (*(data) << 8 | *(data + 1)) & APID_MASK;

-  auto cmdDoneHandler = [&](bool success) {
-    if (normalCmdPending) {
-      normalCmdPending = false;
-    }
-    commandIsPending = false;
-    auto commandIter = deviceCommandMap.find(getPendingCommand());
-    if (commandIter != deviceCommandMap.end()) {
-      commandIter->second.isExecuting = false;
-      if (commandIter->second.sendReplyTo != MessageQueueIF::NO_QUEUE) {
-        actionHelper.finish(success, commandIter->second.sendReplyTo, getPendingCommand(), result);
-      }
-    }
-    disableAllReplies();
-  };
  switch (apid) {
    case (mpsoc::apid::EXE_SUCCESS): {
-      cmdDoneHandler(true);
+      cmdDoneHandler(true, result);
      break;
    }
    case (mpsoc::apid::EXE_FAILURE): {
-      // TODO: Interpretation of status field in execution report
-      sif::warning << "PlocMPSoCHandler::handleExecutionReport: Received execution failure report"
-                   << std::endl;
      DeviceCommandId_t commandId = getPendingCommand();
-      if (commandId != DeviceHandlerIF::NO_COMMAND_ID) {
-        uint16_t status = getStatus(data);
-        triggerEvent(EXE_FAILURE, commandId, status);
-      } else {
+      if (commandId == DeviceHandlerIF::NO_COMMAND_ID) {
        sif::debug << "PlocMPSoCHandler::handleExecutionReport: Unknown command id" << std::endl;
      }
-      printStatus(data);
+      uint16_t status = mpsoc::getStatusFromRawData(data);
+      sif::warning << "MPSoC EXE Failure: " << mpsoc::getStatusString(status) << std::endl;
+      triggerEvent(EXE_FAILURE, commandId, status);
      sendFailureReport(mpsoc::EXE_REPORT, MPSoCReturnValuesIF::RECEIVED_EXE_FAILURE);
      result = IGNORE_REPLY_DATA;
-      cmdDoneHandler(false);
+      cmdDoneHandler(false, MPSoCReturnValuesIF::RECEIVED_EXE_FAILURE);
      break;
    }
    default: {
@ -848,7 +839,7 @@ ReturnValue_t PlocMPSoCHandler::handleExecutionReport(const uint8_t* data) {
  return result;
 }

-ReturnValue_t PlocMPSoCHandler::handleMemoryReadReport(const uint8_t* data) {
+ReturnValue_t PlocMpsocHandler::handleMemoryReadReport(const uint8_t* data) {
  ReturnValue_t result = returnvalue::OK;
  result = verifyPacket(data, tmMemReadReport.rememberRequestedSize);
  if (result == MPSoCReturnValuesIF::CRC_FAILURE) {
@ -864,7 +855,7 @@ ReturnValue_t PlocMPSoCHandler::handleMemoryReadReport(const uint8_t* data) {
  return result;
 }

-ReturnValue_t PlocMPSoCHandler::handleGetHkReport(const uint8_t* data) {
+ReturnValue_t PlocMpsocHandler::handleGetHkReport(const uint8_t* data) {
  ReturnValue_t result = verifyPacket(data, foundPacketLen);
  if (result != returnvalue::OK) {
    return result;
@ -1042,7 +1033,7 @@ ReturnValue_t PlocMPSoCHandler::handleGetHkReport(const uint8_t* data) {
  return returnvalue::OK;
 }

-ReturnValue_t PlocMPSoCHandler::handleCamCmdRpt(const uint8_t* data) {
+ReturnValue_t PlocMpsocHandler::handleCamCmdRpt(const uint8_t* data) {
  ReturnValue_t result = verifyPacket(data, foundPacketLen);
  if (result == MPSoCReturnValuesIF::CRC_FAILURE) {
    sif::warning << "PlocMPSoCHandler::handleCamCmdRpt: CRC failure" << std::endl;
@ -1062,7 +1053,7 @@ ReturnValue_t PlocMPSoCHandler::handleCamCmdRpt(const uint8_t* data) {
  return result;
 }

-ReturnValue_t PlocMPSoCHandler::enableReplyInReplyMap(DeviceCommandMap::iterator command,
+ReturnValue_t PlocMpsocHandler::enableReplyInReplyMap(DeviceCommandMap::iterator command,
                                                      uint8_t expectedReplies, bool useAlternateId,
                                                      DeviceCommandId_t alternateReplyID) {
  ReturnValue_t result = returnvalue::OK;
@ -1178,7 +1169,7 @@ ReturnValue_t PlocMPSoCHandler::enableReplyInReplyMap(DeviceCommandMap::iterator
  return returnvalue::OK;
 }

-void PlocMPSoCHandler::setNextReplyId() {
+void PlocMpsocHandler::setNextReplyId() {
  switch (getPendingCommand()) {
    case mpsoc::TC_MEM_READ:
      nextReplyId = mpsoc::TM_MEMORY_READ_REPORT;
@ -1198,7 +1189,7 @@ void PlocMPSoCHandler::setNextReplyId() {
  }
 }

-size_t PlocMPSoCHandler::getNextReplyLength(DeviceCommandId_t commandId) {
+size_t PlocMpsocHandler::getNextReplyLength(DeviceCommandId_t commandId) {
  size_t replyLen = 0;

  if (nextReplyId == mpsoc::NONE) {
@ -1239,19 +1230,19 @@ size_t PlocMPSoCHandler::getNextReplyLength(DeviceCommandId_t commandId) {
  return replyLen;
 }

-ReturnValue_t PlocMPSoCHandler::doSendReadHook() {
+ReturnValue_t PlocMpsocHandler::doSendReadHook() {
  // Prevent DHB from polling UART during commands executed by the mpsoc helper task
-  if (plocMPSoCHelperExecuting) {
+  if (specialComHelperExecuting) {
    return returnvalue::FAILED;
  }
  return returnvalue::OK;
 }

-MessageQueueIF* PlocMPSoCHandler::getCommandQueuePtr() { return commandActionHelperQueue; }
+MessageQueueIF* PlocMpsocHandler::getCommandQueuePtr() { return commandActionHelperQueue; }

-void PlocMPSoCHandler::stepSuccessfulReceived(ActionId_t actionId, uint8_t step) { return; }
+void PlocMpsocHandler::stepSuccessfulReceived(ActionId_t actionId, uint8_t step) { return; }

-void PlocMPSoCHandler::stepFailedReceived(ActionId_t actionId, uint8_t step,
+void PlocMpsocHandler::stepFailedReceived(ActionId_t actionId, uint8_t step,
                                          ReturnValue_t returnCode) {
  switch (actionId) {
    case supv::START_MPSOC: {
@ -1274,11 +1265,11 @@ void PlocMPSoCHandler::stepFailedReceived(ActionId_t actionId, uint8_t step,
  }
 }

-void PlocMPSoCHandler::dataReceived(ActionId_t actionId, const uint8_t* data, uint32_t size) {
+void PlocMpsocHandler::dataReceived(ActionId_t actionId, const uint8_t* data, uint32_t size) {
  return;
 }

-void PlocMPSoCHandler::completionSuccessfulReceived(ActionId_t actionId) {
+void PlocMpsocHandler::completionSuccessfulReceived(ActionId_t actionId) {
  if (actionId != supv::EXE_REPORT) {
    sif::debug << "PlocMPSoCHandler::completionSuccessfulReceived: Did not expect this action "
               << "ID" << std::endl;
@ -1299,11 +1290,11 @@ void PlocMPSoCHandler::completionSuccessfulReceived(ActionId_t actionId) {
  }
 }

-void PlocMPSoCHandler::completionFailedReceived(ActionId_t actionId, ReturnValue_t returnCode) {
+void PlocMpsocHandler::completionFailedReceived(ActionId_t actionId, ReturnValue_t returnCode) {
  handleActionCommandFailure(actionId);
 }

-void PlocMPSoCHandler::handleDeviceTm(const uint8_t* data, size_t dataSize,
+void PlocMpsocHandler::handleDeviceTm(const uint8_t* data, size_t dataSize,
                                      DeviceCommandId_t replyId) {
  ReturnValue_t result = returnvalue::OK;

@ -1329,7 +1320,7 @@ void PlocMPSoCHandler::handleDeviceTm(const uint8_t* data, size_t dataSize,
  }
 }

-void PlocMPSoCHandler::disableAllReplies() {
+void PlocMpsocHandler::disableAllReplies() {
  using namespace mpsoc;
  DeviceReplyMap::iterator iter;

@ -1392,7 +1383,7 @@ void PlocMPSoCHandler::disableAllReplies() {
  nextReplyId = mpsoc::NONE;
 }

-void PlocMPSoCHandler::sendFailureReport(DeviceCommandId_t replyId, ReturnValue_t status) {
+void PlocMpsocHandler::sendFailureReport(DeviceCommandId_t replyId, ReturnValue_t status) {
  DeviceReplyIter iter = deviceReplyMap.find(replyId);
  if (iter == deviceReplyMap.end()) {
    sif::debug << "PlocMPSoCHandler::sendFailureReport: Reply not in reply map" << std::endl;
@ -1409,7 +1400,7 @@ void PlocMPSoCHandler::sendFailureReport(DeviceCommandId_t replyId, ReturnValue_
  info->isExecuting = false;
 }

-void PlocMPSoCHandler::disableExeReportReply() {
+void PlocMpsocHandler::disableExeReportReply() {
  DeviceReplyIter iter = deviceReplyMap.find(mpsoc::EXE_REPORT);
  DeviceReplyInfo* info = &(iter->second);
  info->delayCycles = 0;
@ -1418,16 +1409,7 @@ void PlocMPSoCHandler::disableExeReportReply() {
  info->command->second.expectedReplies = 0;
 }

-void PlocMPSoCHandler::printStatus(const uint8_t* data) {
-  uint16_t status = (*(data + STATUS_OFFSET) << 8) | *(data + STATUS_OFFSET + 1);
-  sif::info << "Verification report status: " << getStatusString(status) << std::endl;
-}
-
-uint16_t PlocMPSoCHandler::getStatus(const uint8_t* data) {
-  return (*(data + STATUS_OFFSET) << 8) | *(data + STATUS_OFFSET + 1);
-}
-
-void PlocMPSoCHandler::handleActionCommandFailure(ActionId_t actionId) {
+void PlocMpsocHandler::handleActionCommandFailure(ActionId_t actionId) {
  switch (actionId) {
    case supv::ACK_REPORT:
    case supv::EXE_REPORT:
@ -1460,96 +1442,27 @@ void PlocMPSoCHandler::handleActionCommandFailure(ActionId_t actionId) {
  return;
 }

-LocalPoolDataSetBase* PlocMPSoCHandler::getDataSetHandle(sid_t sid) {
+LocalPoolDataSetBase* PlocMpsocHandler::getDataSetHandle(sid_t sid) {
  if (sid == hkReport.getSid()) {
    return &hkReport;
  }
  return nullptr;
 }

-std::string PlocMPSoCHandler::getStatusString(uint16_t status) {
-  switch (status) {
-    case (mpsoc::status_code::UNKNOWN_APID): {
-      return "Unknown APID";
-      break;
-    }
-    case (mpsoc::status_code::INCORRECT_LENGTH): {
-      return "Incorrect length";
-      break;
-    }
-    case (mpsoc::status_code::INCORRECT_CRC): {
-      return "Incorrect crc";
-      break;
-    }
-    case (mpsoc::status_code::INCORRECT_PKT_SEQ_CNT): {
-      return "Incorrect packet sequence count";
-      break;
-    }
-    case (mpsoc::status_code::TC_NOT_ALLOWED_IN_MODE): {
-      return "TC not allowed in this mode";
-      break;
-    }
-    case (mpsoc::status_code::TC_EXEUTION_DISABLED): {
-      return "TC execution disabled";
-      break;
-    }
-    case (mpsoc::status_code::FLASH_MOUNT_FAILED): {
-      return "Flash mount failed";
-      break;
-    }
-    case (mpsoc::status_code::FLASH_FILE_ALREADY_CLOSED): {
-      return "Flash file already closed";
-      break;
-    }
-    case (mpsoc::status_code::FLASH_FILE_OPEN_FAILED): {
-      return "Flash file open failed";
-      break;
-    }
-    case (mpsoc::status_code::FLASH_FILE_NOT_OPEN): {
-      return "Flash file not open";
-      break;
-    }
-    case (mpsoc::status_code::FLASH_UNMOUNT_FAILED): {
-      return "Flash unmount failed";
-      break;
-    }
-    case (mpsoc::status_code::HEAP_ALLOCATION_FAILED): {
-      return "Heap allocation failed";
-      break;
-    }
-    case (mpsoc::status_code::INVALID_PARAMETER): {
-      return "Invalid parameter";
-      break;
-    }
-    case (mpsoc::status_code::NOT_INITIALIZED): {
-      return "Not initialized";
-      break;
-    }
-    case (mpsoc::status_code::REBOOT_IMMINENT): {
-      return "Reboot imminent";
-      break;
-    }
-    case (mpsoc::status_code::CORRUPT_DATA): {
-      return "Corrupt data";
-      break;
-    }
-    case (mpsoc::status_code::FLASH_CORRECTABLE_MISMATCH): {
-      return "Flash correctable mismatch";
-      break;
-    }
-    case (mpsoc::status_code::FLASH_UNCORRECTABLE_MISMATCH): {
-      return "Flash uncorrectable mismatch";
-      break;
-    }
-    case (mpsoc::status_code::DEFAULT_ERROR_CODE): {
-      return "Default error code";
-      break;
-    }
-    default:
-      std::stringstream ss;
-      ss << "0x" << std::hex << status;
-      return ss.str();
-      break;
-  }
-  return "";
+bool PlocMpsocHandler::dontCheckQueue() {
+  // The TC and TMs need to be handled strictly sequentially, so while a command is pending,
+  // more specifically while replies are still expected, do not check the queue.s
+  return commandIsPending;
+}
+
+void PlocMpsocHandler::cmdDoneHandler(bool success, ReturnValue_t result) {
+  commandIsPending = false;
+  auto commandIter = deviceCommandMap.find(getPendingCommand());
+  if (commandIter != deviceCommandMap.end()) {
+    commandIter->second.isExecuting = false;
+    if (commandIter->second.sendReplyTo != MessageQueueIF::NO_QUEUE) {
+      actionHelper.finish(success, commandIter->second.sendReplyTo, getPendingCommand(), result);
+    }
+  }
+  disableAllReplies();
 }
--- a/linux/payload/PlocMpsocHandler.h
+++ b/linux/payload/PlocMpsocHandler.h
@ -1,9 +1,9 @@
 #ifndef BSP_Q7S_DEVICES_PLOC_PLOCMPSOCHANDLER_H_
 #define BSP_Q7S_DEVICES_PLOC_PLOCMPSOCHANDLER_H_

-#include <linux/payload/PlocMpsocHelper.h>
+#include <linux/payload/PlocMpsocSpecialComHelper.h>
 #include <linux/payload/mpsocRetvals.h>
-#include <linux/payload/plocMpscoDefs.h>
+#include <linux/payload/plocMpsocHelpers.h>
 #include <linux/payload/plocSupvDefs.h>

 #include <string>
@ -28,9 +28,10 @@
 * @note The sequence count in the space packets must be incremented with each received and sent
 *       packet otherwise the MPSoC will reply with an acknowledgment failure report.
 *
- * @author	J. Meier
+ * NOTE: This is not an example for a good device handler, DO NOT USE THIS AS A REFERENCE HANDLER.
+ * @author	J. Meier, R. Mueller
 */
-class PlocMPSoCHandler : public DeviceHandlerBase, public CommandsActionsIF {
+class PlocMpsocHandler : public DeviceHandlerBase, public CommandsActionsIF {
 public:
  /**
   * @brief Constructor
@ -43,10 +44,10 @@ class PlocMPSoCHandler : public DeviceHandlerBase, public CommandsActionsIF {
   *                            module in the programmable logic
   * @param supervisorHandler   Object ID of the supervisor handler
   */
-  PlocMPSoCHandler(object_id_t objectId, object_id_t uartComIFid, CookieIF* comCookie,
-                   PlocMPSoCHelper* plocMPSoCHelper, Gpio uartIsolatorSwitch,
+  PlocMpsocHandler(object_id_t objectId, object_id_t uartComIFid, CookieIF* comCookie,
+                   PlocMpsocSpecialComHelper* plocMPSoCHelper, Gpio uartIsolatorSwitch,
                   object_id_t supervisorHandler);
-  virtual ~PlocMPSoCHandler();
+  virtual ~PlocMpsocHandler();
  virtual ReturnValue_t initialize() override;
  ReturnValue_t executeAction(ActionId_t actionId, MessageQueueId_t commandedBy,
                              const uint8_t* data, size_t size) override;
@ -79,6 +80,7 @@ class PlocMPSoCHandler : public DeviceHandlerBase, public CommandsActionsIF {
  size_t getNextReplyLength(DeviceCommandId_t deviceCommand) override;
  ReturnValue_t doSendReadHook() override;
  LocalPoolDataSetBase* getDataSetHandle(sid_t sid) override;
+  bool dontCheckQueue() override;

 private:
  static const uint8_t SUBSYSTEM_ID = SUBSYSTEM_ID::PLOC_MPSOC_HANDLER;
@ -104,11 +106,9 @@ class PlocMPSoCHandler : public DeviceHandlerBase, public CommandsActionsIF {

  static const uint16_t APID_MASK = 0x7FF;
  static const uint16_t PACKET_SEQUENCE_COUNT_MASK = 0x3FFF;
-  static const uint8_t STATUS_OFFSET = 10;

  mpsoc::HkReport hkReport;

-  bool normalCmdPending = false;
  MessageQueueIF* eventQueue = nullptr;
  MessageQueueIF* commandActionHelperQueue = nullptr;

@ -162,13 +162,13 @@ class PlocMPSoCHandler : public DeviceHandlerBase, public CommandsActionsIF {

  SerialComIF* uartComIf = nullptr;

-  PlocMPSoCHelper* plocMPSoCHelper = nullptr;
+  PlocMpsocSpecialComHelper* specialComHelper = nullptr;
  Gpio uartIsolatorSwitch;
  object_id_t supervisorHandler = 0;
  CommandActionHelper commandActionHelper;

  // Used to block incoming commands when MPSoC helper class is currently executing a command
-  bool plocMPSoCHelperExecuting = false;
+  bool specialComHelperExecuting = false;
  bool commandIsPending = false;

  struct TmMemReadReport {
@ -177,6 +177,7 @@ class PlocMPSoCHandler : public DeviceHandlerBase, public CommandsActionsIF {
  };

  TmMemReadReport tmMemReadReport;
+  Countdown cmdCountdown = Countdown(10000);

  struct TelemetryBuffer {
    uint16_t length = 0;
@ -213,7 +214,7 @@ class PlocMPSoCHandler : public DeviceHandlerBase, public CommandsActionsIF {
  ReturnValue_t prepareTcSimplexSendFile(const uint8_t* commandData, size_t commandDataLen);
  ReturnValue_t prepareTcDownlinkDataModulate(const uint8_t* commandData, size_t commandDataLen);
  ReturnValue_t prepareTcModeSnapshot();
-  void finishTcPrep(size_t packetLen);
+  ReturnValue_t finishTcPrep(mpsoc::TcBase& tcBase);

  /**
   * @brief   This function checks the crc of the received PLOC reply.
@ -295,15 +296,11 @@ class PlocMPSoCHandler : public DeviceHandlerBase, public CommandsActionsIF {
   */
  void disableExeReportReply();

-  void printStatus(const uint8_t* data);
-
  ReturnValue_t prepareTcModeReplay();

-  uint16_t getStatus(const uint8_t* data);
+  void cmdDoneHandler(bool success, ReturnValue_t result);

  void handleActionCommandFailure(ActionId_t actionId);
-
-  std::string getStatusString(uint16_t status);
 };

 #endif /* BSP_Q7S_DEVICES_PLOC_PLOCMPSOCHANDLER_H_ */
--- a/linux/payload/PlocMpsocHelper.cpp
+++ b/linux/payload/PlocMpsocHelper.cpp
@ -1,355 +0,0 @@
-#include <linux/payload/PlocMpsocHelper.h>
-
-#include <filesystem>
-#include <fstream>
-
-#ifdef XIPHOS_Q7S
-#include "bsp_q7s/fs/FilesystemHelper.h"
-#endif
-
-#include "mission/utility/Timestamp.h"
-
-using namespace ploc;
-
-PlocMPSoCHelper::PlocMPSoCHelper(object_id_t objectId) : SystemObject(objectId) {
-  spParams.buf = commandBuffer;
-  spParams.maxSize = sizeof(commandBuffer);
-}
-
-PlocMPSoCHelper::~PlocMPSoCHelper() {}
-
-ReturnValue_t PlocMPSoCHelper::initialize() {
-#ifdef XIPHOS_Q7S
-  sdcMan = SdCardManager::instance();
-  if (sdcMan == nullptr) {
-    sif::warning << "PlocMPSoCHelper::initialize: Invalid SD Card Manager" << std::endl;
-    return returnvalue::FAILED;
-  }
-#endif
-  return returnvalue::OK;
-}
-
-ReturnValue_t PlocMPSoCHelper::performOperation(uint8_t operationCode) {
-  ReturnValue_t result = returnvalue::OK;
-  semaphore.acquire();
-  while (true) {
-#if OBSW_THREAD_TRACING == 1
-    trace::threadTrace(opCounter, "PLOC MPSOC Helper");
-#endif
-    switch (internalState) {
-      case InternalState::IDLE: {
-        semaphore.acquire();
-        break;
-      }
-      case InternalState::FLASH_WRITE: {
-        result = performFlashWrite();
-        if (result == returnvalue::OK) {
-          triggerEvent(MPSOC_FLASH_WRITE_SUCCESSFUL);
-        } else {
-          triggerEvent(MPSOC_FLASH_WRITE_FAILED);
-        }
-        internalState = InternalState::IDLE;
-        break;
-      }
-      default:
-        sif::debug << "PlocMPSoCHelper::performOperation: Invalid state" << std::endl;
-        break;
-    }
-  }
-}
-
-ReturnValue_t PlocMPSoCHelper::setComIF(DeviceCommunicationIF* communicationInterface_) {
-  uartComIF = dynamic_cast<SerialComIF*>(communicationInterface_);
-  if (uartComIF == nullptr) {
-    sif::warning << "PlocMPSoCHelper::initialize: Invalid uart com if" << std::endl;
-    return returnvalue::FAILED;
-  }
-  return returnvalue::OK;
-}
-
-void PlocMPSoCHelper::setComCookie(CookieIF* comCookie_) { comCookie = comCookie_; }
-
-void PlocMPSoCHelper::setSequenceCount(SourceSequenceCounter* sequenceCount_) {
-  sequenceCount = sequenceCount_;
-}
-
-ReturnValue_t PlocMPSoCHelper::startFlashWrite(std::string obcFile, std::string mpsocFile) {
-  ReturnValue_t result = returnvalue::OK;
-#ifdef XIPHOS_Q7S
-  result = FilesystemHelper::checkPath(obcFile);
-  if (result != returnvalue::OK) {
-    return result;
-  }
-  result = FilesystemHelper::fileExists(mpsocFile);
-  if (result != returnvalue::OK) {
-    return result;
-  }
-#endif
-#ifdef TE0720_1CFA
-  if (not std::filesystem::exists(obcFile)) {
-    sif::warning << "PlocMPSoCHelper::startFlashWrite: File " << obcFile << "does not exist"
-                 << std::endl;
-    return returnvalue::FAILED;
-  }
-#endif
-
-  flashWrite.obcFile = obcFile;
-  flashWrite.mpsocFile = mpsocFile;
-  internalState = InternalState::FLASH_WRITE;
-  result = resetHelper();
-  if (result != returnvalue::OK) {
-    return result;
-  }
-  return result;
-}
-
-ReturnValue_t PlocMPSoCHelper::resetHelper() {
-  ReturnValue_t result = returnvalue::OK;
-  semaphore.release();
-  spParams.buf = commandBuffer;
-  terminate = false;
-  result = uartComIF->flushUartRxBuffer(comCookie);
-  return result;
-}
-
-void PlocMPSoCHelper::stopProcess() { terminate = true; }
-
-ReturnValue_t PlocMPSoCHelper::performFlashWrite() {
-  ReturnValue_t result = returnvalue::OK;
-  result = flashfopen();
-  if (result != returnvalue::OK) {
-    return result;
-  }
-  uint8_t tempData[mpsoc::MAX_DATA_SIZE];
-  std::ifstream file(flashWrite.obcFile, std::ifstream::binary);
-  // Set position of next character to end of file input stream
-  file.seekg(0, file.end);
-  // tellg returns position of character in input stream
-  size_t remainingSize = file.tellg();
-  size_t dataLength = 0;
-  size_t bytesRead = 0;
-  while (remainingSize > 0) {
-    if (terminate) {
-      return returnvalue::OK;
-    }
-    if (remainingSize > mpsoc::MAX_DATA_SIZE) {
-      dataLength = mpsoc::MAX_DATA_SIZE;
-    } else {
-      dataLength = remainingSize;
-    }
-    if (file.is_open()) {
-      file.seekg(bytesRead, file.beg);
-      file.read(reinterpret_cast<char*>(tempData), dataLength);
-      bytesRead += dataLength;
-      remainingSize -= dataLength;
-    } else {
-      return FILE_CLOSED_ACCIDENTALLY;
-    }
-    (*sequenceCount)++;
-    mpsoc::TcFlashWrite tc(spParams, *sequenceCount);
-    result = tc.buildPacket(tempData, dataLength);
-    if (result != returnvalue::OK) {
-      return result;
-    }
-    result = handlePacketTransmission(tc);
-    if (result != returnvalue::OK) {
-      return result;
-    }
-  }
-  result = flashfclose();
-  if (result != returnvalue::OK) {
-    return result;
-  }
-  return result;
-}
-
-ReturnValue_t PlocMPSoCHelper::flashfopen() {
-  ReturnValue_t result = returnvalue::OK;
-  spParams.buf = commandBuffer;
-  (*sequenceCount)++;
-  mpsoc::FlashFopen flashFopen(spParams, *sequenceCount);
-  result = flashFopen.createPacket(flashWrite.mpsocFile, mpsoc::FlashFopen::APPEND);
-  if (result != returnvalue::OK) {
-    return result;
-  }
-  result = handlePacketTransmission(flashFopen);
-  if (result != returnvalue::OK) {
-    return result;
-  }
-  return returnvalue::OK;
-}
-
-ReturnValue_t PlocMPSoCHelper::flashfclose() {
-  ReturnValue_t result = returnvalue::OK;
-  spParams.buf = commandBuffer;
-  (*sequenceCount)++;
-  mpsoc::FlashFclose flashFclose(spParams, *sequenceCount);
-  result = flashFclose.createPacket(flashWrite.mpsocFile);
-  if (result != returnvalue::OK) {
-    return result;
-  }
-  result = handlePacketTransmission(flashFclose);
-  if (result != returnvalue::OK) {
-    return result;
-  }
-  return returnvalue::OK;
-}
-
-ReturnValue_t PlocMPSoCHelper::handlePacketTransmission(ploc::SpTcBase& tc) {
-  ReturnValue_t result = returnvalue::OK;
-  result = sendCommand(tc);
-  if (result != returnvalue::OK) {
-    return result;
-  }
-  result = handleAck();
-  if (result != returnvalue::OK) {
-    return result;
-  }
-  result = handleExe();
-  if (result != returnvalue::OK) {
-    return result;
-  }
-  return returnvalue::OK;
-}
-
-ReturnValue_t PlocMPSoCHelper::sendCommand(ploc::SpTcBase& tc) {
-  ReturnValue_t result = returnvalue::OK;
-  result = uartComIF->sendMessage(comCookie, tc.getFullPacket(), tc.getFullPacketLen());
-  if (result != returnvalue::OK) {
-    sif::warning << "PlocMPSoCHelper::sendCommand: Failed to send command" << std::endl;
-    triggerEvent(MPSOC_SENDING_COMMAND_FAILED, result, static_cast<uint32_t>(internalState));
-    return result;
-  }
-  return result;
-}
-
-ReturnValue_t PlocMPSoCHelper::handleAck() {
-  ReturnValue_t result = returnvalue::OK;
-  result = handleTmReception(mpsoc::SIZE_ACK_REPORT);
-  if (result != returnvalue::OK) {
-    return result;
-  }
-  SpTmReader tmPacket(tmBuf.data(), tmBuf.size());
-  result = checkReceivedTm(tmPacket);
-  if (result != returnvalue::OK) {
-    return result;
-  }
-  uint16_t apid = tmPacket.getApid();
-  if (apid != mpsoc::apid::ACK_SUCCESS) {
-    handleAckApidFailure(apid);
-    return returnvalue::FAILED;
-  }
-  return returnvalue::OK;
-}
-
-void PlocMPSoCHelper::handleAckApidFailure(uint16_t apid) {
-  if (apid == mpsoc::apid::ACK_FAILURE) {
-    triggerEvent(MPSOC_ACK_FAILURE_REPORT, static_cast<uint32_t>(internalState));
-    sif::warning << "PlocMPSoCHelper::handleAckApidFailure: Received acknowledgement failure "
-                 << "report" << std::endl;
-  } else {
-    triggerEvent(MPSOC_ACK_INVALID_APID, apid, static_cast<uint32_t>(internalState));
-    sif::warning << "PlocMPSoCHelper::handleAckApidFailure: Expected acknowledgement report "
-                 << "but received space packet with apid " << std::hex << apid << std::endl;
-  }
-}
-
-ReturnValue_t PlocMPSoCHelper::handleExe() {
-  ReturnValue_t result = returnvalue::OK;
-
-  result = handleTmReception(mpsoc::SIZE_EXE_REPORT);
-  if (result != returnvalue::OK) {
-    return result;
-  }
-  ploc::SpTmReader tmPacket(tmBuf.data(), tmBuf.size());
-  result = checkReceivedTm(tmPacket);
-  if (result != returnvalue::OK) {
-    return result;
-  }
-  uint16_t apid = tmPacket.getApid();
-  if (apid != mpsoc::apid::EXE_SUCCESS) {
-    handleExeApidFailure(apid);
-    return returnvalue::FAILED;
-  }
-  return returnvalue::OK;
-}
-
-void PlocMPSoCHelper::handleExeApidFailure(uint16_t apid) {
-  if (apid == mpsoc::apid::EXE_FAILURE) {
-    triggerEvent(MPSOC_EXE_FAILURE_REPORT, static_cast<uint32_t>(internalState));
-    sif::warning << "PlocMPSoCHelper::handleExeApidFailure: Received execution failure "
-                 << "report" << std::endl;
-  } else {
-    triggerEvent(MPSOC_EXE_INVALID_APID, apid, static_cast<uint32_t>(internalState));
-    sif::warning << "PlocMPSoCHelper::handleExeApidFailure: Expected execution report "
-                 << "but received space packet with apid " << std::hex << apid << std::endl;
-  }
-}
-
-ReturnValue_t PlocMPSoCHelper::handleTmReception(size_t remainingBytes) {
-  ReturnValue_t result = returnvalue::OK;
-  size_t readBytes = 0;
-  size_t currentBytes = 0;
-  for (int retries = 0; retries < RETRIES; retries++) {
-    result = receive(tmBuf.data() + readBytes, &currentBytes, remainingBytes);
-    if (result != returnvalue::OK) {
-      return result;
-    }
-    readBytes += currentBytes;
-    remainingBytes = remainingBytes - currentBytes;
-    if (remainingBytes == 0) {
-      break;
-    }
-  }
-  if (remainingBytes != 0) {
-    sif::warning << "PlocMPSoCHelper::handleTmReception: Failed to receive reply" << std::endl;
-    triggerEvent(MPSOC_MISSING_EXE, remainingBytes, static_cast<uint32_t>(internalState));
-    return returnvalue::FAILED;
-  }
-  return result;
-}
-
-ReturnValue_t PlocMPSoCHelper::checkReceivedTm(SpTmReader& reader) {
-  ReturnValue_t result = reader.checkSize();
-  if (result != returnvalue::OK) {
-    sif::error << "PlocMPSoCHelper::handleTmReception: Size check on received TM failed"
-               << std::endl;
-    triggerEvent(MPSOC_TM_SIZE_ERROR);
-    return result;
-  }
-  reader.checkCrc();
-  if (result != returnvalue::OK) {
-    sif::warning << "PlocMPSoCHelper::handleTmReception: CRC check failed" << std::endl;
-    triggerEvent(MPSOC_TM_CRC_MISSMATCH, *sequenceCount);
-    return result;
-  }
-  (*sequenceCount)++;
-  uint16_t recvSeqCnt = reader.getSequenceCount();
-  if (recvSeqCnt != *sequenceCount) {
-    triggerEvent(MPSOC_HELPER_SEQ_CNT_MISMATCH, *sequenceCount, recvSeqCnt);
-    *sequenceCount = recvSeqCnt;
-  }
-  return returnvalue::OK;
-}
-
-ReturnValue_t PlocMPSoCHelper::receive(uint8_t* data, size_t* readBytes, size_t requestBytes) {
-  ReturnValue_t result = returnvalue::OK;
-  uint8_t* buffer = nullptr;
-  result = uartComIF->requestReceiveMessage(comCookie, requestBytes);
-  if (result != returnvalue::OK) {
-    sif::warning << "PlocMPSoCHelper::receive: Failed to request reply" << std::endl;
-    triggerEvent(MPSOC_HELPER_REQUESTING_REPLY_FAILED, result,
-                 static_cast<uint32_t>(static_cast<uint32_t>(internalState)));
-    return returnvalue::FAILED;
-  }
-  result = uartComIF->readReceivedMessage(comCookie, &buffer, readBytes);
-  if (result != returnvalue::OK) {
-    sif::warning << "PlocMPSoCHelper::receive: Failed to read received message" << std::endl;
-    triggerEvent(MPSOC_HELPER_READING_REPLY_FAILED, result, static_cast<uint32_t>(internalState));
-    return returnvalue::FAILED;
-  }
-  if (*readBytes > 0) {
-    std::memcpy(data, buffer, *readBytes);
-  }
-  return result;
-}
--- a/linux/payload/PlocMpsocSpecialComHelper.cpp
+++ b/linux/payload/PlocMpsocSpecialComHelper.cpp
@ -0,0 +1,544 @@
+#include <fsfw/globalfunctions/arrayprinter.h>
+#include <fsfw/tasks/TaskFactory.h>
+#include <linux/payload/PlocMpsocSpecialComHelper.h>
+#include <unistd.h>
+
+#include <filesystem>
+#include <fstream>
+
+#ifdef XIPHOS_Q7S
+#include "bsp_q7s/fs/FilesystemHelper.h"
+#endif
+
+#include "mission/utility/Timestamp.h"
+
+using namespace ploc;
+
+PlocMpsocSpecialComHelper::PlocMpsocSpecialComHelper(object_id_t objectId)
+    : SystemObject(objectId) {
+  spParams.buf = commandBuffer;
+  spParams.maxSize = sizeof(commandBuffer);
+}
+
+PlocMpsocSpecialComHelper::~PlocMpsocSpecialComHelper() {}
+
+ReturnValue_t PlocMpsocSpecialComHelper::initialize() {
+#ifdef XIPHOS_Q7S
+  sdcMan = SdCardManager::instance();
+  if (sdcMan == nullptr) {
+    sif::warning << "PlocMPSoCHelper::initialize: Invalid SD Card Manager" << std::endl;
+    return returnvalue::FAILED;
+  }
+#endif
+  return returnvalue::OK;
+}
+
+ReturnValue_t PlocMpsocSpecialComHelper::performOperation(uint8_t operationCode) {
+  ReturnValue_t result = returnvalue::OK;
+  semaphore.acquire();
+  while (true) {
+#if OBSW_THREAD_TRACING == 1
+    trace::threadTrace(opCounter, "PLOC MPSOC Helper");
+#endif
+    switch (internalState) {
+      case InternalState::IDLE: {
+        semaphore.acquire();
+        break;
+      }
+      case InternalState::FLASH_WRITE: {
+        result = performFlashWrite();
+        if (result == returnvalue::OK) {
+          triggerEvent(MPSOC_FLASH_WRITE_SUCCESSFUL, sequenceCount->get());
+        } else {
+          triggerEvent(MPSOC_FLASH_WRITE_FAILED, sequenceCount->get());
+        }
+        internalState = InternalState::IDLE;
+        break;
+      }
+      case InternalState::FLASH_READ: {
+        result = performFlashRead();
+        if (result == returnvalue::OK) {
+          triggerEvent(MPSOC_FLASH_READ_SUCCESSFUL, sequenceCount->get());
+        } else {
+          triggerEvent(MPSOC_FLASH_READ_FAILED, sequenceCount->get());
+        }
+        internalState = InternalState::IDLE;
+        break;
+      }
+      default:
+        sif::debug << "PlocMPSoCHelper::performOperation: Invalid state" << std::endl;
+        break;
+    }
+  }
+}
+
+ReturnValue_t PlocMpsocSpecialComHelper::setComIF(DeviceCommunicationIF* communicationInterface_) {
+  uartComIF = dynamic_cast<SerialComIF*>(communicationInterface_);
+  if (uartComIF == nullptr) {
+    sif::warning << "PlocMPSoCHelper::initialize: Invalid uart com if" << std::endl;
+    return returnvalue::FAILED;
+  }
+  return returnvalue::OK;
+}
+
+void PlocMpsocSpecialComHelper::setComCookie(CookieIF* comCookie_) { comCookie = comCookie_; }
+
+void PlocMpsocSpecialComHelper::setSequenceCount(SourceSequenceCounter* sequenceCount_) {
+  sequenceCount = sequenceCount_;
+}
+
+ReturnValue_t PlocMpsocSpecialComHelper::startFlashWrite(std::string obcFile,
+                                                         std::string mpsocFile) {
+  if (internalState != InternalState::IDLE) {
+    return returnvalue::FAILED;
+  }
+  ReturnValue_t result = startFlashReadOrWriteBase(std::move(obcFile), std::move(mpsocFile));
+  if (result != returnvalue::OK) {
+    return result;
+  }
+  internalState = InternalState::FLASH_WRITE;
+  return semaphore.release();
+}
+
+ReturnValue_t PlocMpsocSpecialComHelper::startFlashRead(std::string obcFile, std::string mpsocFile,
+                                                        size_t readFileSize) {
+  if (internalState != InternalState::IDLE) {
+    return returnvalue::FAILED;
+  }
+  ReturnValue_t result = startFlashReadOrWriteBase(std::move(obcFile), std::move(mpsocFile));
+  if (result != returnvalue::OK) {
+    return result;
+  }
+  flashReadAndWrite.totalReadSize = readFileSize;
+  internalState = InternalState::FLASH_READ;
+  return semaphore.release();
+}
+
+void PlocMpsocSpecialComHelper::resetHelper() {
+  spParams.buf = commandBuffer;
+  terminate = false;
+  uartComIF->flushUartRxBuffer(comCookie);
+}
+
+void PlocMpsocSpecialComHelper::stopProcess() { terminate = true; }
+
+ReturnValue_t PlocMpsocSpecialComHelper::performFlashWrite() {
+  ReturnValue_t result = returnvalue::OK;
+  std::ifstream file(flashReadAndWrite.obcFile, std::ifstream::binary);
+  if (file.bad()) {
+    return returnvalue::FAILED;
+  }
+  result = flashfopen(mpsoc::FileAccessModes::WRITE | mpsoc::FileAccessModes::OPEN_ALWAYS);
+  if (result != returnvalue::OK) {
+    return result;
+  }
+  // Set position of next character to end of file input stream
+  file.seekg(0, file.end);
+  // tellg returns position of character in input stream
+  size_t remainingSize = file.tellg();
+  size_t dataLength = 0;
+  size_t bytesRead = 0;
+  while (remainingSize > 0) {
+    if (terminate) {
+      return returnvalue::OK;
+    }
+    // The minus 4 is necessary for unknown reasons. Maybe some bug in the ILH software?
+    if (remainingSize > mpsoc::MAX_FLASH_WRITE_DATA_SIZE - 4) {
+      dataLength = mpsoc::MAX_FLASH_WRITE_DATA_SIZE - 4;
+    } else {
+      dataLength = remainingSize;
+    }
+    if (file.bad() or not file.is_open()) {
+      return FILE_WRITE_ERROR;
+    }
+    file.seekg(bytesRead, file.beg);
+    file.read(reinterpret_cast<char*>(fileBuf.data()), dataLength);
+    bytesRead += dataLength;
+    remainingSize -= dataLength;
+    mpsoc::TcFlashWrite tc(spParams, *sequenceCount);
+    result = tc.setPayload(fileBuf.data(), dataLength);
+    if (result != returnvalue::OK) {
+      return result;
+    }
+    result = tc.finishPacket();
+    if (result != returnvalue::OK) {
+      return result;
+    }
+    (*sequenceCount)++;
+    result = handlePacketTransmissionNoReply(tc);
+    if (result != returnvalue::OK) {
+      return result;
+    }
+  }
+  result = flashfclose();
+  if (result != returnvalue::OK) {
+    return result;
+  }
+  return result;
+}
+
+ReturnValue_t PlocMpsocSpecialComHelper::performFlashRead() {
+  std::error_code e;
+  std::ofstream ofile(flashReadAndWrite.obcFile, std::ios::trunc | std::ios::binary);
+  if (ofile.bad()) {
+    return returnvalue::FAILED;
+  }
+  ReturnValue_t result = flashfopen(mpsoc::FileAccessModes::READ);
+  if (result != returnvalue::OK) {
+    std::filesystem::remove(flashReadAndWrite.obcFile, e);
+    return result;
+  }
+  size_t readSoFar = 0;
+  size_t nextReadSize = mpsoc::MAX_FLASH_READ_DATA_SIZE;
+  while (readSoFar < flashReadAndWrite.totalReadSize) {
+    if (terminate) {
+      std::filesystem::remove(flashReadAndWrite.obcFile, e);
+      return returnvalue::OK;
+    }
+    nextReadSize = mpsoc::MAX_FLASH_READ_DATA_SIZE;
+    if (flashReadAndWrite.totalReadSize - readSoFar < mpsoc::MAX_FLASH_READ_DATA_SIZE) {
+      nextReadSize = flashReadAndWrite.totalReadSize - readSoFar;
+    }
+    if (ofile.bad() or not ofile.is_open()) {
+      std::filesystem::remove(flashReadAndWrite.obcFile, e);
+      return FILE_READ_ERROR;
+    }
+    mpsoc::TcFlashRead flashReadRequest(spParams, *sequenceCount);
+    result = flashReadRequest.setPayload(nextReadSize);
+    if (result != returnvalue::OK) {
+      std::filesystem::remove(flashReadAndWrite.obcFile, e);
+      return result;
+    }
+    result = flashReadRequest.finishPacket();
+    if (result != returnvalue::OK) {
+      std::filesystem::remove(flashReadAndWrite.obcFile, e);
+      return result;
+    }
+    (*sequenceCount)++;
+    result = handlePacketTransmissionFlashRead(flashReadRequest, ofile, nextReadSize);
+    if (result != returnvalue::OK) {
+      std::filesystem::remove(flashReadAndWrite.obcFile, e);
+      return result;
+    }
+    readSoFar += nextReadSize;
+  }
+  result = flashfclose();
+  if (result != returnvalue::OK) {
+    return result;
+  }
+  return result;
+}
+
+ReturnValue_t PlocMpsocSpecialComHelper::flashfopen(uint8_t mode) {
+  spParams.buf = commandBuffer;
+  mpsoc::FlashFopen flashFopen(spParams, *sequenceCount);
+  ReturnValue_t result = flashFopen.setPayload(flashReadAndWrite.mpsocFile, mode);
+  if (result != returnvalue::OK) {
+    return result;
+  }
+  result = flashFopen.finishPacket();
+  if (result != returnvalue::OK) {
+    return result;
+  }
+  (*sequenceCount)++;
+  result = handlePacketTransmissionNoReply(flashFopen);
+  if (result != returnvalue::OK) {
+    return result;
+  }
+  return returnvalue::OK;
+}
+
+ReturnValue_t PlocMpsocSpecialComHelper::flashfclose() {
+  spParams.buf = commandBuffer;
+  mpsoc::FlashFclose flashFclose(spParams, *sequenceCount);
+  ReturnValue_t result = flashFclose.finishPacket();
+  if (result != returnvalue::OK) {
+    return result;
+  }
+  (*sequenceCount)++;
+  result = handlePacketTransmissionNoReply(flashFclose);
+  if (result != returnvalue::OK) {
+    return result;
+  }
+  return result;
+}
+
+ReturnValue_t PlocMpsocSpecialComHelper::handlePacketTransmissionFlashRead(mpsoc::TcFlashRead& tc,
+                                                                           std::ofstream& ofile,
+                                                                           size_t expectedReadLen) {
+  ReturnValue_t result = sendCommand(tc);
+  if (result != returnvalue::OK) {
+    return result;
+  }
+  result = handleAck();
+  if (result != returnvalue::OK) {
+    return result;
+  }
+  result = handleTmReception();
+  if (result != returnvalue::OK) {
+    return result;
+  }
+
+  // We have the nominal case where the flash read report appears first, or the case where we
+  // get an EXE failure immediately.
+  if (spReader.getApid() == mpsoc::apid::TM_FLASH_READ_REPORT) {
+    result = handleFlashReadReply(ofile, expectedReadLen);
+    if (result != returnvalue::OK) {
+      return result;
+    }
+    return handleExe();
+  } else if (spReader.getApid() == mpsoc::apid::EXE_FAILURE) {
+    handleExeFailure();
+  } else {
+    triggerEvent(MPSOC_EXE_INVALID_APID, spReader.getApid(), static_cast<uint32_t>(internalState));
+    sif::warning << "PLOC MPSoC: Expected execution report "
+                 << "but received space packet with apid " << std::hex << spReader.getApid()
+                 << std::endl;
+  }
+  return returnvalue::FAILED;
+}
+
+ReturnValue_t PlocMpsocSpecialComHelper::handlePacketTransmissionNoReply(ploc::SpTcBase& tc) {
+  ReturnValue_t result = sendCommand(tc);
+  if (result != returnvalue::OK) {
+    return result;
+  }
+  result = handleAck();
+  if (result != returnvalue::OK) {
+    return result;
+  }
+  return handleExe();
+}
+
+ReturnValue_t PlocMpsocSpecialComHelper::sendCommand(ploc::SpTcBase& tc) {
+  ReturnValue_t result = returnvalue::OK;
+  result = uartComIF->sendMessage(comCookie, tc.getFullPacket(), tc.getFullPacketLen());
+  if (result != returnvalue::OK) {
+    sif::warning << "PlocMPSoCHelper::sendCommand: Failed to send command" << std::endl;
+    triggerEvent(MPSOC_SENDING_COMMAND_FAILED, result, static_cast<uint32_t>(internalState));
+    return result;
+  }
+  return result;
+}
+
+ReturnValue_t PlocMpsocSpecialComHelper::handleAck() {
+  ReturnValue_t result = returnvalue::OK;
+  result = handleTmReception();
+  if (result != returnvalue::OK) {
+    return result;
+  }
+  result = checkReceivedTm();
+  if (result != returnvalue::OK) {
+    return result;
+  }
+  uint16_t apid = spReader.getApid();
+  if (apid != mpsoc::apid::ACK_SUCCESS) {
+    handleAckApidFailure(spReader);
+    return returnvalue::FAILED;
+  }
+  return returnvalue::OK;
+}
+
+void PlocMpsocSpecialComHelper::handleAckApidFailure(const ploc::SpTmReader& reader) {
+  uint16_t apid = reader.getApid();
+  if (apid == mpsoc::apid::ACK_FAILURE) {
+    uint16_t status = mpsoc::getStatusFromRawData(reader.getFullData());
+    sif::warning << "PLOC MPSoC ACK Failure: " << mpsoc::getStatusString(status) << std::endl;
+    triggerEvent(MPSOC_ACK_FAILURE_REPORT, static_cast<uint32_t>(internalState), status);
+  } else {
+    triggerEvent(MPSOC_ACK_INVALID_APID, apid, static_cast<uint32_t>(internalState));
+    sif::warning << "PlocMPSoCHelper::handleAckApidFailure: Expected acknowledgement report "
+                 << "but received space packet with apid " << std::hex << apid << std::endl;
+  }
+}
+
+ReturnValue_t PlocMpsocSpecialComHelper::handleExe() {
+  ReturnValue_t result = returnvalue::OK;
+
+  result = handleTmReception();
+  if (result != returnvalue::OK) {
+    return result;
+  }
+  result = checkReceivedTm();
+  if (result != returnvalue::OK) {
+    return result;
+  }
+  uint16_t apid = spReader.getApid();
+  if (apid == mpsoc::apid::EXE_FAILURE) {
+    handleExeFailure();
+    return returnvalue::FAILED;
+  } else if (apid != mpsoc::apid::EXE_SUCCESS) {
+    triggerEvent(MPSOC_EXE_INVALID_APID, apid, static_cast<uint32_t>(internalState));
+    sif::warning << "PLOC MPSoC: Expected execution report "
+                 << "but received space packet with apid " << std::hex << apid << std::endl;
+  }
+  return returnvalue::OK;
+}
+
+void PlocMpsocSpecialComHelper::handleExeFailure() {
+  uint16_t status = mpsoc::getStatusFromRawData(spReader.getFullData());
+  sif::warning << "PLOC MPSoC EXE Failure: " << mpsoc::getStatusString(status) << std::endl;
+  triggerEvent(MPSOC_EXE_FAILURE_REPORT, static_cast<uint32_t>(internalState));
+}
+
+ReturnValue_t PlocMpsocSpecialComHelper::handleTmReception() {
+  ReturnValue_t result = returnvalue::OK;
+  tmCountdown.resetTimer();
+  size_t readBytes = 0;
+  size_t currentBytes = 0;
+  uint32_t usleepDelay = 5;
+  size_t fullPacketLen = 0;
+  while (true) {
+    if (tmCountdown.hasTimedOut()) {
+      triggerEvent(MPSOC_READ_TIMEOUT, tmCountdown.getTimeoutMs());
+      return returnvalue::FAILED;
+    }
+    result = receive(tmBuf.data() + readBytes, 6, &currentBytes);
+    if (result != returnvalue::OK) {
+      return result;
+    }
+    spReader.setReadOnlyData(tmBuf.data(), tmBuf.size());
+    fullPacketLen = spReader.getFullPacketLen();
+    readBytes += currentBytes;
+    if (readBytes == 6) {
+      break;
+    }
+    usleep(usleepDelay);
+    if (usleepDelay < 200000) {
+      usleepDelay *= 4;
+    }
+  }
+  while (true) {
+    if (tmCountdown.hasTimedOut()) {
+      triggerEvent(MPSOC_READ_TIMEOUT, tmCountdown.getTimeoutMs());
+      return returnvalue::FAILED;
+    }
+    result = receive(tmBuf.data() + readBytes, fullPacketLen - readBytes, &currentBytes);
+    readBytes += currentBytes;
+    if (fullPacketLen == readBytes) {
+      break;
+    }
+    usleep(usleepDelay);
+    if (usleepDelay < 200000) {
+      usleepDelay *= 4;
+    }
+  }
+  // arrayprinter::print(tmBuf.data(), readBytes);
+  return result;
+}
+
+ReturnValue_t PlocMpsocSpecialComHelper::handleFlashReadReply(std::ofstream& ofile,
+                                                              size_t expectedReadLen) {
+  ReturnValue_t result = checkReceivedTm();
+  if (result != returnvalue::OK) {
+    return result;
+  }
+  uint16_t apid = spReader.getApid();
+  if (apid != mpsoc::apid::TM_FLASH_READ_REPORT) {
+    triggerEvent(MPSOC_FLASH_READ_PACKET_ERROR, FlashReadErrorType::FLASH_READ_APID_ERROR);
+    sif::warning << "PLOC MPSoC Flash Read: Unexpected APID" << std::endl;
+    return result;
+  }
+  const uint8_t* packetData = spReader.getPacketData();
+  size_t deserDummy = spReader.getPacketDataLen() - mpsoc::CRC_SIZE;
+  uint32_t receivedReadLen = 0;
+  // I think this is buggy, weird stuff in the short name field.
+  //  std::string receivedShortName = std::string(reinterpret_cast<const char*>(packetData), 12);
+  //  if (receivedShortName != flashReadAndWrite.mpsocFile.substr(0, 11)) {
+  //    sif::warning << "PLOC MPSoC Flash Read: Missmatch between request file name and "
+  //                    "received file name"
+  //                 << std::endl;
+  //    triggerEvent(MPSOC_FLASH_READ_PACKET_ERROR, FlashReadErrorType::FLASH_READ_FILENAME_ERROR);
+  //    return returnvalue::FAILED;
+  //  }
+  packetData += 12;
+  result = SerializeAdapter::deSerialize(&receivedReadLen, &packetData, &deserDummy,
+                                         SerializeIF::Endianness::NETWORK);
+  if (result != returnvalue::OK) {
+    return result;
+  }
+  if (receivedReadLen != expectedReadLen) {
+    sif::warning << "PLOC MPSoC Flash Read: Missmatch between request read length and "
+                    "received read length"
+                 << std::endl;
+    triggerEvent(MPSOC_FLASH_READ_PACKET_ERROR, FlashReadErrorType::FLASH_READ_READLEN_ERROR);
+    return returnvalue::FAILED;
+  }
+  ofile.write(reinterpret_cast<const char*>(packetData), receivedReadLen);
+  return returnvalue::OK;
+}
+
+ReturnValue_t PlocMpsocSpecialComHelper::fileCheck(std::string obcFile) {
+#ifdef XIPHOS_Q7S
+  ReturnValue_t result = FilesystemHelper::checkPath(obcFile);
+  if (result != returnvalue::OK) {
+    return result;
+  }
+#elif defined(TE0720_1CFA)
+  if (not std::filesystem::exists(obcFile)) {
+    sif::warning << "PlocMPSoCHelper::startFlashWrite: File " << obcFile << "does not exist"
+                 << std::endl;
+    return returnvalue::FAILED;
+  }
+#endif
+  return returnvalue::OK;
+}
+
+ReturnValue_t PlocMpsocSpecialComHelper::startFlashReadOrWriteBase(std::string obcFile,
+                                                                   std::string mpsocFile) {
+  ReturnValue_t result = fileCheck(obcFile);
+  if (result != returnvalue::OK) {
+    return result;
+  }
+
+  flashReadAndWrite.obcFile = std::move(obcFile);
+  flashReadAndWrite.mpsocFile = std::move(mpsocFile);
+  resetHelper();
+  return returnvalue::OK;
+}
+
+ReturnValue_t PlocMpsocSpecialComHelper::checkReceivedTm() {
+  ReturnValue_t result = spReader.checkSize();
+  if (result != returnvalue::OK) {
+    sif::error << "PLOC MPSoC: Size check on received TM failed" << std::endl;
+    triggerEvent(MPSOC_TM_SIZE_ERROR);
+    return result;
+  }
+  spReader.checkCrc();
+  if (result != returnvalue::OK) {
+    sif::warning << "PLOC MPSoC: CRC check failed" << std::endl;
+    triggerEvent(MPSOC_TM_CRC_MISSMATCH, *sequenceCount);
+    return result;
+  }
+  uint16_t recvSeqCnt = spReader.getSequenceCount();
+  if (recvSeqCnt != *sequenceCount) {
+    triggerEvent(MPSOC_HELPER_SEQ_CNT_MISMATCH, *sequenceCount, recvSeqCnt);
+    *sequenceCount = recvSeqCnt;
+  }
+  // This sequence count ping pong does not make any sense but it is how the MPSoC expects it.
+  (*sequenceCount)++;
+  return returnvalue::OK;
+}
+
+ReturnValue_t PlocMpsocSpecialComHelper::receive(uint8_t* data, size_t requestBytes,
+                                                 size_t* readBytes) {
+  ReturnValue_t result = returnvalue::OK;
+  uint8_t* buffer = nullptr;
+  result = uartComIF->requestReceiveMessage(comCookie, requestBytes);
+  if (result != returnvalue::OK) {
+    sif::warning << "PlocMPSoCHelper::receive: Failed to request reply" << std::endl;
+    triggerEvent(MPSOC_HELPER_REQUESTING_REPLY_FAILED, result,
+                 static_cast<uint32_t>(static_cast<uint32_t>(internalState)));
+    return returnvalue::FAILED;
+  }
+  result = uartComIF->readReceivedMessage(comCookie, &buffer, readBytes);
+  if (result != returnvalue::OK) {
+    sif::warning << "PlocMPSoCHelper::receive: Failed to read received message" << std::endl;
+    triggerEvent(MPSOC_HELPER_READING_REPLY_FAILED, result, static_cast<uint32_t>(internalState));
+    return returnvalue::FAILED;
+  }
+  if (*readBytes > 0) {
+    std::memcpy(data, buffer, *readBytes);
+  }
+  return result;
+}
--- a/linux/payload/PlocMpsocSpecialComHelper.h
+++ b/linux/payload/PlocMpsocSpecialComHelper.h
@ -1,11 +1,12 @@
 #ifndef BSP_Q7S_DEVICES_PLOCMPSOCHELPER_H_
 #define BSP_Q7S_DEVICES_PLOCMPSOCHELPER_H_

-#include <linux/payload/plocMpscoDefs.h>
+#include <linux/payload/plocMpsocHelpers.h>
 #include <mission/utility/trace.h>

 #include <string>

+#include "OBSWConfig.h"
 #include "fsfw/devicehandlers/CookieIF.h"
 #include "fsfw/objectmanager/SystemObject.h"
 #include "fsfw/osal/linux/BinarySemaphore.h"
@ -22,14 +23,14 @@
 *          MPSoC and OBC.
 * @author  J. Meier
 */
-class PlocMPSoCHelper : public SystemObject, public ExecutableObjectIF {
+class PlocMpsocSpecialComHelper : public SystemObject, public ExecutableObjectIF {
 public:
  static const uint8_t SUBSYSTEM_ID = SUBSYSTEM_ID::PLOC_MPSOC_HELPER;

  //! [EXPORT] : [COMMENT] Flash write fails
  static const Event MPSOC_FLASH_WRITE_FAILED = MAKE_EVENT(0, severity::LOW);
  //! [EXPORT] : [COMMENT] Flash write successful
-  static const Event MPSOC_FLASH_WRITE_SUCCESSFUL = MAKE_EVENT(1, severity::LOW);
+  static const Event MPSOC_FLASH_WRITE_SUCCESSFUL = MAKE_EVENT(1, severity::INFO);
  //! [EXPORT] : [COMMENT] Communication interface returned failure when trying to send the command
  //! to the MPSoC
  //! P1: Return value returned by the communication interface sendMessage function
@ -71,9 +72,19 @@ class PlocMPSoCHelper : public SystemObject, public ExecutableObjectIF {
  static const Event MPSOC_HELPER_SEQ_CNT_MISMATCH = MAKE_EVENT(11, severity::LOW);
  static const Event MPSOC_TM_SIZE_ERROR = MAKE_EVENT(12, severity::LOW);
  static const Event MPSOC_TM_CRC_MISSMATCH = MAKE_EVENT(13, severity::LOW);
+  static const Event MPSOC_FLASH_READ_PACKET_ERROR = MAKE_EVENT(14, severity::LOW);
+  static const Event MPSOC_FLASH_READ_FAILED = MAKE_EVENT(15, severity::LOW);
+  static const Event MPSOC_FLASH_READ_SUCCESSFUL = MAKE_EVENT(16, severity::INFO);
+  static const Event MPSOC_READ_TIMEOUT = MAKE_EVENT(17, severity::LOW);

-  PlocMPSoCHelper(object_id_t objectId);
-  virtual ~PlocMPSoCHelper();
+  enum FlashReadErrorType : uint32_t {
+    FLASH_READ_APID_ERROR = 0,
+    FLASH_READ_FILENAME_ERROR = 1,
+    FLASH_READ_READLEN_ERROR = 2
+  };
+
+  PlocMpsocSpecialComHelper(object_id_t objectId);
+  virtual ~PlocMpsocSpecialComHelper();

  ReturnValue_t initialize() override;
  ReturnValue_t performOperation(uint8_t operationCode = 0) override;
@ -90,6 +101,14 @@ class PlocMPSoCHelper : public SystemObject, public ExecutableObjectIF {
   * @return  returnvalue::OK if successful, otherwise error return value
   */
  ReturnValue_t startFlashWrite(std::string obcFile, std::string mpsocFile);
+  /**
+   *
+   * @param obcFile Full target file name on OBC
+   * @param mpsocFile The file on the MPSoC which should be copied ot the OBC
+   * @param readFileSize The size of the file on the MPSoC.
+   * @return
+   */
+  ReturnValue_t startFlashRead(std::string obcFile, std::string mpsocFile, size_t readFileSize);

  /**
   * @brief   Can be used to interrupt a running data transfer.
@ -104,20 +123,25 @@ class PlocMPSoCHelper : public SystemObject, public ExecutableObjectIF {
 private:
  static const uint8_t INTERFACE_ID = CLASS_ID::PLOC_MPSOC_HELPER;

-  //! [EXPORT] : [COMMENT] File accidentally close
-  static const ReturnValue_t FILE_CLOSED_ACCIDENTALLY = MAKE_RETURN_CODE(0xA0);
+  //! [EXPORT] : [COMMENT] File error occured for file transfers from OBC to the MPSoC.
+  static const ReturnValue_t FILE_WRITE_ERROR = MAKE_RETURN_CODE(0xA0);
+  //! [EXPORT] : [COMMENT] File error occured for file transfers from MPSoC to OBC.
+  static const ReturnValue_t FILE_READ_ERROR = MAKE_RETURN_CODE(0xA1);

  // Maximum number of times the communication interface retries polling data from the reply
  // buffer
  static const int RETRIES = 10000;

-  struct FlashWrite {
+  struct FlashInfo {
    std::string obcFile;
    std::string mpsocFile;
  };

-  struct FlashWrite flashWrite;
+  struct FlashRead : public FlashInfo {
+    size_t totalReadSize = 0;
+  };

+  struct FlashRead flashReadAndWrite;
 #if OBSW_THREAD_TRACING == 1
  uint32_t opCounter = 0;
 #endif
@ -134,7 +158,10 @@ class PlocMPSoCHelper : public SystemObject, public ExecutableObjectIF {
  SpacePacketCreator creator;
  ploc::SpTcParams spParams = ploc::SpTcParams(creator);

-  std::array<uint8_t, mpsoc::MAX_REPLY_SIZE> tmBuf;
+  Countdown tmCountdown = Countdown(5000);
+
+  std::array<uint8_t, mpsoc::SP_MAX_DATA_SIZE> fileBuf{};
+  std::array<uint8_t, mpsoc::MAX_REPLY_SIZE> tmBuf{};

  bool terminate = false;

@ -147,20 +174,27 @@ class PlocMPSoCHelper : public SystemObject, public ExecutableObjectIF {
  CookieIF* comCookie = nullptr;
  // Sequence count, must be set by Ploc MPSoC Handler
  SourceSequenceCounter* sequenceCount = nullptr;
+  ploc::SpTmReader spReader;

-  ReturnValue_t resetHelper();
+  void resetHelper();
  ReturnValue_t performFlashWrite();
-  ReturnValue_t flashfopen();
+  ReturnValue_t performFlashRead();
+  ReturnValue_t flashfopen(uint8_t accessMode);
  ReturnValue_t flashfclose();
-  ReturnValue_t handlePacketTransmission(ploc::SpTcBase& tc);
+  ReturnValue_t handlePacketTransmissionNoReply(ploc::SpTcBase& tc);
+  ReturnValue_t handlePacketTransmissionFlashRead(mpsoc::TcFlashRead& tc, std::ofstream& ofile,
+                                                  size_t expectedReadLen);
+  ReturnValue_t handleFlashReadReply(std::ofstream& ofile, size_t expectedReadLen);
  ReturnValue_t sendCommand(ploc::SpTcBase& tc);
-  ReturnValue_t receive(uint8_t* data, size_t* readBytes, size_t requestBytes);
+  ReturnValue_t receive(uint8_t* data, size_t requestBytes, size_t* readBytes);
  ReturnValue_t handleAck();
  ReturnValue_t handleExe();
-  void handleAckApidFailure(uint16_t apid);
-  void handleExeApidFailure(uint16_t apid);
-  ReturnValue_t handleTmReception(size_t remainingBytes);
-  ReturnValue_t checkReceivedTm(ploc::SpTmReader& reader);
+  ReturnValue_t startFlashReadOrWriteBase(std::string obcFile, std::string mpsocFile);
+  ReturnValue_t fileCheck(std::string obcFile);
+  void handleAckApidFailure(const ploc::SpTmReader& reader);
+  void handleExeFailure();
+  ReturnValue_t handleTmReception();
+  ReturnValue_t checkReceivedTm();
 };

 #endif /* BSP_Q7S_DEVICES_PLOCMPSOCHELPER_H_ */
--- a/linux/payload/plocMpsocHelpers.cpp
+++ b/linux/payload/plocMpsocHelpers.cpp
@ -0,0 +1,95 @@
+#include "plocMpsocHelpers.h"
+
+uint16_t mpsoc::getStatusFromRawData(const uint8_t* data) {
+  return (*(data + STATUS_OFFSET) << 8) | *(data + STATUS_OFFSET + 1);
+}
+std::string mpsoc::getStatusString(uint16_t status) {
+  switch (status) {
+    case (mpsoc::status_code::UNKNOWN_APID): {
+      return "Unknown APID";
+      break;
+    }
+    case (mpsoc::status_code::INCORRECT_LENGTH): {
+      return "Incorrect length";
+      break;
+    }
+    case (mpsoc::status_code::INCORRECT_CRC): {
+      return "Incorrect crc";
+      break;
+    }
+    case (mpsoc::status_code::INCORRECT_PKT_SEQ_CNT): {
+      return "Incorrect packet sequence count";
+      break;
+    }
+    case (mpsoc::status_code::TC_NOT_ALLOWED_IN_MODE): {
+      return "TC not allowed in this mode";
+      break;
+    }
+    case (mpsoc::status_code::TC_EXEUTION_DISABLED): {
+      return "TC execution disabled";
+      break;
+    }
+    case (mpsoc::status_code::FLASH_MOUNT_FAILED): {
+      return "Flash mount failed";
+      break;
+    }
+    case (mpsoc::status_code::FLASH_FILE_ALREADY_OPEN): {
+      return "Flash file already open";
+      break;
+    }
+    case (mpsoc::status_code::FLASH_FILE_ALREADY_CLOSED): {
+      return "Flash file already closed";
+      break;
+    }
+    case (mpsoc::status_code::FLASH_FILE_OPEN_FAILED): {
+      return "Flash file open failed";
+      break;
+    }
+    case (mpsoc::status_code::FLASH_FILE_NOT_OPEN): {
+      return "Flash file not open";
+      break;
+    }
+    case (mpsoc::status_code::FLASH_UNMOUNT_FAILED): {
+      return "Flash unmount failed";
+      break;
+    }
+    case (mpsoc::status_code::HEAP_ALLOCATION_FAILED): {
+      return "Heap allocation failed";
+      break;
+    }
+    case (mpsoc::status_code::INVALID_PARAMETER): {
+      return "Invalid parameter";
+      break;
+    }
+    case (mpsoc::status_code::NOT_INITIALIZED): {
+      return "Not initialized";
+      break;
+    }
+    case (mpsoc::status_code::REBOOT_IMMINENT): {
+      return "Reboot imminent";
+      break;
+    }
+    case (mpsoc::status_code::CORRUPT_DATA): {
+      return "Corrupt data";
+      break;
+    }
+    case (mpsoc::status_code::FLASH_CORRECTABLE_MISMATCH): {
+      return "Flash correctable mismatch";
+      break;
+    }
+    case (mpsoc::status_code::FLASH_UNCORRECTABLE_MISMATCH): {
+      return "Flash uncorrectable mismatch";
+      break;
+    }
+    case (mpsoc::status_code::DEFAULT_ERROR_CODE): {
+      return "Default error code";
+      break;
+    }
+    default:
+      std::stringstream ss;
+      ss << "0x" << std::hex << status;
+      return ss.str().c_str();
+      break;
+  }
+  return "";
+}
--- a/linux/payload/plocMpsocHelpers.h
+++ b/linux/payload/plocMpsocHelpers.h
@ -13,6 +13,20 @@

 namespace mpsoc {

+enum FileAccessModes : uint8_t {
+  // Opens a file, fails if the file does not exist.
+  OPEN_EXISTING = 0x00,
+  READ = 0x01,
+  WRITE = 0x02,
+  // Creates a new file, fails if it already exists.
+  CREATE_NEW = 0x04,
+  // Creates a new file, existing file is truncated and overwritten.
+  CREATE_ALWAYS = 0x08,
+  // Opens the file if it is existing. If not, a new file is created.
+  OPEN_ALWAYS = 0x10,
+  OPEN_APPEND = 0x30
+};
+
 static constexpr uint32_t HK_SET_ID = 0;

 namespace poolid {
@ -62,7 +76,7 @@ static const DeviceCommandId_t EXE_REPORT = 5;
 static const DeviceCommandId_t TM_MEMORY_READ_REPORT = 6;
 static const DeviceCommandId_t TC_FLASHFOPEN = 7;
 static const DeviceCommandId_t TC_FLASHFCLOSE = 8;
-static const DeviceCommandId_t TC_FLASHWRITE = 9;
+static const DeviceCommandId_t TC_FLASH_WRITE_FULL_FILE = 9;
 static const DeviceCommandId_t TC_FLASHDELETE = 10;
 static const DeviceCommandId_t TC_REPLAY_START = 11;
 static const DeviceCommandId_t TC_REPLAY_STOP = 12;
@ -83,6 +97,7 @@ static const DeviceCommandId_t TC_GET_HK_REPORT = 26;
 static const DeviceCommandId_t TM_GET_HK_REPORT = 27;
 static const DeviceCommandId_t TC_FLASH_GET_DIRECTORY_CONTENT = 28;
 static const DeviceCommandId_t TM_FLASH_DIRECTORY_CONTENT = 29;
+static constexpr DeviceCommandId_t TC_FLASH_READ_FULL_FILE = 30;

 // Will reset the sequence count of the OBSW
 static const DeviceCommandId_t OBSW_RESET_SEQ_COUNT = 50;
@ -104,7 +119,8 @@ static const uint16_t TC_DOWNLINK_PWR_ON = 0x113;
 static const uint16_t TC_MEM_WRITE = 0x114;
 static const uint16_t TC_MEM_READ = 0x115;
 static const uint16_t TC_CAM_TAKE_PIC = 0x116;
-static const uint16_t TC_FLASHWRITE = 0x117;
+static constexpr uint16_t TC_FLASHWRITE = 0x117;
+static constexpr uint16_t TC_FLASHREAD = 0x118;
 static const uint16_t TC_FLASHFOPEN = 0x119;
 static const uint16_t TC_FLASHFCLOSE = 0x11A;
 static constexpr uint16_t TC_FLASH_GET_DIRECTORY_CONTENT = 0x11B;
@ -125,6 +141,7 @@ static const uint16_t ACK_FAILURE = 0x401;
 static const uint16_t EXE_SUCCESS = 0x402;
 static const uint16_t EXE_FAILURE = 0x403;
 static const uint16_t TM_MEMORY_READ_REPORT = 0x404;
+static const uint16_t TM_FLASH_READ_REPORT = 0x405;
 static constexpr uint16_t TM_FLASH_DIRECTORY_CONTENT = 0x406;
 static const uint16_t TM_CAM_CMD_RPT = 0x407;
 static constexpr uint16_t TM_HK_GET_REPORT = 0x408;
@ -137,6 +154,8 @@ static const char NULL_TERMINATOR = '\0';
 static const uint8_t MIN_SPACE_PACKET_LENGTH = 7;
 static const uint8_t SPACE_PACKET_HEADER_SIZE = 6;

+static const uint8_t STATUS_OFFSET = 10;
+
 static constexpr size_t CRC_SIZE = 2;

 /**
@ -160,9 +179,15 @@ static const uint16_t LENGTH_TC_MEM_READ = 8;
 * at sheet README
 */
 static constexpr size_t SP_MAX_SIZE = 1024;
-static const size_t MAX_REPLY_SIZE = SP_MAX_SIZE * 3;
-static const size_t MAX_COMMAND_SIZE = SP_MAX_SIZE;
-static const size_t MAX_DATA_SIZE = 1016;
+static constexpr size_t MAX_REPLY_SIZE = SP_MAX_SIZE * 3;
+static constexpr size_t MAX_COMMAND_SIZE = SP_MAX_SIZE;
+// 1016 bytes.
+static constexpr size_t SP_MAX_DATA_SIZE = SP_MAX_SIZE - ccsds::HEADER_LEN - CRC_SIZE;
+static constexpr size_t FLASH_READ_MIN_OVERHEAD = 16;
+// 1000 bytes.
+static const size_t MAX_FLASH_READ_DATA_SIZE = SP_MAX_DATA_SIZE - FLASH_READ_MIN_OVERHEAD;
+// 1012 bytes, 4 bytes for the write length.
+static constexpr size_t MAX_FLASH_WRITE_DATA_SIZE = SP_MAX_DATA_SIZE - sizeof(uint32_t);

 /**
 * The replay write sequence command has a maximum delay for the execution report which amounts to
@ -185,7 +210,7 @@ static const uint16_t TC_EXEUTION_DISABLED = 0x5E2;
 static const uint16_t FLASH_MOUNT_FAILED = 0x5E3;
 static const uint16_t FLASH_FILE_ALREADY_CLOSED = 0x5E4;
 static const uint16_t FLASH_FILE_OPEN_FAILED = 0x5E5;
-static const uint16_t FLASH_FILE_ALREDY_OPEN = 0x5E6;
+static const uint16_t FLASH_FILE_ALREADY_OPEN = 0x5E6;
 static const uint16_t FLASH_FILE_NOT_OPEN = 0x5E7;
 static const uint16_t FLASH_UNMOUNT_FAILED = 0x5E8;
 static const uint16_t HEAP_ALLOCATION_FAILED = 0x5E9;
@ -210,7 +235,7 @@ class TcBase : public ploc::SpTcBase, public MPSoCReturnValuesIF {
  virtual ~TcBase() = default;

  // Initial length field of space packet. Will always be updated when packet is created.
-  static const uint16_t INIT_LENGTH = 2;
+  static const uint16_t INIT_LENGTH = CRC_SIZE;

  /**
   * @brief    Constructor
@ -220,47 +245,23 @@ class TcBase : public ploc::SpTcBase, public MPSoCReturnValuesIF {
   */
  TcBase(ploc::SpTcParams params, uint16_t apid, uint16_t sequenceCount)
      : ploc::SpTcBase(params, apid, 0, sequenceCount) {
+    payloadStart = spParams.buf + ccsds::HEADER_LEN;
    spParams.setFullPayloadLen(INIT_LENGTH);
  }

-  ReturnValue_t buildPacket() { return buildPacket(nullptr, 0); }
-
  /**
-   * @brief   Function to initialize the space packet
-   *
-   * @param commandData       Pointer to command specific data
-   * @param commandDataLen    Length of command data
-   *
+   * @brief   Function to finsh and write the space packet. It is expected that the user has
+   * set the payload fields in the child class*
   * @return  returnvalue::OK if packet creation was successful, otherwise error return value
   */
-  ReturnValue_t buildPacket(const uint8_t* commandData, size_t commandDataLen) {
-    payloadStart = spParams.buf + ccsds::HEADER_LEN;
-    ReturnValue_t res;
-    if (commandData != nullptr and commandDataLen > 0) {
-      res = initPacket(commandData, commandDataLen);
-      if (res != returnvalue::OK) {
-        return res;
-      }
-    }
-
+  ReturnValue_t finishPacket() {
    updateSpFields();
-    res = checkSizeAndSerializeHeader();
+    ReturnValue_t res = checkSizeAndSerializeHeader();
    if (res != returnvalue::OK) {
      return res;
    }
    return calcAndSetCrc();
  }
-
- protected:
-  /**
-   * @brief   Must be overwritten by the child class to define the command specific parameters
-   *
-   * @param commandData       Pointer to received command data
-   * @param commandDataLen    Length of received command data
-   */
-  virtual ReturnValue_t initPacket(const uint8_t* commandData, size_t commandDataLen) {
-    return returnvalue::OK;
-  }
 };

 /**
@ -278,8 +279,7 @@ class TcMemRead : public TcBase {

  uint16_t getMemLen() const { return memLen; }

- protected:
-  ReturnValue_t initPacket(const uint8_t* commandData, size_t commandDataLen) override {
+  ReturnValue_t setPayload(const uint8_t* commandData, size_t commandDataLen) {
    ReturnValue_t result = returnvalue::OK;
    result = lengthCheck(commandDataLen);
    if (result != returnvalue::OK) {
@ -325,8 +325,7 @@ class TcMemWrite : public TcBase {
  TcMemWrite(ploc::SpTcParams params, uint16_t sequenceCount)
      : TcBase(params, apid::TC_MEM_WRITE, sequenceCount) {}

- protected:
-  ReturnValue_t initPacket(const uint8_t* commandData, size_t commandDataLen) override {
+  ReturnValue_t setPayload(const uint8_t* commandData, size_t commandDataLen) {
    ReturnValue_t result = returnvalue::OK;
    result = lengthCheck(commandDataLen);
    if (result != returnvalue::OK) {
@ -368,72 +367,58 @@ class TcMemWrite : public TcBase {
 /**
 * @brief   Class to help creation of flash fopen command.
 */
-class FlashFopen : public ploc::SpTcBase {
+class FlashFopen : public TcBase {
 public:
  FlashFopen(ploc::SpTcParams params, uint16_t sequenceCount)
-      : ploc::SpTcBase(params, apid::TC_FLASHFOPEN, sequenceCount) {}
+      : TcBase(params, apid::TC_FLASHFOPEN, sequenceCount) {}

-  static const char APPEND = 'a';
-  static const char WRITE = 'w';
-  static const char READ = 'r';
-
-  ReturnValue_t createPacket(std::string filename, char accessMode_) {
-    accessMode = accessMode_;
+  ReturnValue_t setPayload(std::string filename, uint8_t mode) {
+    accessMode = mode;
    size_t nameSize = filename.size();
-    spParams.setFullPayloadLen(nameSize + sizeof(NULL_TERMINATOR) + sizeof(accessMode) + CRC_SIZE);
+    spParams.setFullPayloadLen(256 + sizeof(uint8_t) + CRC_SIZE);
    ReturnValue_t result = checkPayloadLen();
    if (result != returnvalue::OK) {
      return result;
    }
    std::memcpy(payloadStart, filename.c_str(), nameSize);
-    *(spParams.buf + nameSize) = NULL_TERMINATOR;
-    std::memcpy(payloadStart + nameSize + sizeof(NULL_TERMINATOR), &accessMode, sizeof(accessMode));
-    updateSpFields();
-    return calcAndSetCrc();
+    // payloadStart[nameSize] = NULL_TERMINATOR;
+    std::memset(payloadStart + nameSize, 0, 256 - nameSize);
+    // payloadStart[255] = NULL_TERMINATOR;
+    payloadStart[256] = accessMode;
+    return returnvalue::OK;
  }

 private:
-  char accessMode = APPEND;
+  uint8_t accessMode = FileAccessModes::OPEN_EXISTING;
 };

 /**
 * @brief   Class to help creation of flash fclose command.
 */
-class FlashFclose : public ploc::SpTcBase {
+class FlashFclose : public TcBase {
 public:
  FlashFclose(ploc::SpTcParams params, uint16_t sequenceCount)
-      : ploc::SpTcBase(params, apid::TC_FLASHFCLOSE, sequenceCount) {}
-
-  ReturnValue_t createPacket(std::string filename) {
-    size_t nameSize = filename.size();
-    spParams.setFullPayloadLen(nameSize + sizeof(NULL_TERMINATOR) + CRC_SIZE);
-    ReturnValue_t result = checkPayloadLen();
-    if (result != returnvalue::OK) {
-      return result;
-    }
-    std::memcpy(payloadStart, filename.c_str(), nameSize);
-    *(payloadStart + nameSize) = NULL_TERMINATOR;
-    return calcAndSetCrc();
+      : TcBase(params, apid::TC_FLASHFCLOSE, sequenceCount) {
+    spParams.setFullPayloadLen(CRC_SIZE);
  }
 };

 /**
 * @brief   Class to build flash write space packet.
 */
-class TcFlashWrite : public ploc::SpTcBase {
+class TcFlashWrite : public TcBase {
 public:
  TcFlashWrite(ploc::SpTcParams params, uint16_t sequenceCount)
-      : ploc::SpTcBase(params, apid::TC_FLASHWRITE, sequenceCount) {}
+      : TcBase(params, apid::TC_FLASHWRITE, sequenceCount) {}

-  ReturnValue_t buildPacket(const uint8_t* writeData, uint32_t writeLen_) {
-    ReturnValue_t result = returnvalue::OK;
+  ReturnValue_t setPayload(const uint8_t* writeData, uint32_t writeLen_) {
    writeLen = writeLen_;
-    if (writeLen > MAX_DATA_SIZE) {
-      sif::debug << "FlashWrite::createPacket: Command data too big" << std::endl;
+    if (writeLen > MAX_FLASH_WRITE_DATA_SIZE) {
+      sif::error << "TcFlashWrite: Command data too big" << std::endl;
      return returnvalue::FAILED;
    }
-    spParams.setFullPayloadLen(static_cast<uint16_t>(writeLen) + 4 + CRC_SIZE);
-    result = checkPayloadLen();
+    spParams.setFullPayloadLen(sizeof(uint32_t) + static_cast<uint16_t>(writeLen) + CRC_SIZE);
+    ReturnValue_t result = checkPayloadLen();
    if (result != returnvalue::OK) {
      return result;
    }
@ -443,11 +428,11 @@ class TcFlashWrite : public ploc::SpTcBase {
    if (result != returnvalue::OK) {
      return result;
    }
-    std::memcpy(payloadStart + sizeof(writeLen), writeData, writeLen);
+    std::memcpy(payloadStart + sizeof(uint32_t), writeData, writeLen);
    updateSpFields();
-    auto res = checkSizeAndSerializeHeader();
-    if (res != returnvalue::OK) {
-      return res;
+    result = checkSizeAndSerializeHeader();
+    if (result != returnvalue::OK) {
+      return result;
    }
    return calcAndSetCrc();
  }
@ -456,15 +441,52 @@ class TcFlashWrite : public ploc::SpTcBase {
  uint32_t writeLen = 0;
 };

+class TcFlashRead : public TcBase {
+ public:
+  TcFlashRead(ploc::SpTcParams params, uint16_t sequenceCount)
+      : TcBase(params, apid::TC_FLASHREAD, sequenceCount) {}
+
+  ReturnValue_t setPayload(uint32_t readLen) {
+    if (readLen > MAX_FLASH_READ_DATA_SIZE) {
+      sif::error << "TcFlashRead: Read length " << readLen << " too large" << std::endl;
+      return returnvalue::FAILED;
+    }
+    spParams.setFullPayloadLen(sizeof(uint32_t) + CRC_SIZE);
+    ReturnValue_t result = checkPayloadLen();
+    if (result != returnvalue::OK) {
+      return result;
+    }
+    size_t serializedSize = ccsds::HEADER_LEN;
+    result = SerializeAdapter::serialize(&readLen, payloadStart, &serializedSize, spParams.maxSize,
+                                         SerializeIF::Endianness::NETWORK);
+    if (result != returnvalue::OK) {
+      return result;
+    }
+    updateSpFields();
+    result = checkSizeAndSerializeHeader();
+    if (result != returnvalue::OK) {
+      return result;
+    }
+    result = calcAndSetCrc();
+    if (result != returnvalue::OK) {
+      return result;
+    }
+    readSize = readLen;
+    return result;
+  }
+
+  uint32_t readSize = 0;
+};
+
 /**
 * @brief   Class to help creation of flash delete command.
 */
-class TcFlashDelete : public ploc::SpTcBase {
+class TcFlashDelete : public TcBase {
 public:
  TcFlashDelete(ploc::SpTcParams params, uint16_t sequenceCount)
-      : ploc::SpTcBase(params, apid::TC_FLASHDELETE, sequenceCount) {}
+      : TcBase(params, apid::TC_FLASHDELETE, sequenceCount) {}

-  ReturnValue_t buildPacket(std::string filename) {
+  ReturnValue_t setPayload(std::string filename) {
    size_t nameSize = filename.size();
    spParams.setFullPayloadLen(nameSize + sizeof(NULL_TERMINATOR) + CRC_SIZE);
    auto res = checkPayloadLen();
@ -503,8 +525,7 @@ class TcReplayStart : public TcBase {
  TcReplayStart(ploc::SpTcParams params, uint16_t sequenceCount)
      : TcBase(params, apid::TC_REPLAY_START, sequenceCount) {}

- protected:
-  ReturnValue_t initPacket(const uint8_t* commandData, size_t commandDataLen) override {
+  ReturnValue_t setPayload(const uint8_t* commandData, size_t commandDataLen) {
    ReturnValue_t result = returnvalue::OK;
    spParams.setFullPayloadLen(commandDataLen + CRC_SIZE);
    result = lengthCheck(commandDataLen);
@ -552,8 +573,7 @@ class TcDownlinkPwrOn : public TcBase {
  TcDownlinkPwrOn(ploc::SpTcParams params, uint16_t sequenceCount)
      : TcBase(params, apid::TC_DOWNLINK_PWR_ON, sequenceCount) {}

- protected:
-  ReturnValue_t initPacket(const uint8_t* commandData, size_t commandDataLen) override {
+  ReturnValue_t setPayload(const uint8_t* commandData, size_t commandDataLen) {
    ReturnValue_t result = returnvalue::OK;
    result = lengthCheck(commandDataLen);
    if (result != returnvalue::OK) {
@ -626,7 +646,7 @@ class TcGetDirContent : public TcBase {
  TcGetDirContent(ploc::SpTcParams params, uint16_t sequenceCount)
      : TcBase(params, apid::TC_FLASH_GET_DIRECTORY_CONTENT, sequenceCount) {}

-  ReturnValue_t initPacket(const uint8_t* commandData, size_t commandDataLen) {
+  ReturnValue_t setPayload(const uint8_t* commandData, size_t commandDataLen) {
    ReturnValue_t result = returnvalue::OK;
    // Yeah it needs to be 256.. even if the path is shorter.
    spParams.setFullPayloadLen(256 + CRC_SIZE);
@ -659,8 +679,7 @@ class TcReplayWriteSeq : public TcBase {
  TcReplayWriteSeq(ploc::SpTcParams params, uint16_t sequenceCount)
      : TcBase(params, apid::TC_REPLAY_WRITE_SEQUENCE, sequenceCount) {}

- protected:
-  ReturnValue_t initPacket(const uint8_t* commandData, size_t commandDataLen) override {
+  ReturnValue_t setPayload(const uint8_t* commandData, size_t commandDataLen) {
    ReturnValue_t result = returnvalue::OK;
    spParams.setFullPayloadLen(commandDataLen + sizeof(NULL_TERMINATOR) + CRC_SIZE);
    result = lengthCheck(commandDataLen);
@ -689,36 +708,69 @@ class TcReplayWriteSeq : public TcBase {
 /**
 * @brief   Helps to extract the fields of the flash write command from the PUS packet.
 */
-class FlashWritePusCmd : public MPSoCReturnValuesIF {
+class FlashBasePusCmd : public MPSoCReturnValuesIF {
 public:
-  FlashWritePusCmd(){};
+  FlashBasePusCmd() = default;
+  virtual ~FlashBasePusCmd() = default;

-  ReturnValue_t extractFields(const uint8_t* commandData, size_t commandDataLen) {
+  virtual ReturnValue_t extractFields(const uint8_t* commandData, size_t commandDataLen) {
    if (commandDataLen > (config::MAX_PATH_SIZE + config::MAX_FILENAME_SIZE + MAX_FILENAME_SIZE)) {
      return INVALID_LENGTH;
    }
-    obcFile = std::string(reinterpret_cast<const char*>(commandData));
-    if (obcFile.size() > (config::MAX_PATH_SIZE + config::MAX_FILENAME_SIZE)) {
+    size_t fileLen = strnlen(reinterpret_cast<const char*>(commandData), commandDataLen);
+    if (fileLen > (config::MAX_PATH_SIZE + config::MAX_FILENAME_SIZE)) {
      return FILENAME_TOO_LONG;
    }
-    mpsocFile = std::string(
-        reinterpret_cast<const char*>(commandData + obcFile.size() + SIZE_NULL_TERMINATOR));
-    if (mpsocFile.size() > MAX_FILENAME_SIZE) {
+    obcFile = std::string(reinterpret_cast<const char*>(commandData), fileLen);
+    fileLen =
+        strnlen(reinterpret_cast<const char*>(commandData + obcFile.size() + SIZE_NULL_TERMINATOR),
+                commandDataLen - obcFile.size() - 1);
+    if (fileLen > MAX_FILENAME_SIZE) {
      return MPSOC_FILENAME_TOO_LONG;
    }
+    mpsocFile = std::string(
+        reinterpret_cast<const char*>(commandData + obcFile.size() + SIZE_NULL_TERMINATOR),
+        fileLen);
    return returnvalue::OK;
  }

-  std::string getObcFile() { return obcFile; }
+  const std::string& getObcFile() const { return obcFile; }

-  std::string getMPSoCFile() { return mpsocFile; }
+  const std::string& getMPSoCFile() const { return mpsocFile; }
+
+ protected:
+  size_t getParsedSize() const {
+    return getObcFile().size() + getMPSoCFile().size() + 2 * SIZE_NULL_TERMINATOR;
+  }
+  static const size_t SIZE_NULL_TERMINATOR = 1;

 private:
-  static const size_t SIZE_NULL_TERMINATOR = 1;
-  std::string obcFile = "";
-  std::string mpsocFile = "";
+  std::string obcFile;
+  std::string mpsocFile;
 };

+class FlashReadPusCmd : public FlashBasePusCmd {
+ public:
+  FlashReadPusCmd(){};
+
+  ReturnValue_t extractFields(const uint8_t* commandData, size_t commandDataLen) override {
+    ReturnValue_t result = FlashBasePusCmd::extractFields(commandData, commandDataLen);
+    if (result != returnvalue::OK) {
+      return result;
+    }
+    if (commandDataLen < (getParsedSize() + 4)) {
+      return returnvalue::FAILED;
+    }
+    size_t deserDummy = 4;
+    return SerializeAdapter::deSerialize(&readSize, commandData + getParsedSize(), &deserDummy,
+                                         SerializeIF::Endianness::NETWORK);
+  }
+
+  size_t getReadSize() const { return readSize; }
+
+ private:
+  size_t readSize = 0;
+};
 /**
 * @brief   Class to build replay stop space packet.
 */
@ -754,7 +806,7 @@ class TcCamTakePic : public TcBase {
  TcCamTakePic(ploc::SpTcParams params, uint16_t sequenceCount)
      : TcBase(params, apid::TC_CAM_TAKE_PIC, sequenceCount) {}

-  ReturnValue_t initPacket(const uint8_t* commandData, size_t commandDataLen) override {
+  ReturnValue_t setPayload(const uint8_t* commandData, size_t commandDataLen) {
    if (commandDataLen > MAX_DATA_LENGTH) {
      return INVALID_LENGTH;
    }
@ -783,7 +835,7 @@ class TcSimplexSendFile : public TcBase {
  TcSimplexSendFile(ploc::SpTcParams params, uint16_t sequenceCount)
      : TcBase(params, apid::TC_SIMPLEX_SEND_FILE, sequenceCount) {}

-  ReturnValue_t initPacket(const uint8_t* commandData, size_t commandDataLen) override {
+  ReturnValue_t setPayload(const uint8_t* commandData, size_t commandDataLen) {
    if (commandDataLen > MAX_DATA_LENGTH) {
      return INVALID_LENGTH;
    }
@ -808,7 +860,7 @@ class TcDownlinkDataModulate : public TcBase {
  TcDownlinkDataModulate(ploc::SpTcParams params, uint16_t sequenceCount)
      : TcBase(params, apid::TC_DOWNLINK_DATA_MODULATE, sequenceCount) {}

-  ReturnValue_t initPacket(const uint8_t* commandData, size_t commandDataLen) override {
+  ReturnValue_t setPayload(const uint8_t* commandData, size_t commandDataLen) {
    if (commandDataLen > MAX_DATA_LENGTH) {
      return INVALID_LENGTH;
    }
@ -826,8 +878,7 @@ class TcCamcmdSend : public TcBase {
  TcCamcmdSend(ploc::SpTcParams params, uint16_t sequenceCount)
      : TcBase(params, apid::TC_CAM_CMD_SEND, sequenceCount) {}

- protected:
-  ReturnValue_t initPacket(const uint8_t* commandData, size_t commandDataLen) override {
+  ReturnValue_t setPayload(const uint8_t* commandData, size_t commandDataLen) {
    if (commandDataLen > MAX_DATA_LENGTH) {
      return INVALID_LENGTH;
    }
@ -912,6 +963,9 @@ class HkReport : public StaticLocalDataSet<36> {
      lp_var_t<uint8_t>(sid.objectId, mpsoc::poolid::REBOOT_MPSOC_REQUIRED, this);
 };

+uint16_t getStatusFromRawData(const uint8_t* data);
+std::string getStatusString(uint16_t status);
+
 }  // namespace mpsoc

 #endif /* MISSION_DEVICES_DEVICEDEFINITIONS_PLOCMPSOCDEFINITIONS_H_ */
--- a/mission/acs/str/StarTrackerHandler.cpp
+++ b/mission/acs/str/StarTrackerHandler.cpp
@ -17,6 +17,7 @@ extern "C" {
 #include <thread>

 #include "OBSWConfig.h"
+#include "eive/definitions.h"

 std::atomic_bool JCFG_DONE(false);

@ -152,7 +153,7 @@ ReturnValue_t StarTrackerHandler::executeAction(ActionId_t actionId, MessageQueu
      return EXECUTION_FINISHED;
    }
    case (startracker::SET_JSON_FILE_NAME): {
-      if (size > MAX_PATH_SIZE) {
+      if (size > config::MAX_PATH_SIZE) {
        return FILE_PATH_TOO_LONG;
      }
      paramJsonFile = std::string(reinterpret_cast<const char*>(data), size);
@ -189,7 +190,7 @@ ReturnValue_t StarTrackerHandler::executeAction(ActionId_t actionId, MessageQueu
      if (result != returnvalue::OK) {
        return result;
      }
-      if (size > MAX_PATH_SIZE + MAX_FILE_NAME) {
+      if (size > config::MAX_PATH_SIZE + config::MAX_FILENAME_SIZE) {
        return FILE_PATH_TOO_LONG;
      }
      result = strHelper->startImageUpload(std::string(reinterpret_cast<const char*>(data), size));
@ -204,7 +205,7 @@ ReturnValue_t StarTrackerHandler::executeAction(ActionId_t actionId, MessageQueu
      if (result != returnvalue::OK) {
        return result;
      }
-      if (size > MAX_PATH_SIZE) {
+      if (size > config::MAX_PATH_SIZE) {
        return FILE_PATH_TOO_LONG;
      }
      result =
@ -228,14 +229,14 @@ ReturnValue_t StarTrackerHandler::executeAction(ActionId_t actionId, MessageQueu
      return EXECUTION_FINISHED;
    }
    case (startracker::CHANGE_IMAGE_DOWNLOAD_FILE): {
-      if (size > MAX_FILE_NAME) {
+      if (size > config::MAX_FILENAME_SIZE) {
        return FILENAME_TOO_LONG;
      }
      strHelper->setDownloadImageName(std::string(reinterpret_cast<const char*>(data), size));
      return EXECUTION_FINISHED;
    }
    case (startracker::SET_FLASH_READ_FILENAME): {
-      if (size > MAX_FILE_NAME) {
+      if (size > config::MAX_FILENAME_SIZE) {
        return FILENAME_TOO_LONG;
      }
      strHelper->setFlashReadFilename(std::string(reinterpret_cast<const char*>(data), size));
@ -246,7 +247,7 @@ ReturnValue_t StarTrackerHandler::executeAction(ActionId_t actionId, MessageQueu
      if (result != returnvalue::OK) {
        return result;
      }
-      if (size > MAX_PATH_SIZE + MAX_FILE_NAME) {
+      if (size > config::MAX_PATH_SIZE + config::MAX_FILENAME_SIZE) {
        return FILE_PATH_TOO_LONG;
      }
      result =
@ -1568,7 +1569,7 @@ ReturnValue_t StarTrackerHandler::executeFlashReadCommand(const uint8_t* command
               << std::endl;
    return result;
  }
-  if (commandDataLen - sizeof(startRegion) - sizeof(length) > MAX_PATH_SIZE) {
+  if (commandDataLen - sizeof(startRegion) - sizeof(length) > config::MAX_PATH_SIZE) {
    sif::warning << "StarTrackerHandler::executeFlashReadCommand: Received command with invalid"
                 << " path and filename" << std::endl;
    return FILE_PATH_TOO_LONG;
@ -1708,7 +1709,7 @@ ReturnValue_t StarTrackerHandler::prepareParamCommand(const uint8_t* commandData
                                                      bool reinitSet) {
  // Stopwatch watch;
  ReturnValue_t result = returnvalue::OK;
-  if (commandDataLen > MAX_PATH_SIZE) {
+  if (commandDataLen > config::MAX_PATH_SIZE) {
    return FILE_PATH_TOO_LONG;
  }
  if (reinitSet) {
--- a/mission/acs/str/StarTrackerHandler.h
+++ b/mission/acs/str/StarTrackerHandler.h
@ -144,9 +144,6 @@ class StarTrackerHandler : public DeviceHandlerBase {
  //! [EXPORT] : [COMMENT] Failed to boot star tracker into bootloader mode
  static const Event BOOTING_BOOTLOADER_FAILED_EVENT = MAKE_EVENT(2, severity::LOW);

-  static const size_t MAX_PATH_SIZE = 50;
-  static const size_t MAX_FILE_NAME = 30;
-
  static const uint8_t STATUS_OFFSET = 2;
  static const uint8_t PARAMS_OFFSET = 2;
  static const uint8_t TICKS_OFFSET = 3;
--- a/2
+++ b/2
@ -1 +1 @@
-Subproject commit 0c1bfc6fd32e66fe0da13bebc4eeb3030ead13a9
+Subproject commit 6ec0ce20fa98877c9f88acb5fe9129254291344b