Av 993/gss datalogging command

TARS/src/mcu_main/main.cpp

@@ -297,8 +297,9 @@ static THD_FUNCTION(dataLogger_THD, arg) {
 #ifdef THREAD_DEBUG
         Serial.println("Data Logging thread entrance");
 #endif
-
-        sd_logger.update();
+        if (datalog_is_running) {
+            sd_logger.update();
+        }
 
         chThdSleepMilliseconds(6);
     }

TARS/src/mcu_main/telemetry.cpp

@@ -109,7 +109,7 @@ void Telemetry::handleCommand(const telemetry_command &cmd) {
         return;
     }
     last_command_id = (int16_t)cmd.cmd_id;
-
+    
     /*
      * Write frequency to SD card to save
      * between runs
@@ -130,6 +130,14 @@ void Telemetry::handleCommand(const telemetry_command &cmd) {
         }
         Serial.println("[DEBUG]: Got abort");
     }
+
+    if (cmd.command == START_LOGGING) {
+        datalog_is_running = true;
+    }
+
+    if (cmd.command == STOP_LOGGING) {
+        datalog_is_running = false;
+    }
 }
 
 // #define TLM_DEBUG

TARS/src/mcu_main/telemetry.h

@@ -69,7 +69,7 @@ struct TelemetryPacket {
 };
 
 // Commands transmitted from ground station to rocket
-enum CommandType { SET_FREQ, SET_CALLSIGN, ABORT, TEST_FLAPS, EMPTY };
+enum CommandType { SET_FREQ, SET_CALLSIGN, ABORT, TEST_FLAPS, EMPTY, START_LOGGING, STOP_LOGGING };
 
 struct telemetry_command {
     CommandType command;
@@ -90,6 +90,8 @@ struct command_handler_struct {
 class Telemetry {
    public:
     bool abort = false;
+    bool datalog_is_running = false;
+
 
     Telemetry();
 

ground/src/feather/main.cpp

@@ -331,6 +331,10 @@ void SerialInput(const char* key, const char* value) {
         return;
     } else if (strcmp(key, "FLAP") == 0) {
         command.command = CommandType::TEST_FLAP;
+    } else if (strcmp(key, "START_LOGGING") == 0) {
+        command.command = CommandType::START_LOGGING;
+    } else if (strcmp(key, "STOP_LOGGING") == 0) {
+        command.command = CommandType::STOP_LOGGING;
     } else {
         SerialError();
         return;