added warning latch to avoid spam

src/fsfw/tmtcservices/TmTcBridge.cpp

@@ -183,13 +183,16 @@ ReturnValue_t TmTcBridge::storeDownlinkData(TmTcMessage *message) {
 	}
 
 	if(tmFifo->full()) {
-#if FSFW_CPP_OSTREAM_ENABLED == 1
+	    if(warningLatch) {
+    #if FSFW_CPP_OSTREAM_ENABLED == 1
             sif::warning << "TmTcBridge::storeDownlinkData: TM downlink max. number "
                     "of stored packet IDs reached!" << std::endl;
-#else
+    #else
             sif::printWarning("TmTcBridge::storeDownlinkData: TM downlink max. number "
                     "of stored packet IDs reached!\n");
-#endif
+    #endif
+            warningLatch = true;
+	    }
 	    if(overwriteOld) {
 	        tmFifo->retrieve(&storeId);
 	        tmStore->deleteData(storeId);

src/fsfw/tmtcservices/TmTcBridge.h

@@ -75,6 +75,7 @@ public:
 	virtual uint16_t getIdentifier() override;
 	virtual MessageQueueId_t getRequestQueue() override;
 
+    bool warningLatch = true;
 protected:
 	//! Cached for initialize function.
 	object_id_t tmStoreId = objects::NO_OBJECT;