diff --git a/BF_companion b/BF_companion
index b49a9b2..447fb56 100755
Binary files a/BF_companion and b/BF_companion differ
diff --git a/main.c b/main.c
index 4178004..5d38048 100644
--- a/main.c
+++ b/main.c
@@ -851,6 +851,12 @@ uint32_t X502_FlushRcv_buff(t_x502_hnd hnd){
 	return ready;
 }
 
+void insert_marker_to_file(char* logfilename, char* marker_text){
+	printf("marker %s \n", marker_text);
+	FILE* logfile_ptr = fopen(logfilename, "a");
+	fprintf(logfile_ptr, "marker %s \n", marker_text);
+	fclose(logfile_ptr);
+}
 
 void receive_to_file(t_x502_hnd hnd, char* logfilename, uint32_t* inp_buff, uint32_t max_total_words){
   FILE* logfile_ptr = fopen(logfilename, "a");
@@ -1213,6 +1219,8 @@ int main(int argc, char** argv) {
 		uint32_t recv_Err_code = 0;
 
 
+		insert_marker_to_file(logfilename, "start transparent");
+
 		printf("\nStart transparent mode\n");
 		BF_exec_cmd_simple(hnd, 0x8007, 10, 1); //start transparent
 
@@ -1276,7 +1284,7 @@ int main(int argc, char** argv) {
 //		printf("\nStart SEMITRANSPARENT mode\n");
 //		BF_exec_cmd_simple(hnd, 0x800B, 2, 1); //start SEMITRANSPARENT
 
-
+		insert_marker_to_file(logfilename, "start AVG");
 		printf("\nStart AVG mode\n");
 		BF_exec_cmd_simple(hnd, 0x8008, 2, 1); //start averaging
 
@@ -1311,8 +1319,6 @@ int main(int argc, char** argv) {
 		data_receive_trys_counter = 100;
 		max_total_words = 100000;
 
-//		void receive_data(t_x502_hnd hnd, FILE* logfile_ptr, uint32_t* inp_buff, int data_receive_trys_counter, uint32_t max_total_words, DUMP_TO_FILE)
-
 		//printf("\n dbg value:  ");
 		//BF_exec_cmd_simple(hnd, 0x800A, 10, 1);
 
@@ -1338,20 +1344,34 @@ int main(int argc, char** argv) {
 
 
 
-		printf("\nStart transparent mode\n");
-		BF_exec_cmd_simple(hnd, 0x8007, 10, 1); //start transparent
-
-		printf("\nflush TX buff. \n Number of free TX descriptors before flushing:");
-		BF_exec_cmd_simple(hnd, 0x8010, 10, 1);
 
 
-		printf("\nFlushed from receiving buff: %d\n", X502_FlushRcv_buff(hnd));
 
-//		printf("\n dbg value:  ");
-//		BF_exec_cmd_simple(hnd, 0x800A, 10, 1);
-		receive_data(hnd, logfilename, inp_buff,  data_receive_trys_counter,  max_total_words, DUMP_TO_FILE);
-//		printf("\n dbg value:  ");
-//		BF_exec_cmd_simple(hnd, 0x800A, 10, 1);
+		insert_marker_to_file(logfilename, "enable FFT");
+		printf("\nEnabled FFT\n");
+		BF_exec_cmd_simple(hnd, 0x8011, 2, 1); //enable FFT
+
+		max_total_words = 100000;
+//		printf("\nflush TX buff. \n Number of free TX descriptors before flushing:");
+//		BF_exec_cmd_simple(hnd, 0x8010, 10, 1);
+
+		X502_StreamsStop(hnd);
+		X502_StreamsStart(hnd);
+
+		receive_to_file(hnd, logfilename, inp_buff,  max_total_words);
+
+		insert_marker_to_file(logfilename, "enable SYNC_DETector");
+		printf("\nEnabled SYNC_DETector\n");
+		BF_exec_cmd_simple(hnd, 0x8012, 2, 1); //enable FFT
+		max_total_words = 100000;
+
+//		printf("\nflush TX buff. \n Number of free TX descriptors before flushing:");
+//		BF_exec_cmd_simple(hnd, 0x8010, 10, 1);
+
+		X502_StreamsStop(hnd);
+		X502_StreamsStart(hnd);
+
+		receive_to_file(hnd, logfilename, inp_buff,  max_total_words);
 
 
 
@@ -1365,6 +1385,15 @@ int main(int argc, char** argv) {
 
 
 
+
+
+
+
+
+
+
+		insert_marker_to_file(logfilename, "start transparent");
+
 		printf("\nStart transparent mode\n");
 		BF_exec_cmd_simple(hnd, 0x8007, 2, 1); //start transparent
 		X502_StreamsStop(hnd);
diff --git a/plotter.py b/plotter.py
index 3576cad..7d46f1c 100755
--- a/plotter.py
+++ b/plotter.py
@@ -26,7 +26,7 @@ if __name__ == "__main__":
     main()
   else:
     f = open(argv[1], "rt")
-    data = {}
+    data = {"markers":{"N":[], "text":[]}}
     values_N = 0
     for line in f:
         #print(line)
@@ -66,6 +66,10 @@ if __name__ == "__main__":
               chan_mode = int(line_splt[3][:-1])
               chan_range = int(line_splt[5])
               ADC_settings["chans"][chan_N] = {"mode":t_x502_lch_mode[chan_mode], "range":t_x502_adc_range[chan_range]}
+            elif line_splt[0] == "marker":
+              data["markers"]["N"].append(values_N)
+              data["markers"]["text"].append(line)
+
             else:
               print("strange line:")
               print(line)
@@ -89,10 +93,12 @@ if __name__ == "__main__":
     print(ADC_settings_str)
     chart = go.Figure()
     chart.update_layout(title=argv[1] + "<br>" + ADC_settings_str)
+    chart.add_trace(go.Scattergl(x=data["markers"]["N"], y=[i for i in range(len(data["markers"]["N"]))], name="markers", mode="markers", text=data["markers"]["text"]))
     for key, val in data.items():
-      if (key.count("_N") + key.count("_hex")) == 0:
-        #print(key+"_hex :", data[key+"_hex"])
-        chart.add_trace(go.Scattergl(x=data[key+"_N"], y=data[key], name=key, mode="lines", text=data[key+"_hex"]))
-       # chart.add_trace(go.Scattergl(x=data[key+"_N"], y=data[key], name=key, mode="lines+markers", text=data[key+"_hex"]))
+      if key != "markers":
+        if (key.count("_N") + key.count("_hex")) == 0:
+          #print(key+"_hex :", data[key+"_hex"])
+          chart.add_trace(go.Scattergl(x=data[key+"_N"], y=data[key], name=key, mode="lines", text=data[key+"_hex"]))
+         # chart.add_trace(go.Scattergl(x=data[key+"_N"], y=data[key], name=key, mode="lines+markers", text=data[key+"_hex"]))
     chart.show()