diff --git a/BF_companion b/BF_companion
index f8369dc..a1b362e 100755
Binary files a/BF_companion and b/BF_companion differ
diff --git a/main.c b/main.c
index b65bb87..f97cf7f 100644
--- a/main.c
+++ b/main.c
@@ -695,6 +695,43 @@ void insert_marker_to_file(char* logfilename, char* marker_text){
 }
 
 
+
+void receive_to_file(t_x502_hnd hnd, char* logfilename, uint32_t* inp_buff, uint32_t max_total_words, uint32_t timeout){
+
+
+
+//  fprintf(logfile_ptr, "0xFF00000 \n");
+//  fprintf(logfile_ptr, "0xFFFFFFF \n");
+//  fprintf(logfile_ptr, "0xFF00000 \n");
+
+//  uint32_t timeout = 100;
+  uint32_t recv_Err_code = X502_Recv(hnd, inp_buff, max_total_words, timeout);
+  printf("receive code: %d\n", recv_Err_code);
+
+  if (recv_Err_code > 0){
+	  char logfilename_tmp[300];
+	  snprintf(logfilename_tmp, sizeof(logfilename_tmp), "%s.tmp", logfilename);
+	  printf("tmp file: %s ",logfilename_tmp);
+	  FILE* logfile_ptr = fopen(logfilename_tmp, "a");
+
+	//uint32_t recv_Err_code = X502_Recv(hnd, inp_buff, max_total_words, 20000);
+      uint32_t received_words = recv_Err_code;
+	  for (uint32_t word_I = 0; word_I < received_words; word_I ++){
+		//printf("%06d 0x%08X\n", word_I, inp_buff[word_I]);
+		fprintf(logfile_ptr, "0x%08X \n", inp_buff[word_I]);
+	  }
+	  printf("received %ld words\n", received_words);
+	  fclose(logfile_ptr);
+	  rename(logfilename_tmp, logfilename);
+  }else if (recv_Err_code == 0){
+	  printf("no data received. timeout\n");
+  }else{
+	  printf("receive error: %d\n======================\n", recv_Err_code);
+  }
+}
+
+
+/*
 void receive_to_file(t_x502_hnd hnd, char* logfilename, uint32_t* inp_buff, uint32_t max_total_words, uint32_t timeout){
   char logfilename_tmp[300];
   snprintf(logfilename_tmp, sizeof(logfilename_tmp), "%s.tmp", logfilename);
@@ -723,7 +760,7 @@ void receive_to_file(t_x502_hnd hnd, char* logfilename, uint32_t* inp_buff, uint
   rename(logfilename_tmp, logfilename);
 }
 
-
+*/
 
 
 
@@ -863,7 +900,8 @@ int main(int argc, char** argv) {
 				char tmp_data_filename[256];
 				struct timespec ts;
 				uint32_t max_total_words = 1000000;
-				uint32_t *inp_buff = malloc(1024*100*1024*2*4);
+				uint32_t *inp_buff = malloc(1024*100*1024*2*4);
+				uint32_t runs_since_streams_clean = 0;
 				while(state.run_I < state.runs_N){
 					max_total_words = 10000000;
 					timespec_get(&ts, TIME_UTC);
@@ -873,11 +911,13 @@ int main(int argc, char** argv) {
 					snprintf(tmp_data_filename, sizeof(tmp_data_filename), "%s/received_data_%ld.%ld.csv", state.data_path, ts.tv_sec, ts.tv_nsec);
 					printf("%u/%u dumping to file: %s\n", (unsigned)state.run_I, (unsigned)state.runs_N, tmp_data_filename);
 					receive_to_file(hnd, tmp_data_filename, inp_buff,  max_total_words, state.run_length);
-					X502_StreamsStop(hnd);
-					X502_StreamsStart(hnd);
-
-					state.run_I++;
-				  }
+					if (runs_since_streams_clean >= 10){
+						runs_since_streams_clean = 0;
+						X502_StreamsStop(hnd);
+						X502_StreamsStart(hnd);
+					}
+					state.run_I++;
+					runs_since_streams_clean++;				  }
 				  free(inp_buff);
 					  X502_Close(hnd);
 					  // освобождаем описатель
@@ -907,8 +947,9 @@ int main(int argc, char** argv) {
 				state.run_I = 0;
 				char tmp_data_filename[256];
 				struct timespec ts;
-				uint32_t max_total_words = 0;
+				uint32_t max_total_words = 10000000;
 				uint32_t *inp_buff = malloc(1024*100*1024*2*4);
+				uint32_t runs_since_streams_clean = 0;
 				while (1){ //should be infinite. because it is RUN_MODE_INF
 				//while(state.run_I < state.runs_N){
 					max_total_words = 10000000;
@@ -919,7 +960,13 @@ int main(int argc, char** argv) {
 					snprintf(tmp_data_filename, sizeof(tmp_data_filename), "%s/received_data_%ld.%ld.csv", state.data_path, ts.tv_sec, ts.tv_nsec);
 						printf("%u dumping to file: %s\n", (unsigned)state.run_I, tmp_data_filename);
 					receive_to_file(hnd, tmp_data_filename, inp_buff,  max_total_words, state.run_length);
+					if (runs_since_streams_clean >= 10){
+						runs_since_streams_clean = 0;
+						X502_StreamsStop(hnd);
+						X502_StreamsStart(hnd);
+					}
 					state.run_I++;
+					runs_since_streams_clean++;
 				  }
 				  free(inp_buff);
 					  X502_Close(hnd);