fix bug

Core/Src/main.c

@@ -115,8 +115,10 @@ int main(void)
   if (sts_aq_o3_start_pooling_mode() ==0)
   {
 	  do {
-		  sts_aq_o3_query(&o3_data);
-		  printf("\r\n cycle %d: o3 =%4d %s : %.2f mg/m3 \r\n", i, o3_data.o3_ppb, (o3_data.o3_unit==0x04)?"ppb":"non", o3_data.o3_mg_per_m3);
+		  if (sts_aq_o3_query(&o3_data) ==0)
+		  {
+			  printf("\r\n cycle %d: o3 =%4d %s : %.2f mg/m3 \r\n", i, o3_data.o3_ppb, (o3_data.o3_unit==0x04)?"ppb":"non", o3_data.o3_mg_per_m3);
+		  }
 		  HAL_Delay(4000);
 		  HAL_Delay(4000);
 		  HAL_Delay(4000);

Core/Src/sts_aq_o3.c

@@ -43,6 +43,8 @@ int sts_aq_o3_start_autony_mode(void)
     {
 	  	  printf("\r\n Transmit anony mode failure \r\n");
 	  	  return -1;
+    } else {
+    	  printf("\r\n Change to anony mode success \r\n");
     }
 	return 0;
 }
@@ -63,7 +65,8 @@ void sts_aq_o3_autony_run_mode(sts_sensor_o3_t *sts_sensor_data)
 	  	  /*##-1- Put UART peripheral in reception process ###########################*/
 	  	  if (HAL_UART_Receive_IT(&huart1, (uint8_t *)aRxBuffer, 9) != HAL_OK)
 	  	  {
-	  		  printf("\r\n Transmit receiving data failure \r\n");
+	  		  printf("\r\n Periodic Receiving data failure ...........\r\n");
+	  		  return ;
 	  	  }
 
 	  	  printf("\nSensor data = ");
@@ -96,19 +99,20 @@ int sts_aq_o3_query(sts_sensor_o3_t *sts_sensor_data)
 	  {
 		  printf("\r\n UART Receiving data failure \r\n");
 		  return -2;
-	  } else {
-		  printf("\r\n UART Receiving data  \r\n");
 	  }
-
 	  printf("\n Received data = ");
 	  for (uint8_t j=0; j<sizeof(aRxBuffer); j++)
 	  printf(" %02x ",aRxBuffer[j]);
-
-	  sts_sensor_data->o3_ppb 		= (int)(aRxBuffer[4]*256+aRxBuffer[5]);
-	  sts_sensor_data->o3_range 	= (int)(aRxBuffer[6]*256+aRxBuffer[7]);
-	  sts_sensor_data->o3_unit 		= (uint8_t)aRxBuffer[2];
-	  sts_sensor_data->o3_mg_per_m3	= (float)(2.140*(float)((aRxBuffer[4]*256+aRxBuffer[5])/1000.0));
-
+	  if ((aRxBuffer[0] ==0xff)&&(aRxBuffer[1] == 0x17))
+	  {
+		  sts_sensor_data->o3_ppb 		= (int)(aRxBuffer[4]*256+aRxBuffer[5]);
+		  sts_sensor_data->o3_range 	= (int)(aRxBuffer[6]*256+aRxBuffer[7]);
+		  sts_sensor_data->o3_unit 		= (uint8_t)aRxBuffer[2];
+		  sts_sensor_data->o3_mg_per_m3	= (float)(2.140*(float)((aRxBuffer[4]*256+aRxBuffer[5])/1000.0));
+	  } else {
+		  printf("\r\n Received data invalid xxxxx \r\n");
+		  return -3;
+	  }
 	  return 0;
 //	  printf("\r\n Seq:=%5d Read O3 = %d (ppb) [Range=%d unit=%s ]  | == %.2f mg/m3 \r\n", i, (int)(aRxBuffer[4]*256+aRxBuffer[5]),
 //			  (int)(aRxBuffer[6]*256+aRxBuffer[7]),(aRxBuffer[2]==0x04)?"ppb":"ppm", (float)(2.140*(float)((aRxBuffer[4]*256+aRxBuffer[5])/1000.0)));