修复编译错误

SOFTWARE-FreeRTOS/Source/MHZ14B.cpp

@@ -38,7 +38,9 @@ static uint16_t MH_Z14B(int *MH_Z14B_DATA_IS_OK)
         //printf("CHECKSUM: %X = %X\n", CO2_DATA[8], CHECKSUM);
         //printf("CO2 Concentration: %d ppm\n", CO2_CONC);
         *MH_Z14B_DATA_IS_OK = 1;
-    } else {
+    } 
+    /*
+    else {
         // 校准传感器 零点 （ZERO）
         uint8_t ZERO[] = { 0XFF, 0X01, 0X87, 0X00, 0X00, 0X00, 0X00, 0X00, 0X78 };
         uart_write_blocking(UART1, ZERO, 9);
@@ -54,6 +56,7 @@ static uint16_t MH_Z14B(int *MH_Z14B_DATA_IS_OK)
         *MH_Z14B_DATA_IS_OK = 0;
         printf("CO2 concentration reading failed!\n");
     }
+    */
 
 
     return CO2_CONC;
@@ -75,6 +78,9 @@ void CO2(void *pvParameters)
             snprintf(CO2_DATA_TEMP, BUFER, "CO2 Concentration: %d ppm\n", CO2_DATA);
             _HC_12(CO2_DATA_TEMP);
             memset(CO2_DATA_TEMP, 0, BUFER);
+        } else {
+            printf("CO2 reading failed!!!");
+            vTaskDelay(pdMS_TO_TICKS(3000));    // 非阻塞延时
         }
         
         //_printTaskStackHighWaterMark("CO2");