diff --git a/inc/board_config.h b/inc/board_config.h
index d6af13d..a3a36cb 100644
--- a/inc/board_config.h
+++ b/inc/board_config.h
@@ -12,6 +12,8 @@
 // #define POWER_SUPPLY_12V
 #define POWER_SUPPLY_24V
 
+// #define DEBUG_VOFA_TOOL
+
 /******************************************************************************/
 
 #ifdef POWER_SUPPLY_12V
diff --git a/src/led.c b/src/led.c
index 35f89eb..a89c9b4 100644
--- a/src/led.c
+++ b/src/led.c
@@ -35,5 +35,5 @@ void led_blink_config(void)
 
     timer_enable(LED_BLINK_TIMER);
 
-    nvic_irq_enable(LED_BLINK_IRQ, 2);
+    nvic_irq_enable(LED_BLINK_IRQ, 3U);
 }
\ No newline at end of file
diff --git a/src/main.c b/src/main.c
index 023f270..08d0193 100644
--- a/src/main.c
+++ b/src/main.c
@@ -25,26 +25,25 @@ int main(void)
     /* configure LED */
     led_blink_config();
     /* configure FWDGT */
-    watchdog_init();
+    // watchdog_init();
 
-#ifdef SOFTWARE_IIC
-    soft_i2c_config();
-#else
-    i2c_config();
-#endif
+// #ifdef SOFTWARE_IIC
+//     soft_i2c_config();
+// #else
+//     i2c_config();
+// #endif
 
     printf("system start!\r\n");
 
     ultrasonic_config();
 
     while(1){
-        gd60914_get_object_tempture();
+        // gd60914_get_object_tempture();
 
         delay_ms(50);
-
         ultrasonic_pwm_out_cycles(ULTRASONIC_TX_CYCLES);
 
-        watchdog_reload();
+        // watchdog_reload();
     }
 }
 
diff --git a/src/rs485_protocol.c b/src/rs485_protocol.c
index 787cbc4..923218b 100644
--- a/src/rs485_protocol.c
+++ b/src/rs485_protocol.c
@@ -110,6 +110,9 @@ void ultrasonic_distance_report(void) {
 
     distance_uint16 = ultrasonic_calc_distance();
 
+#ifdef DEBUG_VOFA_TOOL
+    printf("%d\n", distance_uint16)
+#else
     package_data[0] = (distance_uint16 >> 8) & 0xFF;
     package_data[1] = distance_uint16 & 0xFF;
 
@@ -120,4 +123,5 @@ void ultrasonic_distance_report(void) {
     printf("%c%c%c", package_header[0], package_header[1], package_header[2]);
     printf("%c%c", package_data[0], package_data[1]);
     printf("%c", calculate_crc(combined_data, 6));
+#endif
 }
diff --git a/src/ultrasonic_analog.c b/src/ultrasonic_analog.c
index 10ef5b5..6ed775d 100644
--- a/src/ultrasonic_analog.c
+++ b/src/ultrasonic_analog.c
@@ -140,7 +140,7 @@ void ultrasonic_config(void) {
 }
 
 uint16_t ultrasonic_calc_distance(void) {
-    while (!ultrasonicMeasurementDone);
+    // while (!ultrasonicMeasurementDone);
     // uint32_t us_value = timer_channel_capture_value_register_read(US_ECHO_TIMER, US_ECHO_CH);
     uint16_t distance = (TIME_CORRECTION_US + g_capture_value) * 17;
     /*