diff --git a/include/znordic.h b/include/znordic.h
index f1b605b..e3f5781 100644
--- a/include/znordic.h
+++ b/include/znordic.h
@@ -48,6 +48,7 @@ void wd_init();
 void wd_feed();
 
 void znordic_init();
+void znordic_init_without_wd();
 void znordic_loop();
 
 void    znrf_gpio_cfg_output(uint32_t pin_number, nrf_gpio_pin_pull_t pull);
diff --git a/src/znordic.c b/src/znordic.c
index e7339d3..8445f4b 100644
--- a/src/znordic.c
+++ b/src/znordic.c
@@ -4,6 +4,7 @@
 #include <stdbool.h>
 #include <stdint.h>
 
+#include "ble_dfu.h"
 #include "boards.h"
 #include "nrf_delay.h"
 #include "nrf_drv_clock.h"
@@ -13,14 +14,14 @@
 #include "nrf_log_ctrl.h"
 #include "nrf_log_default_backends.h"
 #include "nrfx_rtc.h"
-#include "ble_dfu.h"
 /*********************************************************************
  * INCLUDES
  */
 #include "nrf_drv_wdt.h"
 nrf_drv_wdt_channel_id m_channel_id;
 
-void wd_init() {
+static bool m_wd_is_enable = false;
+void        wd_init() {
   // WDT_CONFIG_RELOAD_VALUE 修改这个数值修改喂狗周期,单位ms
   nrf_drv_wdt_config_t config = NRF_DRV_WDT_DEAFULT_CONFIG;
   config.reload_value         = WDT_CONFIG_RELOAD_VALUE;
@@ -29,8 +30,11 @@ void wd_init() {
   err_code = nrf_drv_wdt_channel_alloc(&m_channel_id);
   ZERROR_CHECK(err_code);
   nrf_drv_wdt_enable();
+  m_wd_is_enable = true;
+}
+void wd_feed() {
+  if (m_wd_is_enable) nrfx_wdt_feed();
 }
-void wd_feed() { nrfx_wdt_feed(); }
 
 /*******************************************************************************
  *                                     RTC                                     *
@@ -41,8 +45,7 @@ static void                rtcCallbackFunc(nrf_drv_rtc_int_type_t interruptType)
 /*******************************************************************************
  *                                    CODE                                     *
  *******************************************************************************/
-void znordic_init() {
-  wd_init();
+void znordic_init_without_wd() {
   {
     /*******************************************************************************
      *                               日志系统初始??                                *
@@ -103,6 +106,11 @@ void znordic_init() {
   }
 }
 
+void znordic_init() {
+  wd_init();
+  znordic_init_without_wd();
+}
+
 void znordic_loop() {
   while (true) {
     app_sched_execute();
@@ -158,9 +166,7 @@ uint32_t znordic_haspassed_ms(uint32_t last) {
   }
 }
 
-bool znordic_rtc_has_setted(){
-  return g_power_on_rtc != DEFAULT_TIME;
-}
+bool znordic_rtc_has_setted() { return g_power_on_rtc != DEFAULT_TIME; }
 
 void znordic_rtc_settime_s(uint32_t timestampNow) {
   if (timestampNow < znordic_getpower_on_s()) {