diff --git a/sysmgr/sys_mgr.cpp b/sysmgr/sys_mgr.cpp
index 889c6b9..e0a7243 100644
--- a/sysmgr/sys_mgr.cpp
+++ b/sysmgr/sys_mgr.cpp
@@ -126,6 +126,32 @@ SysMgr* SysMgr::ins() {
 size_t      SysMgr::osGetSysRunTime() { return HAL_GetTick(); }
 UBaseType_t uxTaskGetSystemState(TaskStatus_t* const pxTaskStatusArray, const UBaseType_t uxArraySize, uint32_t* const pulTotalRunTime);
 
+void SysMgr::checkRst(void) {
+  if (__HAL_RCC_GET_FLAG(RCC_FLAG_PINRST) != RESET) {  // NRST 引脚复位
+    printf("RESET_REASON: PIN reset \n");
+    m_reset_reason = kreset_reason_pinrst;
+  } else if (__HAL_RCC_GET_FLAG(RCC_FLAG_PORRST) != RESET) {  // 上电掉电复位
+    printf("RESET_REASON: POR/PDR reset \n");
+    m_reset_reason = kreset_reason_porrst;
+  } else if (__HAL_RCC_GET_FLAG(RCC_FLAG_SFTRST) != RESET) {  //  软件复位
+    printf("RESET_REASON: Software reset  \n");
+    m_reset_reason = kreset_reason_sftrst;
+  } else if (__HAL_RCC_GET_FLAG(RCC_FLAG_IWDGRST) != RESET) {  // 独立看门狗复位
+    printf("RESET_REASON: Independent watchdog reset \n");
+    m_reset_reason = kreset_reason_iwdgrst;
+  } else if (__HAL_RCC_GET_FLAG(RCC_FLAG_WWDGRST) != RESET) {  // 窗口看门狗复位
+    printf("RESET_REASON: Window watchdog reset \n");
+    m_reset_reason = kreset_reason_wwdgrst;
+  } else if (__HAL_RCC_GET_FLAG(RCC_FLAG_LPWRRST) != RESET) {  // 低功耗复位
+    printf("RESET_REASON: (Low-power reset \n");
+    m_reset_reason = kreset_reason_lpwrrst;
+  } else {
+    printf("RESET_REASON: Unkown reset \n");
+    m_reset_reason = kreset_reason_unkown;
+  }
+  __HAL_RCC_CLEAR_RESET_FLAGS();  // 清除复位标志
+}
+
 void SysMgr::initedFinished() {  //
   static TaskStatus_t pxTaskStatusArray[SDK_MAX_TASK + 1];
   UBaseType_t         uxArraySize = SDK_MAX_TASK + 1;
@@ -137,6 +163,7 @@ void SysMgr::initedFinished() {  //
   ZASSERT_INFO(m_ntask < SDK_MAX_TASK, "task num is too large, please increase SDK_MAX_TASK");
 
   PVD_Init();
+  checkRst();
 }
 
 size_t SysMgr::osGetMinimumEverFreeHeapSize() { return ::xPortGetMinimumEverFreeHeapSize(); }
diff --git a/sysmgr/sys_mgr.hpp b/sysmgr/sys_mgr.hpp
index 3e43b64..609b426 100644
--- a/sysmgr/sys_mgr.hpp
+++ b/sysmgr/sys_mgr.hpp
@@ -7,13 +7,24 @@ class ZTaskInfo {
   osThreadId Id;
 };
 
+typedef enum {
+  kreset_reason_pinrst  = 1,  // NRST引脚复位
+  kreset_reason_porrst  = 2,  // 上电掉电复位
+  kreset_reason_sftrst  = 3,  // 软件复位
+  kreset_reason_iwdgrst = 4,  // 独立看门狗复位
+  kreset_reason_wwdgrst = 5,  // 窗口看门狗复位
+  kreset_reason_lpwrrst = 6,  // 低功耗复位
+  kreset_reason_unkown  = 7,  //
+} reset_reason_t;
+
 class SysMgr {
  private:
   /* data */
 
  public:
-  ZTaskInfo m_task[30] = {0};
-  int       m_ntask    = 0;
+  ZTaskInfo      m_task[30]     = {0};
+  int            m_ntask        = 0;
+  reset_reason_t m_reset_reason = kreset_reason_unkown;
 
   static SysMgr* ins();
   void           initedFinished();
@@ -45,6 +56,14 @@ class SysMgr {
   void osTaskGetState(osThreadId id, char* state);
 
   int32_t getTaskNum();
+
+  /***********************************************************************************************************************
+   *                                                        CHIP                                                         *
+   ***********************************************************************************************************************/
+  reset_reason_t chipGetResetReason() { return m_reset_reason; }
+
+ private:
+  void checkRst(void);
 };
 
 }  // namespace iflytop