diff --git a/mfbd.c b/mfbd.c
index 0d9b5a7..e8fd63b 100644
--- a/mfbd.c
+++ b/mfbd.c
@@ -11,6 +11,7 @@
  * 2022-08-05     smartmx      add reset params function.
  * 2023-03-15     smartmx      add state declaration.
  * 2023-07-03     smartmx      add Section Definition option.
+ * 2023-07-15     smartmx      add skip function.
  *
  */
 
@@ -230,6 +231,59 @@ void mfbd_nbtn_scan(const mfbd_group_t *_pbtn_group)
     }
 }
 
+/**
+ * @brief skip some times of mfbd_btn_count_t with last state.
+ *
+ * @param _pbtn_group is a pointer of mfbd_group_t.
+ * @param times is times need to skip.
+ *
+ * @return None.
+ */
+void mfbd_nbtn_skip(const mfbd_group_t *_pbtn_group, mfbd_btn_count_t times)
+{
+    mfbd_nbtn_t **_ppbtn = _pbtn_group->nbtns;
+    mfbd_nbtn_t *_pbtn = *_ppbtn;
+
+    while (_pbtn != NULL)
+    {
+        if(_pbtn->state == MFBD_BTN_STATE_DOWN)
+        {
+            if (((MFBD_LONG_TIME_IN_FUC) > 0) && (_pbtn->btn_info->btn_long_code != 0))
+            {
+                /* if long_time is 0 or long_code is 0, disable long and repeat check. */
+                if (_pbtn->long_count < (MFBD_LONG_TIME_IN_FUC))
+                {
+                    if(((MFBD_LONG_TIME_IN_FUC) - 1 - _pbtn->long_count) > times)
+                    {
+                        _pbtn->long_count = _pbtn->long_count + times;
+                    }
+                    else
+                    {
+                        _pbtn->long_count = MFBD_LONG_TIME_IN_FUC - 1;
+                    }
+                }
+            }
+        }
+        else if(_pbtn->state == MFBD_BTN_STATE_LONG)
+        {
+            if (((MFBD_REPEAT_TIME_IN_FUC) > 0) && (_pbtn->btn_info->btn_down_code[0] != 0))
+            {
+                if(((MFBD_REPEAT_TIME_IN_FUC) - 1 - _pbtn->repeat_count) > times)
+                {
+                    _pbtn->repeat_count = _pbtn->repeat_count + times;
+                }
+                else
+                {
+                    _pbtn->repeat_count = MFBD_REPEAT_TIME_IN_FUC - 1;
+                }
+            }
+        }
+
+        _ppbtn++;
+        _pbtn = *_ppbtn;
+    }
+}
+
 /**
  * @brief reset all normal buttons' params.
  *
@@ -393,6 +447,79 @@ void mfbd_mbtn_scan(const mfbd_group_t *_pbtn_group)
     }
 }
 
+/**
+ * @brief skip some times of mfbd_btn_count_t with last state.
+ *
+ * @param _pbtn_group is a pointer of mfbd_group_t.
+ * @param times is times need to skip.
+ *
+ * @return None.
+ */
+void mfbd_mbtn_skip(const mfbd_group_t *_pbtn_group, mfbd_btn_count_t times)
+{
+    mfbd_mbtn_t **_ppbtn = _pbtn_group->mbtns;
+    mfbd_mbtn_t *_pbtn = *_ppbtn;
+
+    while (_pbtn != NULL)
+    {
+        if(_pbtn->state == MFBD_BTN_STATE_UP)
+        {
+            if (_pbtn->multiclick_state != 0)
+            {
+                if (_pbtn->multiclick_count < (MFBD_MULTICLICK_TIME_IN_FUC))
+                {
+                    if(((MFBD_MULTICLICK_TIME_IN_FUC) - _pbtn->multiclick_count) > times)
+                    {
+                        _pbtn->multiclick_count = _pbtn->multiclick_count + times;
+                    }
+                    else
+                    {
+                        _pbtn->multiclick_state = 0;
+                    }
+                }
+            }
+        }
+        else if(_pbtn->state == MFBD_BTN_STATE_DOWN)
+        {
+            if (_pbtn->multiclick_state == 0)
+            {
+                if (((MFBD_LONG_TIME_IN_FUC) > 0) && (_pbtn->btn_info->btn_long_code != 0))
+                {
+                    /* if long_time is 0 or long_code is 0, disable long and repeat check. */
+                    if (_pbtn->long_count < (MFBD_LONG_TIME_IN_FUC))
+                    {
+                        if(((MFBD_LONG_TIME_IN_FUC) - 1 - _pbtn->long_count) > times)
+                        {
+                            _pbtn->long_count = _pbtn->long_count + times;
+                        }
+                        else
+                        {
+                            _pbtn->long_count = MFBD_LONG_TIME_IN_FUC - 1;
+                        }
+                    }
+                }
+            }
+        }
+        else if(_pbtn->state == MFBD_BTN_STATE_LONG)
+        {
+            if (((MFBD_REPEAT_TIME_IN_FUC) > 0) && (_pbtn->btn_info->btn_down_code[0] != 0))
+            {
+                if(((MFBD_REPEAT_TIME_IN_FUC) - 1 - _pbtn->repeat_count) > times)
+                {
+                    _pbtn->repeat_count = _pbtn->repeat_count + times;
+                }
+                else
+                {
+                    _pbtn->repeat_count = MFBD_REPEAT_TIME_IN_FUC - 1;
+                }
+            }
+        }
+
+        _ppbtn++;
+        _pbtn = *_ppbtn;
+    }
+}
+
 /**
  * @brief reset all multi-function buttons' params.
  *
@@ -473,6 +600,37 @@ void mfbd_group_scan(const mfbd_group_t *_pbtn_group)
 }
 
 
+/**
+ * @brief skip some times with last state.
+ *
+ * @param _pbtn_group is a pointer of mfbd_group_t.
+ * @param times is times need to skip.
+ *
+ * @return None.
+ */
+void mfbd_group_skip(const mfbd_group_t *_pbtn_group, mfbd_btn_count_t times)
+{
+    /* tbtn doesn't need to skip times. */
+
+#if MFBD_USE_NORMAL_BUTTON
+    if (_pbtn_group->nbtns != NULL)
+    {
+        /* skip times of normal buttons in group.*/
+        mfbd_nbtn_skip(_pbtn_group, times);
+    }
+#endif
+
+#if MFBD_USE_MULTIFUCNTION_BUTTON
+    if (_pbtn_group->mbtns != NULL)
+    {
+        /* skip times of multifunction buttons in group.*/
+        mfbd_mbtn_skip(_pbtn_group, times);
+    }
+#endif
+
+}
+
+
 /**
  * @brief reset all buttons params in the group.
  *
diff --git a/mfbd.h b/mfbd.h
index e6c825b..b5bb40f 100644
--- a/mfbd.h
+++ b/mfbd.h
@@ -13,6 +13,7 @@
  * 2022-09-07     smartmx      add default define apis.
  * 2023-03-15     smartmx      add state declaration.
  * 2023-07-03     smartmx      add Section Definition option.
+ * 2023-07-15     smartmx      add skip function.
  *
  */
 
@@ -33,7 +34,7 @@ typedef enum
 #define MFBD_DOWN_CODE_NAME(NAME)                       NAME##_DOWN_CODE                /* when using tbtn/nbtn default define api, this is down-code name. */
 #define MFBD_UP_CODE_NAME(NAME)                         NAME##_UP_CODE                  /* when using tbtn/nbtn/mbtn default define api, this is up-code name. */
 #define MFBD_LONG_CODE_NAME(NAME)                       NAME##_LONG_CODE                /* when using nbtn/mbtn default define api, this is long-code name. */
-#define MFBD_DOWN_CODES_NAME(NAME)                      NAME##_DOWN_CODES               /* when using mbtn default define api, this is long-codes name. */
+#define MFBD_DOWN_CODES_NAME(NAME)                      NAME##_DOWN_CODES               /* when using mbtn default define api, this is down-codes name. */
 
 /* tiny button definitions, tiny button functions only support down and up event. */
 #if MFBD_PARAMS_SAME_IN_GROUP
@@ -436,6 +437,8 @@ typedef struct _mfbd_group_struct
 
 extern void mfbd_group_scan(const mfbd_group_t *_pbtn_group);
 
+extern void mfbd_group_skip(const mfbd_group_t *_pbtn_group, mfbd_btn_count_t times);
+
 extern void mfbd_group_reset(const mfbd_group_t *_pbtn_group);
 
 #endif  /* (MFBD_USE_SECTION_DEFINITION == 0) */
diff --git a/mfbd_sd.c b/mfbd_sd.c
index 1575c93..94a1e6c 100644
--- a/mfbd_sd.c
+++ b/mfbd_sd.c
@@ -43,6 +43,8 @@
  * @brief scan all tiny buttons, and report button event value if event happened.
  *
  * @param _pbtn_group is a pointer of mfbd_group_t.
+ * @param _pbtn_info_start is a pointer to the start address in flash with type mfbd_tbtn_info_t.
+ * @param _pbtn_info_end is a pointer to the end address in flash with type mfbd_tbtn_info_t.
  *
  * @return None.
  */
@@ -108,7 +110,8 @@ void mfbd_tbtn_scan(const mfbd_group_t *_pbtn_group, const mfbd_tbtn_info_t *_pb
 /**
  * @brief reset all tiny buttons' params.
  *
- * @param _pbtn_group is a pointer of mfbd_group_t.
+ * @param _pbtn_info_start is a pointer to the start address in flash with type mfbd_tbtn_info_t.
+ * @param _pbtn_info_end is a pointer to the end address in flash with type mfbd_tbtn_info_t.
  *
  * @return None.
  */
@@ -137,6 +140,8 @@ void mfbd_tbtn_reset(const mfbd_tbtn_info_t *_pbtn_info_start, const mfbd_tbtn_i
  * @brief scan all normal buttons, and report button event value if event happened.
  *
  * @param _pbtn_group is a pointer of mfbd_group_t.
+ * @param _pbtn_info_start is a pointer to the start address in flash with type mfbd_nbtn_info_t.
+ * @param _pbtn_info_end is a pointer to the end address in flash with type mfbd_nbtn_info_t.
  *
  * @return None
  */
@@ -234,7 +239,8 @@ void mfbd_nbtn_scan(const mfbd_group_t *_pbtn_group, const mfbd_nbtn_info_t *_pb
 /**
  * @brief reset all normal buttons' params.
  *
- * @param _pbtn_group is a pointer of mfbd_group_t.
+ * @param _pbtn_info_start is a pointer to the start address in flash with type mfbd_nbtn_info_t.
+ * @param _pbtn_info_end is a pointer to the end address in flash with type mfbd_nbtn_info_t.
  *
  * @return None.
  */
@@ -265,6 +271,8 @@ void mfbd_nbtn_reset(const mfbd_nbtn_info_t *_pbtn_info_start, const mfbd_nbtn_i
  * @brief scan all multi-function buttons, and report button event value if event happened.
  *
  * @param _pbtn_group is a pointer of mfbd_group_t.
+ * @param _pbtn_info_start is a pointer to the start address in flash with type mfbd_mbtn_info_t.
+ * @param _pbtn_info_end is a pointer to the end address in flash with type mfbd_mbtn_info_t.
  *
  * @return None.
  */
@@ -403,7 +411,8 @@ void mfbd_mbtn_scan(const mfbd_group_t *_pbtn_group, const mfbd_mbtn_info_t *_pb
 /**
  * @brief reset all multi-function buttons' params.
  *
- * @param _pbtn_group is a pointer of mfbd_group_t.
+ * @param _pbtn_info_start is a pointer to the start address in flash with type mfbd_mbtn_info_t.
+ * @param _pbtn_info_end is a pointer to the end address in flash with type mfbd_mbtn_info_t.
  *
  * @return None.
  */
diff --git a/mfbd_sd.h b/mfbd_sd.h
index 83a4d10..6982157 100644
--- a/mfbd_sd.h
+++ b/mfbd_sd.h
@@ -26,7 +26,7 @@ typedef enum
 #define MFBD_DOWN_CODE_NAME(NAME)                       NAME##_DOWN_CODE                /* when using tbtn/nbtn default define api, this is down-code name. */
 #define MFBD_UP_CODE_NAME(NAME)                         NAME##_UP_CODE                  /* when using tbtn/nbtn/mbtn default define api, this is up-code name. */
 #define MFBD_LONG_CODE_NAME(NAME)                       NAME##_LONG_CODE                /* when using nbtn/mbtn default define api, this is long-code name. */
-#define MFBD_DOWN_CODES_NAME(NAME)                      NAME##_DOWN_CODES               /* when using mbtn default define api, this is long-codes name. */
+#define MFBD_DOWN_CODES_NAME(NAME)                      NAME##_DOWN_CODES               /* when using mbtn default define api, this is down-codes name. */
 
 #if defined(__CC_ARM) || defined(__CLANG_ARM)           /* ARM Compiler */
 #define __MFBD_SECTION(x)                               __attribute__((section(x)))