diff --git a/include/HFlashServer.h b/include/HFlashServer.h
index 53c95f9..008056f 100644
--- a/include/HFlashServer.h
+++ b/include/HFlashServer.h
@@ -8,8 +8,15 @@
 #ifndef __H_FLASH_SERVER_H__
 #define __H_FLASH_SERVER_H__
 
+// #define USE_STD_MEM
+
 #include <stdint.h>
 
+#ifndef USE_STD_MEM
+#include "HDSendBuffer.h"
+#endif
+
+
 ///< Flash块大小, 按块操作, 2的幂关系
 #ifndef HFLASH_BLOCK_SIZE
 #define HFLASH_BLOCK_SIZE  (4096)
@@ -17,12 +24,20 @@
 
 ///< 获取缓存内存, 需要能申请到大于等于Flash一块大小
 #ifndef HFLASH_MALLOC
+#ifdef USE_STD_MEM
 #define HFLASH_MALLOC(size) malloc(size)
+#else
+#define HFLASH_MALLOC(size) HDSendBufferGet(size)
+#endif
 #endif
 
 ///< 释放缓存
 #ifndef HFLASH_FREE
+#ifdef USE_STD_MEM
 #define HFLASH_FREE(ptr) free(ptr)
+#else
+#define HFLASH_FREE(ptr) HDSendBufferFree(ptr)
+#endif
 #endif
 
 ///< 定时器ID
@@ -133,7 +148,8 @@ void HFlashSetProtectBackupAddr(HFlashAddr_t addr, uint32_t size);
 void HFlashInitCheck();
 
 /**
- * @brief HFlashRegister 注册地址到页表
+ * @brief HFlashRegister 注册地址到页表, 如果大小和之前不一致会丢弃原数据更新
+ * 但保护区域是特殊的, 请勿缩小保护区域的使用大小
  * @param addr 地址
  * @param size 该地址占用的大小
  */
@@ -235,6 +251,26 @@ typedef void (*HFlashUpdateVersionCallback)(HFlashAddr_t addr, uint16_t oldVersi
  */
 void HFlashUpdateVersion(HFlashAddr_t addr, uint16_t newVersion, HFlashUpdateVersionCallback callback, void *userData);
 
+/**
+ * @brief HFlashDeleteFile 删除地址内容
+ * @param addr 需要注册的地址
+ */
+void HFlashDeleteData(HFlashAddr_t addr);
+
+/**
+ * @brief HFlashGetUseSize 获取Flash数据的使用大小
+ * @param addr 需要注册的地址
+ * @return 使用大小
+ */
+uint32_t HFlashGetUseSize(HFlashAddr_t addr);
+
+/**
+ * @brief HFlashGetSize 获取Flash数据的大小
+ * @param addr 需要注册的地址
+ * @return 大小
+ */
+uint32_t HFlashGetSize(HFlashAddr_t addr);
+
 /**
  * @brief HFlashGetCrc32 获取Flash数据的CRC32值
  * @param addr 需要注册的地址
diff --git a/src/HFlashServer.c b/src/HFlashServer.c
index 07ec161..6dbfb6a 100644
--- a/src/HFlashServer.c
+++ b/src/HFlashServer.c
@@ -5,8 +5,13 @@
 #include "HVector.h"
 #include "HTimer.h"
 
+#ifndef USE_STD_MEM
+#include "HDSendBuffer.h"
+#include "HSCrc32.h"
+#endif
 
-#if 1
+
+#ifdef USE_STD_MEM
 #include <nmmintrin.h>
 static uint32_t sCrcValue;
 void HSCrc32Reset()
@@ -29,8 +34,11 @@ uint32_t HSCrc32Get()
 // 计算最小值
 #define FLASH_MIN(type, a, b) ((b) ^ (((a) ^ (b)) & (-(type)((a) < (b)))))
 
-// #define FATAL_ERROR(format, ...) LogE(format, ##__VA_ARGS__); while(1);
+#ifdef USE_STD_MEM
 #define FATAL_ERROR(format, ...) LogE(format, ##__VA_ARGS__);
+#else
+#define FATAL_ERROR(format, ...) LogE(format, ##__VA_ARGS__); while(1);
+#endif
 
 // 最大热度
 #define MAX_HEAT ((1 << 4) - 1)
@@ -74,6 +82,7 @@ static HVECTOR_DEFINE32(sNeedBackupOffset, 10);
 
 
 static uint8_t RestoreBackup(HFlashAddr_t srcAddr, HFlashAddr_t dstAddr, uint32_t size);
+static void StartBackupTimer();
 
 ///< 检查地址是否在双备份保护区内
 static uint8_t IsProtect(HFlashAddr_t addr, uint32_t size)
@@ -241,7 +250,11 @@ static void SyncBackup()
     for (uint16_t i = 0; i < HVectorGetUseLen(sNeedBackupOffset); ++i) {
         const uint32_t addr = HVectorGetData(sNeedBackupOffset, i);
         const uint32_t destAddr = sInfo.protectBackupAddr + (addr - sInfo.protectAddr);
-        RestoreBackup(addr, destAddr, HFLASH_BLOCK_SIZE);
+        if (RestoreBackup(addr, destAddr, HFLASH_BLOCK_SIZE) == 0) {
+            LogE("RestorePage faild, addr[0x%08x]", addr);
+            StartBackupTimer();
+            return ;
+        }
     }
 
     HVectorClear(sNeedBackupOffset);
@@ -338,7 +351,8 @@ static uint32_t GetFlashCrc32(HFlashAddr_t addr, uint32_t size)
 
 static uint8_t RestoreBackup(HFlashAddr_t srcAddr, HFlashAddr_t dstAddr, uint32_t size)
 {
-    uint8_t *buff = (uint8_t *)HFLASH_MALLOC(HFLASH_BLOCK_SIZE);
+    const uint16_t mallocSize = 1024;
+    uint8_t *buff = (uint8_t *)HFLASH_MALLOC(mallocSize);
     if (buff == NULL) {
         LogE("addr[0x%08x], write size[%d] malloc faild", srcAddr, size);
         return 0;
@@ -347,8 +361,8 @@ static uint8_t RestoreBackup(HFlashAddr_t srcAddr, HFlashAddr_t dstAddr, uint32_
     uint8_t result = 0;
     uint32_t i = 0;
     uint32_t remain = 0;
-    for (; i < size; i += HFLASH_BLOCK_SIZE) {
-        remain = FLASH_MIN(uint32_t, size - i, HFLASH_BLOCK_SIZE);
+    for (; i < size; i += mallocSize) {
+        remain = FLASH_MIN(uint32_t, size - i, mallocSize);
         result = result || ReadFlash(srcAddr + i, buff, remain) == 0;
         result = result || WriteFlash(dstAddr + i, buff, remain) == 0;
 
@@ -504,6 +518,7 @@ static uint8_t ScanPage(uint8_t (*call)(uint32_t index, HFlashPageInfo *info, vo
     return result;
 }
 
+///< 检查是否重叠, 重叠返回1
 static uint8_t _CreatePageInfoHelper(uint32_t index, HFlashPageInfo *info, void *userData)
 {
     HFlashPageInfo *cache = (HFlashPageInfo *)userData;
@@ -734,13 +749,33 @@ void HFlashRegister(HFlashAddr_t addr, uint32_t size)
         return ;
     }
 
+    // 检查是否需要更新页表存储的大小
+    if (size != cache->info.size) {
+        LogD("Update addr[0x%08x] size[%d], useSize[%d], oldSize[%d]", addr, size, cache->info.useSize, cache->info.size);
+        cache->info.size = size;
+
+        // 检查页表地址是否和当前页表地址范围内存在重叠
+        if (ScanPage(_CreatePageInfoHelper, &cache->info)) {
+            FATAL_ERROR("addr[0x%08x] size[%d] exist range Error", addr, size);
+            return ;
+        }
+
+        cache->waitWrite = 1;
+    }
+
+    // 已使用空间大于容量, 页表数据异常或者容量被缩小, 丢弃数据, 如果是保护区域下面会恢复
+    if (cache->info.useSize > size) {
+        LogE("addr[0x%08x] useSize[%d] > size[%d]", addr, cache->info.useSize, size);
+        cache->info.useSize = 0;
+    }
+
     // 检查是否在保护区域, 不是保护区域不需要检查crc校验
     if (IsProtect(addr, size) == 0) {
         return ;
     }
 
     // 检查保护区域的crc是否相同
-    if (GetFlashCrc32(addr, size) == cache->info.crc32) {
+    if (GetFlashCrc32(addr, cache->info.useSize) == cache->info.crc32) {
         return ;
     }
 
@@ -749,7 +784,7 @@ void HFlashRegister(HFlashAddr_t addr, uint32_t size)
     RestoreBackup(sInfo.protectBackupAddr + (cache->info.addr - sInfo.protectAddr), cache->info.addr, cache->info.size);
 
     // 如果恢复后还校验失败, 那就恢复对应页表
-    const uint32_t contentCrc = GetFlashCrc32(cache->info.addr, cache->info.size);
+    const uint32_t contentCrc = GetFlashCrc32(cache->info.addr, cache->info.useSize);
     if (contentCrc == cache->info.crc32) {
         return ;
     }
@@ -975,6 +1010,40 @@ void HFlashUpdateVersion(HFlashAddr_t addr, uint16_t newVersion, HFlashUpdateVer
     }
 }
 
+void HFlashDeleteData(HFlashAddr_t addr)
+{
+    HFlashCacheInfo *cache = FindCache(addr);
+    if (cache == NULL) {
+        FATAL_ERROR("addr[0x%08x] not register", addr);
+        return ;
+    }
+
+    cache->info.useSize = 0;
+    WriteCachePage(cache);
+}
+
+uint32_t HFlashGetUseSize(HFlashAddr_t addr)
+{
+    HFlashCacheInfo *cache = FindCache(addr);
+    if (cache == NULL) {
+        FATAL_ERROR("addr[0x%08x] not register", addr);
+        return 0;
+    }
+
+    return cache->info.useSize;
+}
+
+uint32_t HFlashGetSize(HFlashAddr_t addr)
+{
+    HFlashCacheInfo *cache = FindCache(addr);
+    if (cache == NULL) {
+        FATAL_ERROR("addr[0x%08x] not register", addr);
+        return 0;
+    }
+
+    return cache->info.size;
+}
+
 uint32_t HFlashGetCrc32(HFlashAddr_t addr)
 {
     HFlashCacheInfo *cache = FindCache(addr);