diff --git a/include/HFlashServer.h b/include/HFlashServer.h
index ac18dcc..bbe7a8e 100644
--- a/include/HFlashServer.h
+++ b/include/HFlashServer.h
@@ -369,9 +369,10 @@ uint32_t HFlashGetUseSize(HFlashAddr_t addr);
  * @brief HFlashSetUseSize 设置Flash数据的使用大小
  * @param addr 需要注册的地址
  * @param size 使用大小
+ * @param delayCrc32 是否延迟计算CRC 1: 是 0: 否
  * @return 1: 设置成功 0: 设置失败
  */
-uint8_t HFlashSetUseSize(HFlashAddr_t addr, uint32_t size);
+uint8_t HFlashSetUseSize(HFlashAddr_t addr, uint32_t size, uint8_t delayCrc32);
 
 /**
  * @brief HFlashGetSize 获取Flash数据的大小
diff --git a/src/HFlashMem.c b/src/HFlashMem.c
index 8a75fe8..0b36036 100644
--- a/src/HFlashMem.c
+++ b/src/HFlashMem.c
@@ -59,6 +59,13 @@ static HTimer_t sCheckTimer = HTIMER_INVALID;
 static void WatiErase();
 static void CheckSyncCache();
 
+static void ResetCacheState()
+{
+    if (sOpts && sOpts->cache && sOpts->cacheSize) {
+        memset(sOpts->cache, 0, sizeof(HFlashMemCache) * sOpts->cacheSize);
+    }
+}
+
 // 对齐页地址, 向下取整
 static inline uint32_t Align4K(uint32_t addr) {
     return addr & ~(HFLASH_BLOCK_SIZE - 1);
@@ -627,6 +634,8 @@ void HFlashMemInit(HFlashMemOpts *opts)
         HTimerRemove(sCheckTimer);
         sCheckTimer = HTIMER_INVALID;
     }
+
+    ResetCacheState();
 }
 
 const HFlashMemOpts *HFlashMemGetOpt()
@@ -787,5 +796,6 @@ void HFlashMemFreeCache()
         HTimerRemove(sCheckTimer);
         sCheckTimer = HTIMER_INVALID;
     }
+    ResetCacheState();
     memset(&sInfo, 0, sizeof(sInfo));
 }
diff --git a/src/HFlashServer.c b/src/HFlashServer.c
index 9c81b3c..84dc63a 100644
--- a/src/HFlashServer.c
+++ b/src/HFlashServer.c
@@ -1898,7 +1898,7 @@ void HFlashDefaultUpdateVersion(HFlashAddr_t addr, uint16_t oldVersion, uint16_t
 
 void HFlashDeleteData(HFlashAddr_t addr)
 {
-    HFlashSetUseSize(addr, 0);
+    HFlashSetUseSize(addr, 0, 0);
 }
 
 uint32_t HFlashGetUseSize(HFlashAddr_t addr)
@@ -1912,7 +1912,7 @@ uint32_t HFlashGetUseSize(HFlashAddr_t addr)
     return cache->info.useSize;
 }
 
-uint8_t HFlashSetUseSize(HFlashAddr_t addr, uint32_t size)
+uint8_t HFlashSetUseSize(HFlashAddr_t addr, uint32_t size, uint8_t delayCrc32)
 {
     HFlashCacheInfo *cache = FindCache(addr);
     if (cache == NULL) {
@@ -1926,7 +1926,7 @@ uint8_t HFlashSetUseSize(HFlashAddr_t addr, uint32_t size)
     }
 
     cache->info.useSize = size;
-    cache->info.crc32 = GetFlashCrc32(addr, size);
+    cache->waitCrc = !!delayCrc32;
     WriteCachePage(cache);
     if (size) {
         AddBackupAddr(addr, size);
diff --git a/src/HTimer.c b/src/HTimer.c
index d0bc356..bc04684 100644
--- a/src/HTimer.c
+++ b/src/HTimer.c
@@ -120,6 +120,7 @@ uint8_t HTimerRegisterTimerInfo(uint8_t id, HTimerInfo *info, uint16_t infoLen)
         return 0;
     }
 
+    memset(info, 0, infoLen);
     sTimeRegisters[id].timers = info;
     sTimeRegisters[id].len = infoLen;
     sTimeRegisters[id].enable = 1;