diff --git a/usersrc/zflash.c b/usersrc/zflash.c
index a0708e0..c3b4cd9 100644
--- a/usersrc/zflash.c
+++ b/usersrc/zflash.c
@@ -1 +1,37 @@
-#include "zflash.h"
\ No newline at end of file
+#include "zflash.h"
+
+HAL_StatusTypeDef FlashErase(void)
+{
+  HAL_StatusTypeDef status;
+  uint32_t sector_error_point;
+  FLASH_EraseInitTypeDef flash_erase_structer = {
+      //
+      .TypeErase = FLASH_TYPEERASE_SECTORS, //
+      .Sector = FLASH_SECTOR_7,             //
+      .NbSectors = 1,                       //
+      .VoltageRange = FLASH_VOLTAGE_RANGE_3 //
+  };
+
+  HAL_FLASH_Unlock(); // 解锁
+  __HAL_FLASH_CLEAR_FLAG(FLASH_FLAG_EOP | FLASH_FLAG_OPERR | FLASH_FLAG_WRPERR |
+                         FLASH_FLAG_PGAERR | FLASH_FLAG_PGPERR | FLASH_FLAG_PGSERR); // 清除一些错误标志
+
+  status = HAL_FLASHEx_Erase(&flash_erase_structer, &sector_error_point);
+  HAL_FLASH_Lock(); // 上锁
+  return status;
+}
+
+// 写数据
+void FlashWrite(uint32_t StartAddress, uint32_t data)
+{
+  // 可以添加一些 StartAddress地址 是否有效的判断
+  HAL_FLASH_Unlock(); // 解锁
+  HAL_FLASH_Program(FLASH_TYPEPROGRAM_WORD, StartAddress, data);
+  HAL_FLASH_Lock(); // 上锁
+}
+
+// 读数据
+uint32_t FlashRead(uint32_t StartAddress)
+{
+  return *(uint32_t *)StartAddress;
+}
\ No newline at end of file
diff --git a/usersrc/zflash.h b/usersrc/zflash.h
index 7b9637e..cbdf29c 100644
--- a/usersrc/zflash.h
+++ b/usersrc/zflash.h
@@ -1 +1,8 @@
-#pragma once
\ No newline at end of file
+#pragma once
+#include "main.h"
+
+#define FLASH_START_ADDRESS 0x08078000
+
+HAL_StatusTypeDef FlashErase(void);
+void FlashWrite(uint32_t StartAddress, uint32_t data);
+uint32_t FlashRead(uint32_t StartAddress);