diff --git a/MDK-ARM/LWIP.uvguix.29643 b/MDK-ARM/LWIP.uvguix.29643
index d1ed69e..db69ede 100644
--- a/MDK-ARM/LWIP.uvguix.29643
+++ b/MDK-ARM/LWIP.uvguix.29643
@@ -1822,7 +1822,7 @@
         <Name>Build</Name>
         <Buttons>
           <Len>968</Len>
-          <Data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ata>
+          <Data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ata>
         </Buttons>
         <OriginalItems>
           <Len>583</Len>
@@ -1838,7 +1838,7 @@
         <Name>Debug</Name>
         <Buttons>
           <Len>2373</Len>
-          <Data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ata>
+          <Data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ata>
         </Buttons>
         <OriginalItems>
           <Len>898</Len>
@@ -1901,7 +1901,7 @@
       </Doc>
       <Doc>
         <Name>..\usersrc\config.c</Name>
-        <ColumnNumber>1</ColumnNumber>
+        <ColumnNumber>0</ColumnNumber>
         <TopLine>31</TopLine>
         <CurrentLine>48</CurrentLine>
         <Folding>1</Folding>
diff --git a/usersrc/config.c b/usersrc/config.c
index 6dc4fe8..e223829 100644
--- a/usersrc/config.c
+++ b/usersrc/config.c
@@ -8,15 +8,22 @@
 #include "zflash.h"
 #include "zboard.h"
 
+#define FLASH_WRITE(data)                                      \
+  status = FlashWrite(config_flash_write_start_address, data); \
+  if (status != HAL_OK)                                        \
+  {                                                            \
+    printf("flash write error, status:%d\r\n", status);        \
+    return -2;                                                 \
+  }                                                            \
+  config_flash_write_start_address += 4;
+
 #define CONFIG_SIZE ((sizeof(config_t) / 4) + ((sizeof(config_t) % 4) > 0 ? 1 : 0))
 
 static config_t s_config;
-
 static bool s_is_first_init = false;
 
 void config_init(void)
 {
-#if 1
   IP4_ADDR((ip4_addr_t *)&s_config.ip, 192, 168, 8, 10);
   IP4_ADDR((ip4_addr_t *)&s_config.gw, 192, 168, 8, 1);
   IP4_ADDR((ip4_addr_t *)&s_config.netmask, 255, 255, 255, 0);
@@ -24,8 +31,6 @@ void config_init(void)
   s_config.obtaining_ip_mode = OBTAINING_IP_MODE_DHCP; // dhcp
   s_config.mask = 1;                                   //
 
-#endif
-
   if (config_flash_write() < 0)
   {
     printf("flash write config error\r\n");
@@ -40,7 +45,9 @@ void config_init(void)
   /*dumpconfig*/
   config_dump_config();
 }
+
 bool config_is_first_init(void) { return s_is_first_init; }
+
 void config_dump_config(void)
 {
   printf("=================config================\r\n");
@@ -51,18 +58,6 @@ void config_dump_config(void)
   printf("= config localport: %u\r\n", s_config.localport);
 }
 
-bool config_update(void)
-{
-  // if (stmflash_write(FLASH_SAVE_ADDR, (uint32_t *)&s_config, CONFIG_SIZE) < 0)
-  // {
-  //   printf("flash write config error\r\n");
-  //   return false;
-  // }
-
-  // config_dump_config();
-  return true;
-}
-
 void config_flash_read(void)
 {
   uint32_t config_flash_write_start_address = FLASH_START_ADDRESS;
@@ -88,47 +83,13 @@ int8_t config_flash_write(void)
     printf("flash erase error, status:%d\r\n", status);
     return -1;
   }
+  
+  FLASH_WRITE(s_config.mask);
+  FLASH_WRITE(s_config.obtaining_ip_mode);
+  FLASH_WRITE(s_config.ip);
+  FLASH_WRITE(s_config.gw);
+  FLASH_WRITE(s_config.netmask);
+  FLASH_WRITE(s_config.localport);
 
-  status = FlashWrite(config_flash_write_start_address + 0, s_config.mask);
-  if (status != HAL_OK)
-  {
-    printf("flash write error, status:%d\r\n", status);
-    return -2;
-  }
-
-  status = FlashWrite(config_flash_write_start_address + 4, s_config.obtaining_ip_mode);
-  if (status != HAL_OK)
-  {
-    printf("flash write error, status:%d\r\n", status);
-    return -3;
-  }
-
-  status = FlashWrite(config_flash_write_start_address + 8, s_config.ip);
-  if (status != HAL_OK)
-  {
-    printf("flash write error, status:%d\r\n", status);
-    return -4;
-  }
-
-  status = FlashWrite(config_flash_write_start_address + 12, s_config.gw);
-  if (status != HAL_OK)
-  {
-    printf("flash write error, status:%d\r\n", status);
-    return -5;
-  }
-
-  status = FlashWrite(config_flash_write_start_address + 16, s_config.netmask);
-  if (status != HAL_OK)
-  {
-    printf("flash write error, status:%d\r\n", status);
-    return -6;
-  }
-
-  status = FlashWrite(config_flash_write_start_address + 20, s_config.localport);
-  if (status != HAL_OK)
-  {
-    printf("flash write error, status:%d\r\n", status);
-    return -7;
-  }
   return 0;
 }
diff --git a/usersrc/config.h b/usersrc/config.h
index e537571..2bc8957 100644
--- a/usersrc/config.h
+++ b/usersrc/config.h
@@ -20,7 +20,6 @@ typedef struct
 } config_t;
 
 void config_init(void);
-bool config_update(void);
 void config_dump_config(void);
 config_t *config_get(void);
 bool config_is_first_init(void);