diff --git a/libraries/oleddrv/font.c b/libraries/oleddrv/font.c
deleted file mode 100644
--- a/libraries/oleddrv/font.c
+++ /dev/null
@@ -1,43 +0,0 @@
-/*******************************************************************************
-* File Name          : font.c
-* Author             : lxyppc
-* Version            : V1.0
-* Date               : 10-01-21
-* Description        : Font data file
-*******************************************************************************/
-
-/* Includes ------------------------------------------------------------------*/
-#include "DrawText.h"
-#include "font.h"
-
-/* Private typedef -----------------------------------------------------------*/
-/* Private define ------------------------------------------------------------*/
-/* Private macro -------------------------------------------------------------*/
-/* Private variables ---------------------------------------------------------*/
-/* Private function prototypes -----------------------------------------------*/
-/* Private functions ---------------------------------------------------------*/
-
-/* Install font data for "ËÎÌ塡СÎå"*/
-#include ".\Font\SongSmall5.c"
-
-unsigned long SongSmall5_DrawChar(pfnDrawBlock_t DrawBlock,Pos_t x, Pos_t y,unsigned int ch)
-{
-  if(DrawBlock == 0){
-    if(ch>0x7f){
-      if(x) return SongSmall5_Chinese_Width(ch);
-      else  return SongSmall5_Chinese_Height(ch);
-    }else{
-      if(x) return SongSmall5_English_Width(ch);
-      else  return SongSmall5_English_Height(ch);
-    }
-  }
-  if(ch>0x7F){
-    DrawBlock(x,y,12,12,SongSmall5_Chinese[ch-0x80].data);
-    return SongSmall5_Chinese_Width(ch);
-  }else if(ch>0x1F){
-    DrawBlock(x,y,6,12,SongSmall5_English[ch-0x20].data);
-  }else{
-    DrawBlock(x,y,6,12,SongSmall5_English[0x7F-0x20].data);
-  }
-  return SongSmall5_English_Width(ch);
-}