diff --git a/libraries/oleddrv/DrawText.c b/libraries/oleddrv/DrawText.c
new file mode 100644
--- /dev/null
+++ b/libraries/oleddrv/DrawText.c
@@ -0,0 +1,197 @@
+/*******************************************************************************
+* File Name          : DrawText.c
+* Author             : lxyppc
+* Version            : V1.0
+* Date               : 10-01-21
+* Description        : Text output implemention file
+*******************************************************************************/
+
+/* Includes ------------------------------------------------------------------*/
+#include "DrawText.h"
+#include "font.h"
+#include "SSD1303.h"
+
+/* Private typedef -----------------------------------------------------------*/
+/* Private define ------------------------------------------------------------*/
+/* Private macro -------------------------------------------------------------*/
+/* Private variables ---------------------------------------------------------*/
+/* Private function prototypes -----------------------------------------------*/
+/* Private functions ---------------------------------------------------------*/
+Pos_t  DrawChar(Device* pDev, Pos_t x, Pos_t y, char ch);
+
+/*******************************************************************************
+* Function Name  : TextOut
+* Description    : Output a text at specify position
+* Input          : Device*          device
+*                  Pos_t            x location
+*                  Pos_t            y location
+*                  char*            text
+*                  Size_t           text length
+* Output         : None
+* Return         : End x position for the last character
+*******************************************************************************/
+Pos_t  TextOut(Device* pDev, Pos_t x, Pos_t y, const char* text, Size_t len)
+{
+  while(*text && len){
+    x += DrawChar(pDev,x,y,*text);
+    text++;
+    len--;
+  }
+  return x;
+}
+
+/*******************************************************************************
+* Function Name  : HightLightArea
+* Description    : Hight Light the specify Area
+* Input          : Device*          device
+*                  Pos_t            x location
+*                  Pos_t            y location
+                   Pos_t            width
+*                  Pos_t            length
+* Output         : None
+* Return         : End x position for the last character
+*******************************************************************************/
+unsigned long HightLightArea(
+  Pos_t x,
+  Pos_t y,
+  Pos_t cx,
+  Pos_t cy)
+{
+  return SSD1303_DrawBlock(x,y,cx,cy,0);
+}
+
+/*******************************************************************************
+* Function Name  : TextOut_HighLight
+* Description    : Output a text at specify position, then hight them
+* Input          : Device*          device
+*                  Pos_t            x location
+*                  Pos_t            y location
+*                  char*            text
+*                  Size_t           text length
+* Output         : None
+* Return         : End x position for the last character
+*******************************************************************************/
+unsigned long  TextOut_HighLight(
+  Device* pDev,
+  Pos_t x,
+  Pos_t y,
+  const char* text,
+  Size_t len)
+{
+  Pos_t res = TextOut(pDev, x, y, text, len);
+  SSD1303_DrawBlock(x,y,res-x,GetFontTextHeight(pDev->pfnFont,*text),0);
+  return res;
+}
+
+/*******************************************************************************
+* Function Name  : SpecTextOut_HighLight
+* Description    : Output a specify text at specify position then high light them
+* Input          : Device*          device
+*                  Pos_t            x location
+*                  Pos_t            y location
+*                  const FontData*  text dotmatrix data
+*                  Size_t           text length
+* Output         : None
+* Return         : End x position for the last character
+*******************************************************************************/
+unsigned long SpecTextOut_HighLight(
+  Device* pDev,
+  Pos_t x,
+  Pos_t y,
+  const pfnFontDrawChar pfnFont,
+  Size_t len)
+{
+  Pos_t res = SpecTextOut(pDev, x, y, pfnFont, len);
+  SSD1303_DrawBlock(x,y,res-x,GetFontTextHeight(pfnFont,0),0);
+  return res;
+}
+
+/*******************************************************************************
+* Function Name  : SpecTextOut
+* Description    : Output a specify text at specify position
+* Input          : Device*          device
+*                  Pos_t            x location
+*                  Pos_t            y location
+*                  const FontData*  text dotmatrix data
+*                  Size_t           text length
+* Output         : None
+* Return         : End x position for the last character
+*******************************************************************************/
+Pos_t SpecTextOut(Device* pDev, Pos_t x, Pos_t y,const pfnFontDrawChar pfnFont, Size_t len)
+{
+  pfnFontDrawChar old = pDev->pfnFont;
+  pDev->pfnFont = pfnFont;
+  for(unsigned long i=0;i<len;i++){
+    x += DrawChar(pDev,x,y,i);
+  }
+  pDev->pfnFont = old;
+  return x;
+}
+
+/*******************************************************************************
+* Function Name  : DrawChar
+* Description    : Output a character at specify position
+* Input          : Device*          device
+*                  Pos_t            x location
+*                  Pos_t            y location
+*                  char             character
+* Output         : None
+* Return         : End x position for the last character
+*******************************************************************************/
+Pos_t  DrawChar(Device* pDev, Pos_t x, Pos_t y, char ch)
+{
+  return pDev->pfnFont(pDev->pDevProp->pfnDrawBlok,x,y,(unsigned char)ch);
+  //FontData ft = &pDev->font[ch];
+  //pDev->pDevProp->pfnDrawBlok(x,y,ft->width,ft->height,ft->data);
+  //return ft->width;
+}
+
+/*******************************************************************************
+* Function Name  : InitialDevice
+* Description    : Initialize the device strcture
+* Input          : const DeviceProp*  device properties
+*                  const FontData*    font
+* Output         : Device*          device pointer
+* Return         : End x position for the last character
+*******************************************************************************/
+void  InitialDevice(Device* pDev, const DeviceProp* pDevProp, pfnFontDrawChar pfnFont)
+{
+  pDev->pDevProp = pDevProp;
+  pDev->pfnFont = pfnFont;
+  pDev->curX = 0;
+  pDev->curY = 0;
+}
+
+/*******************************************************************************
+* Function Name  : SetPoint
+* Description    : Draw a point at specify position
+* Input          : Device*          device
+*                  Pos_t            x location
+*                  Pos_t            y location
+* Output         : None
+* Return         : End x position for the last character
+*******************************************************************************/
+unsigned long SetPoint(
+  Device* pDev,
+  Pos_t x,
+  Pos_t y)
+{
+  return pDev->pDevProp->pfnDrawPoint(x,y,1);
+}
+
+/*******************************************************************************
+* Function Name  : ClearPoint
+* Description    : Clear a point at specify position
+* Input          : Device*          device
+*                  Pos_t            x location
+*                  Pos_t            y location
+* Output         : None
+* Return         : End x position for the last character
+*******************************************************************************/
+unsigned long ClearPoint(
+  Device* pDev,
+  Pos_t x,
+  Pos_t y)
+{
+  return pDev->pDevProp->pfnDrawPoint(x,y,0);
+}