LCD1602C驱动程序 for 51单片机

LCD1602 C语言驱动程序  没有公告

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             LCD1602 C语言驱动程序          【字体：小 大】

      LCD1602 C语言驱动程序

      作者：不详    文章来源：JustSMT.com    点击数： 0     更新时间：2006-6-15    JustSMT.COM


      //lcd1602 drive program
      //for 51 mcu
      //designed by zhaoliang
      //2005-6-14 20:16
      ＃i nclude <reg51.hJ>
      /********************************************************************/
      //lcd part
      #define  LINE1     0
      #define  LINE2     1

      #define  LINE1_HEAD    0x80
      #define  LINE2_HEAD    0xC0
      #define  LCD_DELAY_TIME   40
      #define  DATA_MODE    0x38
      #define  OPEN_SCREEN    0x0C
      #define  DISPLAY_ADDRESS   0x80
      #define  CLEARSCREEN    LCD_en_command(0x01)
      //common part 
      #define  HIGH   1
      #define  LOW    0
      #define  TRUE    1
      #define  FALSE    0
      #define  ZERO    0 
      #define  MSB    0x80
      #define  LSB    0x01
      /*******************************************************************/
      //change this part at different board
      #define  LCDIO     P2
      sbit LCD1602_RS=P0^7;   //data command select  1 data  0 command  pin 4 
      sbit LCD1602_RW=P0^6;   //read write select   1 read   0 write     pin 5
      sbit LCD1602_EN=P0^5;   //LCD enable signal             pin 6
      /********************************************************************/
      void LCD_delay(void);//lcd delay function 
      void LCD_en_command(unsigned char command);//write command function
      void LCD_en_dat(unsigned char temp);//write data function
      void LCD_set_xy( unsigned char x, unsigned char y );//set display address 
      function
      void LCD_write_char( unsigned x,unsigned char y,unsigned char dat);//write 
      lcd a character function
      void LCD_write_string(unsigned char X,unsigned char Y,unsigned char