display.c

利用ATmega64实现了对测温芯片DS18B20

#include "display.h"
#include "hardware.h"



void LCD_display(uint8 disdata)
{
//add lcd display code
  uint8 tmp;
  uint8 tmp_addr;

  tmp=disdata;
  tmp_addr=0x80|DDram_Adr;
  Write_data(tmp_addr,tmp);

  switch(DDram_Adr)
  {
    case 0x0F:  DDram_Adr=0x40;
	            break;

    case 0x4F:  LCD_clear();
	            DDram_Adr=0x00;
	            break;   
    
	default:  DDram_Adr++;
	          break;
  }

}




void LCD_clear()
{
//add cursor control code
  Write_command(0x01);  //Clear display
}