lcd.#1

80c51F020的开发程序 包括ADC DDS DAC

//////////////////////////////
////lcd.c
////by ts
///2007.9.3
///version 1
/////////////////////////////

#include<intrins.h>
#include "common.h"
#include "lcd.h"



void LCD_display(unsigned char code_bit,unsigned char flag)
{    
    unsigned char temp_1,temp_2;
	 unsigned char a;
	unsigned char j;
    temp_1=code_bit;
	temp_2=code_bit; 
	for(a=0;a<8;a++)
	 {
	    LCD_clk=0;
        temp_1=temp_2;
	    temp_1=temp_1&0x80;
		if(temp_1==0x00)
        {        
		  LCD_data=0;
        }
		else
       {
		LCD_data=1;
       }
		LCD_clk=1;
        temp_2=temp_2<<1;
     }                    
     if(flag==0x01)
     { 	  
                   
	      RS=0;
		  RW=0;		   	
		  E=1;
		  	j=2000;
			while(j-->1);		  
		  E=0;
		  j=4000;
	     while(j-->1);
		}
		else
		{	    
			RS=1;
			RW=0;
			E=1;
	     	j=2000;
			while(j-->1);					
			E=0;
		   j=4000;
			while(j-->1);
		}	
	}