heyang.txt

SJA1000的驱动开发包

#include "REG66x.h"
#include "MATH.h"
#include "intrins.h"

#define  OPENBZ	  	 0XAA							
#define  CLOSEBZ	 0X55
sbit  LCD_E    =  P1^1;
sbit  LCD_RW   =  P1^2;
sbit  LCD_CS1  =  P1^3;
sbit  LCD_CS2  =  P1^4;
sbit  LCD_RS   =  P1^5;

#define uint        unsigned int
#define uchar       unsigned char

uchar  HB1=0,HB2=0,HB3=0,HB4=0;
uint   parameter_number;

//void  write_code(unsigned char w_code);
//void  write_data(unsigned char wdata);
//void  write_cs1(unsigned char cs1_data);
//void  write_cs2(unsigned char cs2_data);
//void  set_xy(unsigned char x_page,unsigned char y);
//void  set_xytemp(unsigned char x_page,unsigned char y);
//void  SetOnOff(unsigned char onoff);
//#include<lcd7.h>
void delay_10us(void)
	{
  	 uint i;
	 for(i=30;i>0;i--);

	}
void delay(uint n)
	{
	uint i=0;
	for(i=n;i>0;i--)
	   {
	     delay_10us();
        }
 	}
//------------------------------CPU写命令to LCD---------------------------------
void WR_comman(unsigned char da_data)
 	{
    LCD_E=0;
    LCD_RS=0;
    LCD_RW=0;
    LCD_CS1=1;
	LCD_CS2=1;
  	P0=da_data;
	LCD_E=1;
    LCD_E=0;
    LCD_RS=0;
	LCD_RW=1;
	LCD_E=0;
	LCD_CS1=0;
	LCD_CS2=0;

  	}
//------------------------------CPU写数据to LCD---------------------------------
void WR_data(unsigned char da_data)
	{
    LCD_E=0;
    LCD_RS=1;
    LCD_RW=0;
    LCD_CS1=1;
	LCD_CS2=1;
  	P0=da_data;
	LCD_E=1;
    LCD_E=0;
    LCD_RS=0;
	LCD_RW=1;
	LCD_E=0;
	LCD_CS1=0;
	LCD_CS2=0;
  	}
//------------------------------CPU写数据to LCD_CS1---------------------------------
void cs1_data(unsigned char da_data)
	{
    LCD_E=0;
    LCD_RS=1;
    LCD_RW=0;
    LCD_CS1=1;
  	P0=da_data;
	LCD_E=1;
    LCD_E=0;
    LCD_RS=0;
	LCD_RW=1;
	LCD_E=0;
	LCD_CS1=0;
  	}

//------------------------------CPU写数据to LCD_CS2---------------------------------
void cs2_data(unsigned char da_data)
	{
    LCD_E=0;
    LCD_RS=1;
    LCD_RW=0;
	LCD_CS2=1;
  	P0=da_data;
	LCD_E=1;
    LCD_E=0;
    LCD_RS=0;
	LCD_RW=1;
	LCD_E=0;
	LCD_CS2=0;
    }
void init_lcd(void)
{
 WR_comman(0x3e);
 WR_comman(0x3f);
 WR_comman(0xc0);
}
void  set_xy(unsigned char x_page,unsigned char y_line)//设置显示地址
	{ 
  	WR_comman(0x0b8|x_page);
  	delay(1);
  	WR_comman(0x40|y_line);
 	}
//设置汉字显示的位置，
//x_page表示显示的页