point.c

基于STC12C5412AD单片机的简易存储示波器设计

#include"STC12C5412AD.H"
#include"intrins.h"

#define dat P2
#define uchar unsigned char
#define uint unsigned int 


sbit cs2=P1^3;
sbit cs1=P1^2;
sbit en=P3^7;
sbit rw=P1^0;
sbit di=P1^1;

void lcd_c(bit flag,uchar ldata)
{

	uchar data i;
	di=!flag;
	en=0;
	rw=0;
	dat=ldata;
	_nop_();
	_nop_();
	_nop_();
	_nop_();
	_nop_();
	_nop_();
	en=1;
	_nop_();
	_nop_();
	_nop_();
	_nop_();
	_nop_();
	_nop_();
	en=0;
	rw=1;
	di=1;
	for(i=0;i<20;i++);
}


//--------------------------------------------------------------------

void dis_point(uchar x_add,uchar y_add)
{
	uchar j,w;
	uchar xx,cc,xxx=0;
	xx=x_add/8;
	xxx=x_add%8;
	switch(xxx)
	{
		case 0:
		cc=1;
		break;

		case 1:
		cc=2;
		break;
		case 2:
		cc=4;
		break;
		case 3:
		cc=8;
		break;
		case 4:
		cc=16;
		break;
		case 5:
		cc=32;
		break;
		case 6:
		cc=64;
		break;
		case 7:
		cc=128;
		break;
	}
	j=xx+0xb8;
	w=(y_add<64?y_add:y_add-64)+0x40;
	cs1=(y_add<64);
	cs2=!cs1;
	lcd_c(1,j);
	lcd_c(1,w);
	lcd_c(0,cc);
    cs1=0;
    cs2=0;
}
//--------------------------------------------------------------------