x102_adc0809.c

该文件中包括89系列 X102开发板的12232液晶屏AD转换器ADC0809,DA转换器DAC0832,I2C总线芯片24C02,RAM电路62256,发光二极管电路

#include <reg52.h>
#include <ctype.h>
#include <string.h>
#include <stdlib.h>
#include <stdio.h>
#include <math.h>
#include <absacc.h>

#define uchar unsigned char
#define uint unsigned int
#define ulong unsigned long

sbit sm1623_dout=P1^0;
sbit sm1623_din=P1^1;
sbit sm1623_clk=P1^2;
sbit sm1623_stb=P1^3;
sbit P3_5=P3^5;

#define cs_0809 XBYTE[0XF000]

void delaym(uchar delaym_temp);//短延时
void disp(uchar dis);
void display();

uchar i;
uchar code_dis[6];

main(void)
{
	code_dis[0]=11;
	code_dis[1]=12;
	code_dis[2]=13;
	code_dis[3]=0;
	code_dis[4]=0;
	code_dis[5]=0;
	display();//显示Ad-000
start:	cs_0809=0;//启动A/D转换
	delaym(5);
	while(P3_5==1);
	i=cs_0809;//读数据
	code_dis[5]=i%10;
	i=i/10;
	code_dis[4]=i%10;
	i=i/10;
	code_dis[3]=i%10;
	display();//将A/D转换的结果送显示
	goto start;	
}

void delaym(uchar delaym_temp)//延时子程序
{
	uchar data i;
	for(i=0;i<delaym_temp;i++);
}

void disp(uchar dis)//送显示命令子程序
{
	uchar dis_i,dis_temp;
	dis_temp=0x01;
	for(dis_i=0;dis_i<8;dis_i++)
	{
		sm1623_clk=0;
		delaym(1);
		if((dis&dis_temp)==0){sm1623_din=0;}
		else{sm1623_din=1;}
		sm1623_clk=1;//上升沿输入数据
		delaym(1);
		dis_temp=dis_temp<<1;
	}
}

void display()//显示子程序
{
	uchar code_dis_d[6];
	uchar i;
	for(i=0;i<6;i++)//计算显示码
	{
		switch(code_dis[i])
		{
			case 1:
				code_dis_d[i]=0x06;
				break;
			case 2:
				code_dis_d[i]=0x5b;
				break;
			case 3:
				code_dis_d[i]=0x4f;
				break;
			case 4:
				code_dis_d[i]=0x66;
				break;
			case 5:
				code_dis_d[i]=0x6d;
				break;
			case 6:
				code_dis_d[i]=0x7d;
				break;
			case 7:
				code_dis_d[i]=0x07;
				break;
			case 8:
				code_dis_d[i]=0x7f;
				break;
			case 9:
				code_dis_d[i]=0x6f;
				break;
			case 10://显示黑
				code_dis_d[i]=0x00;
				break;
			case 11://显示A
				code_dis_d[i]=0x77;
				break;
			case 12://显示d
				code_dis_d[i]=0x5e;
				break;
			case 13://显示-
				code_dis_d[i]=0x40;
				break;
			case 14://显示8.
				code_dis_d[i]=0xff;
				break;
			default://显示0
				code_dis_d[i]=0x3f;
				break;
		}
	}
	sm1623_stb=0;
	disp(0x02);//显示模式6位12段
	sm1623_stb=1;
	delaym(1);
	sm1623_stb=0;
	disp(0x40);//设置数据
	sm1623_stb=1;
	delaym(1);
	sm1623_stb=0;
	disp(0xc0);//设置地址
	disp(code_dis_d[0]);//1
	disp(0x00);
	disp(code_dis_d[1]);//2
	disp(0x00);
	disp(code_dis_d[2]);//3
	disp(0x00);
	disp(code_dis_d[3]);//4
	disp(0x00);
	disp(code_dis_d[4]);//5
	disp(0x00);
	disp(code_dis_d[5]);//6
	disp(0x00);
	sm1623_stb=1;
	delaym(1);
	sm1623_stb=0;
	disp(0x8a);//控制显示
	sm1623_stb=1;
}