单片机ADC0832液晶显示程序

#include

#include

#define uchar unsigned char

#define uint unsigned int

/*.......引脚的定义得根据自己具体的板子原理图......*/ sbit cs =P1^2; //adc0832使能端引脚定义

sbit din=P3^3; //adc0832输入端定义

sbit dout=P3^2; //adc0832输出端定义

sbit clk=P1^1; //时钟引脚

sbit rs=P3^6; //1602液晶读

sbit en=P2^4; //1602液晶使能端

sbit s1=P2^7; //数码管使能端

sbit s2=P2^6; //数码管使能端

void delay(uint t)

{

uint i;

uchar j;

for(i=t;i>0;i--)

for(j=123;j>0;j--);

}

void lcd_writecom(uchar m) //lcd写命令

{

P0=m;

rs=0;

delay(5);

en=0;

delay(5);

en=1;

delay(5);

}

void lcd_writedata(uchar m) //lcd写数据

{

P0=m;

rs=1;

delay(5);

en=0;

delay(5);

en=1;

delay(5);

}

void lcd_init() //lcd初始化

{

lcd_writecom(0x01);

lcd_writecom(0x38);

lcd_writecom(0x0c);

lcd_writecom(0x06);

lcd_writecom(0xd0);

}

void lcd_char(uchar hang,uchar lie,char xihao) //lcd写字符，写第（行，列，字符）{

uchar a;

if(hang==1)a=0x80;

if(hang==2)a=0xc0;

a=a+lie-1;

lcd_writecom(a);

lcd_writedata(xihao);

}

void lcd_string(uchar hang,uchar lie,uchar *p) //lcd从第（行，列，字符）开始写{

uchar a;

if(hang==1)a=0x80;

if(hang==2)a=0xc0;

a=a+lie-1;

lcd_writecom(a);

while(1)

{

if(*p=='\0') break;

lcd_writedata(*p);

p++;

}

}

uchar adc0832(uchar channel) //adc0832的程序

{

/* uchar i=0;

uchar dat=0;

if(channel==0)channel=2;

if(channel==1)channel=3;

din=0;cs=1;clk=0;

din=1;cs=0;clk=1;

clk=0;clk=1;

din=channel&0x1;

clk=0;clk=1;

din=(channel>>1)&0x1;

clk=0;din=1;

dat=0;

for(i=0;i<8;i++)

{

dat|=dout;

clk=1;

clk=0;

dat<<=1;

if(i==7)dat|=dout;

}

cs=1;clk=0;dout=1;

return(dat); */

uchar i,dat1=0,dat2=0;

cs=0; //第一个脉冲，上升沿有效

clk=0;

din=1;

clk=1;

clk=0;

din=1; //第二个脉冲，上升沿有效clk=1;

clk=0;

din=channel; //第三个脉冲

clk=1;

clk=0;

// din=1;

for(i=0;i<8;i++)

{

clk=1;

clk=0;

if(dout)

{

dat1|=0x80>>i;

}

}

/* for(i=0;i<8;i++)

{

clk=1;

clk=0;

if(dout)

{

dat2|=0x01<

}

} */

cs=1;

din=1;

clk=0;

// if(dat1==dat2)

// {

return dat1;

// }

}

void main()

{

uchar a,b,c;

uchar x;

lcd_init();

s1=0;

s2=0;

while(1)

{

x=adc0832(1);

a=x/100;

b=x/10%10;

c=x%10;

lcd_string(1,1,"wen du");

lcd_string(2,1,"ad0832");

lcd_writecom(0x88);

lcd_writedata(a+'0');

lcd_writedata(b+'0');

lcd_writedata(c+'0');

delay(10);

}

}