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程序——51单片机ADC0804
#include
#include #define uchar unsigned char
#define uint unsigned int sbit ST=P3^0;
sbit OE=P3^1;
sbit EOC=P3^2;
sbit CLK=P3^3;
sbit L1=P2^2;
sbit L2=P2^1;
sbit L3=P2^0;
unsigned char getdata; uchar code LED0[]={0x40,0x79,0x24,0x30,0x19,0x12,0x02,0x78,0x00,0x10};
uchar code LED[]={0xc0,0xf9,0xa4,0xb0,0x99,0x92,0x82,0xf8,0x80,0x90};
void display();
void delay()
{
uint x;
for(x=400;x>0;x--); }
void main()
{
ST=0;
OE=0;
TMOD=0X01;
TH0=(65536-50)/256;
TL0=(65536-50)%256;
EA=1;
ET0=1;
TR0=1;
while(1)
{
ST=0;
_nop_();
_nop_();
ST=1;;
_nop_();
_nop_();
ST=0;
P0=0XFF;
while(!EOC);
OE=1;
getdata=P0;
display();
}
}
void timer0(void) interrupt 1 using 0
{
TH0=(65536-50)/256;
TL0=(65536-50)%256;
CLK^=1;
}
void display()
{
uint bai,shi,ge;
bai=(uint)(getdata*2/100);
shi=(uint)(getdata*2%100/10);
ge=(uint)(getdata*2*100%10);
L1=0;
P1=LED0[bai];
delay();
L1=1;
L2=0;
P1=LED[shi];
delay();
L2=1;
L3=0;
P1=LED[ge];
delay();
L3=1;
}
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