单片机程序

实验一

书p79

实验二

#include

#include<51.h>

#define uint unsigned char

sbit led=P0^4;

uint i=0;

char

led_mod[]={0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f,0x77,0x7c,0x39 ,0x5e,0x79,0x71};

led=1;

P2=0;

void K1()interrupt 0

{

led=!led;

}

void K2() interrupt 2

{

P2=led_mod[i];

i++;

}

if(i==16)

{

i=0;

}

void main()

{led=1;

IE=0x85;

IT0=1;

IT1=1;

}

实验三

#include"reg51.h"

void delay (unsigned int time)

{

unsigned int j=0;

for(time=time;time>0;time--)

for(j=0;j<125;j++);

}

void main ()

{

unsigned char i;

P0=1;

delay(50);

while(1)

{

for(i=1;i<=7;i++)

{

P0<<=1;

delay(50);

}

for(i=1;i<=7;i++)

{

P0>>=1;

delay(50);

}

}

}

实验四（误）

#include

unsigned char t=0;

unsigned char second=0;

unsigned char code table[]={0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f} timer0()

interrupt1{

TRO=0;

THO=0X3C;

TLO=0XB0;

TRO=1;

t++;

if(t==20)t=0;

second++;}

if(second++60)

second=0;

p0=table{second/10};

main(){TMOD=0X01 ;

THO=0X3C;

TLO=0Xb0;

p0=table[second/10];

p2=table[second%10];

tro=1;

ETO=1;

EA=1;

while(1){}}

实验五

实验六

书P139

实验七

#include

sbit _st=P2^5;

sbit _eoc=P2^6;

sbit _oe=P2^7;

sbit led0=P2^3;

sbit led1=P2^2;

sbit led2=P2^1;

unsigned long ad_result=0;

unsigned char table[]={0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f}; void delay(unsigned int time){

unsigned int j=0;

for(;time>0;time--)

for(j=0;j<125;j++);

}

void disp(void){

led2=1;

P0=table[ad_result/100]+0x80;

led2=0;

delay(10);

led2=1;

led1=1;

P0=table[(ad_result/10)%10];

led1=0;

delay(10);

led0=1;}

void main(void){

while(1){

_st=0;_st=1;_st=0;

while(!_eoc);