51單片機流水燈C語言源程序

**************************************************************

文件名稱：flash_led.c

文件說明：流水燈C程序

編寫日期：2006年10月5日

程序說明：MCU采用AT89S51，外接12M晶振，P1口輸出

*************************************************************/

#include //51系列單片機定義文件

#define uchar unsigned char //定義無符號字符

#define uint unsigned int //定義無符號整數(shù)

void delay(uint); //聲明延時函數(shù)

void main(void)

{

uint i;

uchar temp;

while(1)

{

temp=0x01;

for(i=0;i<8;i++) //8個流水燈逐個閃動

{

P1=~temp;

delay(100); //調用延時函數(shù)

temp<<=1;

}

temp=0x80;

for(i=0;i<8;i++) //8個流水燈反向逐個閃動

{

P1=~temp;

delay(100); //調用延時函數(shù)

temp>>=1;

}

temp=0xFE;

for(i=0;i<8;i++) //8個流水燈依次全部點亮

{

P1=temp;

delay(100); //調用延時函數(shù)

temp<<=1;

}

temp=0x7F;

for(i=0;i<8;i++) //8個流水燈依次反向全部點亮

{

P1=temp;

delay(100); //調用延時函數(shù)

temp>>=1;

}

}

}

void delay(uint t) //定義延時函數(shù)

{

register uint bt;

for(;t;t--)

for(bt=0;bt<255;bt++);

}

#include

#include

#include

#define uchar unsigned char

#define uint unsigned int

#define TimeDelay 60000

void delay(uint n);

void Flash0a(void);

void Flash0b(void);

void Flash1a(void);

void Flash1b(void);

void Flash2a(void);

void Flash2b(void);

void Flash3a(void);

void Flash3b(void);

void main(void)

{

while(1)

{

Flash1b();

Flash1a();

delay(TimeDelay);

delay(TimeDelay);

Flash0b();

Flash0a();

Flash2b();

Flash2a();

Flash1b();

Flash1a();

Flash3b();

Flash3a();

}

}

void delay(uint n)

{

while(n!=0)

{

n--;

}

}

void Flash0a(void)

{

uchar i;

uchar Temp;

Temp = 0x80;

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

{

P0 = ~Temp;

delay(TimeDelay);

Temp = Temp >> 1;

}

P0 = 0xff;

}

void Flash0b(void)

{

uchar i;

uchar Temp;

Temp = 0x80;

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

{

P0 = Temp;

delay(TimeDelay);

Temp = Temp >> 1;

}

P0 = 0;

}

void Flash1a(void)

{

uchar i;

uchar Temp;

P1 = 1;

Temp = 0x80;

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

{

P1 = ~Temp;

delay(TimeDelay);

Temp = Temp >> 1;

}

P1 = 0xff;

}

void Flash1b(void)

{

uchar i;

uchar Temp;

P1 = 1;

Temp = 0x80;

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

{

P1 = Temp;

delay(TimeDelay);

Temp = Temp >> 1;

}

P1 = 0;

}

void Flash2a(void)

{

uchar i;

uchar Temp;

P2 = 1;

Temp = 0x80;

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

{

P2 = ~Temp;

delay(TimeDelay);

Temp = Temp >> 1;

}

P2 = 0xff;

}

void Flash2b(void)

{

uchar i;

uchar Temp;

P2 = 1;

Temp = 0x80;

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

{

P2 = Temp;

delay(TimeDelay);

Temp = Temp >> 1;

}

P2 = 0;

}

void Flash3a(void)

{

uchar i;

uchar Temp;

P3 = 1;

Temp = 0x80;

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

{

P3 = ~Temp;

delay(TimeDelay);

Temp = Temp >> 1;

}

P3 = 0xff;

}

void Flash3b(void)

{

uchar i;

uchar Temp;

P3 = 1;

Temp = 0x80;

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

{

P3 = Temp;

delay(TimeDelay);

Temp = Temp >> 1;

}

P3 = 0;

}

===========

;P1口八個LED燈做三路流水燈實驗

;***************************************************************

;* Date : 2004.4.20 *

;***************************************************************

ORG 0000H

LJMP MAIN

ORG 030H

MAIN:MOV P1,#0DBH ;11011011--0為亮，1為滅

ACALL DELAY

MOV P1,#06DH ;01101101

ACALL DELAY

MOV P1,#0B6H ;10110110

ACALL DELAY

AJMP MAIN

DELAY:MOV R7,#255 ;延時子程序

D1: MOV R6,#255

D2: DJNZ R6,D2

DJNZ R7,D1

RET

END