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åæ¢åéï¼ä¹æºæ ¹æ®ææ¥æ¶å°çå符å®æLED1éªçãLED2éªçãåéªçãæåæ¢éªçã
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#include<reg51.h>
#define uchar unsigned char
#define uint unsigned int
sbit LED1=P0^0;
sbit LED2=P0^3;
sbit K1=P1^0;
//延æ¶
void DelayMS(uint ms)
{
uchari;
while(ms--)for(i=0;i<120;i++);
}
//å串å£åéå符
void Putc_to_SerialPort(uchar c)
{
SBUF=c;
while(TI==0);
TI=0;
}
//主ç¨åº
void main()
{
ucharOperation_No=0;
SCON=0x40; //串å£æ¨¡å¼1
TMOD=0x20; //T1å·¥ä½æ¨¡å¼2
PCON=0x00; //æ³¢ç¹çä¸åå¢
TH1=0xfd;
TL1=0xfd;
TI=0;
TR1=1;
while(1)
{
if(K1==0) //æä¸K1æ¶éæ©æä½ä»£ç 0ï¼1ï¼2ï¼3
{
while(K1==0);
Operation_No=(Operation_No+1)%4;
}
switch(Operation_No) //æ ¹æ®æä½ä»£ç åéA/B/Cæåæ¢åé
{
case0: LED1=LED2=1;
break;
case1: Putc_to_SerialPort('A');
LED1=~LED1;LED2=1;
break;
case2: Putc_to_SerialPort('B');
LED2=~LED2;LED1=1;
break;
case3: Putc_to_SerialPort('C');
LED1=~LED1;LED2=LED1;
break;
}
DelayMS(100);
}
}
ä¹æºç¨åº
#include<reg51.h>
#define uchar unsigned char
#define uint unsigned int
sbit LED1=P0^0;
sbit LED2=P0^3;
//延æ¶
void DelayMS(uint ms)
{
uchari;
while(ms--)for(i=0;i<120;i++);
}
//主ç¨åº
void main()
{
SCON=0x50; //串å£æ¨¡å¼1ï¼å
许æ¥æ¶
TMOD=0x20; //T1å·¥ä½æ¨¡å¼2
PCON=0x00; //æ³¢ç¹çä¸åå¢
TH1=0xfd; //æ³¢ç¹ç9600
TL1=0xfd;
RI=0;
TR1=1;
LED1=LED2=1;
while(1)
{
if(RI) //å¦æ¶å°åLEDéªç
{
RI=0;
switch(SBUF)//æ ¹æ®ææ¶å°çä¸åå½ä»¤å符å®æä¸åå¨ä½
{
case'A': LED1=~LED1;LED2=1;break; //LED1éªç
case'B': LED2=~LED2;LED1=1;break; //LED2éªç
case'C': LED1=~LED1;LED2=LED1; //åéªç
}
}
else LED1=LED2=1; //å
³éLED
DelayMS(100);
}
}
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