boardandled.txt

键盘加减1和LED显示,好东东

//输入数字“5”“6”“7”“8”存在数组shuzu[4],并在LED上显示
#include<reg51.h>
#define uchar unsigned char
#define uint unsigned int
uchar code SEG7[10]={0xc0,0xF9,0xA4,0xB0,0x99,//0-4
      0x92,0x82,0xF8,0x80,0x90,//5-9
	  };
uchar code ACT[4]={0xe8,0xd8,0xb8,0x78};
uchar data shuzu[4];
uchar status;					//工作状态
uchar temp,f;
void delay_1ms(void)
{
	uint k;
	for(k=1;k<121;k++);
 }
void dis_all(void)
{
	P0=SEG7[shuzu[0]];
	P2=ACT[0];
	delay_1ms();
	P0=SEG7[shuzu[1]];
	P2=ACT[1];
	delay_1ms();
	P0=SEG7[shuzu[2]];
	P2=ACT[2];
	delay_1ms();
	P0=SEG7[shuzu[3]];
	P2=ACT[3];
	delay_1ms();
 }
void dis_shuzu0(void)
{
	P0=SEG7[f];
	P2=ACT[0];
	delay_1ms();
 }
void dis_shuzu1(void)
{
	P0=SEG7[f];
	P2=ACT[1];
	delay_1ms();
 }
void dis_shuzu2(void)
{
	P0=SEG7[f];
	P2=ACT[2];
	delay_1ms();
 }
void dis_shuzu3(void)
{
	P0=SEG7[f];
	P2=ACT[3];
	delay_1ms();
 }
void key_s1(void)		//加1
{
	P3=0xff;
	if(P3==0xfb)
		{
			if(temp>50)		temp=0;
			if(temp==0)		f++;
			if(f>9)			f=0;
			temp++;
			delay_1ms();
		  }
 }
void key_s2(void)		//减1
{
	P3=0xff;
	if(P3==0xf7)
		{
			if(temp>50)		temp=0;
			if(temp==0)		f--;
			if(f>9)			f=9;
			temp++;
			delay_1ms();
		  }
 }
void key_s3(void)		//存数组
{
		P3=0xff;
		if(P3==0xef)		
			{
				switch(status)
					{
						case 1:   shuzu[0]=f; break;
						case 2:   shuzu[1]=f; break;
						case 3:   shuzu[2]=f; break;
						case 4:   shuzu[3]=f; break;
						default: break;
					 }
			 }
 }
void key_s4(void)
{
	P3=0xff;
	if(P3==0xdf)
	{
		if(temp>50)		temp=0;
		if(temp==0)	
		status++;
		if(status>4)		status=0;
		temp++;
		delay_1ms();
	 }
 }
void main(void)
{
	while(1)
	{	key_s4();
		key_s1();
		key_s2();
		key_s3();
		switch(status)
		{
			case 0:dis_all();   break;
			case 1:dis_shuzu0();break;
			case 2:dis_shuzu1();break;
			case 3:dis_shuzu2();break;
			case 4:dis_shuzu3();break;
			default:break;
		 }
	 }
 }