test.c

51单片机经典程序。初学者使用。包括键盘控制

/*----------------------------------www.00IC.com-----------------------------------------
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                      ┆     00IC-51开发板配套实验学习例程     ┆
                      ┆             Version 2.0.1             ┆
                      ┆                                       ┆
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                      ┆                                       ┆
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                      ┆         E-mail:[e-mail]         ┆
                      ╚=======================================╝
************************* ********* 程序功能说明 ******************************************************
   按第一个按键，蜂鸣器响一长声；按第二个按键，蜂鸣器响一短声；按第三个按键，蜂鸣器响两长声
   按第四个按键，蜂鸣器响两短声；按第五个按键，蜂鸣器响两长三短声
********************************************************************************************/
#include "reg52.h"

sbit key1 = P3^2;
sbit key2 = P3^3;
sbit key3 = P3^4;
sbit key4 = P3^5;
sbit key5 = P3^7;
sbit speaker = P2^4;

void Delay(int m)
{
	while(--m);
}

void main(void)
{
	while(1)
	{
		if(!key1)
		{
			speaker= 0;
			Delay(60000);
			speaker= 1;
		}

		if(!key2)
		{
			speaker= 0;
			Delay(10000);
			speaker= 1;
		}

		if(!key3)
		{
			speaker= 0;
			Delay(60000);
			speaker= 1;
			Delay(60000);
			speaker= 0;
			Delay(60000);
			speaker= 1;
		}

		if(!key4)
		{
			speaker= 0;
			Delay(10000);
			speaker= 1;
			Delay(10000);
			speaker= 0;
			Delay(10000);
			speaker= 1;
		}

		if(!key5)
		{
			speaker= 0;
			Delay(60000);
			speaker= 1;
			Delay(60000);
			speaker= 0;
			Delay(60000);
	    	         speaker= 1;
			Delay(40000);
			speaker= 0;
			Delay(10000);
			speaker= 1;
			Delay(10000);
			speaker= 0;
			Delay(10000);
			speaker= 1;
			Delay(10000);
			speaker= 0;
			Delay(10000);
			speaker= 1;
		}
	}
}