花样灯c程序（1）

/*-----------------------------------------------
功能：花样灯（实现多种闪烁）

作者：fei yu

日期：2010-6-15

------------------------------------------------*/

#include<reg52.h>
#define uint unsigned int
void delay(uint);
main()
{ 
        uint fre=0x04;
        uint fre1,fre2;
        uint comp1=0xfe,comp2=0x80;
        while(1)
        {
                /*----------------------------------------------------------------------------------

                         模块一：循环单向闪烁，只有一个灯亮

                                  执行3次，转入下一种闪烁

                ----------------------------------------------------------------------------------*/
                P1=0xfe;
                while(1!=fre--)
                {
                        fre1=0x08;
                        while(1!=fre1--)
                        {
                                delay(30000);
                                P1<<=1;
                                P1|=0x01;
                                if(P1==0x7f)
                                {
                                        delay(30000);        
                                        P1=0xfe;
                                }
                        }       
                }
                /*----------------------------------------------------------------------------------

                           模块2：循环单向闪烁，只有两个灯亮

                                    3次，转入下一种闪烁执行 

                ----------------------------------------------------------------------------------*/
                P1=0xfc;
                while(3!=fre++)
                {
                        fre2=0x04;
                        while(1!=fre2--)
                        {
                                delay(30000);
                                P1<<=2;
                                P1|=0x03;
                                if(P1==0x3f)
                                {
                                        delay(30000);
                                        P1=0xfc; 
                                }
                        }     
                }
                /*----------------------------------------------------------------------------------
                                    模块3：循环往复闪烁，只有一个灯亮

                                                 执行3次，转入下一种闪烁                
                ----------------------------------------------------------------------------------*/
                P1=0xfe;
                fre1=0x04;
                while(1!=fre1--)
                {
                        while(P1!=0x7f)
                        {
                                delay(30000);
                                P1<<=1;
                                P1|=0x01;               
                        } 
                        while(P1!=0xfe)
                        {
                                delay(30000);
                                P1>>=1;
                                P1|=0x80;               
                        }
                }
                /*----------------------------------------------------------------------------------  
                                          模块4：全亮全灭

                                    执行3次，转入下一模块                 
                ----------------------------------------------------------------------------------*/
                while(3!=fre1++)
                {
                        delay(30000);
                        P1=0x00;
                        delay(30000);
                        P1=0xff;            
                }
                /*----------------------------------------------------------------------------------
                                   模块5：顺次点亮或者熄灭，

                            多个灯亮，执行3次，转入下一模块                
                ----------------------------------------------------------------------------------*/
                while(1!=fre1--)
                {
                        P1=0xfe;
                        while(P1!=0x00)
                        {
                                delay(30000);
                                P1<<=1;               
                        } 
                        delay(30000);
                        P1=0x80;
                        while(P1!=0xff)
                        {
                                delay(30000);
                                P1>>=1;
                                P1|=0x80;
                        }
                }         
                /*----------------------------------------------------------------------------------        
                                  模块6：顺次点亮或者熄灭，多个灯亮，

                                 一次点亮两个，执行3次，转入下一模块                          
                ----------------------------------------------------------------------------------*/
                while(3!=fre1++)
                {        
                        P1=0xfc;
                        while(P1!=0x00)
                        {
                                delay(30000);
                                P1<<=2;
                        }
                        delay(30000);
                        P1=0xc0;
                        while(P1!=0xff)
                        {
                                delay(30000);
                                P1>>=2;
                                P1|=0xc0;
                        }
                        delay(30000);
                }       
                /*----------------------------------------------------------------------------------         
                                   模块7：双端对称往返闪烁

                                   执行3次，进行下一轮循环                          
                ----------------------------------------------------------------------------------*/
                P1=0x7e;
                delay(30000);
                while(1!=fre1--)
                {
                        fre2=0x00;
                        while(6!=fre2++)
                        {
                                P1=0xff;
                                comp1<<=1;
                                comp1|=0x01;
                                comp2>>=1;
                                P1&=comp1;
                                P1^=comp2;
                                delay(3000000);
                                if(P1==0xe7)
                                {
                                        comp1<<=1;
                                        comp1|=0x01;
                                        comp2>>=1;
                                }
                                if(comp2==0x01)
                                {
                                        comp1=0xfe;
                                        comp2=0x80;
                                }
                        }
                }
        }       
}
void delay(uint cnt)
{
  while(cnt--);
}

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