再次学习流水灯，六种花 {MOD}，请高手指导

2020-02-09 09:22发布

#include<pic.h>
#define uchar unsigned char
#define uint  unsigned int
//函数申明
void delay1(uint x);
void  timer_init();
void interrupt time0();
uchar  counter,counter1,time_ok,time_1s,mode;
//=======================================//=============
void  main()                            //主程序
{
uchar YiWei,temp,OutBuf;
YiWei = 0xC0;          //*赋值为1*//
OutBuf = 0x00;
TRISC=0X00;             //C口定义为输出
PORTC=0X3F;             //点亮RCO口LED,为共阳
timer_init();
while(1)
   {
   if(time_1s)
      {
   time_1s=0;
         mode++;
         switch(mode)
         {
               case  1:
                        PORTC=0X3F;YiWei=0XC0;break;
               case  2:
                        PORTC=0XFC;YiWei=0X03;OutBuf=0;break;
               case  3:
                        PORTC=0XFE;YiWei=0X01;OutBuf=0;break;
         case  4:
                        PORTC=0X3F;YiWei=0XC0;OutBuf=0;break;
         case  5:
                        PORTC=0X7F;YiWei=0X80;OutBuf=0;break;
               case  6:
                        PORTC=0XFC;YiWei=0X03;mode=0;break;
         }

      }
   if(time_ok)
      {
         time_ok=0;
         if(mode==1)
         {
         //两灯反追
      if(PORTC==0XFC)
      {
         YiWei=0XC0;
         PORTC=0X3F;
         delay1(500);
      }
      YiWei>>=1;
      PORTC = ~YiWei;  //
   }
         if(mode==0)
         {
            //两灯顺追
   if(PORTC==0X3F)
            {
      YiWei=0X03;
      PORTC=0XFC;
            delay1(500);
      }
   YiWei<<=1;
   PORTC = ~YiWei;
         }
      if(mode==2)
         {
   //两灯叠加顺追
   if(OutBuf==0xFC)//循环一周后清零
         {
      PORTC=0XFC;
            YiWei = 0x03;
      OutBuf = 0x00;
         }
         YiWei<<=1;
         temp=YiWei<<1;
         if((OutBuf|temp)==OutBuf)
   {
      OutBuf>>=1;
            OutBuf>>=1;
      OutBuf += 0xC0;
      YiWei = 0x03;
   }
         PORTC = ~(OutBuf|YiWei);
         }
      if(mode==3)
         {
         if(OutBuf==0xFE)//循环一周后清零
            {
      PORTC=0XFE;
      YiWei = 0x01;
            OutBuf = 0x00;
            }
   YiWei<<=1;
         if((OutBuf|YiWei)==OutBuf)
            {
      OutBuf>>=1;
      OutBuf += 0x80;
      YiWei = 0x01;
            }
   PORTC = ~(OutBuf + YiWei);
   }
      if(mode==4)
{
   //两灯叠加反追
   if(OutBuf==0x3f)//循环一周后清零
            {
      PORTC=0X3f;
      YiWei = 0xc0;
            OutBuf = 0x00;
      }
   YiWei>>=1;
            temp=YiWei>>1;
         if((OutBuf|temp)==OutBuf)
   {
      OutBuf<<=1;
            OutBuf<<=1;
      OutBuf += 0x03;
      YiWei = 0xc0;
   }
   PORTC = ~(OutBuf|YiWei);
         }
      if(mode==5)
         {
            //叠加反追
   if(OutBuf==0x7f)//循环一周后清零
      {
      PORTC=0X7f;
      YiWei = 0x80;
      OutBuf = 0x00;
      }
      YiWei>>=1;
      if((OutBuf|YiWei)==OutBuf)
      {
         OutBuf<<=1;
         OutBuf += 0x01;
         YiWei = 0x80;
      }
            PORTC = ~(OutBuf + YiWei);
}
      }
}
}
//=======================================//=============
//TIMR初始化函数
void  timer_init()
{
//TIMER0初始化
OPTION=0x87;//1000 0111       //预分频给TM0，分频比1/8
TMR0=60;                            //(256-60)X256=50mS
GIE=1;                         //开放全局中断
T0IE=1;                      //开放TM0中断
//TIMER1初始化
T1CON=0x31;//0011 0001       //预分频比为1/8,启动TMR1
PEIE=1;                      //使能外设中断
TMR1IE=1;                      //使能TMR1中断
TMR1H=(65536-62500)/256;       //TMR1付初值
TMR1L=(65536-62500)%256;       // 62500X8=500mS
GIE=1;
}
//=======================================//=============
//中断服务与汇编一样要判定那种类型中断
// Timer 0 比较匹配中断服务
void interrupt time0()
{
if(T0IE&&T0IF)
   {T0IF=0;                         //TM0中断信号清零
TMR0=60;
//display(); // 调用LED扫描显示
if (++counter >=10)             //counter加一，并判断是否大于5
{
counter = 0;
   time_ok = 1;    // 10ms到
}
   }
// Timer 1 比较匹配中断服务
if(TMR1IE&&TMR1IF)
{
TMR1IF=0;                         //TM0中断信号清零
TMR1H=(65536-62500)/256;       //TMR1付初值
TMR1L=(65536-62500)%256;       //
if (++counter1 >=60)             //counter加一，并判断是否大于5
{
counter1 = 0;
   time_1s=1;                //
}
}
}
//=======================================//=============
//延时程序
void delay1(uint x)                   //延时时间为(X)ms
{
uint a,b;
for(a=x;a>0;a--)
for(b=75;b>0;b--);             //延时数较准确固定多26us

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