单片机16led走马灯仿真及程序

只看该作者 · 2016-9-3 13:12

51单片机做的单片机16个led的走马灯仿真及源程序

源代码如下：#include <REG52.H>

unsigned char RunMode;
//**********************************System Fuction*************************************************
void Delay1ms(unsigned int count)
{
      unsigned int i,j;
      for(i=0;i<count;i++)
      for(j=0;j<120;j++);
}

unsigned char code LEDDisplayCode[] = { 0xC0,0xF9,0xA4,0xB0,0x99,0x92,0x82,0xF8,       //0~7
                                                      0x80,0x90,0x88,0x83,0xC6,0xA1,0x86,0x8E,0xFF};

void Display(unsigned char Value)
{
      P3 = LEDDisplayCode[Value];
}

void LEDFlash(unsigned char Count)
{
      unsigned char i;
      bit Flag;
      for(i = 0; i<Count;i++)
      {
            Flag = !Flag;
            if(Flag)
                     Display(RunMode);
            else
                     Display(0x10);
            Delay1ms(100);
      }
      Display(RunMode);
}

unsigned char GetKey(void)
{
      unsigned char KeyTemp,CheckValue,Key = 0x00;
      CheckValue = P2&0x32;
      if(CheckValue==0x32)
            return 0x00;

      Delay1ms(10);
      KeyTemp = P2&0x32;
      if(KeyTemp==CheckValue)
            return 0x00;

      if(!(CheckValue&0x02))
            Key|=0x01;
      if(!(CheckValue&0x10))
            Key|=0x02;
      if(!(CheckValue&0x20))
            Key|=0x04;
      return Key;
}

unsigned int TimerCount,SystemSpeed,SystemSpeedIndex;
void InitialTimer2(void)
{
      T2CON  = 0x00;                      //16 Bit Auto-Reload Mode
      TH2 = RCAP2H = 0xFC;       //重装值,初始值       TL2 = RCAP2L = 0x18;
      ET2=1;                                     //定时器 2 中断允许
      TR2 = 1;                               //定时器 2 启动
      EA=1;
}

unsigned int code SpeedCode[]={ 1, 2, 3, 5, 8,  10,  14,  17,  20,  30,
                                                         40,  50,  60,  70,  80,  90, 100, 120, 140, 160,
                                                            180, 200, 300, 400, 500, 600, 700, 800, 900,1000};//30
void SetSpeed(unsigned char Speed)
{
      SystemSpeed =SpeedCode[Speed];
}

void LEDShow(unsigned int LEDStatus)
{
      P1 = ~(LEDStatus&0x00FF);
      P0 = ~((LEDStatus>>8)&0x00FF);
}

void InitialCPU(void)
{
      RunMode = 0x00;
      TimerCount = 0;
      SystemSpeedIndex = 10;

      P1 = 0x00;
      P0 = 0x00;
      P2 = 0xFF;
      P3 = 0x00;
      Delay1ms(500);
      P1 = 0xFF;
      P0 = 0xFF;
      P2 = 0xFF;
      P3 = 0xFF;
      SetSpeed(SystemSpeedIndex);
      Display(RunMode);
}

//Mode 0
unsigned int LEDIndex = 0;
bit LEDDirection = 1,LEDFlag = 1;
void Mode_0(void)
{
      LEDShow(0x0001<<LEDIndex);
      LEDIndex = (LEDIndex+1)%16;
}
//Mode 1
void Mode_1(void)
{
      LEDShow(0x8000>>LEDIndex);
      LEDIndex = (LEDIndex+1)%16;
}
//Mode 2
void Mode_2(void)
{
      if(LEDDirection)
            LEDShow(0x0001<<LEDIndex);
      else
            LEDShow(0x8000>>LEDIndex);
      if(LEDIndex==15)
            LEDDirection = !LEDDirection;
LEDIndex = (LEDIndex+1)%16;
}
//Mode 3
void Mode_3(void)
{
      if(LEDDirection)
            LEDShow(~(0x0001<<LEDIndex));
      else
            LEDShow(~(0x8000>>LEDIndex));
      if(LEDIndex==15)
            LEDDirection = !LEDDirection;
LEDIndex = (LEDIndex+1)%16;
}

//Mode 4
void Mode_4(void)
{
      if(LEDDirection)
      {
            if(LEDFlag)
                     LEDShow(0xFFFE<<LEDIndex);
               else
                     LEDShow(~(0x7FFF>>LEDIndex));
      }
      else
      {
            if(LEDFlag)
                     LEDShow(0x7FFF>>LEDIndex);
            else
                     LEDShow(~(0xFFFE<<LEDIndex));
      }
      if(LEDIndex==15)
      {
            LEDDirection = !LEDDirection;
            if(LEDDirection)       LEDFlag = !LEDFlag;
      }
         LEDIndex = (LEDIndex+1)%16;
}

//Mode 5
void Mode_5(void)
{
      if(LEDDirection)
            LEDShow(0x000F<<LEDIndex);
      else
            LEDShow(0xF000>>LEDIndex);
      if(LEDIndex==15)
            LEDDirection = !LEDDirection;
LEDIndex = (LEDIndex+1)%16;
}

//Mode 6
void Mode_6(void)
{
      if(LEDDirection)
            LEDShow(~(0x000F<<LEDIndex));
      else
            LEDShow(~(0xF000>>LEDIndex));
      if(LEDIndex==15)
            LEDDirection = !LEDDirection;
         LEDIndex = (LEDIndex+1)%16;
}

//Mode 7
void Mode_7(void)
{
      if(LEDDirection)
            LEDShow(0x003F<<LEDIndex);
      else
            LEDShow(0xFC00>>LEDIndex);
      if(LEDIndex==9)
            LEDDirection = !LEDDirection;
LEDIndex = (LEDIndex+1)%10;
}

//Mode 8
void Mode_8(void)
{
      LEDShow(++LEDIndex);
}

void TimerEventRun(void)
{
      if(RunMode==0x00)
      {
            Mode_0();
      }
      else if(RunMode ==0x01)
      {
            Mode_1();
      }
      else if(RunMode ==0x02)
      {
            Mode_2();
      }
      else if(RunMode ==0x03)
      {
            Mode_3();
      }
      else if(RunMode ==0x04)
      {
            Mode_4();
      }
      else if(RunMode ==0x05)
      {
            Mode_5();
      }
      else if(RunMode ==0x06)
      {
            Mode_6();
      }
      else if(RunMode ==0x07)
      {
            Mode_7();
      }
      else if(RunMode ==0x08)
      {
            Mode_8();
      }
}

void Timer2(void) interrupt 5 using 3
{
      TF2 = 0;       //中断标志清除( Timer2 必须软件清标志!)
      if(++TimerCount>=SystemSpeed)
      {
            TimerCount = 0;
            TimerEventRun();
         }
}
unsigned char MusicIndex = 0;
void KeyDispose(unsigned char Key)
{
      if(Key&0x01)
      {
            LEDDirection = 1;
            LEDIndex = 0;
            LEDFlag = 1;
            RunMode = (RunMode+1)%9;
            Display(RunMode);
      }
      if(Key&0x02)
      {
            if(SystemSpeedIndex>0)
            {
                     --SystemSpeedIndex;
                     SetSpeed(SystemSpeedIndex);
            }
            else
            {
                     LEDFlash(6);
            }
      }
      if(Key&0x04)
      {
            if(SystemSpeedIndex<28)
            {
                     ++SystemSpeedIndex;
                     SetSpeed(SystemSpeedIndex);
            }
            else
            {
                     LEDFlash(6);
            }
      }
}

//***********************************************************************************
main()
{
      unsigned char Key;
      InitialCPU();
      InitialTimer2();

      while(1)
      {
            Key = GetKey();
            if(Key!=0x00)
            {
                     KeyDispose(Key);
            }
      }
}