Protues仿真实例（8051）-走马灯实验.zip

#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); } } }