#include <REG52.H>
unsigned char RunMode;
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);
}
//Mode 1
void Mode_1(void)
{
LEDShow(0x8000>>LEDIndex);
LEDIndex = (LEDIndex+1);
}
//Mode 2
void Mode_2(void)
{
if(LEDDirection)
LEDShow(0x0001<<LEDIndex);
else
LEDShow(0x8000>>LEDIndex);
if(LEDIndex==15)
LEDDirection = !LEDDirection;
LEDIndex = (LEDIndex+1);
}
//Mode 3
void Mode_3(void)
{
if(LEDDirection)
LEDShow(~(0x0001<<LEDIndex));
else
LEDShow(~(0x8000>>LEDIndex));
if(LEDIndex==15)
LEDDirection = !LEDDirection;
LEDIndex = (LEDIndex+1);
}
//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);
}
//Mode 5
void Mode_5(void)
{
if(LEDDirection)
LEDShow(0x000F<<LEDIndex);
else
LEDShow(0xF000>>LEDIndex);
if(LEDIndex==15)
LEDDirection = !LEDDirection;
LEDIndex = (LEDIndex+1);
}
//Mode 6
void Mode_6(void)
{
if(LEDDirection)
LEDShow(~(0x000F<<LEDIndex));
else
LEDShow(~(0xF000>>LEDIndex));
if(LEDIndex==15)
LEDDirection = !LEDDirection;
LEDIndex = (LEDIndex+1);
}
//Mode 7
void Mode_7(void)
{
if(LEDDirection)
LEDShow(0x003F<<LEDIndex);
else
LEDShow(0xFC00>>LEDIndex);
if(LEDIndex==9)
LEDDirection = !LEDDirection;
LEDIndex = (LEDIndex+1);
}
//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);
}
}
}
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