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51單片機實現光源的跟蹤

作者：時間：2016-11-27 來源：網絡

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unsigned int show_ADC_result_ch0()

{

unsigned long int VCC1;

unsigned int A1,B1,C1,D1,i;

VCC1=0;

for(i=0;i<8;i++)

{

VCC1=VCC1+get_ADC_result(0);}

VCC1=VCC1/8;

VCC1=get_ADC_result(0);

VCC1=(long int)VCC1*10000/1024*5;

A1=VCC1/10000;

B1=VCC1000/1000;

C1=VCC100000/100;

D1=VCC1000000/10;

Send(0x56);//V

Send(0x31); //1

Send(0x3D);//=

Send(A1+48);

Send(0x2E);//.

Send(B1+48);

Send(C1+48);

Send(D1+48);

//Send(0xD); //回車

//Send(0xA); //換行

return(A1*1000+B1*100+C1*10+D1);

}

unsigned int show_ADC_result_ch1()

{

long int VCC2;

unsigned int A2,B2,C2,D2,i;

VCC2=0;

for(i=0;i<8;i++)

{

VCC2=VCC2+get_ADC_result(1);}

VCC2=VCC2/8;

VCC2=get_ADC_result(1);

VCC2=(long int)VCC2*10000/1024*5;

A2=VCC2/10000;

B2=VCC2000/1000;

C2=VCC200000/100;

D2=VCC2000000/10;

Send(0x56);//V

Send(0x32); //1

Send(0x3D);//=

Send(A2+48);

Send(0x2E);//.

Send(B2+48);

Send(C2+48);

Send(D2+48);

//Send(0xD); //回車

//Send(0xA); //換行

return(A2*1000+B2*100+C2*10+D2);

}

void uart_init()

{

TMOD=0x20; //TMOD=0010 0000B，定時器T1工作于方式2

SM0=0; //選擇串行口工作方式1

SM1=1;

TH1=0xfa; //根據規定給定時器T1賦初值9600波特率

TL1=0xfa; //根據規定給定時器T1賦初值

TR1=1; //啟動定時器T1

}

void Send(unsigned char dat)

{

SBUF=dat;

while(TI==0);

TI=0;

}

void positive_turn(unsigned int count)

{

P2_0=1;

P2_1=0;

CMOD = 0x00;//設置PCA時鐘周期系統時鐘12分頻 fosc/12

CL = 0x00; //初值設置

CH = 0x00;

CCAP0L = count; //設置初始占空比為25%

CCAP0H = count;//占空比設置的是低電平的時間

CCAPM0 = 0X42;//PWM模式

CR = 1;//開啟PCA計數器

}

void negative_turn(unsigned int count)

{

P2_0=0;

P2_1=1;

CMOD = 0x00;//設置PCA時鐘周期系統時鐘12分頻 fosc/12

CL = 0x00; //初值設置

CH = 0x00;

CCAP0L = count; //設置初始占空比為25%

CCAP0H = count;//占空比設置的是低電平的時間

CCAPM0 = 0X42;//PWM模式

CR = 1;//開啟PCA計數器

}

void stop_turn()

{

P1_3=1;

P2_0=1;

P2_1=1;

}

void delay(unsigned int a)

{

unsigned int b,i,tt;

b=a;

for(i=1;i

{tt=60000;

while(tt--);}

}

void delay_10ms()

{

TMOD=0x01;

TF0=0;

TH0=(65536-18433)/256;//10ms

TL0=(65536-18433)%6;

TR0=1;

while(!TF0);

TR0=0;

}

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