51单片机实现光源的跟踪
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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);
//回车
//Send(0xA);
//换行
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);
//回车
//Send(0xA);
//换行
return(A2*1000+B2*100+C2*10+D2);
}
void uart_init()
{
TMOD=0x20;
//TMOD=0010 0000B，定时器T1工作于方式2
SM0=0; //选择串行口工作方式1
SM1=1;
TH1=0xfa;
//根据规定给定时器T1赋初值
9600波特率
TL1=0xfa;
//根据规定给定时器T1赋初值
TR1=1;
//启动定时器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;//设置PCA时钟周期
系统时钟12分频 fosc/12
CL = 0x00;
//初值设置
CH = 0x00;
CCAP0L = count; //设置初始占空比为25%