sony2.c

适用于sony FCB 相机与51兼容的单片机的通讯

#include <reg51.h>
#include <intrins.h>
#include <stdio.h>
#include <math.h>

sbit sw1=0x92;
sbit sw2=0x93;
unsigned char poweron[6]={0x81,0x01,0x04,0x00,0x02,0x0ff};
unsigned char ifclear[5]={0x88,0x01,0x00,0x01,0x0ff};
unsigned char address[4]={0x88,0x30,0x01,0x0ff};
unsigned char zoomstop[6]={0x81,0x01,0x04,0x07,0x00,0x0ff};
unsigned char zoomtele[6]={0x81,0x01,0x04,0x07,0x02,0x0ff};
unsigned char zoomwide[6]={0x81,0x01,0x04,0x07,0x03,0x0ff};
unsigned char zoompos[5]={0x81,0x09,0x04,0x47,0x0ff};
unsigned char autowb[6]={0x81,0x01,0x04,0x35,0x00,0x0ff};
unsigned char autofocus[6]={0x81,0x01,0x04,0x38,0x02,0x0ff};
unsigned char apeup[6]={0x81,0x01,0x04,0x02,0x02,0x0ff};
unsigned char apedown[6]={0x81,0x01,0x04,0x02,0x03,0x0ff};

int code table1[50]={41,42,43,44,46,48,50,52,54,56,	/*from 0x0000 to 0x2fff*/
		     58,60,62,64,66,68,70,72,74,76,
	/*20*/	     78,80,82,85,88,91,95,99,103,107,
		     111,115,119,123,128,134,140,146,152,158,
	/*40*/	     164,174,184,194,205,215,225,235,
		     };

int code table2[260]={236,237,238,240,242,244,246,247,248,249,	/*from 0x3000 to 0x4000*/
		      250,251,252,253,254,255,256,257,258,259,
	/*20*/	      260,261,262,263,264,265,266,267,268,269,
		      270,271,272,273,274,275,276,277,278,279,
	/*40*/	      280,281,282,283,285,287,288,289,290,291,
		      292,293,294,295,296,297,298,299,300,301,
	/*60*/	      302,303,304,305,306,307,308,309,310,311,
		      312,313,314,315,316,317,318,319,320,321,
	/*80*/	      322,323,325,327,328,329,330,331,332,333,
		      334,335,336,337,338,339,340,341,342,343,
	/*100*/	      344,345,346,347,349,351,353,355,357,359,
		      361,363,365,367,369,370,371,372,373,374,
	/*120*/	      375,376,378,380,382,384,386,388,390,392,
		      394,396,398,400,402,404,406,408,410,411,
	/*140*/	      412,413,414,415,416,417,418,419,420,421,
		      423,425,427,429,431,433,435,437,439,441,
	/*160*/	      443,445,447,449,451,453,455,457,459,461,
		      463,465,468,471,474,477,480,483,486,489,
	/*180*/	      492,494,496,498,500,502,504,506,508,510,
		      512,514,516,518,520,522,524,526,528,530,
	/*200*/	      533,535,537,539,541,544,547,550,553,556,
		      559,562,565,568,571,574,577,580,583,586,
	/*220*/	      589,592,595,598,601,604,607,611,615,618,
		      621,624,628,632,636,640,644,648,652,656,
	/*240*/	      659,662,665,669,673,677,681,685,689,693,
		      697,703,710,717,724,731,738,
	              };

unsigned char a,b,c,d,e,f,RN=0,SN=0,OS,NS,SS,order,jh,jl,zj,detail,rev[8];
unsigned int i,tout,tj,delay;
unsigned char SCON1,SBUF1,T2CON,T2MOD;

void receive()
{
  RI=0;
  i=0;
  do
  {  while(RI==0){};
     rev[i]=SBUF;
     RI=0;
     i++;
   }
   while(rev[i-1]!=0x0ff);
}

void initialize()
{
     TI=0;

     for(i=0;i<5;i++)
    {
     SBUF1=ifclear[i];
     while(TI==0){};
     TI=0;
     }
     receive();

     for(i=0;i<4;i++)
    {
     SBUF1=address[i];
     while(TI==0){};
     TI=0;
     }
     receive();

     for(i=0;i<6;i++)
    {
     SBUF1=autowb[i];
     while(TI==0){};
     TI=0;
     }
     receive();
     if(rev[1]==0x41)
     {receive();}

     for(i=0;i<6;i++)
    {
     SBUF1=autofocus[i];
     while(TI==0){};
     TI=0;
     }
     receive();
     if(rev[1]==0x41)
     {receive();}
}

void campos()
{     for(i=0;i<5;i++)
     {
     SBUF1=zoompos[i];
     while(TI==0){};
     TI=0;
     }
     receive();
     a=rev[2];
     b=rev[3];
     c=rev[4];
     d=rev[5];
     e=a<<4;
     e=e|b;
     f=e<<4;
     f=f|e;
   if(e<0x30)
   {tout=table1[e];}

   else if(e>=0x30)
   {tout=table2[f-0x300];}
}

void send(void)
{ EA=0;
  ES=0;
   if(order==0x080)
   {
     for(i=0;i<6;i++)
    {
     SBUF=zoomtele[i];
     while(TI==0){};
     TI=0;
     }
     receive();
     if(rev[1]==0x41)
     {receive();}
    }

    else if(order==0x040)
   {
     for(i=0;i<6;i++)
    {
     SBUF=zoomwide[i];
     while(TI==0){};
     TI=0;
     }
     receive();
     if(rev[1]==0x41)
     {receive();}
    }

   else
   {
     for(i=0;i<6;i++)
    {
     SBUF=zoomstop[i];
     while(TI==0){};
     TI=0;
     }
     receive();
     if(rev[1]==0x41)
     {receive();}
    }


      SBUF=0x84;
      while(TI==0){}
           TI=0;
           _nop_();_nop_();_nop_();_nop_();
           SBUF=0x84;
           SS=0x84;
           SS=SS+0x84;
      while(TI==0){}
            TI=0;
            _nop_();_nop_();_nop_();_nop_();
            SBUF=0x08;
            SS=SS+0x08;
  while(TI==0){}
           TI=0;
           SBUF=jl;
           SS=SS+jl;
      while(TI==0){}
           TI=0;
           _nop_();_nop_();_nop_();_nop_();
           SBUF=jh;
           SS=SS+jh;
  while(TI==0){}
           TI=0;
           _nop_();_nop_();_nop_();_nop_();
           SBUF=zj;
           SS=SS+zj;
      while(TI==0){}
           TI=0;
           _nop_();_nop_();_nop_();_nop_();
           SBUF=detail;
           SS=SS+detail;
      while(TI==0){}
           TI=0;
           _nop_();_nop_();_nop_();_nop_();
           SBUF=SS;
      while(TI==0){}
           TI=0;
           OS=0;
}

void serail_int (void) interrupt 4
{
  unsigned char SR;
  if(RI==1)
      {
         SR=SBUF;
         RI=0;
         if(RN==0)
         {
              if(SR==0X80)
              {
               RN++;
              }
         }
         else if(RN==1)
         {
            if(SR!=0)
               {
               RN=0;
               }
            else {RN++;}
         }
         else if(RN==2)
               {
               RN++;
               }
         else if(RN==3)
              {
              RN++;
              order=SR;
              }
         else if(RN==4)
             {
             OS=NS;
             NS=1;
             RN=0;
             delay=0;zj=zj&&0x0fb;detail=detail&&0x0fd;
             }
     }
}

void main(void)
{
   PCON=0x00;
   TMOD=0x20;
   TH1=0x0fd ;  TL1=0x0fd ;           /*波特率设为9600*/
   TR1=1;
   SCON1=0x50;                   /* 串行1方式1，定时器1*/

   initialize();
while(1)
{  EA=0;
   ES=0;
   TR1=0;
   PCON=0x00;
   TMOD=0x20;
   TH1=0x0fd ;  TL1=0x0fd ;           /*波特率设为9600*/
   TR1=1;
   SCON1=0x50;                   /* 串行1方式1，定时器1*/

   campos();                     /*读相机的焦距值*/
   jh=tout/(0x100);
   jl=tout%(0x100);
   TR1=0;
   TMOD=0x21;
   TH1=TL1=0x0fd;
   PCON=0x80;
   SCON=0x0d0;
   TR1=1;
   EA=1;
   ES=1;


  if(OS==1)
  { send();
  }
}
}