File content as of revision 1:e216fd4e8d9c:

#include "mbed.h"
#include "OV6620reg.h"
#include "OV6620.h"

    void OV6620::CaptureNext(void) {
        CaptureReq = true ;
        Busy = true ;
    }

    bool OV6620::CaptureDone(void) {
        bool result ;
        if (Busy) {
            result = false ;
        } else {
            result = Done ;
            Done = false ;
        }
        return result ;
    }

    void OV6620::WriteReg(int addr,int data) {
        camera.start();
        //camera.write(CAMERA_I2C_WRITE_ADDR);
        camera.write(addr);
        camera.write(data);
        camera.stop();
        wait_us(50);
    }

    int OV6620::ReadReg(int addr) {
        int data ;
        camera.start() ;
        camera.write(OV6620_WRITE) ;
        wait_us(OV6620_WRITEWAIT);
        camera.write(addr) ;
        camera.stop() ;
        wait_us(OV6620_WRITEWAIT);
        camera.start() ;
        camera.write(OV6620_READ) ;
        wait_us(OV6620_WRITEWAIT);
        data = camera.read(OV6620_NOACK) ;
        camera.stop() ;
        return data ;
    }

    int OV6620::Rreg(int addr) {
        int data ;
        camera.start() ;
        camera.write(OV6620_WRITE) ;
        wait_us(OV6620_WRITEWAIT);
        camera.write(addr) ;
        camera.stop() ;
        wait_us(OV6620_WRITEWAIT);
        camera.start() ;
        camera.write(OV6620_READ) ;
        wait_us(OV6620_WRITEWAIT);
        data = camera.read(OV6620_NOACK) ;
        camera.stop() ;
        return data ;
    }

    void OV6620::Reset(void) {
        WriteReg(0x12,0xa4) ; // RESET CAMERA
        wait_ms(200) ;
    }

    void OV6620::Wreg (int addr,int data) {
        camera.start();
        camera.write(CAMERA_I2C_WRITE_ADDR);
        camera.write(addr);
        camera.write(data);
        camera.stop();
        wait_us(50);
    }

    void OV6620::InitQQVGA(void) {

        xclk..period(1/24000000.0);
        xclk.write(.5);

        Reset();
        Reset();
        WriteReg(CLKRC,0x00);
        WriteReg(COM_A,0x24);
        WriteReg(COM_C,0x20);

        wait(0.1);
    }

    // vsync handler
    void OV6620::VsyncHandler(void) {
FrameCounter++;
    }

    // href handler
    void OV6620::HrefHandler(void) {
        LineCounter++ ;
    }

    // pclk handler
    void OV6620::PclkHandler(void) {
        PixCounter++ ;
    }

    void OV6620::wait_posedge(InterruptIn pin) {
        while(pin);
        while(!pin);
    }

    void OV6620::wait_negedge(InterruptIn pin) {
        while(!pin);
        while(pin) ;
    }

    // Data Read
    int OV6620::ReadOneByte(void) {
        int result = (((dataP&0x07800000)>>19)|((dataP&0x078000)>>15));
        return result ;
    }


    void OV6620::shot(void) {
     uint8_t b1,b2;
        int x = 0,pix=0; // col
        int y = 0,line=0; // row
        int n = 0; //  px number
        int r,g,b;
    
        while(vsync); 
       while(!vsync); //   pc.printf("!vsync 1  %d  %d  %d\r\n", vsync& 0x1,href& 0x1,pclk& 0x1);
          while(vsync); 
       while(!vsync);
       while(vsync);
       
       for ( y=0; y<SIZEY; y++){
        while (!href);
        for ( x=0; x<SIZEX; x++){
           
            while(!pclk);
            if (line>0){
               b1=dataP;
             result=dataP.read();
            }
            while (pclk);
        
         while(!pclk);
            if (line>0){
               b2=dataP;
             result=dataP.read();
            }
            while (pclk);
               
               r=((bank1 & 0x1f)) ;
            g= ((bank1&0xe0)>>5 ) | ((bank0&0x7)<<3);
                 b=((bank0 & 0xf8)>>3 );
                 colour = (((r<<11)&0xF800)|((g<<5)&0x7E0)| (b&0x1f));
          TFT.pixel(x,y,colour);
        }
        while(href);
    }
        
        printf("x , y =  %d , %d      n= %d\r\n", x,y,FrameCounter);
        printf("frame\n");
        n=0;
        y=0;
        x=0;
        /*
        for(y=0; y<SIZEY; y++) {
            for(x=0; x<SIZEX; x++) {
//         pc.printf("%d %d\n",n,byt[n]);
              //   pc.printf("%u\n",b1[n]);
                //TFT.pixel(x,y,b1[n]);
                n++;
            }
        }
        */
        printf("enddddddddd frame\n");
    }// SHOT
}