File content as of revision 1:e216fd4e8d9c:

#include "mbed.h"
#include "OV6620reg.h"
#include <FastPWM.h>
#include "ST7735_TFT.h"

#define OV6620_WRITE (0xa2)
#define OV6620_READ  (0xa2)
#define OV6620_WRITEWAIT (20)
#define OV6620_NOACK (0)
#define OV6620_REGMAX (201)
#define OV6620_I2CFREQ (39000)

#define SIZEX  176
#define SIZEY 144
#define SIZE 25344
//
// OV6620 + FIFO AL422B camera board test
//
ST7735_TFT TFT(p5, p6, p7, p8, p9, p10,"TFT");// SDA, nc, SCK,CS,A0,RESET
int per=2;
int pwi=1;

class OV6620 
{
public:

volatile int LineCounter ;
    volatile int LastLines ;
    volatile bool CaptureReq ;
    volatile bool Busy ;
    volatile bool Done ;  
        void CaptureNext(void);
        bool CaptureDone(void);
            void WriteReg(int addr,char data);
        void Reset(void);
        void test(void);
        void InitQQVGA(void);
            char ReadReg(int addr);
    int ReadOneByte(void);
    int ReadOneWord(void);
    void ReadStart(void);
    void ReadStop(void);
    void VsyncHandler(void);
    void PclkHandler(void) ;
    void wait_posedge(InterruptIn pin);
    void wait_posedge(InterruptIn pin);
    
    OV6620(
        PinName sda,// Camera I2C port
        PinName scl,// Camera I2C port
        PinName vs, // VSYNC
        PinName hr, // HREF
        PinName pic ,// /pclk
        PortName port, // 8bit bus port
        int mask, // 0b0000_0M65_4000_0321_L000_0000_0000_0000 = 0x07878000
        PinName xk
    ) : camera(sda,scl),vsync(vs),href(hr),pclk(pic),dataP(port,mask),xclk(xk)

    {
        pc.baud(115200) ;

        xclk..period(1/24000000.0);
        xclk.write(.5);
        TFT.claim(stdout);                          // Send stdout to the TFT display
        TFT.background(Black);                      // Set background to black
        TFT.foreground(White);                      // Set chars to white
        TFT.cls();                                  // Clear the screen
        TFT.set_orientation(3);

        camera.stop() ;
       camera.frequency(OV6620_I2CFREQ) ;
       // vsync.fall(this,&OV6620::VsyncHandler) ;
     //   href.rise(this,&OV6620::HrefHandler) ;
      // pclk.rise(this,&OV6620::PclkHandler) ; // ????????????? blocca tutto il programma
        CaptureReq = false ;
        Busy = false ;
        Done = false ;
        LineCounter = 0 ;
        FrameCounter = 0 ;
        PixCounter = 0 ;
        camera.start();
    }
    protected:
        I2C camera ;
    //InterruptIn vsync,href,pclk;
    DigitalIn vsync,href,pclk;
    PortIn dataP ;
    FastPWM xclk;
        };