File content as of revision 0:f309a2b2f27b:

#include "mbed.h"
#include "OV7670.h"
#include "FastPWM.h"

#define SIZEX (160)
#define SIZEY (120)
#define SIZE 19200

OV7670 camera(
    p28, p27,           // SDA,SCL(I2C / SCCB)
    p21, p22, p23, p24, // XCLK, PCLK, VSYNC, HREF
    Port0, 0x07878000); // D0-D7 -> P11-p18
    
Serial host(USBTX, USBRX);
DigitalOut status(p20);

unsigned char bank0[SIZE];
unsigned char *bank1 = (unsigned char *)(0x2007C000);

int hexToInt(int i) {
    if(i >= '0' && i <= '9') return i - '0';
    else if(i >= 'A' && i <= 'F') return i - 55;
    else return 0;
}

int getHexWord(Serial *ser) {
    int b1 = ser->getc();
    int b2 = ser->getc();
    return (hexToInt(b1) << 4) | hexToInt(b2);
}

void sendImage() {
    // Write the image to the serial host
    for (int i = 0; i < SIZE; i++) {
        while(!(host.writeable())) {}
        host.putc(bank0[i]);
        while(!(host.writeable())) {}
        host.putc(bank1[i]);
    }
}

int main() {
    host.baud(115200);
    
    // Initialize a 12Mhz XCLK for the camera
    camera.Init();
    
    // Reset camera on power up
    camera.Reset();
    
    // Set up for 160*120 pixels RGB565
    camera.InitQQVGA();

    char c;
    while(1) {
        if(host.readable()) {
            c = host.getc();
        } else {
            continue;
        }
        if(c == 'r') {
            int reg = getHexWord(&host);
            host.printf("%d\n\r", camera.ReadReg(reg));
        } else if(c == 'w') {
            int reg = getHexWord(&host);
            int val = getHexWord(&host);
            camera.WriteReg(reg, val);
            host.printf("%d\n\r", camera.ReadReg(reg));
        } else if(c == 't') {
            camera.scopeTest(&host);
        } else if(c == 'c') {
            status = 1;
            int bytes = camera.captureImage(bank0, bank1);
            //host.printf("%d\n", bytes);
            sendImage();
            status = 0;
        }
    }
}