File content as of revision 0:c88af26224b8:

/*
Porting example Arduino code for camera module.
http://learn.linksprite.com/jpeg-camera/tutorial-of-using-linksprite-2mp-uart-jpeg-camera-with-arduino/

*/

#include "mbed.h"
#include "SDFileSystem.h"

//int csPin = 4;
 
Serial mySerial(D0, D1);          // Nucleo D0 is rx and D1 is tx for camera
 
byte ZERO = 0x00;
byte incomingbyte;
long int j=0,k=0,count=0,i=0x0000;
uint8_t MH,ML;
boolean EndFlag=0;
File  myFile;
 
void SendResetCmd()
{
  mySerial.printf(0x56);
  mySerial.printf(ZERO);
  mySerial.printf(0x26);
  mySerial.printf(ZERO);
}
 
/*************************************/
/* Set ImageSize :
/* <1> 0x22 : 160*120
/* <2> 0x11 : 320*240
/* <3> 0x00 : 640*480
/* <4> 0x1D : 800*600
/* <5> 0x1C : 1024*768
/* <6> 0x1B : 1280*960
/* <7> 0x21 : 1600*1200
/************************************/
void SetImageSizeCmd(byte Size)
{
  mySerial.printf(0x56);
  mySerial.printf(ZERO);
  mySerial.printf(0x54);
  mySerial.printf(0x01);
  mySerial.printf(Size);
}
 
/*************************************/
/* Set BaudRate :
/* <1>　0xAE  :   9600
/* <2>　0x2A  :   38400
/* <3>　0x1C  :   57600
/* <4>　0x0D  :   115200
/* <5>　0xAE  :   128000
/* <6>　0x56  :   256000
/*************************************/
void SetBaudRateCmd(byte baudrate)
{
  mySerial.printf(0x56);
  mySerial.printf(ZERO);
  mySerial.printf(0x24);
  mySerial.printf(0x03);
  mySerial.printf(0x01);
  mySerial.printf(baudrate);
}
 
void SendTakePhotoCmd()
{
  mySerial.printf(0x56);
  mySerial.printf(ZERO);
  mySerial.printf(0x36);
  mySerial.printf(0x01);
  mySerial.printf(ZERO);
}
 
void SendReadDataCmd()
{
  MH=i/0x100;
  ML=i%0x100;
  mySerial.printf(0x56);
  mySerial.printf(ZERO);
  mySerial.printf(0x32);
  mySerial.printf(0x0c);
  mySerial.printf(ZERO);
  mySerial.printf(0x0a);
  mySerial.printf(ZERO);
  mySerial.printf(ZERO);
  mySerial.printf(MH);
  mySerial.printf(ML);
  mySerial.printf(ZERO);
  mySerial.printf(ZERO);
  mySerial.printf(ZERO);
  mySerial.printf(0x20);
  mySerial.printf(ZERO);
  mySerial.printf(0x0a);
  i+=0x20;
}
 
void StopTakePhotoCmd()
{
  mySerial.printf(0x56);
  mySerial.printf(ZERO);
  mySerial.printf(0x36);
  mySerial.printf(0x01);
  mySerial.printf(0x03);
}
 
void setup()
{
//pinMode(csPin, OUTPUT);
//Serial.begin(115200);
//while (!Serial) {
//; // wait for serial port to connect. Needed for Leonardo only
//}
 
//Serial.print("Initializing SD card...");
// On the Ethernet Shield, CS is pin 4. It's set as an output by default.
// Note that even if it's not used as the CS pin, the hardware SS pin
// (10 on most Arduino boards, 53 on the Mega) must be left as an output
// or the SD library functions will not work.
//if (!SD.begin(4)) {
//Serial.println("initialization failed!");
//return;
}
//Serial.println("initialization done.");
//Serial.println("please waiting ....");  
//}
 
void loop()
{
  byte a[32];
  int ii;       
  mySerial.begin(115200);
  delay(200);
  SendResetCmd();//Wait 2-3 second to send take picture command
  delay(2000);
  SetBaudRateCmd(0x2A);
  delay(100);
  mySerial.begin(38400);
  delay(100);
  SetImageSizeCmd(0x21);
  delay(100);
  SendTakePhotoCmd();
  delay(3000);
  while(mySerial.available()>0)
  {
    incomingbyte=mySerial.read();
  }
  myFile = SD.open("pic.jpg", FILE_WRITE); //<strong><span style="color: #ff0000;">The file name should not be too long</span></strong>
  while(!EndFlag)
  {
    j=0;
    k=0;
    count=0;
    SendReadDataCmd();
    delay(5);
    while(mySerial.available()>0)
    {
      incomingbyte=mySerial.read();
      k++;
      delayMicroseconds(100); 
      if((k>5)&&(j<32)&&(!EndFlag))
      {
        a[j]=incomingbyte;
        if((a[j-1]==0xFF)&&(a[j]==0xD9))     //tell if the picture is finished
        EndFlag=1;
        j++;
       count++; 
      }
     }
 /*
    for(j=0;j<count;j++)
    {
      if(a[j]<0x10)  Serial.print("0");
      Serial.print(a[j],HEX);           // observe the image through serial port
      Serial.print(" ");
    }
*/
    for(ii=0; ii<count; ii++)
      myFile.write(a[ii]);
    //Serial.println();
  }
  myFile.close();
  //Serial.print("Finished writing data to file");
  while(1);
}