ArduCAM-F problem: the picture can not be seen at the computer

Using Arduino Project Guidance
#1

Hello!

I’m doing a project whit an Arduino UNO, ArduCAM-F (without GLCD) and MT9D111 camera. I take a picture which is saved in a MicroSD.

When I’m trying to see the pictures at computer it only show me this kind of pictures

This code comes from ArduCAM’s page http://www.arducam.com/download/ but the code belongs to ArduCAM-LF wich has a GLCD, so I’m wondering if there is any differance that causes the problems.

This is the code I’m using:

#include <UTFT.h>
#include <SD.h>
#include <Wire.h>
#include <ArduCAM.h>
#include <avr/pgmspace.h>


const char bmp_header[54] PROGMEM =
{
      0x42, 0x4D, 0x36, 0x58, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x36, 0x00, 0x00, 0x00, 0x28, 0x00, 
      0x00, 0x00, 0x40, 0x01, 0x00, 0x00, 0xF0, 0x00, 0x00, 0x00, 0x01, 0x00, 0x10, 0x00, 0x00, 0x00, 
      0x00, 0x00, 0x00, 0x58, 0x02, 0x00, 0xC4, 0x0E, 0x00, 0x00, 0xC4, 0x0E, 0x00, 0x00, 0x00, 0x00, 
      0x00, 0x00, 0x00, 0x00, 0x00, 0x00
};
  
#define SD_CS 9 
#define BMPIMAGEOFFSET 54


//UTFT(byte model, int RS, int WR, int RD, int CS)
UTFT myGLCD(ITDB32S,A2,A1,A0,10);   // Remember to change the model parameter to suit your display module!
//ArduCAM(byte model,int RS, int WR, int RD, int CS)
ArduCAM myCAM(MT9D111,A2,A1,A0,A3);

void setup()
{
  Wire.begin();   
  myCAM.write_reg(2, 0x00);
  
  if (!SD.begin(SD_CS)) 
  {
    //while (1);
  }
  
  myCAM.InitCAM();
  
  // Setup the LCD
  myGLCD.InitLCD();
  myCAM.write_reg( 0, 0x01);
}


void GrabImage(char* str)
{
  File outFile;
  char VH,VL;
  int i,j = 0;
  outFile = SD.open(str,FILE_WRITE);
  if (! outFile) 
    return;

  myCAM.write_reg( 2, 0x00);    //Switch to MCU
  myGLCD.resetXY();				//Reset the access location
  myCAM.write_reg( 2, 0x02);    //Switch to MCU Read
  
  //Write the BMP header
  for( i = 0; i < 54; i++)
  {
    char ch = pgm_read_byte(&bmp_header[i]);
    outFile.write((uint8_t*)&ch,1);
  }
  //Reverse the BUS direction
  DDRD = 0x00;
  
  digitalWrite(10,LOW);			//Assert the LCD CS
  myGLCD.LCD_Read_Bus(&VH,&VL);
  for(i = 0; i < 320; i++)
  for(j = 0; j < 240; j++)
  {
    myGLCD.LCD_Read_Bus(&VH,&VL);
    VL = (VH << 7) | ((VL & 0xC0) >> 1) | (VL & 0x1f);
    VH = VH >> 1;
    outFile.write(VL);
    outFile.write(VH);
  }
  digitalWrite(10,HIGH);		//Deassert the LCD CS
  
  //myCAM.write_reg( 2, 0x01);  //Switch to CAM
  outFile.close();
  return;
}

void loop()
{
  char str[8];
  static int k = 0;
  uint8_t temp;
  myCAM.write_reg( 2, 0x01);		 //Switch to CAM
  
  while(1)
  {
    temp = myCAM.read_reg(0x81);
    if(!(temp & 0x01))				 //New Frame is coming
    {
       
       myCAM.write_reg( 2, 0x00);    //Switch to MCU
       myGLCD.resetXY();
       myCAM.write_reg( 2, 0x01);    //Switch to CAM
       while(!(myCAM.read_reg( 0x81)&0x01)); //Wait for VSYNC is over
       
    }
    else if(temp & 0x02)
    {
       k = k + 1;
       itoa(k, str, 10); 
       strcat(str,".bmp");

       GrabImage(str);
       //while(!(myCAM.read_reg( 0x81)&0x01)); //Wait for VSYNC is over
    }
  }
  return;
}

It doesn’t send me error messages.

Greetings from México! :slight_smile:

1.jpg

#2

so I’m wondering if there is any differance that causes the problems.

Without a GLCD, what do you supposed that:

  myGLCD.resetXY();				//Reset the access location

and

    myGLCD.LCD_Read_Bus(&VH,&VL);
    VL = (VH << 7) | ((VL & 0xC0) >> 1) | (VL & 0x1f);
    VH = VH >> 1;

are going to accomplish? My guess would be nada, zip, zilch, and nothing. This seems to be consistent with what you are seeing.

Although, I can’t really imagine what the link is between the camera and the GLCD. It appears, though, that the data written to the file is data obtained from the GLCD, not data obtained (directly) from the camera.

#3

Ok thank you! So I need the GLCD to complete successfully the process or what I should have to change to work without the GLCD?

#4