24C02 EEPROM dump

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1

Hi all,

any idea how i can dump the contents of a 24C02 EEPROM to a bin file using a panda and I2C ?

2

There was a good tutorial on DP about their BusPirate and different EEPROMs. That might give you an idea on how to approach this with FEZ. Good luck!

3

Do you have an SD card on the Panda? If you do then it is really about 20 lines of code. I did something similar, but lost the code when I formated my PC…

4

No, but I do have SD on the Cobra/Rhino, could use that one too.

Now if you could only remember the code… :smiley:

I’m trying to revive an old xbox, but the HD is dead and the only way to put a new HD in it is when you have the HD serial from the EEPROM.

5

BTW Here is the link I was talking about:

http://dangerousprototypes.com/docs/3EEPROM_explorer_board

6

I thought it was hacking related. I did it to try and hack my printer cartridge. My effort didn’t go so well as samsung now uses a Challange And Response to unlock the eeprom. :slight_smile:

It struck me lst night while I was wasing dishes that, although I DID reinstall windows, I reinstalled it to a new drive. The old drive should be arround, but it started giving bad sector issues. I will try an locate the code when my wife and I come back form an outing later today…

1 Like
7

cool…

8

Sorry, that drive is beyond help. Windows just wants to format is and Seagate’s tools says the drive has unrecoverable bad sectors…

Sorry…

9

No problem, thanks for trying :wink:

10

Look what I found. Seatools said the drive it dead, but it is alive enough to get some things off…

This is the code that I used. My rom needed an unlock code to read the rom, hence the strange write transaction. I don’t have VS2010 on this PC so I will rewrite it tomorrow for a more normal eeprom…

using System.Threading;
using System.Text;
using Microsoft.SPOT;
using System.IO;
using Microsoft.SPOT.IO;
using GHIElectronics.NETMF.IO;
using Microsoft.SPOT.Hardware;



namespace Printer_Rom_Reader
{
    public class Program
    {
        public static void Main()
        {
            // Blink board LED

                Thread.Sleep(500);





            PersistentStorage sdPS = new PersistentStorage("SD");
 
            // Mount the file system
            sdPS.MountFileSystem();

            string rootDirectory = VolumeInfo.GetVolumes()[0].RootDirectory;
            FileStream FileHandle = new FileStream(rootDirectory +
                                          @ "\Read2.bin", FileMode.Create);



            //Find device
            for (ushort i = 0; i < 127; i++)
            {
                I2CDevice a = new I2CDevice(new I2CDevice.Configuration(i, 100));
                I2CDevice.I2CTransaction[] Read = new I2CDevice.I2CTransaction[1];
                I2CDevice.I2CTransaction[] Write = new I2CDevice.I2CTransaction[1];
                byte[] ReadData = new byte[150];
                byte[] WriteData = new byte[]{0x00,0x88,0x01,0x00,0x08,0xA9,0x9F,0x39,0x56,0x98,0xA5,0xDD,0x82,0xBA,};
                Read[0] = I2CDevice.CreateReadTransaction(ReadData);
                Write[0] = I2CDevice.CreateWriteTransaction(WriteData);
                int r = a.Execute(Read, 1000);
                if (r > 0)
                {
                    r = a.Execute(Write, 1000);
                    r = a.Execute(Read, 1000);
                    FileHandle.Write(ReadData, 0, ReadData.Length);
                }
                a.Dispose();
            }

            sdPS.UnmountFileSystem();

        }

    }
}