How to JTAG a DM500

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  • Devilfish
    Administrator
    • Feb 2008
    • 7872

    #1

    How to JTAG a DM500

    There's now a guide, pictures and all the tools you need to JTAG your DM500.

    You will need these tools if your clone has been zapped by the Gemini 4.3.1 image.

    Untested by myself, don't use Gemini .

    Njoy!

    How to JTAG a DM500

    Digital Kaos
    Attached Files
    Last edited by Devilfish; 17 September, 2009, 10:14.
  • Alpha4321
    Newbie
    • Apr 2008
    • 8

    #2
    dreamflash for windows quits

    hi

    all works fins but when i click on write the program quits and nothing happens ? any idea why is it doing that ?

    Comment

    • yahoo.com.pl
      Newbie
      • Apr 2008
      • 1

      #3
      Pinouts

      The connections are:

      LPT————–> Dreambox/Clone

      2 –> 100 ohms –> 11 ( Halt)

      3 –> 100 ohms –> 9 ( Tms )

      4 –> 100 ohms –> 7 ( Tck )

      5 –> 100 ohms –> 3 ( Tdi )

      11 –> 100 ohms –> 1 ( Tdo )

      25 —————— 16 ( Ground)

      Th pins 18, 19, 20, 21, 22, 23, 24 e 25 of the port LPT must be shunted between themselves, like commercial jtags has.

      Comment

      • Alpha4321
        Newbie
        • Apr 2008
        • 8

        #4
        all the connections are correct usinf 100 ohm program connects fine and indentify cpu and flash ,but still when i click on write ,the program quits and nothing is written to the dm500 .what could be the problem ?

        Comment

        • Bigmemo
          Newbie
          • Apr 2008
          • 3

          #5
          hello,

          that's it what i need. i hope it will work because it's my firsttime.

          thx

          Comment

          • Zozozo
            Newbie
            • Apr 2008
            • 1

            #6
            Hello,
            Problem with "Conect"

            Comment

            • chopdre
              Newbie
              • Apr 2008
              • 6

              #7
              Jtag error

              Keep getting an error every time I run the loader.

              Comment

              • doctor-john
                Newbie
                • Apr 2008
                • 1

                #8
                nothing ...... it disapears after few seconds and dont write the flash right ....

                Comment

                • Alpha4321
                  Newbie
                  • Apr 2008
                  • 8

                  #9
                  yes .it disapear after i click on write

                  Comment

                  • cardreader
                    Newbie
                    • Apr 2008
                    • 4

                    #10
                    jtag

                    have someone testit and dm itis a live pm me thanx

                    Comment

                    • cardreader
                      Newbie
                      • Apr 2008
                      • 4

                      #11
                      hi again

                      i want to make jtag with lpt can someone help me pls

                      Comment

                      • cozierj
                        Newbie
                        • Apr 2008
                        • 9

                        #12
                        Jtag

                        Hi all,

                        Does this jtag work ?
                        It seems a though no one has been able to get it working successfully !!

                        What is the scoop on it ?

                        Regards
                        jr

                        Comment

                        • Devilfish
                          Administrator
                          • Feb 2008
                          • 7872

                          #13
                          unfortunately it's a grey area. no-one is going to brick their box on purpose just so they can try and JTAG it.

                          If you have a dead box then you are simply going to have to persevere and hopefully you'll be a mentor to others.

                          Comment

                          • bro
                            Member
                            • Mar 2008
                            • 72

                            #14
                            waiting for a jtag lead from tailor made circuits then i will try it myself,hopefully will be here tomorrow
                            in the meantime i ordered a 600pvr

                            Comment

                            • Jojo2003
                              Newbie
                              • Apr 2008
                              • 3

                              #15
                              I tryed all kinds of jtag..No luck at all...
                              But..take a look at this ..h**p://www.dreamboxrepair.com

                              Comment

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