How to JTAG a DM500

[Devilfish]

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

[Alpha4321]

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 ?

[yahoo.com.pl]

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.

[Alpha4321]

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 ?

[Bigmemo]

hello,

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

thx

[Zozozo]

Hello,
Problem with "Conect"

[chopdre]

Jtag error

Keep getting an error every time I run the loader.

[doctor-john]

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

[Alpha4321]

yes .it disapear after i click on write

[cardreader]

jtag

have someone testit and dm itis a live pm me thanx

[cardreader]

hi again

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

[cozierj]

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

[Devilfish]

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.

[bro]

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

[Jojo2003]

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