VAG-COM/VCDS EVERYTHING

[paskuale]

Maybe because:

1 - Your LPT cable isn't correct. Check the schematics again.

2 - You have short circuits in the thin wires that are connected to the ATMEGA. Recheck all connections with a multimeter.

3 - You haven't connected pin 25 of LPT port to GND.

4 - You haven't soldered the shield wire into the metallic part of the DB25 connector and then plug it into GND.

5 - You should try lower resistor. Try 820ohm, 680ohm, 560ohm, 470ohm, 390ohm... But, don't forget that those resistors are there to protect the LPT port, not the ATMEGA. Don't push the limits of the LPT port... so don't use resistors lower than 100ohm.

6 - Your LPT port is not set to ECP/EPP mode in BIOS.

1 - In the schematics the image of LTP port is the front or rear ?
2 - I will check if there is a short circuit on Atmega pins.
3/4 - I connect the LTP pin 25 with metal part of DB25 and with 12v GND.
5 - I will try with lower resistors.
6 - My LTP is set to EPP in BIOS, I should change ?

When I try in ponyprog Interface test and calibration they are Ok !

When I try to program Atmega the USB Vagcom cable must be plug in USB pc port ?

Thanks

[tr3ce13]

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[tr3ce13]

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[Qwarz]

I have do it and the same problem, failed self test :-(

I flashed it with "flash183.rar" "Dumps__arash__908.0.rar" "908 VCDS.ept 908WORK.ept" "FTDI EEPROM VCDS 908 FT232BL.rar"

To program the atmega I erase, program security, program flash and then program data, any wrong ??

Any other dump or ftdi eeprom ???

Thanks

Dumps are correct.Try to programm in other order:erase, program flash,program eeprom, set security bits.

[dieseltechnika]

I'm looking for 1.83 english eeprom, working

[mattydr67]

I'm looking for 1.83 english eeprom, working

Try a liitel bit to read this thread and you'll find it.
Please just do this.
Good lukx and X-mas regards to all of our mates

[KenshinPT]

1 - In the schematics the image of LTP port is the front or rear ?

I'm not quite sure. However, the schematics is very clear because it's marked the pin numbers. Then you just need to compare with the pin numbering in the LPT DB25 plug. The numbering marks in the LPT DB25 plug aren't very visible but they are there.

2 - I will check if there is a short circuit on Atmega pins.

OK

3/4 - I connect the LTP pin 25 with metal part of DB25 and with 12v GND.

That's correct!

5 - I will try with lower resistors.

OK

6 - My LTP is set to EPP in BIOS, I should change ?

In my BIOS the LPT port is set to ECP/EPP and I can not change to ECP or EPP only. If in your BIOS you can change to ECP only, just give it a try

When I try in ponyprog Interface test and calibration they are Ok !

This message is not 100% accurate. A guy here get that message and his cable had lots of mistakes.

When I try to program Atmega the USB Vagcom cable must be plug in USB pc port ?

It's irrelevant. The cable can be either connected to USB port or not. But hey... why don't you test if that's the problem. Try to program once when it's puggled and other when it's not.

[scofield31]

Hello, I want vcds 908 or 10.6 dump but in french please.
thanks in advance

[tomasfilip]

Hello,

I have two different (dead) Chinas clone, both I found here on forum

http://www.digital-kaos.co.uk/forums...tml#post845276

http://www.digital-kaos.co.uk/forums...tml#post894673

I want to re-flash up to 908, so I red a lot of, now I have picture how to do it, but what I found/saw

1. Can you anybody explains me, what STC chips doing and why resistors/transistor/STC needs to be removed for one type of clone? (ok, both of my clone hasn't STC chip, but I don't found answer)

2. I'm curious about EEPROM contains for atmel chip, when I compared contains of various bin/hex files in hex editor, more-than-less contains are same, the differents are in the end. Let say 2D 41 5A 2D EA B3 but I also download with 00 00 00 00 EA B3 (I guess, that isn't correct, because if latest two serial are checksum, that checksum cannot be valid).. Any experience?

3. Is there some relations ship between serial in FTDI chip and "serial number" (I think, there is) in atmel eeprom? Because lot of " 100% works" eeprom settings for FTDI has RT00001 as serial number. And I guess that can't works properly

and, btw.. really thanks to xoom, KenshinPT, bibkare, ipejasinovic,ozzy_rp.. Really good job here

[KenshinPT]

I found this question/answer about the LPT configuration.

I don't have know-how about this topic to say if this is correct or not... but here it is:

Hi,

I'm surprised HP doesn't put the answer in their manuals, since it's so basic a question. You'll have to send an email question on this to HP support to get the correct answer. I did this and they answered in a reasonable time.

For my HP Deskjet 812C they said ECP. Below is a copy of that message in full. Read it carefully - I'll be giving a quiz later.

QUESTION:
Printer works fine, but I'd like to know which gives the fastest
printing:
1. USB
2. Parallel port @ SPP
3. Parallel port @ ECP
4. Parallel port @ EPP
5. Parallel port @ ECP+ EPP
My PC's BIOS allows any of the
above settings & I've used 2 &
3 above without a problem.

ANSWER:
Thank you for contacting Hewlett-Packard's Customer Care.

Hi Gerald:

I understand you want to know which port gives the fastest printing.
The ECP port is the fastest port and the one recommended for our
printers. EPP would be the second fastest port, and the SPP port is
the slowest.

Port descriptions:
ECP
ECP stands for Extended Capabilities Port. This setting
allows the computer's parallel port to send and receive data
in both directions simultaneously. This is the preferred and
fastest type of communication available for newer printers.
ECP is the preferred port setting for most HP DeskJet
printers.

SPP, output, compatible, standard, or Centronics
These settings allow the computer's parallel port to operate
in an output-only mode, meaning data can be sent out to the
printer. The parallel port can also receive limited feedback
from the printer. These settings can also be used as the
alternate port setting for HP DeskJet printers if the ECP
port setting is not available.

Standard bidi, bidi, or bidirectional
These settings allow the computer's parallel port to send
and receive data, but only in one direction at a time,
either sending or receiving.
For information on checking or changing the parallel port
configuration for your computer, see the computer
documentation.

EPP is used for high speed read/write peripheral devices, such a disk
drives or CD ROM.


The speed of the LPT and USB ports are as follows:

LPT port: 90 Mb/Sec
USB port: 12 Mb/Sec

source: BIOS setting for printer? - AnandTech Forums

[tomasfilip]

As I have experience from parallel programmer, there should be always SPP (standard or normal) mode for programming.. Are you sure than BIOS cannot support SPP mode? Maybe looks for settings in windows settings (control panel->System->Device manager..) because in EPP/ECP mode, programmer should have problems

[tomasfilip]

Today I succesfully repair one china cable.

Finaly, I used 1.83 firmware (posted by ozzy_p), Atmel was programmed by ponyprog, the lock bits was set regarding manual (tutorial.pdf) from this forum..

The patch sofware for vcds was used "908_mod.rar" were I replaced files from package in 805 version. Than cable works properly (version is English) in Audi car

FTDI is fixed as mentioned before here, no CPLD(GAL) updates

What I finally want is fix Czech version of VCDS, unfortunatelly in this version is list of blacklist/whitelist serial codes and I haven't correct contains for small eeprom in Atmel..

Have some crack/patch for VCDS for correct behavior? Version 805 should be OK

Without correct eeprom contains, firmware in Atmel cannot start properly and VCDS tell, "no interface found", but firmware is 100% working (when I changed eeprom contains, cable works well)

[uztozacalo]

Today I reflashed successfully my dead 704 to 908. Thanks to this forum. A little summary:

China BL type without STC

Atmega pins 1,2,3,4 soldered to PCB. Thanks to some chinese engineer that I dont have to solder directly to atmega :-) I bought a flash-ready PCB design two years ago and I dont ever knew about it :-)

Everything went fine. Used 970k resistors, LPT in ECP mode. Ponyprog2000 latest version.

Thank to all who contributed in this thread. Thank you very much.

I dont use my cable for profit. Only for my 2000 vw golf :-) but i am very happy that i flashed my device successfully.

[SmrekcPRO]

Hi to all!
I've just upgraded my "noname" clone from 704.1 to 908 with files from post 453 and it works.
Thank you for all the info that I found on this forum.

Because somehow ponyprog doesn't work with my STk500 Atmel programmer, I just used PonyProg, to split "dump file" in two separate files (FLASH and EEPROM). Than I used CodevisionAVR to programm the Atmel.

Another thing that I haven't found on the forum is, that my type of clone has programming connections already routed to the side of the PCB, so I just had to solder some pins to the holes and did not have to perform any soldering at Atmel pins (shown on Images below).


BOT.jpg - ImageHost.org
TOP.jpg - ImageHost.org

Best Regards

Smrk

[Qwarz]

Your interface is "old" fashion style
They are the best becuse there is no STC onboard also PCB is preapared for pins needed by programming