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Author Topic: TCU, TIP Chip, automatic transmission tuning, reading writing etc.  (Read 192755 times)
ported2flow
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« Reply #120 on: May 22, 2014, 04:01:58 PM »

hey

i just watched this thread and must say nice work ddillenger very interesting like your work you put into the bdm stuff!! great!!
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ddillenger
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« Reply #121 on: May 25, 2014, 11:45:19 PM »

We can now read/write the eeprom, as well as the main flash. I think this is about as done as it's going to get. We can read and write across the entire line of Bosch AG5 TCU's quickly and reliably.

Big thanks to USBJTAG. Without his interface, and help, this would not have been possible. Anyone interested in giving this a shot should go to their site:

usbjtag.com

and order an interface Smiley
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sweegie
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« Reply #122 on: May 26, 2014, 02:04:04 AM »

Interesting stuff DD. Do you get full access to the MCU with this kit while the processor is running?
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Cloudforce
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« Reply #123 on: July 08, 2014, 11:47:03 PM »

good morning,

i came across this thread a few hours before, while searching for OLS816 plugin. I´m very impressed by the results so far and i would like to ask if anyone is able to do checksumm correction on those files?

i´m not directly using the same EGS/TCU, but i´m using the ZF5HP19, too. While yours is front- or 4wd, mine is used in rearwheeldrive, but overall its pretty the same.

The inside of the TCU looks very identical to yours and the files look pretty identical, too. that said, if obvious that the maps are somewhat shifted in position and therefore much difference in winols while comparing.

i´ll attach some files i´ve taken so far and hope they will help others.

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gremlin
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« Reply #124 on: August 13, 2014, 12:40:01 AM »

We can now read/write via BDM. It requires jumping two pins to shutdown the hardware watchdog, and disabling the software watchdog

Can you show points for WD shutdown on the board photo or using MC68376 CPU pins description ?
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ddillenger
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« Reply #125 on: August 13, 2014, 11:16:49 AM »

Take a look one page back. You see the wire I added to the BDM? Just pull that high (12v with a 130ohm resistor) and that disables the hardware watchdog.
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gremlin
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« Reply #126 on: August 13, 2014, 12:30:21 PM »

Just pull that high (12v with a 130ohm resistor) and that disables the hardware watchdog.

I've seen the wire and +12V connection point.
But it's difficult to determine exactly on this photo what pin on BDM connector is used.
Which pin number?

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ddillenger
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« Reply #127 on: August 13, 2014, 12:36:05 PM »

Pin 7 (reset). You should find that pin 11 is +12v and can be used to pull the reset high.
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gremlin
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« Reply #128 on: August 13, 2014, 01:17:23 PM »

Pin 7 (reset). You should find that pin 11 is +12v and can be used to pull the reset high.
TNX!
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nbdiy
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« Reply #129 on: December 05, 2014, 02:01:24 AM »

Searching for the Dump´s
4D0927156AA 3,3tdi
4D0927156EG 6.0 W12
4B0927156FB 4,2T RS6

I want to change the shift rev´s of the W12 and am hopeful to find it with those other dumps, because the transmission of these cars are nearly the same type. If I am sucessfull I´ll post it here.


@ddillenger: I´m interested in your read/write method: If I understand it right you don´t need much more than a good jtag programmer and power supply? Or do I need a appropriate software for the jtag programmer?
I don´t got a good jtag programmer yet, so I would order your suggested tool, but I would like to know if there is something more that is needed?


If someone is interested: I got serveral Dumps of 2,5tdi tcu´s where (imo) torque limiter and shifting time is been adapted (Only 3 values on hexdump), but I dind´t tested so far. I could send ori and mod via pm to those who are active here and are willing to share information here, too...
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audinutt
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« Reply #130 on: December 31, 2014, 06:07:15 PM »

TNX!
I am very frustrated with myself at this point.  Angry

 I have my usbbdm hooked to the corresponding pins on the tcu board.
I also have a 12v power supply connected and supplied +12v to 55 and 54
-12v is connected to 34 and 35

I have 3 390ohm resistors in parallel and they give me 130ohms. I have this connected to pin 12 (verified +12v) also tried direct to my +12v source.
On the other side of the resistor I have pin 7 from the bdm and pin 7 from the tcu tied in. They are seeing roughly 5v.

I don't see anywhere in the tread regarding connecting to the K-line is this needed? Huh

It populates info and performs a read but doesn't read anything from the eeprom
Code has plenty of info.
BDM does stay ON once the reset is sent to it.

I am in the process of uploading a video.
I have been bugging ddillenger a LOT and I am sure he is tired of my elementary questions.
Hopefully this can help someone else in the future.

This is on a 2002 audi a8 tcu for reference.


-Richard
« Last Edit: December 31, 2014, 06:09:12 PM by audinutt » Logged
jaheem
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« Reply #131 on: March 01, 2015, 07:28:06 AM »

Hello Guys and a big hello ddillenger.
Have absolutely no experience in this project .
I've already bought the USBBDM tool and am now put at all in motion .
I still have few questions to you all, the connector on the controller what actually dare to go why do I need and what is the pinout here Huh
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jaheem
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« Reply #132 on: March 02, 2015, 04:56:33 AM »

hi guys.
can anybody help me a little?
need for connection plan from the connector on the TCU which color of the cable are with how much power Huh?
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ddillenger
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« Reply #133 on: March 02, 2015, 08:53:52 AM »

Pins 55 and 54 power
Pins 34 and 35 ground
Pin 88 k-line
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jaheem
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« Reply #134 on: March 04, 2015, 05:29:24 AM »

Hello people , wanted to ask who can grab me a bit under the arms and help me !
Have now installed the Usbjatg tool , the problem was standing in the BDM tool to off and remains !!!
have all tried setting is always set to off :- (
Now want the 10 Color cable to solder on the TCU someone has the pinout cable which comes to which pin?
And in the Tool ask please detect Blitz what is this?
Many thanks for your help !!!
« Last Edit: March 04, 2015, 05:31:03 AM by costanza » Logged
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