EEPROM facility

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dv52 (Australia)
Moderator

Posts: 4,529

EEPROM facility Dec 5, 2019 5:03:07 GMT Thirsty, redvw, and 4 more like this

Post by dv52 (Australia) on Dec 5, 2019 5:03:07 GMT

I've raised this matter in the forum without reply - but can someone from Voltas please explain how to use the new EPROM facility in the next-gen dongle - see screenshot below?

At face value it looks like this facility will enable users to read (perhaps even write?) the code in module firmware but I'm guessing.

If I'm correct in my guess, please explain the following:

How is the user meant to fill-out the 3 x boxes in the screen shot below: by which I mean -
- what is the nomenclature for memory hex addressing? Is the memory address a single location, or can the user enter an address range (if so, how is the latter done)?
- what is meant by length?
- am I correct in assuming that dec is simply a base 10 number - but for what (how is this field related to the address field)?
- what is meant by ALFO - and is this a user accessible field - and why is the default value of this field "33" - and what numbering base base is "33"(i.e. hex, or decimal)?
- What is R in the blue circle? Does this mean "read" and if so "read" what - the address in the module, the address in an external file, etc)?
If the user successfully completes the required entries - what is the format of the data that is returned (please include a screenshot if possible)?. Can the user export the results? If so, how is this done?
Can the user write to memory with this application? If so -
- can the user append a file containing the data to be written? If so, what is the format of this file?
- What are the steps in the write process?
Does Voltas have detailed user instructions for the new EPROM facility? If so - how can this document/video/help-file be accessed by users? If not, why not?

Thank you in advance

Don

Last Edit: Dec 6, 2019 16:57:52 GMT by cioce

Please don't PM to ask questions about car coding/repair. The better place for such dialogue is in the forum proper. That way, the wider expertise of the entire forum community can be applied to solve your problem - thank you

OBDeleven
Developer

Posts: 774

EEPROM facility Dec 5, 2019 20:57:59 GMT Thirsty, redvw, and 2 more like this

Post by OBDeleven on Dec 5, 2019 20:57:59 GMT

Hi,

Will try to explain. EEPROM function allow to perform parametrizations in similar way as VCP Upload ZDC data function.

Address - is address field from which EEPROM memory data must be read
Length - is how many bytes must be readed
ALFID - is describing in how many bytes address and length will be sent to vehicle, in most VAG cus it is 3 bytes for address and 3 bytes for length so by default it is set to 33

EEPROM reading flow
Change diagnostic session to Development
Enter security access 20103
Go to EEPROM function
Enter Address, Lenght
Press read button
Edit data
Press write button

At this time I can't make video how does it look, because I don't have vehicle for which I know exact function which can be demonstrated via EEPROM change.

p.s. if someone have access to ODIS online parametrization files can be grabbed while performing online coding of control unit, these files are saved in the following folder C:\Program Files (x86)\Offboard_Diagnostic_Information_System_Service\configuration\org.eclipse.osgi\bundles\114\data\dms2\ and it looks like:
09 - DA_009_7200_8W0_0F36_00_B92HK1TSBASISLEDERS0213.xml ;
09 - DA_009_7202_4M0_XC06_00_KKT2SX110.xml ;
09 - DA_009_7203_8W0_0F04_00_SX240B9WBTDIS.xml ;
09 - DA_009_7205_8W0_0F30_00_WISCHWASCHB9S0246.xml ;
09 - DA_009_7206_8W0_0F19_00_B9DWLEDFLHWVSCHS0246.xml ;
09 - DA_009_7207_8W0_0F06_00_S0246HUPETIGAUSSPR3.xml ;
09 - DA_009_7208_4M0_0F12_00_S0144WBTRLS.xml ;
09 - DA_009_7209_4M0_Q704_00_INNENLICHTBASIS.xml ;
09 - DA_009_720B_4M0_0M01_00_BAPBCM.xml ;
09 - DA_009_720D_8W0_0F0A_00_BIXENONLOWCOSTS0226.xml ;
09 - DA_009_720E_8W0_0F04_00_S0215AMBIENTEVEFFDIMM0.xml ;
In these files there are visible address, length can be calculated by the length of data.

We don't have any database of available tweaks via eeprom function, so to use it you will need to google it.
Here is the good example how to activate function to fold mirrors from remote as you will see security access code can be different in this situation it is 04354: www.drive2.ru/l/512578852925473606/

OBDeleven | Professional diagnostic tool in your pocket

dv52 (Australia)
Moderator

Posts: 4,529

EEPROM facility Dec 8, 2019 23:43:31 GMT khmaaziz likes this

Post by dv52 (Australia) on Dec 8, 2019 23:43:31 GMT

^^^ Many thanks for the reply - I'll attempt to make EPROM changes to my test-bench (to trial the new facility). Much safer on a test-bench than on an actual car.

Don

PS: keep up the good work - looking forward to more from VOLTAS in future

dv52 (Australia)
Moderator

Posts: 4,529

EEPROM facility Dec 10, 2019 23:26:58 GMT Thirsty and maza like this

Post by dv52 (Australia) on Dec 10, 2019 23:26:58 GMT

^^^OBDeleven Developer: Hello again.

So I followed your instructions as follows:

I selected the hex09 module on my test-bench (no particular reason for choosing BCM)
Inputted the magic number (31347) as security code
Changed diagnostic session to Development mode
inputted a low value for the memory address (used hexB0 & hex00 - no particular reason for choosing these numbers, just wanted to make sure that the address was populated in module firmware)
Chose a reasonably small value for "number of cells" in Length (dec) field = 20
hit the R button

Results

Short press R button = screen says "incorrect diagnostic session" - even-though Development mode was selected -see pic below

Long press R button = screen says "value not changed" - even-though I was never able to access the "write" part of the screen

What am I doing wrong?

Don

Last Edit: Dec 10, 2019 23:31:48 GMT by dv52 (Australia)

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