Vida CEM swapping

Yariy · Post by **Yariy** » 21 Apr 2025, 03:17

bobbik wrote: 20 Apr 2025, 08:40 I'll rewrite the script to find config block automatically, no matter of dump size and organization. Just give me some time , as spring has come and I do not spend much time on the computer

I like your project. I also thought about using the configuration area search function in my project, regardless of the size of the flash and location. If you have already figured out what file search logic you will use to find the configuration area, can you share?

yamaha1024 · Post by **yamaha1024** » 21 Apr 2025, 10:21

I encountered an issue with downloading VIDA software, can anyone help me? I can pay the fee

Treur · Post by **Treur** » 22 Apr 2025, 10:32

Maybe someone have information about ID LS-CAN 0x012173BE? I am very interested in the 4th byte

Treur · Post by **Treur** » 22 Apr 2025, 12:06

CEM free BDM programmer - https://volvo-tech.com/en/793-2/

Post by **vtl** » 22 Apr 2025, 14:06

Treur wrote: 22 Apr 2025, 10:32 Maybe someone have information about ID LS-CAN 0x012173BE? I am very interested in the 4th byte

Look it up in VIDA SQL DB.

dwappertam · Post by **dwappertam** » 22 Apr 2025, 19:21

HI everyone,

I Have a little question about ArduBDM can i use the Program that T5Luke Wrote to read out the CCM flash that uses the same 68376 MCU and a 28f200? The pinout for the ccm allows BDM . i am only want to make a copy of the device...

Thanks in Advance,

I resently tried to use the ArduBDM way from T5Luke for the CEM , finaly got it to read the CEM and retrieved a usefull bin.
Thanks again, this is a life saver ,

With regards
Mike

Post by **RickHaleParker** » 22 Apr 2025, 20:45

Treur wrote: 17 Feb 2025, 14:08 I would like to make j2534 out of it. It is already starting to process USB commands, but I need to figure out how to write an API.

SAE J2534 and ISO 15765 are the same standards.

ISO 15765-2: Defines the transport and network layer protocols for CAN-based communication, including services like DoCAN (Diagnostic Communication over CAN) and UDS (Unified Diagnostic Services).

ISO 15765-4: Specifies the requirements for diagnostic communication between vehicles and external test equipment, focusing on emissions-related systems and OBD/WWH-OBD (World-Wide Harmonized On-Board Diagnostics) regulations.

You might look through the code for Volvo Tools for clues and examples.

Open J2434 resources.

Treur · Post by **Treur** » 23 Apr 2025, 10:46

RickHaleParker wrote: 22 Apr 2025, 20:45
Treur wrote: 17 Feb 2025, 14:08 I would like to make j2534 out of it. It is already starting to process USB commands, but I need to figure out how to write an API.
SAE J2534 and ISO 15765 are the same standards.

ISO 15765-2: Defines the transport and network layer protocols for CAN-based communication, including services like DoCAN (Diagnostic Communication over CAN) and UDS (Unified Diagnostic Services).

ISO 15765-4: Specifies the requirements for diagnostic communication between vehicles and external test equipment, focusing on emissions-related systems and OBD/WWH-OBD (World-Wide Harmonized On-Board Diagnostics) regulations.

You might look through the code for Volvo Tools for clues and examples.

Open J2434 resources.

As it turned out, writing an API is much easier than writing the firmware of the device itself. I wrote the code, but it sometimes works, sometimes it doesn't. Periodically, the controller starts to loop when sending messages. It's hard for me to write in C.

V70user · Post by **V70user** » 27 Apr 2025, 10:43

Treur wrote: 22 Apr 2025, 12:06 CEM free BDM programmer - https://volvo-tech.com/en/793-2/

I tried this project. It didn't work with CEM-B 8688434 . Still the same response : it can't permanently open com port.
If I missing something, I didn't figure out what is it.. till now
It would be the simplest CEM programmer, ever seen
.

: [email protected] (32.22 KiB) Viewed 1525 times

Treur · Post by **Treur** » 28 Apr 2025, 03:47

Check connection, it's working