Even though this project hasn't really started yet, I started to gather some CAN logs from my Volvo S60: https://github.com/damienmaguire/Volvo-V70-P2-CAN-Reverse-Engineering/tree/main/2002 Volvo S60 B5244S2 M56

Perhaps someone wants to play around with it as well?
As far as I know, these are the ...

Damien confirmed that Pin 16 (SENSE) and Pin 13 (GNDISO) of the High Side Drivers are connected on the original Tesla M3DU boards.
That would be supporting my hypothesis.

That wasn't my understanding. The way they seem to work is that the commands are processed by the first chip in the chain. If the command is valid (using the CRC I think) the first chip then passes through subsequent bits to the next chip in the chain. The process resets when the ~CS~ pin is ...

The documentation: https://kth.diva-portal.org/smash/get/diva2:1271414/FULLTEXT01.pdf page 50

CK and CS lines are still common for all node, but now, if the master
initiates a message transfer, its data will be shifted to the first device, data of the first to the second and
so on until the circle ...

Copy&Paste from Discord:

I think I might have an idea. So the DESAT circuit of the high side makes sense:
- GNDISO is at the source potential of the IGBTs through the 56R resistors,
- the drain of the IGBTs is connected to HV+,
- the DESAT circuit is now approximately as in the datasheet, with the ...

Also the configuration is read back correctly, I just went through the logs and checked.

Does that mean we get to see some motor spinach tomorrow?

From what I can gather the initialisation is completing successfully and is reading OK status values from each of the STATUS1,2 and 3 registers (it returns 0x000C in all cases). I'm surprised it is posting GATEDRIVEFAULT or GATEDRIVEINITFAIL errors.


No, it is returning 0x08 on STATUS1, 0x04 on ...

Clock looks sensible now. I'm still seeing odd values in the SPI decode. For example at 1s 854ms the driver is trying to send 0x9DD6 six times to write CFG2 register but this is decoding as 0x0DD6 and 0x1DD6 sometimes. From the behaviour this looks to be a capture artifact.


The analyzer ...

Also notable that reading out the registers after writing results in 0xAA for all of them. Perhaps it is indeed a timing thing.

Bild_2025-05-18_010910030.png

One other thing that Damien wants to look into tomorrow is that the "STATUS1" is set to "UVLOH = VH undervoltage flag. It is forced high ...

It is already shared: viewtopic.php?p=48154#p48154

Even though it is not self made, it is worth mentioning that you can buy brand new CCS connectors from TE at your local electronics distributor for (IMO) a resonable price (315€ incl. VAT): for example: https://www.mouser.de/ProductDetail/TE-Connectivity/2375502-2?qs=doiCPypUmgHstsjJsyVW8w%3D%3D ...

Very interested in your Pcb/Ecu solution. Working on a volvo s70 -97 in Sweden, want to turn off the ABS light so I get working abs, please tell me more about your solution or if there is something you can perhaps build two of so I can buy that solution from you? Nice work indeed!


I'm curious ...

The results look really nice and I don't want to be that guy, but be careful when zinc plating bolts (or parts in general). They can lose a lot of their original strength due to hydrogen embrittlement.

Damien said the brass bonnet opener is a pipe clamp

But there are some replacement parts on the way to Ireland

And there's a (beginning of a) Wiki article: https://openinverter.org/wiki/Volvo_Power_Steering_Pump
If you find some information to contribute, please add them to the wiki as well.

You can check out this build thread for some information about the Volvo P1 platform (C30, V50, ...): https://openinverter.org/forum/viewtopic.php?t=2498

However there is no integration into ZombieVerter as of now and nobody (publicly) knows how to deal with the Immobilizer. I was curious how the ...

Also, I suppose Damien's head just doesn't work that way, but, the lunch buffet of parameter nomenclature makes what little programming ability I have want to shrivel up and cry in a corner. I recall a time in the past that Johannes went through the VCU code with the scalpel to try to enforce one ...

That is nice but they were really stuck. I got them out before with no issues.


The CV axles are held in place with a little ring/clip (it seems to be missing in your pictures above, but you can see the grove in the shaft. BTW... did the clip come out or is it still inside the differential?).
If ...

To our current knowledge, they don't have to be from the same vehicle, no.

"AMD64" is the version for all x86_64 processors (including Intel), so the link to the Getting Started page is correct:
Bild_2024-11-07_150630768.png

I could add the instructions how to download the zip archive, however I did not anticipate that that would be an issue.
The README is already ...

Could ID 5EA require the magic byte cracker of @crasbe ?


That does not appear to be the case. 5EA is mostly static and does not have a counter, I would even say it does not have a CRC.

These are the individual messages from this log here: https://github.com/DomT177/GolfGTE/blob/main/220212_03 ...

Since I didn't really want to get into changing my Magic Byte Cracker script, I just wrote a small script to convert BLF files to the typical SavvyCAN format:

########################################################
# Convert the BLF File Format to SavvyCAN CSV format
#
# This script requires the ...

The link does not work for me. But you can put the .blf file into a .zip archive and upload it then.

LRBen wrote: ↑Mon Oct 28, 2024 9:51 pm Only thing left to crack is the CRC required. Some can logs are incoming so we should soon have everything we need to get these chargers operational.

Hit me up on Discord, when you got the logs. We can throw my CRC Cracker script at it.

Just kidding, I couldn't wait until next week myself :D

Fortunately my partner has access to a plasma table at work, so I only had to buy the material. In this case, it's 5mm S355 steel. Probably overkill, but the idea is that there will be absolutely no discussion about whether or not it's strong ...