as time allows I will be reviewing... Thank you!

After reviewing the Stm32-vcu codebase, and the J1939 spec provided Thunderstruck... and a few back and forth emails with Thunderstruck support... I have concluded that the plan to have the Zombieverter query the Thunderstruck MCU via CAN/J1939 will not work because the only Value that the ...

tom91 wrote: ↑Wed Dec 03, 2025 8:37 amits a BMS.

yeah, that came to me early this morning. I will try again.

Do I understand correctly that the IVT Voltage reading is used to confirm that the pre-charge process was successful and the contactors can be safely closed?

tom91, would you be willing to review? --- am I even remotely headed in the right direction?

https://github.com/damienmaguire/Stm32- ... 2-vcu:TMCU

I spent some more time last night reading through the code. It is _more_ approachable than I expected...

At this time, I am planning to use the Thunderstruck MCU/BMS and I would very much like to run with a single IVT. (but worst case, I will just run two.....)

With time... I will clone the vcu ...

... so I heard back from support at Thunderstruck.... I am just going to (selectively) quote them here...


The ZEVCCS feature does use the Orion protocol to communicate between the MCU
and the Fellten CCS controller, so it does make the MCU transmit some info using the
Orion protocol. But it ...

brining a conversation I started in a discord thread/email into the public (where I really should have started it...)

I too am trying to get a Zombieverter to talk to a Thunderstruck MCU.

Two approaches have been floated.

1. Implement J1939-ish communication in the Zombieverter to allow it to ...

Prying up the black plastic/retainer on the top terminal does not release the terminal?

Do you have to remove all the small pins before you can remove the 4 larger pins?