[0dyl]

I was quite surprised, too. Maybe it was a little gift from Holden to the burnout bogans?

1. My apologies, I've confused you. CAN communications are purely internal for my system, it doesn't communicate via CAN to the car's computers.

The sensors and actuators give or accept voltage signals, and my controller inputs or outputs those accordingly. For example, the 4 speed has some pressure sensors to monitor the valve body behaviour, and I send some HI or LO voltage signals in emulation of it.

2. I do use FreeRTOS for the 407. I don't need to, since I use a super loop and all my memory is either static or allocated on the stack.

[pretty_dumm_guy]

Ah okay. This simplifies the setup a lot. I had done some testing and validation of ECUs 9 years ago. So my questions were based on the understanding I had developed back then. Thank you for clarifying it. Again, awesome work :)

[0dyl]

If my car relied heavily on CAN (like the next generation Commodore) I probably would have sold it.

I love CAN bus (for my own designs), but I don't see the effort of attempting to reverse engineer GM's format as worth it, especially since I had no prior experience with CAN.

Thank you :) I've got another D automotive project which I hope to write about soon.