Karter16's Silbergrau E46 M3 Journal

[heinzboehmer]

Ah that's annoying. Hopefully it doesn't take too long to resolve!

[karter16]

Ah that's annoying. Hopefully it doesn't take too long to resolve!

yeah - not an ideal situation to be dealing with but it is what it is. Will see how I get on when I hear back from Sorek (think he was on vacation until today). I appreciate it's a tough one with this sort of product. As far as he's concerned I equally could have done something wrong to fry the board so will see how it goes.

[heinzboehmer]

yeah - not an ideal situation to be dealing with but it is what it is. Will see how I get on when I hear back from Sorek (think he was on vacation until today). I appreciate it's a tough one with this sort of product. As far as he's concerned I equally could have done something wrong to fry the board so will see how it goes.

He's pretty cool about replacing HW. He sent me a couple boards when we were debugging the FW for the latest HW. They cost nothing to manufacture, so retaining the client is likely worth a lot more than one board.

Also, he's pretty active on the Gauge.S discord, in case you need to reach him quicker.

[karter16]

He's pretty cool about replacing HW. He sent me a couple boards when we were debugging the FW for the latest HW. They cost nothing to manufacture, so retaining the client is likely worth a lot more than one board.

Also, he's pretty active on the Gauge.S discord, in case you need to reach him quicker.

You were spot on with this advice. He did some quick troubleshooting with me over email to confirm the board is at fault and he's shipping me out a new unit this week :-)

[karter16]

So it was in fact the display that was at fault!



Stoked to have this sorted and have captured a test log.

The harness extension I'd made up worked perfectly. Simply intercepts at the steering angle sensor. I will be logging everything I need over CAN, so no need to do anything with the K-line. The 12V power to the steering angle sensor is from Terminal 15 so perfect for this use.

[karter16]

Now that I'm setup for CAN logging I finally got a chance to try out my custom program and tune ROMs that allow for configuration of the additional CAN messages (7D0 and 7D1) in the partial binary (see here for the background: https://nam3forum.com/forums/forum/s...454#post310454).

The good news is that it all worked first time! (to be fair I put a lot of effort into checking and rechecking the code to make sure it was right)

First up I flashed the custom program to the DME and ran it with the standard tune. I've designed this such that if someone uses the custom program with a tune file not designed for it the additional functionality is simply disabled. Likewise if someone uses the custom tune with the standard program it is also gracefully handled.

I then verified that DME functionality was as expected. E.g. normal function and no additional CAN message activity. All was well.

I then added the new parameters to my tune file:



and flashed the tune. Sure enough everything still worked, and the 7D0 CAN message was present on the CANbus.

Here are the values being logged.



I've got some more scenario testing to do. e.g. test the 7D1 message as well, intentionally put bad data into the config parameters and make sure it's handled gracefully etc. but super stoked all is working so far as this is the most complex change I've made to the program so far!

Onwards and upwards - this functionality will be very useful to me as I dive into more refinement of my tune now I have high-frequency CAN logging available!