MDCT bin, M3 GWS, Kombi that's shows it, maybe IKM0S, CAN shield. Probably M3 DSC if you want DSC control in there, but there is no DSC off in the options, so CAN fake button or physical button.Just found the time to look at this properly
So what’s required for this?
Hardware and Software wise ?
Basically just no sport button, disabled wheel button and relying on sketch to trigger and send settings.
That's what I figured. I'd prefer not using CAN too. It's good for testing and playing, but mine isn't installed in any permanent fashion. I'd have no problem flashing the hack IKM0S to test if/when there's some agreement on its correctness.Nice work!
I don't think exchanging values will happen with the CIC, I can't see any reference of the CONFIG_MDRV in the DME. I'm sure it could be added but the work and testing involved would outweigh the benefit.
What coding is needed to get the MDrive steering wheel button talking to the DME like that? I originally thought I would just change the logic in the DME to use the sport switch instead of the MDrive button but they are about £40 on ebay so easier to add the button.
1M DSC or M3 DSC + M drive SZL is probably all you need. Maybe other DSCs can be hacked to add, but by all accounts, the button should work on any rom if the signal is present to DME. It might be different on Z4, but removing the sport button is taking away the one thing we know sets the sport mode in trans.
I haven't confirmed if it sets anything in trans for sport/sport+ yet, but if so, I think the 2 things that would need to be added to the DME message are the low bits and the trans status.
Anyone have a layout of 0x1A2? I think that might be the definitive message to verify trans mode.