Manu, do you remember me?
You were on vacation, we saw Moise once in Guadeloupe, we were 4 to discuss.
Otherwise, I have to work on a megasquirt based project with DSG gearbox.
I think it would take a "sniffer" of the CAN bus to know exchanges and addresses. We sell a lot of sniffer, or do it with "Arduino" or "Atmega" bases.
The idea would be to keep the mecatronic module, because you will never be able to do better than it and to be able to exchange the necessary information.
On MS3, with the programmable shiftlight module, one can even deduce the gear ratio engaged, on an Arduino forum, I found this information for a project DSG indicator
Found on one forum :
0x540 is the Can id for the transmission data.
Park is 540,0,0,FF,0,FF,0,0,26
Reverse is 540,0,0,FF,0,FF,0,0,36
Neutral is 540,0,0,FF,0,FF,0,0,46
Drive is 540,0,0,FF,0,FF,0,0,56
Sport is 540,0,0,FF,0,FF,0,0,66
1st is 540,0,0,FF,0,FF,0,0,2F
2nd is 540,0,0,FF,0,FF,0,0,3F
3rd is 540,0,0,FF,0,FF,0,0,4F
4th is 540,0,0,FF,0,FF,0,0,5F
5th is 540,0,0,FF,0,FF,0,0,6F
6th is 540,0,0,FF,0,FF,0,0,7F
Pour commencer :
http://www.volkspage.net/technik/ssp/ssp/SSP_308.pdf
http://www.volkspage.net/technik/ssp/ssp/SSP_238.pdf
http://www.volkspage.net/technik/ssp/ssp/SSP_269_d1.pdf