MSS5x Motor Type Parameter

[Martyn]

Does anyone who has disassembled the MSS5x code actually know what the cfg.motortyp actually does?

In the MSS52 its set as 0x30 for the S62B50, and in the MSS54/HP it's set at 0C for the S54B32.

Could an MSS52 run an S54 without flashing MSS54 code on it? Or even could an MSS54 with 2 additional coil drivers actually run an S62? I guess there must be something that also defines the firing order too.

[terra]

Does anyone who has disassembled the MSS5x code actually know what the cfg.motortyp actually does?

In the MSS52 its set as 0x30 for the S62B50, and in the MSS54/HP it's set at 0C for the S54B32.

Could an MSS52 run an S54 without flashing MSS54 code on it? Or even could an MSS54 with 2 additional coil drivers actually run an S62? I guess there must be something that also defines the firing order too.

Yes and yes with some caveats. In the MDS52 folder, there actually is a development S54 tune that runs on the MSS52.

That parameter does impact firing order etc. And it's also used to set some of the other differences between the engines (e.g 2 MAFs vs 1). As the software diverged, I think some of the checks were broken (CSL for example can't really support 2 MAFs as it stands).

[Martyn]

Thanks Mirza!