Nismo280zEd Posted August 8, 2007 Share Posted August 8, 2007 http://www.megamanual.com/msexp/ What are your guys thoughts on this? -Ed Quote Link to comment Share on other sites More sharing options...
mobythevan Posted August 8, 2007 Share Posted August 8, 2007 I guess the use for this is mainly to have enough I/O to do COP and sequential injection. It would be fun to play with since you will be writing your own code to interface with the extra I/O. Me, I'm happy with wasted spark and batch fire. That leaves plenty of I/O on MS1 for me to do anything I can think of at the moment. This looks a little involved for most people (thats a challenge, any takers:mrgreen:) Quote Link to comment Share on other sites More sharing options...
Nismo280zEd Posted August 9, 2007 Author Share Posted August 9, 2007 The part that really caught my eye was that it could run MSII and MSnSE at the same time. So this got me to thinking..... you could run the MSnSE code, but use the ignition inputs through the faster processor so I could run an OEM porsche sensor instead of modifiying to run smaller numbers. but maybe i miss understood. Quote Link to comment Share on other sites More sharing options...
mobythevan Posted August 9, 2007 Share Posted August 9, 2007 What kind of signal does that sensor put out? Quote Link to comment Share on other sites More sharing options...
Nismo280zEd Posted August 10, 2007 Author Share Posted August 10, 2007 What kind of signal does that sensor put out? square wave i believe, they are magnetic pickups off the flywheel. Quote Link to comment Share on other sites More sharing options...
wheelman Posted August 10, 2007 Share Posted August 10, 2007 Looks like an interesting concept but I'd be concerned about vibration issues with a daughter card that large plugged into a 40 pin socket. The surface mount design will make for some difficult soldering unless you're experienced with small components. Personally I'd rather wait for the GPIO board that communicates with the MSII via CAN. Plenty of bandwidth for data transfer, lots of IO ports and fully configurable. Wheelman Quote Link to comment Share on other sites More sharing options...
z-ya Posted August 10, 2007 Share Posted August 10, 2007 You think debugging one MS is hard, try two processors running asynchronously. This board is really designed to add additional I/O because of the addition of CANBus used a bunch of I/O. CANBus is an automotive serial data bus that is used in most all European cars. If you want to add some of the Extra code capabilities to the MS-II, it would be easier to add them to the MS-II code (I think someone is alreadt developing this). Quote Link to comment Share on other sites More sharing options...
mobythevan Posted August 10, 2007 Share Posted August 10, 2007 square wave i believe, they are magnetic pickups off the flywheel. I was curious how many teeth or what configuration doesn't work with the current megasquirt systems. Quote Link to comment Share on other sites More sharing options...
Nismo280zEd Posted August 10, 2007 Author Share Posted August 10, 2007 I'll have to look up the tooth number again but it's over 100 like 132 i think. We are trying to run coil on plug on it also... I'll have to see if that's going to work out or not. I was trying to run MSnSE code on it, but I'll have to do some more research now. Yeah, debugging one is bad enough, especially when it used to run and now it doesn't... GRR. at anyrate... This will be a project in the very near future... 89 911 with MS Quote Link to comment Share on other sites More sharing options...
Matt Cramer Posted August 13, 2007 Share Posted August 13, 2007 I was curious how many teeth or what configuration doesn't work with the current megasquirt systems. Some of those Porsches have a ludicrously high number of teeth on the crank trigger, 135 teeth IIRC. It overloads MS-I. MS-II I'm not so sure about. Bosch decided to count the number of teeth on the flywheel to get as much resolution as possible. They later dropped this in favor of a 60-2 wheel. Quote Link to comment Share on other sites More sharing options...
Nismo280zEd Posted August 16, 2007 Author Share Posted August 16, 2007 I believe we are just going to mod the Dist to use a hall sensor from a maxima dist and trigger with that. then run wasted spark and coil packs. Quote Link to comment Share on other sites More sharing options...
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