Interface Supermodel with original SEGA hardware

Technical discussion for those interested in Supermodel development and Model 3 reverse engineering. Prospective contributors welcome.
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Re: Interface Supermodel with original SEGA hardware

Postby bigpanik » Mon Jan 27, 2014 3:46 pm

For M2Emu, I have written a little program able to pick up into the M2emu memory the FFB command byte. This byte is then send to an arduino connected to the SEGA drive board.

I had already read this Andy's story of drive boards swapping. Super GT/Daytona USA 2 drive board commands aren't compatible with Daytona/SEGA Rally ones. This can not worked. Perhaps he tried with SR2 Roms or Indy 500 hardware?
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Re: Interface Supermodel with original SEGA hardware

Postby RetroRepair » Thu Feb 13, 2014 4:47 pm

I saw the video, that's some great progress :)

I'd love to try it out, are you going to make it available?

Yeah I tried with all sorts of roms and it didn't work. Think he must have remembered wrong.
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Re: Interface Supermodel with original SEGA hardware

Postby ReneRens » Tue Mar 31, 2015 1:49 am

I have been working on interfacing my Daytona 2 Deluxe to the model3 emulator.

So I have an arduino mega that should interface with the Daytona 2 driveboard but I am having some problems, I send the bigpaniks init sequence and I always get Er 22 on my driveboard.
I attached 3x 5k pots connected to the arduino and I can steer, accelerate and brake with these on the emulator (I adjusted the (Model3.cpp) source to receive that data from the arduino).

Also I adjusted the source (Model3.cpp) to send the view lights and leader light data to the arduino and the leds light up accordingly.

I adjusted the force feedback code (DriveBoard.cpp) on the emulator to send the correct left and right force and vibration codes to the driveboard and when i look at the leds the data is correct.

I think when I can successfully send data to the driveboard I can play it without the Daytona 2 PCBs and use the original hardware with working lights and force feedback just with this one arduino mega 2560 board :)

Image
Image
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Re: Interface Supermodel with original SEGA hardware

Postby Bart » Tue Mar 31, 2015 3:38 pm

Wow! That is seriously cool stuff! I wish I could help but Nik was the one who wrote the driveboard emulation. I've never actually looked at it much. If you figure out your remaining problems and would be willing to write up a document and some schematics (plus the Arduino source code), I would be happy to host it on the Supermodel page and also incorporate your changes into the Supermodel source code.
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Re: Interface Supermodel with original SEGA hardware

Postby bigpanik » Fri Sep 04, 2015 2:30 pm

Hello,

Here a scheme of a stand alone circuit used by example to auto center model 3 wheel.

Image

Don't forget to connected +5V CN1 pin and GND CN2 pin (common with the arduino).

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