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GunCon2 on PC-monitor

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rbarr110:

OK - I am going to make the circuit and try it out, however, I have a question regarding the VGA connection (I figured I would ask here first).

Does the circuit have to be in-line:


Cananas:

I think is not necessary to be in-line. It can be parallel.

tivogre:


--- Quote from: tivogre on October 18, 2005, 01:19:45 am ---I got my 3 JPAC small chips today.

Now I just have to track down the 680 Ohm resistor and .1 uF capacitor.

I ultimately intend to build this circuit and my 9v / 5v output circuit on one board.

I'll let you guys know when I'm done, and how it works out!

--- End quote ---

OK.... I finally got all of the parts and built the circuit with the JPAC small chip.

I am using the following hardware:

     Monitor - Wells Gardner D9200
     Video Card - Nvidia FX5500
     Guns - 2x Scorpion 3 (GunCon2 Mode)
     Driver - Acorn's WinGun v.82B

I haven't experimented with it much yet, but here's the current status:

800x600 mode @ 60Hz

Guns are recognized by the driver.  "A", "B", "C", "START" and D-Pad work correctly.  "Select" and "D" buttons do not register in the driver.

Can't calibrate either gun.

Nearly the EXACT same behavior I got when I built the (incorrect) 15kHz circuit.

The cursor moves as the gun moves, in the same direction, but not at the same speed.  Left and bottom edge boundaries "wrap around" so that one pass top to bottom or right to left moves the cursor about 1 3/4 screens.

I would classify the 800x600 as "unusable" at this time.



640x480 mode @ 70 Hz

Guns are recognized by the driver.  "A", "B", "C", "START" and D-Pad work correctly.  "Select" and "D" buttons do not register in the driver.

I can successfully calibrate both guns.

Tracking is good on the calibration screen, and on the windows desktop with a white background.

MAME lightgun games do not work correctly.  Almost all shots register as off-screen.  Shots near the center of the screen SOMETIMES work.  (This MAY be a MAME set-up issue... not sure yet).

***EDIT***

I have now gotten EggVenture to work correctly with dual light guns, but ONLY from the command line.  Not working yet in MAMEWAH.

I have gotten Area 51 to work SOMEWHAT, but ONLY from the command line.  Not working yet in MAMEWAH.  However, even from the command line, one out of every 2-3 shots registers as a reload vs. a shot.

***END EDIT***

I would classify 640x480 as "promising" at this time.



I'm going to pass this status on to Andy.  I'm also going to discuss with him ordering some of his new chips to see if my 800x600 issues may be solved with the new chip.

I'm open to any / all troubleshooting recommendations.


SirPoonga:

does the refresh rate make a difference?

tivogre:


--- Quote from: SirPoonga on October 22, 2005, 01:43:53 pm ---does the refresh rate make a difference?

--- End quote ---

It might.  However, with the Wells Gardner D9200 monitor, 800x600 is a working, but not a "supported" resolution;  it will only work @ 60Hz as far as I can tell.

I edited my post above to say that I've now had partial success from the command line with EggVenture and to a lesser degree with Area 51.

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