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Intermittent Missed Keys with iPac **Resolved**

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DigDreams:

I recently completed my first cab, and I am using an IPac-2.  I have a small problem, mostly in pinball...  Every once in a while it just "misses" a key press.  I'm not sure if it is happening on other keys, but I notice it on my flipper buttons.

I have tried running separate grounds directly to them, unplugging the pass-thru keyboard, and just about everything else I can think of.  It only happens maybe once every 40 key presses, but it's enough to ruin your pinball game.

If you want to see the wiring, my project thread is:

http://forum.arcadecontrols.com/index.php?topic=54734.0;all

Any ideas on how to correct this?  It's a real pain in the you know what and I am running out of ideas.

- DigDreams

hypernova:

I had the same problems for awhile.  I ended up changing the programming of the Ipac.  I think somehow either the CTRL or ALT or SHIFT keys somehow interfere with mame (or in your case, pinball) at times.  Mine happened alot more often though...once every 5-10 presses.  When I removed the default programming and changed those keys to "normal" keys (letters/symbols/numbers/etc) everything seemed to work correctly.  Worth a shot. 
This, of course, assumes that the pinball you use utilizes those buttons. 

hanelyp:

If the game in question responds to ASCII codes from key presses, shift, control, and alt will definately mess things up.  A program using raw keycodes, as recomended for video games, should work fine.


DigDreams:

Thanks guys.  You are correct, I am using left and right shift for the flippers (defaults).  Which are also dual-mapped.  I will change them to keys and change it in VPinMame and Pro Pinball.

I'll let you know if it works.

Thanks again,

- DigDreams

DigDreams:

No luck...  I did more testing using notepad.  USB and PS2 yield the same results. 

If I hit keys connected to the ipac 10 times I get either 10, 9 or even 8 key presses some times.  If I hit keys on the keyboard connected to the IPac's pass-thru, I hit 10 keys - I get 10 key presses.

It's not noticable in most of the games I play, but it really kills pinball.

ARGH!

Any more ideas???

- DigDreams

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