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How to drive start1/start2 illuminated buttons?

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TheShanMan:


--- Quote from: leapinlew on June 01, 2008, 12:31:01 pm ---so, by default - if you were playing Centipede and you drop a credit in. Which LED flashes? I'm testing with Tempest and when I drop a credit in - I don't see the Caps, Num, or Scroll lock flashing on my keyboard.

Shouldn't it?

--- End quote ---

You either have to run ledutil.exe (comes with mame - used to be built into mame but now it's not) or another LED driving application.

Stub:

Save yourself a lot of trouble. Get GameEx http://www.gameex.net/ its LED-LCD plugin by Headkaze will do everything you ever wanted and then some.

ahofle:


--- Quote from: TheShanMan on June 01, 2008, 01:48:41 pm ---
--- Quote from: leapinlew on June 01, 2008, 12:31:01 pm ---so, by default - if you were playing Centipede and you drop a credit in. Which LED flashes? I'm testing with Tempest and when I drop a credit in - I don't see the Caps, Num, or Scroll lock flashing on my keyboard.

Shouldn't it?

--- End quote ---

You either have to run ledutil.exe (comes with mame - used to be built into mame but now it's not) or another LED driving application.

--- End quote ---

You also most likely need to specifiy the "/usb" parameter on ledutil.exe to get it to work.  The default setting is for PS2 keyboards and doesn't work under XP, whereas /usb works for everything.



ahofle:


--- Quote from: TheShanMan on June 01, 2008, 12:10:10 pm ---
--- Quote from: arzoo on June 01, 2008, 10:57:14 am ---You'll also need the hardware to drive the LEDs - I would guess the GGG LED-Wiz and Ultimarc PAC-Drive are the most popular. Some FE's also provide LED hardware options.

--- End quote ---

No, not if he just wants caps/num/scroll lock. The ipac will drive those.

--- End quote ---

It depends on the current draw of your LEDs.  The IPAC will only drive about 10mA @ 5V which is not enough for your average 5V superbright LED.  If your cones are less than that it should be fine though.  I ended up needing an "LED driver" board like this one to work with my player 1/2 LED lit buttons:
http://www.gamecab.com/products.asp?cat=26

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