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ps2 to usb - anyone try this? - pic attached

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KenToad:

--- Quote from: Tiger-Heli on April 26, 2005, 07:09:17 am ---
big hulking CP

--- End quote ---

Thanks :)

--- Quote from: Tiger-Heli on April 26, 2005, 07:09:17 am ---
 It will work better than trying to mash the little keyboard keys.


--- End quote ---

Let's hope so.  I'll let you know when I get the product.


--- Quote from: Tiger-Heli on April 26, 2005, 07:09:17 am ---
The other question is cost - If it's $8-10 for the adapter for occasional use, it's not a big deal, if it's more expensive, you might look at a GP-Wiz Eco replacement for the KeyWiz and then you wouldn't need to be concerned about the performance issues.

--- End quote ---

Well, as has been stated before, cost is relative.  If you add the cost of shipping and the headache of reconfiguring an already configured system.  I would have to switch over all my emulators to joystick inputs for the second player, not to mention having to use RBJoy for VPinmame at the very least, although I think I would probably have to set it up for Atomic Bomberman as well, just to get in and out of the game without touching the mouse (so that I can imagine that my CP has cabinet functionality  ;))

One question for RandyT, if he's still checking this thread, or for anyone that might have both the GPWiz Eco no-solder and the Keywiz Eco no-solder to tell me whether or not they have the same pin configuration, i.e. whether I can just lift my IDE connector from the one encoder and squeeze it onto the new one?  Of course I mean relatively, since one is for the keyboard and the other is for joystick.  Maybe this question is not really relevant given those differences.  Disregard it if you see irrelevancy.  Thanks a lot. 

BTW, Cholin, if you figure out that I-Pac/Minipac issue, post it here because I'm curious also, although I'll probably stick with my (or maybe Oscar's) mouse hacks.  Trackballs still seem too pricey for my budget, although I'd love to have two for authentic Cabal gameplay ... frantic diving rolling and shooting, gotta love it.

KenToad

AndyWarne:
In general on any motherboard manufactured in the last year or so you can't hot-swap PS/2. It might work some of the time but most times it will cause the mouse to lock up. Of course if you are not using the mouse this will not be a problem. the reason for this is that recent motherboards have keyboard/mouse controllers (actually part of the motherboard chipset) which share I/O lines. The original concept of separate keyboard and mouse each with their own hardare interface has long gone. No damage will occur though so by all means try it on your PC and see if the mouse freezes or not.

USB converters used with a PS/2 device will not work. Because the USB and PS/2 specs differ so much (ie USB sends a list of pressed keys and PS/2 sends key down/up codes) the USB converters are programmed to cancel all pressed keys every couple of seconds to avoid any stuck keys. So you will find that when moving in any direction by holding down a key, you will stop moving after a couple of seconds.
Andy

RandyT:

--- Quote from: AndyWarne on April 27, 2005, 10:32:31 am ---In general on any motherboard manufactured in the last year or so you can't hot-swap PS/2. It might work some of the time but most times it will cause the mouse to lock up.

--- End quote ---

I have heard of this happening, but I'm not sure how common it is.  You might want to clarify that you are talking about the PS/2 mouse possibly having this issue and not just any mouse connected to the system. I.e. USB.


--- Quote ---...USB converters are programmed to cancel all pressed keys every couple of seconds to avoid any stuck keys. So you will find that when moving in any direction by holding down a key, you will stop moving after a couple of seconds.

--- End quote ---

This is an overgeneralization.  How the converter handles the translation of the PS/2 protocol is entirely based on implementation.  The PS/2 to USB adapter I have in front of me does not exhibit this behaviour and will happily show a pressed key for as long as one holds it down.  It just won't take more than 6 non-modifiers at a time and induces a small amount of latency.

RandyT

Tiger-Heli:

--- Quote from: RandyT on April 27, 2005, 11:03:15 am ---
--- Quote from: AndyWarne on April 27, 2005, 10:32:31 am ---In general on any motherboard manufactured in the last year or so you can't hot-swap PS/2. It might work some of the time but most times it will cause the mouse to lock up.

--- End quote ---
I have heard of this happening, but I'm not sure how common it is.  You might want to clarify that you are talking about the PS/2 mouse possibly having this issue and not just any mouse connected to the system. I.e. USB.

--- End quote ---
Agreed!  Just to clarify (again).  I have a motherboard more than a year old, a PS/2 Keywiz that I routinely hot-swap, a PS/2 keyboard running through a USB adapter, and a dedicated USB mouse.  Never had the mouse lock up, but the system is probably old enough that the comment doesn't apply to me.

However, the PS/2 mouse (with scroll wheel) used to lock up on me, with various motherboards, before I had the KeyWiz which is why I went with a USB one.

--- Quote ---...USB converters are programmed to cancel all pressed keys every couple of seconds to avoid any stuck keys. So you will find that when moving in any direction by holding down a key, you will stop moving after a couple of seconds.

--- End quote ---

--- Quote ---This is an overgeneralization.  How the converter handles the translation of the PS/2 protocol is entirely based on implementation.  The PS/2 to USB adapter I have in front of me does not exhibit this behaviour and will happily show a pressed key for as long as one holds it down.  It just won't take more than 6 non-modifiers at a time and induces a small amount of latency.

RandyT

--- End quote ---
Agreed.  With my converter, I can hold down any one key indefinitely, but if I hold down two keys and then release one, both are cancelled.  Perhaps this is what you meant, or perhaps it varies from converter to converter.

RandyT:

--- Quote from: Tiger-Heli on April 28, 2005, 10:08:52 am ---Agreed.  With my converter, I can hold down any one key indefinitely, but if I hold down two keys and then release one, both are cancelled.  Perhaps this is what you meant, or perhaps it varies from converter to converter.

--- End quote ---

And that really proves the point I was making, as this is a third variation.  You can't really make a blanket statement about the converters as they only have one common goal, and that is to allowa PS/2 keyboard to function via the USB port.  The goals of a keyboard encoder used for gaming are quite a bit loftier, and no matter what the implementation method used in the conversion process, this wasn't even close to being important to the designer when he was working on the project. 

Luck would definitely be on your side if you managed to find one that works well for gaming (and if you do, spread the word ;) ), and the reasons are many and varied.  That is mostly where I was going with all of this.

RandyT

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