IBM PS/2 keyboard connected to a LP keyboard interface.

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By hamlet

Paladin (833)

hamlet's picture

16-07-2017, 19:46

I wanted to use my old IBM class-M keyboard with my padial LP keyboard interface.
A all other PS/2 keyboards seems to work perfectly with the interface the class-M won´t (but it proofs its function on a PC).
After start up it lights all three LEDs, like other keyboard, after that it didn´t react to my typing. No key responds.
Anyone confirm with the PS/2 standart and/or the interface?

And for all who are wondering: The IBM class-M is the masterpiece of a keyboard. My neighbors don´t think so, but its mechanical clicks sounds like music to me.

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By Meits

Scribe (4393)

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16-07-2017, 19:54

I know not all ps/2 keyboards work on this interface. Some work party. Some have the infamous "Nemesis bug" which prevents you to fly diagonally and shoot and some work flawless... It's quite an undertaking to find the right keyboard.

By Grauw

Enlighted (6034)

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16-07-2017, 19:57

@Meits Isn’t that a problem of the keyboard rather than the interface though? I expect they will have the same issue on a PC with an emulator.

And finding a (nice) PS/2 keyboard at all is also quite an undertaking nowadays. Big smile

By Meits

Scribe (4393)

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16-07-2017, 21:04

It's a keyboard specific issue indeed. Not much the interface can do about it.
Seeing PS/2 keyboards become more of a rarity, maybe it's best that MSX-land leaves PS/2 behind as well? USB is a different approach, but I've not seen reasons yet that it wouldn't work. PS/2 is quite a bit newer than the MSX way as well, and yet it works.

By Meits

Scribe (4393)

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16-07-2017, 21:05

hamlet: Quite a stack of RAM there to the right of your screen Big smile

By hamlet

Paladin (833)

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16-07-2017, 22:22

Damn, I hoped to use this kb on our GR8BIT, does anybody knows a similar one that works with the Padial interface and GR8BIT? My other kb doesn't have this solid feeling, even the IBM and SUN ones are lousy build. Or is there a way to connect a Philips or Sony kb via PS/2 or USB?
BTW, does I mention before, that like the HitBit 55P kb very much?
@Meits I changed the batteries of the DataCartridges in a row. I use them to save programs with our students. It' a simple, easy and cheap way to store data, if you don't want to connect a diskdrive or a MFR. They even work with the Yamahas. And 4kB are more than enough for our purposes.

By Grauw

Enlighted (6034)

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16-07-2017, 22:32

@hamlet That’s pretty cool Smile. You can just save them with the Basic SAVE command?

By Meits

Scribe (4393)

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16-07-2017, 23:06

Ah, to me it looked as if they were still sealed Wink

By Meits

Scribe (4393)

Meits's picture

16-07-2017, 23:11

As for the Philips/Sony keyboard connection to gr8bit. This might be your solution: turning it into a pc keyboard first.

By hamlet

Paladin (833)

hamlet's picture

17-07-2017, 00:51

@Grauw They work with some Sonys to save and load in a special BASIC mode. Using SAVE"CAT:
@Meits Yes, I cut only one side, so they remain in the plastic shrink.
Man, I totally forgot that keyboard-project. This is interesting.

By cklayman

Champion (267)

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19-07-2017, 13:34

IBM model M keyboards do not always work with PS/2-to-USB adapters either. Presumably because the keyboards draw too much current: http://www.lungstruck.com/compy/ibm-model-m-power/

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