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Old 03 February 2018, 06:35   #1
kipper2k
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new KB adapter

I just put in an order for a universal PS/2 adapter for the a500/a600 and a1200, Will get it next week, i did do some prelim tests and it "appears" to work on all 3 machines, time will tell, if it doesnt then this post shall wither and die

Here is a picture



So basically the main board will sit on the a500 8 pin header and will have a means of flip flopping between internal/external keybord. If you use it on the a600/a1200, just press on the plcc addon, connect the 5 pin header from it to the mainboard and the PS/2 header and you should be set
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Old 03 February 2018, 11:07   #2
Turran
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Great Kipper!

Last edited by Turran; 06 February 2018 at 09:43.
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Old 04 February 2018, 00:46   #3
AwoLStill
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Quote:
Originally Posted by kipper2k View Post
I just put in an order for a universal PS/2 adapter for the a500/a600 and a1200, Will get it next week, i did do some prelim tests and it "appears" to work on all 3 machines, time will tell, if it doesnt then this post shall wither and die

Here is a picture



So basically the main board will sit on the a500 8 pin header and will have a means of flip flopping between internal/external keybord. If you use it on the a600/a1200, just press on the plcc addon, connect the 5 pin header from it to the mainboard and the PS/2 header and you should be set
This looks promising, I can see many people wanting these!

(Myself included, at some point!)
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Old 04 February 2018, 01:58   #4
kipper2k
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Originally Posted by AwoLStill View Post
This looks promising, I can see many people wanting these!

(Myself included, at some point!)

I will sell the whole thing together so people can use it on whatever Amiga they choose, price will prob be about $19 USD depending on part sourcing.
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Old 04 February 2018, 02:05   #5
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When they are ready, 1x A1200 version for me please
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Old 10 February 2018, 17:21   #6
kipper2k
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Hi All,

So i got these boards and i tested on a500/a600 and a1200 and it works

here is a picture of it on the A1200, i mounted it and made a nice little hole for the keyboard connector to go through. So basically the adpter gets the signals from U7 (odd CIA) feeds it to the main little board and then sends it to the PC (PS/2) keyboard.



here is supersized

Last edited by kipper2k; 10 February 2018 at 17:46.
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Old 10 February 2018, 22:24   #7
Magic
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Brilliant! Great Work I wish I would have had one of these years ago.
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Old 11 February 2018, 18:50   #8
AwoLStill
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@Kipper2k this is cool, looks very good
- and now the PCB layout makes sense!
- but the supersize photo isn't opening for me at the moment, I will try later!

P.S. for those that prefer Wireless keyboard there is now this:
http://eab.abime.net/showthread.php?p=1218868

I prefer wired.

Last edited by AwoLStill; 11 February 2018 at 18:56.
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Old 19 February 2018, 15:48   #9
bugsymalone666
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So a quick question for Kipper2k, whats the chip your using?

Do you have the code available?

I'm in need of something a bit like your device, but want to integrate it into a custom board that will have PS2, USB and DB9 connections on mounted in the front of a tower case.

Having had a look online I havent found a specific code set for anything where you get all the amiga keys programmed into the windows keys etc.

I was going to add a USB socket too as apparently alot of the modern USB devices are PS2 compatible as part of the HID standard, meaning some USB keyboards would plug straight in
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Old 19 February 2018, 15:58   #10
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It's based on mmkeyboard you can use a 16f627 or 16f628

From experience doing the CD32 Riser boards you are best getting a Keyboard with an Actual PS/2 connector on them and then even some of the cheap China specials wont work too well or not at all.

If you do try a USB keyboard you will need one that came with the purple USB - PS/2 adapter.
Also if you want to see if a USB Keyboard works on a PS/2 port don't use a green adapter as they are wired differently.
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Old 19 February 2018, 17:28   #11
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yup, i am using same code as for the cd32 riser, here is a picture of the cable i done up for the a600. I tested the a500/a600 and a1200 fine.



i will post the gerbers once i tweaked design a bit

Last edited by kipper2k; 19 February 2018 at 17:38.
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Old 28 February 2018, 23:17   #12
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Just so everyone is aware, the keyboard adapter is working well on the a1200, although in my case caps lock key doesn't work, but Shift works fine for capitalisation.

Great product and easy to build. Just make sure you follow the instructions regarding the PLC properly, I soldered one on the wrong side of the board by following the mask and not kippers instructions haha ... woops PLC gone to heaven.

I use a g80-3000 cherry mx keyboard USB... (ps/2 protocol) with a purple USB TO PS/2 adapter.
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Old 01 March 2018, 10:48   #13
demolition
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Anyone aware of any wireless keyboards that is compatible with this?
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Old 01 March 2018, 23:55   #14
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Quote:
Originally Posted by demolition View Post
Anyone aware of any wireless keyboards that is compatible with this?
You probably want this thread:
http://eab.abime.net/showthread.php?t=90780
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Old 02 March 2018, 07:29   #15
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Quote:
Originally Posted by AwoLStill View Post
You probably want this thread:
http://eab.abime.net/showthread.php?t=90780
No, I was not looking to make a regular keyboard wireless, but wanted to know whether any wireless keyboards were PS/2 compatible and thus could be used with this adapter.

For example I have a Logitech K750 keyboard here which could be suitable if it supported the PS/2 protocol, however I am not sure if it is common to find that.
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Old 02 March 2018, 17:33   #16
solidcore
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if the usb wireless receiver has PS/2 protocol then it should work over a purple usb to PS/2
connector to the PS/2 to amiga 1200, in my case I use a usb wired PS/2 protocol with purple USB to PS/2 to the connector, the only difference is wired and wireless at this point in your question, so if the Logitech K750 keyboard is PS/2 compatible then it should work. The wireless keyboard must support ps/2.
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Old 04 March 2018, 17:10   #17
AwoLStill
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Ah, now I understand the question fully, good point there demolition - and solidcore good explanation of the caveats.
As it happens I need a new wireless keyboard and mouse so may as well try and find which - if any - currently for sale ones do support ps/2.

@Kipper2k I have a question, is there a limit to the number of simultaneous keypresses with this adapter?
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Old 04 March 2018, 18:36   #18
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Quote:
Originally Posted by AwoLStill View Post
is there a limit to the number of simultaneous keypresses with this adapter?
While I cannot answer of behalf of the adapter, most membrane-based keyboards do not have n-key rollover, so they have a limit as to how many keys they can handle simultaneously. Some keyboards even have problems with some 3-key combinations due to ghosting, and there is nothing any adapter can do about that.
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Old 08 March 2018, 11:05   #19
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Hey kipper2k, would it be possible to use this for my ATX4000 project? If so, do you have a picture of the schematic? I hope you don't feel offended because of this question or something like that

Thanks!
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Old 08 March 2018, 13:06   #20
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Quote:
Originally Posted by elenachen View Post
Hey kipper2k, would it be possible to use this for my ATX4000 project? If so, do you have a picture of the schematic? I hope you don't feel offended because of this question or something like that

Thanks!
This is the project Brian based his design around (and what my CD32 module also uses), schematics and hex file can be found in the zip.
http://eab.abime.net/showthread.php?t=75106
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