geekhack
geekhack Projects => Making Stuff Together! => Topic started by: OfTheWild on Fri, 01 July 2016, 16:18:37
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Looking for someone to point me in the right direction here. I'm in the middle of cleaning/restoring, and adding a Teensy 2.0 to an IBM Type-F that has the AT plug into a connector like this: (courtesy of "Chloe" from this thread (https://geekhack.org/index.php?topic=5492.0))
(http://i727.photobucket.com/albums/ww280/switch-kitten/ibm%20pc%20xt/DSCN6084.jpg)
So i took out the ohm meter and found the corresponding locations on the plug itself based on this diagram...
The plug wires are:
Brown = #4 GND
Red = #5 VCC (+5v)
White = #2 Data
Black = #3 ????
theres also a separate earth wire thats screwed to the plate that goes to the outside of the plug "PE"
(http://www.kbdbabel.org/conn/kbd_connector_ps2.png)
I was all gung-ho till i hit that #3 pin out and now i'm not sure its even correct.
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I don't know, but never trust color.
I have never direct wired an XT, but for the 122 it is:
Black = +5V
White = Ground
Red = Date
Yellow = Clock
The positions on the socket that you show should be the same, because you can plug the XT into the same socket as a standard DIN on the Soarer's/Teensy and it works fine.
You did notice that that diagram is for the socket and not the plug, right?
PS - ignore #3 except for the rare keyboard that needs the "reset" or whatever it is
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You did notice that that diagram is for the socket and not the plug, right?
:-[ :))
ok then mirrored... my connectivity testing resulted in:
Brown = VCC 5v
Red = GND
White = Data
Black = Clock
:thumb:
Do i need to connect the "PE" wire to something on the teensy or is it not required anymore?
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Do i need to connect the "PE" wire to something on the teensy or is it not required anymore?
I don't think it is needed. I have never connected one, but if there is a ground connection in a cable I usually try to hook it back up to where it went before.
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I would like to concur with the never trust colors. Especially with IBM. I have heard of someone pulling apart two XTs, at the same time and both boards had different colors patterns.
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Yes, agreed, that is why i used a multimeter and verified them.
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And here we are, typing this post with my "new" Type-F with a Teensy 2.0!
Process:
1. Take it apart and clean it. Chloe's thread (https://geekhack.org/index.php?topic=5492.0)
2. Sand plate, prime and paint to my liking.
3. Using the ohm meter on my multimeter, i identified which wires went to the pins on the AT connector as per log above
4. Soldered the wires to the correct ports on the Teensy per Soarer's thread (https://geekhack.org/index.php?topic=17458.0)
5. Loaded the hex file from soarers zip that matched the teensy board which in my case said ATMEGA32U4 CHIP on the packaging
6. Plugged it in and it works.
Now i just need to figure out how to change some key mapping and build some function layer stuff so its actually usable lol
(http://imgur.com/4EeYkdS.jpg)
flash=on so you can see the funky teal color. I will make a custom cable to match.
(http://imgur.com/TSUK4Iv.jpg)
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Now i just need to figure out how to change some key mapping
Wcass describes an easy clean method in post #560 of Soarer's thread.
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Now i just need to figure out how to change some key mapping
Wcass describes an easy clean method in post #560 of Soarer's thread. (https://geekhack.org/index.php?topic=17458.msg708153#msg708153)
Ok cool, thanks. I will play with it some more later!