deskthority

Probably SW1? Share your result. https://deskthority.net/wiki/File:ARC_KB-5181_--_assorted_2.jpg https://deskthority.net/wiki/Chicony_KB-5181#Cherry_MX_blue_switches As you already found AT2XT converter is another option. http://www.vcfed.org/forum/showthread.php?15907-AT-to-XT-Keyboard-Converter&p=...

Sonic08,
What's model number of your "Model F XT"?
Its waveforms seems to be different from other IBM XT keyboards. The data line is pulled down to low when idle on IBM XT keyboards. Just curious.

You can use your "IBM Model M 1390120" your profile are refering to test the converter hardware and its cable connection at least?

AT waveform itself looks ok now. But the AT signal for 'K' is actually '6B'(Keypad 4), I think you got '4' or Left(depending on NumLock state) on computer press 'K' on the XT keyboard. This indicates the converter misread XT signal for 'K', to be exact, it fails to read data on the first clock falli...

Can you share model number of your "old XT mechanical keyboard"? That XT waveforms seem to be ok and clock is a bit faster than genuine IBM XT keyboard, but it won't be problem. I think the waveform of "At the output of the Converter" shows 'AA' from converter(emulating AT keyobard), 'ED' command fr...

frogmaster,
Thanks for your feedback!
It looks ok, the keyboard is recognized as expected.(AT protocol with Scan Code Set 2)

frogmaster, Interesting. I understand how the numpad part is configured now. Added the keys to keymap editor. It should make easier to remap hidden keys of IBM AT keyboard. Can you try this? You can load your existent firmware file at "Base Firmware File:" section and the editor should display your ...

Hey there, I just built a TMK ps2_usb converter out of this Pro Micro clone from ebay: Try new IBM PC Keyboard Converter(ibmpc_usb) ! This thread is for it :D Desoldered MIC5219 voltage regulator (the 5-legged IC), 2x 10uF (orange pieces), diode D2 (middle and right next to USB socket SMD pins). Br...

frogmaster, Oh, AT keyboard. I assumed your keyboard is XT becasue you refered process_cs1. I didn't realize missing keys on AT editor but I'll add them. The misssing keys are 39 and 68 in scan code? Is there any other? https://www.seasip.info/VintagePC/ibm_6450225.html And can you post pic of your ...

What is your keyboard model? You refered only 'model f'.

Which key are you refering? Posting pic is helpful.
"EXTRA_INSERT (0xb6) is missing from numpad (should be left of NUMPAD 0)."

Well for start, EXTRA_INSERT (0xb6) is missing from numpad (should be left of NUMPAD 0). What is the button i should select on the editor? First, flash firmware downloaded from Keymap Editor(without edit mapping). Then press the key on your keyboard to know what it registers on computer, you will n...

I think if you do some trial and error on Keymap Editor you will know how to use it somehow.
What's your problem actually?

That remap looks to me really straight, though, I don't know much about how Soarer's remap setting works. You may need to explain me what you want.

I also tried the dial on my 98203C with wiring cheap usual mechanical encoder tentatively (it failed to read optical encoder I got for the keyboard, for some reason), and found that it sends Y-axis data when rotate the dial with pressing Shift key. I can move mouse cursor with the dial now. I ported...

Great work! It works perfectly with my HP 98203C keyboard, it seems to use its device specific 'Keycode Set 2' like below. Interestingly, the keyboard has no ghost-blocking and phantom key can appear with specific three keys. I had broken its rotary encoder a few years ago and can't test the dial un...

Updated first post.

Keymap Editor is avaialable here now.
http://www.tmk-kbd.com/tmk_keyboard/editor/#ibmpc_usb

You can use the decorders of course, it would be easy to write code to use them if you can track traces of the pcb and find datasheet of the decorders. But I can't say about how to implement universal feature supports various decorders used on every keyobard but it would be certainly helpful to othe...

Redmaus, Thanks for the test! and good to know it works with the keyobard. As for Wyse, this doesn't support Wyse proprietary protocol. If the board speaks in AT, XT or Terminal protocol the converter should works. At this time I'm interested in test results with keyboards below particularly. It wou...

anyone?

Yes, one for Caps and other for Bluetooh status for Hybrid. I believe that top half assembly is common for both Classic and Hybrid model, though I don't look into Hybrid yet. You are refering this? It is reed switch soldered by me to get access to bootloader, not their job of course. :D https://i.im...

I got this board from Yahoo! auction Japan. The board has so many keys that spit out unsual scan code, to use all of the keys you will have to program them with Tipro software or need PS/2 converter with custom firmware. Its switches are plate-mounted Cherry Blacks, the board is good source of chery...

I got one the other day and took some photos including its internals.





You can locate other pics in this album.
https://imgur.com/a/RZXV8rH

anyone can help?

REQUEST FOR HELP: Try and report your result.
Post your keyboard model number here, also debug outputs on hid_listen would be helpful.

ZedTheMan , Yes, reset button would be a must-have when in trouble. I don't recommend to use converter without reset button like orihalcon's for now at least. To use Teensy or Pro Micro is fine and safe. If the firmware recognize your keyboard correctly you can put it into bootloader mode by holding...

IBM PC Keyboard Converter The converter translates IBM PC keyboard protocols to plug classic keyboards into modern computer with USB ports. It supports both IBM XT and AT protocols, and all of scan code set 1, 2 and 3 with one firmware. Also check this corresponding thread at geekhack.org. https://...

Ah, then post schematic of your pcb so that we can check your matrix scan code.

And, what is your exact MCU part number or source?
Did you fiddle with MCU fuse setting with ISP programmer, perhaps?

what's your pcb exactly? And is it really compatible to GH60? GH60 is used just for promotional word by some vendors these days and some of them don't seem to retain its spirit of openess at all. There seems to be some variants different from original GH60 in the market. And, try disabling BOOTMAGIC...

This is really great work! Thanks a lot, lsoelxi and snuci.

@Hypersphere, thanks for the report.
You don't need post both forum. Use thread on Geekhack for USB-USB converter related topic.

@hasu: I've been using your splendid USB-USB converter with my new RF R2 TKL PFE Edition keyboard. It works fine, but when I reboot my Win 10 computer, I then have to unplug the converter from the computer and replug it in order for the keyboard to function. Is this normal for the USB-USB converter...

@hasu: I've been using your splendid USB-USB converter with my new RF R2 TKL PFE Edition keyboard. It works fine, but when I reboot my Win 10 computer, I then have to unplug the converter from the computer and replug it in order for the keyboard to function. Is this normal for the USB-USB converter...