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geekhack Projects => Making Stuff Together! => Topic started by: mil on Sat, 13 June 2015, 15:07:27

Title: TMK/Teensy Firmware with USB->PS2 Compatibility Mode?
Post by: mil on Sat, 13 June 2015, 15:07:27

Hi all,

I just built myself a Planck (which has firmware based on TMK) and now I'm just realizing that the TMK firmware does not come by default with some sort of PS2 compatibility.

E.g., if I plug the Plank's USB into one of these USB->PS2 converters, I'm out of luck..
(http://img.tomshardware.com/us/2005/11/23/pc_interfaces_101/ps2_usb.jpg)
As it turns out these adapters are passive and require the firmware of the keyboard/mouse to know to send PS2 commands when not registered with USB protocols. There are of-course active USB->PS2 adapters that implement this translation -- but I'd rather do this with my existing firmware onboard (the Planck Teensy) and one of the passive adapters I already own if possible.

Does anyone know of TMK or another Teensy Firmware that support a PS2 Compatibility mode?

Title: Re: TMK/Teensy Firmware with USB->PS2 Compatibility Mode?
Post by: mil on Sat, 13 June 2015, 20:49:37

Well after some research I've found:
http://blog.winkeyless.kr/185

Which appears to be an answer for PS2 firmware, however I am far from the know how to figure out how to translate that firmware to work with the Planck, so eep. :(