TK-II Archives

Archives TK-II Dual PS/2 Firmware

This firmware started out life with dual PS/2 keyboard capability baked in, and will work in all the older hardware shown below while supporting this feature. It will also work in some current designs. However it is considered depreciated, and will no longer be implemented in newer hardware designs to come. Also it's important to keep in mind that some of the newer boards absolutely require the 'J' version firmware and will not work correctly with anything else.

The last two updates corrected the following bugs...

The CTRL+SHIFT+Arrow keys combinations will now render the correct Atari key codes.

There will no longer be any interference with the stock Atari keyboard's CTRL, SHIFT, or BREAK keys if the XEGS mode has been toggled OFF (CTRL+ALT+X to toggle, ALT+X to view present setting).

Dual PS/2 Keyboard Firmware Download

Version: 2.6
Date: June 3rd 2021
Exceptions: Will not work for the ARROW2JOY-XLD upgrade, TK-II-PBJ, or the 576NUC+

File Includes:

Flashing ATR: run from SIO2PC for the JOY2PIC Programmer
Flashing XEX: run from Loader for the JOY2PIC Programmer
HEX File for 3rd Party Programmers like the PICkit series

Go to On-Line Manual

Note For the TK-II-Stereo Boards: After assembly and before plugging in the Pokey chip(s), be sure to program the on-board PIC chip via the board's ICSP header prior to installation in the Atari .

Archives TK-II Old Version Boards

TK-II-XEGS

TK-II-XEGS_schematic.pdf
File Size:	23 kb
File Type:	pdf