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Soarer PS/2 to USB keyboard converter

https://deskthority.net/workshop-f7/xt-at-ps2-terminal-to-usb-converter-with-nkro-t2510.html

Keyboard protocols supported:

  • XT (scan code set 1)
  • AT (scan code set 2)
  • PS/2 (MF2) (extended scan code set 2)
  • Terminal e.g. 3179/318x/319x (scan code set 3)

Configurable Features:

  • Remapping
  • Layers
  • Macros
  • On-the-fly Config Selection

Other Features:

  • Full NKRO, if the keyboard supports it (even on Macs!)
  • Boot mode support (even with faulty BIOS!)
  • Auto-detection of the keyboard type
  • XT and AT boards are remapped correctly for PrtSc etc.
  • 1000Hz polling using Full Speed USB
  • Suspend and resume support
  • Media and Power key support
  • Jump to bootloader function (update firmware without pressing the reset button) (v1.0+)

Hardware

You need

  • ATMega32U4 Microcontroller/Arduino. E.g. Arduino Pro Micro
  • PS/2 female connector

PS/2 -> Arduino

  • Data (green or blue) -> PD0 (Pro Micro: 3)
  • CLK (white or purple) -> PD1 (Pro Micro: 2)
  • 5V (red) -> 5V
  • GND (black) -> GND
Arduino Pro Micro pinout

http://www.pighixxx.com/test/wp-content/uploads/2016/07/pro_micro_pinout_v1_0_red.png

PS/2 pinout

http://ezcontents.org/sites/default/files/ps2_pinout.png

Firmware

https://deskthority.net/workshop-f7/xt-at-ps2-terminal-to-usb-converter-with-nkro-t2510.html

Soarer_Converter_v1.12_update.zip: https://deskthority.net/resources/file/8295

Flasher

https://sourceforge.net/projects/winavr/

Flashing

avrdude -p m32u4 -b 57600 -P com5 -c avr109 -U flash:w:Soarer_at2usb_v1.12_atmega32u4.hex

Bootloader mode: RST to GND two times. You have couple of seconds to start flashing. Serial port can be different than in normal mode.

Testing/Debugging

hid_listen.exe: https://www.pjrc.com/teensy/hid_listen.html

Settings/Tools/Docs

Tools (Soarer_Converter_v1.10.zip):

Docs (Soarer_Converter_v1.12_docs.zip):

Tools from Soarer_Controller_v1.20_beta4.zip doesn't work!:

protocol version check: converter=1.00, scwr=1.00: ok
settings version check: converter=1.01, file=1.03: failed

Compile text file to binary

scas xarcade.txt xarcade.bin

Upload config (effective immediately)

scwr xarcade.bin

For deleting all settings, make empty file and assemble and upload it.

Compile tools with Linux (e.g. Raspberry Pi, Orange Pi)

sudo apt install build-essential
unzip Soarer_Converter_v1.10.zip
cd tools
unzip Soarer_sctools_v1.10_source.zip
cd build/linux
make

Links

Keyboard controller

X-Arcade (xarcade.txt)

# scas xarcade.txt xarcade.bin
# scwr xarcade.bin

# important!:
force set2ext

# dir1 keypad 8 (75),2 (72),4 (6B),6 (74)
# sel1 3
# start1 1
# A,B,C: left shift (12),Z,X
# X,Y,Z: left ctrl (14),left alt (11),space (29)
# lowerbuttons: c,5

remapblock
# left controller
	PAD_8	W
	PAD_2	S
	PAD_4	A
	PAD_6	D
	LSHIFT	SPACE
	
	Z	F
	X	G
	LCTRL	R
	LALT	T
	SPACE	Y
	C	V # "normal"
	# C	RCTRL # "commando"
	5	B
	3	Q
	1	E

# right controller
	R	PAD_8
	F	PAD_2
	D	PAD_4
	G	PAD_6
	W	RCTRL

	E	K
	LEFT_BRACE	L
	A	I
	S	O
	Q	P
	RIGHT_BRACE	N # "normal"
	# RIGHT_BRACE	SPACE # "commando"
	6	M
	2	U
	4	J
endblock

# dir2 r,f,d,g
# sel2 4
# start2 2
# A,B,C: w,e,}(å)(54="[")
# X,Y,Z: a,s,q
# lowerbuttons: ;(¨)(5B="]"),6

X-Arcade BMC64 emulator

IBM model F XT

Colors: https://geekhack.org/index.php?topic=17458.msg616598#msg616598

Brown = Vcc
Red = Ground
White = Data
Black = Clock

Soarer_Converter_v1.12_docs/docs/hardware.html/hardware.html

GND	GND
Vcc/+5V	VCC
Data	PD0
Clock	PD1

Conlusion:

Brown = Vcc (5) -> VCC
Red = Ground (4) -> GND
White = Data (2) -> PD0 (Pro Micro: 3)
Black = Clock (1) -> PD1 (Pro Micro: 2)

X-Arcade With Mister FPGA