CDTV_PS2Mouse_Joy

Arduino PS/2 mouse and joystick adapter for Commodore CDTV

This project aims to read data from a PS/2 mouse and a normal Amiga/Atari/C64 joystick and translate it to the weird serial protocol that the Commodore CDTV uses.

• Single Arduino .ino file, without any dependencies. Easy peasy.
• Utilises hardware features as much as possible. Robust design.
• At the time of writing, probably not working very well. Untested with a proper CDTV (mine is still in storage). Looks good on my scope though :)

Mouse connection (Mini-DIN 6 female)

Arduino Pin	Description	Mouse
5V	PS/2 POWER	4
2	PS/2 CLOCK	5
4	PS/2 DATA	1
GND	PS/2 GROUND	3

Joystick connection (DB9 male)

Arduino Pin	Description	Joystick
A0	JOYSTICK RIGHT	4
A1	JOYSTICK LEFT	3
A2	JOYSTICK DOWN	2
A3	JOYSTICK UP	1
A4	JOYSTICK BTN2	6
A5	JOYSTICK BTN1	5

Output (Mini-DIN 4 male)

Arduino Pin	Description	Mini-DIN 4
GND	GND	1
GND	GND	2
3	PRDT (CDTV serial data)	3
5V	POWER	4