* 5V and GND are exchanged with each other, and,
* on CPC+ the buttons must be connected to a "select" line (instead of to GND).
Pin CPC+ PC ________________________ 1 GND (Pot common) +5V(Pot common) | | 2 /Fire 1 Player 1 Fire Fire1 Player1.Fire1 | 8 7 6 5 4 3 2 1| 3 Pot X1 Player 1 X Player1.PotX (lt/rt) \ 15 14 13 12 11 10 9 / 4 /Joystick 1 Stick1 (button common) GND(button common) \____________________/ 5 +5V GND 6 Pot Y1 Player 1 Y Player1.PotY (up/dn) 7 /Fire 2 Player 1 Fire 2Fire2 Player1.Fire2 8 GND (Pot common) +5V (Soundblaster: GND) 9 GND (Pot common) +5V 10 /Fire 1 Player 2 Fire1 Player2.Fire 1 11 Pot X2 Player 2 X Player2.PotX (lt/rt) 12 /Joystick 2 Stick2 (button common) GND (Soundblaster: Midi TxD) 13 Pot Y2 Player 2 Y Player2.PotY (up/dn) 14 /Fire 2 Player 2 Fire2 Player2.Fire 2 15 GND (Pot common) +5V (Soundblaster: Midi RxD)
* Two analogue joysticks could be connected by using an Y-cable. The Fire signals are the same as for the normal (digital) joystick port. Joystick 1 buttons should be connected to Pin 2,4,6, and joystick 2 buttons to Pin 10,12,14. Like the digital [[Joystick Y-cables]] the analog Y-cable should have '''diodes''' in the button lines.
* The A/D inputs have an input range of 0V (data = 00) to 2.5V (data = 3Fh), and an input impedance of 180k to Vcc.
* Not sure if the POTs on the CPCs analog X/Y inputs are to be wired to 5V or GND (or to both)? And, how they are wired on PCs accordingly?
==Softwares using Analog Joystick==