[[Analog Joysticks| Analogue Joystick ]] Port (15 Pin SUB-D, female) (CPC Plus only)
The Analogue CPC+ Joystick port is somewhat similar to standard PC Joystick ports - with two some important differences:
* 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 Ground +5V 2 /Fire 1 Player 1 Fire 1 3 X1 Player 1 X (lt/rt) 4 /Joystick 1 GND 5 +5V GND 6 Y1 Player 1 Y (up/dn) 7 /Fire 2 Player 1 Fire 2 8 Ground +5V (Soundblaster: GND) 9 Ground +5V 10 /Fire 1 Player 2 Fire 1 11 X2 Player 2 X (lt/rt) 12 /Joystick 2 GND (Soundblaster: Midi TxD) 13 Y2 Player 2 Y (up/dn) 14 /Fire 2 Player 2 Fire 2 15 Ground +5V (Soundblaster: Midi RxD)* Two analogue joysticks could be connected by using an Y-cable. The Fire signals are ADC hardware in the same as for CPC works only with 180kΩ potentiometers (unlike the normal (digital) joystick port. Joystick 1 buttons should be connected to Pin 2software counters in PCs,4which works with different types,6in range 10K...300kΩ, and joystick 2 buttons to Pin 10,12,14. Like the digital [[Joystick Y-cables]] the analog Y-cable should have or so)'''diodesCaution''' - there is no resistor in the button supply lines.* The A- the 5V/D inputs have an input range of 0V (data = 00) GND pins connect directly to the computers '''2.5V (data = 3Fh)4 Ampere''' power supply - so, and an input impedance of 180k to Vcc.* Not sure if the POTs on there's a good chance that the CPCs analog X/Y inputs are to be wired to 5V or GND reversed polarity will '''destroy''' any electronics (or to both)? Andelectrolyte capacitors, auto-fire circuits, how they are wired on PCs accordingly?etc) in connected PC joysticks.
Pin CPC+ PC ________________________ 1 GND (Pot common) +5V (Pot common) | | 2 /Fire1 Player1.Fire1 | 8 7 6 5 4 3 2 1 | 3 X1 Player1.PotX (lt/rt) \ 15 14 13 12 11 10 9 / 4 /Stick1 (button common) GND (button common) \____________________/ 5 +5V GND 6 Y1 Player1.PotY (up/dn) 7 /Fire2 Player1.Fire2 8 GND (Pot common) +5V (Soundblaster: GND) 9 GND (Pot common) +5V 10 /Fire1 Player2.Fire 1 11 X2 Player2.PotX (lt/rt) 12 /Stick2 (button common) GND (Soundblaster: Midi TxD) 13 Y2 Player2.PotY (up/dn) 14 /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 (there are no diodes between pins 7+14 and 2+10 the mainboard).* The A/D inputs have an input range of 0V (data = 00) to 2.5V (data = 3Fh), and an input impedance of 180kΩ to V<sub>cc</sub>. ==Software using Analog Joystick== *[[Tennis Cup 2 ( Cartridge )]] allows player 2 to use Analog port. ==Compatible Models == *[[Amstrad Analogue Joystick AJ-5]]*[[Sinclair SPJ-1]] [[Category:HardwarePeripherals]][[Category:CPC Internal Components]][[Category:CPC Plus|*]][[Category:Input Device]]