Caple C871i Bedienungsanleitung PDF herunterladen (Seite 354)

100

101

Apple II Computer Info

it looks like the PC stick's button wiring.

The mods mentioned above are not difficult, especially if you swap in

a PC cable. If you want to be able to use the stick on an Apple II, then

some kind of switching will be required.

Apple II Joystick

(9-pin male connector) (Old 16-pin IC-style plug)

[2]--------------- +5V ------- 1

[7]--------------- Button 0 ------- 2

[5]--------------- X-axis ------- 6

[8]--------------- Y-axis ------- 10

[1]--------------- Button 1 ------- 3

[3]--------------- Ground ------ 8

PC Joystick

(15-pin female connector)

[1]--------------- +5V

[2] -------------- Button 0

[3] -------------- X-axis

[6] -------------- Y-axis

[7] -------------- Button 1

[4] and/or [5] Ground

Both sticks tie one end of each X, Y potentiometer to +5 and send the

center (wiper) to the an output. (Or the wiper may go to +5V and an end

to the output; it doesn't much matter.) The standard Apple II pot is 150K

Ohms; most PC sticks use 100k Ohm pots.

The buttons are wired differently.

On the Apple II stick (see below), each button switch goes to +5V.

The other end goes to GND through a resistor (one resistor for each

button). A button's Output is from the junction of the switch and its

resistor. When the button switch is not closed, its Output is near 0V

(=logic 0). Pressing a button sends +5V to the output (= logic 1).

+5V

X Button Switch

|_____Button output to Apple (Press => "1")

Z 680 Ohm resistor

GND

As shown below, a PC stick button Output is normally an unconnected

wire. Most likely, inside the computer, a PC or compatible Game Port has

this line tied to a 1k-3k resistor going to +5V. So, the line will

normally be at something close to +5V (= logic 1). Pressing the button

grounds the line and pulls it down near to 0V (= logic 0).

_____Button output to PC (Press => "0")

Apple II Computer Technical Information : Apple II Family Hardware Info

ftp://ground.ecn.uiowa.edu/2/apple2/miscinfo/hardware : May 2001 : 354 of 572

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