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How can I connect a joystick? 
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Novelist

Joined: 08 Sep 2010 07:04
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How can I connect a joystick to the Sprinter 2000? The connector is X1. But what means JK0-JK4?

Normal is:

1 Forward
2 Back
3 Left
4 Right
5 NC
6 Button 1
7 +5V
8 GND
9 NC


Micky


09 Sep 2010 15:04
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JK0-JK4 are your 5 buttons - try connect each of this pins one by one to the ground when any kempston enabled game is active and you will see what is what :)

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09 Sep 2010 19:21
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Try these mapping:
JK0 - right
JK1 - left
JK2 - down
JK3 - up
JK4 - fire

P.S. I found scheme of converter from you 9-pin joystick to Kempston interface:
http://8bit.yarek.pl/hardware/zx.joystick/kjschem.gif

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09 Sep 2010 19:26
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What kind of joysticks are supported by the Sprinter 2000? The joystick I use with my ZX 48K did not work.


Micky


25 Sep 2010 11:26
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-Micky wrote:
What kind of joysticks are supported by the Sprinter 2000? The joystick I use with my ZX 48K did not work.


It's a "Kempston" Joystick - most popular in ex-USSR

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26 Sep 2010 07:35
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Is a Competition-Pro joystick Kempston compatible or not?


Micky


26 Sep 2010 07:42
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See http://www.guildserver.co.uk/tempfiles/sjs-atari.jpg

It looks like what you described in your first post is "Atari" interface, so you need to have Atari joystick to work as a Kempston for this mapping

For old ZX joystick schematic is different

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26 Sep 2010 07:46
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Competiton Pro works on Atari too. Then it is Kempston compatibel and should work.


Micky


26 Sep 2010 08:13
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Shaos wrote:
Try these mapping:
JK0 - right
JK1 - left
JK2 - down
JK3 - up
JK4 - fire

I know now why my joystick did not work:

J_VCC is Joystick GND


Micky


29 Sep 2010 01:57
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It's really strange...

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29 Sep 2010 06:53
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Shaos wrote:
It's really strange...
It is very unusual that VCC is on joystick GND.


Micky


29 Sep 2010 16:00
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check this schematics:
http://www.epanorama.net/documents/joys ... stick.html
it looks like atari's GND is actually "common" wire, but in case of Kemptson interface (at least in Sp2000 schematics) "common" is +5V, not GND, so this is the reason why Kempston +5V should be connected to atari's "GND" (all JK pulled down to real GND through 1K resistors)

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29 Sep 2010 16:30
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