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Analog Joysticks

12 bytes removed, 14:13, 4 April 2010
/* Analog PC Joysticks */
* '''Resistor Values''' - In PCs, the A/D conversion is done by software timings, meaning the PCs could handle joysticks with different potentiometer types (anything from 10 kiloohm to many megaohm should work). The CPC+ does the A/D conversion by hardware, this requires less CPU load, but it also means that it requires fixed potentiometer types (circe '''138K''' ohm).

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<br><br>** Analog PC joysticks are reportedly most commonly using '''100K''', '''120K''', or '''150K''' ohm pots. These types should be more or less compatible with the CPC+ (100K/120K won't reach the ADC=3Fh max value, for example, resolution might be only ADC=00h..30h. 150K would be clipped to ADC=3Fh for anything above 138K ohm.<br><br>** To handle those different pot types, CPC+ software should include calibration options. There are also some PC joysticks with incompatible pot types like '''300K''' ohms - these won't work (since values above 138K will be clipped).
== CPC+ Software with Analog Joystick Support ==
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