How To rewire an Atari joystick extension cable to use Sega controllers: Difference between revisions

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Sega Genesis / Mega Drive and Sega Master System controllers work without modification in joystick port 0 of Atari ST machines. You can modify an Atari joystick extension cable to work with Genesis / Mega Drive and Master System controllers simply by rewiring pin 7 (+5v) to use pin 5 instead, leaving pin 7 unconnected on the female end of the connector. This works with both 3 and 6 buttons controllers but only the B fire button works.
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Sega Genesis / Mega Drive and Sega Master System controllers work without modification in joystick port 0 of the Atari ST range of machines. You can modify an Atari joystick extension cable to work with Genesis / Mega Drive and Master System controllers simply by rewiring pin 7 (+5v) to use pin 5 instead, leaving pin 7 unconnected on the female end of the connector. This works with both 3 and 6 buttons controllers but only the B fire button works.
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This is the default, unmodified Atari joystick pinout:
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[[File:Atari-joystick-pinout.gif]]

Latest revision as of 16:23, 25 July 2024

Sega Genesis / Mega Drive and Sega Master System controllers work without modification in joystick port 0 of the Atari ST range of machines. You can modify an Atari joystick extension cable to work with Genesis / Mega Drive and Master System controllers simply by rewiring pin 7 (+5v) to use pin 5 instead, leaving pin 7 unconnected on the female end of the connector. This works with both 3 and 6 buttons controllers but only the B fire button works.

This is the default, unmodified Atari joystick pinout: