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FozzTexx /
npub12cn…fgpx
2024-06-07 21:41:46
in reply to nevent1q…ukl7

FozzTexx on Nostr: The ACIA in the Super Serial Card is designed around half-duplex communication so it ...

The ACIA in the Super Serial Card is designed around half-duplex communication so it disables transmit when software turns off RTS. My idea is to use DTR to make RTS appear low when transmit is enabled, and vice-versa when receiving.

This is the schematic. Three modes: a single serial connection to the QuickTake; two serial ports as needed by the IIc; or a hack of combining RTS+DTR which should work with the SSC (after I hack the serial driver).

#RetroComputing #VintageComputing #electronics

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