candle Posted January 28, 2012 Share Posted January 28, 2012 Hi! Could someone sum up RAM-SLOT 3 expansion modules for Atari 400/800? I know there is some kind of graphics card (80 column text-only display i belive), but there might be others i don't know about It essencial for my work on new personality board, and since i'm finnishing with routing of the later one, it would be nice to have it served rather than digged out Sebastian Quote Link to comment Share on other sites More sharing options...
Roydea6 Posted January 28, 2012 Share Posted January 28, 2012 http://www.atariage.com/forums/topic/154535-austin-franklin-80-information/page__view__findpost__p__1891934 Austin Franklin 80 column card info is on the thread. Quote Link to comment Share on other sites More sharing options...
candle Posted January 29, 2012 Author Share Posted January 29, 2012 Thanks Roy I've found Austin-Franklin 80 colum card, Bit-3 equivalet, and some memory cards thats all i found what i need is any information if above two can work with slots 1 & 2 unpopulated (some daisychaining involved) Quote Link to comment Share on other sites More sharing options...
Roydea6 Posted January 29, 2012 Share Posted January 29, 2012 (edited) The orignator of this thread should be able to help you out. ' ClausB ' http://www.atariage....ost__p__2220617 Edited January 29, 2012 by rdea6 Quote Link to comment Share on other sites More sharing options...
ClausB Posted January 29, 2012 Share Posted January 29, 2012 what i need is any information if above two can work with slots 1 & 2 unpopulated (some daisychaining involved) I very much doubt that that the 80-column cards used the "daisy-chain" RAM select signals on slot 3, because most 32K cards (especially the Axlon) for slot 2 did not pass a RAM select signal to slot 3. Quote Link to comment Share on other sites More sharing options...
Rybags Posted January 29, 2012 Share Posted January 29, 2012 I think candle wants to know if any configs work with only a card in slot 3. Given the way the RAM expansion works, I'd probably think not since the passthru signals won't be present. Quote Link to comment Share on other sites More sharing options...
candle Posted January 29, 2012 Author Share Posted January 29, 2012 exacly Quote Link to comment Share on other sites More sharing options...
ClausB Posted January 29, 2012 Share Posted January 29, 2012 AFAIK, no RAM card will work alone in slot 3 without loopbacks or jumpers. I think an 80-column card in slot 3 will work without RAM cards in slots 1 and 2 because I don't think it uses the RAM select signals. I think an 80 column card uses the I/O page select signals -Y5 and -Y6, and possibly -EXSEL. But I am not absolutely sure, because I don't have one. Quote Link to comment Share on other sites More sharing options...
candle Posted January 29, 2012 Author Share Posted January 29, 2012 from what Warerat wrote in Austin-Franklin 80 column card thread it seems so (Y5,Y6 and possibly EXTSEL for character rom) Quote Link to comment Share on other sites More sharing options...
sup8pdct Posted January 30, 2012 Share Posted January 30, 2012 I do recall in an early antic, an add for some storage soulation (i think) replaced the whole top. what and how is unknown. any one remember it? james Quote Link to comment Share on other sites More sharing options...
+David_P Posted January 30, 2012 Share Posted January 30, 2012 I recall reading an article by David Small where he mentionned a disk system he sold that connected through the OS board - could that be what you're remembering? Quote Link to comment Share on other sites More sharing options...
BillC Posted January 30, 2012 Share Posted January 30, 2012 I recall reading an article by David Small where he mentionned a disk system he sold that connected through the OS board - could that be what you're remembering? I believe you are referring to the ADS Integrater board, mentioned in the thread below. http://www.atariage.com/forums/topic/182024-corvus-interface-ads-integrater/page__view__findpost__p__2281268 Quote Link to comment Share on other sites More sharing options...
sup8pdct Posted January 30, 2012 Share Posted January 30, 2012 no. It was a box that sat on top replacing the lid. No one has said any thing about it so am assuming it is rare. James Quote Link to comment Share on other sites More sharing options...
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