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Thread: Here is a dump of the character ROM from the TRS-80 DT-1...

  1. #11
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    Jun 2010
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    Vancouver, BC, Canada
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    NF6X recently made a board that can dump the 8051 internal ROM. It essentially hooks up an external ROM and runs a short 8051 program to dump the internal ROM.

  2. #12
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    Jun 2010
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    Quote Originally Posted by Robbbert View Post
    There's already dumps at bitsavers, but let's see if you got a different version.
    Do you have a link for the dumps?

    I searched around for a while but couldn't find them. bitsavers.org is the site, yes?

  3. #13

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    Try this

    http://bitsavers.org/communications/tandy/TD-1

    or you can do a search around the internet for the mame romset "trs80dt1".

  4. #14
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    Jun 2010
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    Thanks. Those are identical to the MAME versions in trs80dt1.zip in case anyone's keeping track.

  5. #15

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    I've reassembled the thing for now, but I shall put on my list to dump the 8051 sometime. Since I plan to actually use this thing, I was thinking about installing a hidden switch somewhere to turn the beeper on and off, so I am sure I'll have it back apart again at some point Soon(tm).

    Thanks again, everyone, for all your help!
    -- Lee
    If you get super-bored, try muh crappy YouTube channel: Old Computer Fun!
    Looking to Buy/Trade For (non-working is fine): TRS-80 Model II,12,16,6000, Mac IIci hard drive sled and one bottom rubber foot, Hercules card + mono monitor (preferably IBM 5151), Multisync VGA CRTs, 040 or 601 card for Mac IIci, Decent NuBus video card, Commodore PC(286+), PC-era Tandy stuff, Aesthetic Old Serial Terminals, Amiga 2000 or 3000UX

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