Image Map Image Map
Results 1 to 6 of 6

Thread: How to Dump Intel D3624 PROMs

  1. #1
    Join Date
    Jan 2011
    Location
    Vancouver, BC
    Posts
    3,895
    Blog Entries
    2

    Default How to Dump Intel D3624 PROMs

    I'm wondering how I'd go about dumping 3 of these. They contain the monitor (called Supervisor) for a Radio Electronics 2650 SBC kit that I bought. I haven't seen a program listing or dump online, so I'm concerned these may be the only copies available. Figure I should dump them for posterity. I don't intend to build the kit right now as as it's fairly pristine.

  2. #2
    Join Date
    Jan 2007
    Location
    Pacific Northwest, USA
    Posts
    29,553
    Blog Entries
    20

    Default

    Do you have a board/programmer that can read 2708/2716 EPROMs? If so, a little pin bending (the Intel part is single Vcc) and jumpering (multiple chip selects) should get you there.

  3. #3
    Join Date
    Jun 2012
    Location
    UK - Worcester
    Posts
    2,313

    Default

    Chuck just beat me to it!

    You have a 2716 EPROM programmer on the way. Just make up a little adapter board (pins 18 through 22 need modifying slightly).

    You can read it as a 2716 and just use the lower 512 bytes of the image.

    Happy New Year!

    Dave

  4. #4
    Join Date
    Jan 2011
    Location
    Vancouver, BC
    Posts
    3,895
    Blog Entries
    2

    Default

    Quote Originally Posted by daver2 View Post
    Chuck just beat me to it!

    You have a 2716 EPROM programmer on the way. Just make up a little adapter board (pins 18 through 22 need modifying slightly).

    You can read it as a 2716 and just use the lower 512 bytes of the image.

    Happy New Year!

    Dave
    I might need help with the modification bit.. heh!

    I just got the programmer in today and am experimenting with reading various EPROMs I've been curious about. That was really, really fast shipping!

  5. #5

    Default

    I like to stack three layers of machine pin sockets. I can remove the inner layers pins for locations that I don't desire to cross connect ( I always remove VPP. One should note that many programmers for newer parts leave VPP on all the time and should be disconnected when dumping something you care about ). I can always find way to ground or pullup and extra leads other than a CE* pin. Even in cases that the one I'm reading from is larger that the size I'm reading with. A dip switch can handle a few extra address lines.
    Dwight

  6. #6
    Join Date
    Jul 2014
    Location
    New Hampshire, USA
    Posts
    145

    Default

    Matthew D'Asaro has a nice "Universal Adapter" that makes this fairly easy.

    http://www.dasarodesigns.com/product...ersal-adapter/
    EPROM-Programmer-Universal-Adapter-Top-150x150.jpg

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •