Image Map Image Map
Page 3 of 3 FirstFirst 123
Results 21 to 25 of 25

Thread: Corona Data Systems PPC-11

  1. Default

    So much for subscribing to my own thread giving me reply notifications....

    No I never looked into the keyboard further, it's packed away at the moment but good to know it may be just compressed foam pads? Though in those cases at least some of the keys ought to do something when you pound on'em

  2. #22

    Default

    Quote Originally Posted by EkriirkE View Post
    So much for subscribing to my own thread giving me reply notifications....

    No I never looked into the keyboard further, it's packed away at the moment but good to know it may be just compressed foam pads? Though in those cases at least some of the keys ought to do something when you pound on'em
    Unless of course they've all been pounded on multiple times already. At the very least I can type on the keyboard by touching the contacts with my fingers. A little difficult, but have been able to test some things on the machine. Unfortunately the HDD stopped working in the middle of it all (but I managed to make a backup before that happened, phew!). XT-IDE with CF installed, and all data restored.
    Quick question -- I see in your pictures that you have ROM 3.20. I have 3.10. Do you have an EPROM reader that you could use to take an image of it? I'd be very interested to see the difference...
    I'm still struggling to get CGA emulation to work on this system, and I wonder if it may have been something that was added to the BIOS later ...

  3. Default

    Quote Originally Posted by rvdbijl View Post
    I see in your pictures that you have ROM 3.20. I have 3.10. Do you have an EPROM reader that you could use to take an image of it?
    I do! But you're going to have to wait a few months, I'm in the middle of a move...

  4. #24

    Default

    Quote Originally Posted by EkriirkE View Post
    I do! But you're going to have to wait a few months, I'm in the middle of a move...
    No problem! No rush. This Corona PPC-21 isn't going anywhere!

  5. #25

    Default

    Quote Originally Posted by rvdbijl View Post
    I'm still struggling to get CGA emulation to work on this system, and I wonder if it may have been something that was added to the BIOS later ...
    According to BYTE, the first Corona PPC model(s) didn't do CGA emulation. See https://archive.org/details/byte-mag.../n235/mode/2up - says under 'Graphics' that you'd need to install a real CGA board.
    Some of the later ones like the PPC-400 could do it, but they had a 400-line monitor so they were able to double-scan... with the 325-line models (which seem to include the PPC-21) I don't know how feasible it is.
    int10h.org :: :: :: blog

Tags for this Thread

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
  •