Announcement

Collapse

Forum Rules and Etiquette

Our mission ...

This forum is part of our mission to promote the preservation of vintage computers through education and outreach. (In real life we also run events and have a museum.) We encourage you to join us, participate, share your knowledge, and enjoy.

This forum has been around in this format for over 15 years. These rules and guidelines help us maintain a healthy and active community, and we moderate the forum to keep things on track. Please familiarize yourself with these rules and guidelines.


Rule 1: Remain civil and respectful

There are several hundred people who actively participate here. People come from all different backgrounds and will have different ways of seeing things. You will not agree with everything you read here. Back-and-forth discussions are fine but do not cross the line into rude or disrespectful behavior.

Conduct yourself as you would at any other place where people come together in person to discuss their hobby. If you wouldn't say something to somebody in person, then you probably should not be writing it here.

This should be obvious but, just in case: profanity, threats, slurs against any group (sexual, racial, gender, etc.) will not be tolerated.


Rule 2: Stay close to the original topic being discussed
  • If you are starting a new thread choose a reasonable sub-forum to start your thread. (If you choose incorrectly don't worry, we can fix that.)
  • If you are responding to a thread, stay on topic - the original poster was trying to achieve something. You can always start a new thread instead of potentially "hijacking" an existing thread.



Rule 3: Contribute something meaningful

To put things in engineering terms, we value a high signal to noise ratio. Coming here should not be a waste of time.
  • This is not a chat room. If you are taking less than 30 seconds to make a post then you are probably doing something wrong. A post should be on topic, clear, and contribute something meaningful to the discussion. If people read your posts and feel that their time as been wasted, they will stop reading your posts. Worse yet, they will stop visiting and we'll lose their experience and contributions.
  • Do not bump threads.
  • Do not "necro-post" unless you are following up to a specific person on a specific thread. And even then, that person may have moved on. Just start a new thread for your related topic.
  • Use the Private Message system for posts that are targeted at a specific person.


Rule 4: "PM Sent!" messages (or, how to use the Private Message system)

This forum has a private message feature that we want people to use for messages that are not of general interest to other members.

In short, if you are going to reply to a thread and that reply is targeted to a specific individual and not of interest to anybody else (either now or in the future) then send a private message instead.

Here are some obvious examples of when you should not reply to a thread and use the PM system instead:
  • "PM Sent!": Do not tell the rest of us that you sent a PM ... the forum software will tell the other person that they have a PM waiting.
  • "How much is shipping to ....": This is a very specific and directed question that is not of interest to anybody else.


Why do we have this policy? Sending a "PM Sent!" type message basically wastes everybody else's time by making them having to scroll past a post in a thread that looks to be updated, when the update is not meaningful. And the person you are sending the PM to will be notified by the forum software that they have a message waiting for them. Look up at the top near the right edge where it says 'Notifications' ... if you have a PM waiting, it will tell you there.

Rule 5: Copyright and other legal issues

We are here to discuss vintage computing, so discussing software, books, and other intellectual property that is on-topic is fine. We don't want people using these forums to discuss or enable copyright violations or other things that are against the law; whether you agree with the law or not is irrelevant. Do not use our resources for something that is legally or morally questionable.

Our discussions here generally fall under "fair use." Telling people how to pirate a software title is an example of something that is not allowable here.


Reporting problematic posts

If you see spam, a wildly off-topic post, or something abusive or illegal please report the thread by clicking on the "Report Post" icon. (It looks like an exclamation point in a triangle and it is available under every post.) This send a notification to all of the moderators, so somebody will see it and deal with it.

If you are unsure you may consider sending a private message to a moderator instead.


New user moderation

New users are directly moderated so that we can weed spammers out early. This means that for your first 10 posts you will have some delay before they are seen. We understand this can be disruptive to the flow of conversation and we try to keep up with our new user moderation duties to avoid undue inconvenience. Please do not make duplicate posts, extra posts to bump your post count, or ask the moderators to expedite this process; 10 moderated posts will go by quickly.

New users also have a smaller personal message inbox limit and are rate limited when sending PMs to other users.


Other suggestions
  • Use Google, books, or other definitive sources. There is a lot of information out there.
  • Don't make people guess at what you are trying to say; we are not mind readers. Be clear and concise.
  • Spelling and grammar are not rated, but they do make a post easier to read.
See more
See less

XT-FDC project level of interest

Collapse
X
 
  • Filter
  • Time
  • Show
Clear All
new posts

    #46
    Hi

    Well good news already! It has begun! We just received a $40 donation so we are 25% of the way there! Woo Hoo!

    I suppose there should be some sort of thermometer thing to measure progress. I'll just post updates here to keep everyone informed.

    In the meantime, I'll start a wiki page stub so we can fill in the details as they are known.

    Thanks and have a nice day!

    Andrew Lynch

    PS, I will keep those who donate anonymous unless they say otherwise. Once the project gets rolling we can post a list of contributors (assuming they want to be seen) on the wiki similar to how the XT-IDE project did.

    PPS, started a wiki stub page below. Feel free to edit with latest information.

    http://www.vintage-computer.com/vcfo...le=XT-FDC+Rev1

    PPPS, donor #2 just came in! w00t! We are 5/16 of the way there!
    Last edited by NobodyIsHere; September 3, 2012, 07:11 AM.

    Comment


      #47
      @Andrew I am willing to be a tester, I just need a Gerber file I have access to a proto milling machine.
      Oh, And go easy on the Via's.

      Comment


        #48
        Originally posted by Crypticalcode0 View Post
        @Andrew I am willing to be a tester, I just need a Gerber file I have access to a proto milling machine.
        Oh, And go easy on the Via's.
        Hi! Thanks! We aren't quite ready yet since we're still hammering out some design points in the schematic. The PCB planform is more or less set although it needs final layout and then trace route optimization. It is going to be a few days at least.

        Thanks and have a nice day!

        Andrew Lynch

        Comment


          #49
          Yay! We are now 7/16 of the way to some prototype boards! Woo Hoo!

          Thanks and have a nice day!

          Andrew Lynch

          PS, feel free to review the XT-FDC wiki entry. Please either make changes or send me the information.

          http://www.vintage-computer.com/vcfo...le=XT-FDC+Rev1

          Comment


            #50
            I volunteer for "build and test".

            Comment


              #51
              Thank you!

              Andrew Lynch

              Comment


                #52
                Hey Andrew, it's possible to have an emergency boot disk image on ROM in this board? A backup free dos with minimal disk utility, with an option to boot using a menu like the one in XT-IDE, this would be very handy. I think there's space to do this with a 27512, and the costs won't be in sky, just an idea, of course.

                Comment


                  #53
                  It's the reason i wanted a slightly bigger ROM socket and use jumpers to correct the pinout.
                  Doing this however has a slight down side.
                  ROM containing a OS should not be reprogrammed in the Board and the cost of the board increases with a few cents but more importantly It would add soldering joints some of them might be bad...

                  Comment


                    #54
                    There's no need to use a bigger socket, take a look into this jameco part, same 28 pins of a 2764. Maybe it's possible to use two ROM versions, one simple (2764) and one with more features (27512), just thinking, I'm not good into this things.

                    Comment


                      #55
                      A DOS 3.3 floppy image in rom? ... YES!!!
                      maybe a jumper to switch this feature on/off...
                      Imagine flashing your prefered DOS to rom and fast booting from a rom drive A. That would be great, but i think it might be a lot of work...

                      Jose

                      Comment


                        #56
                        My idea is to use any free dos, due to copyright issues. You're right, the idea is to make the image on ROM became a floppy in drive A, once I've asked in this forum about doing this on regulars 2764s (to trow into that empty ROM sockets on XT clone boards), but it looked very hard to do. Maybe it will be less difficult to do in a floppy controller, since the computer knows how to boot using a floppy, we "only" need to tell that there's a disk on the A drive, and then point to the image file. Probably Chuck will tell if it could be done. Since the prototype are still into paper, I think it's a good think to ask.

                        Comment


                          #57
                          @Lucasdaytona They are not pin compatible.

                          Comment


                            #58
                            Originally posted by Crypticalcode0 View Post
                            @Lucasdaytona They are not pin compatible.
                            You're right, sorry for the stupid error. I think that a simple pcb could be used to build an adapter, using this we won't have connections problems. This thing is getting better, an adapter to use an OS capable ROM? How cool is that?

                            Comment


                              #59
                              Yes I am interested

                              Comment


                                #60
                                A adepter would only work if the 27512 pinout gets chosen.
                                I am still a fan of adding jumpers in such a case.(not for address and data lines though)

                                Comment

                                Working...
                                X