Forum Rules and Etiquette

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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
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  • 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.
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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:
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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
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What to do with these 6 STM32F Blue pills???

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    What to do with these 6 STM32F Blue pills???

    So I bought SIX STM32F103C8T6 Blue Pills from Amazon (chinese Seller). I bought them as I am making a bunch of the BlueSCSI devices
    What they ended up sending me was 6 STM32F103C6T7 blue pills which only have 32KB. So not enough to work on my project. Does anyone know a project I can build that can use these exact blue pills? If not does anyone want all 6 for the cost of shipping? I would hate to throw them out.

    I was going to say Blue SCSI.


      Originally posted by Towmater View Post
      I was going to say Blue SCSI.
      Then you didnt read my thread.


        Will a Greaseweazle fit in one?
        I use one for the cheap IBM iPoint IR keyboard-to-PS/2 interface.
        I believe that there are even plans out there for a cheap oscope and a logic analyzer. Really, they're pretty versatile for small jobs.
        Last edited by Chuck(G); October 7, 2021, 08:21 AM.
        Reach me: vcfblackhole _at_ protonmail dot com.


          The point I am trying to make is these are cost reduced and memory reduced Variants of the Blue pill. They only have 32KB storage so the projects would be limited to that. Notice the different model number in my first post.


            Originally posted by Chuck(G) View Post
            Will a Greaseweazle fit in one?
            Scanning through the Wiki it looks like it won't, unfortunately. Seems to say anything but a C8 is a deal breaker.
            My Retro-computing YouTube Channel (updates... eventually?): Paleozoic PCs Also: Blogspot


              I'd give it a try anyway; the F1 .hex file is only 45K long, which means that the actual binary is about half that (highest load address is 4FE0). The 32KB F103's aren't terribly common in the hobbyist world, but they should be useful nonetheless. 32KB of flash on a dedicated MCU is still quite a bit of memory in the low-end MCU world. Consider the AT-to-XT converter that does its work in a 512 flash byte MCU.

              Reach me: vcfblackhole _at_ protonmail dot com.


                I havent been able to find any plans/kits I am interested in using that can take this thing. I was hoping someone might know of one. Well if not no big deal. Anyone wants all 6 for the cost of shipping just send me a PM.




                    I put a version of Forth on one. I don't use the Arduino IDE or any tools. I program them through the serial. I made a AT keyboard to parallel converter and a couple other things. I was going to make a SD card disk system but got distracted. I got to the point that I could read and write to them and I expect to finish it some day. They have both Flash and EEPROM. They are cheap but for a larger projects, the STM32F407 are better.
                    The processor is fast enough to do floppy stuff. It is the same processor used in those cheap floppy replacement boxes that you plug a USB into. They can't be a USB master but can be a USB end.
                    They are still fun little part. One port is 5V tolerant, with pullups on outputs. The other ports are 3.3V. They have analog in and PW analog out. Several timers that can run DMA if one likes.