Create accountLogin

Recent searches

No recent searches

Search options

Only available when logged in.
mathstodon.xyz is one of the many independent Mastodon servers you can use to participate in the fediverse.
A Mastodon instance for maths people. We have LaTeX rendering in the web interface!

Administered by:

Server stats:

2.8K
active users

mathstodon.xyz: AboutStatusProfiles directoryPrivacy policy

Mastodon: AboutGet the appKeyboard shortcutsView source codev4.3.7

#rc2014

8 posts6 participants0 posts today
Robert Price<p>I’ve now fitted the case to my <a href="https://mastodonapp.uk/tags/RC2014" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>RC2014</span></a> Picasso, and it looks very nice indeed. </p><p>I also found the Easter Egg, but I’m not sure it’s working for me.</p>
Robert Price<p>That’s my <a href="https://mastodonapp.uk/tags/RC2014" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>RC2014</span></a> Picasso built and running.</p><p>Apparently there is an Easter Egg I need to find built into it.</p>
RC2014<p><span class="h-card" translate="no"><a href="https://mastodon.gamedev.place/@Lacey" class="u-url mention" rel="nofollow noopener noreferrer" target="_blank">@<span>Lacey</span></a></span> LOL. No, the <a href="https://oldbytes.space/tags/RC2014" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>RC2014</span></a> Mini II Picasso really is a real thing! </p><p>The April Fool was that everybody thought it was a April Fool :-)</p>
RC2014<p>I know that a few of you have built your <a href="https://oldbytes.space/tags/RC2014" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>RC2014</span></a> Mini II Picasso. Now that Easter is upon us, how many of you have found the <a href="https://oldbytes.space/tags/EasterEgg" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>EasterEgg</span></a> in it? </p><p>Did you even know there is a Easter Egg hidden inside?</p>
John<p>A new piece of art has arrived <a href="https://oldbytes.space/tags/picasso" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>picasso</span></a> 💾🖼️</p><p><span class="h-card" translate="no"><a href="https://oldbytes.space/@rc2014" class="u-url mention" rel="nofollow noopener noreferrer" target="_blank">@<span>rc2014</span></a></span> <a href="https://oldbytes.space/tags/RetroComputing" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>RetroComputing</span></a> <a href="https://oldbytes.space/tags/VintageComputing" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>VintageComputing</span></a> <a href="https://oldbytes.space/tags/z80" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>z80</span></a> <a href="https://oldbytes.space/tags/rc2014" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>rc2014</span></a> <a href="https://oldbytes.space/tags/zilog" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>zilog</span></a></p>
Colin Burgess<p>Hey <span class="h-card" translate="no"><a href="https://oldbytes.space/@rc2014" class="u-url mention" rel="nofollow noopener noreferrer" target="_blank">@<span>rc2014</span></a></span> my RC2014 Mini II Picasso is beautiful! And it booted up correctly first time! (don't know if I was a little disappointed to not be troubleshooting! ;-) )</p><p>Now it's time to connect it to other things... the fun awaits! :-)</p><p>I have a breadboard 6502 (ala Ben Eater) that's dying to meet it.</p><p><a href="https://mastodon.nz/tags/rc2014" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>rc2014</span></a></p>
mos_8502 :verified: 🇨🇦<p>Also present are the reset, IRQ, and NMI active-low interrupt signals.</p><p>All in all, you'll be able to design almost anything you could do for <a href="https://studio8502.ca/tags/RC2014" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>RC2014</span></a> if you have a mind to.</p>
RC2014<p>When I thought about the <a href="https://oldbytes.space/tags/RC2014" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>RC2014</span></a> Mini II Picasso, art was absolutely central to my design.</p><p>No, really it was! Look. Right there in the centre. Art! </p><p><a href="https://z80kits.com/shop/rc2014-mini-ii-picasso/" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">z80kits.com/shop/rc2014-mini-i</span><span class="invisible">i-picasso/</span></a></p>
diyelectromusic<p>That turned out pretty well, considering I'm still pretty new at this OpenSCAD game :)</p><p>Files here: <a href="https://github.com/diyelectromusic/sdemp_3dprints/tree/main/RC2014-Base" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">github.com/diyelectromusic/sde</span><span class="invisible">mp_3dprints/tree/main/RC2014-Base</span></a></p><p><a href="https://mastodon.social/tags/rc2014" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>rc2014</span></a> <a href="https://mastodon.social/tags/openSCAD" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>openSCAD</span></a></p>
diyelectromusic<p>Printing a base for my <a href="https://mastodon.social/tags/RC2014" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>RC2014</span></a></p>
Wintermute_BBS<p>Overnight I've successfully compiled the sources for the <a href="https://oldbytes.space/tags/FUZIX" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>FUZIX</span></a> operating system on my <a href="https://oldbytes.space/tags/Linux" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Linux</span></a> box and this morning, my <a href="https://oldbytes.space/tags/SC130" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>SC130</span></a> successfully booted into FUZIX ... yay! 🥳</p><p><a href="https://www.fuzix.org/" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://www.</span><span class="">fuzix.org/</span><span class="invisible"></span></a></p><p><a href="https://oldbytes.space/tags/rc2014" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>rc2014</span></a> <br><a href="https://oldbytes.space/tags/z80" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>z80</span></a></p>
Robert Price<p>My dual keypad module for the <a href="https://mastodonapp.uk/tags/RC2014" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>RC2014</span></a>.</p><p>This takes advantage on the Z80 IN instruction where the value of A is output on the upper 8 address lines. For keypad 1 I load either 1,2,4, or 8 into the A register, then read the value from the defined IO address. This puts a high across the row, and if a button is being pressed the row that button is in will also be high. In this case I am outputting the values of the column and row to the digital IO module to prove it is working.</p>
RC2014<p>I have been away for a fantastic few days, but with limited and sporadic access to Mastodon. I think I have caught up with all the <a href="https://oldbytes.space/tags/RC2014" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>RC2014</span></a> posts now, but if there's anything I have missed, or you're still waiting for a reply, please let me know.</p>
Wintermute_BBS<p>+++ SYSOP NEWS +++ SYSOP NEWS +++</p><p>As you may remember, RC-BOX BBS - the world's first and (currently) only RC2014 based BBS - has been struggling with connectivity issues.</p><p>The good news: I have finally been able to successfully mitigate these.</p><p>Some background info: in October last year, I decided to do some maintenance on the system, updating my WiFi modem firmware and replacing the SC132 serial I/O module (using a 6.144 KHz crystal for a fixed 9600 bps) with its cousin, the SC110 serial I/O module which features a CTC chip so it can dynamically set any baud rate.</p><p>Turns out that while the module is techincally 100% okay, it sometimes locks up when being used with the BYE.COM program for CP/M.</p><p>I think this has to do with BYE.COM setting the CTC to the selected bps during initializiation (which happens after each hangup). For some reason, this often works but occasionally causes the SIO/2 to lock up.</p><p>Sometimes, without any reason, BYE.COM would drop into an +++ATH loop although no one was connected, not being able to actually perform the AT command.</p><p>It took me weeks to finally realize this, because I was so sure the problem originated from the Zimodem firmware and because the issue only showed up occasionally. It was very annyoing to debug.</p><p>So as a result of this finding, I've put the SC132 with the fixed 9600 bps back into the system. Since then, no more of these issues occurred.</p><p>As always, you can find all info on how to connect to RC-BOX BBS in my profile info.</p><p>P.S.: so now I think the problem originates from the BYE.COM code. But since everything is working properly again, I don't have the desire to dig into the BYE.ASM code any time in the future. There are other projects that I'd like to go on with first.</p><p><a href="https://oldbytes.space/tags/rcbox" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>rcbox</span></a> <br><a href="https://oldbytes.space/tags/bbs" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>bbs</span></a> <br><a href="https://oldbytes.space/tags/rc2014" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>rc2014</span></a> <br><a href="https://oldbytes.space/tags/rc2014bbs" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>rc2014bbs</span></a> <br><a href="https://oldbytes.space/tags/retrocomputing" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>retrocomputing</span></a> <br><a href="https://oldbytes.space/tags/newretro" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>newretro</span></a><br><a href="https://oldbytes.space/tags/z80" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>z80</span></a></p>
Robert Price<p>I've written up how I got my ZX Printer compatible Alphacom 32 printer working on my <a href="https://mastodonapp.uk/tags/rc2014" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>rc2014</span></a> </p><p><a href="https://www.robertprice.co.uk/robblog/using-a-zx-printer-on-an-rc2014/" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://www.</span><span class="ellipsis">robertprice.co.uk/robblog/usin</span><span class="invisible">g-a-zx-printer-on-an-rc2014/</span></a></p>
Dominik<p>Anyone having success running <a href="https://mastodon.xyz/tags/FUZIX" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>FUZIX</span></a> on the <a href="https://mastodon.xyz/tags/RC2014" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>RC2014</span></a> ?</p>
Guido Lehwalder<p>Unsharp Pictures running <a href="https://mastodon.online/tags/RC2014" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>RC2014</span></a> on <a href="https://mastodon.online/tags/MiST" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>MiST</span></a></p>
Guido Lehwalder<p><a href="https://mastodon.online/tags/RC2014" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>RC2014</span></a> Emulation for<br><a href="https://mastodon.online/tags/MiST" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>MiST</span></a> and <a href="https://mastodon.online/tags/SiDi" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>SiDi</span></a> <a href="https://mastodon.online/tags/FPGA" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>FPGA</span></a> <br>available at<br><a href="https://www.atari-forum.com/viewtopic.php?t=44842" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://www.</span><span class="ellipsis">atari-forum.com/viewtopic.php?</span><span class="invisible">t=44842</span></a></p>
0x10f<p>I designed an address decoder for the <a href="https://tech.lgbt/tags/RC2014" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>RC2014</span></a> that uses two 7400 ICs instead of a 74138. Reading any I/O port between 0x00-0x7f should return the state of the button in the least significant bit. 74125 /1OE should be low if RC2014 /IORQ and A7 are low and /M1 and /WR are high.</p><p>Edit: forgot the 100 nF capacitor.</p>
mos_8502 :verified: 🇨🇦<p><span class="h-card" translate="no"><a href="https://oldbytes.space/@MuseumJoe" class="u-url mention" rel="nofollow noopener noreferrer" target="_blank">@<span>MuseumJoe</span></a></span> I keep threatening to do a VERA card for <a href="https://studio8502.ca/tags/RC2014" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>RC2014</span></a>.</p>
SearchLive feeds
About