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#ieee488

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Dirk Wouters<p>Neue Hauptplatine für das Commodore 1541-Diskettenlaufwerk, Teil II </p><p>Hier nun der versprochene 2. Teil über eine neue Systemplatine für das Floppy-Laufwerk VC1541 von Commodore. Ein komplettes Redesign und die Zusammenführung verschiedener Projekte zu einem neuen Controller…</p><p>#1541 <a href="https://mastodon.social/tags/C128" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>C128</span></a> <a href="https://mastodon.social/tags/c64" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>c64</span></a> <a href="https://mastodon.social/tags/commodore" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>commodore</span></a> <a href="https://mastodon.social/tags/CPLD" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>CPLD</span></a> <a href="https://mastodon.social/tags/Disk" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Disk</span></a> <a href="https://mastodon.social/tags/DolphinDOS" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>DolphinDOS</span></a> <a href="https://mastodon.social/tags/Ersatz" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Ersatz</span></a> <a href="https://mastodon.social/tags/Erweitert" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Erweitert</span></a> <a href="https://mastodon.social/tags/Generation" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Generation</span></a> <a href="https://mastodon.social/tags/GPIB" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>GPIB</span></a> <a href="https://mastodon.social/tags/IEEE488" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>IEEE488</span></a> <a href="https://mastodon.social/tags/Laufwerk" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Laufwerk</span></a> <a href="https://mastodon.social/tags/Mainboard" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Mainboard</span></a> <a href="https://mastodon.social/tags/Neu" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Neu</span></a> <a href="https://mastodon.social/tags/PCB" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>PCB</span></a> <a href="https://mastodon.social/tags/SpeedDOS" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>SpeedDOS</span></a> <a href="https://mastodon.social/tags/VC1541" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>VC1541</span></a> <a href="https://mastodon.social/tags/Weiter" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Weiter</span></a> <a href="https://mastodon.social/tags/Xilinx" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Xilinx</span></a></p><p><a href="https://dirkwouters.de/neue-hauptplatine-fuer-das-commodore-1541-diskettenlaufwerk-teil-ii/" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">dirkwouters.de/neue-hauptplati</span><span class="invisible">ne-fuer-das-commodore-1541-diskettenlaufwerk-teil-ii/</span></a></p>
Retrograde<p>Breakout all the things!1</p><p><a href="https://oldbytes.space/tags/IEEE488" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>IEEE488</span></a> <a href="https://oldbytes.space/tags/Electronics" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Electronics</span></a></p>
Retrograde<p>Procrastinating and doing a 'fancy' "7-segment" display for showing the remote readings from the TTi 1906 multimeter on the <a href="https://oldbytes.space/tags/C64" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>C64</span></a>, instead of testing and likely debugging the <a href="https://oldbytes.space/tags/IEEE488" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>IEEE488</span></a> routines like I should be doing (and which requires all sorts of test rig hook-up)... 😬​</p><p><a href="https://oldbytes.space/tags/RetroComputing" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>RetroComputing</span></a></p>
Retrograde<p>Got loaded up with these pieces of kit from <span class="h-card" translate="no"><a href="https://fosstodon.org/@mikkle" class="u-url mention" rel="nofollow noopener noreferrer" target="_blank">@<span>mikkle</span></a></span> today. 👍​ </p><p>The board with the ESP-32 mounted on it basically does what the TTi 1906's <a href="https://oldbytes.space/tags/IEEE488" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>IEEE488</span></a> option (which I don't have) does (i.e. converts between GPIB and RS-232/ARC).</p><p>The separate connector should fit the IEC64 cartridge and provide a standard IEEE-488 connector for the <a href="https://oldbytes.space/tags/C64" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>C64</span></a> side of things.</p><p>So, it seems like the next step in this whole interface-my-multimeter-to-my-c64 project will be me getting down to business and implementing the GPIB bus routines in 6510 assembly. 🤓​</p>
Retrograde<p>If the IEC64 cartridge still has I/O active despite the ROM replacement being jumpered OFF, and there is no further beef with Ultimate 64 Elite compatibility, I recon something like this should prove the MC6821 PIA on it is up for some action... 🤔​</p><p><a href="https://oldbytes.space/tags/ieee488" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>ieee488</span></a> <a href="https://oldbytes.space/tags/c64" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>c64</span></a> <a href="https://oldbytes.space/tags/c64month" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>c64month</span></a></p>
Retrograde<p>I think I'll break out the Ultimate 64 Elite machine instead for the IEEE-488 project. ✨​</p><p>That way I can code on a resident assembler, have convenient embedded storage, and still have the cartridge port free for the IEC64 cartridge.</p><p><a href="https://oldbytes.space/tags/C64" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>C64</span></a> <a href="https://oldbytes.space/tags/IEEE488" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>IEEE488</span></a> <a href="https://oldbytes.space/tags/RetroComputing" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>RetroComputing</span></a></p>
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