#micro8088 — Public Fediverse posts
Live and recent posts from across the Fediverse tagged #micro8088, aggregated by home.social.
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Working on my Micro 8088 and got the floppy controller done! But I forgot the 3.5" floppy uses a different power connector size (feels like a 1993 rookie mistake.) So waiting on an adapter. In the mean team, switched to my VGA board for some fun.
#Retrocomputing #Windows #Microsoft #vintagecomputing #Micro8088 #8088 #diy #soldering
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IT WORKS!!!! Micro 8088 booting from a XT-IDE-Lite board :) An amazing friend sent me an CF image so I can test as no FDD controller yet to boot. Video via Graphics Gremlin HDMI board.
Original vintage 8088 CPU, 640K of RAM and DOS 6.22 SD card drive image to test.
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They came! Can't wait to get back to work on my Micro 8088 project 😍
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The PROTON PT8010F is a clone of the more widespread Faraday FE2010A. Both are basically XTs on a chip. Just add a CPU and DRAM, ROM and a bit of glue logic and you have got an IBM PC.
#retrocomputing #nuxt #micro8088 -
Got a genuine #Intel #8088
CPU and got a clip on heatsink for the #8087 math co-processor as was baking which apparent is normal for that generation.Also kinda cool as I got an ISA dual COM port board from 1989, set IRQ and I/O lines and it came right up. This person paid money at the time to upgrade to 16550s I see with increased FIFO ! :D
Next up:
- Figure out why keyboard isn't working
- Get a floppy disk controller soldered -
Today's project; storage for the Micro8088! Hoping to try booting it soon with an actual OS 😊
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FIXED IT!!!! Turns out of the 100s of pins I soldered for the ISA bus, there was a solder bridge on the backplane. Quick fix and it boots!!!!
#Micro8088 #VintageComputing #8088
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Ok, had some time to try a couple different ISA video cards and both seem to show corrupt video. BUT I do hear the happy beeping from the board so I think it's booting? May need to reach out to forums for help.
#Micro8088 #VintageComputing #8088
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Got a package today with some new boards for my next project 😻
#Micro8088 #VintageComputing #8088
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@sos Which version of the Wolfenstein3D do you use?
I ask because i have #Micro8088 with NEC V.20, 8087 and VGA and i have problems to run it. -
A while ago I accidentally fried the EEPROM containing the BIOS in my #NuXT (IBM #PCXT compatible) machine.
I finally got around to dropping in a replacement, but also wanted to upgrade it at the same time.
At first the machine wouldn't boot and it took me a long time to realize a bug had been fixed in a later BIOS revision, requiring a wipe and reinstall of MS-DOS. A complete wipe. dd /dev/zero.
The NuXT is based on the #micro8088 but with the IDE controller at a different port, so the NuXT has its own BIOS image, however the official NuXT image hasn't been updated for quite some time, but the Micro 8088 sees regular updates.
After even more faffing about with builds and tools, I finally had an up-to-date NuXT BIOS image with both V20 and universally compatible XT-IDE option ROM, what #Monotech calls a "hybrid" BIOS.
I have put it up on GitHub, it should be slightly easier to update it in the future. And there's a binary if somebody else needs it. -
#mytopshelf for #homebrewcomputing and #retrocomputing
On the left, a #micro8088 on a 7 slot homebrew #backplane. All boards are #selfbuilt, some self designed. Below that, a rather generic #ibmat clone, on the right a ln #ibm5160 #motherboard with some custom cards in, including my #cga reproduction #videocard.