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quadpus posted:Caught a cold and couldn't lay in bed doing nothing, so I ended up recreating a piece of rare old hardware. that's really sick! so what was u58? It's kind of hard to read.
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Mar 24, 2024 21:57
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U58 was a 74F32, as I suspected. U57 was a 74S734, a pretty uncommon chip, which is basically just a buffer, like a 74S244 with supposedly better characteristics for driving the address lines of DRAM. It drives eight of them and one gate of the 74F32 drives the ninth. Speaking of which, there appears to be a tenth address line on the connector, which this board doesn’t use. So it may be possible to use higher density chips, like 1MB SIMMS, and put 6MB onto the board. theoretically. quadpus fucked around with this message at 23:08 on Mar 24, 2024 |
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Mar 24, 2024 22:31
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spent this morning screwing around with a series of rube goldberg scripts to split apart windows 95 .fnt archives into tilesheets of flat bitmaps and then cut them back up and infer the appropriate metadata to turn them into fonts i can use in decker: https://beyondloom.com/decker/goofs/msfonts.html
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Mar 24, 2024 23:00
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 xpost from the weekend thread, but I’m pretty pleased with the progress I made on the weekend! half the time was spent reimplementing the camera, for reasons. getting closer to being able to build, assemble and launch rockets.
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Mar 25, 2024 14:58
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not a project, exactly, but i started taking guitar lessons earlier this year. my wife brought several of her late father's guitars home after he passed, so i figured i should learn how to do something with them, and i'm quite enjoying it! it is a bit funny to me that i'm learning on a guitar that would cost over $3k new
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Mar 27, 2024 02:30
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 I'm holding back from spamming the thread too much, but I'm doing another sprint on the game this weekend and I just finished a milestone. The overview! ~Eventually~ you'll switch between stations, space centers, and celestial bodies here.
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Mar 29, 2024 15:06
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woah, nice!
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Mar 29, 2024 17:51
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  Productive weekend so far! I've got the rudiments of the build system going, no more just spawning modules in with cheats. Also, multi-module crafts, so you can deliver parts on a little tug or shuttle. And I got undocking working, more or less.
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Mar 30, 2024 23:36
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neato
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Mar 30, 2024 23:54
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I'm working on 3d printing a 2 part press form for beer can aluminum
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Apr 4, 2024 20:18
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Gonna start your own license plate business?
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Apr 4, 2024 20:20
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I'm making new progress on a weird idea I'm fixated on of using a camera on a robot arm to automatically take pictures of stuff I sell online. I am also returning a USB cable because its a 90 degree micro-b end that's the wrong way around from what it said it was and product picture shows  so the cable comes out DOWN from the camera instead of UP like it was supposed to, GOD This'll really set me back because I have a clear step-by-step process in my head and now I have no choice but to twiddle my thumbs until the cable issue is solved UGH
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Apr 4, 2024 20:50
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thats always the fuckin worst. you have the motivation and energy to do something now but youre lacking a critical part and then three days when you get the part your brain is 
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Apr 4, 2024 20:57
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The Eyes Have It posted:I'm making new progress on a weird idea I'm fixated on of using a camera on a robot arm to automatically take pictures of stuff I sell online. this is cool as hell. kpop scene is fully invested in the robot camera rigs and its neat cause they can do shots that would make a human camera operator black out from g forces
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Apr 4, 2024 21:08
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Sagebrush posted:Gonna start your own license plate business? yes
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Apr 4, 2024 21:10
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Jonny 290 posted:this is cool as hell. Robots that can move inhumanly smoothly are the best. Nothing else moves like them, it's pure beauty. (That ain't the kind I'm working with of course since I'm not made of $$$ but it's not too bad) I fiddled once with using one of those handheld camera-stabilizer things, thinking I'd mount it on a robot arm and let the gimbals take care of stabilizing the camera while the arm does its thing. That just seems like a pain in the rear end with too many moving parts now, though.
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Apr 4, 2024 21:18
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Apr 4, 2024 21:20
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love weird camera stuff. one of my favorite shots Gopro to the rescue https://i.imgur.com/sieZZnk.mp4
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Apr 4, 2024 21:52
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Wow, that clip really demonstrates how the best camera location for FPV type stuff is chin-level and not forehead or eyeball-level like one might think. It seems really weird and not intuitive at all but that clip really illustrates it well.
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Apr 4, 2024 22:03
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idk where else to post this, is there any good tools for dealing with web-1.0 sites? like i just want a bunch of stubs and links and for something to inject the appropriate navigation box/header/styles for all the pages etc. i mean i could do it by hand or write my own but i don’t feel like it lmao
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Apr 5, 2024 21:07
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I’ve had success with hugo
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Apr 5, 2024 21:07
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I rolled my own theme rather than using a premade one
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Apr 5, 2024 21:08
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Eeyo posted:idk where else to post this, is there any good tools for dealing with web-1.0 sites? like i just want a bunch of stubs and links and for something to inject the appropriate navigation box for all the pages etc. the answer is probably "yes", but i honestly don't think you're describing what you want very clearly. "dealing with"?
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Apr 5, 2024 21:08
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pretty much what i want is a bunch of files i have in a hierarchy that have the main content of a bunch of pages. then i want to run a program/script that auto-generates html files from those stubs, but also with navigation links to all the other files in the hierarchy. like if i just do it by hand i’ll inevitably forget updating one of the pages and then the site is kinda broken.
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Apr 5, 2024 21:20
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yeah that’s exactly what hugo is for
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Apr 5, 2024 21:21
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Silver Alicorn posted:yeah that’s exactly what hugo is for excellent, though i am pretty amazed you got that from the initial post
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Apr 5, 2024 21:26
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alright i’ll check out hugo.Cybernetic Vermin posted:excellent, though i am pretty amazed you got that from the initial post it all made sense in my head…
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Apr 5, 2024 21:41
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 my new computer board arrived and i got it to blink two LEDs, one for each processor core! when i first turned it on i thought something really bad was wrong because the hardware debugger was saying it couldn't detect any processors but it turned out that was because i swapped two pins on the external eeprom chip causing it to pull down the 3.3V voltage rail to the point the processor just wasn't turning on. removing the eeprom fixed that issue for now, might try to bodge wire it on later then later i thought i'd bricked the thing because i was playing around with starting/stopping the processors and got some logic wrong which ended up disabling the debug port, aka the thing i need to upload a patch to my lovely code. that orange wire was part of me trying to figure out how to fix that problem but it wasn't needed - turns out you can connect to one of four debug ports inside the chip so i used one that still worked to load new firmware that reset the port i borked earlier spent a few hours programming up the clock tree to make everything go as fast as recommended by the manufacturer, 480MHz on the big boy M7 core and 240MHz on the baby M4 core. pretty satisfying running that code for the first time and seeing the current draw double and feeling the chip get slightly warm when the code hit the line that enabled the fast clocks. i have a few more cpu init jobs to do, then it's on the the fun bits of making the two cores talk to each other and the outside world. pretty happy with it so far, a normal-to-low level of dumbass hardware bugs for a rev 1 but nothing critically broken PDP-1 fucked around with this message at 00:19 on Apr 6, 2024 |
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Apr 6, 2024 00:16
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https://i.imgur.com/W3xPqHT.mp4 just a quick clip, I'm working on music/audio
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Apr 6, 2024 18:00
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Installed a gopro camera I borrowed instead with a shoehorned macro lens, lets me go wireless so that's something. Also the baked-in video stabilizing the GoPro does actually seems to help a little. Works but I have kind of reached the point where other stuff needs to catch up, the next step is getting a little foggy but I'm pretty happy with what it's doing. 
The Eyes Have It fucked around with this message at 22:49 on Apr 7, 2024 |
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Apr 7, 2024 22:39
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now where's the video it took 
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Apr 7, 2024 22:49
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I'm 3D printing a focus/positioning tool to help me line poo poo up, with all the motion the subject kind of swims around the image instead of being centered when I try to eyeball it.
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Apr 7, 2024 22:51
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The Eyes Have It posted:Installed a gopro camera I borrowed instead with a shoehorned macro lens, lets me go wireless so that's something. Also the baked-in video stabilizing the GoPro does actually seems to help a little. Is that for generating 3-D reconstructions of little coral nubbins? Or is that a horrifying tooth of some sort?
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Apr 8, 2024 06:07
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 made some progress on my homebrew computer thingy - the dual core processor now has a pair of FIFO queues in a shared memory bank that let processor 1 send an arbitrary sized (well, up to 1kB) data blob over to processor 2 and vice versa. each data blob is prepended with a header stating what type of object the data represents and how long it is in bytes so it can get copied out of the FIFO and re-cast to a type on the other end. concurrent access to each FIFO is controlled via a set of hardware semaphores that the processors can take/release in atomic operations to make sure only one of them is reading/writing to a FIFO at a time. in the gif above, LED1 is toggling under direct control of processor 1, LED2 is toggling under direct control of processor 2, and LED3 is toggling when processor 1 sends processor 2 a message object carrying the command 'toggle LED 3' through the FIFO queue system.
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Apr 14, 2024 23:43
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Are you basically creating your own architecture here? That sounds like a challenge for sure! quadpus posted:
Got my first prototype of the SIMM board built   and tested https://www.youtube.com/watch?v=oTYYS3hCulQ and holy loving poo poo it works! I've added 512KB of memory to my portable 286 powerhouse!  Those are actally 1MB SIMMs there, so hopefully I can figure out how to enable the final address line and use all of it. If not, it's trivial to expand to a 6-SIMM version quadpus fucked around with this message at 05:32 on Apr 16, 2024 |
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Apr 16, 2024 05:28
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quadpus posted:tested
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Apr 16, 2024 09:12
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quadpus posted:Are you basically creating your own architecture here? That sounds like a challenge for sure! hot drat. also, the display persistence on that tube
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Apr 16, 2024 12:15
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Silver Alicorn posted:https://i.imgur.com/W3xPqHT.mp4 I'm back on my Laser Squad clone, and the current blocker is how hard it is to draw a pixel-art bean-bag in only 8x8 pixels Current effort:  actually in context it looks sort of ok? 
toiletbrush fucked around with this message at 13:01 on Apr 20, 2024 |
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Apr 20, 2024 12:51
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