32-bit acorn hardware • Re: Another unwell Risc PC
OK, looks like IC33 (ALC244 buffer) is very dead. checked the inputs against the outputs for the first 2.5 seconds after power on. IC30 (next buffer along, bits 16-23) behaves normally, activity on...
View Article32-bit acorn hardware • Re: A3020 - FS2 & FS3
Otherwise, maybe some hardware failure which has been removed/fixed?When I examined the machine on receiving it, both C200 and C201 on the PS look to have leaked electrolyte. I'm wondering if this...
View Article8-bit acorn hardware • Re: Acorn Electron Plus 1 ROMs
My new Plus 1 Support ROM arrived this morning and after installation, I'm now getting the "RH Plus 1" on startup and both *ROMS and *HELP show up correctly. Thank you, Dave Hitchins!Not sure if this...
View ArticleIntroduce Yourself • Re: Hello from Germany!
Welcome to the forum, Thomas . . . Enjoy . . . Dave H.Statistics: Posted by daveejhitchins — Fri Jan 03, 2025 9:42 pm
View Article8-bit acorn hardware • Re: Loading Second Cartridge
2 - Unlike on the BBC micro, on the Electron there is no way to put alternative languages (like VIEW) in a higher priority position than BASIC, so that the machine powers up in that language. You...
View Article8-bit acorn software: other • Re: Bugs in log and trig functions of Basic 4r32
Are you sure there is anything being done in single-precision here?You're right: Matrix Brandy uses double precision by default. If I really wanted to see this in single precision, I'd have to port it...
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32-bit acorn hardware • Re: Archimedes a3010 keyboard drive LED
Don't you have this backwards? The LED drivers are open collector - i.e. you switch them to ground to enable the LED - the common 5V on pin 16 of SK3 is the positive side of every LED - you can see...
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8-bit acorn hardware • Connecotr for Acorn Communicator Serial Port
Does anybody know the correct type of connector to use for an Acorn Communicator's serial port? It looks like a back to front phone plug like these https://www.ebay.co.uk/itm/234426019333 - but they...
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new projects in development: games • Re: Apache Valley - possible new...
Lots of progress over the Christmas break - title screen & instructions added- helicopter accelerates/decelerates to keep 0xC0DE happy - sound effects for bullets, missiles, power ups and...
View Articleother vintage hardware, software and languages • Re: Tatung Einstein and BBC...
Thanks all.With this there is one common motor on / load head control signal and up to four independent drive / device select control signals.The PC has a similar interface, but actually uses drives...
View Article8-bit acorn hardware • Re: MASTER 128 Startup issues : UPDATE STILL ISSUES
I'd still say the voltage is a bit low. Mine would go to terminal when the config was corrupted. There's were issues with the logic going to the chip, so can't say exactly how much was bad, but took...
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general • Re: Blasted StarDot cookies
It's ridiculous because instead of a bookmark to *. I get thrown to the cookie error page, then have to click login TWICE to actually get to a login page, log in, then get the sodding cookie page...
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8-bit acorn hardware • Re: RGB to HDMI using a Pi Zero and a small CPLD
Awesome work getting the VideoNuLA to work with RGBtoHDMI. I was just wondering, I can see that the gerber files and bill of materials are on github for the extender board, but are these avaliable for...
View Articlemiscellaneous new bbc and electron games • Re: Acornsoft Maze v2 (BBC Master...
Talking of which - is the red shading of, I assume, unexplored areas a new feature? I don't remember it in the original. And not been able to recreate it in the new version either now. Did I dream...
View Article32-bit acorn hardware • Re: A3010 - very crackly audio problem
Bumping this thread! I have an A4000 with exactly the same problem (a very loud crackle out of the speaker as soon as the machine is turned on), which persists after recapping the SMD caps and...
View Article32-bit acorn hardware • Re: RiscPC VRAM - DIY
We'll see what happens when I build one up using eight of these fresh HM538253BTT-7 partsStill without the chokes (due Monday), I built up a second board with all new parts, and it's showing fewer...
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8-bit acorn software: classic games • Re: Repton 2 [pre-release]
Yes - if you can complete it Statistics: Posted by Cybershark — Sat Jan 04, 2025 10:53 pm
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8-bit acorn software: other • Re: The BBC Micro ROM Library
Hi without sounding ungrateful: Is there any easy way that the link to the library could be changed slightly or tweaked so that it works under the MAC OS browser Safari?The link initially works but...
View Articlegeneral • Re: Needed info: How are GND and data lines pared in parallel...
it's supposed to be a "real" parallel cable, DB25 male to DB25 male, intended to connect a PC's parallel I/O to a measuring device, of more than €1000.00, which has differential I/O.A "DB25 to DB25"...
View Article8-bit acorn hardware • Re: FPGA advice
Hi folks. Thanks for all your replies.Regarding the lack of DRAM, I’m now looking at:https://digilent.com/shop/arty-s7-spart ... ent-board/With:https://digilent.com/shop/pmod-vga-vide ......
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