off-topic • Re: New laptop quandry
I don't know the UK PC market at all, but are ex-lease resellers a thing in the UK? If they are, and they're anything like Canada, you can get a clean, refurb business class Thinkpad for about the...
View Article32-bit acorn hardware • Re: Dead RiscPC #4 - resistors in VIDC20 control...
During the "coloured screens" phase, I can't get any signal on Vclk1. Then, when it switches to "no video signal" a steady 24MHz sine wave appears. Its peak to peak voltages are only 300mV to 800mV...
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32-bit acorn hardware • Re: Genuine Acorn Joystick Adaptor for RiscPC
I really need to get it in an A7000 I think.Set to analogue mode, and in an A7000+ ...IMG_4515.JPGCorrectly identifies as analogue. Joystick A works - full analogue ... but "left" and "down" are...
View Articleprogramming • Re: Routines to scan ROMFS catalog
These are great, and I like the attention to making a demonstration program.I hesitate to comment, but doing arithmetic on the index rules out use with a compressed ROM, the very time you have to...
View Article8-bit acorn hardware • Re: Faultfinding on the 1MHz Bus
Before going any further, I trust that you have cleaned and inspected the connector? It's not a dirty pin or a dry solder joint?I'm wondering if one of the control signals is marginal.If one or more...
View Article8-bit acorn hardware • Re: Creating ROM's
Well, if you want to wait, bright sunlight (direct not behind clouds and preferably not behind glass) will eventually erase them. But we are talking weeks...MarkStatistics: Posted by 1024MAK — Mon May...
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acorn atom and acorn system series • Re: Acorn Atom / Basic Conversion card/...
An Atom does not need a 6522 for its disc drive. IC4 (DP8304) is more important. The BBC MOS ROM needs the 6522 for the timer.Thanks for clarifying this... Statistics: Posted by Multiwizard — Mon May...
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32-bit acorn hardware • Re: Attempting to build A3000 parallel port, two port...
I created a smallified version, just because.https://github.com/IJeffray/ParallelJoysticksIMG_4251.JPGIMG_E4249.JPGComponents are on the bumside...IMG_4273.JPGAwww very cute! Statistics: Posted by...
View Article8-bit acorn hardware • Re: RGB to HDMI using a Pi Zero and a small CPLD
@IanB I'd be happy to test your new audio board. I have a NES PPUDigitizer with RGB to HDMI setup that would be perfect with audio. Please send me a pm if you have some PCBs left.Sorry I don't have...
View Article32-bit acorn software: other • Re: creating adf images for archimedes
hello,what s the best tool on win10 to create a 800K ADF image with custom files?I've need to bring an app on my acorn but I have only a gotek, and a floppy drive.Option2: Can I write acorn disks with...
View Article32-bit acorn hardware • Re: Mode 32
Oh that's really interesting - so it's not the video hardware at all, it's how quickly it can pluck the data from the ram chips. I think my A5000 has its 4mb ram on a tidy little daughterboard, if...
View Article32-bit acorn hardware • Re: Troubleshooting an A5000
Is the most important thing to get the data off of the hard drive so that the books can be printed? If the hard drive still functions that shouldn’t be too difficult. If you mention your rough...
View Article8-bit acorn hardware • Re: Replacement Serial ULA module for the BBC Micro
I received a new ready made serial comms cable today (thanks Sprow: https://www.sprow.co.uk/bbc/extraserial.htm#Crossover), found an old USB / Serial adaptor, and hey presto.This is with RxD, TXD, RTS...
View Article8-bit acorn hardware • Re: Z80 Protocol Decoder
I've set my HP to capture all those signals in that order, then edited the capture to take out all extraneous spaces and end up with this:I've tried to post-process the "binary ascii" file into...
View Article8-bit acorn emulators • Re: Opus DDOS: Interesting seek behaviour
It seems I have been giving the writers of DDOS too much credit. The long seek was being caused by DDOS issuing a seek command having not loaded the data register with anything. B-Em's 1770 emulation...
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8-bit acorn emulators • Re: Exact timing of Acorn Electron
How do I enable it? I just can’t work it out, either from the menus or the cfg file. I am on Elkulator 1.00, not sure if that’s the correct version, but I can’t seem to find a later one.No config,...
View Articleother vintage hardware, software and languages • Acorn AKF30 monitor not...
Hi,Just purchased a Master, B, and AKF30 monitor and initially checking them over.Upon first boot with the Master I got white text and could generate all available colours, but later got an unsteady...
View Article8-bit acorn hardware • Re: What year was my BBC Master 128 manufacturered?
The reason I asked is because I'm curious of its exact age. It's in out of the box condition.Statistics: Posted by Distorted Vision — Fri May 23, 2025 10:49 pm
View Article8-bit acorn software: classic games • Re: Economical BBC-Elite Programming
I'm pretty certain that circles in Elite are just polygons. So on the basis that vertices cost more, they are the least economical shape.Statistics: Posted by jms2 — Fri May 23, 2025 11:06 pm
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8-bit acorn hardware • Re: Help with MMFS
Can I use the B version of mfs in a B+ to do it using the sideways ram? I can't think why it wouldn't work but don't have a B+ to hand Statistics: Posted by tricky — Fri May 23, 2025 11:07 pm
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