32-bit acorn hardware • Re: A4000 floppy issues
I notice that none of the analogue components around this area are fitted on this machine, nor on any other photos I can find online. This is weird, because the schematic doesn't say "not fitted", and...
View Article8-bit acorn hardware • Re: Game assist cartridge [idea]
Now if the Raspberry Pi Foundation could put a nice set of serial links onto the silicon that would accept code to boot from, we could finally have our cheap Transputer...I have recently built a board...
View Article8-bit acorn hardware • Re: Who else is building a Beeb from scratch?
Delighted to say my new board is up and running! Just one minor panic at first switch on with the continuous low beep, but that turned out to be caused by a few jumpers I'd missed.Congratulations!...
View Article32-bit acorn hardware • Re: L@@K Amazing Super Rare Acorn A3005!!!!
Is there any date-code on the keyboard which would identify it as considerably later (ie. A3010 era) than the motherboard?The normal A3000 keyboard has different coloured special keys, they are much...
View Article8-bit acorn hardware • Re: Adding a Switch to Aux Power Cable
Well, technically you only need a DPST. But DPDT toggle switches are more common.With a DPDT, each output wire (one +5V and one +12V) goes to each of the centre pins. Each input wire (one +5V and one...
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8-bit acorn software: classic games • Re: Exploring and extending the elite...
Hey Martin, great to see you back on the forum. Glad to hear that my little BeebAsm project was some help to get started on your project. I really enjoyed your talk, thanks for sharing. (Note to self:...
View Article8-bit acorn software: other • Re: Using Treecopy with ROM filing system
This might work:Code: 10 REM > ROMToDisk 20 : 30 src$="ROM" 40 dest$="DISK" 50 IFPAGE<&E00:PRINT"Must run in I/O processor":END 60 max%=HIMEM-LOMEM-400:DIM mem% max%:last$="" 70 REPEAT 80...
View Article8-bit acorn hardware • Re: JamSoftElectronULA: A no-frills Electron ULA...
Great work and write up. I sort of wish I had a faulty ULA I could replace...Statistics: Posted by 4-3is4-me — Sat Jun 08, 2024 10:11 pm
View Articlethe complete BBC games archive • Re: NUTS! (educational game)
I've found that one of the big killers when transcribing tapes is transient fluctuations in tape speed, often caused by sticky tape mechanisms. These speed drops can last mere milliseconds, and are...
View Articlegeneral • Re: Agon light
I think the Sparky eZX BASIC by Richard Kelsh (a 24-bit version of Sinclair BASIC for the eZ80 architecture) could be ported /adapted over Agon MOS.Statistics: Posted by gob33 — Sat Jun 08, 2024 11:16...
View Article32-bit acorn hardware • Re: A4000 floppy issues
I have now checked all the floppy bus connections and pullups, and they're all fine. So I'm thinking it must be the drive at fault, probably the heads.Formatting 1.6MB discs consistently gives the...
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8-bit acorn hardware • Re: Who else is building a Beeb from scratch?
Does the analogue work with two controllers for two player games? The reason I ask is we were playing Micropower's "SWAG" today and with both on the keyboard it felt a bit cramped. I thought it would...
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8-bit acorn software: games - high scores • Re: High Score Challenge...
Tapper is perhaps the only one that springs to mind for me right now.After Uncle Claude featured last season, I was going to suggest Growing Pains, but I don't think anyone would forgive me!Great to...
View Article8-bit acorn hardware • Re: BBC Micro keyboard PCB
I was working on the idea of having the aluminium sheet from the donor keyboard. JLCPCB can fabricate that part too, but the cost is going to be epic for short runs of anything like that. On an...
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8-bit acorn hardware • Re: Standoff internal positions Master Beeb 65c102/512K
here you go, sadly its not pin sharp as my scanned expects things to be flat on the glass, not a few mm above it obviously you're looking at the back, and top in the picture is what is regarded as the...
View Articlesoftware & utilities for the pc, mac or unix • Re: Disc Image Manager
OK - I see it now. I'll see what's going on...may take some time.Statistics: Posted by geraldholdsworth — Tue Jun 11, 2024 10:51 pm
View Article8-bit acorn software: other • A tale of two spigots - more digits of pi, and...
Where we're headed is lots of digits of pi, computed surprisingly rapidly on a BBC Micro, and printed progressively faster digit by digit as the calculation proceeds. That's a so-called spigot. Run...
View Article8-bit acorn software: other • Re: A tale of two spigots - more digits of pi,...
[placeholder]Statistics: Posted by BigEd — Tue Jun 11, 2024 11:17 pm
View Article8-bit acorn software: classic games • Re: Codename: Droid - Bug?
Looks like its a bug Ken... This is on an issue 4 beeb with 1770 based dfs and GotekIMG_5929a.jpgMarcusStatistics: Posted by marcusjambler — Tue Jun 11, 2024 11:28 pm
View Articlegeneral • Re: JLC Component Assembly
Have you asked the obvious question: can you please list which areas where the PCBA service is not provided and which areas the PCBA service is provided?MarkStatistics: Posted by 1024MAK — Tue Jun 11,...
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