Search found 100 matches

by hicks
Wed Mar 31, 2021 10:52 pm
Forum: wanted
Topic: BBC Master / manuals etc
Replies: 6
Views: 444

Re: BBC Master / manuals etc

Thanks for the Beeb Marcus. It arrived earlier today. Only had a quick look over it so far but everything I've checked looks good :D
by hicks
Tue Mar 30, 2021 9:59 pm
Forum: 8-bit acorn hardware
Topic: Advice on fixing a ULA removal
Replies: 11
Views: 473

Re: Advice on fixing a ULA removal

Thanks Ken. That makes sense. The via rivet making a connection with the track was what I was wondering about. I'll give it a shot. I have always found desoldering a challenge even with a hot air desolder. Time to invest in a decent electric desolder pump. Maybe I'll have better luck with that on t...
by hicks
Sat Mar 27, 2021 5:17 pm
Forum: 8-bit acorn hardware
Topic: Electron - data capture analogue / digital
Replies: 11
Views: 463

Re: Electron - data capture analogue / digital

Maybe my opinion is coloured by the fact I used an Elk/BBC as a child, but I would expect as far as appeal goes, a PI would have more appeal than a modern PC and a Elk/BBC could perhaps be more appealing than a PI. Maybe these reasons are a stretch, but for example entering a short program on a mode...
by hicks
Thu Mar 18, 2021 12:11 pm
Forum: wanted
Topic: BBC Master / manuals etc
Replies: 6
Views: 444

Re: BBC Master / manuals etc

Manuals are by no means a requirement, if needed I'll try to find those items via ebay even if it means buying a broken beeb to get the packaging/manuals etc :P When you've had time to test it, let me know the condition, marks/scratches, any modifications/repairs made internally etc and how much you...
by hicks
Wed Mar 17, 2021 11:54 pm
Forum: wanted
Topic: BBC Master / manuals etc
Replies: 6
Views: 444

BBC Master / manuals etc

My Elk is starting to feel a little lonesome on its own and would like a big brother :) So, if anyone in the UK is looking to find a new home for a BBC Master, I'm looking to buy one. Ideally I'm after original contents too such as user manual/pamphlets, original box would be icing on the cake. That...
by hicks
Wed Mar 17, 2021 6:43 pm
Forum: 8-bit acorn hardware
Topic: Electron ULA to RAM timing
Replies: 10
Views: 508

Re: Electron ULA to RAM timing

There's a recent interview with Paul Fellows that touched on the 4bit Elk ram. Whole interview is interesting but here's a link to the ram part: https://youtu.be/FO33IfCU3hg?t=836 He said it was done for a combination of price and memory availability reasons. It's a shame in a way, as that and perha...
by hicks
Wed Nov 04, 2020 9:34 pm
Forum: new bbc and electron games from 'retro software'
Topic: Elementum for Electron and BBC Micro/Master
Replies: 46
Views: 4316

Re: Elementum for Electron and BBC Micro/Master

Marvin wrote:
Mon Nov 02, 2020 12:36 am
Noooooo!

I really don't want to know how many times I've "died", It's got to be in the many hundreds by now... :lol:

And as for adding a harder mode, that's just sadistic :D
If it only shows you at the end of each level, it might not be so demoralising :)
by hicks
Wed Nov 04, 2020 8:52 pm
Forum: for sale / freebies
Topic: Electron SD Interface & SW Ram Expansion
Replies: 58
Views: 8836

Re: Electron SD Interface & SW Ram Expansion

Thanks for the details, I've soldered 1.27mm pitch (DRV8805) but never tried anything smaller, so I'll just have to avoid breaking it :mrgreen: Reading through the manual this bit has me wondering: Do NOT load such games into a sideways ROM bank, as the game may take over the Electron at boot time a...
by hicks
Mon Nov 02, 2020 10:24 pm
Forum: 8-bit acorn software: classic games
Topic: Demystifying Nightworld
Replies: 31
Views: 4543

Re: Demystifying Nightworld

I really want to fully read this thread, but for some reason I kinda enjoy this game and don't want to spoil things at least not until I tire of it :D It's good to know at least it can be completed, I was starting to wonder.
by hicks
Mon Nov 02, 2020 4:50 pm
Forum: 8-bit acorn hardware
Topic: Which BBC model to get?
Replies: 6
Views: 471

Which BBC model to get?

I know for many on here the question is invalid and it should be "Which BBC model to get first?" :lol: however for the purposes of this, I intend to buy one and one model only :^o I have memories of playing around on the BBC both in primary school (possibly the B or B+) with the little log...
by hicks
Mon Nov 02, 2020 12:53 am
Forum: 8-bit acorn hardware
Topic: Elk Audio Mod
Replies: 3
Views: 316

Re: Elk Audio Mod

For extra credit if anyone fancies attempting this. I expect you could get a 3.5mm socket that lets you break a connection when a plug is inserted. Switching between the internal speaker to be used or headphone/TV automatically. I might look into that another day. Yup did that 30+ years ago, I used...
by hicks
Mon Nov 02, 2020 12:05 am
Forum: new bbc and electron games from 'retro software'
Topic: Elementum for Electron and BBC Micro/Master
Replies: 46
Views: 4316

Re: Elementum for Electron and BBC Micro/Master

This looks great, will give it a go on the Elk. You mention adding finite lives mode, have you also considered a running deaths counter. That way even when you don't complete the game you can feel a sense of achievement for getting to level X with only 176 deaths this time :) vvvvv (on steam) has a ...
by hicks
Sun Nov 01, 2020 5:57 pm
Forum: 8-bit acorn hardware
Topic: Elk Audio Mod
Replies: 3
Views: 316

Elk Audio Mod

I know using the speaker header and a modified scart cable to get audio to a TV is a path well trodden, however, I wasn't keen on the idea of de-soldering the RF box or clipping the wires to use the RF connector for audio out. I want to keep everything working regardless of whether I'll actually use...
by hicks
Sun Nov 01, 2020 11:14 am
Forum: 8-bit acorn hardware
Topic: Electron ULA Basic Board
Replies: 97
Views: 7586

Re: Electron ULA Basic Board

Based on this, the issue must be within the video part of the ULA. So I'm reworking the video counters based on Hick's work to understand the original ULA schematics that we got from Harry Barman, one of the developers: https://stardot.org.uk/forums/viewtopic.php?f=3&t=13818&p=190426#p18144...
by hicks
Sat Oct 31, 2020 10:11 pm
Forum: for sale / freebies
Topic: Electron SD Interface & SW Ram Expansion
Replies: 58
Views: 8836

Re: Electron SD Interface & SW Ram Expansion

Oops! :D If it's any consolation, sales on EBay are what funds development of new designs. So you've helped make sure I'll be able to keep releasing new stuff for the Electron in future. I just did the same #-o was about to cancel and order via you here until reading the above and realising it's yo...
by hicks
Tue Jun 11, 2019 12:32 am
Forum: 8-bit acorn hardware
Topic: Plus1 Joystick ADC Noise?
Replies: 2
Views: 562

Plus1 Joystick ADC Noise?

I don't own a Plus1 for my Electron, but I'm curious if someone who does could output the values the ADC returns for a Joystick that's at Min X, centred and Max X. I'm curious as to whether the ADC will return exactly 0 and 255 at the limits, or if there's some noise likely. If so how much does it s...
by hicks
Sun Jul 15, 2018 12:42 am
Forum: 8-bit acorn software: other
Topic: Electron Demos
Replies: 7
Views: 1229

Re: Electron Demos

I saved the files to UEF for you using BeebEm. The Bones demo doesn't sound quite right in ElectrEm. Here's how it should sound: http://bbcmicro.co.uk/jsbeeb/play.php?patch=@bc09,3e0:43482E222B2E424F4E4553220d;@bc09,2d8:e0;@bc09,2e1:ed;&disc=http://bbcmicro.co.uk//gameimg/discs/1411/Animation.d...
by hicks
Sat Jul 14, 2018 8:54 pm
Forum: 8-bit acorn software: other
Topic: Electron Demos
Replies: 7
Views: 1229

Re: Electron Demos

I don't have any way to load disks :( Are there any PC based utils to convert that to a tape uef?
by hicks
Sat Jul 14, 2018 8:04 pm
Forum: 8-bit acorn software: other
Topic: Electron Demos
Replies: 7
Views: 1229

Electron Demos

After making a passing remark earlier about doubting there's any Electron Demos (as in demo scene), a quick google appears to prove that doubt was misplaced :roll: Now I'm curious if there were more than just a couple of demos? There's quite a few for the BBC, but I only found a couple of demos on y...
by hicks
Thu Jul 12, 2018 4:18 pm
Forum: 8-bit acorn hardware
Topic: Proposed: "The Ultimate Electron Upgrade"
Replies: 565
Views: 68929

Re: Proposed: "The Ultimate Electron Upgrade"

I'll be working with DaveB's current design. I'll add test points where ever he needs them! Dave H :D I guess since it's using a pin socket it'll be easy enough to gain access to all the ULA pins anyway for scoping out issues, unlike with the original socketed ULA. A kind forum member sent me an is...
by hicks
Wed Jul 11, 2018 4:34 pm
Forum: 8-bit acorn hardware
Topic: Proposed: "The Ultimate Electron Upgrade"
Replies: 565
Views: 68929

Re: Proposed: "The Ultimate Electron Upgrade"

I could send you the DXF of the 'spreader' interface PCB, if that would help? Couldn't harm to look :) Current design replaces the ULA socket with standard turned-pin sockets. Do you have a link to the socket you're using for that? Whilst I think on, are you planning to add test points for each ULA...
by hicks
Tue Jul 03, 2018 6:42 pm
Forum: 8-bit acorn hardware
Topic: Proposed: "The Ultimate Electron Upgrade"
Replies: 565
Views: 68929

Re: Proposed: "The Ultimate Electron Upgrade"

I'm interested in one (price allowing). I assume you'll include a JTag header to program/update? I'd be interested in making a version of my ULA for it. That was one of the plans I had before I started the FPGA core but building the HW for it and fitting the socket was a bit of a sticking point that...
by hicks
Mon Jul 02, 2018 11:33 pm
Forum: general
Topic: BBC releases computer history archive
Replies: 127
Views: 12456

Re: BBC releases computer history archive

Ahh, but most computers in the 1970s, 1980s and 1990s don't actually produce a proper interlaced output. Instead they just produce a single field, then repeat the same field (and if doing animation, with different picture information). So on a large-ish screen CRT, you can see faint horizontal line...
by hicks
Sun Jul 01, 2018 10:58 pm
Forum: 8-bit acorn hardware
Topic: Proposed: "The Ultimate Electron Upgrade"
Replies: 565
Views: 68929

Re: Proposed: "The Ultimate Electron Upgrade"

One of the big problems, for some potential users, is the removal of the ULA socket without damaging any of the tracks. I had planned to build a good sized batch of maybe 50 and offer a fitting service for those that can't. I'd be very wary of anyone having-a-go and then blaming the problem on the ...
by hicks
Sun Jul 01, 2018 10:43 pm
Forum: 8-bit acorn hardware
Topic: Proposed: "The Ultimate Electron Upgrade"
Replies: 565
Views: 68929

Re: Proposed: "The Ultimate Electron Upgrade"

As a slight aside from the ULA upgrade, on the previous page of this thread I was asking about a test program hoglet had written that showed interrupts firing and how my core appeared to differ in the first couple of values and if run without a soft reset I had A0 rather than B0 showing. I'd forgott...
by hicks
Sun Jul 01, 2018 10:34 pm
Forum: 8-bit acorn hardware
Topic: Electron ULA Schematics
Replies: 45
Views: 7700

Re: Electron ULA Schematics

There's just one part of the cassette schematic that I'm not quite sure about. CASSRST interplay with DATACNT. I'm hazarding a guess that this may be what causes a 0 to end up in CDATA after loading finishes. As noted in previous post, a 0 present in CDATA can act as both a start and stop bit, even ...
by hicks
Sun Jul 01, 2018 2:03 pm
Forum: 8-bit acorn hardware
Topic: Proposed: "The Ultimate Electron Upgrade"
Replies: 565
Views: 68929

Re: Proposed: "The Ultimate Electron Upgrade"

What kind of market do you think there is for a replacement and/or "enhanced" ULA for the Elk ? I mean I'd like one too, but when I consider the time/cost involved in converting my fpga ULA code over to work as a drop in replacement, it's hard to justify doing it when there's so many other...
by hicks
Thu Jun 28, 2018 1:03 pm
Forum: general
Topic: BBC releases computer history archive
Replies: 127
Views: 12456

Re: BBC releases computer history archive

What were you hoping to achieve? Nothing in particular, but it'd be nice to be able to legally distribute the ROMs for the Electron/BBC both in terms of FPGA cores and for emulators. Also, never know what comments in source might reveal that can be missed when reviewing disassembled versions. Plain...
by hicks
Thu Jun 28, 2018 9:32 am
Forum: general
Topic: BBC releases computer history archive
Replies: 127
Views: 12456

Re: BBC releases computer history archive

I should have known I wouldn't need to mention it here and that you'd all already know :D Lots to watch, this is great. I wonder if the BBC could be persuaded in the name of preserving history, to spend some resources tracking down the current rights holder of the BBC's OS and open it all up. I assu...
by hicks
Thu Jun 28, 2018 12:24 am
Forum: 8-bit acorn hardware
Topic: Electron ULA Schematics
Replies: 45
Views: 7700

Re: Electron ULA Schematics

The findings of this thread left me wondering how the cassette logic was handling the stop bit, especially why 1/2 a stop bit worked. I had time to look over the cassette logic again this evening whilst working on a turbo mode for my fpga. I think I understand more of why the 1/2 stop bit works. If ...

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