Search found 152 matches

by -B-
Mon Feb 24, 2020 1:32 pm
Forum: acorn atom and system
Topic: Atom and FPGA based retro-computers
Replies: 35
Views: 5333

Re: Atom and FPGA based retro-computers

hoglet wrote:
Mon Feb 24, 2020 9:55 am
Is there any more information available on this core?
There is this link...
https://gitlab.com/victor.trucco/zx-spectrum-next-cores
It says that they are cores based on ports for ZX-Uno and have come from different sources, copyright has been kept on each file.
by -B-
Mon Feb 24, 2020 9:40 am
Forum: acorn atom and system
Topic: Atom and FPGA based retro-computers
Replies: 35
Views: 5333

Re: Atom and FPGA based retro-computers

The ZX Spectrum Next has an Atom Core too (photo stolen from Facebook)....

87325772_2830265557040249_3209105185959837696_o.jpg
by -B-
Fri Feb 21, 2020 1:29 pm
Forum: upcoming and recent events & exhibitions
Topic: Big Ben Club annual club day 16 May 2020
Replies: 27
Views: 912

Re: Big Ben Club annual club day 16 May 2020

Multiwizard wrote:
Tue Jan 28, 2020 7:10 am
perhaps -B- (Neil) likes to visit this event?

He lives pretty "close" to that address.
Indeed. Only an hour away depending on traffic.

I could bring my Atom and maybe my Elk.

Neil.
by -B-
Fri Feb 21, 2020 1:24 pm
Forum: upcoming and recent events & exhibitions
Topic: Computerclub Limburg kick-off meeting March 22
Replies: 3
Views: 175

Re: Computerclub Limburg kick-off meeting March 22

Sounds good. I wonder if my old car will make it that far south.

Neil.
by -B-
Sat Dec 14, 2019 2:34 pm
Forum: hardware
Topic: RGB to HDMI using a Pi Zero and a small CPLD
Replies: 855
Views: 51444

Re: RGB to HDMI using a Pi Zero and a small CPLD

Excellent stuff!
by -B-
Mon Dec 02, 2019 6:24 pm
Forum: acorn atom and system
Topic: Atom Video to HDMI Adapter
Replies: 236
Views: 12233

Re: Atom Video to HDMI Adapter

Excellent work =D> again!
by -B-
Fri Nov 29, 2019 11:35 pm
Forum: hardware
Topic: RGB to HDMI using a Pi Zero and a small CPLD
Replies: 855
Views: 51444

Re: RGB to HDMI using a Pi Zero and a small CPLD

IanB wrote:
Fri Nov 29, 2019 11:12 pm
Do you know what pixel clock frequency the QL uses? (It seems to be 10Mhz from online info)
Also how many clock cycles are there in a video line? (This should be around 640 but may vary 1 or 2 either way)
This might help...
ZX8301.pdf
(376.68 KiB) Downloaded 19 times

Neil.
by -B-
Fri Nov 29, 2019 7:10 pm
Forum: hardware
Topic: RGB to HDMI using a Pi Zero and a small CPLD
Replies: 855
Views: 51444

Re: RGB to HDMI using a Pi Zero and a small CPLD

I have a couple but I’m not in the UK.
I will be for Christmas though, so if you’d like me to lend you one....

Neil.
by -B-
Fri Nov 29, 2019 11:47 am
Forum: hardware
Topic: RGB to HDMI using a Pi Zero and a small CPLD
Replies: 855
Views: 51444

Re: RGB to HDMI using a Pi Zero and a small CPLD

Have you tried the QL yet, with its famous overscan in monitor mode?
by -B-
Wed Nov 27, 2019 5:09 pm
Forum: hardware
Topic: RGB to HDMI using a Pi Zero and a small CPLD
Replies: 855
Views: 51444

Re: RGB to HDMI using a Pi Zero and a small CPLD

Excellent work =D>
by -B-
Wed Nov 20, 2019 12:12 am
Forum: hardware
Topic: RGB to HDMI using a Pi Zero and a small CPLD
Replies: 855
Views: 51444

Re: RGB to HDMI using a Pi Zero and a small CPLD

Amazing!!! =D>
by -B-
Mon Nov 11, 2019 9:44 am
Forum: hardware
Topic: RGB to HDMI using a Pi Zero and a small CPLD
Replies: 855
Views: 51444

Re: RGB to HDMI using a Pi Zero and a small CPLD

That's very neat, I assume it works OK? (I was concerned that the extra heat inside the PI case might make the threshold adjustments a bit unstable.) It's not actually finished, I got to the stage where I needed to programme the CPLD but my Xilinx platform is not recognised by my laptop. I will hav...
by -B-
Thu Nov 07, 2019 8:14 am
Forum: hardware
Topic: RGB to HDMI using a Pi Zero and a small CPLD
Replies: 855
Views: 51444

Re: RGB to HDMI using a Pi Zero and a small CPLD

Ah, you beat me to it. I am using your ZX81 circuit with the old version of the board...

C68870FE-F204-4B94-BD40-EFF99C47AB52.jpeg
Neil.
by -B-
Wed Nov 06, 2019 6:48 pm
Forum: hardware
Topic: RGB to HDMI using a Pi Zero and a small CPLD
Replies: 855
Views: 51444

Re: RGB to HDMI using a Pi Zero and a small CPLD

Excellent! I like the look of that. Especially since my Xilinx programmer doesn’t work any more.
by -B-
Fri Oct 18, 2019 9:46 pm
Forum: hardware
Topic: RGB to HDMI using a Pi Zero and a small CPLD
Replies: 855
Views: 51444

Re: RGB to HDMI using a Pi Zero and a small CPLD

Nice work =D>
by -B-
Tue Oct 08, 2019 7:27 am
Forum: hardware
Topic: Proposed: "The Ultimate Electron Upgrade"
Replies: 529
Views: 40314

Re: Proposed: "The Ultimate Electron Upgrade"

I'm also interested, I have a bog standard Elk waiting.

Neil
by -B-
Fri Sep 27, 2019 9:03 am
Forum: acorn atom and system
Topic: Atom Video to HDMI Adapter
Replies: 236
Views: 12233

Re: Atom Video to HDMI Adapter

I use a Philips screwdriver for the 3mm holes and one of these for the 4mm and deburring. By hand, not with a drill.

89ACABCB-1898-4141-BD02-7599530C2C94.jpeg
by -B-
Thu Sep 26, 2019 8:52 pm
Forum: acorn atom and system
Topic: Atom Video to HDMI Adapter
Replies: 236
Views: 12233

Re: Atom Video to HDMI Adapter

Here’s some quick measurements of my box.

7364B32C-1F71-4AAD-97BD-9D24CC30A46F.jpeg
D36183E0-329D-4BB4-819A-0E1E04C73CA5.jpeg
by -B-
Thu Sep 26, 2019 8:02 am
Forum: acorn atom and system
Topic: Atom Video to HDMI Adapter
Replies: 236
Views: 12233

Re: Atom Video to HDMI Adapter

.... or someone could measure their box when they get home from work tonight and post the results here?
(I am volunteering).

Neil.
by -B-
Wed Sep 25, 2019 3:08 pm
Forum: acorn atom and system
Topic: A slightly dog-eared Atom
Replies: 30
Views: 1412

Re: A slightly dog-eared Atom

Good work fella!
by -B-
Fri Sep 06, 2019 8:58 pm
Forum: acorn atom and system
Topic: AtomSID
Replies: 36
Views: 3286

Re: AtomSID

Nice work fella
by -B-
Thu Sep 05, 2019 10:37 am
Forum: introduce yourself
Topic: 10 PRINT "Hello Stardot"
Replies: 17
Views: 726

Re: 10 PRINT "Hello Stardot"

Well hello, fancy seeing you here!
by -B-
Fri Aug 16, 2019 2:03 pm
Forum: software: new games
Topic: Electron AGD
Replies: 7
Views: 979

Re: Electron AGD

Excellent news. I look forward to some AGD releases for the Elk.

Neil.
by -B-
Wed Aug 14, 2019 7:03 pm
Forum: acorn atom and system
Topic: AtomSID
Replies: 36
Views: 3286

Re: AtomSID

oss003 wrote:
Wed Aug 14, 2019 6:47 pm
This Rob Hubbard SID file is the ultimate SID tune ...... download/file.php?id=8067
That is amazing. I wish I had used that on my video!
by -B-
Wed Aug 14, 2019 5:44 pm
Forum: acorn atom and system
Topic: AtomSID
Replies: 36
Views: 3286

Re: AtomSID

I finally got around to finishing the AtomSID board that Kees gave me at the Dutch Atomic Techsat in June. I have modified it slightly. I am usung a SwinSID so it runs off 5v making the step-up voltage area of the board redundant, so I cut it off, removed some tracks, made some links, moved some com...
by -B-
Fri Aug 09, 2019 9:04 pm
Forum: acorn atom and system
Topic: Disc Pack and Micro Gotek problems
Replies: 5
Views: 500

Re: Disc Pack and Micro Gotek problems

Thanks but I already checked the wiring of the encoder and the switch is working. So I’m thinking it’s either the card setup or actually something wrong with the micro Gotek itself. I was surprised when it turned up in a Jiffy bag. I could try it on a different system and try and rule out the card o...
by -B-
Fri Aug 09, 2019 11:43 am
Forum: acorn atom and system
Topic: Disc Pack and Micro Gotek problems
Replies: 5
Views: 500

Re: Disc Pack and Micro Gotek problems

The little PCB that the encoder sits on is simply for linking the encoder's pins to a 4 pin header. If that helps.
by -B-
Fri Aug 09, 2019 11:29 am
Forum: acorn atom and system
Topic: Disc Pack and Micro Gotek problems
Replies: 5
Views: 500

Disc Pack and Micro Gotek problems

Hi All, I have bought a Micro Gotek by Zaxon from SellMyRetro: https://www.sellmyretro.com/offer/details/micro-gotek-32413 I have dropped a few of Kees' .dsk files on it from the AGD packs for testing but I am not having much luck with it. The connection and jumper details are here http://www.eightb...
by -B-
Fri Aug 02, 2019 11:00 am
Forum: introduce yourself
Topic: Hello Acorn fans!
Replies: 14
Views: 677

Re: Hello Acorn fans!

Welcome! This is a fantastic forum for info and help.

Your story of abandoning modern gaming and collecting classic 8-bit systems will sound familiar to many here. Although some, like me, may not have tried modern gaming at all. I'm more into the hardware side of things anyway.
by -B-
Wed Jul 03, 2019 11:07 pm
Forum: acorn atom and system
Topic: AtomSID
Replies: 36
Views: 3286

Re: AtomSID

anightin wrote:
Mon Jul 01, 2019 4:20 pm
@Neil did you manage to source a board?
I received one of Kees’ PCBs while at the Dutch Atomic Techsat a few weeks ago.
I’ve almost finished it but I’m on holiday at the moment so everything is on hold and no retro computing of any kind is getting done.

Neil