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<1234567…34>
  • Expansion bus questionsHi, two questions about expansion bus, sorry if they have been replied before, I tried to find replies but all my keywords lead to tons of threads O…

    ... ,

    two questions about expansion bus, sorry if they have been ... /> 1) Is there any zx bus splitter hardware design avaliable? Any ... that plugs into the zx bus, and provides several connectors (same ...
    Uto Uto April 2011 Hardware
  • Z80 Expander Bus ControllHello there my fellow forum chummies, I would like to ask a few technical questions, Now I come from an Amiga Hardware based background, and as yo…

    ... any other signals on the Expansion port (for Zx Spectrum+ ... links to some decent Z80 expansion port schematics?

    ... [list]
    [*]How is this bus regulated?
    say I have ... this interfere with the Z80 expansion Bus
    [/list]

    ...
    Zetr0 Zetr0 June 2009 Hardware
  • Wanted - Currah MicroSlot or equivalent two-way expansion portHas anyone got a spare Currah ?Slot they can sell me? Or equivalent 2-way expansion bus connector? I gather the Czech guy who makes DivIDE kits and…

    Has anyone got a spare Currah ?Slot they can sell me? Or equivalent 2-way expansion bus connector? I gather the Czech guy who makes DivIDE kits and boards makes some, but anyone in the UK or with the old cased ones?
    joefish joefish January 2011 Wanted
  • RGB or Composite out of a Spectrum Plus?Anyone know of a way? I dont mind soldering ect. I also heard that their was composite on the expansion bus(Anyone confirm?) Anyone know of a way?

    Anyone know of a way?

    I dont mind soldering ect. I also heard that their was composite on the expansion bus(Anyone confirm?)

    Anyone know of a way?
    Keith Coles Keith Coles March 2001 Sinclair Miscellaneous
  • Printers for Spectrum +2 and +3It seems that the only printers availables for ZX Spectrum were ZX printers and compatibles (connected through the expansion bus), but Spectrum +2 an…

    ... and compatibles (connected through the expansion bus), but Spectrum +2 and +3 ...
    Zup Zup April 2007 Hardware
  • A great ideaMost of us are a bit short on cash whenever we want to buy a new toy for our speccy. Sometimes can't even find what we are looking for. Now what id s…

    ... PC to use the entire expansion bus on the speccy. Sort of ... the CPU and the PCI bus. Then, on the PC you ...
    kofol kofol April 2007 Hardware
  • I want to build a new, super spectrum ;-)only kidding Andrew :-) my brain's going at a mile a minute at the moment, so I thought I should put some of the ideas down in case one of them is w…

    ... final question is regarding the expansion bus, as this along with dodgy ... the problem, and could the expansion bus be successfully opto isolated without ... not, how else could the expansion bus be buffered to prevent edge ...
    guesser guesser September 2007 Hardware
  • Is there any video input on expansion bus?Imagine you want to build a custom display hardware, for instance, to add hardware sprites to display. Is it possible to design such a device so that…

    Imagine you want to build a custom display hardware, for instance, to add hardware sprites to display. Is it possible to design such a device so that the video signal can go into Spectrum, ULA and then to standard RF socket?
    maiki maiki March 2010 Hardware
  • RFC: ZXI hardware interface standardisationReposted from c.s.s to reach a wider audience [QUOTE=Andrew Owen] You may have noticed that there are more people making add-ons for the Speccy than…

    ... put three devices on the expansion bus and have them all function ...
    guesser guesser June 2010 Hardware
  • A new ZX spectrum cloneOver the past 12 months i have been developing a new spectrum clone as a hobby project to waste my spare time on. It is still not fully complete yet …

    ... 48K display timings
    Floating bus and contention emulation model (not ... (compatible with digital TVs)
    Expansion bus connector


    I ...
    mspec mspec August 2012 Hardware
  • maximum addressable RAM for a Z80 using bank switching?What is the maximum addressable RAM for a Z80 using bank switching? The Enterprise64 home computer could address up to 4MB, is this the limit for a …

    ... of the 22-bit address bus, while the lowest 14 bits ... directly from the Z80 address bus.[2] Effectively, the 64 kB ... memory modules connected to the expansion bus.
    Rebelstar Rebelstar February 2013 Hardware
  • ZX Spectrum and Interface 1 microdrive connectorsI think the following is correct: IF1 microdrive connectors are 8pin (slot 3 notched) 2.54mm pitch and Speccy Expansion Bus is 28 pin (position …

    ... />
    and

    Speccy Expansion Bus is 28 pin (position 5 ...
    opless opless March 2013 Hardware
  • SPECTRA - RGB SCART Interface for 48K SpectrumSince the launch of the SPECTRA interface back in June 2012, some discussion of it has appeared in the forums in the past (mainly [URL="http://www.wo…

    ... SPECTRA interface plugs into the expansion port of the Spectrum and ... those signals available on the expansion bus. This allows the Spectrum to ... rear, full width gold plated expansion bus.
    [*] A set of configuration ...
    Fruitcake Fruitcake April 2013 Hardware
  • Downloading code to physical hardwareHi folks, Back in the day, my devkit was a TRS-80 and I had a simple connector device from the TRS-80 parallel (printer) port to the expansion bus o…

    ... parallel (printer) port to the expansion bus of the ZX-Spectrum.
    David Jones David Jones December 2013 Development
  • ZX Spectrum +2A and +2B - finding the true factsI'm confused. Some told me that a +2A has a +3 board, and the +2B got the simplified board. But I think that is not true. I have had over a dozen b…

    ... you would have needed an expansion bus interface with a floppy controller ...
    bverstee bverstee December 2013 Hardware
  • 48K Issue 6A board only showing B/WI have a 48K Issue 6A board here, which only shows a B/W composite video signal on both, the modified RF-out, but also on the expansion bus (using my…

    ... -out, but also on the expansion bus (using my K-mouse turbo ...
    schombi schombi November 2014 Hardware
  • Some questions about the Timex TC2048/TC2068I have been doing some research about the specs of these 2 machines but I suppose it would be better to ask for advice in the forum since I have neve…

    ... RGB signals on the espansion bus?
    The RGB signals are ... the TC2048?

    The expansion bus is similiar to the Spectrum ...
    Renegade Renegade September 2017 Hardware
  • Programing ROM CART from PCHave anybody tried to make a piece of hardware that would be able to program (burn) SINCLAIR cartridge from PC? In the sense, you take TAP or TZX and…

    ... without some changes on the expansion bus, can exchange only 16 K ...
    LCD LCD April 2003 Sinclair Miscellaneous
  • Programing ROM CART from PCHave anybody tried to make a piece of hardware that would be able to program (burn) SINCLAIR cartridge from PC? In the sense, you take TAP or TZX and…

    ... without some changes on the expansion bus, can exchange only 16 K ...
    Alcoholics Anonymous Alcoholics Anonymous April 2003 Sinclair Miscellaneous
  • Whats wrong with my 128k?The little power converter (the thing with three legs) that sits on the cooling fin was broken, so I bought a new power converter and replaced it. Bu…

    ... someone check the voltages on expansion bus, especialy the +5 Volt connection ...
    LCD LCD November 2003 Sinclair Miscellaneous
  • Whats wrong with my 128k?The little power converter (the thing with three legs) that sits on the cooling fin was broken, so I bought a new power converter and replaced it. Bu…

    ... out the voltages from the expansion bus to see if they match ...
    cs060mk2 cs060mk2 November 2003 Sinclair Miscellaneous
  • ZX in FPGA...Hmm..seems nobody is interested in a replacement PCB with FPGA...well..heading towards next FPGA projects then...C64 and others (o; [ This Messag…

    What about the expansion bus? Is the good old Z80 bus edge interface on the pipeline, or something more of the style of Sami Vehmaa's ZXBUS?([url]http://user.tninet.se/~vjz762w/[/url] )

    /Pedro
    pmsr pmsr July 2004 Sinclair Miscellaneous
  • Want a Speccy Repaired?Maybe it's time to put my 'skills' to use.... Now that I've sourced some of the nastier transistors, I've fixed about 6 rubber keyed Speccys in the …

    ... external keyboards which use the expansion bus? It's quite possible you ...
    Spirantho Spirantho September 2005 Sinclair Miscellaneous
  • Want a Speccy Repaired?Maybe it's time to put my 'skills' to use.... Now that I've sourced some of the nastier transistors, I've fixed about 6 rubber keyed Speccys in the …

    ... external keyboards which use the expansion bus? It's quite possible you ...
    miskox miskox September 2005 Sinclair Miscellaneous
  • Externally emulating hardwareThere's been several threads onlong the lines of "can somebody add emulated hardware X to emulator Y"? What would be useful is if emulator writers c…

    ... would be to emulate the expansion bus. Any additional hardware would send ... its signals to this emulated bus. Should work for all real ... the emulator to scan the bus every cycle though.
    [/quote ...
    piters piters November 2005 Development
  • Externally emulating hardwareThere's been several threads onlong the lines of "can somebody add emulated hardware X to emulator Y"? What would be useful is if emulator writers c…

    ... would be to emulate the expansion bus. Any additional hardware would send ... its signals to this emulated bus. Should work for all real ... the emulator to scan the bus every cycle though.
    [/quote ... all coming into the same bus at the same time would ...
    ADJB ADJB November 2005 Development
  • Externally emulating hardwareThere's been several threads onlong the lines of "can somebody add emulated hardware X to emulator Y"? What would be useful is if emulator writers c…

    ... emulator could actually emulate the expansion bus on hw attached to a ...
    Alcoholics Anonymous Alcoholics Anonymous November 2005 Development
  • Spectum expansion port cable extenderI've got a wobbly +D (oo-er) which keeps causing my rubber friend to reset. I'm sure someone must sell cable extenders for the expansion port to com…

    ... directly onto a grey +2 expansion bus.

    If you use ...
    DEATH DEATH May 2006 Sinclair Miscellaneous
  • Multiface QuestionsI have a Multifdace 128 connected to my Spectrum 128. I noticed the options bar come up without me pressing the red button while I was playing a game…

    ... have different connections on the expansion bus.

    Anyway, I used ...
    ewgf ewgf September 2006 Sinclair Miscellaneous
<1234567…34>

Latest Posts

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