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Search Again :: Adv Search 1000 results in 0.008s
<1234567…34>
  • So you need to double (or triple, or quadruple) the clock speed...No particular reason for posting this, other than I was looking at an eZ80 evaluation board that does this, and that jogged my memory of a project I'…

    ... Spectrum's 3.5MHz clock.

    Clock *dividers* are easy, and ... bottom is the 4MHz reference clock.

    [img]http:// ... wave form (make it more square) from the 74LS629 and give ... circuit which is the reference clock. (The two capacitors are ...
    Winston Winston June 2010 Hardware
  • ZX Spectrum clock signals comparedI haven't searched for this on WoS; it might have been posted before. But I think it's important info, and can't do any harm to repeat or show from a…

    ... problems with the ZX Spectrum clock signal.
    With the ... this testing I tried another clock inverter solution from Ingo Truppel ... a triangle signal than a square signal.
    Also the ... />
    This gives a perfect clock signal by default:

    bverstee bverstee September 2013 Hardware
  • 'Square Head' not working in SpinI've been trawling through a bundle of files that were uploaded to WOS and discovered a TZX version of this game: [url="http://www.worldofspectrum.o…

    ... .worldofspectrum.org/infoseek.cgi?regexp=^Square+Head$&pub=^Outland+Corp ... .worldofspectrum.org/infoseek.cgi?regexp=^Square+Head$&pub=^Outland+Corp ...
    Lee Tonks Lee Tonks September 2004 Emulators
  • Anyone here an eBay power seller, or a square trade member?I eBay a fair bit - there is a chance that I might make Power Seller status by December. Minimum ?750 per month turn over, for 3 months I think? Bro…

    ... to become a member of Square Trade - altough they do seem ... /> What are your thoughts on Square Trade? Worth beloging?
    thx1138 thx1138 September 2004 Sinclair Miscellaneous
  • I've successfully created swf clockI was advancing by this tutorial : [url]http://forum.mobiles24.com/showthread.php?t=12361[/url] and I've created a theme with swf clock : [url]htt…

    ... created a theme with swf clock :

    [url]http://www ... title screen there appear digital clock with seconds.
    bohusk bohusk April 2009 Chit chat
  • Atic Atac Delux - 3d Filmation versionI have been playing a hacked version of Pentagram recently that has directional controls implemented, and running around the rooms shooting the ghost…

    ... much every room is a square or a rectangle with a ... of decoration (a picture, a clock, some armour, etc). Because of ...
    WhizzBang WhizzBang May 2009 New game ideas
  • "8 CHANNELS" -ZX Spectrum BEEPER demoHi there. :) We finally managed to finish the BEEPER demo with 8-channels songs. You can get it from here: [url]http://pouet.net/prod.php?which=5…

    ... channel of sound and a square wave only (also - no volumes ... ://8bitcollective.com/music/MISTER+BEEP/Clock+Mechanism/[/url]
    [url]http ...
    Mister Beep Mister Beep November 2009 Sinclair Miscellaneous
  • Former maker of Sinclair add-ons in the U.SIn my continuing efforts to find people from the Timex-Sinclair past I found two gentleman who were, at some point, the owners of Byte- Back. This …

    ...
    was changed from the square box to the extruded aluminum ... -1, and the Real Time clock. Of course with the
    zxbruno zxbruno March 2010 Sinclair Miscellaneous
  • ZX Spectrum Woes...In my endeavours to get my second Spectrum (Issue 3) working I have replaced the CPU, memory and lower ram. I have fitted sockets for the CPU and me…

    ... in thinking that the CPU clock signal provided by the ULA ... is the 14MHz ULA clock signal divided by four? My ... expected if the clock is more or less a square wave. Pin ...
    weathereye weathereye March 2011 Hardware
  • Repairing a faulty 48K issue 2.I am investigating one of a pair of non-working issue 2 48K Spectrums that have been sitting in a cupboard untouched for quite a few years. I haven…

    ... />
    - ~3.5MHz 0-5V clock at pin 6 of the ... /> on.

    - 0-4V square waves at the output and ... ).

    - 0-4V square waves on all data bus ... .

    - 0-4V square waves on A0-A7 at ... a clean 0-3.7V square wave of ~875KHz.
    ...
    Zorn Zorn November 2011 Hardware
  • A 30th Anniversary ProjectHappy new year (belatedly...) So with the 30th anniversary approaching, I've decided to do a hardware project to celebrate it. Something hands-on (o…

    ... controlled oscillator) which makes a square wave which can be used ... biggest that would fit!) The clock for the counters is external ... since the Spectrum's clock output gets halted every time ... used in this design). The clock generator will get epoxied to ...
    Winston Winston January 2012 Hardware
  • Revisiting Spectrum CPU clock regenerationWarning: This post will be a bit nerdy :-) Some time ago, I experimented with phase locked loop circuits as a possible way to regenerate the Spectru…

    ... regenerate the Spectrum's clock signal despite contention. However ... produce the regenerated Spectrum clock, a stable and ... - one counting Spectrum clock cycles since contention started, ... and one counting regenerated clock cycles since contention started ...
    Winston Winston September 2012 Hardware
  • Help me resurrecting a 128KHello to everybody. I'm really struggling along a repair of a standard 128K a friend of mine handed me over some (ok, actually a lot of) time ago. A…

    ... draw is about 780 milliamperes. Clock is spot on and has ... and I can see a square waveform at about 295 KHz ...
    Falco-F8L Falco-F8L October 2012 Hardware
  • Xbox Square Enix Sale (Sleeping Dogs, Deus Ex, Tomb Raider etc.)Annoyingly, Square Enix have just put a massive half-price sale on Xbox Live stuff....here's the list quoted from True Achievements... [quote][b]XBL…

    Annoyingly, Square Enix have just put a ... 'll list the prices that Square Enix has marked down for ... Master Pack - 320 MSP
    • Square Enix Character Pack - 80 MSP ... />
    These discounted items from Square Enix are available to download ...
    deadpan666 deadpan666 March 2013 Chit chat
  • Can anyone think of any Speccy characters that have square heads?Hello! Haven't been on here in a while. I have 9 smallish (10 inch x 10 inch) square canvases, and was drawing out a Spongebob face stencil on a yel…

    ... (10 inch x 10 inch) square canvases, and was drawing out ... an entire spectrum (hah!) of square heads. Colours I have already ...
    The Lone Magpie The Lone Magpie March 2013 Chit chat
  • DivMMC clock bufferI have completed the first DivMMC EnJOY today: [url]http://www.worldofspectrum.org/forums/showthread.php?t=44238[/url] But there is a problem with t…

    ... is a problem with the clock boost circuit.

    Mario ...
    bverstee bverstee July 2013 Hardware
  • Canonical Spectrum pixel aspect ratioHi, Do any emulators support scaling the Spectrum image to have the "correct/canonical" pixel aspect ratio? On a 4:3 display, Spectrum pixels aren'…

    ... Spectrum pixels aren't exactly square. They're slightly wider, with ... to actually appear circular or square.

    [The 59 ... from the de-facto standard square pixel sampling frequency for ... 75MHz. The corresponding Spectrum pixel clock is 14MHz, giving a ...
    mark_k mark_k January 2014 Emulators
  • New game (Conversion): Maniac SquareComing from the Spanish Coin op compo, another game, called Maniac Square was released last week by Tempus. It is a conversion of the original coin o…

    ... compo, another game, called Maniac Square was released last week by ... coin op from GAELCO, Maniac Square.

    Here is the ...
    Ivanzx Ivanzx March 2014 Brand new software
  • ZX Spectrum Clock Signal Restorer Circuit[SIZE=5][U][B]ZX Spectrum Clock Signal Restorer Circuit[/B][/U][/SIZE] The circuit below is an experimental circuit. It has only been "tested" using…

    ... =5][U][B]ZX Spectrum Clock Signal Restorer Circuit[/B][/U ...
    1024MAK 1024MAK June 2014 Hardware
  • My attempt to restore the CPU clock signalI know Winston has already got this, but I can't see any thread with details about it. Only wanted to share my (still early) results. I'm not taking…

    ... reshaping the ugly shaped clock signal available from the ... description of the simple clock restorer. It takes two ... wire mclk, // 28MHz input master clock
    input wire cpuclk_in_n, // ... 3.5MHz, clock stalled sometimes at low level ...
    mcleod_ideafix mcleod_ideafix September 2014 Hardware
  • help with broken +2 greyHello, the other day I was trying to record sounds from my grey +2 "sound" socket to an old cassette recorder. Suddenly the screen went to a solid…

    ... of the z80 shows a clock signal. But it's round ... of square and 5v as I was expecting. I think the clock ...
    saldali saldali June 2016 Hardware
  • Spectrum 48k Clock SpeedSo I was reading the [url="http://www.worldofspectrum.org/pub/sinclair/technical-docs/ZXSpectrum48K_ServiceManual.pdf"]Spectrum 48k Service Manaul[/u…

    ... ? The ULA gets a 14MHz clock but doesn't it divide ...
    msansom msansom February 2017 Hardware
  • Digital Clock in Game of LifeY'know Conways Game of Life? A [url="http://www.worldofspectrum.org/infoseek.cgi?regexp=^Life$&pub=^Sinclair+Research+Ltd$&loadpics=3"]version[/url] …

    ... /questions/88783/build-a-digital-clock-in-conways-game-of-life ... /111932#111932"]digital clock.[/url]

    [img]https ...
    Zoffy Zoffy March 2017 Chit chat
  • Where's my green square? Basic & m/c question.I'm going mad here - can anyone tell me why my little basic program isn't displaying a green square at the top of the screen? I've checked the num…

    ... isn't displaying a green square at the top of the ... work and displays the green square no problem. I've peeked ... should be ...just no green square!

    What am I ...
    Tobo Tobo June 2017 Development
  • uMIA Square Dance by CCSPossibly another uMIA from my Dad's old tapes. Square Dance by CCS. Download snapshot [url="http://tomdalby.com/speccy/squaredance.zip"]here[/url]. I…

    ... my Dad's old tapes. Square Dance by CCS. Download snapshot ...
    TomD TomD February 2019 MIA/STP/SDP
  • Grpahics mode: Key combination for black squareSo I'm trying to type in a game listing to see how it works and I need to type a black square in the listing and have completely forgotten how to use…

    ... need to type a black square in the listing and have ... how to get the black square. Can someone let me know ... key combinations to type the square and then turn my cursor ...
    LevelUp LevelUp August 2019 Sinclair Basic
  • zx spectrum +2 no clock signal ??help me ...... looking at a specie +2 (original +2) it is the Z70700 issue 1 (uk one) i seem to have no clock,no display,no sound at all. it is sho…

    ... ) i seem to have no clock,no display,no sound at ... to the cpu pin 6 (clock) and that pin 13 of ...
    mark8bit mark8bit July 2020 Hardware
  • 48k spectrum pausing the clockI had a spectrum 3b motherboard donated to me with no case. So i have decided to put it in a custom case with built in kempston port etc. I also …

    ... to pause the clock. I have found the clock line as it ... never resumes when throwing the clock back to normal. Anyone know ...
    gazj82 gazj82 September 2020 Hardware
<1234567…34>

Latest Posts

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