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<1234567…34>
  • divIDE interface not workingA while ago I bought a divIDE interface for my two spectrums (one is a 48k rubber keyboard one, the other is a 48k Spectrum plus). Sadly I never actu…

    ... while ago I bought a divIDE interface for my two spectrums ... br />
    This is the divIDE interface that I bought: http ... apparently spectrums with NEC ROMs have issues with the divIDE. Both of ... my Spectrums sadly have a NEC ROM. So ...
    r00li r00li June 2018 Hardware
  • ZX mask ROM chips curiosityJust out of curiosity... what willl happen if we have a Hitachi ROM and the bridging onboard is on the N positions (for NEC)? While I was searching …

    ... we have a Hitachi ROM and the bridging onboard ... on the N positions (for NEC)?

    While I ... issue that was set for NEC rom but the chip (socketed) ... fine, and passes the ROM test on the Sinclair testing ... of the factory, no rom has been replaced and no ...
    gtsamour gtsamour February 2013 Hardware
  • DIVIDE PLUS - new memory mode DIVIDE128Divide PLUS contain 512kB sram + 512kB flash eprom. Memory paging in this device is enable on two different ports : 1) port #E3 is compatible with o…

    ... /> Existing systems for original DIVIDE can be modified for this ... ROM = after power-off return to your main system flashed in DIVIDE ... PLUS rom.

    ... new divide systems = possibility switch between two 8kB rom images ...
    velesoft velesoft June 2013 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…

    ... ZX Spectrum 48K with unmodified NEC rom: OK (DivIDE with ESXDOS fails with ... ZX Spectrum 48K with other rom: OK
    - 3x ZX Spectrum ...
    bverstee bverstee September 2013 Hardware
  • Fully refurbished ZX Spectrum 48K boards incl. ULA- Including ULA (version that [URL="http://www.bytedelight.com/?p=41"]corresponds to the board issue[/URL] - click to find out more about ULA version…

    ... cartridge
    - Tested with DivIDE (performed NEC ROM fix if needed)
    - Tested ...
    bverstee bverstee February 2015 Sales
  • Another cause for DivIDE problems on 48K'sThe last months some topics were opened to discuss problems with 48K ZX Spectrums and DivIDE. Sofar we found: - Bad Z80's because of poor fanout (si…

    ... DivIDE, and others didn't.
    So I'm sure the rom ... ZX Spectrum 16/48K and DivIDE 57c.

    This time ... a bit more concrete: all NEC roms failes, the Sinclair ones ... , people who have a NEC rom and problems with DivIDE, can try the ...
    bverstee bverstee December 2012 Hardware
  • Another cause for DivIDE problems on 48K'sThe last months some topics were opened to discuss problems with 48K ZX Spectrums and DivIDE. Sofar we found: - Bad Z80's because of poor fanout (si…

    ... as replacement for the rom. Simply added an Or ... complex solution for original rom, to feed the right ... (pin 22) of the NEC rom, using two NOR gates: ... now that the NEC rom is causing DivIDE incompatibility, and how ... of the rom (that is /CS on the NEC rom) is ...
    bverstee bverstee December 2012 Hardware
  • Another cause for DivIDE problems on 48K'sThe last months some topics were opened to discuss problems with 48K ZX Spectrums and DivIDE. Sofar we found: - Bad Z80's because of poor fanout (si…

    ... a resistor, and the DivIDE conquers the NEC rom 8)

    [IMG ... junction to /OE of the rom; pin 22.

    Of ...
    bverstee bverstee December 2012 Hardware
  • Another cause for DivIDE problems on 48K'sThe last months some topics were opened to discuss problems with 48K ZX Spectrums and DivIDE. Sofar we found: - Bad Z80's because of poor fanout (si…

    ... the input buffer (inside the ROM chip) as '0'. This isn ... can be done on the DivIDE itself.
    I will check ... the strategy how to solve DivIDE incompatibility, the first thing must ... NEC rom inside the Spectrum and BC337's are used on the DivIDE ...
    bverstee bverstee December 2012 Hardware
  • Another cause for DivIDE problems on 48K'sThe last months some topics were opened to discuss problems with 48K ZX Spectrums and DivIDE. Sofar we found: - Bad Z80's because of poor fanout (si…

    ... a resistor, and the DivIDE conquers the NEC rom 8)

    /RD ... junction to /OE of the rom; pin 22.

    Of ...
    Johan1973 Johan1973 December 2012 Hardware
  • Another cause for DivIDE problems on 48K'sThe last months some topics were opened to discuss problems with 48K ZX Spectrums and DivIDE. Sofar we found: - Bad Z80's because of poor fanout (si…

    ... the 2N7000 with several DivIDE interfaces and a NEC rom inside the Spectrum ... .

    The ZX Spectrum with DivIDE ...
    bverstee bverstee January 2013 Hardware
  • Another cause for DivIDE problems on 48K'sThe last months some topics were opened to discuss problems with 48K ZX Spectrums and DivIDE. Sofar we found: - Bad Z80's because of poor fanout (si…

    ... 've tested my 5.7c divide on more that 20 machines ... /> I encounter problems on every NEC rom inside the ZX Spectrum.
    bverstee bverstee January 2013 Hardware
  • Another cause for DivIDE problems on 48K'sThe last months some topics were opened to discuss problems with 48K ZX Spectrums and DivIDE. Sofar we found: - Bad Z80's because of poor fanout (si…

    So only divIDE is not working on these NEC ROM machines ?
    Spectranet/Interface 1 work ok ?
    I will check on my NEC ROM ZXes, but I have only divIDE that uses M1.
    kpuchatek kpuchatek January 2013 Hardware
  • Another cause for DivIDE problems on 48K'sThe last months some topics were opened to discuss problems with 48K ZX Spectrums and DivIDE. Sofar we found: - Bad Z80's because of poor fanout (si…

    ... ;675966]So only divIDE is not working on these NEC ROM machines ?
    NEC ROM ZXes, but I have only divIDE that uses ... M1.[/QUOTE]

    DivIDE 57c (with FATware, maybe ESXDOS ... every 48K ZX Spectrum with NEC rom.
    bverstee bverstee January 2013 Hardware
  • Another cause for DivIDE problems on 48K'sThe last months some topics were opened to discuss problems with 48K ZX Spectrums and DivIDE. Sofar we found: - Bad Z80's because of poor fanout (si…

    ... test a DivIDE on some of my NEC-equipped computers ... DivIDE 57c with FATware on a ZX Spectrum with NEC rom does ... is that probably the NEC rom enters a power saving ... out from. The Hitachi rom does not have this ... output enable from the NEC rom to ground, so it ...
    bverstee bverstee January 2013 Hardware
  • Another cause for DivIDE problems on 48K'sThe last months some topics were opened to discuss problems with 48K ZX Spectrums and DivIDE. Sofar we found: - Bad Z80's because of poor fanout (si…

    Checked it: the test board I'm currently using has the wires set to 'N'.
    But I'm sure I tested it on other boards too.

    Every board with a NEC rom I had in hands had troubles with the DivIDE 57c.
    bverstee bverstee January 2013 Hardware
  • Another cause for DivIDE problems on 48K'sThe last months some topics were opened to discuss problems with 48K ZX Spectrums and DivIDE. Sofar we found: - Bad Z80's because of poor fanout (si…

    ... a NEC rom I had in hands had troubles with the DivIDE 57c ...
    roko roko January 2013 Hardware
  • Another cause for DivIDE problems on 48K'sThe last months some topics were opened to discuss problems with 48K ZX Spectrums and DivIDE. Sofar we found: - Bad Z80's because of poor fanout (si…

    ... that both had the NEC D23128C 057 rom soldered on them.
    Divide 5.7c and both of ... something gone bad on your divide I guess....
    Mine works ... far (with or without a NEC rom) and I'm talking more ...
    gtsamour gtsamour January 2013 Hardware
  • Another cause for DivIDE problems on 48K'sThe last months some topics were opened to discuss problems with 48K ZX Spectrums and DivIDE. Sofar we found: - Bad Z80's because of poor fanout (si…

    ... something gone bad on your divide I guess....
    Mine ... problems on any machine with NEC rom together with my 57c's ... the DivIDE interfaces I made that causes this incompatibility with NEC roms ... ?

    I should test your DivIDE on ...
    bverstee bverstee January 2013 Hardware
  • Another cause for DivIDE problems on 48K'sThe last months some topics were opened to discuss problems with 48K ZX Spectrums and DivIDE. Sofar we found: - Bad Z80's because of poor fanout (si…

    ... />
    The combination of NEC rom together with an adapted FATware ... br /> I sold every DivIDE interface with the adapted +2 ... ]http://velesoft.speccy.cz/zx/divide/divide-fatware.htm[/url].
    ... 12a works perfectly with the NEC rom!!
    But please verify ...
    bverstee bverstee January 2013 Hardware
  • Another cause for DivIDE problems on 48K'sThe last months some topics were opened to discuss problems with 48K ZX Spectrums and DivIDE. Sofar we found: - Bad Z80's because of poor fanout (si…

    ... (only for test...). Original DIVIDE 57C often contain GAL22V10 chips ... go.
    Especially the DivIDE is sensitive to this, because ... some modifications use ZX48 rom and divide system in one eeprom ... ZX Spectrum owners with a NEC rom that want to install ESXDOS ...
    bverstee bverstee January 2013 Hardware
  • Another cause for DivIDE problems on 48K'sThe last months some topics were opened to discuss problems with 48K ZX Spectrums and DivIDE. Sofar we found: - Bad Z80's because of poor fanout (si…

    ... with NEC rom in ZX.

    I can make small divide utility ...
    velesoft velesoft January 2013 Hardware
  • Another cause for DivIDE problems on 48K'sThe last months some topics were opened to discuss problems with 48K ZX Spectrums and DivIDE. Sofar we found: - Bad Z80's because of poor fanout (si…

    ... hope he will be: if DivIDE 2K11 is using the same ... work on a Spectrum with NEC rom?

    If so, why ...
    bverstee bverstee January 2013 Hardware
  • Another cause for DivIDE problems on 48K'sThe last months some topics were opened to discuss problems with 48K ZX Spectrums and DivIDE. Sofar we found: - Bad Z80's because of poor fanout (si…

    ... is not yet confirmed that DivIDE 2K11 does or does not ... a ZX Spectrum 48K with NEC rom.

    I never desolder ...
    bverstee bverstee January 2013 Hardware
  • Another cause for DivIDE problems on 48K'sThe last months some topics were opened to discuss problems with 48K ZX Spectrums and DivIDE. Sofar we found: - Bad Z80's because of poor fanout (si…

    ... /> I'm currently testing a DivIDE 57c with Fatware 0.12 ... ZX Spectrum, iss.2 with NEC ROM. I've put a 1N4148 ...
    mcleod_ideafix mcleod_ideafix March 2013 Hardware
  • Another cause for DivIDE problems on 48K'sThe last months some topics were opened to discuss problems with 48K ZX Spectrums and DivIDE. Sofar we found: - Bad Z80's because of poor fanout (si…

    ... /> I'm currently testing a DivIDE 57c with Fatware 0.12 ... ZX Spectrum, iss.2 with NEC ROM. I've put a 1N4148 ...
    bverstee bverstee March 2013 Hardware
  • Another cause for DivIDE problems on 48K'sThe last months some topics were opened to discuss problems with 48K ZX Spectrums and DivIDE. Sofar we found: - Bad Z80's because of poor fanout (si…

    ... />
    1. ESXDOS on a DivIDE 57c has the same problem ... a ZX Spectrum 48K with NEC rom as the 128K FATWare versions ... don't know if the DivIDE 2K11 has this problem; if ... have the problem with the NEC rom inside ZX Spectrum 48K models ...
    bverstee bverstee August 2013 Hardware
  • Another cause for DivIDE problems on 48K'sThe last months some topics were opened to discuss problems with 48K ZX Spectrums and DivIDE. Sofar we found: - Bad Z80's because of poor fanout (si…

    NEC ROM is not issue for divIDE. I have it in Timex TC2048 and works ok.
    kpuchatek kpuchatek August 2013 Hardware
  • Another cause for DivIDE problems on 48K'sThe last months some topics were opened to discuss problems with 48K ZX Spectrums and DivIDE. Sofar we found: - Bad Z80's because of poor fanout (si…

    [QUOTE=kpuchatek;719117]NEC ROM is not issue for divIDE. I have it in Timex TC2048 and works ok.[/QUOTE]

    I never mentioned a TS2048.

    ZX Spectrum 48K with unmodified NEC rom + DivIDE 57c with ESXDOS will not work.
    bverstee bverstee August 2013 Hardware
  • Another cause for DivIDE problems on 48K'sThe last months some topics were opened to discuss problems with 48K ZX Spectrums and DivIDE. Sofar we found: - Bad Z80's because of poor fanout (si…

    ... />
    1. ESXDOS on a DivIDE 57c has the same problem ... a ZX Spectrum 48K with NEC rom as the 128K FATWare versions ... don't know if the DivIDE 2K11 has this problem; if ... have the problem with the NEC rom inside ZX Spectrum 48K models ...
    velesoft velesoft August 2013 Hardware
<1234567…34>

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