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  • SPECTRA New from Paul FarrowLooks good! Read about it [URL="http://www.fruitcake.plus.com/Sinclair/Spectrum/Spectra/SpectraInterface.htm"]here[/URL]

    ... come up with a suitable FPGA or CPLD implementation (with some ... controlled master clock and enough FPGA resource for the PLL in ... . This will likely require fewer FPGA resources and less design time ... 't know how full the FPGA is or how much memory ...
    Winston Winston October 2012 Sinclair Miscellaneous
  • SPECTRA New from Paul FarrowLooks good! Read about it [URL="http://www.fruitcake.plus.com/Sinclair/Spectrum/Spectra/SpectraInterface.htm"]here[/URL]

    ... up with a suitable FPGA or CPLD implementation (with ... master clock and enough FPGA resource for the PLL ... will likely require fewer FPGA resources and less design time ... know how full the FPGA is or how much ... />
    I know the FPGA is pretty much full and ...
    BloodBaz BloodBaz October 2012 Sinclair Miscellaneous
  • WIP: ULAPlus hardware implementationThis aims to be an "almost" plug-in replacement for the Sinclair ULA chip fitted in Spectrum 16K/48K/Plus machines. It comes in a form of a small PC…

    ... colour bars image) inside the FPGA. This design comply with all ...
    mcleod_ideafix mcleod_ideafix October 2012 Hardware
  • WIP: ULAPlus hardware implementationThis aims to be an "almost" plug-in replacement for the Sinclair ULA chip fitted in Spectrum 16K/48K/Plus machines. It comes in a form of a small PC…

    ... (or some pages) into the FPGA memory, so the chip can ...
    mcleod_ideafix mcleod_ideafix October 2012 Hardware
  • Encyclopaedia GalacticaThis is the development thread for Encyclopaedia Galactica, the game upon which I'm currently working, along with a few others. The idea is that the…

    ... it on my MCC-216 (FPGA). For some reason the game ...
    NML32 NML32 October 2012 Development
  • Encyclopaedia GalacticaThis is the development thread for Encyclopaedia Galactica, the game upon which I'm currently working, along with a few others. The idea is that the…

    ... it on my MCC-216 (FPGA). For some reason the game ...
    jp jp October 2012 Development
  • Pentagon RAM memoryDoes anybody know or have reference to technical docs, how no contention on RAM access is achieved in Pentagon 128K clone ? Looking at schematics it …

    ... 'll probably instead use an FPGA to make a system-on ...
    Winston Winston October 2012 Hardware
  • Hardware RantThis could have gone in general chit-chat, but as it is Spectrum related, and hardware related... I am in the process of doing some research into co…

    ... not as big as an FPGA, most are 5 volt tolerant ...
    Winston Winston October 2012 Hardware
  • Hardware RantThis could have gone in general chit-chat, but as it is Spectrum related, and hardware related... I am in the process of doing some research into co…

    ... /> Ok, I could use an FPGA but that's surface mount ...
    Zetr0 Zetr0 October 2012 Hardware
  • ESXDOS v0.8.0 released (with NMI Browser)Hello, To celebrate the speccy's 30th birthday, here's the latest version of ESXDOS for DivIDE users. The full changelog is too long to post here, s…

    ... core v2.1.0 for FPGA boards.

    You can ...
    phoenix^ra phoenix^ra October 2012 Announcements
  • Pentagon RAM memoryDoes anybody know or have reference to technical docs, how no contention on RAM access is achieved in Pentagon 128K clone ? Looking at schematics it …

    ... trick...) the CLKDLL inside the FPGA as it would require a ...
    adorigatti adorigatti October 2012 Hardware
  • What Spectrum projects (Software/Games/Utility)(Hardware)(Others) are you working on?So, basically that :) You dont have to give names or more clues if you dont want to ;) Also, if you are working on more than one, you can tell all of…

    ... level translator for an FPGA, though. The FPGA will be used to ...
    Winston Winston October 2012 Development
  • Fantasy Z80 instructions?This follows on from something catmeows said in another thread, and that I've been meaning to ask for a while. This may sound daft to people with mo…

    ... specs of both, and an FPGA... :smile:
    guesser guesser November 2012 Development
  • WIP: ULAPlus hardware implementationThis aims to be an "almost" plug-in replacement for the Sinclair ULA chip fitted in Spectrum 16K/48K/Plus machines. It comes in a form of a small PC…

    ... ROMCS_OUT signal. Logic inside FPGA detects whether ROMCS is high ... 've learned so far: FPGA's (or at least, ... Spartan 3E FPGA's) are toughter than ... pin was connected to the FPGA, without the limiting resistor. ... worked (i.e. the FPGA hasn't exploded or ...
    mcleod_ideafix mcleod_ideafix November 2012 Hardware
  • WIP: ULAPlus hardware implementationThis aims to be an "almost" plug-in replacement for the Sinclair ULA chip fitted in Spectrum 16K/48K/Plus machines. It comes in a form of a small PC…

    ... /> On the robustness of the FPGA, I was reading one of ...
    Winston Winston November 2012 Hardware
  • WIP: ULAPlus hardware implementationThis aims to be an "almost" plug-in replacement for the Sinclair ULA chip fitted in Spectrum 16K/48K/Plus machines. It comes in a form of a small PC…

    ... ]On the robustness of the FPGA, I was reading one of ... want to leave the poor FPGA pins nude in front of ...
    mcleod_ideafix mcleod_ideafix November 2012 Hardware
  • WIP: ULAPlus hardware implementationThis aims to be an "almost" plug-in replacement for the Sinclair ULA chip fitted in Spectrum 16K/48K/Plus machines. It comes in a form of a small PC…

    ... , as the levels that the FPGA output seem not to be ... space is left in the FPGA to implement more cool things ... AY-3-8912 chip on FPGA and bring 128K sound to ...
    mcleod_ideafix mcleod_ideafix November 2012 Hardware
  • WIP: ULAPlus hardware implementationThis aims to be an "almost" plug-in replacement for the Sinclair ULA chip fitted in Spectrum 16K/48K/Plus machines. It comes in a form of a small PC…

    ... signal that comes from the FPGA, after passing through a 270 ... this:
    [code]ROMCS from FPGA
    -------------\/\/\/\/-----+-----> to pin OE ...
    mcleod_ideafix mcleod_ideafix November 2012 Hardware
  • WIP: ULAPlus hardware implementationThis aims to be an "almost" plug-in replacement for the Sinclair ULA chip fitted in Spectrum 16K/48K/Plus machines. It comes in a form of a small PC…

    ... current would flow through the FPGA input/output buffer) so it ...
    mcleod_ideafix mcleod_ideafix November 2012 Hardware
  • Standard for upgrading the original ZX Spectrum[B][U]1. Easily connect external ULA and video RAM.[/U][/B] [url]http://zx.clan.su/forum/8-102-576-16-1352476666[/url] The method consists in blocki…

    ... have the resources of an FPGA already at your disposal, it ...
    Winston Winston November 2012 Hardware
  • Standard for upgrading the original ZX Spectrum[B][U]1. Easily connect external ULA and video RAM.[/U][/B] [url]http://zx.clan.su/forum/8-102-576-16-1352476666[/url] The method consists in blocki…

    ... complex ones that have an FPGA somewhere in their design, and ...
    Winston Winston November 2012 Hardware
  • Standard for upgrading the original ZX Spectrum[B][U]1. Easily connect external ULA and video RAM.[/U][/B] [url]http://zx.clan.su/forum/8-102-576-16-1352476666[/url] The method consists in blocki…

    ... complex ones that have an FPGA somewhere in their design, and ...
    Black_Cat Black_Cat November 2012 Hardware
  • Hoping to build a zx spectrum laptop in futureHi, I'm new here, going to school learning to be a computer tech. I like computers, computer stuff and I'm sort of a laptop fan - have several laptop…

    ... been created using technology like FPGA - There are already a number ... [/url]), or one of the FPGA models like Speccy2010, ect... Many ...
    kgmcneil kgmcneil November 2012 Hardware
  • How far are we from a single-chip 100% ZX Spectrum compatible solution?I really like to read about the projects of some geniusses here on WoS who are working on their ZX Spectrum clones. IMHO some main steps that have b…

    ... ]

    You can buy FPGA board from..
    [url]http ... -gameduino-vga-video-xilinx-Spartan-FPGA-shield-UEXT-/281033510332?pt=UK_BOI_Electrical_Components_Supplies_ET ...
    superfo superfo December 2012 Hardware
  • How far are we from a single-chip 100% ZX Spectrum compatible solution?I really like to read about the projects of some geniusses here on WoS who are working on their ZX Spectrum clones. IMHO some main steps that have b…

    ... solution would be better (a FPGA, with RAM, ROM and Z80 ... outside the FPGA). You would have a smaller ...
    Zup Zup December 2012 Hardware
  • How far are we from a single-chip 100% ZX Spectrum compatible solution?I really like to read about the projects of some geniusses here on WoS who are working on their ZX Spectrum clones. IMHO some main steps that have b…

    ... DRAM's, a CPLD or FPGA to replace the ULA. Depending ... on the actual CPLD or FPGA you may be able to ...
    1024MAK 1024MAK December 2012 Hardware
  • How far are we from a single-chip 100% ZX Spectrum compatible solution?I really like to read about the projects of some geniusses here on WoS who are working on their ZX Spectrum clones. IMHO some main steps that have b…

    ... /> ZX clone version in one FPGA chip is also similar as ... , ula in one CPLD/small FPGA.
    All ZX clones without ... hardware emulators. And difference between FPGA based clone with HW emulation ...
    velesoft velesoft December 2012 Hardware
  • How far are we from a single-chip 100% ZX Spectrum compatible solution?I really like to read about the projects of some geniusses here on WoS who are working on their ZX Spectrum clones. IMHO some main steps that have b…

    ... , ula in one CPLD/small FPGA.
    All ZX clones without ... hardware emulators. And difference between FPGA based clone with HW emulation ...
    bverstee bverstee December 2012 Hardware
  • How far are we from a single-chip 100% ZX Spectrum compatible solution?I really like to read about the projects of some geniusses here on WoS who are working on their ZX Spectrum clones. IMHO some main steps that have b…

    ... not produce anymore.
    CPLD/FPGA is the right direction, but ...
    kpuchatek kpuchatek December 2012 Hardware
  • How far are we from a single-chip 100% ZX Spectrum compatible solution?I really like to read about the projects of some geniusses here on WoS who are working on their ZX Spectrum clones. IMHO some main steps that have b…

    ... boot directly to ZX Spectrum. FPGA contain Z80 core, not like ...
    superfo superfo December 2012 Hardware
<1…16171819202122…34>

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