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Search Again :: Adv Search 401 results in 0.001s
<1…891011121314>
  • MISSING M1 LINE ON +48????I was posting questions about my DIVMMC enjoy not working on one of my +48`s and have now got round to testing if its cpu related.Trouble is the one …

    ... it's own ROM (or EEPROM, Flash ROM or EPROM). In ...
    1024MAK 1024MAK July 2014 Hardware
  • Creating real usable custom romsWhat is needed and what would the cost be to create a custom rom for a +128 or +2 I only ask because ive been messing around under emulation with som…

    ... .uk/itm/Universal-miniPRO-EPROM-EEPROM-FLASH-Programmer-TL866CS-High-speed ...
    balford balford July 2014 Hardware
  • Would Anyone Be Willing/Able To Burn Me A RomI would Like If Possible For Someone To Burn Me A Custom 32k Rom But I Would Also Need The Chip Supplied Which Cuts Down My Chances Of Someone Being …

    ... the top of them).
    EEPROM - [i]Electrically[/i] Erasable Programmable ...
    JonB JonB July 2014 Hardware
  • 1st interface in 30 yearsHi all, The last time I built a ZX Spectrum interface was 30 years ago, so today I gave it a whirl with an external rom. Switchable in/out of course…

    ... was thinking though, as the EEPROM/flash chip used is not ... we consider another type of EEPROM/flash chip?

    [B ...
    1024MAK 1024MAK September 2014 Hardware
  • 1st interface in 30 yearsHi all, The last time I built a ZX Spectrum interface was 30 years ago, so today I gave it a whirl with an external rom. Switchable in/out of course…

    If the code is being (or going to be) rewritten, it makes sense to allow the user to select which EEPROM/Flash chip is being used so that the sector erase code and programming code is correct for the chip in use :-)

    [I][B]Mark[/B][/I]
    1024MAK 1024MAK September 2014 Hardware
  • 48K Ram Check Command not workingI am trying to repair my Spectrum 48k. It is having issues loading games, sometimes they load all the way to launch and then the speccy resets. Oth…

    ... , and can program EPROM or EEPROM chips, you can program the ... Spectrum to use an EPROM/EEPROM.

    The ROM test ...
    1024MAK 1024MAK September 2014 Hardware
  • 1st interface in 30 yearsHi all, The last time I built a ZX Spectrum interface was 30 years ago, so today I gave it a whirl with an external rom. Switchable in/out of course…

    ... the user to select which EEPROM/Flash chip is being used ...
    balford balford September 2014 Hardware
  • Unable to reflash DivIDE2k14I've been trying to reflash my DivIDE 2k14 from Lotharek. I'd like to replace the FATware version supplied with the one approriate for my 128k +2 Eng…

    ... this exist?[/QUOTE]

    EEPROM chip in your interface is ...
    velesoft velesoft October 2014 Hardware
  • Retroleum SMART Card InterfaceHi guys, Over the last few months I've been designing an interface board for the Spectrum 48 - seems to be all the rage :) It started off as simple …

    ... have heard of flash memory, EEPROM, E?PROM etc which are ...
    1024MAK 1024MAK October 2014 Hardware
  • Unable to reflash DivIDE2k14I've been trying to reflash my DivIDE 2k14 from Lotharek. I'd like to replace the FATware version supplied with the one approriate for my 128k +2 Eng…

    ... protection feature.

    If eeprom 32kB in divide2k14 is protected ...
    velesoft velesoft October 2014 Hardware
  • 48K Ram Check Command not workingI am trying to repair my Spectrum 48k. It is having issues loading games, sometimes they load all the way to launch and then the speccy resets. Oth…

    ... the board to take an eeprom and loading up the ramtest ...
    wep855 wep855 October 2014 Hardware
  • Please explain Spectrum FPGA-clones to meI've been using the great ZXDS-emulator on the DS XL so far, which is great. But I kinda missed toying around with hardware. I've tried bidding on a …

    ... emulating a ROM? What about EEPROM / E?PROM and Flash ROM ... a PAL / GAL / CPLD / FPGA / EEPROM / E?PROM and Flash ROM ...
    1024MAK 1024MAK October 2014 Hardware
  • Please explain Spectrum FPGA-clones to meI've been using the great ZXDS-emulator on the DS XL so far, which is great. But I kinda missed toying around with hardware. I've tried bidding on a …

    ... you use GAL / CPLD / FPGA / EEPROM / E?PROM or Flash ROM ...
    1024MAK 1024MAK October 2014 Hardware
  • A redesigned version of Winston's diagnostic board[U][B]A redesigned version of Winston's diagnostic board[/B][/U] This is a continuation of a project that started in a hijacked thread [URL="http://…

    ... ROM (as in EPROM or EEPROM) and have a serial output ... does not offer on board EEPROM programming, and it does not ...
    1024MAK 1024MAK November 2014 Hardware
  • Please explain Spectrum FPGA-clones to meI've been using the great ZXDS-emulator on the DS XL so far, which is great. But I kinda missed toying around with hardware. I've tried bidding on a …

    ... permanent. You can also get EEPROM FPGAs which can be programmed ... the boot-up. I think EEPROM technology in FPGAs probably have ... larger voltage to program the EEPROM cells).
    Alcoholics Anonymous Alcoholics Anonymous November 2014 Hardware
  • Please explain Spectrum FPGA-clones to meI've been using the great ZXDS-emulator on the DS XL so far, which is great. But I kinda missed toying around with hardware. I've tried bidding on a …

    ... . There are FPGAs that use EEPROM technology to store switch state ...
    Alcoholics Anonymous Alcoholics Anonymous November 2014 Hardware
  • 128K Spectrum - can't figure out what's wrongLong time no post :) So I have this 128K Spectrum (+2 ROMs) that I cannot for the life of me figure out where the problem lies. Let's take a look a…

    ... poking around with the CPU, EEPROM, ZX8401, ULA and DRAMs removed ...
    Phu Phu December 2014 Hardware
  • PicoDivSDPicoDivSD ;) [URL=http://www.fotosik.pl/showFullSize.php?id=600aad8bc221f3cc][IMG]http://images52.fotosik.pl/625/600aad8bc221f3ccm.jpg[/IMG][/URL]

    ... use 512kB sram and small eeprom memory for system ESXDOS. For ...
    velesoft velesoft February 2015 Hardware
  • PicoDivSDPicoDivSD ;) [URL=http://www.fotosik.pl/showFullSize.php?id=600aad8bc221f3cc][IMG]http://images52.fotosik.pl/625/600aad8bc221f3ccm.jpg[/IMG][/URL]

    [QUOTE=Tuukka;821269]OK so it is the same as in DivMMC. Thanks ![/QUOTE]

    This device is small smd version of classic DIVMMC. Then functionality is same, memory size, eeprom, ports, all is same.
    velesoft velesoft March 2015 Hardware
  • External Z80 CPUHi Looking for some advice if possible. Many years ago I had a plug-in board for a Spectrum 48k which had a couple of switches, a z80 CPU, and a S…

    ... or 27C256 EPROM (or a 28C256 flash) chip. Program the normal ... or pin 1 on a 28C256 flash) to a 10k pull ...
    1024MAK 1024MAK August 2015 Hardware
  • 48k not startingHi team, I have 2 48k's, one works (Issue 4s), one doesn't (Issue 4a). The non-working one appears to start, but not finish the RAM test. The pape…

    ... runs from ROM (or EPROM/EEPROM/E2PROM/flash ROM). This can ...
    1024MAK 1024MAK September 2015 Hardware
  • what is this ?Hi all, I miss on ebay last days two of this strange things (different versions)? what is this and who made them .. ? google is not my friend in th…

    ... (maybe a flash ROM or EEPROM/E2PROM, less likely, but still ...
    1024MAK 1024MAK September 2015 Hardware
  • New hardware for saleAll prices include shipping costs to EU. ComCon: 22 euros. https://www.youtube.com/watch?feature=player_embedded&v=3e9i5rLnjy8 [img]http://zonad…

    I'm sorry. That's is my fault, I didn't notice that the cut affected one trace.

    The EEPROM was pre-burned. You can get the game/ROM list by typing "CAT" in the position 0. Thank you for your feedback.
    antoniovillena antoniovillena September 2015 Sales
  • Spectrom interface ?Hi all, I got 2 of this devices ... :) [img]http://forest.no-ip.org/wos/spectrom/20151006_151428.jpg[/img] [img]http://forest.no-ip.org/wos/sp…

    Or there is a mechanism that uses the Z80 CPU along with that 8 pin chip (which could be a micro controller) which copies the data in the EPROM/EEPROM to RAM on reset or power-up...

    [b][i]Mark[/i][/b]
    1024MAK 1024MAK October 2015 Hardware
  • Spectrom interface ?Hi all, I got 2 of this devices ... :) [img]http://forest.no-ip.org/wos/spectrom/20151006_151428.jpg[/img] [img]http://forest.no-ip.org/wos/sp…

    ... the data in the EPROM/EEPROM to RAM on reset or ...
    zPasi zPasi October 2015 Hardware
  • Preservation prioritiesHi all! Firstly, thanks to the WoS staff for setting this category up. Secondly, thanks to you for all for backing the idea, and in anticipation o…

    ... .5V EPROM types and 5V EEPROM/Flash types), a cheap programmer ...
    1024MAK 1024MAK October 2015 Hardware Preservation
  • Opus Discovery "the big switch on" (after 20 years)I have a few of these Opus Discovery's with different Eproms in that have not been swiched for 15-20 years or so . I am in no rush to switch any on …

    ... />
    A ROM/PROM/EPROM/EEPROM/E2PROM/Flash chip stores data ... ("burn") to a new EPROM//EEPROM/E2PROM/Flash chip.

    1024MAK 1024MAK October 2015 Hardware
  • Opus Discovery "the big switch on" (after 20 years)I have a few of these Opus Discovery's with different Eproms in that have not been swiched for 15-20 years or so . I am in no rush to switch any on …

    ... these tasks is checking the EEPROM contents with a very crude ...
    roko roko October 2015 Hardware
  • I had a go.I haven't written anything in ZX Basic since the 80s, so I thought I'd have a go. Now just to put you in the picture, I am a developer and know sever…

    ... programs loading from Flash ROM / EEPROM (including SD or CF card ...
    1024MAK 1024MAK November 2015 Sinclair Basic
  • Sudden death of ZX Spectrum 48KHello A friend gave me a 48K rubber keyed Spectrum. I brought it home, hooked it up to my little TV and powered it up. I was very happy to see t…

    ... run on any ROM/EPROM/EEPROM/E2PROM/Flash ROM that maps ...
    1024MAK 1024MAK December 2015 Hardware
<1…891011121314>

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Related Threads

  • ROM replacement using 28C256 EEPROMThought I'd share a quick project I knocked up in order to use a 28C256 EEPROM in place of the standard 23128 ROM in the Spectrum.<br /> <br /> The c…
  • Replacing +2/+3 rom with eeprom?Hi<br /> <br /> I want to change my +2a to +3e (or +2e). Garry mentions that 27C256 eprom can be used. I would like to use 28C256 instead. Pins are n…
  • Divide Eeprom - Write Protect FeatureDivIDE interface can contain two types of eeprom chip:<br /> <br /> EEPROM AT28C64 (without write protection, always rewritable)<br /> [url]http://ww…
  • Divide: problems with SNA files and upgrading EEPROMHello everybody, I am new at the forum. My name is Fernando, first of all thank you to the admins to give me access and the opportunity to participat…
  • flashing 28C256 by diagnostic board?Is it possible to flash EEPROMs 28C256 by use of the diagnostic board? Which page I have to choose for address space #4000-#7FFF?

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