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DIVIDE PLUS - ZX bus protectorI make new ZX BUS PROTECTOR for use with DIVIDE PLUS interface. This is very small "convertor" for connection to new ZX BUS connector. PCB contain on…
... use external memory)
- ROMCS and both ROMOE signals on ... -
MicrodriveHi I didn't write many threads and my English is not the best. I have one original MD and 2 MD's from Sinclair QL. First I belived that they are ful…
... the QL MD direct to IF1 without connecting
a second ... connect the QL MD to IF1?
Thanks a lot for ... -
TV went black & white...Yesterday my old, trusty CRT television suddenly decided to show TV channels in black & white only. (and nothing of value was lost... :grin:) It's a…
... ? :-?
Btw: I have schematic, TV electronics are not my ... -
Faulty Interface 1I bought a 'tested' Interface 1 on ebay the other day. Aside from the previous owner 'cleaning' the contacts with WD40!!! (bad, bad, bad eeurrgh :rol…
... a fault in paging the IF1 ROM but was wondering if ... -
Error in the Schematics.Hi, i have been looking at a Speccy 48 PCB, and have figured out that all the Speccy schematics in the archive up to and including Rev 4a, contain an…
... 27 as shown in the schematic.
This seems to ... corrected in the Rev 5 schematic.
Probably worth noting ... -
yeah - unix for zx spectrumI started a new hobby project. An operating system for ZX Spectrum. A unix clone. Talked to my friend about it and he asked me what if after I'm done…
... support called SpecNet available via IF1 network and/or via serial ... -
Possible design fault in +2A/+3 power pack. Fix?It's the second time a +3 power pack ceases to work when I make a short while using the scope to diagnose a +2A/+3 computer. And it's the second tim…
ZX spectrum +2 issue3 (gray) videoout problemHi! Have distorted flickering image on ZX spectrum +2 gray issue3. RGB connection thru sony CXA rgb->svideo coder (Good quality! but flickering) [ur…
... fine without flickers.
Schematic [url]http://img163.imageshack.us ...S-Video kit for 128k modelsAs discussed in this thread: [URL]http://www.worldofspectrum.org/forums/showthread.php?t=33768[/URL] My arm has been twisted to do an s-video mod ki…
... I can't find a schematic anwyhere* but either way, it ...Interface 1 - a proper fix?Hi everybody, Over the last few days I've been looking at Interface 1's again. I keep coming up against the "spins forever" problem, i.e. writing to…
... a bit, but still some if1's are better than others ... read line? Can we modify IF1's such that they become ...Shadow ROM partial decoding not implemented in emulatorsOr at least, not implemented in Spectaculator, and it seems that not in Fuse too. [URL="http://www.speccy.org/foro/viewtopic.php?f=8&t=408&start=53"…
... , because as he argumented, the ROMCS line doesn't page off ...Switching peripherals on and offis there a way in which i can add a switch to switch off peripherals and switch another one on i.e. Multiface, DivIDE etc? Can i add it on the NMI o…
... it on the NMI or ROMCS lines on a 48k Spectrum ... as they dont have a ROMCS line.
i dont want ...RGB cableI constructed an RGB cable to my +3 as per schematic on page 14 of this document here: [URL="http://mts.speccy.cz/doc/128_rgb.pdf"]http://mts.speccy.…
... to my +3 as per schematic on page 14 of this ...Improving the Spectrum +2's Cassette RecorderHi people, Nice techie question here! I have a Spectrum +2 (grey). Actually, I have several. I'm trying to get this particular one to load tapes be…
... />
I looked at the schematic, and I can see the ...Microdrive access via IF 1 NetworkHello, I have a question regarding Microdrive access via IF 1 network. Lets assume I Have two Speccys both with IF but only one with Microdrive. Bot…
... Microdrive. Both are connected via IF1 network. So is it possible ...Create a new microdrive cartridge image formatHi there, I'm working to emulate the IF1+Microdrives in JSpeccy.I've found what the "classic" MDR format ins't capable to store all the required inf…
... 'm working to emulate the IF1+Microdrives in JSpeccy.I've ...ATOM HDD interface for SAM COUPEHere is original old schematic of ATOM HDD interface: [url]http://8bit.yarek.pl/interface/sam.atom/atom.gif[/url] My first ATOM: [url]http://velesof…
Here is original old schematic of ATOM HDD interface:
[ ...Cheetah Midi interface for ZX SpectrumHi, does anyone know how to get this hardware? [URL="http://www.worldofspectrum.org/hardware/feat36.html"]http://www.worldofspectrum.org/hardware/fe…
... /> or does anyone have the schematic of that interface including software ...My head hurtsCan't sleep. Head hurts :( I've been sitting here all night doing schematic diagram stuff in an attempt to bore myself to sleep but that's not helpe…
Can't sleep. Head hurts :(
I've been sitting here all night doing schematic diagram stuff in an attempt to bore myself to sleep but that's not helped.How to join PC to ZX Spectrum via IF1?[LIST] [LIST] [/LIST][/LIST]Hello All, I've failed miserably :-? at getting even a hint that the Spectrum and PC I have connected together are indee…
[LIST]
[LIST]
[/LIST][/LIST]Hello All,
I've failed miserably :-? at getting even a hint that the Spectrum and PC I have connected together are indeed connected. I followed the instructions from Chapter 8 in the Interface 1 manual ...Interface I and the "net" LANRegarding Chapter 7: [URL="ftp://ftp.worldofspectrum.org/pub/sinclair/books/MicrodriveAndInterface1Manual.pdf"]IF1 Manual[/URL] With Interface 1 mos…
... /pub/sinclair/books/MicrodriveAndInterface1Manual.pdf"]IF1 Manual[/URL]
With ... net LAN cable with my IF1 so I was wondering is ... a PC Spectrum / IF1 Emulator with a real IF1. I don’t ... the microdrive of a real IF1?!
Any idea what ...ROM switch on NMIHello! Please, help me or point in the right direction. I am building a project for 48k spectrum which must activate its rom (actually static ram) …
... M1 starts i can switch ROMCS
and deactivate my NMI ... . So, this way ROMCS switch in between instruction fetches ... /> The problem here is that ROMCS must be changed very fast ... ,
wait for BUSACK, change ROMCS, deactivate BUSREQ, wait for M1 ...Help pleeease "Proving Emulator OpCode flags are correct"So I had a cunning plan... I wanted to write a test harness for Emulators that could "prove" that all opcode flags were correct. I wanted something m…
... ado...
I boughgt an IF1
Wrote a PC program ... there any Emulator that support IF1 RS232 (e.g. to a ... transfer basic listings via the IF1 over to the hardware, so ...Spectaculator: Com port bug?I just bought Spectaculator yesterday but probably erred as the one feature it has that no other emulator has is the ability to use COM ports with an…
... COM ports with an emulated IF1 but it doesn?t appear ... to communicate to my real IF1 :(
I?ve sent ...Misbehaving 128K toastrackI acquired a toastrack some time ago off ebay and it worked just nice up until recently. It arrived with no PSU or cables so I paired it with a grey …
... started when I connected the IF1 + microdrive (the MDR is having ...More troubles: The microdriveRecently bought a used Spectrum Expansion System incl IF1 and microdrive - in a really nice looking condition, along with the accompaniing software o…
... used Spectrum Expansion System incl IF1 and microdrive - in a really ...Spectrum 48k Issue 4S?I just recieved a Spectrum 48K that had the bottom case from an issue 1 and the top half from a later issue, and the main board is 1983 Issue 4S. I a…
I just recieved a Spectrum 48K that had the bottom case from an issue 1 and the top half from a later issue, and the main board is 1983 Issue 4S. I am curious in what way it differs, as there are no schematic for issue 4S on this site.
