-
Faulty M1 LineHello, I've got a new DivIDE but it's not working with my Spectrum 48k+. I've got a sneaking suspicion that it's a faulty M1 line. Is there any way …
I had a speccy with an M1 faulty line, the Multiface128 didn't work, the machine reseted each time i pressed the multiface's red button.
Changed the Z80 and that fixed the problem. -
Faulty Spectrum (help requested)I have an issue 6a specci. It's Z80 has the fault m1 line problem (Multiface 128 does not work). So I decided to put in a new Z80 but unfortunately i…
... it's weird that the Multiface 128 now works with this ... a functional connection from the M1 pin of the CPU to ... -
Multiface 128 Disassembly questionI was looking at a disassembly from a Multiface 128 rom, now I'm not a coder so I have a question, am I correct in understanding the code starts at #…
... 's entirely possible that the Multiface was changed between its initial ... trailing edge of the M1 cycle (when the M1 line transitions low ... what the various models of Multiface might do, I don't ... , at the leading edge of M1, is to pin the through ... -
Converting games from tap to dskHi to all from Greece, Being an old Speccy user and now owner of most models of Spectrum (48k , 48k+ , 128K, +2 grey and +3) , I desided to salvage m…
... have a basic loader for M1 files for 48k stuborn games ... the existance of the actual multiface? -
Converting games from tap to dskHi to all from Greece, Being an old Speccy user and now owner of most models of Spectrum (48k , 48k+ , 128K, +2 grey and +3) , I desided to salvage m…
... have a basic loader for M1 files for 48k stuborn games ... the existance of the actual multiface?[/QUOTE]
Yep. See ... -
Problem with new DivIDE+ on ZX +2A?I just received DivIDE+ from RWAPSoftware and am having trouble getting it to work on my +2/A. The device came with 1GBCF card preinstalled with 3 ga…
... the bad z80 without the M1 line, does the CPU look ... ]
Test: if a Multiface works, it is okay.
M1 Line is faulty or not ... -
Message to all programmersHello folks, more and more programmers in the recent time are using special loading routines for their Homebrew-Software. This makes their game runn…
... users would have used a Multiface here and you programmers would ... game without intro in an "M1 Loading" style. Isn?t it ... -
Multiface 1 cant load tapesIve just acquired a Multiface 1 for my 48k, seems to work alright, brings up the menu etc but when i go to load a tape,(and this is in the off or on …
... it does appear that the multiface is affecting the loading signal ... can confirm the joystick and multiface all seems to be fully ... too low).
The M1 line on the Z80 appears ... />
I will try the multiface with another Spectrum tomorrow, and ... -
DivIDE+ and the 48k SpeccyI've 3 48k speccies of various revisions and none of them are working with my DivIDE+ yet all my 128's do, yet I'm sure when I first had it I'm sure …
Dont know if this helps any but I had a 48 that wouldnt work with a multiface believe it or not, turned out it was the ULA (Thanks Rich!), isnt it usually the M1 line or something thats at fault in that situation? -
Guide price for a 48k rubberkeys from you lot?My trusty Spectrum (an Issue 3, working since late 1983 or early 1984) has finally upped and carked on me :-( Now I could hit ebay or the local boot…
... many can test the M1 line I guess (multiface etc) and thats ... -
A misbehaving DivIDE 57c (Now repaired)Hello there my fellow WoS'ers Indeed it has been a while since my last post, please let me wish you all a (belated) Happy New Year, my this year bri…
... sounds for me like the M1 line of the Z80 in ... . Or if you have a Multiface or any other device with ... -
divIDE x Spectrum clonesAnyone has a Spectrum clone and did a test with divIDE? Here in Brazil we have 2 Spectrum clones (TK90X and TK95) that are almost 95-99% compatible w…
... seen TK90X with BetaDisk interface, Multiface 1, AY sound interface, joysticks ... Interface, when you connect a Multiface 1, the Betadisk stop ... to work, or, M1 simply not activate, or crash ... , BetaDisk 48 interface and Multiface 1 are very common).
Known Z80 M1 problems?I got an email yesterday from someone asking for a Z80 without the M1 problem. I only know about the fanout problem that many Z80's are suffering of…
... =bverstee;634412]
This M1 problem is new to me.< ... on M1, for example the DivIDE, the Interface 1, Multiface, Spectranet ... machine with a faulty M1 line (since M1 signals an instruction ... detect the instruction fetch without M1 working).
The ...Known Z80 M1 problems?I got an email yesterday from someone asking for a Z80 without the M1 problem. I only know about the fanout problem that many Z80's are suffering of…
... use Z80s with defective !M1 lines as that would prevent ... If you look at the Multiface documentation it does mention this ... the first pressing of the Multiface's red button causes the ... hardware devices, such as the Multiface, use one particular "line" ( ...Z80 new old stockHi. I found this on eBay but ... is there a way we could know they don't hav a faulty M1 line? [url]http://www.ebay.com/itm/Zilog-Z80-CPU-Z0840004PS…
... I've seen have dodgy M1 lines. Normally you won't ... be problems.... I have a Multiface 1, a 128 and a ...Z80 new old stockHi. I found this on eBay but ... is there a way we could know they don't hav a faulty M1 line? [url]http://www.ebay.com/itm/Zilog-Z80-CPU-Z0840004PS…
... (and perhaps about how easy /M1 line is damaged in Sinclair ... , Sharp), and whenever I used /M1 signal in a circuit, that ... few cases where I used /M1 signal, it was needed otherwise ... , e.g. ZX81, Amstrad, MSX, Multiface 128 etc. etc.. That's ...Z80 new old stockHi. I found this on eBay but ... is there a way we could know they don't hav a faulty M1 line? [url]http://www.ebay.com/itm/Zilog-Z80-CPU-Z0840004PS…
... didn't work with my Multiface 1. They are brand new ... ] no activity at all on /M1 line, even in a system ... where /M1 isn't used).
Multiface 1. Chances are NMOS and ...Z80 new old stockHi. I found this on eBay but ... is there a way we could know they don't hav a faulty M1 line? [url]http://www.ebay.com/itm/Zilog-Z80-CPU-Z0840004PS…
... , e.g. ZX81, Amstrad, MSX, Multiface 128 etc. etc..[/QUOTE]
M1 line, not a "broken" M1 line[/QUOTE]
The !M1 line is either ...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…
... (signal strength) or a defective M1 line
- Problems with the ... due to this reason, a Multiface might still work.
Toastrack not recognising an IF1What the title says really, doesnt know its there, buffed the edge connector within an inch of its life but still no joy, also just now ive tried a M…
Yes, most likely M1. Both the IF1 and the Multiface will need it to trap the M1 cycle at the addresses they decode.Checksum routine wantedI wish to make a program that verify integrity of a Multiface 1 ROM. It is possible to compare each byte of the ROM against a binary dump, but this i…
... real hardware.
Brazilian Multiface clones use EPROM instead ROM ... to detect different versions of M1 ROMs around. ;)The Disciple clone... doable?Hi. As a spectrum user in the 80's this was the dream interface all-in-one for me. I have a 48k+ and planning on get a 128K toast-rack later. Anyway…
... being careful to ensure M1 cycles don't occur ... 0x7ffd or rely upon M1 cycles only occurring for ...
[QUOTE]I find blocking M1 in this way the simplicity ... favour of peripherals taking M1 and ANDing it with ... the Beta 128 and Multiface had to do special ...+2 Grey NMI problemMy shonky old +2 has always worked very well until recently, ive found that hitting the nmi button on my multiface will either do one of three things…
... had no issues using a multiface with this machine, its only ... Z80 inside (and an external M1 line). A faulty Z80 may ...ZX Interface 1 Odd ProblemI have just upgraded a rubber key ZX Spectrum (issue 3) to a ZX Spectrum+. Oddly, when used with a ZX Interface 1, CAT 1 produces a question mark. T…
... problem!
I tried the Multiface - it didn't work. CPU ... check the expansion bus - yup, M1 and NMI both connect correctly ...Hardware description - MULTIFACE 128I make schematic of MULTIFACE 128 (v36) from PCB layers downloaded from WOS. But all PCB layers on WOS contain some bugs, absent signals, etc.. Now …
... /> [B][U]FULL DESCRIPTION of MULTIFACE 128 (board version 36)[/U ... port address (on bit D7). Multiface 128 contain through connector for ... ,RD/RW and ADDRESS lines, M1 is unused.Hardware description - MULTIFACE 128I make schematic of MULTIFACE 128 (v36) from PCB layers downloaded from WOS. But all PCB layers on WOS contain some bugs, absent signals, etc.. Now …
... ). Address decoder detect is CPU M1 cycle at address #66 or ... .1.
Now is MULTIFACE memory connect.
For ...PlusDlite problems with 128K modelsLast year I developed the PlusDlite, and already shipped out a couple of them. Only recently I discovered some problems with 128K models. I remember…
... this has a known working M1 line. Strange behaviour though, with ... .pdf[/URL]
The multiface 128 manual mentions spectrum crashes ...Faulty M1 or no?Hi all, OK, so I've got an issue 4B which was pretty much untouched and appears to work fine (starts up OK, loads games, 23732 and 23733 both retu…
... work with my Retroleum Smartcard, Multiface 1 or DivMMC Enjoy!.
Multiface 1 just resets when you ... I thought, "aha! a dodgy M1 line", so I removed the ...Faulty M1 or no?Hi all, OK, so I've got an issue 4B which was pretty much untouched and appears to work fine (starts up OK, loads games, 23732 and 23733 both retu…
The fact that the Multiface button just resets the machine ... all address lines, NMI, RD, M1, MREQ and ROMCS.128K Toastrack (Noisy video output)Hello there guys! Need all of yours guides and advices. Some time ago I bought a nice looking 128K from eBay (motherboard v6K) and put it aside for…
... Zilog might have a faulty /M1 line. It is well know ... any inference which requires the /M1 active.[/quote]
Yeah ... in my case the M1 line was fine. Multiface 128 was working ...
