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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]
... the FPGA tolerant to 5V inputs really work as Xilinx advertises ... going to be used as inputs, limiting the current flow through ... -
Issue 2 headache!Ive got an issue 2 here that firstly had a blown regulator (fixed), now its reading as a 16k machine (its fully populated), ive replaced and socketed…
... bus including the DRAM chip inputs and outputs is okay and ... -
Issue 2 headache!Ive got an issue 2 here that firstly had a blown regulator (fixed), now its reading as a 16k machine (its fully populated), ive replaced and socketed…
... via IC23 (74LS32) with the inputs from the Z80 on pins ... -
Successfully updated Issue 2 48k to 128k?Thanks to the donation by PMSR and through the very patient teachings of Velesoft, I have updated the Issue 2 to work with 128k. However. I have yet …
Are the data line inputs to the 74LS174 wired correctly?
Are the outputs of the 74LS174 working okay?
Are they wired to the correct inputs on the GAL?
[I][B]Mark[/B][/I] -
Successfully updated Issue 2 48k to 128k?Thanks to the donation by PMSR and through the very patient teachings of Velesoft, I have updated the Issue 2 to work with 128k. However. I have yet …
... if you have the correct inputs to the GAL, but VRAM ... -
Successfully updated Issue 2 48k to 128k?Thanks to the donation by PMSR and through the very patient teachings of Velesoft, I have updated the Issue 2 to work with 128k. However. I have yet …
... if you have the correct inputs to the GAL, but VRAM ... :
No of dedicated inputs used : 14/14 (100.0 ... of feedbacks used as dedicated inputs : 2/6 (33.3%)
Very weird +2 problem.After two days, I'm still fighting this grey +2. Symptoms: When I first got it, there were stray pixels on the screen, and stray lines and colours. …
... .
What if the inputs to the chip that controls ...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…
128k +2 (grey) Ear mod - New ULA and still problemsBverstee kindly sold me a 128K ula since the one in my +2 seemed to have a broken ear in. But even with the new ULA, I still can not load games throu…
... straight to one of the inputs. I had it all undone ...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…
... stress the non 5V tolerant inputs yet)
[img]http://www ...Your TV / screen / monitor requests, please!Hi all, So I just moved house and I'm looking for a new home for my retro tech collection. Previously I've run the trusty Spectrum through a tiny 4"…
... the size, aspect ratio and inputs of many EDTV sets are ...Your TV / screen / monitor requests, please!Hi all, So I just moved house and I'm looking for a new home for my retro tech collection. Previously I've run the trusty Spectrum through a tiny 4"…
... RGB SCART and composite video inputs (as well as having DVI ... and VGA inputs). Alternately you can get a ...Resident Evil 6Blimey! This looks like it might be a bit good! [youtube]BmC1lZeQad4[/youtube]
... 's got a machine gun, magnum, stun rod, Matilda (the 3 ...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…
... with a transistor as buffer. Inputs to the DAC are from ...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…
... over here have SCART/RGB inputs but lots have VGA)BIFROST* Advanced Programming - part 6The purpose of this demo is somewhat different from previous ones. Instead of teaching a new technique, the main goal here is to demonstrate how much…
... for anything other than the lightgun, so it would be an ...Edge connector breakout board/level translator boardFor a new project I'm thinking of working on (gah, too many projects...) I'm going to be making a new edge connector breakout board. Basically what …
... .3v chip with 5v tolerant inputs), it'll be more versatile ...RF TuningWhat is the actual RF frequency that the Spectrum +3 uses? Thanks
... with composite & s-video inputs, that can handle PAL and ...Semi-Dead Spectrum - Help RequestedI have finally got my hands on my two old Spectrums - neither of which work, but ideally I hope to get both of them working again. Spectrum number o…
... and reading the ULA keyboard inputs you can tell which keys ... you have to read the inputs eight times each with a ... -68 pull the 5 keyboard inputs up to 5 volts to ...semi dead speccy 48k who can helpHi forum , i am busy recovering a 48 k speccy issue 3 board unit. With the help of a more experienced spectrum user from the uk , i managed to get…
... , so the /CE and /CS inputs have to be ORed and ...semi dead speccy 48k who can helpHi forum , i am busy recovering a 48 k speccy issue 3 board unit. With the help of a more experienced spectrum user from the uk , i managed to get…
... 2 (and not 3) enable inputs. Would seem like a silly ... combinations for /MREQ, A14/A15 inputs, see what /ROMCS output does ...ZX Spectrum Light Gun - PROGRAMMINGAmongst some items I recently acquired was some information on the Spectrum Light Gun. Amongst this is a bit of hand-written paper which gives the i…
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Unfortunately the Sinclair Magnum won't work with LCD ...ZX Spectrum Light Gun - PROGRAMMINGAmongst some items I recently acquired was some information on the Spectrum Light Gun. Amongst this is a bit of hand-written paper which gives the i…
... /> Have you seen the speccy lightgun version of Operation Wolf? It ...ZX Spectrum Light Gun - PROGRAMMINGAmongst some items I recently acquired was some information on the Spectrum Light Gun. Amongst this is a bit of hand-written paper which gives the i…
... was pretty much the same lightgun for the ST and that ...Revisiting Spectrum CPU clock regenerationWarning: This post will be a bit nerdy :-) Some time ago, I experimented with phase locked loop circuits as a possible way to regenerate the Spectru…
... still manage to drive TTL inputs fine).
The /CLK ...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 …
... the ULA A14 and A15 inputs was needed (to fix a ...I am currently playing......Don't know if there's been a thread like this, but I can't find one.... Having seen all the different threads asking people if they've played such a…
... him up royally with the magnum, he dropped like a crackwhore ...I am currently playing......Don't know if there's been a thread like this, but I can't find one.... Having seen all the different threads asking people if they've played such a…
... since? I do have a Magnum, a machine gun, a rifle ...The Shameless Blog Plugging ThreadThought I would create a thread purely to shamelessly plug my Blog...I've just spent the best part of 10 hours putting the last couple of posts toget…
... giant CRT monitor and a lightgun you'll have to play ...I am currently playing......Don't know if there's been a thread like this, but I can't find one.... Having seen all the different threads asking people if they've played such a…
... ? I've built some custom Magnum bullets, and I only got ... I have roughly 70 regular Magnum bullets :D
So ...
