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I update the website with all corrected data and files.ġ8/02/18 New fault: ZX with white screen. There is no guarantee that what you get will even be a working chip.Set Grabacion made by indescomp for ZX81.Ĭorrecting this error, the board designed by Merlinv works perfectly. Never mind that they have been out of production for many, many years (in some cases over twenty years). Then new screen printed markings are applied, often to give the impression that they are new chips. The old markings are either cleaned off, sanded off or painted over. They are reworked to clean up and re-tin the pins. On trading sites, any hard to get chips are often cleaned up ‘pulls’ taken from old equipment. So there are no new AY-3-8910, no new AY-3-8912 or any other new chips in the same range. Not long after, production of these chips was discontinued. The manufacturer that developed and produced the AY-3-8910 range of sound chips was bought my Microchip a long time ago. In many respects the Yamaha version is a bit better. The Atari ST range uses a Yamaha YM2149F. Proper YM2149 chips (and the related family of similar sound chips) were manufactured by or on behalf of Yamaha. Yes, I should have the +2A/+3 PSU replacements available soon, but there was way too much work during the last months.įortunately the new production line is now running, so more time is coming! If it’s interesting, I would design another version with features that I will discuss in forums. I need to test the DivGMX to find out what it is capable of. That breakout board does have proper protection for the FPGA though, which some think the Next lacks, which could cause defects, I’m not sure.
#Speccy power supply full
The developers of those are still working on things like HDMI / DVI / DP, so most probably it will come.īut if someone would want to use lets say a PlusD interface or something, a breakout board should be added to get a full edge connector. They’re fast and proper ZX Spectrum clones, and have SD and advanced video outputs (though not digital yet) available at the back.īut those additional connectors are put at the edge connector slot in the case, so no full edge connector by default. Well, I was discussing this on Facebook and I think the UNO XL or ZX-GO have the best of both worlds:
#Speccy power supply archive
TAP archive will not load from Microdrive. Microdrive, but you still need some unwritten software tools to actually transfer. That could help with transferring to e.g.
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I am planning for a small interfaced that disables and enables ESXDOS by the push of a button. So another interface will not be able to take over. This is because the DivMMC copies the 48 BASIC ROM into its own RAM and keeps that paged in at all time. The DivMMC and many other interfaces won’t work with Interface1/Microdrive, PlusD, Disciple, Multiface or other interfaces that have their own ROM. Not sure what the possibilities are with that, probably no +3 floppy disk features.Īnd that customized ROM won’t be legal to distribute with DivMMC interfaces, so end-user only.
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I read that there is a customized 128 BASIC ROM that can be activated with the ESXDOS 0.8.6 RC1 release. Since there isn’t much memory space for the ESXDOS developers to work with, it’s not easy or maybe simply impossible to add support for these ROMs. The 128 and +3 BASIC ROMs have completely different entrance points for routines compared to the 48 BASIC ROM.