Search found 1794 matches

by exxos
Fri Oct 13, 2017 9:13 pm
Forum: PSU (power supplies)
Topic: Discharging capacitors, PSU-testing with dummy loads
Replies: 23
Views: 2115

Re: Discharging capacitors, PSU-testing with dummy loads

You've already done several very nice guides, so this will be more of a "practical" guide on how I recapped the PSU, not explaining how it works etc. I'll try to get it done sometime soon. I think it helps anyway for people other than myself to write these guides, at least from a more user's point ...
by exxos
Fri Oct 13, 2017 9:06 pm
Forum: CHAT FORUM
Topic: Why Commodore failed (YouTube Interview)
Replies: 3
Views: 356

Re: Why Commodore failed (YouTube Interview)

Looks like they had some pretty ambitious design goals there! Looks like they were looking at 64-bit. Atari beat them to it with the Jaguar :P Saying that, I suppose was Atari folks are fortunate that Atari managed to get the Falcon out when they did. I mean they were basically going bankrupt at the...
by exxos
Fri Oct 13, 2017 8:45 pm
Forum: NEWS & ANNOUNCEMENTS
Topic: UBE VIDEO ADAPTER NOW IN STOCK
Replies: 44
Views: 4178

Re: UBE VIDEO ADAPTER NOW IN STOCK

Only four left ! So basically all sold in under 24 hours again. I have been talking to Urban about selling these in kit form for those who want to assemble them themselves. I have also been talking to him about a slight redesign, with the intention of myself making some up at some point in the futur...
by exxos
Fri Oct 13, 2017 8:42 pm
Forum: CHAT FORUM
Topic: The "Things I never do again" - Thread :)
Replies: 23
Views: 1456

Re: The "Things I never do again" - Thread :)

Silly things I do, still, not learning: cutting my fingers. Even with blunt objects. My fingers always get cut by stuff when I work. I don't even count anymore, it's become normal. Recently I posted a picture of my hands, unharmed, without a scratch, after twiddling a lot of things. People reacted ...
by exxos
Fri Oct 13, 2017 8:39 pm
Forum: PSU (power supplies)
Topic: Discharging capacitors, PSU-testing with dummy loads
Replies: 23
Views: 2115

Re: Discharging capacitors, PSU-testing with dummy loads

so I attached it to the computer and what do you know, the display output looked a whole lot better! The picture was "stronger" meaning more contrasty, perhaps even a little sharper looking. The white in the monochome display now looks more white (not slightly grayish as before), so I must have don...
by exxos
Fri Oct 13, 2017 8:18 pm
Forum: MEMBER BLOGS
Topic: Boosting STFM: 16MHz bus, 64MHz Shifter
Replies: 116
Views: 6487

Re: Boosting STFM: 16MHz bus, 64MHz Shifter

BTW, it seems GEMbench cannot save screenshots in "low" res ... ;) (Greyed out) Yeah, GB6 does not run in low res :) obviously different screen detection routine there, damn my lazy coding ;) We can't do anything about GLUE and its counting of lines - but we have full control over DE. It's trivial ...
by exxos
Fri Oct 13, 2017 8:04 pm
Forum: MEMBER BLOGS
Topic: Boosting STFM: 16MHz bus, 64MHz Shifter
Replies: 116
Views: 6487

Re: Boosting STFM: 16MHz bus, 64MHz Shifter

:bravo: All the clocks should be in sync on a stock machine. Though I think the shifter inverters the 16mhz output. This will mean the MMU is actually out of sync with the shifter clock, and so will the CPU clock etc down the line. All this won't be a problem when its all routed though a PLD :) Fant...
by exxos
Fri Oct 13, 2017 3:27 pm
Forum: MEMBER BLOGS
Topic: Boosting STFM: 16MHz bus, 64MHz Shifter
Replies: 116
Views: 6487

Re: Boosting STFM: 16MHz bus, 64MHz Shifter

Thinking out loud here...

Could we not re-generate the syncs and rebuild a higher vertical resolution ? We have control over DE but if we could double the vertical sync speed as well..

Maybe no reason to start the frame earlier and gain a few extra pixels in the borders as well ?
by exxos
Fri Oct 13, 2017 12:05 pm
Forum: FLOPPY DRIVES KITS & UPGRADES
Topic: Choosing between three Sony MPF-920 drives
Replies: 35
Views: 2441

Re: Choosing between three Sony MPF-920 drives

From what I remember proper "atari" drives set WP low when the motor stops, forcing media change. Though as a lot of drives don't do that, I emulated it on the V6 kit. If you could check WP on the 920 with and without soldering over that switch then we should know if that is the case with that drive...
by exxos
Fri Oct 13, 2017 8:18 am
Forum: FLOPPY DRIVES KITS & UPGRADES
Topic: Choosing between three Sony MPF-920 drives
Replies: 35
Views: 2441

Re: Choosing between three Sony MPF-920 drives

I never played around with CTIN. Though what is it supposed to do ? I mean TOS needs to know the disk has changed, pin 34 is not used on the MSTE or STE from what I can see. So bridging over it would do nothing. The ST hardware does not support the signal. Would need the data sheet for the floppy co...