PS1 Dev (ISA Style)

It's the horizontal frequency that's different, not vertical, though that can be different too. Modern graphics cards and PC monitors can handle anything from about H:31kHz/V:60Hz (standard 640x480 VGA) and higher, depeding on the monitor - I think my 17" CRT can go up to like H:80kHz and V:120Hz! 24kHz is only used on some proprietary video systems like some arcade boards, I think some computers like the X68000 maybe.

With TV sets, though they don't have that great a range. They can usually only take H freq's of around 15.625 (PAL/50Hz standard) to 15.750kHz (NTSC/60Hz standard). You need to buy/make some sort of downscan converter if you want to output standard 31kHz VGA or anything else. Modern TVs would just switch off if you put in anything too high or low; older ones may go pop...

*However*, many graphics cards are capable of outputting 15kHz video - only problems are most drivers won't allow this (though it's possible in Linux), and the way the sync is outputted from a VGA output is different to how TVs take it. With VGA cables, there's separate H and V sync lines, but TV sets (e.g. SCART sockets) commonly use "RGBS" - RGB and composite sync. There's ways of combining separate H and V sync into composite sync, but you need special ICs and stuff - I saw some guide on how to make a circuit on some Finnish website but can't remember where now. There's also the problem that not all graphics cards can output interlaced video (what standard TVs need) - I think most ATI ones can, IIRC.

Those AV outputs on that PS dev dealy outputs composite sync on pin 11. I think.

 

Ahh knew it was something along those lines cheers for clearing it up.

 

skido is a member of this forum so be a bit more polite :-D

and he seems to have a lot of money in the backhand i learned that on the hard way cause he bid me out on a long list of items =) but 997$ sounds a little like a typo

btw. is there still serious development going on for the psx ?

 

Yeah sorry, I learned that just after I posted the message.
I retract my statement.

I was just shocked because I was banking on winning the disks & discs so I can use my dev but no avail.

I don't think there's dev going on for the psx, only EA sports games, not much homebrew or anything like that, but that's why Skido wants that stuff, supposedly.
I guess that makes things more collectable.

It's only $997 because the previous bidder put $987 in and it automatically ups the bid by $10 at this stage.

Collector + Money = <-on my part
I guess I've just learned that!

Dragyth

 

Hey all

yep I am serious..

Although, don't worry on the disc. I put a high bid in so we all can have drivers. I know kevin needs the 2500 disc, which I have, and I also have the emulator disc. If I can win kevins auction I can put together a disc so we all can have a complete cd since finding these disc are a real pain i the neck.

The biggest problem with ps1 development is finding the darn drivers. hopefully this will end that for members of this board taht want to do ps1 development.

 

What about the documents, if you're bidding only for the drivers, could I buy the documents off you? =)
I have a Yaroze but I don't really know how to set this system up.

Cheers
Dragyth

 

yes! need the disc to setup the system

 

These documents will not hekp you with yaroze. Yaroze is a different system entirely.

 

No, I mean I have Yaroze, and all of the documents, I know how to use Yaroze but I need the documents for the main ps1 dev system.
I don't suppose setting up Yaroze is anything even remotely similar to the Dev?
HI_Ricky, I know you have the discs ;(
Can you email them to me? :smt042

Dragyth

 

No not even remotely similar.

When the dust settles from the auction and I get everything in. Let me see what I can do. I would suspect kevin would want the 2500 docs I have and since most docs are only a couple of pages let me see what I can do about scanning them in and putting them on the cd with the drivers

 

So, Macwest, any way I could buy the documents off you if you don't need them?
I reckon, because they're in a folder, that the pages aren't from the original Sony manual/s, probably photocopied or sent in by sony on their own but I can't be sure.

Cheers,
Dragyth

 

Yeah, neither of us even know what documents are there so when you recieve them, eh?
Give me time to gather money =)

 

Which boards do you have?

 

DTL-2000, it has two boards, the other one is something like CPU2.
You've owned the very same boards, ISA type.
Slightly later one with an outbox for the controllers instead of the D-sub on the controller lead.

 

Ack, I put in a $15 bid for the docs back when they were at $0.01 but it was gone in a few hours... if somebody has low-level info on the GPU and CD interface, I'd be glad to hear Don't want to use Psy-Q with my own projects.