Welcome, Guest. Please login or register.

Author Topic: HDMI output for A1200?  (Read 17413 times)

Description:

0 Members and 1 Guest are viewing this topic.

Offline kvasir

  • Full Member
  • ***
  • Join Date: Aug 2004
  • Posts: 249
    • Show only replies by kvasir
    • http://watertonian.freeiz.com/1200brag/index.html
--
Amiga 1200T 68060 50MHZ 192MB Fast
 40GB IDE, 100MB Zip, CD/RW, DVD/Rom
 Mediator+ 4MBSVGA, Soundblaster, 100mbps Ethernet
 Subway USB+ endless list of gadgets :-D
My full specs
 

Offline freqmax

  • Hero Member
  • *****
  • Join Date: Mar 2006
  • Posts: 2179
    • Show only replies by freqmax
Re: HDMI output for A1200?
« Reply #45 on: September 18, 2012, 02:30:36 PM »
Quote from: orange;708582
iirc, the HDMI thing wouldn't work because Amiga does D/A conversion inside a chip. so you'd need to do a A/D conversion for HDMI, and that sux,


And if you had actually read the thread it would been obvious that the idea is to piggyback the D/A chip ADV101KP30.
 

Offline orange

  • Hero Member
  • *****
  • Join Date: Dec 2003
  • Posts: 2797
    • Show only replies by orange
Re: HDMI output for A1200?
« Reply #46 on: September 18, 2012, 02:30:51 PM »
@kvasir
better look for RGB->HDMI

@frekmax
right, and if you had thoroughly read the thread, you'd know how to build one yourself (by now) :P
« Last Edit: September 18, 2012, 02:39:41 PM by orange »
Better sorry than worry.
 

Offline bbond007

  • Hero Member
  • *****
  • Join Date: Mar 2009
  • Posts: 1517
    • Show only replies by bbond007
Re: HDMI output for A1200?
« Reply #47 on: September 18, 2012, 03:59:41 PM »
Quote from: kvasir;708588
Been thinking of trying one of these
http://www.amazon.com/Expedited-LinkStyle-Composite-Converter-Interface/dp/B003AOPADA/ref=wl_it_dp_o_pC_nS_nC?ie=UTF8&colid=6T8O6D60KIS4&coliid=I1DZCDHZK5LNYV

you would probably be better off with a SCART->HDMI for better quality. Also SVIDO requires yet another adapter, and all the SCART would need is a cable...

Indivision is really worth the money and WB really looks great in 1280x720@4bpp :)

Hopefully this HDMI project is a success... Indivisions will sell out for sure....
« Last Edit: September 18, 2012, 04:06:06 PM by bbond007 »
 

Offline lassie

  • Hero Member
  • *****
  • Join Date: Aug 2012
  • Posts: 637
    • Show only replies by lassie
Re: HDMI output for A1200?
« Reply #48 on: September 18, 2012, 09:15:18 PM »
Quote from: leirbag28;388759
@CarlK


 I believe itis possible, but in a much easier way than you think.



@meega

You dont have to run Workbench in SuperHiRes Mode. You can just run it in Hires Interlaced and upscale it somewhat.

The easiest way Ive seen to get HDMI on Amiga is via and Upscale DVD player with S-Video inputs...........My DVD Player upscales my Amiga Output and outputs it to my FLickerFixing Projector via HDMI.........it looks the same as S-video but blurry somewhat because I guess the upscaler expects pixelization and overcompensates.

Therefore HDMI is possible on the Amiga via a simple scandoubler type looking device that attaches to the RGB port and does the Upscaling, yet supports SuperHires interlaced mode as well if someone chose to use that.

Personally I use SuperHiresMode for Text credits and scrolling credits on Video.........looks freakin awesome.


Sometimes getting too technical about things makes it seem impossible.  but it is easily achievable (and by that I dont mean that it is easy creating the hardware) I just mean the concept is easy.

The Amiga itself doesnt have to have a native HDMI output, because then it would need modifications and slow down the system...........


Hi i also have one of those boxes that can be used with HDMI. but it gets very blurry as you said. it is a shame because it did cost a lot.
Amiga 4000 030 18 MB ram. 16 Gb HD.
Amiga 1200 030 34 MB ram. 8 Gb HD.
Amiga 1200 Tower Apollo 1240
Amiga 2000 030. 9 MB ram. 1 Gb HD.
Amiga 2000 68000 5 MB ram. 500 MB HD.
Amiga 2000 68000 9 MB ram. 1 Gb HD.
Amiga 600 4 MB ram. 4 GB HD.
Amiga 600 1 MB ram. 60 MB HD.
Amiga 500 1 MB ram.
Amiga 500 Plus
Amiga CD32
Amiga CD32
Commodore 64
Commodore 64C
Commodore 128
Commodore 128D
 

Offline Zac67

  • Hero Member
  • *****
  • Join Date: Nov 2004
  • Posts: 2890
    • Show only replies by Zac67
Re: HDMI output for A1200?
« Reply #49 on: September 18, 2012, 10:21:12 PM »
Quote
you would probably be better off with a SCART->HDMI for better quality./QUOTE]

... only if the adapter converts the RGB part. Composite will suck.
 

Offline lassie

  • Hero Member
  • *****
  • Join Date: Aug 2012
  • Posts: 637
    • Show only replies by lassie
Re: HDMI output for A1200?
« Reply #50 on: September 18, 2012, 11:51:18 PM »
Quote from: Zac67;708629
Quote
you would probably be better off with a SCART->HDMI for better quality./QUOTE]

... only if the adapter converts the RGB part. Composite will suck.


Yes that could be nice, but it only takes Composite the one i have now :( why is it SCART is better than Composite? is it something to do with the signal?
Amiga 4000 030 18 MB ram. 16 Gb HD.
Amiga 1200 030 34 MB ram. 8 Gb HD.
Amiga 1200 Tower Apollo 1240
Amiga 2000 030. 9 MB ram. 1 Gb HD.
Amiga 2000 68000 5 MB ram. 500 MB HD.
Amiga 2000 68000 9 MB ram. 1 Gb HD.
Amiga 600 4 MB ram. 4 GB HD.
Amiga 600 1 MB ram. 60 MB HD.
Amiga 500 1 MB ram.
Amiga 500 Plus
Amiga CD32
Amiga CD32
Commodore 64
Commodore 64C
Commodore 128
Commodore 128D
 

Offline freqmax

  • Hero Member
  • *****
  • Join Date: Mar 2006
  • Posts: 2179
    • Show only replies by freqmax
Re: HDMI output for A1200?
« Reply #51 on: September 19, 2012, 03:17:01 AM »
It's to do with that seperate signals för Red-Green-Blue and sync is way better than just push it all into the same signal wire. But SCART provides both RGB, S-video, Composite and users don't really know which ones are used..

Oh, and a signal path of D/A -> A/D is not better than a fully digital path.
 

Offline lassie

  • Hero Member
  • *****
  • Join Date: Aug 2012
  • Posts: 637
    • Show only replies by lassie
Re: HDMI output for A1200?
« Reply #52 on: September 19, 2012, 06:50:17 PM »
Quote from: freqmax;708651
It's to do with that seperate signals för Red-Green-Blue and sync is way better than just push it all into the same signal wire. But SCART provides both RGB, S-video, Composite and users don't really know which ones are used..

Oh, and a signal path of D/A -> A/D is not better than a fully digital path.


I have a SCART Adaptor where i can put the Red-White-Yellow cable from the Amiga into, and then i can put it in the SCART on my TV. Will that give me better picture quality or is it still not real SCART?
Amiga 4000 030 18 MB ram. 16 Gb HD.
Amiga 1200 030 34 MB ram. 8 Gb HD.
Amiga 1200 Tower Apollo 1240
Amiga 2000 030. 9 MB ram. 1 Gb HD.
Amiga 2000 68000 5 MB ram. 500 MB HD.
Amiga 2000 68000 9 MB ram. 1 Gb HD.
Amiga 600 4 MB ram. 4 GB HD.
Amiga 600 1 MB ram. 60 MB HD.
Amiga 500 1 MB ram.
Amiga 500 Plus
Amiga CD32
Amiga CD32
Commodore 64
Commodore 64C
Commodore 128
Commodore 128D
 

Offline freqmax

  • Hero Member
  • *****
  • Join Date: Mar 2006
  • Posts: 2179
    • Show only replies by freqmax
Re: HDMI output for A1200?
« Reply #53 on: September 19, 2012, 07:05:58 PM »
I assume it's Red-White-Yellow <=> Right-Left (sound) -Yellow (composite video) so it's kind of the worst signal quality used with SCART. But's it's still SCART. Because that standard is a collection of possible signal standards.

So yes, it is SCART. But not optimaly used.
 

Offline orange

  • Hero Member
  • *****
  • Join Date: Dec 2003
  • Posts: 2797
    • Show only replies by orange
Re: HDMI output for A1200?
« Reply #54 on: September 19, 2012, 08:15:24 PM »
Quote from: lassie;708703
I have a SCART Adaptor where i can put the Red-White-Yellow cable from the Amiga into, and then i can put it in the SCART on my TV. Will that give me better picture quality or is it still not real SCART?


you need to check if that SCART connector on TV can take RGB signal. some TVs have more than one SCART. look in the manual. there is pinout for making 'RGB cable' on EAB.
Better sorry than worry.
 

Offline lassie

  • Hero Member
  • *****
  • Join Date: Aug 2012
  • Posts: 637
    • Show only replies by lassie
Re: HDMI output for A1200?
« Reply #55 on: September 19, 2012, 08:47:29 PM »
Quote from: freqmax;708704
I assume it's Red-White-Yellow <=> Right-Left (sound) -Yellow (composite video) so it's kind of the worst signal quality used with SCART. But's it's still SCART. Because that standard is a collection of possible signal standards.

So yes, it is SCART. But not optimaly used.


   
I have 2 SCART to Amiga RGB Cables but when i use them on my 43 inch plasma screen, i get worse picture than when i use Composite cable. I find that very strange
Amiga 4000 030 18 MB ram. 16 Gb HD.
Amiga 1200 030 34 MB ram. 8 Gb HD.
Amiga 1200 Tower Apollo 1240
Amiga 2000 030. 9 MB ram. 1 Gb HD.
Amiga 2000 68000 5 MB ram. 500 MB HD.
Amiga 2000 68000 9 MB ram. 1 Gb HD.
Amiga 600 4 MB ram. 4 GB HD.
Amiga 600 1 MB ram. 60 MB HD.
Amiga 500 1 MB ram.
Amiga 500 Plus
Amiga CD32
Amiga CD32
Commodore 64
Commodore 64C
Commodore 128
Commodore 128D
 

Offline orange

  • Hero Member
  • *****
  • Join Date: Dec 2003
  • Posts: 2797
    • Show only replies by orange
Re: HDMI output for A1200?
« Reply #56 on: September 19, 2012, 09:11:39 PM »
Quote from: lassie;708710
I have 2 SCART to Amiga RGB Cables but when i use them on my 43 inch plasma screen, i get worse picture than when i use Composite cable. I find that very strange


are you sure TV is in 'RGB' mode? I suggest you build this one:
http://eab.abime.net/showthread.php?t=47281
Better sorry than worry.
 

Offline lassie

  • Hero Member
  • *****
  • Join Date: Aug 2012
  • Posts: 637
    • Show only replies by lassie
Re: HDMI output for A1200?
« Reply #57 on: September 19, 2012, 09:22:11 PM »
Quote from: orange;708711
are you sure TV is in 'RGB' mode? I suggest you build this one:
http://eab.abime.net/showthread.php?t=47281


Hi do you mean there are something i need to change in my TV settings?
Amiga 4000 030 18 MB ram. 16 Gb HD.
Amiga 1200 030 34 MB ram. 8 Gb HD.
Amiga 1200 Tower Apollo 1240
Amiga 2000 030. 9 MB ram. 1 Gb HD.
Amiga 2000 68000 5 MB ram. 500 MB HD.
Amiga 2000 68000 9 MB ram. 1 Gb HD.
Amiga 600 4 MB ram. 4 GB HD.
Amiga 600 1 MB ram. 60 MB HD.
Amiga 500 1 MB ram.
Amiga 500 Plus
Amiga CD32
Amiga CD32
Commodore 64
Commodore 64C
Commodore 128
Commodore 128D
 

Offline orange

  • Hero Member
  • *****
  • Join Date: Dec 2003
  • Posts: 2797
    • Show only replies by orange
Re: HDMI output for A1200?
« Reply #58 on: September 19, 2012, 09:31:43 PM »
Quote from: lassie;708712
Hi do you mean there are something i need to change in my TV settings?


well, it depends. some old TVs let you select RGB/S-Video/Composite on the remote with AV button. but nowadays, you probably need good cable that supplies enough voltage on (infamous) pin 16 of SCART connector ( http://en.wikipedia.org/wiki/Scart ) so that TV automagically switches to RGB. other than that, you might need some resistors in signal lines. check out that thread.
Better sorry than worry.
 

Offline kvasir

  • Full Member
  • ***
  • Join Date: Aug 2004
  • Posts: 249
    • Show only replies by kvasir
    • http://watertonian.freeiz.com/1200brag/index.html
Re: HDMI output for A1200?
« Reply #59 on: November 16, 2012, 01:45:21 AM »
Quote from: bbond007;708607
you would probably be better off with a SCART->HDMI for better quality. Also SVIDO requires yet another adapter, and all the SCART would need is a cable...

Indivision is really worth the money and WB really looks great in 1280x720@4bpp :)

Hopefully this HDMI project is a success... Indivisions will sell out for sure....


SCART would be nice, just a bit impractical for the side of the Atlantic I live on.. RGB->HDMI would be a better bet. Didn't think that would work, though, thought HDMI was digital? Also, not sure if the TV I have would sync HDMI down to the 50hz that most games I like insist upon.. Emerson's tech support line is usually somebody who doesn't know s**t saying the TV doesn't support Amiga's, or any computer without a VGA connector (even an amiga with rgb->vga connector running dbl-ntsc, which I know better...)
--
Amiga 1200T 68060 50MHZ 192MB Fast
 40GB IDE, 100MB Zip, CD/RW, DVD/Rom
 Mediator+ 4MBSVGA, Soundblaster, 100mbps Ethernet
 Subway USB+ endless list of gadgets :-D
My full specs