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Adriano72
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  		   Posted 5/4/2008 4:15 AM (GMT -8)    Quote This PostAlert An Admin About This Post.
Hi all

I read in a previous thread that PAL TV often have problems displaying colours. As a matter of fact one of my TV works well, the othher (sony Trinitron) shouws all Black and White...

Tried to change _xinfreq, tried some values, no way.

I read that one should set the Propeller to output to PAL, does anybody know how to do it?

Thanks!

Adriano
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Coley
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  		   Posted 5/4/2008 4:52 AM (GMT -8)    Quote This PostAlert An Admin About This Post.
Hi Adriano,

What you are probably running is NTSC mode and one of your TV's just happens to be able to display it correctly.
It depends which TV driver the application is using as to whether or not it has a PAL mode.
Try the Parallax graphics demo from the object excange and change the TV Mode parameter to select NTSC or PAL
or look here for a modified TV driver that that gives a more stable PAL output.
forums.parallax.com/forums/default.aspx?f=25&m=240917

Regards,

Coley

PropGFX Forums - The home of the Hybrid Development System and PropGFX Lite

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Spork Frog
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  		   Posted 5/4/2008 5:43 AM (GMT -8)    Quote This PostAlert An Admin About This Post.
Hello Adriano!

The issue is mainly some of the ways the drivers operate as well as the frequency generators within the Prop, which leads to most drivers not outputting a 100% in-spec NTSC signal. Many PAL TV's and even some NTSC-based LCD screens have trouble decoding the signal, mainly the color component.

As you've realized, the best option is just to use a PAL video driver. However, not all video drivers here on the forums will support a PAL output mode, and some modifications or a seperate driver is needed.

I'd start here: forums.parallax.com/forums/default.aspx?f=25&m=242110

EDIT: Whoops, looks like Coley and I had the same idea here. Sorry about that.
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Adriano72
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  		   Posted 5/5/2008 6:02 AM (GMT -8)    Quote This PostAlert An Admin About This Post.
Thanks!

I'm going to look

Adriano
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JT Cook
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  		   Posted 5/5/2008 4:15 PM (GMT -8)    Quote This PostAlert An Admin About This Post.

Another way to check is to try my tetris game. It will work with either NTSC or PAL as well by changing one of the settings towards the top of the code.

http://forums.parallax.com/forums/default.aspx?f=33&m=228502

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Adriano72
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  		   Posted 5/8/2008 3:30 AM (GMT -8)    Quote This PostAlert An Admin About This Post.
I', going to donwload it immediately!!!!

Thanks, I'll let you know!

Adriano
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Adriano72
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  		   Posted 5/8/2008 11:43 PM (GMT -8)    Quote This PostAlert An Admin About This Post.
It WORKS!!! I see colors on my PAL TV!! Thanks and congratulations for your very very nice game!

Adriano
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Baggers
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  		   Posted 5/10/2008 4:38 AM (GMT -8)    Quote This PostAlert An Admin About This Post.
glad you got it working on your PAL TV :) are you going to do any games? if we we'll look forward to seeing them on here :)

Baggers.

http://www.propgfx.co.uk/forum/ home of the PropGFX Lite
 

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Adriano72
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  		   Posted 5/11/2008 7:36 AM (GMT -8)    Quote This PostAlert An Admin About This Post.
Thank you for your nice invitation Baggers! Yes, the project is to write games, or better to learn writing them! I'm on the first steps of the wonderful (and huge) manual by Andrè... so I guess some months (and many questions from me) are going to pass before seeing something moving on the screen done by me....!

Cheers!

Adriano
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Baggers
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  		   Posted 5/11/2008 11:37 PM (GMT -8)    Quote This PostAlert An Admin About This Post.
lol, no worries, you've gotta start somewhere eh? :) and where better than this forum :P

http://www.propgfx.co.uk/forum/ home of the PropGFX Lite
 

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Adriano72
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  		   Posted 5/12/2008 1:09 AM (GMT -8)    Quote This PostAlert An Admin About This Post.
:) :)
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