Hoi,
Volgende heb ik gevonden op een webside.(http://www.sput.nl/hardware/tv-x.html)
Modelines
For the European 625 line (575 visible lines) TV standard a modeline looks like this:
Modeline "736x575i" 14.16 736 760 824 904 575 580 585 625 interlace -hsync -vsync
Officially the horizontal resolution is 767 (4 / 3 * 575) pixels with a clock of 14.76 MHz. However, since the clock used is 14.16 MHz, I reduced the horizontal values proportional to 14.16 / 14.76 (and rounded them to the nearest multiple of
.
14.16 MHz / 904 yields a horizontal deflection frequency of 15.664 kHz, which should work on most EU (15.625 kHz) (and US, 15.75 kHz) TV's.
If your VGA card's clock is different from 14.16 MHz, you need to change the horizontal values.
You can probably use the following modeline for the US 525 line (485 visible lines) standard:
Modeline "736x485i" 14.16 736 760 824 904 485 491 496 525 interlace -hsync -vsync
If you want to make a 640x480 screen with a black border you can you use this line:
Modeline "640x480i" 14.16 640 712 776 904 480 532 537 625 interlace -hsync -vsync
You can centre it by altering the 2nd and 3rd horizontal and vertical values (this example shifts the picture to the left):
Modeline "640x480i" 14.16 640 728 792 904 480 532 537 625 interlace -hsync -vsync
You can make a non interlaced signal with this modeline:
Modeline "736x288" 14.16 736 760 824 904 288 290 292 312 -hsync -vsync
Het dient om VGA-SCART aansluiting te inirializeren.
Doch ik begrijp er niet veel van . Kan mij iemand uitleggen wat ik eigenlijk moet doen?
Volgende heb ik gevonden op een webside.(http://www.sput.nl/hardware/tv-x.html)
Modelines
For the European 625 line (575 visible lines) TV standard a modeline looks like this:
Modeline "736x575i" 14.16 736 760 824 904 575 580 585 625 interlace -hsync -vsync
Officially the horizontal resolution is 767 (4 / 3 * 575) pixels with a clock of 14.76 MHz. However, since the clock used is 14.16 MHz, I reduced the horizontal values proportional to 14.16 / 14.76 (and rounded them to the nearest multiple of
.14.16 MHz / 904 yields a horizontal deflection frequency of 15.664 kHz, which should work on most EU (15.625 kHz) (and US, 15.75 kHz) TV's.
If your VGA card's clock is different from 14.16 MHz, you need to change the horizontal values.
You can probably use the following modeline for the US 525 line (485 visible lines) standard:
Modeline "736x485i" 14.16 736 760 824 904 485 491 496 525 interlace -hsync -vsync
If you want to make a 640x480 screen with a black border you can you use this line:
Modeline "640x480i" 14.16 640 712 776 904 480 532 537 625 interlace -hsync -vsync
You can centre it by altering the 2nd and 3rd horizontal and vertical values (this example shifts the picture to the left):
Modeline "640x480i" 14.16 640 728 792 904 480 532 537 625 interlace -hsync -vsync
You can make a non interlaced signal with this modeline:
Modeline "736x288" 14.16 736 760 824 904 288 290 292 312 -hsync -vsync
Het dient om VGA-SCART aansluiting te inirializeren.
Doch ik begrijp er niet veel van . Kan mij iemand uitleggen wat ik eigenlijk moet doen?
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