vga graphics
I've just made an adaptor to·connect a vga monitor to my own prop carrier board and I have got most of the vga demos working - I am still·amazed by what the·Prop can do (with the help of the brains behind the code of course)
I do no profess to knowing anything about graphic adaptors, vga signals, or video in general -·is there any better documentation for the·vga driver for example? - particularly as to what all the parameters are for.
I have half succeeded in getting the Graphics_Demo to work on the vga monitor by repalcing the tv object reference and using the vga parameter list. It took a while to figure out that I needed to set the vga_rate to 20_000_000 - even small changes to this value and it won't work at all, hence my request above. The display I get is not quite right with duplicate overlapping images but I can see what the image is supposed to look like.
Can the Graphics_Demo be made to work on vga properly·- does anyone have a modified version?
Paul
·
I do no profess to knowing anything about graphic adaptors, vga signals, or video in general -·is there any better documentation for the·vga driver for example? - particularly as to what all the parameters are for.
I have half succeeded in getting the Graphics_Demo to work on the vga monitor by repalcing the tv object reference and using the vga parameter list. It took a while to figure out that I needed to set the vga_rate to 20_000_000 - even small changes to this value and it won't work at all, hence my request above. The display I get is not quite right with duplicate overlapping images but I can see what the image is supposed to look like.
Can the Graphics_Demo be made to work on vga properly·- does anyone have a modified version?
Paul
·
Comments
Is there no good documentation anywhere for this?
But, you can find some if you look towards the bottom of the driver's file (in the assembly section)...
The 1024x768 VGA demo does use Graphics, but doesn't do the same images as the graphics demo.
I don't think anybody has converted the graphics demo to VGA....