Manual Inspecta Software

2.4.5.1 init928 (gmode)
Description: The graphic controller will be initialized for the requested resolution and
color. 1MB of video RAM is sufficient.
Parameters: gmode == 0 for 640 x 480 x 8 resolution
== 1 for 800 x 600 x 4 resolution
== 2 for 800 x 600 x 8 resolution
== 3 for 1024 x 768 x 4 resolution
== 4 for 1024 x 768 x 8 resolution
== 5 for 640 x 480 x 24 resolution
== -1 VGA mode 3 ( 80 x 25 color characters )
Returns: --
Example: main ();
{
init928 ( 0 ); /* Init to 640*480*8bit */
2.4.5.2 palette928 (palette)
... // do frame grabbing & image processing here
/* end of programme */
vmfg_isr ( 0 ) // switch off interrupt & restore vector
init928 ( -1 ); // select vga mode 3
}
The ‘palette’ parameter has the following meanings
palette == 0 -> linear 8 bit greyscale with lsb two bits overlay:
overlay = 0 -> black
overlay = 1 -> red
overlay = 2 -> green
overlay = 3 -> white
palette == 1 -> 3/3/2 red/green/blue 256 color palette
palette == 2 -> expanded 8 bit greyscale
Software
INSPECTA Software Rev. 1.47 Page 49