Rastergraf
Installing Your Peritek Graphics Board 2-25
2.10 Using an Eclipse3 Board in a PowerPC
If the CPU's on-board firmware is VGA aware, it should initialize the
graphics board and use it as the system console. However, many PowerPC
(PPC) based computers don't have generic VGA support. Newer ones are
not "chrp" or "prep" compliant anymore, so they don't know about FCode.
Your best bet is to use a board with a VGA BIOS in it.
Otherwise, you will have to boot using a serial terminal and only after the
graphics software has been installed and run will you see anything.
2.11 Final Checks
If you are running in a PC, then you should get the usual PC displays. If
you have multiple graphics boards installed, only one will be initialized by
the BIOS. Once you have installed the Windows NT/2K/XP multihead
drivers and reboot, all screens will be initialized as the OS boots.
In the case of X Windows, your monitor should display a uniform stippled
raster and a cross-hair cursor, which is controlled by the mouse. If you
have multiple graphics boards installed, all screens will be initialized and
display the stipple once you have the server installed and running.
For SDL, demo programs are provided that may be run to put test patterns
on the screen(s).
Pictures!
Once you have a picture on the screen, you may need to adjust the width,
height, brightness, contrast, and hold controls on your monitor to get a
good, centered image. If these controls don’t adjust the image properly,
the parameters used to set the graphics timing registers might be wrong. If
you have any trouble with any part of the installation call or email
Rastergraf for assistance, or refer to Chapter 4.
