Hi, everyone
I am a beginner of C6A8168.
I want to use the VGA port as the display interface, but I don't know how to make the settings.
I read the VPSS user guide in EZSDK.
HDMI port is using /dev/fb0,
I think VGA port and Component port are using /dev/fb1 for display , because they are using the same RGB pin in the circuit.
This file is a sample in ezsdk to show color bar on screen.
I try to run it on Arm, it worked and color bar showed on HDMI screen.
In document Vpss user guide, it said,
fb1 -- => graphics1 - - => hdcomp
so, I changed the device name "/dev/fb0" into "/dev/fb1"
no image output to my screen.
I checked the setting of hdcomp, it is same with default values.
Then I think maybe there is no memory for fb1 in TI81xxfb moudle,
but there is no insmod or modprobe command in the linux image.
Should I make a new linux image for this problem? or any other method to fix this problem?
I also found in this URL
It said that "EVM VGA output is not supported" in Features not supports part.
Is that mean I cannot use VGA port on C6A8168?
Waiting for your answers.
yours,
wang
