Hi,
Just to check, there is a signal to enable / disable the DVI controller on beagleboard.
If I put a device on the LCD header do I have to disable the DVI framer?
If so, can I use the DVI enable line as a ~enable line for the controller on my LCD header - so that either one or the other is enabled?
-Ian
You do not have to disable the framer, but it will save 100mA of power and most likely, it won’t be of much use anyway as the timings will be tough to match the LCD vs. a DVI-D ouput. You can certainly use the line to enable/disable the LCD interface and power. That was the reason is was brought out to the headers.
Gerald
Hi,
Just to check, there is a signal to enable / disable the DVI controller
on beagleboard.If I put a device on the LCD header do I have to disable the DVI framer?
If so, can I use the DVI enable line as a ~enable line for the
controller on my LCD header - so that either one or the other is enabled?
This is what I did for my interface and it seems to work. A nice side effect
is I save the 100mA going to the 410 chip. Another side effect is you can
gain an extra GPIOs if your panel doesn't require all the signals. Mine
didn't and I needed an extra GPIO.
The only gotcha is the line on the LCD header for enable/disabling of the 410
chip is at 3.3V not 1.8V like the rest of the signals.