I am trying to integrate EzSDK based software with a DM816x chip with revision 2.0 silicon. I followed the instructions in the reference manual and datasheet to enable the two discrete sync signals on pins AL9 and AR8. Now I am using sysfs calls in Linux to configure the VPSS to output these syncs.
After some trial and error as well as some research it appears the sysfs options for the HDCOMP at /sys/devices/platform/vpss/display3/outputs are only component, svideo, or composite and not triplediscrete as with display1 for example.
Does this mean it is not possible to setup the system such that the HDCOMP DAC produces an RGB signal that can be paired with syncs on AL9 and AR8 to implement a VGA output? Currently I am seeing a component type signal on RGB and nothing on the sync lines when watching them on a scope.