Hello. I don't see any replies on this, but I'm wondering if you figured anything out. I have the same question. I just got the Giga R1 WiFi and have been writing DAC0,1 with unique data, observing the waves on the scope in X-Y mode (switch out the timebase and use the vert amp to drive the x-axis of the scope). DAC0,1 must be in sync, and sometimes they are not. That led me to looking at stereo audio programming using the DACs as that would require coding resulting in synchronization. Thanks.