12-08-2014 09:01 AM
Hi all.I want to know that the setting about dpa_initial_phase (value:0 45 90 135 180 225 270 315 360) means the DPA circuit block will select a fixed shift phase(dpa_initial_phase) to sample rx data from alt_lvds_rx or DPA will select a better phase clock to sample rx data...? Does anyone know something about dpa_initial_phase setting ? Please share it to me . Thank you!:) pofeng
12-08-2014 03:38 PM
I think if you knew the relationship between clock and data(many cases you don't), you could have it start in a selection that's correct. Maybe that reduces the DPA lock time? Not sure.