2efab23cd9
usb_data_interface.v: doppler_data_pending and cfar_data_pending were driven by two always blocks (CDC sync block set them, write FSM cleared them). Vivado DRC MDRV-1 flagged this as multiple drivers. Moved all set/clear logic into the write FSM always block using doppler_valid_ft and cfar_valid_ft edge wires. adc_clk_mmcm.xdc: changed set_false_path -from to -through for MMCM LOCKED pin (not a valid timing startpoint). Eliminates CRITICAL WARNING from Builds 19/20/21. 19/19 FPGA regression pass.