AMD suggests keeping trace delays below 1.30 ns.
Ensure VIH/VIL and VOH/VOL levels are met for both the Versal and UART devices:
- Versal device values can be found in the PSIO Levels section of the Versal adaptive SoC data sheets.
- Be sure to choose the correct levels for the voltage used (i.e., LVCMOS18, LVCMOS33).