Xilinx Vivado 20202 Fixed May 2026

vivado -mode batch -source my_script.tcl Avoid source inside interactive mode for loops. Instead, wrap your Tcl in a proc and call it once. Symptom: write_checkpoint -force drops your XDC constraints. Fix: Always reapply constraints after checkpoint:

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Introduction: The Love-Hate Relationship with Vivado 2020.2 vivado -mode batch -source my_script