The CadenceAllegroFPGA System Planner offers a complete, scalable technology for FPGA/PCB co-design that allows users to create an ideal correct-by-construction pin assignment. FPGA pin assignment is synthesized automatically based on user-specified, interface-based connectivity, FPGA device pin assignment rules, and placement of FPGAs on the PCB. With automatic pin-assignment synthesis, users avoid manual error-prone processes while shortening the time to create initial pin assignment that accounts for FPGA placement on the PCB. This unique placement-aware pin assignment approach eliminates unnecessary physical design iterations that are inherent in manual approaches while shortening the design cycle time.