A case has been seen where a false Place 30-143 error was reported for the xc7a200tiffg1156-1L device: [Place 30-143] Sub-optimal placement for an IBUFDS / GT component pair. If this sub optimal condition is acceptable for this design, you may use the CLOCK_DEDICATED_ROUTE constraint...
N Y Place & Route X13422 图 1-3 : 实现快速收敛的设计方法 如能够通过正时序裕度 (positive margin) 或相对较小的负时序裕度 (negative margin) 满足设计目标,那么综合部分可 视为完成.例如,如果综合后未能满足时序要求,那么布局布线结果也不太可能满足时序要求.然而,即便时序得不 到满足,您仍然可以继续开展...
The place-and-route tools can fix most reasonable timing violations, but they cannot fix fundamental design issues that make timing closure impossible. RECOMMENDED: Revisit the RTL to reduce the number of logic levels on the violating paths and to clean up the clock trees in order to use ...
<Step Id="place_design"/> <Step Id="post_place_power_opt_design"/> <Step Id="phys_opt_design"/> <Step Id="route_design"/> <Step Id="post_route_phys_opt_design"/> <Step Id="write_bitstream"/> </Strategy> <GeneratedRun Dir="$PRUNDIR" File="gen_run.xml"/> <Rep...
Following that, ‘place_design’ is responsible for positioning the optimized design onto the FPGA hardware resources, while ‘phys_opt_design’ focuses on optimization with regard to physical placement. Afterward, ‘route_design’ manages routing, and the ‘write_bitstream’ stage generates the BIT...
Following that, ‘place_design’ is responsible for positioning the optimized design onto the FPGA hardware resources, while ‘phys_opt_design’ focuses on optimization with regard to physical placement. Afterward, ‘route_design’ manages routing, and the ‘write_bitstream’ stage generates the BIT...
Description A case has been seen where a false Place 30-143 error was reported for the xc7a200tiffg1156-1L device: [Place 30-143] Sub-optimal placement for an IBUFDS / GT component pair. If this sub optimal condition is acceptable for this design, you may use the CLOCK_DEDICATED_ROUTE...