set_clock_latency 1.2 –rise [get_clocks CLK1] set_clock_latency 0.9 –fall [get_clocks CLK2] 设定时钟”CLK1” 最早上升下降滞后0.8, 最晚上升下降滞后0.9 set_clock_latency 0.8 –source –early [get_clocks CLK1] set_clock_latency 0.9 –source –late [get_clocks CLK1] 2.2.4. Set_propa...
2.2. Design optimization constraints 2.2.1. Create_clock 2.2.2. create_generated_clock 2.2.3. Set_clock_latency 2.2.4. Set_propagated_clock 2.2.5. Set_clock_uncertainty 2.2.6. Set_input_delay 2.2.7. Set_output_delay 2.2.8. Set_max_area 3. Other commands 3.1. set_clock_groups 3.2. ...
Latency::delay(const RiseFall *rf, const MinMax *min_max) { float latency; bool exists; delays_.value(rf, min_max, latency, exists); if (exists) return latency; else return 0.0; } void ClockLatency::delay(const RiseFall *rf, const MinMax *min_max, // Return values. float &latency...
ClockLatency.cc CycleAccting.cc DataCheck.cc DeratingFactors.cc DisabledPorts.cc ExceptionPath.cc InputDrive.cc PinPair.cc PortDelay.cc PortExtCap.cc Sdc.cc SdcCmdComment.cc SdcGraph.cc WriteSdc.cc WriteSdcPvt.hh sdf search tcl test util verilog .clang-format .dockerignore .gitignore CMakeLis...
When I look at the Fitter warnings I see that it is ignoring all of the False Path settings from the low_latency_10G_ethernet.sdc. When I compiled the sample design I did not see these warnings. Any clue what could be causing the Fitter to ignore the False Path ...
So my FPGA design drives the output pin from a registers using an internal clock, and it also outputs the internal clock. I read the TimeQuest User Guide for example, but they show dac being driven from a external system clock source and adjusting set_output_delay and set...
data and clock board delays are unique to your design. if both are equal, same material and thickness then you can ignore it. After all such delays are in picoseconds and if you are not sure you may just add extra margin on your sdc figures to further limit the sampling wind...
ClockLatency.cc CycleAccting.cc DataCheck.cc DeratingFactors.cc DisabledPorts.cc ExceptionPath.cc InputDrive.cc PinPair.cc PortDelay.cc PortExtCap.cc Sdc.cc SdcCmdComment.cc SdcGraph.cc WriteSdc.cc WriteSdcPvt.hh sdf search tcl test util verilog .clang-format .dockerignore .gitignore CMakeLis...
ClockLatency.cc CycleAccting.cc DataCheck.cc DeratingFactors.cc DisabledPorts.cc ExceptionPath.cc InputDrive.cc PinPair.cc PortDelay.cc PortExtCap.cc Sdc.cc SdcCmdComment.cc SdcGraph.cc WriteSdc.cc WriteSdcPvt.hh sdf search tcl test util verilog .clang-format .dockerignore .gitignore CMakeLis...
So my FPGA design drives the output pin from a registers using an internal clock, and it also outputs the internal clock. I read the TimeQuest User Guide for example, but they show dac being driven from a external system clock source and adjusting set_output_delay and set_clo...