185 lines
7.2 KiB
Tcl
185 lines
7.2 KiB
Tcl
# Test ReportPath with PVT info, capacitance fields, and various
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# PathEnd type reporting (latch, output delay, data check, unconstrained).
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# Targets: ReportPath.cc reportPathPvt (corner PVT display),
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# reportPathCapacitance, reportFull for PathEndLatchCheck,
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# PathEndOutputDelay, PathEndUnconstrained, PathEndPathDelay,
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# reportSummaryLine, reportSlackOnly, reportEndpointHeader,
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# report_path_cmd with different formats,
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# PathEnd.cc various PathEnd type methods,
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# Sta.cc findPathEnds with complex filters,
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# endpointViolationCount, endpointPins, startpointPins
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source ../../test/helpers.tcl
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read_liberty ../../test/nangate45/Nangate45_typ.lib
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read_verilog search_latch.v
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link_design search_latch
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create_clock -name clk -period 10 [get_ports clk]
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set_input_delay -clock clk 1.0 [get_ports in1]
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set_input_delay -clock clk 1.0 [get_ports in2]
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set_output_delay -clock clk 2.0 [get_ports out1]
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set_output_delay -clock clk 2.0 [get_ports out2]
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# Force timing
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report_checks -path_delay max > /dev/null
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############################################################
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# Latch path timing (PathEndLatchCheck)
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############################################################
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puts "--- Latch timing: full format ---"
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report_checks -path_delay max -format full
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puts "--- Latch timing: full_clock format ---"
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report_checks -path_delay max -format full_clock
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puts "--- Latch timing: full_clock_expanded format ---"
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report_checks -path_delay max -format full_clock_expanded
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puts "--- Latch timing: short format ---"
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report_checks -path_delay max -format short
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puts "--- Latch timing: end format ---"
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report_checks -path_delay max -format end
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puts "--- Latch timing: summary format ---"
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report_checks -path_delay max -format summary
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puts "--- Latch timing: slack_only format ---"
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report_checks -path_delay max -format slack_only
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puts "--- Latch timing: json format ---"
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report_checks -path_delay max -format json
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puts "--- Latch timing min: all formats ---"
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report_checks -path_delay min -format full
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report_checks -path_delay min -format full_clock
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report_checks -path_delay min -format full_clock_expanded
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report_checks -path_delay min -format short
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report_checks -path_delay min -format end
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report_checks -path_delay min -format summary
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report_checks -path_delay min -format slack_only
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report_checks -path_delay min -format json
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############################################################
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# Capacitance field in report
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############################################################
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puts "--- report with capacitance field ---"
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report_checks -path_delay max -fields {capacitance}
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puts "--- report with all fields ---"
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report_checks -path_delay max -fields {capacitance slew fanout input_pin net src_attr}
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puts "--- report with capacitance + slew ---"
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report_checks -path_delay max -fields {capacitance slew}
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puts "--- report full_clock with capacitance ---"
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report_checks -path_delay max -format full_clock -fields {capacitance}
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puts "--- report full_clock_expanded with capacitance ---"
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report_checks -path_delay max -format full_clock_expanded -fields {capacitance}
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############################################################
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# With loads set to exercise capacitance reporting
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############################################################
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puts "--- set_load and report with cap ---"
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set_load 0.05 [get_ports out1]
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set_load 0.03 [get_ports out2]
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report_checks -path_delay max -fields {capacitance slew fanout}
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report_checks -path_delay min -fields {capacitance slew fanout}
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############################################################
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# Output delay PathEnd (PathEndOutputDelay)
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############################################################
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puts "--- Output delay paths ---"
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report_checks -to [get_ports out1] -path_delay max -format full
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report_checks -to [get_ports out1] -path_delay min -format full
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report_checks -to [get_ports out2] -path_delay max -format full
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report_checks -to [get_ports out2] -path_delay min -format full
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############################################################
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# Unconstrained paths
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############################################################
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puts "--- unconstrained paths ---"
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report_checks -unconstrained -path_delay max
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report_checks -unconstrained -path_delay min
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report_checks -unconstrained -path_delay max -format json
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############################################################
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# Max/min delay paths (PathEndPathDelay)
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############################################################
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puts "--- max_delay constraint ---"
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set_max_delay -from [get_ports in1] -to [get_ports out1] 8.0
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report_checks -path_delay max -format full
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report_checks -path_delay max -format full_clock
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report_checks -path_delay max -format json
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puts "--- min_delay constraint ---"
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set_min_delay -from [get_ports in1] -to [get_ports out1] 1.0
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report_checks -path_delay min -format full
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report_checks -path_delay min -format full_clock
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report_checks -path_delay min -format json
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############################################################
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# find_timing_paths with various filters
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############################################################
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puts "--- find_timing_paths max ---"
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set paths_max [find_timing_paths -path_delay max -endpoint_count 5 -group_path_count 10]
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puts "Found [llength $paths_max] max paths"
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foreach pe $paths_max {
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puts " pin=[get_full_name [$pe pin]] slack=[$pe slack] is_check=[$pe is_check]"
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}
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puts "--- find_timing_paths min ---"
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set paths_min [find_timing_paths -path_delay min -endpoint_count 5 -group_path_count 10]
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puts "Found [llength $paths_min] min paths"
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foreach pe $paths_min {
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puts " pin=[get_full_name [$pe pin]] slack=[$pe slack] is_check=[$pe is_check]"
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}
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puts "--- find_timing_paths min_max ---"
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set paths_mm [find_timing_paths -path_delay min_max -endpoint_count 3]
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puts "Found [llength $paths_mm] min_max paths"
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foreach pe $paths_mm {
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puts " min_max=[$pe min_max] slack=[$pe slack]"
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}
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############################################################
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# Endpoint and startpoint pins
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############################################################
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puts "--- endpoint/startpoint pins ---"
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set ep [sta::endpoints]
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puts "Endpoints: [llength $ep]"
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# TODO: sta::startpoints removed from SWIG interface (startpointPins not defined)
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# set sp [sta::startpoints]
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# puts "Startpoints: [llength $sp]"
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puts "Startpoints: skipped (API removed)"
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set ep_count [sta::endpoint_count]
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puts "Endpoint count: $ep_count"
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############################################################
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# Endpoint violation count
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############################################################
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puts "--- endpoint_violation_count ---"
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set viol_max [sta::endpoint_violation_count "max"]
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puts "Max violations: $viol_max"
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set viol_min [sta::endpoint_violation_count "min"]
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puts "Min violations: $viol_min"
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############################################################
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# report_path with digits
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############################################################
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puts "--- report with high digits ---"
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report_checks -path_delay max -digits 8
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puts "--- report with low digits ---"
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report_checks -path_delay max -digits 2
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############################################################
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# TotalNegativeSlack and WorstSlack
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############################################################
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puts "--- TotalNegativeSlack ---"
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report_tns
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report_wns
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report_worst_slack -max
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report_worst_slack -min
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