156 lines
5.5 KiB
Tcl
156 lines
5.5 KiB
Tcl
# Test parasitic deletion, network cleanup, and re-read flows.
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source ../../test/helpers.tcl
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# Read ASAP7 libraries
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read_liberty ../../test/asap7/asap7sc7p5t_SEQ_RVT_FF_nldm_220123.lib
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read_liberty ../../test/asap7/asap7sc7p5t_INVBUF_RVT_FF_nldm_220122.lib.gz
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read_liberty ../../test/asap7/asap7sc7p5t_SIMPLE_RVT_FF_nldm_211120.lib.gz
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read_liberty ../../test/asap7/asap7sc7p5t_OA_RVT_FF_nldm_211120.lib.gz
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read_liberty ../../test/asap7/asap7sc7p5t_AO_RVT_FF_nldm_211120.lib.gz
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read_verilog ../../test/reg1_asap7.v
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link_design top
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create_clock -name clk -period 500 {clk1 clk2 clk3}
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set_input_delay -clock clk 1 {in1 in2}
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set_output_delay -clock clk 1 [get_ports out]
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set_input_transition 10 {in1 in2 clk1 clk2 clk3}
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set_propagated_clock {clk1 clk2 clk3}
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#---------------------------------------------------------------
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# Test 1: Set pi+elmore, run timing, then delete parasitics
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# Exercises: makePiElmore, deleteParasitics, deleteReducedParasitics
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#---------------------------------------------------------------
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puts "--- Test 1: set then delete manual parasitics ---"
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sta::set_pi_model u1/Y 0.005 10.0 0.003
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sta::set_elmore u1/Y u2/A 0.005
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sta::set_pi_model u2/Y 0.008 15.0 0.005
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sta::set_elmore u2/Y r3/D 0.008
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sta::set_pi_model r1/Q 0.002 5.0 0.001
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sta::set_elmore r1/Q u1/A 0.003
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sta::set_pi_model r2/Q 0.003 6.0 0.002
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sta::set_elmore r2/Q u2/B 0.004
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sta::set_pi_model r3/Q 0.001 2.0 0.001
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sta::set_elmore r3/Q out 0.002
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# Run timing to trigger reduction and build caches
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report_checks
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# Run with arnoldi delay calc to exercise different reduction paths
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set_delay_calculator arnoldi
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report_checks
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# Switch back
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set_delay_calculator dmp_ceff_elmore
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# Delete all parasitics by reading SPEF which overrides manual
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# This exercises deleteReducedParasitics paths
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read_spef ../../test/reg1_asap7.spef
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report_checks
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#---------------------------------------------------------------
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# Test 2: Read SPEF, run timing, then re-read SPEF
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# Exercises: deleteParasiticNetworks, re-read paths
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#---------------------------------------------------------------
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puts "--- Test 2: SPEF re-read ---"
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# Run timing with different calculators to build caches
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report_checks -fields {slew cap input_pins}
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set_delay_calculator arnoldi
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report_checks
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set_delay_calculator dmp_ceff_two_pole
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report_checks
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# Now re-read the same SPEF - this triggers deleteParasiticNetworks + deleteReducedParasitics
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set_delay_calculator dmp_ceff_elmore
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read_spef ../../test/reg1_asap7.spef
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report_checks
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#---------------------------------------------------------------
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# Test 3: Query parasitics state
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# Exercises: findPiElmore, findElmore, capacitance
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#---------------------------------------------------------------
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puts "--- Test 3: query parasitic state ---"
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set pi_u1 [sta::find_pi_elmore [get_pins u1/Y] "rise" "max"]
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puts "u1/Y rise max pi: $pi_u1"
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set pi_u1_fall [sta::find_pi_elmore [get_pins u1/Y] "fall" "max"]
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puts "u1/Y fall max pi: $pi_u1_fall"
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set pi_r1 [sta::find_pi_elmore [get_pins r1/Q] "rise" "max"]
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puts "r1/Q rise max pi: $pi_r1"
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set elm [sta::find_elmore [get_pins u1/Y] [get_pins u2/A] "rise" "max"]
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puts "elmore u1/Y->u2/A: $elm"
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set elm_min [sta::find_elmore [get_pins u1/Y] [get_pins u2/A] "rise" "min"]
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puts "elmore u1/Y->u2/A min: $elm_min"
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set elm_fall [sta::find_elmore [get_pins u1/Y] [get_pins u2/A] "fall" "max"]
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puts "elmore u1/Y->u2/A fall: $elm_fall"
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# Query for non-existent paths
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set elm_none [sta::find_elmore [get_pins r3/Q] [get_pins u1/A] "rise" "max"]
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puts "elmore r3/Q->u1/A (should be empty): $elm_none"
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#---------------------------------------------------------------
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# Test 4: Manual pi model THEN SPEF THEN manual again
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# Exercises: deleteReducedParasitics on second manual set
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#---------------------------------------------------------------
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puts "--- Test 4: manual -> SPEF -> manual ---"
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# Set manual again on top of SPEF
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sta::set_pi_model u1/Y 0.01 20.0 0.008
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sta::set_elmore u1/Y u2/A 0.01
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report_checks
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# Query back the manually set values
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set pi_u1_new [sta::find_pi_elmore [get_pins u1/Y] "rise" "max"]
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puts "u1/Y pi after re-set: $pi_u1_new"
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set elm_u1_new [sta::find_elmore [get_pins u1/Y] [get_pins u2/A] "rise" "max"]
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puts "elmore u1/Y->u2/A after re-set: $elm_u1_new"
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#---------------------------------------------------------------
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# Test 5: Report annotation in various states
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# Exercises: reportParasiticAnnotation
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#---------------------------------------------------------------
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puts "--- Test 5: annotation reports ---"
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report_parasitic_annotation
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report_parasitic_annotation -report_unannotated
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#---------------------------------------------------------------
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# Test 6: Report net with various digit counts
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# Exercises: report_net paths with different formatting
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#---------------------------------------------------------------
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puts "--- Test 6: report_net ---"
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foreach net_name {r1q r2q u1z u2z out in1 in2 clk1 clk2 clk3} {
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report_net -digits 6 $net_name
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}
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#---------------------------------------------------------------
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# Test 7: Delay calc with dcalc reports
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# Exercises: various parasitic query paths in dcalc
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#---------------------------------------------------------------
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puts "--- Test 7: dcalc reports ---"
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report_dcalc -from [get_pins u1/A] -to [get_pins u1/Y] -max -digits 6
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report_dcalc -from [get_pins u2/A] -to [get_pins u2/Y] -max -digits 4
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report_dcalc -from [get_pins r1/CLK] -to [get_pins r1/Q] -max
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report_dcalc -from [get_pins r2/CLK] -to [get_pins r2/Q] -max
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report_dcalc -from [get_pins r3/CLK] -to [get_pins r3/Q] -max
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# Final read SPEF again to exercise re-read cleanup
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read_spef ../../test/reg1_asap7.spef
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report_checks
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