80 lines
2.5 KiB
Tcl
80 lines
2.5 KiB
Tcl
# Test multi-corner delay calculation
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# Exercises: define_corners, corner-specific liberty, report_checks -corner, report_dcalc -corner
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define_corners fast slow
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read_liberty -corner fast ../../test/nangate45/Nangate45_fast.lib
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read_liberty -corner slow ../../test/nangate45/Nangate45_slow.lib
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read_verilog dcalc_test1.v
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link_design dcalc_test1
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create_clock -name clk -period 10 [get_ports clk]
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set_input_delay -clock clk 0 [get_ports in1]
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set_output_delay -clock clk 0 [get_ports out1]
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#---------------------------------------------------------------
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# report_checks per corner
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#---------------------------------------------------------------
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puts "--- Fast corner timing ---"
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report_checks -corner fast
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report_checks -corner fast -path_delay min
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report_checks -corner fast -path_delay max
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puts "--- Slow corner timing ---"
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report_checks -corner slow
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report_checks -corner slow -path_delay min
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report_checks -corner slow -path_delay max
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#---------------------------------------------------------------
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# report_dcalc per corner
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#---------------------------------------------------------------
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puts "--- report_dcalc per corner ---"
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catch {report_dcalc -corner fast -from [get_pins buf1/A] -to [get_pins buf1/Z]} msg
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puts $msg
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catch {report_dcalc -corner slow -from [get_pins buf1/A] -to [get_pins buf1/Z]} msg
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puts $msg
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catch {report_dcalc -corner fast -from [get_pins inv1/A] -to [get_pins inv1/ZN]} msg
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puts $msg
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catch {report_dcalc -corner slow -from [get_pins inv1/A] -to [get_pins inv1/ZN]} msg
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puts $msg
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# DFF arcs per corner
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catch {report_dcalc -corner fast -from [get_pins reg1/CK] -to [get_pins reg1/Q]} msg
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puts $msg
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catch {report_dcalc -corner slow -from [get_pins reg1/CK] -to [get_pins reg1/Q]} msg
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puts $msg
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# Setup/hold check arcs per corner
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catch {report_dcalc -corner fast -from [get_pins reg1/CK] -to [get_pins reg1/D] -min} msg
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puts $msg
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catch {report_dcalc -corner slow -from [get_pins reg1/CK] -to [get_pins reg1/D] -max} msg
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puts $msg
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#---------------------------------------------------------------
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# report_checks with -fields for more coverage
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#---------------------------------------------------------------
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puts "--- report_checks with fields ---"
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report_checks -corner fast -fields {slew cap input_pins}
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report_checks -corner slow -fields {slew cap input_pins}
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#---------------------------------------------------------------
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# set_load on output and recheck corners
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#---------------------------------------------------------------
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puts "--- set_load and recheck corners ---"
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set_load 0.1 [get_ports out1]
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report_checks -corner fast
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report_checks -corner slow
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