create scenario 問題

yuenlee · 发表于 3 天前

本帖最后由 yuenlee 于 2025-4-11 15:58 编辑

目前使用ICC2时遇到了Mismatched temperature的问题
后来发现是因为STD的temperature跟flash是不同
想请问遇到这个情况要怎么解决

icc2_shell> report_pvt
****************************************
Report : pvt
Design : chip_flash_top
Version: V-2023.12
Date : Fri Apr 11 14:40:33 2025
****************************************
--------------------------------------------------------------------------------
Warning: Corner max:  0 process number, 0 process label, 0 voltage, and 1 temperature mismatches. (PVT-030)
Warning: 1 cells affected for early, 1 for late. (PVT-031)
Warning: 0 port driving_cells affected for early, 0 for late. (PVT-034)
--------------------------------------------------------------------------------

Warning: Mismatched temperature in corner max. (PVT-021)
Library has 2 panes
Entry 69:
  Lib: flash
  Pane: 1
  Process Label:  specified: (none)       effective: (none)
  Process Number: specified: 1          effective: 1
  Rail 0 (default) Voltage: specified: 4.50       dynamic: --          effective: 4.50       static: 4.50
* Temperature: specified: 125.00       effective: 85.00
  Primary rail: 0  Secondary rail: --  N-bias rail: --  P-bias rail: --
  early cell refs: 1       port refs: 0    driving_cell refs: 0    lib refs: 1
  late  cell refs: 1       port refs: 0    driving_cell refs: 0    lib refs: 1

yuenlee · 发表于 3 天前

这是我的脚本

set corners  { max  min }
set tlup(max)  ./library/tech/starxt/tluplus/*.tluplus
set tlup(min)  ./library/tech/starxt/tluplus/*.tluplus
set tlup_map ./library/tech/starxt/tluplus/star.map

set opcond(max)  ss_1p35v_125c  ;# from db operating condition
set opcond(min)  ff_1p65v_-40c

set modes  {func}
set sdc(func) */*.sdc
remove_corners -all
remove_modes -all
remove_scenario -all

foreach var $corners {
create_corner $var
}
foreach var $modes {
create_mode $var
}
foreach c $corners {
foreach m $modes {
   create_scenario -name ${m}_${c} -mode $m -corner $c
}
}

foreach var $corners {
current_corner $var
read_parasitic_tech -tlup $tlup($var) -layermap $tlup_map
set_parasitic_parameters -late_spec $tlup($var) -early_spec $tlup($var)
set_operating_conditions $opcond($var)
}

foreach m $modes {
foreach_in_coll s [get_scenarios -mode $m] {
   current_scenario $s
   source $sdc($m)
}
}

set_scenario_status -all -active true [all_scenarios]

current_scenario func_max