Eco flow

ECO FLOW

After route_opt is done  "600_route_opt"  will be linked to "700_final"

ls -lrt 700_final  

700_final -> 600_route_opt 

always final data base will be linked to "700_final"

cd invs.$(tag)

cp -rf fscripts/eco_pass.N.DESC.tcl        fscripts/eco_pass.1.timing.tcl

 NOTE : use the same version in eco phase as used during implementation

use below command  to open interactive session

 qinvs_eco –v <>  -m <> -s fscripts/eco_pass.1.timing.tcl

it will open  "GUI" after below two commands are executed

win

return

 edit the eco_pass.1.timing.tcl in below section

Please refer the latest eco_pass.N.DESC.tcl from Larry (Jan 7, 2025) with extra settings for tweaker ECO

/project/mercury/bin/block_scripts/eco_pass.N.DESC_Tweaker.tcl

#### /////////////////////BEGIN ADD ECO CODE/////////////////////////////////////////////////////

#### Example of how to turn off timing updates and refine place during ecoAddRepeater

setEcoMode -refinePlace false -updateTiming false

## insert source files or source code here for batch mode

## for examples of useful commands look at the bottom of the file

## an early extractRC has prevented errors during ecoAddRepeater: uncomment if desired

# extractRC

## uncomment to source tweaker commands: START

## turn on batchMode and flag to allow non batch mode commands common in tweaker

set is_honorDontTouch [getEcoMode -honorDontTouch]

set is_honorDontUse [getEcoMode -honorDontUse]

set is_honorFixedStatus [getEcoMode -honorFixedStatus]

set is_refinePlace [getEcoMode -refinePlace]

set is_honorFixedNetWire [getEcoMode -honorFixedNetWire]

set is_updateTiming [getEcoMode -updateTiming]

set is_spreadInverter [getEcoMode -spreadInverter]

set is_keepOriginalWires [getEcoMode -keepOriginalWires]

etEcoMode -honorDontUse false -honorDontTouch false -honorFixedStatus false -refinePlace false -updateTiming false -honorFixedNetWire false -spreadInverter false -keepOriginalWires true

set dpgAllowUnsupportedCmdsInBatch 1

setEcoMode -batchMode true

set_interactive_constraint_modes [all_constraint_modes -active]

setEditMode -drc_on 0

source ecoFile.tcl 

set_interactive_constraint_modes {}

## lac restore ecoMode settings to those from before.

setEcoMode -batchMode false

setEditMode -drc_on 1

setEcoMode -honorDontUse $is_honorDontUse -honorDontTouch $is_honorDontTouch -honorFixedStatus $is_honorFixedStatus -refinePlace $is_refinePlace -updateTiming $is_updateTiming -honorFixedNetWire $is_honorFixedNetWire -spreadInverter $is_spreadInverter -keepOriginalWires $is_keepOriginalWires

## uncomment to source tweaker commands: END

## uncomment to source noise fixes

## NOTE, you must copy the <BLOCK>.ets_noise.LOGIC.FF.WIN_FF.eco file from the 

## avo/noise/ff.win_ff/rpts/ directory to the local nano*/fscripts directory

# source $SCRIPT_DIR/<BLOCK>.ets_noise.LOGIC.FF.WIN_FF.eco

## uncomment to source avo/timing/leakage_opt cell swaps

## NOTE, you must copy the LKG_OPT_cell_changes.NANO.tcl file from the 

## avo/timing/leakage_opt/data directory to the local nano*/fscripts directory

# source $SCRIPT_DIR/LKG_OPT_cell_changes.NANO.tcl

## uncomment if you are doing a functional eco

## This will remove the dangling wires from the eco cells 

## This is not needed for general ECOs, only functional ECOs (changing logic)

## Resolved in Innovus 20.* 

#if {$MJR_MNR_VERSION < 20.00} {

#  setNanoRouteMode -dbExpKeepDanglingWires false

#}

#### /////////////////////END ADD ECO CODE///////////////////////////////////////////////////////

comment all the lines till win ; return commands

and source eco_pass.1.timing.tcl 

after eco is done 700_final will be linked to "700_final.1.timing"

if we want to revert the eco follow below procedure

unlink 700_final

remove current final "700_final.N.<DESC"

link 700_final to "700_final.(N-1).DESC"

and restart eco