setEcoMode -updateTiming false
setEcoMode -refinePlace false -honorDontUse false -batchMode true -honorDontTouch false -honorFixedStatus false
source /asic/home_asic/al_tianfj/eco/sa_mac/sa_macendpoint_pin
source /asic/home_asic/al_tianfj/eco/sa_mac/sa_macbeginpoint_cell
foreach endpoint_pin $endpoint_name beginpoint_cell $beginpoint_name {
set endpoint_net [dbget [dbget top.insts.instTerms.name $endpoint_pin -p].net.name]
attachTerm $beginpoint_cell CP $endpoint_net
}
上面是将launch reg的cp与capture reg的CP net短接,从而消除ocv的影响,最大化cppr,但是launch的reg与capture reg 比较远时,capture前一级ck inv 到launch path会比较长,导致launch path time > capture path time
所以下面方法是将capture reg 的cp 与launch reg的 cp net 短接,既能消除ocv影响,也有利于setup 检查。
source /asic/home_asic/al_tianfj/eco/sa_mac/sa_macbeginpoint_pin
source /asic/home_asic/al_tianfj/eco/sa_mac/sa_macendpoint_cell
foreach beginpoint_pin $beginpoint_name endpoint_cell $endpoint_name {
set beginpoint_net [dbget [dbget top.insts.instTerms.name $beginpoint_pin -p].net.name]
attachTerm $endpoint_cell CP $beginpoint_net
}