edi bufferTreeSynthesis cmd problem

paulsuzhou

encouent auto created bts_spec file

i use this cmd to buf a hign fanout net of PWDD , whis is a net connected to 200+ number of ISO cells iso pin , but  encounter failed to do it , no buffer insered in this net , I dont know the reason , who can tell me why ?

paulsuzhou

it report there has no lef pin matched U_ISO_UNITS/U_ISO_CSI_TESTDOUT5/ISO , that is to say , all the listed pin can not been found , but they are at there , why report can not been found in the design ?

paulsuzhou

没人理我啊？？

icfbicfb

一般buffer tree是自动 产生的，根据需要

而有可能你这个是power domain引起的，比如dont touch属性等，

paulsuzhou

回复 4# icfbicfb


    是的，bts_spec.tcl 是自动产生的，但是没有插入buffer形成tree， 那么是net 的dont_touch 还是cell 的dont_touch 造成的呢，或者是module 的dont_touch 属性造成的？

zhanggd

是不是LeafPorts啊，用get_ports试试看看

paulsuzhou