Hi How to set the parameters of "FP_PDN_VPITCH" and "FP_PDN_HPITCH

These are set in the

config.json

file for the design (see

openlane/user_project_wrapper/config.json

). It’s the distance between the start of a set of 8 power rails. You want to be sure that the pitch is small enough to intersect with each of your hard macros. The other option is to manually place the macros so that they intersect the appropriate power rails.