IO power pad and core power pad connect

stephen-dong

My

IO

and

Core

power

pad

in

the

reference

library

is
:

IO

power

pad

cell;
PLVDDH


IO

ground

pad

cell
:
PLVSSH


Core

power

pad

cell
:
PLVDDC


Core

ground

pad

cell
:
PLVSSC


and

I

want

to
:

connect

Core

power

pad

to

global

net

VDD


connect

Core

ground

pad

to

global

net

GND


connect

IO

power

pad

to

global

net

VDDH


connect

IO

ground

pad

to

global

net

VSSH

In pre-placement optimization,there some warnings as follow:
cannot connect PF automatically,
Multiple PG nets dound for voltage areas
there are 2 power nets for voltage area DEFAULT_VA
there are 2 ground netd for voltage area DEFAULT_VA
...............

after routing
during LVS there are some ERRORs such as net VDD,GND,VSSH,VDDH are floating.

what can I do to deal with these problems.

stephen-dong

My IO and Core power pad in the reference library is:
IO power pad cell&#65306LVDDH
IO ground pad cell: PLVSSH
Core power pad cell: PLVDDC
Core ground pad cell: PLVSSC
and I want to:
connect Core power pad to global net VDD
connect Core ground pad to global net GND
connect IO power pad to global net VDDH
connect IO ground pad to global net VSSH
In pre-placement optimization,there some warnings as follow:
cannot connect PF automatically,
Multiple PG nets dound for voltage areas
there are 2 power nets for voltage area DEFAULT_VA
there are 2 ground netd for voltage area DEFAULT_VA
...............

after routing
during LVS there are some ERRORs such as net VDD,GND,VSSH,VDDH are floating.

what can I do to deal with these problems.