UPF: power pin connection problems

[vince_g]

Error: The power pin VDD on the cell u_top/u_test/u_and2 is unconnected. (UPF-581)
-----------------------------------------------------------------------------------------------
Cell Power Pin Type Maximum Minimum Connected Power
Name Voltage Voltage Net
-----------------------------------------------------------------------------------------------
u_top/u_test/u_and2
VDD Primary Power 0.81 0.81 VDD (*)
u_top/u_test/u_and2
VSS Primary Ground 0.00 0.00 VSS (*)
-----------------------------------------------------------------------------------------------

Anyone has any idea how to solve this error? When I report_power_pin_info for the cell, it seems like my upf is read in and the power pins are connected to the supply nets but somehow when I ran check_mv_design the power pins are still unconnected.

 

[ThisIsNotSam]

you have to provide more details, context. what tool are you using? what is this cell you are trying to connect? is it a std cell or a custom cell or a power switch?

 

[vince_g]

Hi, currently running on DC compiler and it's a std cell. On RTL, I've let the port unconnected and was planning to do the power pin connection via UPF. Its so weird that it reports that it's connected but when I'm trying to compile the design it reports that it's still unconnected.

I've also tried to create a power domain wrapping the leaf std cells with supply ports for the domain but it still reports that the power pins are unconnected.