when hardening macros to then use inside caravel, do we need to add power and ground ports? I'm seeing some warnings in the final hardening like this: ERROR] [PDNG-0037] Cannot find pin VDD on instance proj_6 (challenge) [ERROR] [PDNG-0037] Cannot find pin VSS on instance proj_6 (challenge)

Were you able to complete the integration in caravel? @Matt Venn Mine terminates right after

gen_pdn

, saying

segmentation fault.

While there was also

cannot open '/.openroad'

error.

not yet