Цитата
Not enough valid sites to place the following IOBs
Кончились подходящие ножки. Уверены, что шину my_custom_ip_0_slv_reg0_output_pin<*> надо выводить наружу?
Цитата
This may be due to either an insufficient number of sites available on the
device, too many prohibited sites,
or incompatible I/O Standards locked or range constrained to I/O Banks with
valid sites.
This situation could possibly be resolved by one (or all) of the
following actions:
a) Grouping IOBs of similar standards into a minimum amount of I/O Banks by
using LOC or range constraints.
b ) Maximizing available I/O Banks resources for special IOBs by choosing
lower capacity I/O Banks if possible.
c) If applicable, decreasing the number of user prohibited sites or using a
larger device.