AR# 3810: A1.4/F1.4 Map - FATAL_ERROR:baste:bastetspec.c:908:1.69 - No pins of NC_SIGNAL ...
A1.4/F1.4 Map - FATAL_ERROR:baste:bastetspec.c:908:1.69 - No pins of NC_SIGNAL ...
An environment variable (XIL_MAP_TOLERATE_TIG_ERROR) has been added that changes certain timespec related fatal errors to warnings. The errors ocurr when the correlation between the logical timespec constraint and the physical implementation is lost during mapping. Use of the environment variable caused the timespec to be lost, but allows map to continue. Many of these cases have to do with lost TIGs, so the impact of the lost timespec is that a path is over constrained.
This new feature can be accessed by installing the latest M1.4 Core Tools Update available on the Xilinx Download Area: