Answers Database
1.5i Virtex Map - Not all instances a timespec are being covered by the resulting .pcf file.
Record #6289
Product Family: Software
Product Line: FPGA Implementation
Product Part: map
Product Version: 1.5is2
Problem Title:
1.5i Virtex Map - Not all instances a timespec are being covered by the resulting .pcf file.
Problem Description:
Urgency: Standard
General Description:
Not all instances covered by a timespec are being covered by the resulting .pcf file.
Solution 1:
The 1_5 mapper has a bug when packing FDCP or FDRS type flops. The
tspecs are not properly transferred. A workaround is to prevent any packing
around FDCP or FDRS flops by applying XBLKNM attributes to the instances
involved..
INST "inst_name" XBLKNM=unique_string" ;
This problem has been fixed in the 2.1i release, due to begin shipping in June.
End of Record #6289 - Last Modified: 05/10/99 12:06 |
