When running translate in F1.3, Ngdbuild may give you a warning and error messages such as this:
WARNING:basts:19 - The user TIMEGRP "tnmgrplo" does not contain any elements such as pads, latches, flip-flops, or RAMs, either from direct references or from include groups. This can be caused either by other time groups that are empty of these elements; or if the TIMEGRP was defined as a predefined group (i.e. FFS(Q*)) and the predefined group has no elements (i.e., FLIPFLOPS for FFS(Q*)). Please modify this TIMEGRP so it contains elements.
ERROR:basts:40 - One or both TIMEGRPs referenced in the THRU and/or TO fields of the "FROM:TO" TIMESPEC "TS02" are empty or missing.
Timing Specification DRC failed with 1 error(s) and 1 warning(s).
This problem may be caused by the fact the TNM = timegrp_name attribute you have attached to the logiblox symbol in the schematic is not appropriately transfered to the EDIF netlist. When you try to use this timegrp in the TIMESPEC, it will complain that there is no element in this timegrp.
Currently, Foundation F1.3 does not properly pass any type of attributes on Logiblox symbols on a schematic. Therefore, if you place a TNM attribute on a Logiblox symbol, the TNM will not get passed to the underlying logic in the EDIF file.
Until this problem gets fixed in Foundation, the immediate workaround is to assign the TNM attribute via a UCF file. The syntax for this is:
INST module_reference_name TNM = timegrp_name;
If the logiblox module is instantiated in lower level, then you will need to specify the complete heiarchical name.