Answers Database
 
 
 M1.5i/2.1i: NGDBUILD: UCF constraint on element with special char. gives "ERROR:baspr - SSLex0105e: Invalid token" 
 
 Record #3011
Product Family:  Software 
 
Product Line:  Merged Core 
 
Product Part:  Timing 
 
Problem Title: 
M1.5i/2.1i: NGDBUILD: UCF constraint on element with special char. gives "ERROR:baspr -
SSLex0105e: Invalid token" 
 
 
 
Problem Description: 
Urgency: standard 
 
General Description: 
If the UCF contains a constraint referencing 
~ @ ! + # = , " ` ' ; ^ % | . { or }, then you may get the following: 
 
 
ERROR:baspr - SSLex0105e: Invalid token, Line 1, Offset 6, ~ 
ERROR:bascp:26 - "PADS(~NOTMYSIG)" is not a legal string for a predefined group.  Please check that
the syntax is correct for one of the following predefined groups:  PADS, LATCHES, RAMS, or FFS. 
 
 
Solution 1: 
 
Put the signal or instance name in quotes in the UCF file. Example: 
 
TIMESPEC TS01 = FROM : PADS(MYSIG) : TO: PADS("~NOTMYSIG"): 30; 
 
Some characters cannot be read in the UCF file as part of a signal or instance 
name:  semi-colon(;), equal sign(=), comma(,), double quote("). Even if you put "" 
around the name, the UCF still cannot be parsed. 
 
The wildcard characters asterisk (*) and question mark (?) can be 
part of a signal name (not recommended), but you cannot use double quotes 
around the name in the UCF file to prevent it from being treated as a wildcard. In
other words, if there is a signal called *mysig in the design, and you reference
"*mysig" in the UCF, then this will still be interpreted as meaning "every net that
ends with the string mysig". 
 
As a general rule, you should avoid using ; , " * ? = in the naming of signals and 
instances. 
 
 
 
 End of Record #3011 - Last Modified: 07/13/99 16:00  |