Answers Database


1.5i, 2.1i Virtex Map - FATAL_ERROR:basmm:basmmfact.c:1349:1.84 - Unknown pad pin type


Record #6314

Product Family: Software

Product Line: FPGA Implementation

Product Part: map

Product Version: 1.5i

Problem Title:

1.5i, 2.1i Virtex Map - FATAL_ERROR:basmm:basmmfact.c:1349:1.84 - Unknown pad pin type


Problem Description:
The error will occur when an .xnf based design contains unbonded pads
  and is re-targetted to a Virtex device.

The work around is replace all unbonded EXT records with a UPAD symbol.


Solution 1:

  A work around is available for this problem. It involves modifying the
.xnf file by substituting an unbonded pad symbol:

   SYM,N00674_PAD,UPAD
   PIN,UPAD,I,N00674
   END

for every unbonded EXT statement:

   EXT,N00674,U

The following perl script upad.pl can be used to make the substitutions.
Keep in mind that the Cntl-M charachters will be corrupted by cut and past
and should be re-entered. The path to the perl exec will need to be modified
for the user's environment. Work Station users should remove the Cntl-M (^M)
from the string matching test in line 5 because the Cntl-M's only appear iin
PC generated .xnf files.


#!/usr/local/bin/perl5
while (<>){
chomp;
     @fields =split(/,/);
     if ($fields[0] eq "EXT" && $fields[2] eq "U^M") {
        $net="$fields[1]";
        $pad="${net}_PAD" ;
        print "SYM,$pad,UPAD^M\n";
        print "PIN,UPAD,I,$net^M\n";
        print "END^M\n";
     }
     else {
        print "$_\n" ;
     }
}


The command to run this script is:
upad.pl orig.xnf > hacked.xnf



Solution 2:

This bug has been assigned to be fixed inthe next (as yet unnamed) release following 2.1i.




End of Record #6314 - Last Modified: 06/26/99 14:17

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