Netname Conflicts or Inconsistencies

Since NETEX will be grabbing net names from strings of text it is possible to run into conflicts or ambiguities in the naming. Consider the following potential problems:

  1. There is more than one string of text under the metal we have determined to be a net. The strings are not identical. Which string should we use?

    net name conflict

    Answer - Use the first string you encounter and then write to an alias file the two strings: i.e. alias clock5 buffer52. Subsequent software can analyze the alias file and determine what to do.

  2. The same string value is found under two distinct nets - should or should not these be assigned the same net name when in fact they have no electrical connectivity?

    net name conflict

    Answer - this is acceptable; it is likely that this may occur in typical designs and the two (or more) physical nets should be treated as if physically connected.

Logging of Net Name Conflicts

The log file produced by NETEX can be used examine conflicts.