Answers Database

MAP Warning:baste:102 - Logic enclosed by Fmap symbol '..' has too many inputs


Record #2193

Product Family:  Software

Product Line:  Merged Core

Problem Title:
MAP Warning:baste:102 - Logic enclosed by Fmap symbol '..' has too many
inputs



Problem Description:
Keywords: Map, warning, coregen, core generator, multiplier
Urgency: Standard

Maps gives the following WARNING:
WARNING:baste:102 - Logic enclosed by fmap symbol
   `U1/a1/sign_col/signed/sm_3_/m4/sign2_1/fmap_1/b/u1'
   (output signal=U1/n1k)
   has too many inputs.  Up to 4 inputs are allowed.


Solution 1:

Map checks the number of inputs for the FMAP symbols
before it performs logic trimming.

This means that a signal connected to GND or VCC or
a signal that will eventually get optimized away will
be counted as an extra connection on which Map will
report a warning.

This Warning can be safely ignored in this case since
the FMAP will be properly used after optimization.



End of Record #2193