AR# 3943: M1.4 map:ERROR:x52ap:13 - The comp (mapped physical logic cell) "blah" is not placed.
AR# 3943
M1.4 map:ERROR:x52ap:13 - The comp (mapped physical logic cell) "blah" is not placed.
Description
Keywords: IOB, OFD, IFD, macro
URGENCY: Standard
General Description: This error may occur if an OFD/OFD_1 or IFD/IFD_1 macro is used in the design.
解决方案
1
Look for flop in/outputs who have a corresponding attribute in the UCF file such as OUTREG or INREG - removal of these attributes may also correct the problem.
2
Replace the library macro with a user created macro that contains the same library components. For example, an OFD can be replaced by an FD and an OBUF. Either place the FD->OBUF combination into the schematic or create a user macro containing the FD->OBUF.
The same can be done for any other macro that displays the error. This has been fixed for M1.5.