Answers Database


2.1i 4KX* Map - Map does not properly place floorplanned DPRAMs


Record #7408

Product Family: Software

Product Line: FPGA Implementation

Product Part: map

Product Version: 2.1i

Problem Title:

2.1i 4KX* Map -	Map does not properly place floorplanned DPRAMs 


Problem Description:
Urgency: Urgent

General Description:
After floorplanning DPRAMs in a design and doing a subsequent map and PAR, the
flooplanning efforts neglect the DPRAMs.


Solution 1:

This problem is scheduled to be fixed in the next (as yet unnamed)
release following version 2.1i. This release is currently scheduled
for March, 2000.



Solution 2:

Solution:

The format for LOC specifiers in the MFP file generated by the Floorplanner was changed in Carnelian. The LOC specifiers now have the "CLB_" site type
specifier (e.g. CLB_R2C3) whereas before this was not included (e.g. R2C3). The mapper code for constraining dual-port RAM was not adjusted.

The workaround is to edit the MFP RAMD records to remove the "CLB_" prefix.




End of Record #7408 - Last Modified: 10/07/99 13:27

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