Answers Database
PPR 5.2.1: Possible Cause of PPR error 9016 if using Floorplanner
Record #1937
Product Family: Software
Product Line: XACT FPGA
Product Part: ppr
Product Version: 5.2.1
Problem Title:
PPR 5.2.1: Possible Cause of PPR error 9016 if using Floorplanner
Problem Description:
ERROR MESSAGE:
*** PPR: ERROR:
The following symbols of the set h_set cannot all fit into a single CLB block for this device. Corre
ct the following problem(s) for the symbols listed below.
*** PPR: ERROR 9016:
The set cannot be placed. The previously mentioned block(s) of the set should be closely examined.
Solution 1:
A possible cause of this rather generic message could be the use of the floorplanner to place a part
icular part of a design.
Example:
Placing a CC16CE counter macro within a 2X4 CLB matrix - with the BUFT16 macro that the counter is d
riving to the left of it on the floorplan. Writing/Saving this placement to a constraints file to r
un ppr -> reports ppr error 9016.
PPR has trouble routing the design as placed within the floorplan in the above example - moving the
BUFT16 to the right of the CC16CE counter removes the error.
By way of example, placement of your design within the floorplanner may be one potential source of t
his error message.
End of Record #1937 - Last Modified: 10/27/97 15:45 |
