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AR# 22357

7.1i SP4 BitGen - Bitstream does not contain block RAM routing frames in Module-based Partial Reconfiguration

Description

General Description: 

Module-based Partial Reconfiguration fails if configuration frames for the reconfigurable module contain block RAM routing frames (regardless of whether or not block RAM are used).

Solution

To work around this issue, add a block RAM range constraint to the Reconfiguration Module in the UCF file (as in the example below): 

 

 #Start of Area Group Constraints 

INST "reco_module" AREA_GROUP = "AG_reco_module" ; 

AREA_GROUP "AG_reco_module" MODE=RECONFIG ; 

AREA_GROUP "AG_reco_module" RANGE = SLICE_X0Y159:SLICE_X53Y0 ; 

AREA_GROUP "AG_reco_module" RANGE = RAMB16_X0Y19:RAMB16_X4Y1 ; 

 

This issue will be resolved in 8.1i SP1.

AR# 22357
Date Created 09/04/2007
Last Updated 05/19/2014
Status Archive
Type General Article