Warning when doing place&route in ISE

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phoenixfeng

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help:ISE place&route

when place&route ,the warning below happen:
WARNING:SpeedCalc:42 - Cannot find referenced model "bel_d_min_period". This
generally indicates that there is an inconsistency between versions of the
speed and device data files. Please check to ensure that the XILINX
environment variable is set correctly, if the MYXILINX variable is set, make
sure that it is pointing to patch files that are compatable with the version
of software that the XILINX variable points to.

how should i do?
 

Re: help:ISE place&route

let try to delete ur user constraint file and add a new user constraint file with differnet name... mostly u use different fpga family from the ucf in ur project
 

Re: help:ISE place&route

Hi,
Also check if you have the latest device files from xilinx. A new UCF will also help.
BRMadhukar
 

Re: help:ISE place&route

Remove time setup constraints.
 

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