how to implement EDF with ram instantiation in ISE

[ackqin]

I synthesize my project in synplicity, then I use the edf file to place&route, but I meet error, because I used several block ram in the code. how can I solve this problem.

I use ISE and SPRARTAN3 XC3S400

THANKS

ackqin

 

[eziggurat]

it will be very useful if you can include the message from ISE. Also look at the xilinx website.

 

[HighTechEE]

Is your blockrams blackbox instantiations in your top level code? If so, then you will have to provide the BRAM's .edn files in the ISE PAR tool...