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synthesis problem in Xilinx ISE

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singla.vishal8

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I have made a floating point multiplier
i have problem in Xilinx 8.2i synthesis, it does not show the timing analysis of the multiplier
It is showing the following statements:

" TIMING REPORT

NOTE: THESE TIMING NUMBERS ARE ONLY A SYNTHESIS ESTIMATE.
FOR ACCURATE TIMING INFORMATION PLEASE REFER TO THE TRACE REPORT
GENERATED AFTER PLACE-and-ROUTE.

Clock Information:
------------------
No clock signals found in this design

Asynchronous Control Signals Information:
----------------------------------------
No asynchronous control signals found in this design

Timing Summary:
---------------
Speed Grade: -5

Minimum period: No path found
Minimum input arrival time before clock: No path found
Maximum output required time after clock: No path found
Maximum combinational path delay: No path found

Timing Detail:
--------------
All values displayed in nanoseconds (ns)"

plz sove my problem
 

Actually i have also used 12.1 version of ISE
but it did not give me the timing result of my program......
it just showing that "NO PATH FOUND" in Synthesize result..
Can you please tell me what is the problrm????
 

This usually happens when all of your logic is synthesised away, for various resons, but the two usual culprits are
1. you have no outputs
2. a clock is stuck at 1 or 0, or a reset is stuck at '1', or an enable stuck at '0'.
 

i have given the outputs
and also clock has not stuck at 1 or 0
n i didn't apply reset n enable...

so any another reason of this....
 

Basically, the synthesisor has decided your design does nothing (because of my two reasons) Why not post your code?
 

actually the code is not with me now i will post it tomorrow..
i have also got timing message "2752" , can u please tell me about it....

Thank You..
 

I have no idea what timing message 2752 is (and I doubt anyone knows what it is). Why not copy and paste it....
 

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