Exception error from Xilinx ISE

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gongdori

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Hi all,

I'm using Xilinx ISE 10.1 SP3 and got following error in synthesis stage...
"This application has discovered an exceptional condition from which it cannot recover ..."

Does anyone have any clue...?


Gongdori
 

if u get this error all the time then re-install it.
 

how about trying a newer version. 10.1 is pretty old.
 

Thanks guys...
I wish I could try newer version, but the newer ones do not support the part I am working on.
When I increased the number of taps of the filter I am working on by factor of 1.3, this error came out. It was working fine before...
I wonder if it is related to the size of design it compiles??
 

Hi,

There are a multitude of possibilities for ISE throwing an error as such.

i) Are you using a core function corresponding to an ip?

ii) As you mentioned the design might be too large to compile..a factor 1.3 doesn't seem to be much but how many filters are you implementing, polyphase?

iii) there is a semantic error in your code, causing the synthesizer to go insane.

Suggestion, i) try othr values of filter coefficients, ii) reduce the number of coefficients to say by a factor of 1.01 or 1.2..etc.

Good luck!
 
Thanks Kalyanasv.
I am not using any IP in my design. My design contains more than the number of embedded multipliers available in the part.
About 50% of BRAM and LUT are used. About 40% of registers are used...

I'll try to make the filter smaller and try to compile it.
Thanks for your help.

Gongdori
 
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