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cordic atan in Xilinx Blockset Library

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beej

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I am using cordic atan from the xilinx blockset . The inputs are in-phase and quadrature components of a signal. No matter what the input value is, once i run it, the values become infinity and it gives the following error:



An internal error occurred in the Xilinx Blockset Library.

Please report this error to Xilinx (http://support.xilinx.com), in as much detail as possible. You may also find immediate help in the Answers Database and other online resources at http://support.xilinx.com.


Error occurred during "Rate and Type Error Checking".



The Matlab version i am using is 7.6.0(R2008a) and Xilinx ISE 10.1 , Can anyone suggest how to get rid of this error?
 

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