------------------------------------------------------------------ -- -- -- -- -- Fifth Order Elliptical Wave Filter -- -- -- -- D. Sreenivasa Rao -- -- University of California, Irvine, CA, 92717. -- -- -- -- September 1, 1992 -- -- -- ------------------------------------------------------------------ This directory contains the files describing the HLS benchmark example, the elliptic wave filter. They are organized as follows : o ellip.vhdl : The VHDL behavioral model for the elliptical filter. o ellip.doc : Describes the elliptic filter in brief. o test_vectors.vhdl : A 'test' process built around the VHDL model of the elliptical filter. o test_vectors.doc : A brief document on the test vectors described in "test_vectors.vhdl". o cmd.inc : Simulation command file for running the test vectors on the Zycad simulator. ***************************************************************** To run the test vectors for elliptic filter ***************************************************************** (a) Compile the three VHDL files -- bit_functions.vhdl, ellip.vhdl and test_vectors.vhdl -- by invoking the command zvan (b) Run the simulation using the command zvsim -t ns -i cmd.inc E The simulation output will appear in a file called "run.out". If there are any errors in simulation, "Assert" statements will appear in this file, mentioning the port at which the error occurred and the expected value.