Corrected path to hex files.

libraries/dsp/filter/tb/vhdl/tb_fil_ppf_wide.vhd

@@ -99,7 +99,7 @@ entity tb_fil_ppf_wide is
       --   coef_dat_w     : natural; -- = 16, data width of the FIR coefficients
       -- end record;
     g_file_index_arr    : t_nat_natural_arr := array_init(0, 128, 1); 
-    g_coefs_file_prefix : string            := "../../data/coefs_wide"      
+    g_coefs_file_prefix : string            := "hex/coefs_wide"      
   );
 end entity tb_fil_ppf_wide;