FIR II Compiler

Hi,

I have been lately trying to get the FIR II compiler to work. (the megafunction) However I am not able to get any kind of response from the filter implementation.

Using the Megawizard plugin I generated a single channel FIR filter, fractional rate = 5/2, 100 MSPs, clock = 400MHz.

I then map the component ports in the main my main vhdl file as follows:

rrcfilter_inst : component RRCfilter

port map(

clk => clk,

reset_n => '1',

coeff_in_clk => '0',

coeff_in_areset => '0',

ast_sink_data => sink_data,

ast_sink_ready => sink_ready,

ast_sink_valid => '1',

ast_sink_error => "00",

ast_source_data => source_data,

ast_source_ready => '1',

ast_source_valid => source_valid,

ast_source_error => source_error

);

However I am not able to get any valid output when I simulate in modelsim. The clk runs at 400Mhz. The input samples sink_data come at 100 Mhz. Please someone help me out.

Vinay