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// -*- verilog -*-
//
// USRP - Universal Software Radio Peripheral
//
// Copyright (C) 2003 Matt Ettus
//
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation; either version 2 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 51 Franklin Street, Boston, MA 02110-1301 USA
//
module cic_decim_tb;
cic_decim #(.bitwidth(16),.stages(4))
decim(clock,reset,enable,strobe_in,strobe_out,signal_in,signal_out);
reg clock;
reg reset;
reg enable;
wire strobe;
reg [15:0] signal_in;
wire [15:0] signal_out;
assign strobe_in = 1'b1;
reg strobe_out;
always @(posedge clock)
while(1)
begin
@(posedge clock);
@(posedge clock);
@(posedge clock);
@(posedge clock);
strobe_out <= 1'b1;
@(posedge clock);
@(posedge clock);
@(posedge clock);
@(posedge clock);
strobe_out <= 1'b0;
end
initial clock = 0;
always #50 clock = ~clock;
initial reset = 1;
initial #1000 reset = 0;
initial enable = 0;
initial #2000 enable = 1;
initial signal_in = 16'h1;
initial #500000 signal_in = 16'h7fff;
initial #1000000 signal_in = 16'h8000;
initial #1500000 signal_in = 16'hffff;
initial $dumpfile("decim.vcd");
initial $dumpvars(0,cic_decim_tb);
initial #10000000 $finish;
endmodule // cic_decim_tb
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