From fd3e84941de463fa1a7ebab0a69515b4bf2614cd Mon Sep 17 00:00:00 2001
From: Martin Braun <martin.braun@ettus.com>
Date: Tue, 7 Oct 2014 11:25:20 +0200
Subject: Removed copy of FPGA source files.

---
 fpga/usrp2/sdr_lib/cic_decim.v | 88 ------------------------------------------
 1 file changed, 88 deletions(-)
 delete mode 100755 fpga/usrp2/sdr_lib/cic_decim.v

(limited to 'fpga/usrp2/sdr_lib/cic_decim.v')

diff --git a/fpga/usrp2/sdr_lib/cic_decim.v b/fpga/usrp2/sdr_lib/cic_decim.v
deleted file mode 100755
index e6b6e9590..000000000
--- a/fpga/usrp2/sdr_lib/cic_decim.v
+++ /dev/null
@@ -1,88 +0,0 @@
-// -*- 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
-  #(parameter bw = 16, parameter N = 4, parameter log2_of_max_rate = 7)
-    (input clock,
-     input reset,
-     input enable,
-     input [7:0] rate,
-     input strobe_in,
-     input strobe_out,
-     input [bw-1:0] signal_in,
-     output reg [bw-1:0] signal_out);
-
-   localparam 	     maxbitgain = N * log2_of_max_rate;
-   
-   wire [bw+maxbitgain-1:0] signal_in_ext;
-   reg [bw+maxbitgain-1:0]  integrator [0:N-1];
-   reg [bw+maxbitgain-1:0]  differentiator [0:N-1];
-   reg [bw+maxbitgain-1:0]  pipeline [0:N-1];
-   reg [bw+maxbitgain-1:0]  sampler;
-   
-   integer 		    i;
-   
-   sign_extend #(bw,bw+maxbitgain) 
-     ext_input (.in(signal_in),.out(signal_in_ext));
-   
-   always @(posedge clock)
-     if(~enable)
-       for(i=0;i<N;i=i+1)
-	 integrator[i] <= 0;
-     else if (strobe_in)
-       begin
-	  integrator[0] <= integrator[0] + signal_in_ext;
-	  for(i=1;i<N;i=i+1)
-	    integrator[i] <= integrator[i] + integrator[i-1];
-       end	
-   
-   always @(posedge clock)
-     if(~enable)
-       begin
-	  sampler <= 0;
-	  for(i=0;i<N;i=i+1)
-	    begin
-	       pipeline[i] <= 0;
-	       differentiator[i] <= 0;
-	    end
-       end
-     else if (strobe_out)
-       begin
-	  sampler <= integrator[N-1];
-	  differentiator[0] <= sampler;
-	  pipeline[0] <= sampler - differentiator[0];
-	  for(i=1;i<N;i=i+1)
-	    begin
-	       differentiator[i] <= pipeline[i-1];
-	       pipeline[i] <= pipeline[i-1] - differentiator[i];
-	    end
-       end // if (enable && strobe_out)
-   
-   wire [bw-1:0] signal_out_unreg;
-   
-   cic_dec_shifter #(bw)
-     cic_dec_shifter(rate,pipeline[N-1],signal_out_unreg);
-
-   always @(posedge clock)
-     signal_out <= signal_out_unreg;
-   
-endmodule // cic_decim
-- 
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