From a2c00f5cff7407ff10fc6c812d06fefe52c0b6a3 Mon Sep 17 00:00:00 2001
From: Johnathan Corgan
Date: Sun, 28 Feb 2010 12:47:43 -0800
Subject: Remove usrp1 and usrp2 FPGA files.  These are now hosted at:

git://ettus.sourcerepo.com/ettus/fpga.git

...under the 'usrp1' and 'usrp2' top-level directories.
---
 usrp2/fpga/sdr_lib/cic_interp.v | 87 -----------------------------------------
 1 file changed, 87 deletions(-)
 delete mode 100755 usrp2/fpga/sdr_lib/cic_interp.v

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

diff --git a/usrp2/fpga/sdr_lib/cic_interp.v b/usrp2/fpga/sdr_lib/cic_interp.v
deleted file mode 100755
index 9b6928aa1..000000000
--- a/usrp2/fpga/sdr_lib/cic_interp.v
+++ /dev/null
@@ -1,87 +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_interp
-  #(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);
-   
-   integer 	     i;
-   localparam 	     maxbitgain = (N-1)*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];
-   
-   sign_extend #(bw,bw+maxbitgain) 
-     ext_input (.in(signal_in),.out(signal_in_ext));
-   
-   //FIXME Note that this section has pipe and diff reversed
-   // It still works, but is confusing
-   always @(posedge clock)
-     if(reset | ~enable)
-       for(i=0;i<N;i=i+1)
-	 integrator[i] <= 0;
-     else if (enable & strobe_out)
-       begin
-	  if(strobe_in)
-	    integrator[0] <= integrator[0] + pipeline[N-1];
-	  for(i=1;i<N;i=i+1)
-	    integrator[i] <= integrator[i] + integrator[i-1];
-       end
-   
-   always @(posedge clock)
-     if(reset | ~enable)
-       begin
-	  for(i=0;i<N;i=i+1)
-	    begin
-	       differentiator[i] <= 0;
-	       pipeline[i] <= 0;
- 	    end
-       end
-     else if (enable && strobe_in)
-       begin
-	  differentiator[0] <= signal_in_ext;
-	  pipeline[0] <= signal_in_ext - 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
-
-   wire [bw-1:0] signal_out_unreg;
-   cic_int_shifter #(bw)
-     cic_int_shifter(rate,integrator[N-1],signal_out_unreg);
-   
-   always @(posedge clock)
-     signal_out <= signal_out_unreg;
-   
-endmodule // cic_interp
-
-- 
cgit