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Diffstat (limited to 'gr-sounder/src/fpga/lib/lfsr.v')
| -rw-r--r-- | gr-sounder/src/fpga/lib/lfsr.v | 46 |
1 files changed, 0 insertions, 46 deletions
diff --git a/gr-sounder/src/fpga/lib/lfsr.v b/gr-sounder/src/fpga/lib/lfsr.v deleted file mode 100644 index bd0743e9c..000000000 --- a/gr-sounder/src/fpga/lib/lfsr.v +++ /dev/null @@ -1,46 +0,0 @@ -// -*- verilog -*- -// -// USRP - Universal Software Radio Peripheral -// -// Copyright (C) 2007 Corgan Enterprises LLC -// -// 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 lfsr(clk_i,rst_i,ena_i,strobe_i,mask_i,pn_o); - parameter width = 16; - - input clk_i; - input rst_i; - input ena_i; - input strobe_i; - input [width-1:0] mask_i; - - output pn_o; - - reg [width-1:0] shifter; - - wire parity = ^(shifter & mask_i); - - always @(posedge clk_i) - if (rst_i | ~ena_i) - shifter <= #5 1; - else - if (strobe_i) - shifter <= #5 {shifter[width-2:0],parity}; - - assign pn_o = shifter[0]; - -endmodule // lfsr |