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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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
//
module gen_sync
( input clock,
input reset,
input enable,
input [7:0] rate,
output wire sync );
// parameter width = 8;
reg [7:0] counter;
assign sync = |(((rate+1)>>1)& counter);
always @(posedge clock)
if(reset || ~enable)
counter <= #1 0;
else if(counter == rate)
counter <= #1 0;
else
counter <= #1 counter + 8'd1;
endmodule // gen_sync
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