diff options
Diffstat (limited to 'fpga/usrp2/gpmc/cross_clock_reader.v')
| -rw-r--r-- | fpga/usrp2/gpmc/cross_clock_reader.v | 46 |
1 files changed, 0 insertions, 46 deletions
diff --git a/fpga/usrp2/gpmc/cross_clock_reader.v b/fpga/usrp2/gpmc/cross_clock_reader.v deleted file mode 100644 index b4cdb79c5..000000000 --- a/fpga/usrp2/gpmc/cross_clock_reader.v +++ /dev/null @@ -1,46 +0,0 @@ -// -// Copyright 2011-2012 Ettus Research 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 3 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, see <http://www.gnu.org/licenses/>. -// - -module cross_clock_reader - #( - parameter WIDTH = 1, - parameter DEFAULT = 0 - ) - ( - input clk, input rst, - input [WIDTH-1:0] in, - output reg [WIDTH-1:0] out - ); - - reg [WIDTH-1:0] shadow0, shadow1; - reg [2:0] count; - - always @(posedge clk) begin - if (rst) begin - out <= DEFAULT; - shadow0 <= DEFAULT; - shadow1 <= DEFAULT; - count <= 0; - end - else if (shadow0 == shadow1) count <= count + 1; - else count <= 0; - shadow0 <= in; - shadow1 <= shadow0; - if (count == 3'b111) out <= shadow1; - end - -endmodule //cross_clock_reader |