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author | Josh Blum <josh@joshknows.com> | 2010-01-22 11:46:58 -0800 |
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committer | Josh Blum <josh@joshknows.com> | 2010-01-22 11:46:58 -0800 |
commit | a170b9b42345794429486dd4f3316e84ea2cc871 (patch) | |
tree | 2483dfa9eb239e3c2cec5701da6f2f5b5940d7ad /usrp1/sdr_lib/strobe_gen.v | |
parent | 320c70016f8798cb73c8d02eaa3728df48b5b3ab (diff) | |
download | uhd-a170b9b42345794429486dd4f3316e84ea2cc871.tar.gz uhd-a170b9b42345794429486dd4f3316e84ea2cc871.tar.bz2 uhd-a170b9b42345794429486dd4f3316e84ea2cc871.zip |
Moved usrp1 fpga files into usrp1 subdir.
Diffstat (limited to 'usrp1/sdr_lib/strobe_gen.v')
-rw-r--r-- | usrp1/sdr_lib/strobe_gen.v | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/usrp1/sdr_lib/strobe_gen.v b/usrp1/sdr_lib/strobe_gen.v new file mode 100644 index 000000000..ba1a8ab28 --- /dev/null +++ b/usrp1/sdr_lib/strobe_gen.v @@ -0,0 +1,46 @@ +// -*- 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 strobe_gen + ( input clock, + input reset, + input enable, + input [7:0] rate, // Rate should be 1 LESS THAN your desired divide ratio + input strobe_in, + output wire strobe ); + +// parameter width = 8; + + reg [7:0] counter; + assign strobe = ~|counter && enable && strobe_in; + + always @(posedge clock) + if(reset | ~enable) + counter <= #1 8'd0; + else if(strobe_in) + if(counter == 0) + counter <= #1 rate; + else + counter <= #1 counter - 8'd1; + +endmodule // strobe_gen |