3 files changed, 39 insertions, 3 deletions
diff --git a/fpga/usrp3/lib/timing/time_compare.v b/fpga/usrp3/lib/timing/time_compare.v
index 272c41b65..eded432e1 100644
--- a/fpga/usrp3/lib/timing/time_compare.v
+++ b/fpga/usrp3/lib/timing/time_compare.v
@@ -1,7 +1,19 @@
 //
 // 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/>.
+//
 
 
 // 64 bits worth of ticks
diff --git a/fpga/usrp3/lib/timing/time_transfer_tb.v b/fpga/usrp3/lib/timing/time_transfer_tb.v
index af1207605..288540702 100644
--- a/fpga/usrp3/lib/timing/time_transfer_tb.v
+++ b/fpga/usrp3/lib/timing/time_transfer_tb.v
@@ -1,7 +1,19 @@
 //
 // Copyright 2011 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/>.
+//
 
 
 `timescale 1ns / 1ps
diff --git a/fpga/usrp3/lib/timing/timekeeper.v b/fpga/usrp3/lib/timing/timekeeper.v
index 627472094..f20c48d4b 100644
--- a/fpga/usrp3/lib/timing/timekeeper.v
+++ b/fpga/usrp3/lib/timing/timekeeper.v
@@ -1,7 +1,19 @@
 //
 // Copyright 2013 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 timekeeper
   #(parameter BASE = 0)