diff --git a/cdc_device_definition.c b/cdc_device_definition.c
index 15cb596..c5d96e0 100644
--- a/cdc_device_definition.c
+++ b/cdc_device_definition.c
@@ -3,6 +3,23 @@
  *
  *  Created on: Dec 26, 2011
  *      Author: Doug
+ *
+ * Copyright (C) 2011-2012 Doug Brown
+ *
+ * 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, Fifth Floor, Boston, MA  02110-1301, USA.
+ *
  */
 
 #include "LUFA/Drivers/USB/USB.h"
diff --git a/cdc_device_definition.h b/cdc_device_definition.h
index 70050ac..4f91cb0 100644
--- a/cdc_device_definition.h
+++ b/cdc_device_definition.h
@@ -3,6 +3,23 @@
  *
  *  Created on: Dec 26, 2011
  *      Author: Doug
+ *
+ * Copyright (C) 2011-2012 Doug Brown
+ *
+ * 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, Fifth Floor, Boston, MA  02110-1301, USA.
+ *
  */
 
 #ifndef CDC_DEVICE_DEFINITION_H_
diff --git a/chip_id.h b/chip_id.h
index d9414d8..c83fe05 100644
--- a/chip_id.h
+++ b/chip_id.h
@@ -3,6 +3,23 @@
  *
  *  Created on: Dec 10, 2011
  *      Author: Doug
+ *
+ * Copyright (C) 2011-2012 Doug Brown
+ *
+ * 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, Fifth Floor, Boston, MA  02110-1301, USA.
+ *
  */
 
 #ifndef CHIP_ID_H_
diff --git a/delay.c b/delay.c
index a04a45b..f3990d5 100644
--- a/delay.c
+++ b/delay.c
@@ -3,6 +3,23 @@
  *
  *  Created on: Dec 4, 2011
  *      Author: Doug
+ *
+ * Copyright (C) 2011-2012 Doug Brown
+ *
+ * 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, Fifth Floor, Boston, MA  02110-1301, USA.
+ *
  */
 
 #include "delay.h"
diff --git a/delay.h b/delay.h
index 7841e05..eeb1215 100644
--- a/delay.h
+++ b/delay.h
@@ -3,6 +3,23 @@
  *
  *  Created on: Dec 4, 2011
  *      Author: Doug
+ *
+ * Copyright (C) 2011-2012 Doug Brown
+ *
+ * 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, Fifth Floor, Boston, MA  02110-1301, USA.
+ *
  */
 
 #ifndef DELAY_H_
diff --git a/external_mem.c b/external_mem.c
index a3f27fa..e3fa69e 100644
--- a/external_mem.c
+++ b/external_mem.c
@@ -3,6 +3,23 @@
  *
  *  Created on: Nov 25, 2011
  *      Author: Doug
+ *
+ * Copyright (C) 2011-2012 Doug Brown
+ *
+ * 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, Fifth Floor, Boston, MA  02110-1301, USA.
+ *
  */
 
 #include "external_mem.h"
diff --git a/external_mem.h b/external_mem.h
index 6b1afa9..50cd809 100644
--- a/external_mem.h
+++ b/external_mem.h
@@ -3,6 +3,23 @@
  *
  *  Created on: Nov 25, 2011
  *      Author: Doug
+ *
+ * Copyright (C) 2011-2012 Doug Brown
+ *
+ * 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, Fifth Floor, Boston, MA  02110-1301, USA.
+ *
  */
 
 #ifndef EXTERNAL_MEM_H_
diff --git a/main.c b/main.c
index ca396b9..8319d63 100644
--- a/main.c
+++ b/main.c
@@ -3,6 +3,23 @@
  *
  *  Created on: Nov 25, 2011
  *      Author: Doug
+ *
+ * Copyright (C) 2011-2012 Doug Brown
+ *
+ * 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, Fifth Floor, Boston, MA  02110-1301, USA.
+ *
  */
 
 #include <avr/io.h>
diff --git a/mcp23s17.c b/mcp23s17.c
index 1b6af9c..9b40420 100644
--- a/mcp23s17.c
+++ b/mcp23s17.c
@@ -3,6 +3,23 @@
  *
  *  Created on: Nov 25, 2011
  *      Author: Doug
+ *
+ * Copyright (C) 2011-2012 Doug Brown
+ *
+ * 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, Fifth Floor, Boston, MA  02110-1301, USA.
+ *
  */
 
 #include "mcp23s17.h"
diff --git a/mcp23s17.h b/mcp23s17.h
index df541e0..a5d19c2 100644
--- a/mcp23s17.h
+++ b/mcp23s17.h
@@ -3,6 +3,23 @@
  *
  *  Created on: Nov 25, 2011
  *      Author: Doug
+ *
+ * Copyright (C) 2011-2012 Doug Brown
+ *
+ * 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, Fifth Floor, Boston, MA  02110-1301, USA.
+ *
  */
 
 #ifndef MCP23S17_H_
diff --git a/ports.c b/ports.c
index 329ee34..b54a3b8 100644
--- a/ports.c
+++ b/ports.c
@@ -3,6 +3,23 @@
  *
  *  Created on: Nov 26, 2011
  *      Author: Doug
+ *
+ * Copyright (C) 2011-2012 Doug Brown
+ *
+ * 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, Fifth Floor, Boston, MA  02110-1301, USA.
+ *
  */
 
 #include "ports.h"
diff --git a/ports.h b/ports.h
index 984a8f8..1fff456 100644
--- a/ports.h
+++ b/ports.h
@@ -3,6 +3,23 @@
  *
  *  Created on: Nov 26, 2011
  *      Author: Doug
+ *
+ * Copyright (C) 2011-2012 Doug Brown
+ *
+ * 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, Fifth Floor, Boston, MA  02110-1301, USA.
+ *
  */
 
 #ifndef PORTS_H_
diff --git a/programmer_protocol.h b/programmer_protocol.h
index 3c3336a..5b532b9 100644
--- a/programmer_protocol.h
+++ b/programmer_protocol.h
@@ -3,8 +3,27 @@
  *
  *  Created on: Dec 26, 2011
  *      Author: Doug
+ *
+ * Copyright (C) 2011-2012 Doug Brown
+ *
+ * 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, Fifth Floor, Boston, MA  02110-1301, USA.
+ *
  */
 
+
+
 #ifndef PROGRAMMER_PROTOCOL_H_
 #define PROGRAMMER_PROTOCOL_H_
 
diff --git a/tests/simm_electrical_test.c b/tests/simm_electrical_test.c
index 3ba91e1..840c6b8 100644
--- a/tests/simm_electrical_test.c
+++ b/tests/simm_electrical_test.c
@@ -3,6 +3,23 @@
  *
  *  Created on: Nov 26, 2011
  *      Author: Doug
+ *
+ * Copyright (C) 2011-2012 Doug Brown
+ *
+ * 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, Fifth Floor, Boston, MA  02110-1301, USA.
+ *
  */
 
 #include "simm_electrical_test.h"
diff --git a/tests/simm_electrical_test.h b/tests/simm_electrical_test.h
index 16aa439..5370d63 100644
--- a/tests/simm_electrical_test.h
+++ b/tests/simm_electrical_test.h
@@ -3,6 +3,23 @@
  *
  *  Created on: Nov 26, 2011
  *      Author: Doug
+ *
+ * Copyright (C) 2011-2012 Doug Brown
+ *
+ * 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, Fifth Floor, Boston, MA  02110-1301, USA.
+ *
  */
 
 #ifndef SIMM_ELECTRICAL_TEST_H_
diff --git a/usb_serial/usb_serial.c b/usb_serial/usb_serial.c
index fe8cb67..ea241b9 100644
--- a/usb_serial/usb_serial.c
+++ b/usb_serial/usb_serial.c
@@ -3,6 +3,23 @@
  *
  *  Created on: Dec 9, 2011
  *      Author: Doug
+ *
+ * Copyright (C) 2011-2012 Doug Brown
+ *
+ * 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, Fifth Floor, Boston, MA  02110-1301, USA.
+ *
  */
 
 #include "usb_serial.h"
diff --git a/usb_serial/usb_serial.h b/usb_serial/usb_serial.h
index 9c1065c..2c990f7 100644
--- a/usb_serial/usb_serial.h
+++ b/usb_serial/usb_serial.h
@@ -3,6 +3,23 @@
  *
  *  Created on: Dec 9, 2011
  *      Author: Doug
+ *
+ * Copyright (C) 2011-2012 Doug Brown
+ *
+ * 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, Fifth Floor, Boston, MA  02110-1301, USA.
+ *
  */
 
 #ifndef USB_SERIAL_H_