3 files changed, 15 insertions, 0 deletions
diff --git a/src/main.cc b/src/main.cc
index 39a3e38..44a0c95 100644
--- a/src/main.cc
+++ b/src/main.cc
@@ -1,3 +1,8 @@
+/*
+ * Copyright 2023 Birte Kristina Friesel
+ *
+ * SPDX-License-Identifier: BSD-2-Clause
+ */
 #include <avr/io.h>
 #include <stdlib.h>
 
diff --git a/src/system.cc b/src/system.cc
index 5eb3f77..273a8a4 100644
--- a/src/system.cc
+++ b/src/system.cc
@@ -1,3 +1,8 @@
+/*
+ * Copyright 2023 Birte Kristina Friesel
+ *
+ * SPDX-License-Identifier: BSD-2-Clause
+ */
 #include <avr/io.h>
 #include <avr/interrupt.h>
 #include <avr/wdt.h>
diff --git a/src/system.h b/src/system.h
index d23caad..c2abe4a 100644
--- a/src/system.h
+++ b/src/system.h
@@ -1,3 +1,8 @@
+/*
+ * Copyright 2023 Birte Kristina Friesel
+ *
+ * SPDX-License-Identifier: BSD-2-Clause
+ */
 #ifndef __SYSTEM_H__
 #define __SYSTEM_H__