added license headers; revised serial interaction

1 files changed, 11 insertions, 0 deletions

diff --git a/source/dac.cpp b/source/dac.cpp
index c7c250d..8981fc3 100644
--- a/source/dac.cpp
+++ b/source/dac.cpp
@@ -1,3 +1,14 @@
+/**
+ * @file dac.cpp
+ * @brief Wrapper for ChibiOS's DACDriver.
+ *
+ * Copyright (C) 2020 Clyne Sullivan
+ *
+ * Distributed under the GNU GPL v3 or later. You should have received a copy of
+ * the GNU General Public License along with this program.
+ * If not, see <https://www.gnu.org/licenses/>.
+ */
+
 #include "dac.hpp"
 
 //static const DACConversionGroup dacGroupConfig = {