diff --git a/applications/alarm.c b/applications/alarm.c
new file mode 100644
index 0000000..3245e68
--- /dev/null
+++ b/applications/alarm.c
@@ -0,0 +1,9 @@
+/*
+ * Copyright (c) 2006-2021, RT-Thread Development Team
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ * 2023-06-19     murmur       the first version
+ */