diff --git a/main.c b/main.c
new file mode 100644
index 0000000..1f9bbea
--- /dev/null
+++ b/main.c
@@ -0,0 +1,35 @@
+/*
+Copyright (c) 2019 zoomdy@163.com
+RV-LINK is licensed under the Mulan PSL v1.
+You can use this software according to the terms and conditions of the Mulan PSL v1.
+You may obtain a copy of Mulan PSL v1 at:
+    http://license.coscl.org.cn/MulanPSL
+THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND, EITHER EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT, MERCHANTABILITY OR FIT FOR A PARTICULAR
+PURPOSE.
+See the Mulan PSL v1 for more details.
+ */
+#include "rvl-led.h"
+#include "rvl-serial.h"
+#include "rvl-usb-serial.h"
+#include "gdb-serial.h"
+#include "gdb-server.h"
+
+
+int main(void)
+{
+    rvl_led_init();
+    rvl_serial_init();
+    usb_serial_init();
+    gdb_serial_init();
+    gdb_server_init();
+
+
+    for(;;) {
+        rvl_led_poll();
+        rvl_serial_poll();
+        usb_serial_recv_poll();
+        usb_serial_send_poll();
+        gdb_server_poll();
+    }
+}