reset_fc 实现

Signed-off-by: a1012112796 <1012112796@qq.com>

board/board.c

@@ -72,3 +72,23 @@ INIT_ENV_EXPORT(fal_init);
 
 extern int iap_main_entry(void);
 INIT_ENV_EXPORT(iap_main_entry);
+
+#include <stdlib.h>
+static void reset_fc(int argc, char **argv)
+{
+    int second = 20; // default 20s
+
+    if (argc > 1)
+    {
+        second = atoi(argv[1]);
+    }
+
+    rt_kprintf("\n the system will be reset after %ds\n", second);
+    rt_enter_critical();
+    rt_console_set_device(RT_NULL);
+    rt_exit_critical();
+    rt_thread_delay(1000 * second);
+
+    rt_hw_cpu_reset();
+}
+MSH_CMD_EXPORT(reset_fc, resetfc cmd);