FTP可以连接成功

Drivers/BSP/NET/lftpd/lftpd.c

@@ -607,6 +607,9 @@ int lftpd_start(const char *directory, int port, lftpd_t *lftpd)
         handle_control_channel(&client);
         lftpd->client = NULL;
 
+        /* 等待 CH395F 稳定（Trap 09） */
+        vTaskDelay(pdMS_TO_TICKS(200));
+
         /* standalone mode: socket was closed in handle_control_channel,
          * loop back to create a new listener */
     }