docs: add command example to get-started/establish-serial-connection

docs/en/get-started/establish-serial-connection.rst

@@ -183,12 +183,34 @@ For devices downloaded using a USB-to-UART bridge, you can run the following com
 
     idf.py -p PORT [-b BAUD] flash
 
-You can change the flasher baud rate by replacing ``BAUD`` with the baud rate you need. The default baud rate is ``460800``.
+Replace ``PORT`` with the device name for the serial port of your {IDF_TARGET_NAME} board. Please note that ``-b`` is an optional argument. If you do not specify the baud rate, the default baud rate is ``460800``. If you need to specify the baud rate, replace ``BAUD`` with the baud rate you need.
+
+To check the port name on Windows, please refer to `check-port-on-windows`_. For Linux and macOS users, please see `check-port-on-linux-and-macos`_.
+
+For example, if the port name is ``COM3`` on Windows and your desired baud rate is ``115200``, you can run the following command to flash the device:
+
+.. code-block:: bash
+
+    idf.py -p COM3 -b 115200 flash
+
+For Linux users, if the port name is ``/dev/ttyUSB0`` and the desired baud rate is ``115200``, you can run the following command to flash the device:
+
+.. code-block:: bash
+
+    idf.py -p /dev/ttyUSB0 -b 115200 flash
+
+For macOS users, if the port name is ``/dev/cu.usbserial-1401`` and the desired baud rate is ``115200``, you can run the following command to flash the device:
+
+.. code-block:: bash
+
+    idf.py -p /dev/cu.usbserial-1401 -b 115200 flash
 
 .. note::
 
     If the device does not support the auto download mode, you need to get into the download mode manually. To do so, press and hold the ``BOOT`` button and then press the ``RESET`` button once. After that release the ``BOOT`` button.
 
+.. _check-port-on-windows:
+
 Check Port on Windows
 ---------------------
 
@@ -210,6 +232,8 @@ Figures below show serial port for ESP32 DevKitC and ESP32 WROVER KIT
 
     Two USB Serial Ports of ESP-WROVER-KIT in Windows Device Manager
 
+.. _check-port-on-linux-and-macos:
+
 Check Port on Linux and macOS
 -----------------------------
 

docs/zh_CN/get-started/establish-serial-connection.rst

@@ -183,12 +183,34 @@
 
     idf.py -p PORT [-b BAUD] flash
 
-如需改变烧录器的波特率，请用需要的波特率代替 ``BAUD``。默认的波特率为 ``460800``。
+将 ``PORT`` 替换为 {IDF_TARGET_NAME} 开发板的串口名称。``-b`` 为可选参数，默认的波特率为 ``460800``。如需改变烧录器的波特率，请用需要的波特率代替 ``BAUD``。
+
+要查看串口名称，Windows 用户请参考 `check-port-on-windows`_，Linux 与 macOS 用户请参考 `check-port-on-linux-and-macos`_。
+
+例如，Windows 平台上串口名称为 ``COM3``，所需波特率为 ``115200``，可使用如下命令烧录开发板：
+
+.. code-block:: bash
+
+    idf.py -p COM3 -b 115200 flash
+
+Linux 平台上串口名称为 ``/dev/ttyUSB0``，所需波特率为 ``115200``，可使用如下命令烧录开发板：
+
+.. code-block:: bash
+
+    idf.py -p /dev/ttyUSB0 -b 115200 flash
+
+macOS 平台上串口名称为 ``/dev/cu.usbserial-1401``，所需波特率为 ``115200``，可使用如下命令烧录开发板：
+
+.. code-block:: bash
+
+    idf.py -p /dev/cu.usbserial-1401 -b 115200 flash
 
 .. note::
 
     如果设备不支持自动下载模式，则需要手动进入下载模式。请按住 ``BOOT`` 按钮，同时按一下 ``RESET`` 按钮。之后，松开 ``BOOT`` 按钮。
 
+.. _check-port-on-windows:
+
 在 Windows 上查看端口
 ---------------------
 
@@ -210,6 +232,8 @@
 
     Windows 设备管理器中 ESP-WROVER-KIT 的两个 USB 串行端口
 
+.. _check-port-on-linux-and-macos:
+
 在 Linux 和 macOS 上查看端口
 -----------------------------
 

docs/zh_CN/index.rst

@@ -9,7 +9,7 @@ ESP-IDF 编程指南
 
         快速预览中不包括 API 函数文档。如需生成完整的文档，请在 MR 中添加 docs_full 标签。
 
-这里是乐鑫 IoT 开发框架 (`esp-idf <https://github.com/espressif/esp-idf>`_) 的文档中心。ESP-IDF 是 `ESP32、ESP32-S ESP32-C、ESP32-H 和 ESP32-P <https://www.espressif.com/en/products/socs>`_ 系列芯片的官方开发框架。
+这里是乐鑫 IoT 开发框架 (`esp-idf <https://github.com/espressif/esp-idf>`_) 的文档中心。ESP-IDF 是 `ESP32、ESP32-S、ESP32-C、ESP32-H 和 ESP32-P <https://www.espressif.com/en/products/socs>`_ 系列芯片的官方开发框架。
 
 .. only:: html