Add ESP32-S2-DevKitM-1 User Guide

Update 1 based on comments

Fix typo

Add annotation to UFL connector

Add UFL connector to description table

docs/en/get-started/index.rst

@@ -91,6 +91,7 @@ If you have one of {IDF_TARGET_NAME} development boards listed below, you can cl
         :maxdepth: 1
 
         ESP32-S2-Saola-1 <../hw-reference/esp32s2/user-guide-saola-1-v1.2>
+        ESP32-S2-DevKitM-1(U) <../hw-reference/esp32s2/user-guide-devkitm-1-v1>
         ESP32-S2-Kaluga-Kit <../hw-reference/esp32s2/user-guide-esp32-s2-kaluga-1-kit>
 
 .. _get-started-step-by-step:

docs/en/hw-reference/esp32s2/user-guide-devkitm-1-v1.rst

@@ -0,0 +1,227 @@
+=====================
+ESP32-S2-DevKitM-1(U)
+=====================
+
+:link_to_translation:`zh_CN:[中文]`
+
+This user guide provides information on Espressif's small-sized development board ESP32-S2-DevKitM-1(U).
+
+ESP32-S2-DevKitM-1(U) is a general-purpose development board based on `ESP32-S2FH4 <https://www.espressif.com/sites/default/files/documentation/esp32-s2_datasheet_en.pdf>`__ chip, which falls into ESP32-S2 chip family. With a rich peripheral set and optimized pinout, this board allows rapid prototyping.
+
+ESP32-S2-DevKitM-1 is embedded with `ESP32-S2-MINI-1 <https://www.espressif.com/sites/default/files/documentation/esp32-s2-mini-1_esp32-s2-mini-1u_datasheet_en.pdf>`__ module (on-board PCB antenna), while ESP32-S2-DevKitM-1U with `ESP32-S2-MINI-1U <https://www.espressif.com/sites/default/files/documentation/esp32-s2-mini-1_esp32-s2-mini-1u_datasheet_en.pdf>`__ module (U.FL connector to support external IPEX antenna).
+
++----------------------+-----------------------+
+| |ESP32-S2-DevKitM-1| | |ESP32-S2-DevKitM-1U| | 
++----------------------+-----------------------+
+|  ESP32-S2-DevKitM-1  |  ESP32-S2-DevKitM-1U  | 
++----------------------+-----------------------+
+
+.. |ESP32-S2-DevKitM-1| image:: ../../../_static/esp32-s2-devkitm-1-v1-isometric.png
+
+.. |ESP32-S2-DevKitM-1U| image:: ../../../_static/esp32-s2-devkitm-1u-v1-isometric.png
+
+The document consists of the following major sections:
+
+- `Getting started`_: Provides an overview of the ESP32-S2-DevKitM-1(U) and hardware/software setup instructions to get started.
+- `Hardware reference`_: Provides more detailed information about the ESP32-S2-DevKitM-1(U)'s hardware.
+- `Related Documents`_: Gives links to related documentation.
+
+Getting Started
+===============
+
+This section describes how to get started with ESP32-S2-DevKitM-1(U). It begins with a few introductory sections about the ESP32-S2-DevKitM-1(U), then Section `Start Application Development`_ provides instructions on how to get the ESP32-S2-DevKitM-1(U) ready and flash firmware into it.
+
+Overview
+--------
+
+ESP32-S2-DevKitM-1(U) is entry-level development board equipped with either ESP32-S2-MINI-1 or ESP32-S2-MINI-1U module. Most of the I/O pins on the module are broken out to the pin headers on both sides for easy interfacing. Developers can either connect peripherals with jumper wires or mount ESP32-S2-DevKitM-1(U) on a breadboard. 
+
+Contents and Packaging
+----------------------
+
+Retail orders
+^^^^^^^^^^^^^
+
+If you order a few samples, each ESP32-S2-DevKitM-1(U) comes in an individual package in either antistatic bag or any packaging depending on your retailer.
+
+For retail orders, please go to https://www.espressif.com/en/company/contact/buy-a-sample.
+
+
+Wholesale Orders
+^^^^^^^^^^^^^^^^
+
+If you order in bulk, the boards come in large cardboard boxes.
+
+For wholesale orders, please check `Espressif Product Ordering Information <https://www.espressif.com/sites/default/files/documentation/espressif_products_ordering_information_en.pdf>`_ (PDF).
+
+Description of Components
+-------------------------
+
+.. _user-guide-devkitm-1-v1-board-front:
+
+.. figure:: ../../../_static/esp32-s2-devkitm-1-v1-annotated-photo.png
+    :align: center
+    :alt: ESP32-S2-DevKitM-1 - front
+    :figclass: align-center
+
+    ESP32-S2-DevKitM-1 - front
+
+.. figure:: ../../../_static/esp32-s2-devkitm-1u-v1-annotated-photo.png
+    :align: center
+    :alt: ESP32-S2-DevKitM-1U - front
+    :figclass: align-center
+
+    ESP32-S2-DevKitM-1U - front
+
+.. list-table::
+   :widths: 30 70
+   :header-rows: 1
+
+   * - Key Component
+     - Description
+   * - ESP32-S2-MINI-1 or ESP32-S2-MINI-1U
+     - ESP32-S2-MINI-1 and ESP32-S2-MINI-1U are two powerful, generic Wi-Fi MCU modules that integrate ESP32-S2FH4 chip. ESP32-S2-MINI-1 comes with a PCB antenna, and ESP32-S2-MINI-1U with a U.FL connector for external IPEX antenna. They both feature a 4 MB external SPI flash.
+   * - 3.3 V Power On LED
+     - Turns on when the USB power is connected to the board.
+   * - USB to UART Bridge
+     - Single USB-UART bridge chip provides transfer rates up to 3 Mbps.
+   * - I/O Connector
+     - All available GPIO pins (except for the SPI bus for flash) are broken out to the pin headers on the board. Users can program ESP32-S2FH4 chip to enable multiple functions such as SPI, I2S, UART, I2C, touch sensors, PWM etc. For details, please see :ref:`user-guide-devkitm-1-v1-header-blocks`.
+   * - Reset Button
+     - Reset button.
+   * - Micro-USB Port
+     - USB interface. Power supply for the board as well as the communication interface between a computer and the ESP32-S2FH4 chip.
+   * - Boot Button
+     - Download button. Holding down **Boot** and then pressing **Reset** initiates Firmware Download mode for downloading firmware through the serial port.
+   * - RGB LED
+     - Addressable RGB LED (WS2812), driven by GPIO18.
+   * - 5 V to 3.3 V LDO
+     - Power regulator that converts a 5 V supply into a 3.3 V output.
+   * - U.FL Connector
+     - On **ESP32-S2-MINI-1U** module only. Connects to an external IPEX antenna.
+
+
+Start Application Development
+-----------------------------
+
+Before powering up your ESP32-S2-DevKitM-1(U), please make sure that it is in good condition with no obvious signs of damage.
+
+Required Hardware
+^^^^^^^^^^^^^^^^^
+
+- ESP32-S2-DevKitM-1(U)
+
+  + For ESP32-S2-DevKitM-1U, an IPEX antenna is also required.
+  
+- USB 2.0 cable (Standard-A to Micro-B)
+- Computer running Windows, Linux, or macOS
+
+Software Setup
+^^^^^^^^^^^^^^
+
+Please proceed to :doc:`../../get-started/index`, where Section :ref:`get-started-step-by-step` will quickly help you set up the development environment and then flash an application example into your ESP32-S2-DevKitM-1(U).
+
+.. note::
+    
+    ESP32-S2 family chip only is only supported in ESP-IDF master or version v4.2 and higher.
+
+Hardware Reference
+==================
+
+Block Diagram
+-------------
+
+A block diagram below shows the components of ESP32-S2-DevKitM-1 and their interconnections.
+
+.. figure:: ../../../_static/esp32-s2-devkitm-1-v1-block-diagram.png
+    :align: center
+    :scale: 70%
+    :alt: ESP32-S2-DevKitM-1(U) (click to enlarge)
+    :figclass: align-center
+
+    ESP32-S2-DevKitM-1(U) (click to enlarge)
+
+Power Supply Options
+^^^^^^^^^^^^^^^^^^^^
+
+There are three mutually exclusive ways to provide power to the board:
+
+- Micro USB port, default power supply
+- 5V and GND header pins
+- 3V3 and GND header pins
+
+It is recommended to use the first option: micro USB port.
+
+.. _user-guide-devkitm-1-v1-header-blocks:
+
+Header Block
+------------
+
+The two tables below provide the **Name** and **Function** of I/O header pins on both sides of the board, as shown in :ref:`user-guide-devkitm-1-v1-board-front`. The numbering and names are the same as in the `ESP32-S2-DevKitM-1(U) Schematics <https://dl.espressif.com/dl/schematics/ESP32-S2-DevKitM-1_V1_Schematics.pdf>`_ (PDF).
+
+J1
+^^^
+===  ====  =====  ========================================================
+No.  Name  Type   Function
+===  ====  =====  ========================================================
+1    3V3   P      3.3 V power supply
+2    0     I/O/T  RTC_GPIO0, GPIO0
+3    1     I/O/T  RTC_GPIO1, GPIO1, TOUCH1, ADC1_CH0
+4    2     I/O/T  RTC_GPIO2, GPIO2, TOUCH2, ADC1_CH1
+5    3     I/O/T  RTC_GPIO3, GPIO3, TOUCH3, ADC1_CH2
+6    4     I/O/T  RTC_GPIO4, GPIO4, TOUCH4, ADC1_CH3
+7    5     I/O/T  RTC_GPIO5, GPIO5, TOUCH5, ADC1_CH4
+8    6     I/O/T  RTC_GPIO6, GPIO6, TOUCH6, ADC1_CH5
+9    7     I/O/T  RTC_GPIO7, GPIO7, TOUCH7, ADC1_CH6
+10   8     I/O/T  RTC_GPIO8, GPIO8, TOUCH8, ADC1_CH7
+11   9     I/O/T  RTC_GPIO9, GPIO9, TOUCH9, ADC1_CH8, FSPIHD
+12   10    I/O/T  RTC_GPIO10, GPIO10, TOUCH10, ADC1_CH9, FSPICS0, FSPIIO4
+13   11    I/O/T  RTC_GPIO11, GPIO11, TOUCH11, ADC2_CH0, FSPID, FSPIIO5
+14   12    I/O/T  RTC_GPIO12, GPIO12, TOUCH12, ADC2_CH1, FSPICLK, FSPIIO6
+15   13    I/O/T  RTC_GPIO13, GPIO13, TOUCH13, ADC2_CH2, FSPIQ, FSPIIO7
+16   14    I/O/T  RTC_GPIO14, GPIO14, TOUCH14, ADC2_CH3, FSPIWP, FSPIDQS
+17   15    I/O/T  RTC_GPIO15, GPIO15, U0RTS, ADC2_CH4, XTAL_32K_P
+18   16    I/O/T  RTC_GPIO16, GPIO16, U0CTS, ADC2_CH5, XTAL_32K_N
+19   17    I/O/T  RTC_GPIO17,  GPIO17, U1TXD, ADC2_CH6, DAC_1
+20   5V    P      5 V power supply
+21   G     G      Ground
+===  ====  =====  ========================================================
+
+J3
+^^^
+===  ====  =====  ========================================================
+No.  Name  Type   Function
+===  ====  =====  ========================================================
+1    G     G      Ground
+2    RST   I      CHIP_PU
+3    46    I      GPIO46
+4    45    I/O/T  GPIO45
+5    RX    I/O/T  U0RXD, GPIO44, CLK_OUT2
+6    TX    I/O/T  U0TXD, GPIO43, CLK_OUT1
+7    42    I/O/T  MTMS, GPIO42
+8    41    I/O/T  MTDI, GPIO41, CLK_OUT1
+9    40    I/O/T  MTDO, GPIO40, CLK_OUT2
+10   39    I/O/T  MTCK, GPIO39, CLK_OUT3
+11   38    I/O/T  GPIO38, FSPIWP
+12   37    I/O/T  SPIDQS, GPIO37, FSPIQ
+13   36    I/O/T  SPIIO7, GPIO36, FSPICLK
+14   35    I/O/T  SPIIO6, GPIO35, FSPID
+15   34    I/O/T  SPIIO5, GPIO34, FSPICS0
+16   33    I/O/T  SPIIO4, GPIO33, FSPIHD
+17   26    I/O/T  SPICS1, GPIO26
+18   21    I/O/T  RTC_GPIO21, GPIO21
+19   20    I/O/T  RTC_GPIO20, GPIO20, U1CTS, ADC2_CH9, CLK_OUT1, USB_D+
+20   19    I/O/T  RTC_GPIO19, GPIO19, U1RTS, ADC2_CH8, CLK_OUT2, USB_D-
+21   18    I/O/T  RTC_GPIO18, GPIO18, U1RXD, ADC2_CH7, DAC_2, CLK_OUT3
+===  ====  =====  ========================================================
+
+Related Documents
+=================
+* `ESP32-S2-DevKitM-1(U) Schematics <https://dl.espressif.com/dl/schematics/ESP32-S2-DevKitM-1_V1_Schematics.pdf>`_ (PDF)
+* `ESP32-S2-DevKitM-1(U) PCB Layout <https://dl.espressif.com/dl/schematics/ESP32-S2-DevKitM-1_V1_PCB_Layout.pdf>`_ (PDF)
+* `ESP32-S2-DevKitM-1(U) Dimensions <https://dl.espressif.com/dl/schematics/ESP32-S2-DevKitM-1_V1_Dimensions.pdf>`_ (PDF)
+* `ESP32-S2 Family Datasheet <https://www.espressif.com/sites/default/files/documentation/esp32-s2_datasheet_en.pdf>`_ (PDF)
+* `ESP32-S2-MINI-1 & ESP32-S2-MINI-1U Datasheet <https://www.espressif.com/sites/default/files/documentation/esp32-s2-mini-1_esp32-s2-mini-1u_datasheet_en.pdf>`_ (PDF)
+* `Espressif Product Ordering Information <https://www.espressif.com/sites/default/files/documentation/espressif_products_ordering_information_en.pdf>`_ (PDF) 
+
+For other design documentation for the board, please contact us at sales@espressif.com.

docs/zh_CN/get-started/index.rst

@@ -89,6 +89,7 @@
         :maxdepth: 1
 
         ESP32-S2-Saola-1 <../hw-reference/esp32s2/user-guide-saola-1-v1.2>
+        ESP32-S2-DevKitM-1(U) <../hw-reference/esp32s2/user-guide-devkitm-1-v1>
         ESP32-S2-Kaluga-Kit <../hw-reference/esp32s2/user-guide-esp32-s2-kaluga-1-kit>
 
 .. _get-started-step-by-step:

docs/zh_CN/hw-reference/esp32s2/user-guide-devkitm-1-v1.rst

@@ -0,0 +1,226 @@
+=====================
+ESP32-S2-DevKitM-1(U)
+=====================
+
+:link_to_translation:`en: [English]`
+
+本指南介绍了乐鑫的小型开发板 ESP32-S2-DevKitM-1(U)。
+
+ESP32-S2-DevKitM-1(U) 是一款基于 `ESP32-S2FH4 <https://www.espressif.com/sites/default/files/documentation/esp32-s2_datasheet_cn.pdf>`__ 芯片（ESP32-S2 系列）的通用型开发板。该款开发板具有丰富的外设和优化的引脚布局，令产品开发更快捷。
+
+ESP32-S2-DevKitM-1 搭载的是 `ESP32-S2-MINI-1 <https://www.espressif.com/sites/default/files/documentation/esp32-s2-mini-1_esp32-s2-mini-1u_datasheet_cn.pdf>`__ 模组 （PCB 板载天线），ESP32-S2-DevKitM-1U 搭载的是 `ESP32-S2-MINI-1U <https://www.espressif.com/sites/default/files/documentation/esp32-s2-mini-1_esp32-s2-mini-1u_datasheet_cn.pdf>`__ 模组 （U.FL 座子连接外部 IPEX 天线）。
+
++----------------------+-----------------------+
+| |ESP32-S2-DevKitM-1| | |ESP32-S2-DevKitM-1U| | 
++----------------------+-----------------------+
+|  ESP32-S2-DevKitM-1  |  ESP32-S2-DevKitM-1U  | 
++----------------------+-----------------------+
+
+.. |ESP32-S2-DevKitM-1| image:: ../../../_static/esp32-s2-devkitm-1-v1-isometric.png
+
+.. |ESP32-S2-DevKitM-1U| image:: ../../../_static/esp32-s2-devkitm-1u-v1-isometric.png
+
+本指南包括如下内容：
+
+- `入门指南`_: 简要介绍了 ESP32-S2-DevKitM-1(U) 和硬件、软件设置指南。
+- `硬件参考`_: 详细介绍了 ESP32-S2-DevKitM-1(U) 的硬件。
+- `相关文档`_: 列出了相关文档的链接。
+
+入门指南
+========
+
+本节介绍了如何快速上手 ESP32-S2-DevKitM-1(U)。开头部分介绍了 ESP32-S2-DevKitM-1(U)，`开始开发应用`_ 小节介绍了怎样在 ESP32-S2-DevKitM-1(U) 上烧录固件及相关准备工作。
+
+概述
+----
+
+ESP32-S2-DevKitM-1(U) 是乐鑫一款搭载 ESP32-S2-MINI-1 或 ESP32-S2-MINI-1U 模组的入门级开发板。板上模组大部分管脚均已引出至两侧排针，开发人员可根据实际需求，轻松通过跳线连接多种外围设备，同时也可将开发板插在面包板上使用。
+
+
+内含组件和包装
+--------------
+
+零售订单
+^^^^^^^^
+
+如购买样品，每个 ESP32-S2-DevKitM-1(U) 底板将以防静电袋或零售商选择的其他方式包装。
+
+零售订单请前往 https://www.espressif.com/zh-hans/company/contact/buy-a-sample。
+
+批量订单
+^^^^^^^^
+
+如批量购买，ESP32-S2-DevKitM-1(U) 烧录底板将以大纸板箱包装。
+
+批量订单请参考 `乐鑫产品订购信息 <https://www.espressif.com/sites/default/files/documentation/espressif_products_ordering_information_cn.pdf>`__ (PDF)。
+
+组件介绍
+--------
+
+.. _user-guide-devkitm-1-v1-board-front:
+
+.. figure:: ../../../_static/esp32-s2-devkitm-1-v1-annotated-photo.png
+    :align: center
+    :alt: ESP32-S2-DevKitM-1 - 正面
+    :figclass: align-center
+
+    ESP32-S2-DevKitM-1 - 正面
+
+.. figure:: ../../../_static/esp32-s2-devkitm-1u-v1-annotated-photo.png
+    :align: center
+    :alt: ESP32-S2-DevKitM-1U - 正面
+    :figclass: align-center
+
+    ESP32-S2-DevKitM-1U - 正面
+
+.. list-table::
+   :widths: 30 70
+   :header-rows: 1
+
+   * - 主要组件
+     - 介绍
+   * - ESP32-S2-MINI-1 或 ESP32-S2-MINI-1U
+     - ESP32-S2-MINI-1 和 ESP32-S2-MINI-1U 是集成 ESP32-S2FH4 的通用型 Wi-Fi MCU 模组，ESP32-S2-MINI-1 采用 PCB 板载天线，ESP32-S2-MINI-1U 采用 U.FL 座子连接外部 IPEX 天线。两款模组均配置了 4 MB SPI flash。
+   * - 3.3 V 电源指示灯
+     - 开发板连接 USB 电源后，该指示灯亮起。
+   * - USB 至 UART 桥接器
+     - 单芯片 USB 至 UART 桥接器，可提供高达 3 Mbps 的传输速率。
+   * - I/O 连接器 
+     - 所有可用 GPIO 管脚（除 flash 的 SPI 总线）均已引出至开发板的排针。用户可对 ESP32-S2FH4 芯片编程，使能 SPI、I2S、UART、I2C、触摸传感器、PWM 等多种功能。请查看 :ref:`user-guide-devkitm-1-v1-header-blocks` 获取更多信息。
+   * - Reset 键。
+     - 复位按键。
+   * - Micro-USB 接口
+     - USB 接口。可用作开发板的供电电源或 PC 和 ESP32-S2FH4 芯片的通信接口。     
+   * - Boot 键。
+     - 下载按键。按住 **Boot** 键的同时按一下 **Reset** 键进入“固件下载”模式，通过串口下载固件。
+   * - RGB LED
+     - 可寻址 RGB 发光二极管 (WS2812)，由 GPIO18 驱动。
+   * - 5 V 转 3.3 V LDO
+     - 电源转换器，输入 5 V，输出 3.3 V。
+   * - U.FL 座子
+     - 仅 **ESP32-S2-MINI-1U** 模组带有 U.FL 座子，用于连接外部 IPEX 天线。
+
+开始开发应用
+------------
+
+通电前，请确保 ESP32-S2-DevKitM-1(U) 完好无损。
+
+必备硬件
+^^^^^^^^
+
+- ESP32-S2-DevKitM-1(U)
+
+  + 如使用 ESP32-S2-DevKitM-1U，还需准备 IPEX 天线
+
+- USB 2.0 数据线（标准 A 型转 Micro-B型）
+- 电脑 （Windows、Linux 或 macOS）
+
+软件设置
+^^^^^^^^
+
+请前往 :doc:`../../get-started/index`，在 :ref:`get-started-step-by-step` 一节查看如何快速设置开发环境，将应用程序烧录至 ESP32-S2-DevKitM-1(U)。
+
+.. 注解::
+    
+    ESP32-S2 系列芯片仅支持 ESP-IDF master 分支或 v4.2 以上版本。
+
+硬件参考
+========
+
+功能框图
+--------
+
+ESP32-S2-DevKitM-1(U) 的主要组件和连接方式如下图所示。
+
+.. figure:: ../../../_static/esp32-s2-devkitm-1-v1-block-diagram.png
+    :align: center
+    :scale: 70%
+    :alt: ESP32-S2-DevKitM-1(U) （点击放大）
+    :figclass: align-center
+
+    ESP32-S2-DevKitM-1(U) （点击放大）
+
+电源选项
+^^^^^^^^
+
+您可从以下三种供电方式中任选其一给 ESP32-S2-DevKitM-1(U) 供电：
+
+- Micro USB 端口供电（默认）
+- 5V 和 GND 管脚供电
+- 3V3 和 GND 管脚供电
+
+建议选择第一种供电方式：Micro USB 端口供电。
+
+.. _user-guide-devkitm-1-v1-header-blocks:
+
+排针
+----
+
+下表列出了开发板两侧排针的 **名称** 和 **功能**，开发板排针图可前往 :ref:`user-guide-devkitm-1-v1-board-front` 查看。表格中的序号和名称与 `ESP32-S2-DevKitM-1(U) 原理图 <https://dl.espressif.com/dl/schematics/ESP32-S2-DevKitM-1_V1_Schematics.pdf>`_ (PDF)一致。
+
+J1
+^^^
+====  ====  =====  ============================================================
+序号  名称   类型    功能
+====  ====  =====  ============================================================
+1     3V3   P      3.3 V 电源
+2     0     I/O/T  RTC_GPIO0, GPIO0
+3     1     I/O/T  RTC_GPIO1, GPIO1, TOUCH1, ADC1_CH0
+4     2     I/O/T  RTC_GPIO2, GPIO2, TOUCH2, ADC1_CH1
+5     3     I/O/T  RTC_GPIO3, GPIO3, TOUCH3, ADC1_CH2
+6     4     I/O/T  RTC_GPIO4, GPIO4, TOUCH4, ADC1_CH3
+7     5     I/O/T  RTC_GPIO5, GPIO5, TOUCH5, ADC1_CH4
+8     6     I/O/T  RTC_GPIO6, GPIO6, TOUCH6, ADC1_CH5
+9     7     I/O/T  RTC_GPIO7, GPIO7, TOUCH7, ADC1_CH6
+10    8     I/O/T  RTC_GPIO8, GPIO8, TOUCH8, ADC1_CH7
+11    9     I/O/T  RTC_GPIO9, GPIO9, TOUCH9, ADC1_CH8, FSPIHD
+12    10    I/O/T  RTC_GPIO10, GPIO10, TOUCH10, ADC1_CH9, FSPICS0, FSPIIO4
+13    11    I/O/T  RTC_GPIO11, GPIO11, TOUCH11, ADC2_CH0, FSPID, FSPIIO5
+14    12    I/O/T  RTC_GPIO12, GPIO12, TOUCH12, ADC2_CH1, FSPICLK, FSPIIO6
+15    13    I/O/T  RTC_GPIO13, GPIO13, TOUCH13, ADC2_CH2, FSPIQ, FSPIIO7
+16    14    I/O/T  RTC_GPIO14, GPIO14, TOUCH14, ADC2_CH3, FSPIWP, FSPIDQS
+17    15    I/O/T  RTC_GPIO15, GPIO15, U0RTS, ADC2_CH4, XTAL_32K_P
+18    16    I/O/T  RTC_GPIO16, GPIO16, U0CTS, ADC2_CH5, XTAL_32K_N
+19    17    I/O/T  RTC_GPIO17, GPIO17, U1TXD, ADC2_CH6, DAC_1
+20    5V    P      5 V 电源
+21    G     G      接地
+====  ====  =====  ============================================================
+
+J3
+^^^
+====  ====  =====  ========================================================
+序号  名称   类型    功能
+====  ====  =====  ========================================================
+1     G     G      接地
+2     RST   I      CHIP_PU
+3     46    I      GPIO46
+4     45    I/O/T  GPIO45
+5     RX    I/O/T  U0RXD, GPIO44, CLK_OUT2
+6     TX    I/O/T  U0TXD, GPIO43, CLK_OUT1
+7     42    I/O/T  MTMS, GPIO42
+8     41    I/O/T  MTDI, GPIO41, CLK_OUT1
+9     40    I/O/T  MTDO, GPIO40, CLK_OUT2
+10    39    I/O/T  MTCK, GPIO39, CLK_OUT3
+11    38    I/O/T  GPIO38, FSPIWP
+12    37    I/O/T  SPIDQS, GPIO37, FSPIQ
+13    36    I/O/T  SPIIO7, GPIO36, FSPICLK
+14    35    I/O/T  SPIIO6, GPIO35, FSPID
+15    34    I/O/T  SPIIO5, GPIO34, FSPICS0
+16    33    I/O/T  SPIIO4, GPIO33, FSPIHD
+17    26    I/O/T  SPICS1, GPIO26
+18    21    I/O/T  RTC_GPIO21, GPIO21
+19    20    I/O/T  RTC_GPIO20, GPIO20, U1CTS, ADC2_CH9, CLK_OUT1, USB_D+
+20    19    I/O/T  RTC_GPIO19, GPIO19, U1RTS, ADC2_CH8, CLK_OUT2, USB_D-
+21    18    I/O/T  RTC_GPIO18, GPIO18, U1RXD, ADC2_CH7, DAC_2, CLK_OUT3
+====  ====  =====  ========================================================
+
+相关文档
+========
+* `ESP32-S2-DevKitM-1(U) 原理图 <https://dl.espressif.com/dl/schematics/ESP32-S2-DevKitM-1_V1_Schematics.pdf>`_ (PDF)
+* `ESP32-S2-DevKitM-1(U) PCB 布局 <https://dl.espressif.com/dl/schematics/ESP32-S2-DevKitM-1_V1_PCB_Layout.pdf>`_ (PDF)
+* `ESP32-S2-DevKitM-1(U) 尺寸图 <https://dl.espressif.com/dl/schematics/ESP32-S2-DevKitM-1_V1_Dimensions.pdf>`_ (PDF)
+* `ESP32-S2 系列技术规格书 <https://www.espressif.com/sites/default/files/documentation/esp32-s2_datasheet_cn.pdf>`_ (PDF)
+* `ESP32-S2-MINI-1 & ESP32-S2-MINI-1U 技术规格书 <https://www.espressif.com/sites/default/files/documentation/esp32-s2-mini-1_esp32-s2-mini-1u_datasheet_cn.pdf>`_ (PDF)
+* `乐鑫产品订购信息 <https://www.espressif.com/sites/default/files/documentation/espressif_products_ordering_information_cn.pdf>`_ (PDF) 
+
+有关本开发板的更多设计文档，请联系我们的商务部门 sales@espressif.com。