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esp-idf/docs/zh_CN/hw-reference/esp32/get-started-devkitc.rst

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ESP32-DevKitC V4 入门指南
=============================================
:link_to_translation:`en: [English]`
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本指南介绍了如何开始使用 ESP32-DevKitC V4 开发板。
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准备工作
-----------
* :ref:`ESP32-DevKitC V4 开发板 <get-started-esp32-devkitc-board-front>`
* USB A / micro USB B 数据线
* PC（Windows、Linux 或 Mac OS）
您可以跳过介绍部分，直接前往 `应用程序开发`_ 章节。
.. _DevKitC-Overview:
概述
----
ESP32-DevKitC V4 是 `乐鑫 <https://espressif.com>`_ 一款基于 ESP32 的小型开发板，板上模组的绝大部分管脚均已引出，开发人员可根据实际需求，轻松通过跳线连接多种外围器件，或将开发板插在面包板上使用。
为了更好地满足不同用户需求，ESP32-DevKitC V4 还支持以下不同配置：
- 可选多款 ESP32 模组
docs: udpate devkitc and wrover-kit boards
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- `ESP32-WROOM-32E <https://www.espressif.com/sites/default/files/documentation/esp32-wroom-32e_esp32-wroom-32ue_datasheet_cn.pdf>`_
- `ESP32-WROOM-32UE <https://www.espressif.com/sites/default/files/documentation/esp32-wroom-32e_esp32-wroom-32ue_datasheet_cn.pdf>`_
- `ESP32-WROOM-32D <https://www.espressif.com/sites/default/files/documentation/esp32-wroom-32d_esp32-wroom-32u_datasheet_cn.pdf>`_
- `ESP32-WROOM-32U <https://www.espressif.com/sites/default/files/documentation/esp32-wroom-32d_esp32-wroom-32u_datasheet_cn.pdf>`_
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- `ESP32-SOLO-1 <https://www.espressif.com/sites/default/files/documentation/esp32-solo-1_datasheet_en.pdf>`_
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- `ESP32-WROVER-E <https://www.espressif.com/sites/default/files/documentation/esp32-wrover-e_esp32-wrover-ie_datasheet_cn.pdf>`_
- `ESP32-WROVER-IE <https://www.espressif.com/sites/default/files/documentation/esp32-wrover-e_esp32-wrover-ie_datasheet_cn.pdf>`_
- `ESP32-WROOM-DA <https://www.espressif.com/sites/default/files/documentation/esp32-wroom-da_datasheet_cn.pdf>`_
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- 可选排针或排母
Add a note to ESP32-DevKtiM-1 User Guide, to enable single core mode Add new module variants for ESP32-DevKitM-1 and ESP32-PICO-DevKitM-02 boards Replace Ordering Information globally
2021-07-22 07:41:30 +00:00
详情请见 `乐鑫产品选型工具 <https://products.espressif.com/#/product-selector?names=>`__。
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功能说明
---------
ESP32-DevKitC V4 开发板的主要组件、接口及控制方式见下。
.. _get-started-esp32-devkitc-board-front:
.. figure:: ../../../_static/esp32-devkitc-functional-overview.jpg
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:align: center
:alt: ESP32-DevKitC V4（板载 ESP32-WROOM-32）
:figclass: align-center
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ESP32-DevKitC V4（板载 ESP32-WROOM-32）
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.. list-table::
:widths: 25 75
:header-rows: 1
* - 主要组件
- 基本介绍
* - ESP32-WROOM-32
- 基于 ESP32 的模组。更多详情，请见 `《ESP32-WROOM-32 技术规格书》`_。
* - EN
- 复位按键。
* - Boot
- 下载按键。按下 **Boot** 键并保持，同时按一下 **EN** 键（此时不要松开 **Boot** 键）进入“固件下载”模式，通过串口下载固件。
docs: udpate devkitc and wrover-kit boards
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* - USB-to-UART 桥接器
- 单芯片 USB-UART 桥接器，可提供高达 3 Mbps 的传输速率。
* - Micro USB 接口。
- USB 接口，可用作电路板的供电电源，或连接 PC 和 ESP32-WROOM-32 模组的通信接口。
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* - 5V Power On LED
- 开发板通电后（USB 或外部 5 V），该指示灯将亮起。更多信息，请见 `相关文档`_ 中的原理图。
* - I/O
- 板上模组的绝大部分管脚均已引出至开发板的排针。用户可以对 ESP32 进行编程，实现 PWM、ADC、DAC、I2C、I2S、SPI 等多种功能。
.. note::
管脚 D0、D1、D2、D3、CMD 和 CLK 用于 ESP32 芯片与 SPI flash 间的内部通信，集中分布在开发板两侧靠近 USB 端口的位置。通常而言，这些管脚最好不连，否则可能影响 SPI flash / SPI RAM 的工作。
.. note::
管脚 GPIO16 和 GPIO17 仅适用于板载 ESP32-WROOM 系列和 ESP32-SOLO-1 的开发板，保留内部使用。
电源选项
--------
开发板可从以下三种供电方式中任选其一：
* Micro USB 供电（默认）
* 5V / GND 管脚供电
* 3V3 / GND 管脚供电
.. warning::
上述供电模式 **不可同时连接**，否则可能会损坏开发板和/或电源。
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排针
------------
下表列出了开发板两侧排针（J1 和 J3）的名称和功能，排针名称如图 :ref:`get-started-esp32-devkitc-board-front` 中所示，排针编号与 `ESP32-DevKitC V4 原理图`_ (PDF) 一致。
J1
^^^
==== ==== ===== ===================================
编号 名称 类型 功能
==== ==== ===== ===================================
1 3V3 P 3.3 V 电源
2 EN I CHIP_PU, Reset
3 IO36 I GPIO36, ADC1_CH0, S_VP
4 IO39 I GPIO39, ADC1_CH3, S_VN
5 IO34 I GPIO34, ADC1_CH6, VDET_1
6 IO35 I GPIO35, ADC1_CH7, VDET_2
7 IO32 I/O GPIO32, ADC1_CH4, TOUCH_CH9, XTAL_32K_P
8 IO33 I/O GPIO33, ADC1_CH5, TOUCH_CH8, XTAL_32K_N
9 IO25 I/O GPIO25, ADC1_CH8, DAC_1
10 IO26 I/O GPIO26, ADC2_CH9, DAC_2
11 IO27 I/O GPIO27, ADC2_CH7, TOUCH_CH7
12 IO14 I/O GPIO14, ADC2_CH6, TOUCH_CH6, MTMS
13 IO12 I/O GPIO12, ADC2_CH5, TOUCH_CH5, MTDI
14 GND G 接地
15 IO13 I/O GPIO13, ADC2_CH4, TOUCH_CH4, MTCK
16 IO9 I/O GPIO9, D2
17 IO10 I/O GPIO10, D3
18 IO11 I/O GPIO11, CMD
19 5V0 P 5 V 电源
==== ==== ===== ===================================
J3
^^^
==== ==== ===== ===================================
编号 名称 类型 功能
==== ==== ===== ===================================
1 GND G 接地
2 IO23 I/O GPIO23
3 IO22 I/O GPIO22
4 IO1 I/O GPIO1, U0TXD
5 IO3 I/O GPIO3, U0RXD
6 IO21 I/O GPIO21
7 GND G 接地
8 IO19 I/O GPIO19
9 IO18 I/O GPIO18
10 IO5 I/O GPIO5
11 IO17 I/O GPIO17
12 IO16 I/O GPIO16
13 IO4 I/O GPIO4, ADC2_CH0, TOUCH_CH0
14 IO0 I/O GPIO0, ADC2_CH1, TOUCH_CH1, Boot
16 IO2 I/O GPIO2, ADC2_CH2, TOUCH_CH2
17 IO15 I/O GPIO15, ADC2_CH3, TOUCH_CH3, MTDO
17 IO8 I/O GPIO8, D1
18 IO7 I/O GPIO7, D0
19 IO6 I/O GPIO6, SCK
==== ==== ===== ===================================
P：电源；
I：输入；
O：输出。
管脚布局
^^^^^^^^^^^
.. figure:: ../../../_static/esp32-devkitC-v4-pinout.jpg
:align: center
:scale: 45%
:alt: ESP32-DevKitC 管脚布局（点击放大）
:figclass: align-center
ESP32-DevKitC 管脚布局（点击放大）
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有关 C15 的提示
--------------------
较早版本 ESP32-DevKitC 开发板上的 C15 可能存在以下问题：
* 开发板上电后可能进入下载模式；
* 如果用户通过 GPIO0 输出时钟，C15 可能会影响信号。
用户如果认为 C15 可能影响开发板的使用，则可以将 C15 完全移除。C15 在开发板上的具体位置见下图黄色部分。
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.. figure:: ../../../_static/esp32-devkitc-c15-location.png
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:align: center
:alt: C15（黄色）在 ESP32-DevKitC V4 开发板上的位置
:figclass: align-center
:width: 30%
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C15（黄色）在 ESP32-DevKitC V4 开发板上的位置
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应用程序开发
-----------------
ESP32-DevKitC V4 上电前，请首先确认开发板完好无损。
现在，请前往 :doc:`../../get-started/index` 中的 :ref:`get-started-step-by-step` 章节，查看如何设置开发环境，并尝试将示例项目烧录至您的开发板。
开发板尺寸
-------------
.. figure:: ../../../_static/esp32-devkitc-dimensions-back.jpg
docs: udpate devkitc and wrover-kit boards
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:align: center
:alt: ESP32-DevKitC 开发板尺寸（板载 ESP32-WROOM-32 模组）-- 仰视图
:figclass: align-center
:width: 30%
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docs: udpate devkitc and wrover-kit boards
2021-08-25 08:38:45 +00:00
ESP32-DevKitC 开发板尺寸（板载 ESP32-WROOM-32 模组）-- 仰视图
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相关文档
-----------
* `ESP32-DevKitC V4 原理图 <https://dl.espressif.com/dl/schematics/esp32_devkitc_v4-sch.pdf>`_ (PDF)
* `《ESP32 技术规格书》 <https://www.espressif.com/sites/default/files/documentation/esp32_datasheet_cn.pdf>`_ (PDF)
* `《ESP32-WROOM-32 技术规格书》 <https://espressif.com/sites/default/files/documentation/esp32-wroom-32_datasheet_cn.pdf>`_ (PDF)
* `《ESP32-WROOM-32D & ESP32-WROOM-32U 技术规格书》 <https://www.espressif.com/sites/default/files/documentation/esp32-wroom-32d_esp32-wroom-32u_datasheet_cn.pdf>`_ (PDF)
* `《ESP32-WROVER 技术规格书》 <https://espressif.com/sites/default/files/documentation/esp32_wrover_datasheet_cn.pdf>`_ (PDF)
* `《ESP32-WROVER-B 技术规格书》 <https://www.espressif.com/sites/default/files/documentation/esp32-wrover-b_datasheet_cn.pdf>`_ (PDF)
docs: udpate devkitc and wrover-kit boards
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* `《ESP32-WROOM-DA 技术规格书》 <https://www.espressif.com/sites/default/files/documentation/esp32-wroom-da_datasheet_cn.pdf>`_ (PDF)
Add a note to ESP32-DevKtiM-1 User Guide, to enable single core mode Add new module variants for ESP32-DevKitM-1 and ESP32-PICO-DevKitM-02 boards Replace Ordering Information globally
2021-07-22 07:41:30 +00:00
* `乐鑫产品选型工具 <https://products.espressif.com/#/product-selector?names=>`__
Whitespace: Automated whitespace fixes (large commit) Apply the pre-commit hook whitespace fixes to all files in the repo. (Line endings, blank lines at end of file, trailing whitespace)
2020-11-10 07:40:01 +00:00
.. toctree::
:hidden:
get-started-devkitc-v2