Update missing description of board A and B connectors. Add a note about incorrect GPIO pin labels on the silkscreen besides the function switch.
This commit is contained in:
Krzysztof Budzynski
parent
363b573e60
commit
0abb3b99c1
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docs/_static/esp32-ethernet-kit-a-v1.1-layout.png
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docs/en/hw-reference/get-started-ethernet-kit-v1.0.rst
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@ -0,0 +1,371 @@
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ESP32-Ethernet-Kit V1.0 Getting Started Guide
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=============================================
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:link_to_translation:`zh_CN:[中文]`
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This guide shows how to get started with the ESP32-Ethernet-Kit development board and also provides information about its functionality and configuration options.
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The :ref:`ESP32-Ethernet-Kit <get-started-esp32-ethernet-kit-b-v1.0>` is an Ethernet-to-Wi-Fi development board that enables Ethernet devices to be interconnected over Wi-Fi. At the same time, to provide more flexible power supply options, the ESP32-Ethernet-Kit also supports power over Ethernet (PoE).
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What You Need
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-------------
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* :ref:`ESP32-Ethernet-Kit V1.0 board <get-started-esp32-ethernet-kit-b-v1.0>`
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* USB 2.0 A to Micro B Cable
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* Computer running Windows, Linux, or macOS
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You can skip the introduction sections and go directly to Section `Start Application Development`_.
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Overview
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--------
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ESP32-Ethernet-Kit is an ESP32-based development board produced by `Espressif <https://espressif.com>`_.
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It consists of two development boards, the Ethernet board A and the PoE board B, The :ref:`Ethernet board (A) <get-started-esp32-ethernet-kit-a-v1.0-layout>` contains Bluetooth / Wi-Fi dual-mode ESP32-WROVER-B module and IP101GRI, a Single Port 10/100 Fast Ethernet Transceiver (PHY). The :ref:`PoE board (B) <get-started-esp32-ethernet-kit-b-v1.0-layout>` provides power over Ethernet functionality. The A board can work independently, without the board B installed.
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.. _get-started-esp32-ethernet-kit-b-v1.0:
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.. figure:: ../../_static/esp32-ethernet-kit-v1.0.png
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:align: center
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:alt: ESP32-Ethernet-Kit V1.0
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:figclass: align-center
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ESP32-Ethernet-Kit V1.0
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For the application loading and monitoring the Ethernet board (A) also features FTDI FT2232HL chip - an advanced multi-interface USB bridge. This chip enables to use JTAG for direct debugging of ESP32 through the USB interface without a separate JTAG debugger.
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Functionality Overview
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----------------------
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The block diagram below shows the main components of ESP32-Ethernet-Kit and their interconnections.
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.. figure:: ../../_static/esp32-ethernet-kit-block-diagram.png
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:align: center
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:scale: 50%
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:alt: ESP32-Ethernet-Kit block diagram (click to enlarge)
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:figclass: align-center
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ESP32-Ethernet-Kit block diagram (click to enlarge)
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Functional Description
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----------------------
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The following two figures and tables describe the key components, interfaces, and controls of the ESP32-Ethernet-Kit.
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.. _get-started-esp32-ethernet-kit-a-v1.0-layout:
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Ethernet Board (A)
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^^^^^^^^^^^^^^^^^^
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.. figure:: ../../_static/esp32-ethernet-kit-a-v1.0-layout.png
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:align: center
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:scale: 80%
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:alt: ESP32-Ethernet-Kit - Ethernet board (A) layout
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:figclass: align-center
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ESP32-Ethernet-Kit - Ethernet board (A) layout (click to enlarge)
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The table below provides description starting from the picture's top right corner and going clockwise.
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================== =================================================================================================================================
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Key Component Description
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================== =================================================================================================================================
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ESP32-WROVER-B This ESP32 module features 64-Mbit PSRAM for flexible extended storage and data processing capabilities.
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GPIO Header 2 Five unpopulated through-hole solder pads to provide access to selected GPIOs of ESP32. For details, see `GPIO Header 2`_.
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Flow Control A jumper header with access to the board signals. For details, see `Flow Control`_.
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Function Switch A DIP switch used to configure the functionality of selected GPIOs of ESP32. For details, see `Function Switch`_.
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Tx/Rx LEDs Two LEDs to show the status of UART transmission.
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GPIO Header 3 Provides access to some GPIOs of ESP32 that can be used depending on the position of the `Function Switch`_.
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FT2232 The FT2232 chip serves as a multi-protocol USB-to-serial bridge which can be programmed and controlled via USB to provide communication with ESP32. FT2232 also features USB-to-JTAG interface which is available on channel A of the chip, while USB-to-serial is on channel B. The FT2232 chip enhances user-friendliness in terms of application development and debugging. See `ESP32-Ethernet-Kit V1.0 Ethernet board (A) schematic`_.
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USB Port USB interface. Power supply for the board as well as the communication interface between a computer and the board.
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Power Switch Power On/Off Switch. Toggling toward the **Boot** button powers the board on, toggling away from **Boot** powers the board off.
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5V Input The 5V power supply interface can be more convenient when the board is operating autonomously (not connected to a computer).
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5V Power On LED This red LED turns on when power is supplied to the board, either from USB or 5V Input.
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DC/DC Converter Provided DC 5 V to 3.3 V conversion, output current up to 2A.
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Board B Connectors A pair male header pins for mounting the :ref:`PoE board (B) <get-started-esp32-ethernet-kit-b-v1.0-layout>`.
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IP101GRI (PHY) The physical layer (PHY) connection to the Ethernet cable is implemented using the `IP101GRI <http://www.bdtic.com/DataSheet/ICplus/IP101G_DS_R01_20121224.pdf>`_ chip. The connection between PHY and ESP32 is done through the reduced media-independent interface (RMII), a variant of the media-independent interface `(MII) <https://en.wikipedia.org/wiki/Media-independent_interface>`_ standard. The PHY supports the IEEE 802.3 / 802.3u standard of 10/100Mbps.
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RJ45 Port Ethernet network data transmission port.
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Magnetics Module The Magnetics are part of the Ethernet specification to protect against faults and transients, including rejection of common mode signals between the transceiver IC and the cable. The magnetics also provide galvanic isolation between the transceiver and the Ethernet device.
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Link/Activity LEDs Two LEDs (green and red) that respectively indicate the "Link" and "Activity" statuses of the PHY.
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BOOT Button Download button. Holding down **BOOT** and then pressing **CH_PU** initiates Firmware Download mode for downloading firmware through the serial port.
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CH_PU Button Reset button.
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GPIO Header 1 This header provides six unpopulated through-hole solder pads connected to spare GPIOs of ESP32. For details, see `GPIO Header 1`_.
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================== =================================================================================================================================
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.. _get-started-esp32-ethernet-kit-b-v1.0-layout:
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PoE Board (B)
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^^^^^^^^^^^^^
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This board coverts power delivered over the Ethernet cable (PoE) to provide a power supply for the Ethernet board (A). The main components of the PoE board (B) are shown on the block diagram under `Functionality Overview`_.
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The PoE board (B) has the following features:
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* Support for IEEE 802.3at
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* Power output: 5 V, 1.4 A
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To take advantage of the PoE functionality the **RJ45 Port** of the Ethernet board (A) should be connected with an Ethernet cable to a switch that supports PoE. When the Ethernet board (A) detects 5 V power output from the PoE board (B), the USB power will be automatically cut off.
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.. figure:: ../../_static/esp32-ethernet-kit-b-v1.0-layout.png
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:align: center
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:scale: 80%
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:alt: ESP32-Ethernet-Kit - PoE board (B)
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:figclass: align-center
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ESP32-Ethernet-Kit - PoE board (B) layout (click to enlarge)
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========================== =================================================================================================================================
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Key Component Description
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========================== =================================================================================================================================
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Board A Connector Four female header pins for mounting this board onto :ref:`Ethernet board (A) <get-started-esp32-ethernet-kit-a-v1.0-layout>`.
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External Power Terminals Optional power supply to the PoE board (B).
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========================== =================================================================================================================================
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.. _get-started-esp32-ethernet-kit-b-v1.0-setup-options:
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Setup Options
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-------------
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This section describes options to configure the ESP32-Ethernet-Kit hardware.
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Function Switch
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^^^^^^^^^^^^^^^
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The functions for specific GPIO pins can be selected with the Function Switch.
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======= ================ ================================================================
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DIP SW GPIO Pin Pin Functionality if DIP SW is ON
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======= ================ ================================================================
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1 GPIO14 Connected to FT2232 to provide JTAG functionality
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2 GPIO12 Connected to FT2232 to provide JTAG functionality
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3 GPIO13 Connected to FT2232 to provide JTAG functionality
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4 GPIO15 Connected to FT2232 to provide JTAG functionality
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5 GPIO4 Connected to FT2232 to provide JTAG functionality
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6 GPIO2 Connected to on-board 25 MHz oscillator
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7 GPIO5 Connected to RESET_N input of IP101GRI
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8 n/a
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======= ================ ================================================================
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You can make a certain GPIO pin available for other purposes by putting its DIP SW to the Off position.
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Flow Control
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^^^^^^^^^^^^
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This is a 2 x 2 jumper pin header intended for the UART flow control.
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==== ======= =================================================
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. Signal Comment
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==== ======= =================================================
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1 MTDO GPIO13, see also `Function Switch`_
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2 MTCK GPIO15, see also `Function Switch`_
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3 RTS RTS signal of FT2232
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4 CTS CTS signal of FT2232
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==== ======= =================================================
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GPIO Allocation
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---------------
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This section describes allocation of ESP32 GPIOs to specific interfaces or functions of the ESP32-Ethernet-Kit.
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IP101GRI (PHY) Interface
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^^^^^^^^^^^^^^^^^^^^^^^^
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The allocation of the ESP32 (MAC) pins to IP101GRI (PHY) is shown in the table below. Implementation of ESP32-Ethernet-Kit defaults to Reduced Media-Independent Interface (RMII).
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==== ================ ===============
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. ESP32 Pin (MAC) IP101GRI (PHY)
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==== ================ ===============
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*RMII Interface*
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---------------------------------------
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1 GPIO21 TX_EN
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2 GPIO19 TXD[0]
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3 GPIO22 TXD[1]
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4 GPIO25 RXD[0]
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5 GPIO26 RXD[1]
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6 GPIO27 CRS_DV
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7 GPIO0 REF_CLK
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---- ---------------- ---------------
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*Serial Management Interface*
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---------------------------------------
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8 GPIO23 MDC
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9 GPIO18 MDIO
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---- ---------------- ---------------
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*PHY Reset*
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---------------------------------------
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10 GPIO5 Reset_N
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==== ================ ===============
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.. note::
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Except for REF_CLK, the allocation of all pins under the *RMII Interface* is fixed and cannot be changed either through IOMUX or GPIO Matrix.
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GPIO Header 1
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^^^^^^^^^^^^^
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This header exposes some GPIOs that are not used elsewhere on the ESP32-Ethernet-Kit.
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==== ================
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. ESP32 Pin
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==== ================
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1 GPIO32
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2 GPIO33
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3 GPIO34
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4 GPIO35
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5 GPIO36
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6 GPIO39
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==== ================
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GPIO Header 2
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^^^^^^^^^^^^^
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This header contains the GPIOs with specific MII functionality (except GPIO2), as opposed to Reduced Media-Independent Interface (RMII) functionality implemented on ESP32-Ethernet-Kit board by default, see `IP101GRI (PHY) Interface`_. Depending on the situation, if MMI is used, specific Ethernet applications might require this functionality.
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==== ========== ================= ==================
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. ESP32 Pin MII Function Comments
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==== ========== ================= ==================
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1 GPIO17 EMAC_CLK_180 See note 1
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2 GPIO16 EMAC_CLK_OUT See note 1
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3 GPIO4 EMAC_TX_ER
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4 GPIO2 n/a See note 2
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5 GPIO5 EMAC_RX_CLK See note 2
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==== ========== ================= ==================
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.. note::
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1. The ESP32 pins GPIO16 and GPIO17 are not broken out to the ESP32-WROVER-B module and therefore not available for use. If you need to use these pins, please solder a module without SPIRAM memory inside, e.g. the ESP32-WROOM-32D or ESP32-SOLO-1.
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2. Functionality depends on the settings of the `Function Switch`_.
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GPIO Header 3
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^^^^^^^^^^^^^
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The functionality of GPIOs connected to this header depends on the settings of the `Function Switch`_.
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==== ===========
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. ESP32 Pin
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==== ===========
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1 GPIO15
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2 GPIO13
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3 GPIO12
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4 GPIO14
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5 GND
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6 3V3
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==== ===========
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GPIO Allocation Summary
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^^^^^^^^^^^^^^^^^^^^^^^
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.. csv-table::
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:header: ESP32-WROVER-B,IP101GRI,UART,JTAG,GPIO, Comments
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S_VP,,,,IO36,
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S_VN,,,,IO39,
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IO34,,,,IO34,
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IO35,,,,IO35,
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IO32,,,,IO32,
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IO33,,,,IO33,
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IO25,RXD[0],,,,
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IO26,RXD[1],,,,
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IO27,CRS_DV,,,,
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IO14,,,TMS,IO14,
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IO12,,,TDI,IO12,
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IO13,,RTS,TCK,IO13,
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IO15,,CTS,TDO,IO15,
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IO2,,,,IO2,See notes 1 and 3 below
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IO0,REF_CLK,,,,See notes 2 and 3 below
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IO4,,,nTRST,IO4,
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IO16,,,,IO16 (NC),See note 4 below
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IO17,,,,IO17 (NC),See note 4 below
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IO5,Reset_N,,,IO5,
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IO18,MDIO,,,,
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IO19,TXD[0],,,,
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IO21,TX_EN,,,,
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RXD0,,RXD,,,
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TXD0,,TXD,,,
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IO22,TXD[1],,,,
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IO23,MDC,,,,
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.. note::
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1. GPIO2 is used to enable external oscillator of the PHY.
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2. GPIO0 is a source of 50 MHz reference clock for the PHY. The clock signal is first inverted, to account for transmission line delay, and then supplied to the PHY.
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3. To prevent affecting the power-on state of GPIO0 by the clock output on the PHY side, the PHY external oscillator is enabled using GPIO2 after ESP32 is powered up.
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4. The ESP32 pins GPIO16 and GPIO17 are not broken out to the ESP32-WROVER-B module and therefore not available for use. If you need to use these pins, please solder a module without SPIRAM memory inside, e.g. the ESP32-WROOM-32D or ESP32-SOLO-1.
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Start Application Development
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-----------------------------
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Before powering up your ESP32-Ethernet-Kit, please make sure that the board is in good condition with no obvious signs of damage.
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Initial Setup
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^^^^^^^^^^^^^
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1. Set the **Function Switch** on the :ref:`Ethernet board (A) <get-started-esp32-ethernet-kit-a-v1.0-layout>` to its default position by turning all the switches to **ON**.
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2. To simplify flashing and testing the application, do not install any jumpers and do not connect any signals to the board headers.
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3. The :ref:`PoE board (B) <get-started-esp32-ethernet-kit-b-v1.0-layout>` can now be plugged in, but do not connect external power to it.
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4. Connect the :ref:`Ethernet board (A) <get-started-esp32-ethernet-kit-a-v1.0-layout>` to the PC with a USB cable.
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5. Turn the **Power Switch** from GND to 5V0 position, the **5V Power On LED** should light up.
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Now to Development
|
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^^^^^^^^^^^^^^^^^^
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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 example project onto your board.
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Move on to the next section only if you have successfully completed all the above steps.
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Configure and Load the Ethernet Example
|
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^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
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After setting up the development environment and testing the board, you can configure and flash the :example:`ethernet/ethernet` example. This example has been created for testing Ethernet functionality. It supports different PHY, including **IP101GRI** installed on :ref:`ESP32-Ethernet-Kit V1.0 board <get-started-esp32-ethernet-kit-b-v1.0>`.
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Related Documents
|
||||
-----------------
|
||||
|
||||
* `ESP32-Ethernet-Kit V1.0 Ethernet board (A) schematic`_ (PDF)
|
||||
* `ESP32-Ethernet-Kit V1.0 PoE board (B) schematic`_ (PDF)
|
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* `ESP32 Datasheet <https://www.espressif.com/sites/default/files/documentation/esp32_datasheet_en.pdf>`_ (PDF)
|
||||
* `ESP32-WROVER-B Datasheet <https://espressif.com/sites/default/files/documentation/esp32-wrover-b_datasheet_en.pdf>`_ (PDF)
|
||||
* :doc:`../api-guides/jtag-debugging/index`
|
||||
* :doc:`../hw-reference/index`
|
||||
|
||||
.. _ESP32-Ethernet-Kit V1.0 Ethernet board (A) schematic: https://dl.espressif.com/dl/schematics/SCH_ESP32-ETHERNET-KIT_A_V1.0_20190517.pdf
|
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.. _ESP32-Ethernet-Kit V1.0 PoE board (B) schematic: https://dl.espressif.com/dl/schematics/SCH_ESP32-ETHERNET-KIT_B_V1.0_20190517.pdf
|
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@ -1,16 +1,21 @@
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|||
ESP32-Ethernet-Kit V1.0 Getting Started Guide
|
||||
ESP32-Ethernet-Kit V1.1 Getting Started Guide
|
||||
=============================================
|
||||
|
||||
:link_to_translation:`zh_CN:[中文]`
|
||||
.. todo::
|
||||
|
||||
* Restore "link_to_translation" once translation is done
|
||||
* :link_to_translation:`zh_CN:[中文]`
|
||||
* Replace V1.0 board pictures with V1.1
|
||||
|
||||
|
||||
This guide shows how to get started with the ESP32-Ethernet-Kit development board and also provides information about its functionality and configuration options.
|
||||
|
||||
The :ref:`ESP32-Ethernet-Kit <get-started-esp32-ethernet-kit-b-v1.0>` is an Ethernet-to-Wi-Fi development board that enables Ethernet devices to be interconnected over Wi-Fi. At the same time, to provide more flexible power supply options, the ESP32-Ethernet-Kit also supports power over Ethernet (PoE).
|
||||
The :ref:`ESP32-Ethernet-Kit <get-started-esp32-ethernet-kit-v1.1>` is an Ethernet-to-Wi-Fi development board that enables Ethernet devices to be interconnected over Wi-Fi. At the same time, to provide more flexible power supply options, the ESP32-Ethernet-Kit also supports power over Ethernet (PoE).
|
||||
|
||||
What You Need
|
||||
-------------
|
||||
|
||||
* :ref:`ESP32-Ethernet-Kit V1.0 board <get-started-esp32-ethernet-kit-b-v1.0>`
|
||||
* :ref:`ESP32-Ethernet-Kit V1.1 board <get-started-esp32-ethernet-kit-v1.1>`
|
||||
* USB 2.0 A to Micro B Cable
|
||||
* Computer running Windows, Linux, or macOS
|
||||
|
||||
|
|
@ -21,18 +26,18 @@ Overview
|
|||
|
||||
ESP32-Ethernet-Kit is an ESP32-based development board produced by `Espressif <https://espressif.com>`_.
|
||||
|
||||
It consists of two development boards, the Ethernet board A and the PoE board B, The :ref:`Ethernet board (A) <get-started-esp32-ethernet-kit-a-v1.0-layout>` contains Bluetooth / Wi-Fi dual-mode ESP32-WROVER-B module and IP101GRI, a Single Port 10/100 Fast Ethernet Transceiver (PHY). The :ref:`PoE board (B) <get-started-esp32-ethernet-kit-b-v1.0-layout>` provides power over Ethernet functionality. The A board can work independently, without the board B installed.
|
||||
It consists of two development boards, the Ethernet board A and the PoE board B. The :ref:`Ethernet board (A) <get-started-esp32-ethernet-kit-a-v1.1-layout>` contains Bluetooth / Wi-Fi dual-mode ESP32-WROVER-B module and IP101GRI, a Single Port 10/100 Fast Ethernet Transceiver (PHY). The `PoE board (B)`_ provides power over Ethernet functionality. The A board can work independently, without the board B installed.
|
||||
|
||||
.. _get-started-esp32-ethernet-kit-b-v1.0:
|
||||
.. _get-started-esp32-ethernet-kit-v1.1:
|
||||
|
||||
.. figure:: ../../_static/esp32-ethernet-kit-v1.0.png
|
||||
.. figure:: ../../_static/esp32-ethernet-kit-v1.1.png
|
||||
:align: center
|
||||
:alt: ESP32-Ethernet-Kit V1.0
|
||||
:alt: ESP32-Ethernet-Kit V1.1
|
||||
:figclass: align-center
|
||||
|
||||
ESP32-Ethernet-Kit V1.0
|
||||
ESP32-Ethernet-Kit V1.1
|
||||
|
||||
For the application loading and monitoring the Ethernet board (A) also features FTDI FT2232HL chip - an advanced multi-interface USB bridge. This chip enables to use JTAG for direct debugging of ESP32 through the USB interface without a separate JTAG debugger.
|
||||
For the application loading and monitoring, the Ethernet board (A) also features FTDI FT2232HL chip - an advanced multi-interface USB bridge. This chip enables to use JTAG for direct debugging of ESP32 through the USB interface without a separate JTAG debugger.
|
||||
|
||||
|
||||
Functionality Overview
|
||||
|
|
@ -40,9 +45,9 @@ Functionality Overview
|
|||
|
||||
The block diagram below shows the main components of ESP32-Ethernet-Kit and their interconnections.
|
||||
|
||||
.. figure:: ../../_static/esp32-ethernet-kit-block-diagram.png
|
||||
.. figure:: ../../_static/esp32-ethernet-kit-v1.1-block-diagram.png
|
||||
:align: center
|
||||
:scale: 50%
|
||||
:scale: 60%
|
||||
:alt: ESP32-Ethernet-Kit block diagram (click to enlarge)
|
||||
:figclass: align-center
|
||||
|
||||
|
|
@ -52,15 +57,15 @@ The block diagram below shows the main components of ESP32-Ethernet-Kit and thei
|
|||
Functional Description
|
||||
----------------------
|
||||
|
||||
The following two figures and tables describe the key components, interfaces, and controls of the ESP32-Ethernet-Kit.
|
||||
The following figures and tables describe the key components, interfaces, and controls of the ESP32-Ethernet-Kit.
|
||||
|
||||
|
||||
.. _get-started-esp32-ethernet-kit-a-v1.0-layout:
|
||||
.. _get-started-esp32-ethernet-kit-a-v1.1-layout:
|
||||
|
||||
Ethernet Board (A)
|
||||
^^^^^^^^^^^^^^^^^^
|
||||
|
||||
.. figure:: ../../_static/esp32-ethernet-kit-a-v1.0-layout.png
|
||||
.. figure:: ../../_static/esp32-ethernet-kit-a-v1.1-layout.png
|
||||
:align: center
|
||||
:scale: 80%
|
||||
:alt: ESP32-Ethernet-Kit - Ethernet board (A) layout
|
||||
|
|
@ -70,26 +75,22 @@ Ethernet Board (A)
|
|||
|
||||
The table below provides description starting from the picture's top right corner and going clockwise.
|
||||
|
||||
================== =================================================================================================================================
|
||||
================== ===========================================================================
|
||||
Key Component Description
|
||||
================== =================================================================================================================================
|
||||
================== ===========================================================================
|
||||
ESP32-WROVER-B This ESP32 module features 64-Mbit PSRAM for flexible extended storage and data processing capabilities.
|
||||
|
||||
GPIO Header 2 Five unpopulated through-hole solder pads to provide access to selected GPIOs of ESP32. For details, see `GPIO Header 2`_.
|
||||
|
||||
Flow Control A jumper header with access to the board signals. For details, see `Flow Control`_.
|
||||
|
||||
Function Switch A DIP switch used to configure the functionality of selected GPIOs of ESP32. For details, see `Function Switch`_.
|
||||
Function Switch A 4-bit DIP switch used to configure the functionality of selected GPIOs of ESP32. Please note that placement of GPIO pin number marking on the board's silkscreen besides the DIP switch is incorrect. For details and correct pin allocation see `Function Switch`_.
|
||||
|
||||
Tx/Rx LEDs Two LEDs to show the status of UART transmission.
|
||||
|
||||
GPIO Header 3 Provides access to some GPIOs of ESP32 that can be used depending on the position of the `Function Switch`_.
|
||||
|
||||
FT2232 The FT2232 chip serves as a multi-protocol USB-to-serial bridge which can be programmed and controlled via USB to provide communication with ESP32. FT2232 also features USB-to-JTAG interface which is available on channel A of the chip, while USB-to-serial is on channel B. The FT2232 chip enhances user-friendliness in terms of application development and debugging. See `ESP32-Ethernet-Kit V1.0 Ethernet board (A) schematic`_.
|
||||
FT2232H The FT2232H chip serves as a multi-protocol USB-to-serial bridge which can be programmed and controlled via USB to provide communication with ESP32. FT2232H also features USB-to-JTAG interface which is available on channel A of the chip, while USB-to-serial is on channel B. The FT2232H chip enhances user-friendliness in terms of application development and debugging. See `ESP32-Ethernet-Kit V1.1 Ethernet board (A) schematic`_.
|
||||
|
||||
USB Port USB interface. Power supply for the board as well as the communication interface between a computer and the board.
|
||||
|
||||
Power Switch Power On/Off Switch. Toggling toward the **Boot** button powers the board on, toggling away from **Boot** powers the board off.
|
||||
Power Switch Power On/Off Switch. Toggling the switch to **5V0** position powers the board on, toggling to **GND** position powers the board off.
|
||||
|
||||
5V Input The 5V power supply interface can be more convenient when the board is operating autonomously (not connected to a computer).
|
||||
|
||||
|
|
@ -97,7 +98,7 @@ Power Switch Power On/Off Switch. Toggling toward the **Boot** button pow
|
|||
|
||||
DC/DC Converter Provided DC 5 V to 3.3 V conversion, output current up to 2A.
|
||||
|
||||
Board B Connectors A pair male header pins for mounting the :ref:`PoE board (B) <get-started-esp32-ethernet-kit-b-v1.0-layout>`.
|
||||
Board B Connectors A pair male and female header pins for mounting the `PoE board (B)`_.
|
||||
|
||||
IP101GRI (PHY) The physical layer (PHY) connection to the Ethernet cable is implemented using the `IP101GRI <http://www.bdtic.com/DataSheet/ICplus/IP101G_DS_R01_20121224.pdf>`_ chip. The connection between PHY and ESP32 is done through the reduced media-independent interface (RMII), a variant of the media-independent interface `(MII) <https://en.wikipedia.org/wiki/Media-independent_interface>`_ standard. The PHY supports the IEEE 802.3 / 802.3u standard of 10/100Mbps.
|
||||
|
||||
|
|
@ -107,16 +108,13 @@ Magnetics Module The Magnetics are part of the Ethernet specification to prot
|
|||
|
||||
Link/Activity LEDs Two LEDs (green and red) that respectively indicate the "Link" and "Activity" statuses of the PHY.
|
||||
|
||||
BOOT Button Download button. Holding down **BOOT** and then pressing **CH_PU** initiates Firmware Download mode for downloading firmware through the serial port.
|
||||
BOOT Button Download button. Holding down **BOOT** and then pressing **EN** initiates Firmware Download mode for downloading firmware through the serial port.
|
||||
|
||||
CH_PU Button Reset button.
|
||||
EN Button Reset button.
|
||||
|
||||
GPIO Header 1 This header provides six unpopulated through-hole solder pads connected to spare GPIOs of ESP32. For details, see `GPIO Header 1`_.
|
||||
|
||||
================== =================================================================================================================================
|
||||
|
||||
|
||||
.. _get-started-esp32-ethernet-kit-b-v1.0-layout:
|
||||
================== ===========================================================================
|
||||
|
||||
PoE Board (B)
|
||||
^^^^^^^^^^^^^
|
||||
|
|
@ -138,17 +136,17 @@ To take advantage of the PoE functionality the **RJ45 Port** of the Ethernet boa
|
|||
|
||||
ESP32-Ethernet-Kit - PoE board (B) layout (click to enlarge)
|
||||
|
||||
========================== =================================================================================================================================
|
||||
Key Component Description
|
||||
========================== =================================================================================================================================
|
||||
Board A Connector Four female header pins for mounting this board onto :ref:`Ethernet board (A) <get-started-esp32-ethernet-kit-a-v1.0-layout>`.
|
||||
======================== =====================================================================
|
||||
Key Component Description
|
||||
======================== =====================================================================
|
||||
Board A Connector Four female (left) and four male (right) header pins for connecting the PoE board (B) to :ref:`Ethernet board (A) <get-started-esp32-ethernet-kit-a-v1.1-layout>`. The pins on the left accept power coming from a PoE switch. The pins on the right deliver 5 V power supply to the Ethernet board (A).
|
||||
|
||||
External Power Terminals Optional power supply to the PoE board (B).
|
||||
External Power Terminals Optional power supply (26.6 ~ 54 V) to the PoE board (B).
|
||||
|
||||
========================== =================================================================================================================================
|
||||
======================== =====================================================================
|
||||
|
||||
|
||||
.. _get-started-esp32-ethernet-kit-b-v1.0-setup-options:
|
||||
.. _get-started-esp32-ethernet-kit-v1.1-setup-options:
|
||||
|
||||
Setup Options
|
||||
-------------
|
||||
|
|
@ -159,37 +157,60 @@ This section describes options to configure the ESP32-Ethernet-Kit hardware.
|
|||
Function Switch
|
||||
^^^^^^^^^^^^^^^
|
||||
|
||||
The functions for specific GPIO pins can be selected with the Function Switch.
|
||||
When in On position, this DIP switch is routing listed GPIOs to FT2232H to provide JTAG functionality. When in Off position, the GPIOs may be used for other purposes.
|
||||
|
||||
======= ================ ================================================================
|
||||
DIP SW GPIO Pin Pin Functionality if DIP SW is ON
|
||||
======= ================ ================================================================
|
||||
1 GPIO14 Connected to FT2232 to provide JTAG functionality
|
||||
2 GPIO12 Connected to FT2232 to provide JTAG functionality
|
||||
3 GPIO13 Connected to FT2232 to provide JTAG functionality
|
||||
4 GPIO15 Connected to FT2232 to provide JTAG functionality
|
||||
5 GPIO4 Connected to FT2232 to provide JTAG functionality
|
||||
6 GPIO2 Connected to on-board 25 MHz oscillator
|
||||
7 GPIO5 Connected to RESET_N input of IP101GRI
|
||||
8 n/a
|
||||
======= ================ ================================================================
|
||||
======= ================
|
||||
DIP SW GPIO Pin
|
||||
======= ================
|
||||
1 GPIO13
|
||||
2 GPIO12
|
||||
3 GPIO15
|
||||
4 GPIO14
|
||||
======= ================
|
||||
|
||||
You can make a certain GPIO pin available for other purposes by putting its DIP SW to the Off position.
|
||||
.. note::
|
||||
|
||||
Placement of GPIO pin number marking on the board's silkscreen besides the DIP switch is incorrect. Please use instead the pin order as in the table above.
|
||||
|
||||
|
||||
Flow Control
|
||||
^^^^^^^^^^^^
|
||||
RMII Clock Selection
|
||||
^^^^^^^^^^^^^^^^^^^^
|
||||
|
||||
This is a 2 x 2 jumper pin header intended for the UART flow control.
|
||||
ESP32's RMII and the external PHY need a common 50 MHz reference clock. The clock for the ESP32 RMII can be provided either externally, or generated from internal ESP32 APLL.
|
||||
|
||||
==== ======= =================================================
|
||||
. Signal Comment
|
||||
==== ======= =================================================
|
||||
1 MTDO GPIO13, see also `Function Switch`_
|
||||
2 MTCK GPIO15, see also `Function Switch`_
|
||||
3 RTS RTS signal of FT2232
|
||||
4 CTS CTS signal of FT2232
|
||||
==== ======= =================================================
|
||||
.. note::
|
||||
|
||||
For additional information on implementation of the RMII clock selection please refer to `ESP32-Ethernet-Kit V1.1 Ethernet board (A) schematic`_, sheet 2, location D2.
|
||||
|
||||
RMII Clock Sourced Externally by PHY
|
||||
""""""""""""""""""""""""""""""""""""
|
||||
|
||||
By default the ESP32-Ethernet-Kit is configured to provide this clock from the IP101GRI PHY's 50M_CLKO output. The source of the clock signal itself is 25 MHz crystal oscillator connected to the PHY. For details please see the figure below.
|
||||
|
||||
.. figure:: ../../_static/esp32-ethernet-kit-rmii-clk-from-phy.png
|
||||
:align: center
|
||||
:scale: 80%
|
||||
:alt: RMII Clock from IP101GRI PHY
|
||||
:figclass: align-center
|
||||
|
||||
RMII Clock from IP101GRI PHY
|
||||
|
||||
Please note that the PHY is reset on power up by pulling the RESET_N signal down with a resistor. Then the PHY should be enabled by ESP32 by asserting GPIO5 high. Such sequence is required on power up to disable the REF_CLK_50M clock signal on GPIO0 strapping pin. If the clock is enabled it may cause the ESP32 to lock up in a boot mode.
|
||||
|
||||
RMII Clock Sourced Internally from ESP32's APLL
|
||||
"""""""""""""""""""""""""""""""""""""""""""""""
|
||||
|
||||
Another option is to source the RMII Clock from internal ESP32 APLL, see figure below. The clock signal coming from GPIO0 is first inverted, to account for transmission line delay, and then supplied to the PHY.
|
||||
|
||||
.. figure:: ../../_static/esp32-ethernet-kit-rmii-clk-to-phy.png
|
||||
:align: center
|
||||
:scale: 80%
|
||||
:alt: RMII Clock from ESP Internal APLL
|
||||
:figclass: align-center
|
||||
|
||||
RMII Clock from ESP Internal APLL
|
||||
|
||||
To implement this option users need to replace and add some components using already provided on the board solder pads and connections. For details please refer to `ESP32-Ethernet-Kit V1.1 Ethernet board (A) schematic`_, sheet 2, location D2. Please note that if the APLL is already used for other purposes (e.g. I2S peripheral), then you have no choice but use an external RMII clock.
|
||||
|
||||
|
||||
GPIO Allocation
|
||||
|
|
@ -201,7 +222,7 @@ This section describes allocation of ESP32 GPIOs to specific interfaces or funct
|
|||
IP101GRI (PHY) Interface
|
||||
^^^^^^^^^^^^^^^^^^^^^^^^
|
||||
|
||||
The allocation of the ESP32 (MAC) pins to IP101GRI (PHY) is shown in the table below.
|
||||
The allocation of the ESP32 (MAC) pins to IP101GRI (PHY) is shown in the table below. Implementation of ESP32-Ethernet-Kit defaults to Reduced Media-Independent Interface (RMII).
|
||||
|
||||
==== ================ ===============
|
||||
. ESP32 Pin (MAC) IP101GRI (PHY)
|
||||
|
|
@ -228,7 +249,7 @@ The allocation of the ESP32 (MAC) pins to IP101GRI (PHY) is shown in the table b
|
|||
|
||||
.. note::
|
||||
|
||||
Except for REF_CLK, the allocation of all pins under the *RMII Interface* is fixed and cannot be changed either through IOMUX or GPIO Matrix.
|
||||
Except for REF_CLK, the allocation of all pins under the ESP32's *RMII Interface* is fixed and cannot be changed either through IOMUX or GPIO Matrix.
|
||||
|
||||
|
||||
GPIO Header 1
|
||||
|
|
@ -251,46 +272,35 @@ This header exposes some GPIOs that are not used elsewhere on the ESP32-Ethernet
|
|||
GPIO Header 2
|
||||
^^^^^^^^^^^^^
|
||||
|
||||
This header contains the GPIOs with specific RMII functionality (except GPIO2). Depending on the situation, specific Ethernet applications might require this functionality.
|
||||
This header contains GPIOs that may be used for other purposes depending on scenarios described in column "Comments".
|
||||
|
||||
==== ========== ================= ==================
|
||||
. ESP32 Pin RMII Function Comments
|
||||
==== ========== ================= ==================
|
||||
1 GPIO17 EMAC_CLK_180 See note 1
|
||||
2 GPIO16 EMAC_CLK_OUT See note 1
|
||||
3 GPIO4 EMAC_TX_ER
|
||||
4 GPIO2 n/a See note 2
|
||||
5 GPIO5 EMAC_RX_CLK See note 2
|
||||
==== ========== ================= ==================
|
||||
==== ========== ====================
|
||||
. ESP32 Pin Comments
|
||||
==== ========== ====================
|
||||
1 GPIO17 See note 1
|
||||
2 GPIO16 See note 1
|
||||
3 GPIO4
|
||||
4 GPIO2
|
||||
5 GPIO13 See note 2
|
||||
6 GPIO12 See note 2
|
||||
7 GPIO15 See note 2
|
||||
8 GPIO14 See note 2
|
||||
9 GND Ground
|
||||
10 3V3 3.3 V power supply
|
||||
==== ========== ====================
|
||||
|
||||
.. note::
|
||||
|
||||
1. The ESP32 pins GPIO16 and GPIO17 are not broken out to the ESP32-WROVER-B module and therefore not available for use. If you need to use these pins, please solder a module without SPIRAM memory inside, e.g. the ESP32-WROOM-32D or ESP32-SOLO-1.
|
||||
1. The ESP32 pins GPIO16 and GPIO17 are not broken out to the ESP32-WROVER-B module and therefore not available for use. If you need to use these pins, please solder a module without PSRAM memory inside, e.g. the ESP32-WROOM-32D or ESP32-SOLO-1.
|
||||
|
||||
2. Functionality depends on the settings of the `Function Switch`_.
|
||||
|
||||
|
||||
GPIO Header 3
|
||||
^^^^^^^^^^^^^
|
||||
|
||||
The functionality of GPIOs connected to this header depends on the settings of the `Function Switch`_.
|
||||
|
||||
==== ===========
|
||||
. ESP32 Pin
|
||||
==== ===========
|
||||
1 GPIO15
|
||||
2 GPIO13
|
||||
3 GPIO12
|
||||
4 GPIO14
|
||||
5 GND
|
||||
6 3V3
|
||||
==== ===========
|
||||
|
||||
|
||||
GPIO Allocation Summary
|
||||
^^^^^^^^^^^^^^^^^^^^^^^
|
||||
|
||||
.. csv-table::
|
||||
:header: ESP32-WROVER-B,IP101GRI,UART,JTAG,GPIO, Comments
|
||||
:header: ESP32-WROVER-B,IP101GRI,UART,JTAG,GPIO,Comments
|
||||
|
||||
S_VP,,,,IO36,
|
||||
S_VN,,,,IO39,
|
||||
|
|
@ -305,12 +315,12 @@ GPIO Allocation Summary
|
|||
IO12,,,TDI,IO12,
|
||||
IO13,,RTS,TCK,IO13,
|
||||
IO15,,CTS,TDO,IO15,
|
||||
IO2,,,,IO2,See notes 1 and 3 below
|
||||
IO0,REF_CLK,,,,See notes 2 and 3 below
|
||||
IO4,,,nTRST,IO4,
|
||||
IO16,,,,IO16 (NC),See note 4 below
|
||||
IO17,,,,IO17 (NC),See note 4 below
|
||||
IO5,Reset_N,,,IO5,
|
||||
IO2,,,,IO2,
|
||||
IO0,REF_CLK,,,,See note 1
|
||||
IO4,,,,IO4,
|
||||
IO16,,,,IO16 (NC),See note 2
|
||||
IO17,,,,IO17 (NC),See note 2
|
||||
IO5,Reset_N,,,,See note 1
|
||||
IO18,MDIO,,,,
|
||||
IO19,TXD[0],,,,
|
||||
IO21,TX_EN,,,,
|
||||
|
|
@ -319,17 +329,13 @@ GPIO Allocation Summary
|
|||
IO22,TXD[1],,,,
|
||||
IO23,MDC,,,,
|
||||
|
||||
|
||||
.. note::
|
||||
|
||||
1. GPIO2 is used to enable external oscillator of the PHY.
|
||||
2. GPIO0 is a source of 50 MHz reference clock for the PHY. The clock signal is first inverted, to account for transmission line delay, and then supplied to the PHY.
|
||||
3. To prevent affecting the power-on state of GPIO0 by the clock output on the PHY side, the PHY external oscillator is enabled using GPIO2 after ESP32 is powered up.
|
||||
4. The ESP32 pins GPIO16 and GPIO17 are not broken out to the ESP32-WROVER-B module and therefore not available for use. If you need to use these pins, please solder a module without SPIRAM memory inside, e.g. the ESP32-WROOM-32D or ESP32-SOLO-1.
|
||||
1. To prevent the power-on state of the GPIO0 from being affected by the clock output on the PHY side, the RESET_N signal to PHY defaults to low, turning the clock output off. After power-on you can control RESET_N with GPIO5 to turn the clock output on. See also `RMII Clock Sourced Externally by PHY`_. For PHYs that cannot turn off the clock output through RESET_N, it is recommended to use a crystal oscillator module that can be disabled / enabled externally. Similarly like when using RESET_N, the oscillator module should be disabled by default and turned on by ESP32 after power-up. For a reference design please see `ESP32-Ethernet-Kit V1.0 Ethernet board (A) schematic`_.
|
||||
|
||||
2. The ESP32 pins GPIO16 and GPIO17 are not broken out to the ESP32-WROVER-B module and therefore not available for use. If you need to use these pins, please solder a module without PSRAM memory inside, e.g. the ESP32-WROOM-32D or ESP32-SOLO-1.
|
||||
|
||||
|
||||
.. _get-started-esp32-ethernet-kit-start-development:
|
||||
|
||||
Start Application Development
|
||||
-----------------------------
|
||||
|
||||
|
|
@ -338,10 +344,10 @@ Before powering up your ESP32-Ethernet-Kit, please make sure that the board is i
|
|||
Initial Setup
|
||||
^^^^^^^^^^^^^
|
||||
|
||||
1. Set the **Function Switch** on the :ref:`Ethernet board (A) <get-started-esp32-ethernet-kit-a-v1.0-layout>` to its default position by turning all the switches to **ON**.
|
||||
2. To simplify flashing and testing the application, do not install any jumpers and do not connect any signals to the board headers.
|
||||
3. The :ref:`PoE board (B) <get-started-esp32-ethernet-kit-b-v1.0-layout>` can now be plugged in, but do not connect external power to it.
|
||||
4. Connect the :ref:`Ethernet board (A) <get-started-esp32-ethernet-kit-a-v1.0-layout>` to the PC with a USB cable.
|
||||
1. Set the **Function Switch** on the :ref:`Ethernet board (A) <get-started-esp32-ethernet-kit-a-v1.1-layout>` to its default position by turning all the switches to **ON**.
|
||||
2. To simplify flashing and testing the application do not connect any signals to the board headers.
|
||||
3. The `PoE board (B)`_ can now be plugged in, but do not connect external power to it.
|
||||
4. Connect the :ref:`Ethernet board (A) <get-started-esp32-ethernet-kit-a-v1.1-layout>` to the PC with a USB cable.
|
||||
5. Turn the **Power Switch** from GND to 5V0 position, the **5V Power On LED** should light up.
|
||||
|
||||
|
||||
|
|
@ -356,18 +362,42 @@ Move on to the next section only if you have successfully completed all the abov
|
|||
Configure and Load the Ethernet Example
|
||||
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
||||
|
||||
After setting up the development environment and testing the board, you can configure and flash the :example:`ethernet/ethernet` example. This example has been created for testing Ethernet functionality. It supports different PHY, including **IP101GRI** installed on :ref:`ESP32-Ethernet-Kit V1.0 board <get-started-esp32-ethernet-kit-b-v1.0>`.
|
||||
After setting up the development environment and testing the board, you can configure and flash the :example:`ethernet/ethernet` example. This example has been created for testing Ethernet functionality. It supports different PHY, including **IP101GRI** installed on :ref:`get-started-esp32-ethernet-kit-v1.1`.
|
||||
|
||||
|
||||
Summary of Changes from ESP32-Ethernet-Kit V1.0
|
||||
-----------------------------------------------
|
||||
|
||||
* The original inverted clock provided to the PHY by ESP32 using GPIO0 has been replaced by a clock generated on PHY side. The PHY's clock is connected to the ESP32 with same GPIO0. The GPIO2 which was originally used to control the active crystal oscillator on the PHY side, can now be used for other purposes.
|
||||
* On power up, the ESP32 boot strapping pin GPIO0 may be affected by clock generated on the PHY side. To resolve this issue the PHY's Reset-N signal is pulled low using resistor R17 and effectively turning off the PHY's clock output. The Reset-N signal can be then pulled high by ESP32 using GPIO5.
|
||||
* Removed FT2232H chip's external SPI Flash U6.
|
||||
* Removed flow control jumper header J4.
|
||||
* Removed nTRST JTAG signal. The corresponding GPIO4 can now be used for other purposes.
|
||||
* Pull-up resistor R68 on the GPIO15 line is moved to the MTDO side of JTAG.
|
||||
* To make the A and B board connections more foolproof (reduce chances of plugging in the B board in reverse orientation), the original two 4-pin male rows on board A were changed to one 4-pin female row and one 4-pin male row. Corresponding male and female 4-pins rows were installed on board B.
|
||||
|
||||
|
||||
Other Versions of ESP32-Ethernet-Kit
|
||||
------------------------------------
|
||||
|
||||
* :doc:`get-started-ethernet-kit-v1.0`
|
||||
|
||||
|
||||
Related Documents
|
||||
-----------------
|
||||
|
||||
* `ESP32-Ethernet-Kit V1.0 Ethernet board (A) schematic`_ (PDF)
|
||||
* `ESP32-Ethernet-Kit V1.1 Ethernet board (A) schematic`_ (PDF)
|
||||
* `ESP32-Ethernet-Kit V1.0 PoE board (B) schematic`_ (PDF)
|
||||
* `ESP32 Datasheet <https://www.espressif.com/sites/default/files/documentation/esp32_datasheet_en.pdf>`_ (PDF)
|
||||
* `ESP32-WROVER-B Datasheet <https://espressif.com/sites/default/files/documentation/esp32-wrover-b_datasheet_en.pdf>`_ (PDF)
|
||||
* :doc:`../api-guides/jtag-debugging/index`
|
||||
* :doc:`../hw-reference/index`
|
||||
|
||||
.. _ESP32-Ethernet-Kit V1.0 Ethernet board (A) schematic: https://dl.espressif.com/dl/schematics/SCH_ESP32-ETHERNET-KIT_A_V1.0_20190517.pdf
|
||||
.. _ESP32-Ethernet-Kit V1.1 Ethernet board (A) schematic: https://dl.espressif.com/dl/schematics/SCH_ESP32-ETHERNET-KIT_A_V1.1_20190711.pdf
|
||||
.. _ESP32-Ethernet-Kit V1.0 PoE board (B) schematic: https://dl.espressif.com/dl/schematics/SCH_ESP32-ETHERNET-KIT_B_V1.0_20190517.pdf
|
||||
.. _ESP32-Ethernet-Kit V1.0 Ethernet board (A) schematic: https://dl.espressif.com/dl/schematics/SCH_ESP32-ETHERNET-KIT_A_V1.0_20190517.pdf
|
||||
|
||||
.. toctree::
|
||||
:hidden:
|
||||
|
||||
get-started-ethernet-kit-v1.0.rst
|
||||
|
|
|
|||
371
docs/zh_CN/hw-reference/get-started-ethernet-kit-v1.0.rst
Normal file
371
docs/zh_CN/hw-reference/get-started-ethernet-kit-v1.0.rst
Normal file
|
|
@ -0,0 +1,371 @@
|
|||
ESP32-Ethernet-Kit V1.0 入门指南
|
||||
=============================================
|
||||
|
||||
:link_to_translation:`en:[English]`
|
||||
|
||||
|
||||
本指南介绍了如何使用 ESP32-Ethernet-Kit 开发板以及配置相关功能。
|
||||
|
||||
:ref:`ESP32-Ethernet-Kit <get-started-esp32-ethernet-kit-b-v1.0>` 是一款以太网转 Wi-Fi 开发板，可为以太网设备赋予 Wi-Fi 连接功能。为了提供更灵活的电源选项，ESP32-Ethernet-Kit 也同时支持以太网供电 (PoE)。
|
||||
|
||||
准备工作
|
||||
-------------
|
||||
|
||||
* :ref:`ESP32-Ethernet-Kit V1.0 开发板 <get-started-esp32-ethernet-kit-b-v1.0>`
|
||||
* USB 数据线（A 转 Micro-B）
|
||||
* 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。
|
||||
|
||||
概述
|
||||
--------
|
||||
|
||||
ESP32-Ethernet-Kit 是一款来自 `乐鑫 <https://espressif.com>`_ 的开发板，由以太网子板（A 板）和 PoE 子板（B 板）两部分组成。其中 :ref:`以太网子板（A 板） <get-started-esp32-ethernet-kit-a-v1.0-layout>` 贴蓝牙 / Wi-Fi 双模 ESP32-WROVER-B 模组和单端口 10/100 快速以太网收发器 (PHY) IP101GRI。:ref:`PoE 子板（B 板） <get-started-esp32-ethernet-kit-b-v1.0-layout>` 提供以太网供电功能。ESP32-Ethernet-Kit 的 A 板可在不连接 B 板的情况下独立工作。
|
||||
|
||||
.. _get-started-esp32-ethernet-kit-b-v1.0:
|
||||
|
||||
.. figure:: ../../_static/esp32-ethernet-kit-v1.0.png
|
||||
:align: center
|
||||
:alt: ESP32-Ethernet-Kit V1.0
|
||||
:figclass: align-center
|
||||
|
||||
ESP32-Ethernet-Kit V1.0
|
||||
|
||||
为了实现程序下载和监控，A 板还集成了一款先进多协议 USB 桥接器（FTDI FT2232HL 芯片），进而允许开发人员直接通过 USB 接口，使用 JTAG 对 ESP32 进行调试，无需额外的 JTAG 调试器。
|
||||
|
||||
|
||||
功能概述
|
||||
-----------
|
||||
|
||||
ESP32-Ethernet-Kit 开发板的主要组件和连接方式见下。
|
||||
|
||||
.. figure:: ../../_static/esp32-ethernet-kit-block-diagram.png
|
||||
:align: center
|
||||
:scale: 50%
|
||||
:alt: ESP32-Ethernet-Kit 功能框图（点击放大）
|
||||
:figclass: align-center
|
||||
|
||||
ESP32-Ethernet-Kit 功能框图（点击放大）
|
||||
|
||||
|
||||
功能说明
|
||||
-----------
|
||||
|
||||
ESP32-Ethernet-Kit 开发板的主要组件、接口及控制方式见下。
|
||||
|
||||
|
||||
.. _get-started-esp32-ethernet-kit-a-v1.0-layout:
|
||||
|
||||
以太网子板（A 板）
|
||||
^^^^^^^^^^^^^^^^^^
|
||||
|
||||
.. figure:: ../../_static/esp32-ethernet-kit-a-v1.0-layout.png
|
||||
:align: center
|
||||
:scale: 80%
|
||||
:alt: ESP32-Ethernet-Kit - 以太网子板（A 板）布局
|
||||
:figclass: align-center
|
||||
|
||||
ESP32-Ethernet-Kit - 以太网子板（A 板）布局（点击放大）
|
||||
|
||||
下表将从图片右上角开始，以顺时针顺序介绍图中的主要组件。
|
||||
|
||||
======================= ==================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================
|
||||
主要组件 基本介绍
|
||||
======================= ==================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================
|
||||
ESP32-WROVER-B 模组 这款 ESP32 模组内置 64-Mbit PSRAM，可提供灵活的额外存储空间和数据处理能力。
|
||||
|
||||
GPIO Header 2 由 5 个未引出通孔组成，可连接至 ESP32 的部分 GPIO。具体介绍，请见 `GPIO Header 2`_。
|
||||
|
||||
流控 跳线帽，可接入开发板信号。具体介绍，请见 `流控`_。
|
||||
|
||||
功能选择开关 DIP 开关，可配置 ESP32 部分 GPIO 的功能。具体介绍，请见 `功能选择开关`_。
|
||||
|
||||
Tx/Rx LED 2 个 LED，可显示 UART 传输的状态。
|
||||
|
||||
GPIO Header 3 可连接至 ESP32 的部分 GPIO，根据 `功能选择开关`_ 的位置有不同功能。
|
||||
|
||||
FT2232 FT2232 多协议 USB 转串口桥接器。开发人员可通过 USB 接口对 FT2232 芯片进行控制和编程，与 ESP32 建立连接。FT2232 芯片可在通道 A 提供 USB-to-JTAG 接口功能，并在通道 B 提供 USB-to-Serial 接口功能，便利开发人员的应用开发与调试。见 `ESP32-Ethernet-Kit V1.0 以太网子板（A 板）原理图`_。
|
||||
|
||||
USB 端口 USB 接口。可用作开发板的供电电源，或连接 PC 和开发板的通信接口。
|
||||
|
||||
电源开关 电源开关。拨向 **Boot** 按键一侧，开发板上电；拨离 **Boot** 按键一侧，开发板掉电。
|
||||
|
||||
5V Input 5V 电源接口建议仅在开发板自动运行（未连接 PC）时使用。仅用于全负荷工作下的后备电源。
|
||||
|
||||
5V Power On LED 当开发板通电后（USB 或外部 5V 供电），该红色指示灯将亮起。
|
||||
|
||||
DC/DC 转换器 直流 5 V 转 3.3 V，输出电流高达 2 A。
|
||||
|
||||
B 板连接器 1 对 2 针排针，用于连接 :ref:`PoE 子板（B 板）<get-started-esp32-ethernet-kit-b-v1.0-layout>`。
|
||||
|
||||
IP101GRI (PHY) 物理层 (PHY) 单端口10/100 快速以太网收发器 `IP101GRI`_ ，允许开发人员实现与以太网线缆的物理层连接。PHY 与 ESP32 通过简化媒体独立接口 (RMII) 实现连接。RMII 是 `媒体独立接口 (MII)`_ 的简化版本。PHY 可在 10/100 Mbps 速率下支持 IEEE 802.3 / 802.3u 标准。
|
||||
|
||||
RJ45 端口 以太网数据传输断口。
|
||||
|
||||
网络变压器 网络变压器属于以太网物理层的一部分，可保护电路免受故障和电压瞬变影响，包括防止收发器芯片和线缆之间产生共模信号。同时它也可以在收发器与以太网设备之间提供电流隔绝。
|
||||
|
||||
Link/Activity LED 2 个 LED（绿色和红色），可分别显示 PHY 处于 "Link" 状态或 "Activity" 状态。
|
||||
|
||||
BOOT 按键 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。
|
||||
|
||||
CH_PU 按键 复位按键。
|
||||
|
||||
GPIO Header 1 由 6 个未引出通孔组成，可连接至 ESP32 的备用 GPIO。具体介绍，请见 `GPIO Header 1`_。
|
||||
======================= ==================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================================
|
||||
|
||||
.. _get-started-esp32-ethernet-kit-b-v1.0-layout:
|
||||
|
||||
PoE 子板（B 板）
|
||||
^^^^^^^^^^^^^^^^^^^^^^^^^^
|
||||
|
||||
PoE 子板通过以太网电缆传输电能 (PoE)，为以太网子板（A 板）提供电源。PoE 子板（B 板）的主要组件见 `功能概述`_ 中的功能框图。
|
||||
|
||||
PoE 子板（B 板）具有以下特性：
|
||||
|
||||
* 支持 IEEE 802.3at
|
||||
* 电源输出：5 V，1.4 A
|
||||
|
||||
如需使用 PoE 功能，请用以太网线缆将以太网子板（A 板）上的 **RJ45 端口** 连接至 PoE 的交换机。太网子板（A 板）检测到来自 PoE 子板（B 板）的 5 V 供电后，将从 USB 供电自动切换至 PoE 供电。
|
||||
|
||||
.. figure:: ../../_static/esp32-ethernet-kit-b-v1.0-layout.png
|
||||
:align: center
|
||||
:scale: 80%
|
||||
:alt: ESP32-Ethernet-Kit - PoE 子板（B 板）
|
||||
:figclass: align-center
|
||||
|
||||
ESP32-Ethernet-Kit - PoE 子板（B 板）布局（点击放大）
|
||||
|
||||
========================== =================================================================================================================================
|
||||
主要组件 基本介绍
|
||||
========================== =================================================================================================================================
|
||||
A 板连接器 1 个 4 针排母，用于将 B 板连接至 :ref:`以太网子板（A 板）<get-started-esp32-ethernet-kit-a-v1.0-layout>`。
|
||||
外部电源终端 PoE 子板（B 板）备用电源。
|
||||
========================== =================================================================================================================================
|
||||
|
||||
.. _get-started-esp32-ethernet-kit-b-v1.0-setup-options:
|
||||
|
||||
设置选项
|
||||
-------------
|
||||
|
||||
本节介绍用于 ESP32-Ethernet-Kit 开发板的硬件配置选项。
|
||||
|
||||
|
||||
功能选择开关
|
||||
^^^^^^^^^^^^^^^
|
||||
|
||||
用户可使用 **功能选择开关** 配置特定 GPIO 管脚的功能。
|
||||
|
||||
======= ================ ================================================================
|
||||
DIP SW GPIO 管脚 管脚功能（ DIP SW 开启状态）
|
||||
======= ================ ================================================================
|
||||
1. GPIO14 连接至 FT2232，提供 JTAG 功能
|
||||
2. GPIO12 连接至 FT2232，提供 JTAG 功能
|
||||
3. GPIO13 连接至 FT2232，提供 JTAG 功能
|
||||
4. GPIO15 连接至 FT2232，提供 JTAG 功能
|
||||
5. GPIO4 连接至 FT2232，提供 JTAG 功能
|
||||
6. GPIO2 连接至板上 25 MHz 晶振
|
||||
7. GPIO5 连接至 IP101GRI 的 RESET_N 输入
|
||||
8. n/a
|
||||
======= ================ ================================================================
|
||||
|
||||
用户还可以关闭 DIP DW，将部分 GPIO 用于其他用途。
|
||||
|
||||
|
||||
流控
|
||||
^^^^^^^^^^^^
|
||||
|
||||
2 x 2 跳线连接器，可用于 UART 流控功能。
|
||||
|
||||
==== ======= =================================================
|
||||
. 信号 备注
|
||||
==== ======= =================================================
|
||||
1. MTDO GPIO13，见 `功能选择开关`_。
|
||||
2. MTCK GPIO15，见 `功能选择开关`_。
|
||||
3. RTS FT2232 的 RTS 信号
|
||||
4. CTS FT2232 的 CTS 信号
|
||||
==== ======= =================================================
|
||||
|
||||
|
||||
GPIO 分配
|
||||
---------------
|
||||
|
||||
本节介绍了 ESP32-Ethernet-Kit 开发板特定接口或功能的 GPIO 分配情况。
|
||||
|
||||
|
||||
IP101GRI (PHY) 接口
|
||||
^^^^^^^^^^^^^^^^^^^^^^^^
|
||||
|
||||
ESP32 (MAC) 与 IP101GRI (PHY) 的管脚对应关系见下：
|
||||
|
||||
==== ================ ===============
|
||||
. ESP32 管脚 (MAC) IP101GRI (PHY)
|
||||
==== ================ ===============
|
||||
*RMII 接口*
|
||||
---------------------------------------
|
||||
1. GPIO21 TX_EN
|
||||
2. GPIO19 TXD[0]
|
||||
3. GPIO22 TXD[1]
|
||||
4. GPIO25 RXD[0]
|
||||
5. GPIO26 RXD[1]
|
||||
6. GPIO27 CRS_DV
|
||||
7. GPIO0 REF_CLK
|
||||
---- ---------------- ---------------
|
||||
*串行管理接口*
|
||||
---------------------------------------
|
||||
8 GPIO23 MDC
|
||||
9 GPIO18 MDIO
|
||||
---- ---------------- ---------------
|
||||
*PHY 复位*
|
||||
---------------------------------------
|
||||
10 GPIO5 Reset_N
|
||||
==== ================ ===============
|
||||
|
||||
.. note::
|
||||
|
||||
除了 REF_CLK 之外，*RMII 接口* 下的所有管脚分配都是固定的，不能通过 IOMUX 或 GPIO 矩阵进行更改。
|
||||
|
||||
|
||||
GPIO Header 1
|
||||
^^^^^^^^^^^^^
|
||||
|
||||
本连接器包括 ESP32-Ethernet-Kit 开发板上部分不用做他用的 GPIO。
|
||||
|
||||
==== ================
|
||||
. ESP32 管脚
|
||||
==== ================
|
||||
1. GPIO32
|
||||
2. GPIO33
|
||||
3. GPIO34
|
||||
4. GPIO35
|
||||
5. GPIO36
|
||||
6. GPIO39
|
||||
==== ================
|
||||
|
||||
|
||||
GPIO Header 2
|
||||
^^^^^^^^^^^^^
|
||||
|
||||
本连接器包括具有特定 MII 功能的 GPIO（GPIO2 除外）。根据具体情况，部分以太网应用程序可能需要使用此功能。
|
||||
|
||||
==== ========== ================= ==================
|
||||
. ESP32 管脚 MII 功能 说明
|
||||
==== ========== ================= ==================
|
||||
1. GPIO17 EMAC_CLK_180 见说明 1。
|
||||
2. GPIO16 EMAC_CLK_OUT 见说明 1。
|
||||
3. GPIO4 EMAC_TX_ER
|
||||
4. GPIO2 n/a 见说明 2。
|
||||
5. GPIO5 EMAC_RX_CLK 见说明 2。
|
||||
==== ========== ================= ==================
|
||||
|
||||
.. note::
|
||||
|
||||
1. ESP32 芯片的 GPIO16 和 GPIO17 管脚没有引出至 ESP32-WROVER-B 模组的管脚，因此无法使用。如需使用 ESP32 的 GP1016 和 GPIO17 管脚，建议更换其他不含 SPIRAM 的模组，比如 ESP32-WROOM-32D 或 ESP32-SOLO-1。
|
||||
2. 具体功能取决与 `功能选择开关`_ 的设置。
|
||||
|
||||
|
||||
GPIO Header 3
|
||||
^^^^^^^^^^^^^
|
||||
|
||||
本连接器中 GPIO 的功能取决与 `功能选择开关`_ 的设置。
|
||||
|
||||
==== ===========
|
||||
. ESP32 管脚
|
||||
==== ===========
|
||||
1. GPIO15
|
||||
2. GPIO13
|
||||
3. GPIO12
|
||||
4. GPIO14
|
||||
5. GND
|
||||
6. 3V3
|
||||
==== ===========
|
||||
|
||||
|
||||
GPIO 管脚分配
|
||||
^^^^^^^^^^^^^^^^^^^^^^^
|
||||
|
||||
.. csv-table::
|
||||
:header: ESP32-WROVER-B,IP101GRI,UART,JTAG,GPIO,说明
|
||||
|
||||
S_VP,,,,IO36,
|
||||
S_VN,,,,IO39,
|
||||
IO34,,,,IO34,
|
||||
IO35,,,,IO35,
|
||||
IO32,,,,IO32,
|
||||
IO33,,,,IO33,
|
||||
IO25,RXD[0],,,,
|
||||
IO26,RXD[1],,,,
|
||||
IO27,CRS_DV,,,,
|
||||
IO14,,,TMS,IO14,
|
||||
IO12,,,TDI,IO12,
|
||||
IO13,,RTS,TCK,IO13,
|
||||
IO15,,CTS,TDO,IO15,
|
||||
IO2,,,,IO2,见下方说明 1 和说明 3。
|
||||
IO0,REF_CLK,,,,见下方说明 2 和说明 3。
|
||||
IO4,,,nTRST,IO4,
|
||||
IO16,,,,IO16 (NC),见下方说明 4。
|
||||
IO17,,,,IO17 (NC),见下方说明 4。
|
||||
IO5,Reset_N,,,IO5,
|
||||
IO18,MDIO,,,,
|
||||
IO19,TXD[0],,,,
|
||||
IO21,TX_EN,,,,
|
||||
RXD0,,RXD,,,
|
||||
TXD0,,TXD,,,
|
||||
IO22,TXD[1],,,,
|
||||
IO23,MDC,,,,
|
||||
|
||||
|
||||
.. note::
|
||||
|
||||
1. GPIO2 用于使能 PHY 的外部振荡器。
|
||||
2. GPIO0 用于为 PHY 提供 50 MHz 基准时钟源。为了防止传输线路延迟对时钟相位带来的影响，该时钟信号将首先被反相，而后提供给 PHY。
|
||||
3. 为防止 PHY 端 GPIO0 的上电状态受到时钟输出的影响，PHY 的外部晶振将在 ESP32 上电后通过 GPIO2 使能。
|
||||
4. ESP32 芯片的 GPIO16 和 GPIO17 管脚没有引出至 ESP32-WROVER-B 模组的管脚，因此无法使用。如需使用 ESP32 的 GP1016 和 GPIO17 管脚，建议更换其他不含 SPIRAM 的模组，比如 ESP32-WROOM-32D 或 ESP32-SOLO-1。
|
||||
|
||||
|
||||
应用程序开发
|
||||
-----------------------------
|
||||
|
||||
ESP32-Ethernet-Kit 上电前，请首先确认开发板完好无损。
|
||||
|
||||
初始设置
|
||||
^^^^^^^^^^^^^
|
||||
|
||||
1. 首先，请将 :ref:`以太网子板（A 板）<get-started-esp32-ethernet-kit-a-v1.0-layout>` 上的所有开关均拨至 **ON** 状态，即使 **功能选择开关** 处于默认状态。
|
||||
2. 为了方便应用程序的下载和测试，此时请不要在开发板安装任何条线帽，也不要为开发板接入任何信号。
|
||||
3. 此时可以连接 :ref:`PoE 子板（B 板） <get-started-esp32-ethernet-kit-b-v1.0-layout>`，但不要向 B 板连接任何外部电源。
|
||||
4. 使用 USB 数据线将 :ref:`以太网子板（A 板） <get-started-esp32-ethernet-kit-a-v1.0-layout>` 连接至 PC。
|
||||
5. 将 **电源开关** 从 GND 拨至 5V0 一侧。此时，**5V Power On LED** 应点亮。
|
||||
|
||||
|
||||
正式开始开发
|
||||
^^^^^^^^^^^^^^^^^^
|
||||
|
||||
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。
|
||||
|
||||
如需使用较早 GNU Make 编译系统，则请参考 :ref:`get-started-step-by-step` 章节。
|
||||
|
||||
请务必在进入下一步前，确保您已完成上述所有步骤。
|
||||
|
||||
|
||||
配置与加载以太网示例
|
||||
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
||||
|
||||
在完成开发环境设置和开发板测试后，您可以配置并烧录 :example:`ethernet/ethernet` 示例。本示例专门用于测试以太网功能，支持不同 PHY，包括 :ref:`ESP32-Ethernet-Kit V1.0 开发板 <get-started-esp32-ethernet-kit-b-v1.0>` 使用的 **IP101GRI**。
|
||||
|
||||
|
||||
相关文档
|
||||
-----------------
|
||||
|
||||
* `ESP32-Ethernet-Kit V1.0 以太网子板（A 板）原理图`_ (PDF)
|
||||
* `ESP32-Ethernet-Kit V1.0 PoE 子板（B 板）原理图`_ (PDF)
|
||||
* `《ESP32 技术规格书》 <https://www.espressif.com/sites/default/files/documentation/esp32_datasheet_cn.pdf>`_ (PDF)
|
||||
* `《ESP32-WROVER-B 技术规格书》 <https://espressif.com/sites/default/files/documentation/esp32-wrover-b_datasheet_cn.pdf>`_ (PDF)
|
||||
* :doc:`../api-guides/jtag-debugging/index`
|
||||
* :doc:`../hw-reference/index`
|
||||
|
||||
.. _ESP32-Ethernet-Kit V1.0 以太网子板（A 板）原理图: https://dl.espressif.com/dl/schematics/SCH_ESP32-ETHERNET-KIT_A_V1.0_20190517.pdf
|
||||
.. _ESP32-Ethernet-Kit V1.0 PoE 子板（B 板）原理图: https://dl.espressif.com/dl/schematics/SCH_ESP32-ETHERNET-KIT_B_V1.0_20190517.pdf
|
||||
.. _IP101GRI: http://www.bdtic.com/DataSheet/ICplus/IP101G_DS_R01_20121224.pdf
|
||||
.. _媒体独立接口 (MII): https://en.wikipedia.org/wiki/Media-independent_interface
|
||||
|
||||
|
||||
|
|
@ -1,374 +1 @@
|
|||
ESP32-Ethernet-Kit V1.0 入门指南
|
||||
=============================================
|
||||
|
||||
:link_to_translation:`en:[English]`
|
||||
|
||||
|
||||
本指南介绍了如何使用 ESP32-Ethernet-Kit 开发板以及配置相关功能。
|
||||
|
||||
:ref:`ESP32-Ethernet-Kit <get-started-esp32-ethernet-kit-b-v1.0>` 是一款以太网转 Wi-Fi 开发板，可为以太网设备赋予 Wi-Fi 连接功能。为了提供更灵活的电源选项，ESP32-Ethernet-Kit 也同时支持以太网供电 (PoE)。
|
||||
|
||||
准备工作
|
||||
-------------
|
||||
|
||||
* :ref:`ESP32-Ethernet-Kit V1.0 开发板 <get-started-esp32-ethernet-kit-b-v1.0>`
|
||||
* USB 数据线（A 转 Micro-B）
|
||||
* 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。
|
||||
|
||||
概述
|
||||
--------
|
||||
|
||||
ESP32-Ethernet-Kit 是一款来自 `乐鑫 <https://espressif.com>`_ 的开发板，由以太网子板（A 板）和 PoE 子板（B 板）两部分组成。其中 :ref:`以太网子板（A 板） <get-started-esp32-ethernet-kit-a-v1.0-layout>` 贴蓝牙 / Wi-Fi 双模 ESP32-WROVER-B 模组和单端口 10/100 快速以太网收发器 (PHY) IP101GRI。:ref:`PoE 子板（B 板） <get-started-esp32-ethernet-kit-b-v1.0-layout>` 提供以太网供电功能。ESP32-Ethernet-Kit 的 A 板可在不连接 B 板的情况下独立工作。
|
||||
|
||||
.. _get-started-esp32-ethernet-kit-b-v1.0:
|
||||
|
||||
.. figure:: ../../_static/esp32-ethernet-kit-v1.0.png
|
||||
:align: center
|
||||
:alt: ESP32-Ethernet-Kit V1.0
|
||||
:figclass: align-center
|
||||
|
||||
ESP32-Ethernet-Kit V1.0
|
||||
|
||||
为了实现程序下载和监控，A 板还集成了一款先进多协议 USB 桥接器（FTDI FT2232HL 芯片），进而允许开发人员直接通过 USB 接口，使用 JTAG 对 ESP32 进行调试，无需额外的 JTAG 调试器。
|
||||
|
||||
|
||||
功能概述
|
||||
-----------
|
||||
|
||||
ESP32-Ethernet-Kit 开发板的主要组件和连接方式见下。
|
||||
|
||||
.. figure:: ../../_static/esp32-ethernet-kit-block-diagram.png
|
||||
:align: center
|
||||
:scale: 50%
|
||||
:alt: ESP32-Ethernet-Kit 功能框图（点击放大）
|
||||
:figclass: align-center
|
||||
|
||||
ESP32-Ethernet-Kit 功能框图（点击放大）
|
||||
|
||||
|
||||
功能说明
|
||||
-----------
|
||||
|
||||
ESP32-Ethernet-Kit 开发板的主要组件、接口及控制方式见下。
|
||||
|
||||
|
||||
.. _get-started-esp32-ethernet-kit-a-v1.0-layout:
|
||||
|
||||
以太网子板（A 板）
|
||||
^^^^^^^^^^^^^^^^^^
|
||||
|
||||
.. figure:: ../../_static/esp32-ethernet-kit-a-v1.0-layout.png
|
||||
:align: center
|
||||
:scale: 80%
|
||||
:alt: ESP32-Ethernet-Kit - 以太网子板（A 板）布局
|
||||
:figclass: align-center
|
||||
|
||||
ESP32-Ethernet-Kit - 以太网子板（A 板）布局（点击放大）
|
||||
|
||||
下表将从图片右上角开始，以顺时针顺序介绍图中的主要组件。
|
||||
|
||||
.. list-table::
|
||||
:widths: 25 75
|
||||
:header-rows: 1
|
||||
|
||||
* - 主要组件
|
||||
- 基本介绍
|
||||
* - ESP32-WROVER-B 模组
|
||||
- 这款 ESP32 模组内置 64-Mbit PSRAM，可提供灵活的额外存储空间和数据处理能力。
|
||||
* - GPIO Header 2
|
||||
- 由 5 个未引出通孔组成，可连接至 ESP32 的部分 GPIO。具体介绍，请见 `GPIO Header 2`_。
|
||||
* - 流控
|
||||
- 跳线帽，可接入开发板信号。具体介绍，请见 `流控`_。
|
||||
* - 功能选择开关
|
||||
- DIP 开关，可配置 ESP32 部分 GPIO 的功能。具体介绍，请见 `功能选择开关`_。
|
||||
* - Tx/Rx LED
|
||||
- 2 个 LED，可显示 UART 传输的状态。
|
||||
* - GPIO Header 3
|
||||
- 可连接至 ESP32 的部分 GPIO，根据 `功能选择开关`_ 的位置有不同功能。
|
||||
* - FT2232
|
||||
- FT2232 多协议 USB 转串口桥接器。开发人员可通过 USB 接口对 FT2232 芯片进行控制和编程，与 ESP32 建立连接。FT2232 芯片可在通道 A 提供 USB-to-JTAG 接口功能，并在通道 B 提供 USB-to-Serial 接口功能，便利开发人员的应用开发与调试。见 `ESP32-Ethernet-Kit V1.0 以太网子板（A 板）原理图`_。
|
||||
* - USB 端口
|
||||
- USB 接口。可用作开发板的供电电源，或连接 PC 和开发板的通信接口。
|
||||
* - 电源开关
|
||||
- 电源开关。拨向 **Boot** 按键一侧，开发板上电；拨离 **Boot** 按键一侧，开发板掉电。
|
||||
* - 5V Input
|
||||
- 5V 电源接口建议仅在开发板自动运行（未连接 PC）时使用。仅用于全负荷工作下的后备电源。
|
||||
* - 5V Power On LED
|
||||
- 当开发板通电后（USB 或外部 5V 供电），该红色指示灯将亮起。
|
||||
* - DC/DC 转换器
|
||||
- 直流 5 V 转 3.3 V，输出电流高达 2 A。
|
||||
* - B 板连接器
|
||||
- 1 对 2 针排针，用于连接 :ref:`PoE 子板（B 板）<get-started-esp32-ethernet-kit-b-v1.0-layout>`。
|
||||
* - IP101GRI (PHY)
|
||||
- 物理层 (PHY) 单端口10/100 快速以太网收发器 `IP101GRI`_ ，允许开发人员实现与以太网线缆的物理层连接。PHY 与 ESP32 通过简化媒体独立接口 (RMII) 实现连接。RMII 是 `媒体独立接口 (MII)`_ 的简化版本。PHY 可在 10/100 Mbps 速率下支持 IEEE 802.3 / 802.3u 标准。
|
||||
* - RJ45 端口
|
||||
- 以太网数据传输断口。
|
||||
* - 网络变压器
|
||||
- 网络变压器属于以太网物理层的一部分，可保护电路免受故障和电压瞬变影响，包括防止收发器芯片和线缆之间产生共模信号。同时它也可以在收发器与以太网设备之间提供电流隔绝。
|
||||
* - Link/Activity LED
|
||||
- 2 个 LED（绿色和红色），可分别显示 PHY 处于 "Link" 状态或 "Activity" 状态。
|
||||
* - BOOT 按键
|
||||
- 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。
|
||||
* - CH_PU 按键
|
||||
- 复位按键。
|
||||
* - GPIO Header 1
|
||||
- 由 6 个未引出通孔组成，可连接至 ESP32 的备用 GPIO。具体介绍，请见 `GPIO Header 1`_。
|
||||
|
||||
.. _get-started-esp32-ethernet-kit-b-v1.0-layout:
|
||||
|
||||
PoE 子板（B 板）
|
||||
^^^^^^^^^^^^^^^^^^^^^^^^^^
|
||||
|
||||
PoE 子板通过以太网电缆传输电能 (PoE)，为以太网子板（A 板）提供电源。PoE 子板（B 板）的主要组件见 `功能概述`_ 中的功能框图。
|
||||
|
||||
PoE 子板（B 板）具有以下特性：
|
||||
|
||||
* 支持 IEEE 802.3at
|
||||
* 电源输出：5 V，1.4 A
|
||||
|
||||
如需使用 PoE 功能，请用以太网线缆将以太网子板（A 板）上的 **RJ45 端口** 连接至 PoE 的交换机。太网子板（A 板）检测到来自 PoE 子板（B 板）的 5 V 供电后，将从 USB 供电自动切换至 PoE 供电。
|
||||
|
||||
.. figure:: ../../_static/esp32-ethernet-kit-b-v1.0-layout.png
|
||||
:align: center
|
||||
:scale: 80%
|
||||
:alt: ESP32-Ethernet-Kit - PoE 子板（B 板）
|
||||
:figclass: align-center
|
||||
|
||||
ESP32-Ethernet-Kit - PoE 子板（B 板）布局（点击放大）
|
||||
|
||||
========================== =================================================================================================================================
|
||||
主要组件 基本介绍
|
||||
========================== =================================================================================================================================
|
||||
A 板连接器 1 个 4 针排母，用于将 B 板连接至 :ref:`以太网子板（A 板）<get-started-esp32-ethernet-kit-a-v1.0-layout>`。
|
||||
外部电源终端 PoE 子板（B 板）备用电源。
|
||||
========================== =================================================================================================================================
|
||||
|
||||
.. _get-started-esp32-ethernet-kit-b-v1.0-setup-options:
|
||||
|
||||
设置选项
|
||||
-------------
|
||||
|
||||
本节介绍用于 ESP32-Ethernet-Kit 开发板的硬件配置选项。
|
||||
|
||||
|
||||
功能选择开关
|
||||
^^^^^^^^^^^^^^^
|
||||
|
||||
用户可使用 **功能选择开关** 配置特定 GPIO 管脚的功能。
|
||||
|
||||
======= ================ ================================================================
|
||||
DIP SW GPIO 管脚 管脚功能（ DIP SW 开启状态）
|
||||
======= ================ ================================================================
|
||||
1. GPIO14 连接至 FT2232，提供 JTAG 功能
|
||||
2. GPIO12 连接至 FT2232，提供 JTAG 功能
|
||||
3. GPIO13 连接至 FT2232，提供 JTAG 功能
|
||||
4. GPIO15 连接至 FT2232，提供 JTAG 功能
|
||||
5. GPIO4 连接至 FT2232，提供 JTAG 功能
|
||||
6. GPIO2 连接至板上 25 MHz 晶振
|
||||
7. GPIO5 连接至 IP101GRI 的 RESET_N 输入
|
||||
8. n/a
|
||||
======= ================ ================================================================
|
||||
|
||||
用户还可以关闭 DIP DW，将部分 GPIO 用于其他用途。
|
||||
|
||||
|
||||
流控
|
||||
^^^^^^^^^^^^
|
||||
|
||||
2 x 2 跳线连接器，可用于 UART 流控功能。
|
||||
|
||||
==== ======= =================================================
|
||||
. 信号 备注
|
||||
==== ======= =================================================
|
||||
1. MTDO GPIO13，见 `功能选择开关`_。
|
||||
2. MTCK GPIO15，见 `功能选择开关`_。
|
||||
3. RTS FT2232 的 RTS 信号
|
||||
4. CTS FT2232 的 CTS 信号
|
||||
==== ======= =================================================
|
||||
|
||||
|
||||
GPIO 分配
|
||||
---------------
|
||||
|
||||
本节介绍了 ESP32-Ethernet-Kit 开发板特定接口或功能的 GPIO 分配情况。
|
||||
|
||||
|
||||
IP101GRI (PHY) 接口
|
||||
^^^^^^^^^^^^^^^^^^^^^^^^
|
||||
|
||||
ESP32 (MAC) 与 IP101GRI (PHY) 的管脚对应关系见下：
|
||||
|
||||
==== ================ ===============
|
||||
. ESP32 管脚 (MAC) IP101GRI (PHY)
|
||||
==== ================ ===============
|
||||
*RMII 接口*
|
||||
---------------------------------------
|
||||
1. GPIO21 TX_EN
|
||||
2. GPIO19 TXD[0]
|
||||
3. GPIO22 TXD[1]
|
||||
4. GPIO25 RXD[0]
|
||||
5. GPIO26 RXD[1]
|
||||
6. GPIO27 CRS_DV
|
||||
7. GPIO0 REF_CLK
|
||||
---- ---------------- ---------------
|
||||
*串行管理接口*
|
||||
---------------------------------------
|
||||
8 GPIO23 MDC
|
||||
9 GPIO18 MDIO
|
||||
---- ---------------- ---------------
|
||||
*PHY 复位*
|
||||
---------------------------------------
|
||||
10 GPIO5 Reset_N
|
||||
==== ================ ===============
|
||||
|
||||
.. note::
|
||||
|
||||
除了 REF_CLK 之外，*RMII 接口* 下的所有管脚分配都是固定的，不能通过 IOMUX 或 GPIO 矩阵进行更改。
|
||||
|
||||
|
||||
GPIO Header 1
|
||||
^^^^^^^^^^^^^
|
||||
|
||||
本连接器包括 ESP32-Ethernet-Kit 开发板上部分不用做他用的 GPIO。
|
||||
|
||||
==== ================
|
||||
. ESP32 管脚
|
||||
==== ================
|
||||
1. GPIO32
|
||||
2. GPIO33
|
||||
3. GPIO34
|
||||
4. GPIO35
|
||||
5. GPIO36
|
||||
6. GPIO39
|
||||
==== ================
|
||||
|
||||
|
||||
GPIO Header 2
|
||||
^^^^^^^^^^^^^
|
||||
|
||||
本连接器包括具有特定 RMII 功能的 GPIO（GPIO2 除外）。根据具体情况，部分以太网应用程序可能需要使用此功能。
|
||||
|
||||
==== ========== ================= ==================
|
||||
. ESP32 管脚 RMII 功能 说明
|
||||
==== ========== ================= ==================
|
||||
1. GPIO17 EMAC_CLK_180 见说明 1。
|
||||
2. GPIO16 EMAC_CLK_OUT 见说明 1。
|
||||
3. GPIO4 EMAC_TX_ER
|
||||
4. GPIO2 n/a 见说明 2。
|
||||
5. GPIO5 EMAC_RX_CLK 见说明 2。
|
||||
==== ========== ================= ==================
|
||||
|
||||
.. note::
|
||||
|
||||
1. ESP32 芯片的 GPIO16 和 GPIO17 管脚没有引出至 ESP32-WROVER-B 模组的管脚，因此无法使用。如需使用 ESP32 的 GP1016 和 GPIO17 管脚，建议更换其他不含 SPIRAM 的模组，比如 ESP32-WROOM-32D 或 ESP32-SOLO-1。
|
||||
2. 具体功能取决与 `功能选择开关`_ 的设置。
|
||||
|
||||
|
||||
GPIO Header 3
|
||||
^^^^^^^^^^^^^
|
||||
|
||||
本连接器中 GPIO 的功能取决与 `功能选择开关`_ 的设置。
|
||||
|
||||
==== ===========
|
||||
. ESP32 管脚
|
||||
==== ===========
|
||||
1. GPIO15
|
||||
2. GPIO13
|
||||
3. GPIO12
|
||||
4. GPIO14
|
||||
5. GND
|
||||
6. 3V3
|
||||
==== ===========
|
||||
|
||||
|
||||
GPIO 管脚分配
|
||||
^^^^^^^^^^^^^^^^^^^^^^^
|
||||
|
||||
.. csv-table::
|
||||
:header: ESP32-WROVER-B,IP101GRI,UART,JTAG,GPIO,说明
|
||||
|
||||
S_VP,,,,IO36,
|
||||
S_VN,,,,IO39,
|
||||
IO34,,,,IO34,
|
||||
IO35,,,,IO35,
|
||||
IO32,,,,IO32,
|
||||
IO33,,,,IO33,
|
||||
IO25,RXD[0],,,,
|
||||
IO26,RXD[1],,,,
|
||||
IO27,CRS_DV,,,,
|
||||
IO14,,,TMS,IO14,
|
||||
IO12,,,TDI,IO12,
|
||||
IO13,,RTS,TCK,IO13,
|
||||
IO15,,CTS,TDO,IO15,
|
||||
IO2,,,,IO2,见下方说明 1 和说明 3。
|
||||
IO0,REF_CLK,,,,见下方说明 2 和说明 3。
|
||||
IO4,,,nTRST,IO4,
|
||||
IO16,,,,IO16 (NC),见下方说明 4。
|
||||
IO17,,,,IO17 (NC),见下方说明 4。
|
||||
IO5,Reset_N,,,IO5,
|
||||
IO18,MDIO,,,,
|
||||
IO19,TXD[0],,,,
|
||||
IO21,TX_EN,,,,
|
||||
RXD0,,RXD,,,
|
||||
TXD0,,TXD,,,
|
||||
IO22,TXD[1],,,,
|
||||
IO23,MDC,,,,
|
||||
|
||||
|
||||
.. note::
|
||||
|
||||
1. GPIO2 用于使能 PHY 的外部振荡器。
|
||||
2. GPIO0 用于为 PHY 提供 50 MHz 基准时钟源。为了防止传输线路延迟对时钟相位带来的影响，该时钟信号将首先被反相，而后提供给 PHY。
|
||||
3. 为防止 PHY 端 GPIO0 的上电状态受到时钟输出的影响，PHY 的外部晶振将在 ESP32 上电后通过 GPIO2 使能。
|
||||
4. ESP32 芯片的 GPIO16 和 GPIO17 管脚没有引出至 ESP32-WROVER-B 模组的管脚，因此无法使用。如需使用 ESP32 的 GP1016 和 GPIO17 管脚，建议更换其他不含 SPIRAM 的模组，比如 ESP32-WROOM-32D 或 ESP32-SOLO-1。
|
||||
|
||||
|
||||
.. _get-started-esp32-ethernet-kit-start-development:
|
||||
|
||||
应用程序开发
|
||||
-----------------------------
|
||||
|
||||
ESP32-Ethernet-Kit 上电前，请首先确认开发板完好无损。
|
||||
|
||||
初始设置
|
||||
^^^^^^^^^^^^^
|
||||
|
||||
1. 首先，请将 :ref:`以太网子板（A 板）<get-started-esp32-ethernet-kit-a-v1.0-layout>` 上的所有开关均拨至 **ON** 状态，即使 **功能选择开关** 处于默认状态。
|
||||
2. 为了方便应用程序的下载和测试，此时请不要在开发板安装任何条线帽，也不要为开发板接入任何信号。
|
||||
3. 此时可以连接 :ref:`PoE 子板（B 板） <get-started-esp32-ethernet-kit-b-v1.0-layout>`，但不要向 B 板连接任何外部电源。
|
||||
4. 使用 USB 数据线将 :ref:`以太网子板（A 板） <get-started-esp32-ethernet-kit-a-v1.0-layout>` 连接至 PC。
|
||||
5. 将 **电源开关** 从 GND 拨至 5V0 一侧。此时，**5V Power On LED** 应点亮。
|
||||
|
||||
|
||||
正式开始开发
|
||||
^^^^^^^^^^^^^^^^^^
|
||||
|
||||
现在，请前往 :doc:`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。
|
||||
|
||||
请务必在进入下一步前，确保您已完成上述所有步骤。
|
||||
|
||||
|
||||
配置与加载以太网示例
|
||||
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
||||
|
||||
在完成开发环境设置和开发板测试后，您可以配置并烧录 :example:`ethernet/ethernet` 示例。本示例专门用于测试以太网功能，支持不同 PHY，包括 :ref:`ESP32-Ethernet-Kit V1.0 开发板 <get-started-esp32-ethernet-kit-b-v1.0>` 使用的 **IP101GRI**。
|
||||
|
||||
|
||||
相关文档
|
||||
-----------------
|
||||
|
||||
* `ESP32-Ethernet-Kit V1.0 以太网子板（A 板）原理图`_ (PDF)
|
||||
* `ESP32-Ethernet-Kit V1.0 PoE 子板（B 板）原理图`_ (PDF)
|
||||
* `《ESP32 技术规格书》 <https://www.espressif.com/sites/default/files/documentation/esp32_datasheet_cn.pdf>`_ (PDF)
|
||||
* `《ESP32-WROVER-B 技术规格书》 <https://espressif.com/sites/default/files/documentation/esp32-wrover-b_datasheet_cn.pdf>`_ (PDF)
|
||||
* :doc:`../api-guides/jtag-debugging/index`
|
||||
* :doc:`../hw-reference/index`
|
||||
|
||||
.. _ESP32-Ethernet-Kit V1.0 以太网子板（A 板）原理图: https://dl.espressif.com/dl/schematics/SCH_ESP32-ETHERNET-KIT_A_V1.0_20190517.pdf
|
||||
.. _ESP32-Ethernet-Kit V1.0 PoE 子板（B 板）原理图: https://dl.espressif.com/dl/schematics/SCH_ESP32-ETHERNET-KIT_B_V1.0_20190517.pdf
|
||||
.. _IP101GRI: http://www.bdtic.com/DataSheet/ICplus/IP101G_DS_R01_20121224.pdf
|
||||
.. _媒体独立接口 (MII): https://en.wikipedia.org/wiki/Media-independent_interface
|
||||
|
||||
|
||||
.. include:: ../../en/hw-reference/get-started-ethernet-kit.rst
|
||||
|
|
|
|||
Loading…
Reference in a new issue