How To Know The Version Of Esp-Idf, Is It Recorded In A Certain Document; How To Optimize Esp-Idf Compilation In Windows Environment; Is There An Esptool That Can Be Used Directly On Windows; Firmware Update - Espressif Systems ESP Faq

Chapter 2. Development environment

2.3.10 How to know the version of ESP-IDF, is it recorded in a certain document?

• Command line: You can obtain the version number by inputting idf.py --version in the terminal with
an IDF environment.
• CMake script: You can obtain the version number through the variable ${IDF_VERSION_MAJOR}.
${IDF_VERSION_MINOR}.${IDF_VERSION_PATCH}.
• Code compilation:
during code compilation or directly using the macro definition of version in "compo-
nents/esp_common/include/esp_idf_version.h".

2.3.11 How to optimize ESP-IDF compilation in Windows environment?

• Please add the directories of ESP-IDF source code and compiler .espressif to the exclusions of anti-virus
program.

2.3.12 Is there an esptool that can be used directly on Windows?

• You can go to esptool –> Releases
on the drop-down page.

2.4 Firmware update

2.4.1 How does the host MCU flash ESP32 via serial interfaces?

• For the related protocol, please refer to
refer to Serial Protocol.
• For code examples, please refer to esp-serial-flasher.

2.4.2 How to download firmware for ESP32 series modules using the USB-Serial tool?

The methods are as follows:
Note: For ESP8266 modules, IO15 should be specially connected to ground.
Espressif Systems
You can obtain the version number by calling esp_get_idf_version
and download the Windows version of the esptool from the Asset column
ESP32 Serial
Modules 3V3 GND
Serial tool 3V3 GND
Submit Document Feedback
Protocol. For the corresponding documentation, please
TXD RXD IO0
RXD TXD DTR
17
EN
RTS
Release master