What Are The Espressif Module Programming Tools; What Is The Difference Between The Factory Mode And Developer Mode Of The Flash Download Tool; Why Does The Programming Failed For The Jig With A 4-Port Hub In Factory Mode; Succeeded When Replacing The Module With Esp32-Weover-E, What Is The Reason - Espressif Systems ESP Faq

Chapter 2. Development environment
ets Jan 8 2013,rst cause:1, boot mode:(7,7)
waiting for host
• waiting for host means the Boot is in SDIO mode, indicating that GPIO15 (MTDO) is pulled up
(HIGH). Please refer to

2.4.13 What are the Espressif module programming tools?

• For Espressif programming software, please go to
dows environment only.
• Espressif programming tool
development.
2.4.14 What is the difference between the Factory mode and Developer mode of the flash
download tool?
• Factory mode supports multi-channel downloads, while Developer mode only supports single channel.
• The path of bin files under the Factory mode is relative, while under Developer is absolute.

2.4.15 Why does the programming failed for the jig with a 4-port hub in factory mode ?

:CHIP: ESP32 | ESP8266 :
• It is because Espressif products complete the calibration operation through transmitting some pack-
ets when starting up. This operation requires 3.3 V voltage and a guaranteed peak current of 500
mA. Therefore, when it comes to more than one ports, there will be situations where the computer
cannot program or the programming is interrupted due to the insufficient power supply of the com-
puter's USB when programming via connecting to a computer's USB. It is recommended to use
the hub for programming and supply power to the hub in the meantime.
2.4.16 I'm using an ESP32-WROVER-B module to download the AT firmware via the
flash download tool. However, an error occurred after writing to flash. But the
same operation succeeded when replacing the module with ESP32-WEOVER-E,
what is the reason?
• The ESP32-WROVER-B module leads out the SPI Flash pin, but the ESP32-WROVER-E module
does not. Please check whether the SPI Flash pin of the ESP32-WROVER-B module is re-used
by other external application circuits.
• Connecting the CMD pin of the SPI Flash in ESP32-WROVER-B to GND will cause the flash
failing to start. And the following error log will be printed:
rst:0x10 (RTCWDT_RTC_RESET),boot:0x1b
flash read err,
ets_main.c 371
ets Jun 8 2016
Espressif Systems
ESP8266 Boot Mode
esptool is written based on Python with open-source code, supporting secondary
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Description.
Flash Download Tools. Installation-free GUI tools for Win-
(SPI_FAST_FLASH_BOOT)
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