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This document is intended to help you set up the software development environment for the hardware based on the ESP32 chip by Espressif. After that, a simple example will show you how to use ESP-IDF (Espressif IoT Development Framework) for menu configuration, then for building and flashing firmware onto an ESP32 board. Espressif Systems-Flash Download Tool-Flashing Firmware. Visit the official link, in order to download the ESP Flash Download Tool, click on Tools section to select the tool or you can directly download from this link. Tool Installation. After Downloading the tool, extracts the files and open the “flashdownloadtoolsv3.6.5” application file.
Hi,I've been always using Arduino IDE to load firmware to my ESP32 device, but recently I need to switch over to the ESP32 Download Tool. I have a hard time to find/fill in the Bootloader and Partition Bin files and their addresses, hope someone can help provide some hints or guideline.
This is my Arduino Set Up for my custom board:
*Board: ESP32 Dev Module
*Upload Speed: 115200
Espressif Flash Tool
*Flash frequency: 40Mhz
*Flash Mode: DIO
*Flash Size: 4MB
*Partition Scheme: Minimal SPIFFS (since I use BLE and Wifi for OTA update, which need more memory space)
For the ESP32 Download Tool (see my attached picture)
1. For the bootloader:
I did try to use bootloader_qio_40m.bin at the address 0x1000
-> I got the file from Arduinohardwareespressifesp32toolssdkbin
-> For the address, I am not sure which one to put there so I use a random address that I found online, where other people use it.
-> I got an IO error saying the bootload is not available in the flash download tool folder.
Espressif Flash Tool Online
IOError: [Errno 2] No such file or directory: u'C:...Programmer Softwareflash_download_tools_v3.6.5_0flash_download_tools_v3.6.5flash_download_tools_v3.6.5dl_temp/_temp_by_dltool/downloadPanel1bootloader_qio_40m.bin_rep'
2. For the partition:
I have min_spiffs.bin at the address 0x4000
->I used Python to generate the bin file from the min_spiffs.csv from the folder Arduinohardwareespressifesp32toolspartitions
-> Same as the bootloader's address, I really don't know what to use for the partition address.
3. For my firmware:
I have the .bin file generated by Arduino, address at 0x10000. It looks like this is a valid address.
Any thoughts?
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A lot of people will prefer now to use Arduino IDE for this.Alternatively you may use:
First you need a firmware file. You can build one yourself with the Toolchain or download one:
Espressif Flash Tool Online
- Espressif firmware source updated at http://bbs.espressif.com
- Electrodragon's ESP8266 AT-Command firmware describes the AT Firmware, where to get it from and how to flash it. There is a link to Expressif's release page.
- NodeMCU - firmware for running Lua scripts, or see the forum article Build your own custom NodeMCU firmware in the cloud
- MicroPython - firmware for running Python 3 scripts. Supports several microcontrollers including the ESP8266.
- ESP8266Basic - Basic interpreter with browser based development.
- Other projects listed on the user projects section of the wiki home
- See this site for a prac.http://www.xess.com/blog/esp8266-reflash/
Prerequisites
To flash the ESP8266, you'll need first need to wire things up. See start-with-esp-12-arduino -> Hardware for the basics.
Connect GPIO 0 to ground and reboot the ESP8266 to enter flashing mode.