www.espressif.com
Flash Download Tool
User Guide
Version 1.1
Espressif Systems
Copyright © 2019
Related Product:
•
ESP32 Serials
•
ESP8266 Serials
About This Guide
This document describes how to download and configure firmware on Espressif modules,
using Espressif's Flash Download Tool. It also lists some frequently asked questions and
answers. This document is applicable to Flash Download Tool V3.6.0 and later versions.
Release Notes
Documentation Change Notification
Espressif provides email notifications to keep customers updated on changes to
technical documentation. Please subscribe https://www.espressif.com/en/subscribe.
Certification
Download certificates for Espressif products https://www.espressif.com/en/certificates.
Date
Version
Release notes
2018.08
V1.0
Initial release
2019.03
V1.1
• Updated Sections 3.2.2.5, 3.5, 5.1, and
Appendix A;
• Added Section 4.1.3;
• Removed Section 5.6.
Table of Contents
1. Preparation 1 .............................................................................................................................
2. Hardware 2 ................................................................................................................................
2.1. USB to Serial Port Test Board! 2"....................................................................................................
2.2. Module to which firmware is downloaded! 3".................................................................................
2.2.1. Working modes! 3".............................................................................................................
2.2.2. Device Connection! 3".......................................................................................................
3. Software 4 .................................................................................................................................
3.1. Software Interface! 4"......................................................................................................................
3.2. SPIDownload Tab! 6".......................................................................................................................
3.2.1. Common Configuration! 6"................................................................................................
3.2.2. Other Configuration! 7"......................................................................................................
3.2.2.1. CombineBin Button! 7".....................................................................................
3.2.2.2. DoNotChgBin Option! 7"..................................................................................
3.2.2.3. Default Button! 7".............................................................................................
3.2.2.4. SpiAutoSet Option! 8"......................................................................................
3.2.2.5. LOCK SETTINGS Option! 8"............................................................................
3.3. HSPIDownload Tab! 8"....................................................................................................................
3.4. MultiDownload Tab! 9"....................................................................................................................
3.5. RFConfig Tab! 9".............................................................................................................................
3.6. GPIOConfig Tab! 9".........................................................................................................................
4. Download 11 .............................................................................................................................
4.1. ESP32 Series Products! 11"............................................................................................................
4.1.1. ESP32 Series Products that Use External Flash! 11"........................................................
4.1.2. ESP32 Series Products that Use Integrated Flash! 16".....................................................
4.1.3. Enable Encryption for Firmware Downloading! 16"...........................................................
4.2. ESP8266 Series Products! 21"........................................................................................................
4.2.1. ESP-WROOM-02 ! 21".......................................................................................................
4.2.2. ESP-WROOM-S2! 26"........................................................................................................
4.3. ESP8266 Series Products! 27"........................................................................................................
5. FAQs 28 .....................................................................................................................................
5.1. COM Related Errors! 28".................................................................................................................
5.2. Synchronization Related Errors! 28"................................................................................................
5.3. Efuse Related Errors! 29"................................................................................................................
5.4. Download Related Errors! 29".........................................................................................................
5.5. Operation related error! 29".............................................................................................................
A. Appendix - Contents of the Flash Download Tool Folder 30..................................................
!
1. Preparation"
1. Preparation
The software and hardware resources required for downloading firmware to flash are listed
below.
• Hardware:
- 1 x USB test board
- 1 x module to which firmware is downloaded
- 1 x PC (Windows XP, Windows 7, Windows 10)
• Software:
- Flash Download Tool (For the detailed structure of this tool, please refer to Appendix
A)!
Espressif
! /311
2019.03
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