Introduction
Device Firmware Upgrade (DFU) is a boot loading mechanism to upgrade firmware for target devices, allowing developers to quickly fix defects and enrich product features.
This document focuses on DFU working principles, GR5xx DFU schemes, and firmware upgrade steps.
Before getting started, you can refer to the following documents.
| Name | Description |
|---|---|
|
Developer guide of the specific GR5xx System-on-Chip (SoC) |
Introduces GR5xx Software Development Kit (SDK) and how to develop and debug applications based on the SDK. |
|
GProgrammer User Manual |
Lists GProgrammer operational instructions including downloading firmware to and encrypting firmware on GR5xx SoCs. |
|
J-Link/J-Trace User Guide |
Provides J-Link operational instructions. Available at https://www.segger.com/downloads/jlink/UM08001_JLink.pdf. |
|
Keil User Guide |
Offers detailed Keil operational instructions. Available at https://www.keil.com/support/man/docs/uv4/. |
|
Bluetooth Core Spec |
Offers official Bluetooth standards and core specification from Bluetooth SIG. |
