概述
描述
By using the FIT module, users can easily incorporate firmware update functionality and secure boot functionality into their applications.
Product Composition
- Firmware Update Module
- Demonstration project (Sample applications: Bootloader, Update application)
- Renesas Image Generator (Initial and update image generation tool)
特性
- Firmware update functionality can be easily integrated using the RX/RL78 family.
- The product is equipped with a secure boot function to verify the legitimacy of the firmware.
- The product offers a variety of update methods, such as Partial update method/Full update method/Dual-Bank method.
- Demonstration projects are available for boards with compatible devices.
- The acquisition of update data is implemented in the user application.
Therefore, various update environments can be constructed. - Tools for generating initial/update images for firmware updates are provided. (Renesas Image Generator)
- About the Firmware Updating Communications Module
We provide a module that controls communication between the primary MCU and the secondary MCU during firmware updates for the secondary MCU.
Learn More
发布信息
| Target Device | Product Name | Version/Release | Providing Method |
|---|---|---|---|
| RL78/G22 RL78/G23 RL78/G24 RL78/L23 | RL78/G22, RL78/G23, RL78/G24, RL78/L23 Firmware Update Module | Latest Ver.: V.2.04 Release 00 Released: Aug. 27, 2025 | Download: RL78/G22, RL78/G23, RL78/G24, RL78/L23 Firmware Update Module Rev.2.05 - Sample Code (ZIP) |
| RX Family | RX Family Firmware Update Module Using Firmware Integration Technology | Latest Ver.: V.2.06 Release 00 Released: Jan. 23, 2026 | Download: RX Family Firmware Update module Using Firmware Integration Technology Application Notes Rev.2.06 - Sample Code (ZIP) |
目标设备
文档
|
|
|
|
|---|---|---|
| 类型 | 文档标题 | 日期 |
| 应用说明 |
PDF
1.02 MB
日本語
This application note describes a firmware updating communications module for the RL78/G22 and RL78/G23.
|
|
| 应用说明 |
PDF
4.94 MB
日本語
By using the module, users can easily incorporate firmware update functionality and secure boot functionality into their applications. The firmware update module provides middleware that functions as a component when adding firmware update functionality to the user's system.
|
|
| 应用说明 |
PDF
1.64 MB
日本語
The Firmware Updating Communications Module provides communication control functionality between microcontrollers in a primary MCU-secondary MCU system configuration. By using this module, firmware updates for the secondary MCU can be easily performed via the primary MCU. The communication protocol supports UART or 3-wire SPI.
|
|
| 应用说明 |
PDF
12.71 MB
日本語
By using the FIT module, users can easily incorporate firmware update functionality and secure boot functionality into their applications.
The firmware update module provides middleware that functions as a component when adding firmware update functionality to the user's system.
|
|
4 项目
|
||
设计和开发
样例程序
样例程序
筛选
|
||
|---|---|---|
| 类型 | 文档标题 | 日期 日期 |
| 示例代码 | RL78/G22, RL78/G23 Firmware Updating Communications Module Rev.1.11 - Sample Code
[Toolchains=CC-RL|V1.15.00]
ZIP
7.02 MB
应用:
工业, 工业自动化, 楼宇自动化, 消费电子产品
Compiler:
CC-RL
Function:
Application Example, Communication Interface
IDE:
e2 studio
In a system consisting of a primary MCU and a secondary MCU, this module allows user updating of the firmware of the secondary MCU. This application note explains how to use this module, incorporate its API functions into user applications, and extend its functionality.
|
|
| 示例代码 | RL78/G22, RL78/G23, RL78/G24, RL78/L23 Firmware Update Module Rev.2.05 - Sample Code
[Toolchains=CC-RL|V1.16.00;LLVM for Renesas RL78|17.0.1.202512;IAR Compiler for RL78|v.5.20.2]
ZIP
42.00 MB
应用:
消费电子产品
Compiler:
CC-RL, ICCRL78, LLVM for Renesas RL78
Function:
Driver or Library
IDE:
e2 studio, IAR EWRL78
|
|
| 示例代码 | RX Family Firmware Updating Communications Module Using Firmware Integration Technology Rev.1.11 - Sample Code
[Toolchains=CC-RX|V3.07.00;GNURX|14.2.0.202505]
ZIP
51.35 MB
Compiler:
CC-RX, GNURX
Function:
Application Example, Communication Interface, Driver or Library
IDE:
e2 studio
|
|
| 示例代码 | RX Family Firmware Update module Using Firmware Integration Technology Application Notes Rev.2.06 - Sample Code
[Software=RX Driver Package|V1.48],[Toolchains=CC-RX|V3.07.00;GNURX|14.2.0.202505;IAR Compiler for RX|v.5.20.1]
ZIP
156.61 MB
应用:
消费电子产品
Compiler:
CC-RX, ICCRX
Function:
Driver or Library
IDE:
e2 studio, GCC EWRX, IAR EWRX
By using the FIT module, users can easily incorporate firmware update functionality and secure boot functionality into their applications.
The firmware update module provides middleware that functions as a component when adding firmware update functionality to the user's system.
|
|
4 项目
|
||
Additional Details
Function
By using the FIT module, users can easily incorporate firmware update functionality and secure boot functionality into their applications. (A firmware update is a process in which a device overwrites its own firmware with a new version of the firmware. Firmware updates may be applied to fix bugs, add new functions, or improve performance.)
This module has the following functions.
- Function for importing the update image acquired via the communication interface, etc. into the MCU.
- Function to write the update image to the built-in flash. (self-programming function)
- Function to activate the update image.
- Function to verify the validity of the image and boot. (secure boot function)
- The following update methods are provided.
- Partial Update Method
- Full Update Method (without buffer)
- Full Update Method (buffer is external flash)
- Dual-Bank Method (Only for products with dual bank function)
- Tools for generating initial/update images for firmware updates are provided. (Renesas Image Generator)
Update Method
Partial Update Method
图像
Full Update Method (without buffer)
图像
Full Update Method (buffer is external flash)
图像
Dual-Bank Method (Only for products with dual bank function)
图像
Renesas Image Generator
- Renesas Image Generator is a utility tool that generates firmware images for use with firmware update modules. The Renesas Image Generator can generate the following images used by the firmware update module.
- Initial image:An image file containing the bootloader and application program that is programmed using Flash Writer at the time of initial system configuration (extension: mot).
- Update image: An image file containing the firmware update (extension: rsu).
Generate initial image (Linear mode)
图像
Generate initial image (Dual-bank mode)
图像
Generate update image
图像
Firmware Updating Communications module
The firmware updating communications module is middleware which controls communications between MCUs in which the secondary MCU receives firmware for use in updating from the primary MCU and applies the firmware to updating in a system of the kind shown below, consisting of the primary MCU and the secondary MCU.
Users can easily update the firmware of the secondary MCU by embedding this module into the primary and secondary MCUs.
Software configuration of primary MCU-secondary MCU system (RX MCU) using this module
Related Documents
| Title | Issue date |
|---|---|
| Firmware Updates for Renesas MCU (PDF | English, 日本語) | Apr. 2026 |
支持
支持社区
- RX72M R5F572MDDxFP full update method 升级问题
帮忙看下为什么bootloader 跳转进入不了leddemo 程序中： bootloader section: leddemo section:
2024年8月22日 - RX72M 2MB Firmware 升级
官网提供的demo code RX72M是4MB, 帮忙确认下有没有Flash 2MB demo code 用于Firmware 升级
2024年6月4日 - 有RX26T系列芯片使用mcuboot的例程？
R5F526T系列芯片使用bootlaoder和OTA的例程？
2024年11月26日
知识库
- 智能配置器(Smart Configurator) FAQ汇总
... 率/波特率） 如何通过智能配置器 (Smart Configurator) 进行CAN/LIN/Ethernet通信Firmware Integration Technology (FIT) Smart Configurator Freezes When Downloading Components Downloaded FIT Module Not Correctly Displayed in Smart Configurator for RX If I generate code ...
