摘要
针对已安装完成的车身ECU程序升级困难的问题,基于CAN总线的自定义协议,设计了一种ECU在线升级方案,并在Infineon XC2000系列单片机上具体实现。详细介绍了在线升级系统的软硬件组成、单片机Bootloader的设计方案,以及系统的工作过程。实验结果表明,该系统能够很好地完成ECU在线升级功能,并能有效解决ECU在线升级过程中的一些问题。
Focusing on the problem of installed Body ECU program updating, a design of ECU program updating based on self-defined CAN protocol is realized on Infineon XC2000 series MCU. Then the hardware and software composition of program updating system, approach of MCU Bootloader, and working process of the system are introduce. The experimental results show that the system can achieve the function of program updating online and effectively solve some problems in the process of ECU online updating.
出处
《单片机与嵌入式系统应用》
2014年第1期24-27,共4页
Microcontrollers & Embedded Systems
