基于UDS on CAN的Bootloader设计  

Design of Bootloader Based on UDS on CAN

作　　者：马建辉 于良杰[1,2,3] 王勇 李研强[1,2,3] 车晓波 Ma Jianhui;Yu Liangjie;Wang Yong;Li Yanqiang;Che Xiaobo(Shandong Academy of Sciences),Jinan 250353,China;Automatic Institute of Shandong Academy;Shandong Provincial Key Laboratory of Automotive Electronics Technology)

机构地区：[1]齐鲁工业大学(山东省科学院),济南250353 [2]山东省科学院自动化研究所 [3]山东省汽车电子技术重点实验室

出　　处：《单片机与嵌入式系统应用》2019年第3期7-9,共3页Microcontrollers & Embedded Systems

基　　金：山东省重点研发计划"新能源车辆远程监控系统关键技术研究"(2017GGX90101)

摘　　要：基于UDS协议设计了一种Bootloader,基于CAN节点MCU生成Flash驱动程序的指令数据,在软件升级过程中实时下载到MCU的RAM空间,保证Flash地址空间不存储Flash驱动程序,从而避免了程序数据被Flash驱动程序误擦除的隐患,并研究了多帧通信过程及其STmin和BS设置对软件升级时间的影响。Based on the UDS protocol,a Bootloader is designed.The instruction data of the Flash driver is generated based on the CAN node MCU.It is downloaded to the RAM space of the MCU in real time during the software upgrade process to ensure that the Flash driver is not stored in the Flash address space,thus avoiding the program data being erased by the Flash driver,and the effect of STmin and BS settings on multi-frame communication on software upgrade time are studied.

关 键 词：CAN节点 UDS协议 BOOTLOADER 软件升级 多帧通信 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]