基于CAN总线的TMS320F28335远程在线升级方法设计  

Design of TMS320F28335 Remote Online Upgrade Method Based on CAN Bus

作　　者：倪庆生 倪云龙 潘晓阳 袁盛俊 NI Qingsheng;NI Yunlong;PAN Xiaoyang;YUAN Shengjun(China Key System&Integrated Circuit Co.,Ltd.,Wuxi 214072,China)

机构地区：[1]中科芯集成电路有限公司,江苏无锡214072

出　　处：《电子与封装》2021年第11期31-35,共5页Electronics & Packaging

摘　　要：针对TMS320F28335仿真器现场程序升级困难的现象,提出了基于CAN (Controller Area Network)总线的远程在线升级方法,并详细介绍了该方法的基本原理。在不破坏各节点间通信的基础上,该方法实现了对CAN网络中任意节点在线升级的功能。通过分别控制网络中节点数、CAN总线长、目标节点优先级和网络负载率进行了大量试验,试验结果验证了该方法的可靠与稳定性。Aiming at the problem that TMS320F28335 is difficult to be upgraded by emulator in the field, a remote online upgrade method based on controller area network(CAN) bus is proposed, and the basic principle of the method is introduced in detail. On the basis of not destroying the communication between nodes, this method realizes the function of online upgrade to any node in the CAN network. A large number of experiments are carried out by separately controlling the number of nodes in the network, the length of the CAN bus, the priority of the target node and the network load rate. The experimental results verify the reliability and stability of the method.

关 键 词：TMS320F28335 远程在线升级 CAN总线 任意节点 

分 类 号：TP311.1[自动化与计算机技术—计算机软件与理论]