基于CAN总线的多DSP智能节点软件在线升级方法  

An Online Software Upgrading Method Based on CAN Bus for Multi-DSPs

作　　者：魏鹤怡 杜彬 李亚 程树明 WEI Heyi;DU bin;LI Ya;CHENG Shuming(Xi’an Institute of precision machinery,Xi’an 710077,China)

机构地区：[1]西安精密机械研究所,西安710077

出　　处：《自动化与仪器仪表》2022年第2期11-13,17,共4页Automation & Instrumentation

摘　　要：为了减少因为软件升级产品拆装造成的时间及人工消耗,采用了一种基于CAN总线的多DSP智能节点软件在线升级方法,该方法是基于Bootloader引导系统的CAN总线软件在线升级方法,通过多节点自主匹配识别技术,实现了通过一条CAN总线对多个DSP的自动选择识别和软件烧写;同时,实现了分包交互的软件升级模式,突破原有方式对软件规模的限制。通过在某产品控制系统上对多组件进行软件在线升级,已充分验证了该方法的可行性。该方法具有扩展性强,操作方法简单,安全稳定性高等优点。For reducing the workload and time consumption in software upgrade process by tearing open outfit products, a online software upgrading method is used based on CAN Network for multi-DSPs. This method is an online software upgrade method of CAN bus based on bootloader guide system. multi-DSPs automatic identification and software burning is realized by a CAN bus through the multiple node independent matching mode. Meanwhile, software upgrading mode of sub package and interactive is realized. It breaks the limitation of the original upgrading way of the software scale. It has some advantages of strongly extensibility, simply operation, high safety and stability.

关 键 词：CAN总线 BOOTLOADER 多DSP 在线升级 

分 类 号：TP29[自动化与计算机技术—检测技术与自动化装置]