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Wei Heyi,Du Bin,Li Ya,Cheng Shuming. Online Upgrade Method of Multi-DSP Smart Node Software Based on CAN Bus[J].Automation and Instrumentation,2022,No.268(02):11-13+17.DOI:10.14016/j.cnki.1001-9227.2022.02.011.
Author:Wei Heyi,Du Bin,Li Ya,Cheng Shuming(Xi'an Institute of Precision Machinery)
Abstract: In order to reduce the time and labor consumption caused by the disassembly and disassembly of software upgrade products, a multi-DSP smart node software online upgrade method based on CAN bus is adopted, which is based on the CAN bus software online upgrade method of Bootloader boot system, and realizes the automatic selection recognition and software programming of multiple DSPs through a CAN bus through multi-node autonomous matching identification technology; At the same time, it realizes the software upgrade mode of subcontracting interaction and breaks through the limitation of the software scale of the original way. The feasibility of the method has been fully verified by performing an online software upgrade of multiple components on a product control system. This method has the advantages of strong scalability, simple operation method and high security and stability.
Key words: CAN bus; Bootloader ; Multiple DSPs; Upgrade online
(Source: Automation & Instrumentation Issue 2, 2022)
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