一种基于CAN通信的多节点DSP串行加载方法

A Serial Loading Method For Multi-node DSP Based on CAN Communication

早期DSP软件串行加载方法主要基于SCI串行通信协议,且一次串行加载只能烧写一套软件到一个DSP中。若一个产品具有多个DSP,且各个DSP内的代码大部分相同,那么采用传统串行加载方法将导致软件烧写效率低下。笔者提出的串行加载方法能够针对不同的DSP在线修改代码,将其烧入对应的DSP,且基于应用更普遍的CAN总线通信协议。这种串行加载方法能够实现多节点DSP软件一键烧写,烧写时间短、执行效率高。

The early serial loading method of DSP software is mainly based on SCI serial communication protocol, and only one set of software can be burned to one DSP at a time of serial loading. If a product has more than one DSP, and most of the codes in each DSP are the same, the traditional serial loading method will lead to inefficient software burning and writing. The serial loading method proposed by the author can modify the code online for different DSPs and burn it into the corresponding DSP, and is based on the CAN bus communication protocol which is more widely used. This serial loading method can realize one-click burning of multi-node DSP software with short writing time and high execution efficiency.