一种复杂系统的SPI通信协议设计  

Design of SPI Communication Protocol for Complex Systems

作　　者：骞恒源 李仑升 张浩 Qian Hengyuan;Li Lunsheng;Zhang Hao(Aeronautics Computing Technology Research Institute,AVIC,Xi’an Shaanxi 710076,China)

机构地区：[1]中国航空工业集团公司西安航空计算技术研究所,陕西西安710065

出　　处：《山西电子技术》2023年第2期60-62,共3页Shanxi Electronic Technology

摘　　要：某复杂系统使用SPI总线完成主处理器与从处理器之间的数据通信功能,然而因其通信协议设计的不合理,导致主从处理器使用SPI总线进行数据交互占用了大量的任务时间,导致程序在周期任务执行过程中出现了超时情况。基于上述问题,设计出一种新的SPI通信协议,简化数据交互方式、提升数据交互能力、节约数据交互时间,且已经过系统测试和验证。A complex system uses the SPI bus to complete the data communication function between the master processor and the slave processor.However,due to the unreasonable design of the communication protocol,the master and slave processors use the SPI bus for data interaction to take up a lot of task time that resulting in the program times out during the execution of the periodic task.Based on the above problems,this paper designs a new SPI communication protocol,which simplifies the data interaction method,improves the data interaction ability,and saves the data interaction time.It has been tested and verified by the system.

关 键 词：SPI总线 通信协议 数据交互 处理器 

分 类 号：TN929.5[电子电信—通信与信息系统]