异构双核处理器在多路模拟采集系统中的应用  

Application of Heterogeneous Dual-core Processors in Multi-channel Analog Acquisition Systems

作　　者：李安福 Li Anfu(Xi'an Railway Signal Co.,Ltd.,Xi'an 710100,China)

机构地区：[1]西安铁路信号有限责任公司,西安710100

出　　处：《铁路通信信号工程技术》2023年第4期26-32,39,共8页Railway Signalling & Communication Engineering

摘　　要：介绍真有效值的概念和计算原理,阐述如何用软件算法来计算真有效值。描述一种基于异构双核处理器F28M35的32路模拟信号真有效值的采集系统;其C28核专注于做数据采集和真有效值算法处理,M3核专注于做人机交互、通讯等任务。两个核独立运行,核之间通过IPC交换信息,互不干扰,各自发挥所长。详细介绍该系统中的硬件电路、参数设定、软件各模块的功能、软硬件如何协同工作以及核之间IPC通信机制,使采集系统的设计更加完整。此设计极大地降低系统成本,提高技术水平,并具有较好的适应性。This paper introduces the concept and calculation principle of True Root Mean Square(TRMS),and expounds on how to use software algorithm to calculate TRMS.In this paper,a 32-channel analog signal TRMS acquisition system is described in detail,which is based on F28M35,a heterogeneous dual-core processor.Its C28 core focuses on data acquisition and TRMS algorithm processing,and its M3 core focuses on human-computer interaction,communication and other tasks.The two cores run independently,exchanging information through IPC without interfering with each other,and each has its own advantages.In addition,the paper introduces the hardware circuits,parameter settings,the functions of each software module,how the software and hardware work together,and the IPC communication mechanism between the cores,thus providing a more detailed description of the design of the acquisition system.This design leads to much lower system costs,higher technical level and better adaptability.

关 键 词：异构双核 真有效值 F28M35 

分 类 号：TP212[自动化与计算机技术—检测技术与自动化装置]