基于ZYNQ的同步中断动态校准设计  

Dynamic Calibration of Synchronous Interrupt Based on ZYNQ

作　　者：王远 WANG Yuan

机构地区：[1]西安导航技术研究所,西安710068

出　　处：《现代导航》2025年第1期60-63,69,共5页Modern Navigation

摘　　要：在高可靠系统中,多数有效是一种常用的可靠性保证手段,可有效避免单点故障带来的安全性风险。为保证下级设备判决的准确性,系统处理机对下级的输出必须具备较高的同步性,且信号之间不存在绝对依赖。设计了一种基于全可编程片上系统(ZYNQ)的同步中断动态校准方法,系统处理机指令的下发在同步中断触发时进行,可有效保证指令的同步性。经过理论仿真及实际测试,在晶振精度≥50 ppm时,最终输出的毫秒级中断可实现百纳秒级的同步精度。In high reliability system,majority arbitration is a common means which can avoid the risk caused by single error.In order to ensure the accuracy of the judgment of the actuating equipment,the output of the processors must have ample synchronization.Meanwhile,there is no absolute dependence between the signals.A dynamic calibration method of de master-slave synchronization interrupt based on Zynq-7000 All Programmable SoC is designed.The processor’s instruction is issued when the trigger by synchronization interrupt,which can ensure the synchronization of next step.Through simulation and test,when the crystal oscillator accuracy≥50 ppm,the final millisecond interrupt can achieve sub microsecond synchronization accuracy.

关 键 词：同步中断 动态校准 全可编程片上系统 

分 类 号：TP391.8[自动化与计算机技术—计算机应用技术]