一种PowerPC系统毫秒级精度RTC时钟设计方法  

A Millisecond Precision RTC Clock Design Method for PowerPC System

作　　者：强凯 孙靖国[1] 颜丰琳 QIANG Kai;SUN Jing-guo;YAN Feng-lin(Xi′an Aeronautics Computing Technique Research Institute,AVIC,Xi′an 710068,China)

机构地区：[1]航空工业西安航空计算技术研究所,陕西西安710068

出　　处：《航空计算技术》2020年第2期103-105,共3页Aeronautical Computing Technique

基　　金：装备预研联合基金项目资助(6141B05060402)。

摘　　要：随着嵌入式系统技术迅速发展,PowerPC处理器以其实时性好、运算能力强和接口丰富等特点被广泛应用于嵌入式设计中。RTC时钟功能通常嵌入基于PowerPC处理器的系统当中,实现如系统同步以及记录校准等功能,精度一般为秒级。提出了一种基于PowerPC处理器的嵌入式系统毫秒级精度RTC时钟设计方法,通过PowerPC内部Time Base寄存器计数及计算得到毫秒级精度RTC时钟,可以满足越来越多对RTC有更高精度要求的系统设计。With the rapid development of embedded system technology,PowerPC processor is widely used in embedded design due to its more real-time performance,computing power and interface.RTC clock function is usually embedded in the PowerPC system for functions such as system synchronization and recording calibration.The accuracy of RTC clock is generally second.This paper presents a PowerPC processor-based embedded system millisecond-level precision RTC clock design method,obtaining millisecond-level precision RTC clock through PowerPC internal Time Base register count and calculation which can meet more and more system designs with higher precision requirements for RTC.

关 键 词：嵌入式系统 POWERPC RTC 毫秒级精度 

分 类 号：TP316.2[自动化与计算机技术—计算机软件与理论]