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嵌入式CPU的RTC实现时间戳标定的误差分析及改进 被引量:1

Error analysis and improvement of timestamp calibration in RTC based on embedded CPU
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摘要 RTC时钟为嵌入式CPU系统提供了实时时间信息,在智能终端设备中通常被用来记录外部随机事件发生的时间。本文对此时间戳标定过程中存在的误差进行分析,并给出了基于FPGA代替RTC实现高精度时间戳标定的改进方案。 RTC clock provides real-time information for embedded CPU system, which is usually used to record the time of external random events in intelligent terminal equipment. In this paper, the error in the process of timestamp calibration is analyzed, and an improved scheme of high-precision timestamp calibration based on FPGA instead of RTC is given.
作者 曹海锋 Cao Haifeng(Shanxi Engineering Vocational College,Taiyuan,Shanxi 030032,China)
出处 《计算机时代》 2023年第3期124-128,132,共6页 Computer Era
基金 山西省教育科学“十三五”规划2020年度“互联网+教育”研究专项课题“基于计算机专业在线课程开展混合式教学的实践研究”(HLW-20183)。
关键词 嵌入式CPU RTC时钟 FPGA时间戳 时间同步 embedded CPU RTC clock FPGA timestamp time synchronization
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