| 基于FPGA的高精度同步时钟系统设计 |
| |
| 引用本文： | 谌普江,龚光华.基于FPGA的高精度同步时钟系统设计[J].单片机与嵌入式系统应用,2013(11):7-10. |
| |
| 作者姓名： | 谌普江 龚光华 |
| |
| 作者单位： | [1]清华大学工程物理系,北京100084 [2]清华大学粒子技术与辐射成像教育部重点实验室 ,北京100084 [3]清华大学飞思卡尔培训中心,北京100084 |
| |
| 基金项目： | 国家自然科学基金（No.11005065）. |
| |
| 摘 要： | 介绍了精密时钟同步协议（PTP）的原理。本文精简了该协议，设计并实现了一种低成本、高精度的时钟同步系统方案。该方案中，本地时钟单元、时钟协议模块、发送缓冲、接收缓冲以及系统打时标等功能都在FPGA中实现。经过测试，该方案能够实现ns级同步精度。该方案成本低，并且易于扩展，非常适合局域网络时钟同步的应用领域。
|
| 关 键 词： | FPGA VHDL PTP 时钟同步 |
High Precision Synchronization System Based on FPGA |
| |
| Chen Pujiang,Gong Guanghua.High Precision Synchronization System Based on FPGA[J].Microcontrollers & Embedded Systems,2013(11):7-10. |
| |
| Authors: | Chen Pujiang Gong Guanghua |
| |
| Affiliation: | 1 Department of Engineering Physics, Tsinghua University, Beijing 100084, China; 2. Key Laboratory of Particle Radiation Imaging, Ministry o{ Education, Tsinghua University; 3. Tsinghua Freescale Training Center) |
| |
| Abstract: | This paper introduces the basic theory of Precision Time Protocol（PTP）. A low-cost and high-precision time synchronization system is designed and implemented based on PTP. All the modules in the design, including local time module, time protocol module, sending buffer module, receiving buffer module and timestamp module, are implemented in FPGA. This design can achieve nanosecond synchronization accuracy. Besides, this low cost solution is easy to extend, thus suitable for applications in local network clock synchro- nization areas. |
| |
| Keywords: | FPGA VHDL PTP time synchronization |
| 本文献已被 维普 等数据库收录！ |
|
