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FPGA作为一种可编程逻辑器件,相较于单片机,其拥有庞大的逻辑门阵列。随着大数据、人工智能以及物联网的迅速发展,FPGA将拥有更广阔的市场应用前景。本文基于Xilinx Spartan-6 FPGA设计了一款具有网络同步功能的智能数字时钟。该时钟通过Wifi自动连接全球高精度授时系统,得到标准时间,从而克服了一般数字时钟在系统长时间运行情况下的时钟误差问题。在无法采用高精度振荡源的数字时钟上,该设计可以有效提高时间的可靠度。
FPGA as a kind of programmable logic device, compared with the microcontroller, it has a huge array of logic gates. With the rapid development of big data, artificial intelligence and the Internet of Things, FPGA will have a broader market prospect. This article is based on the Xilinx Spartan-6 FPGA to design an intelligent digital clock with network synchronization. The clock is automatically connected to the global high-precision timing system via Wifi to obtain standard time, thereby overcoming the clock error problem of the general digital clock when the system is in operation for a long time. The design can effectively improve the reliability of the time on a digital clock that can not be used with a high-precision oscillation source.