介绍了利用VHDL硬件描述语言结合FPGA可编程器件进行数字钟的设计，并通过数码管驱动电路动态显示计时结果。

The paper introduces the design of digital clock based on FPGA and VHDL, the time of clock can be displayed with the digital driving circuit.

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本文介绍了多功能数字钟的系统设计。

In this paper, multi-function digital clock system design.

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介绍了用8031单片机控制的电脑数字钟的硬件结构与软件设计，给出了汇编语言源程序。

This paper introduces hardware constitution and software design of digital clock controlled by 8031 single-chip microcomputer, and its assembly language program is given.

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