基于VHDL的可逆计数器的设计与实现

Design and Realization of the Reversible Counter Based on VHDL

计数器作为一种数据采集设备,是各领域测量系统的重要组成部分,它在时钟、定时器、分频电路、状态机等应用中都有应用。针对传统计数器功能单一,电路复杂、调试困难,设备升级、维护成本高的缺点,研究开发了一种基于VHDL的同步二进制可逆计数器,可实现可逆计数,并且可以灵活的调整计数器的位数;并通过实验测试验证了该设计的可行性及准确性,也为使用VHDL设计其他的器件提供了参考和依据。

As a kind of data acquisition equipment, counter is an important part of the measurement system in every field. It is used in the clock, timer, frequency division circuit, state machine and other applications. Aimed at the shortcomings of traditional counter, such as the single function, complex circuit, difficult debugging, high cost of the equipment upgrades and maintenance, a kind of binary reversible synchronous counter based on VHDL is developeded. It can realize reversible counting and can flexibly adjust the counter digits. The feasibility and accuracy of the design is verified by the experimental tests. It also provides the reference and basis for the design of other device by using VHDL.