基于VHDL的出租车计费器，通过VHDL语言来编程实现计费系统的四个功能块：分频模块，控制模块，计量模块和译码显示模块，最后使用MAX+PLUSII软件来对程序进行仿真，以模拟实现出租车的启动，停止以及等待等过程中的计时，计程和计费功能。-Taxi meter based on VHDL, VHDL language programming through the billing system of the four functional blocks: frequency module, control module, measuring module and decoding the display module, and finally use the MAX+ PLUSII software to simulate the program to simulate the realization of a taxi start, stop and wait for the timing of such processes, the meter and billing functions.