这是一个用VHDL语言编写的较全面的出租车计费系统，可以实现计费，显示时间，所走路程以及停车时间的显示，算法相对复杂，但可移植性很强，占用逻辑资源相对较少-This is a VHDL language with a more comprehensive taxi billing system, can achieve billing, display time, the walking distance and the stopping time display, the algorithm

停车控制系统代码，实现启动触发控制，伺服马达定位控制。-Parking control system code and achieve start trigger control, servo motor positioning control.

数字系统课程设计-自助停车缴费系统，该程序模拟汽车入库出库，进行计时和计费。-Digital System Design Course- Self-parking payment system, the program simulates a car storage library for timing and billing