Description: introduced FPGA-based multifunctional taxi meter circuit design. The design using programmable logic device FPGA ASIC design, and for the super-high-speed VHDL hardware description language in the company Xilinx Spartan II Series 2 sc 200PQ208-5 chip programming of the control system as a whole, Automatic control the entire system from four modules : a seconds-frequency module, control module, metrology modules and decoding module. The design not only achieved a taxi showed Billing functions, Multifunctional its performance through its keypad revealed taxi taking the cumulative total journey of the passengers took the set time. Program, log, billing is accurate, reliable and practical application of them have good practical value and the higher the possibility.
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