基于 FPGA的交通灯设计
-II-
Abstract
Traffic light controller plays a very important role in the regulation of
urban traffic. The traditional traffic light controller is based on single-chip
microcomputer or PLC. This paper introduces a scheme based on FPGA
technology and II Quartus development platform to realize the intersection
traffic light controller. Using VHDL hardware description language
description of the module program, and in the II Quartus environment to
compile, simulate, generate the top level files downloaded in the FPGA
device EPF10K10LC84 FLEX for verification. The verification results
show that the basic design to achieve the control of traffic light controller,
including the countdown time display function and main function, the
special state control, a road of red, yellow, and green light display function
alternately, indicating that the design scheme is correct. In this paper, the
design process of the traffic light controller, and briefly introduces the
hardware description bright prospect in the digital system design of VHDL
language structure model and process design, VHDL design advantages
and the language and an important position.
EDA tools for electronic design personnel is extremely important, it can in
each stage of electronic design, the level of computer simulation and
verification, to ensure the design accuracy and can shorten the design
cycle and reduce design cost. Can realize the automatic control of traffic
lights crossroads traffic lights. Based on the FPGA design of traffic lights
system has high reliability, real-time flash, high operation speed, the
failure rate is low, the circuit is simple, and the volume is small. This
design uses Altera cycloneii series ep2c5t144 chip as the core of the
minimum system, it can easily embed into the actual traffic lights
application system, can realize the function of the simple logic control,
data acquisition, signal processing and mathematical computing; using
QuartusII software as a development platform; using top-down design
Keywords : automatic, logic, traffic lights, EDA, FPGA
