基于vhdl语言的汽车尾灯控制器（Automobile taillight controller based on VHDL language）.docVIP

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基于vhdl语言的汽车尾灯控制器（Automobile taillight controller based on VHDL language）.doc

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基于vhdl语言的汽车尾灯控制器（Automobile taillight controller based on VHDL language）

基于vhdl语言的汽车尾灯控制器（Automobile taillight controller based on VHDL language） Design of taillight controller for car I. The purpose of curriculum design: 1, we can fully consolidate and apply the basic theory and methods in the course of digital logic, and master the basic methods of small digital system design; 2, master the method of compiling small modules in VHDL language, and adopt hierarchical design; 3 、 cultivate the ability of circuit design and understand the effective combination of theoretical design and physical realization. Two design requirements: Each of the 4 lights on the left and right of the rear of the car achieves the following four states: A: normal operation, all the lights are out; B: turn left. The 4 lights on the left are lit by the left cycle; C: turn right, and the 4 lights on the right turn up in the right circle; D: when braking, the 8 lights blink with the 1HZ pulse. Three experimental principle and schematic diagram: According to the specific design requirements of the vehicle taillight controller, we can get the corresponding input and output relations in the four states, as shown in the following table: Input status, left rear light, right rear light 00 normal extinction 01 turn right and put out D4-D5-D6-D7 10 turn left and D3-D2-D1-D0 out 11 brake, all lights flashing with the pulse The 2 bit input control signal is decoded to produce 4 possible outputs, corresponding to the 4 states of the taillight. In the normal state, which are about taillights off, no output; right state, start the corresponding counter to the input CLK count, the counter output after decoding control right tail light in D4-D5-D6-D7 direction; left is similar to the right; brake state, through a gate and allowed the CLK to control all the lights flashing. The schematic diagram is as follows: Four specific development process: One, draw circuit diagram 1, creating projects. File new item FPGA project (File New Project FPGA Project). In the project bar, the ne