verilog汽车尾灯

根据提供的引用内容，下面是一个Verilog实现汽车尾灯的例子：

module CarTailLights(
    input wire clk,
    input wire reset,
    input wire brake,
    input wire left_turn,
    input wire right_turn,
    output wire [2:0] left_lights,
    output wire [2:0] right_lights
);

reg [3:0] state;

always @(posedge clk or posedge reset) begin
    if (reset) begin
        state <= 4'b0000;
    end else begin
        case (state)
            4'b0000: begin // IDLE state
                if (brake) begin
                    state <= 4'b1111; // LR3 state
                end else if (left_turn) begin
                    state <= 4'b0001; // L1 state
                end else if (right_turn) begin
                    state <= 4'b1000; // R1 state
                end
            end
            4'b0001: begin // L1 state
                state <= 4'b0010; // L2 state
            end
            4'b0010: begin // L2 state
                state <= 4'b0100; // L3 state
            end
            4'b0100: begin // L3 state
                state <= 4'b0001; // L1 state
            end
            4'b1000: begin // R1 state
                state <= 4'b0100; // R2 state
            end
            4'b0100: begin // R2 state
                state <= 4'b0010; // R3 state
            end
            4'b0010: begin // R3 state
                state <= 4'b1000; // R1 state
            end
            4'b1111: begin // LR3 state
                if (!brake) begin
                    state <= 4'b0000; // IDLE state
                end
            end
        endcase
    end
end

assign left_lights = (state == 4'b0001 || state == 4'b0010 || state == 4'b0100) ? 3'b111 : 3'b000;
assign right_lights = (state == 4'b1000 || state == 4'b0100 || state == 4'b0010) ? 3'b111 : 3'b000;

endmodule

这个Verilog模块实现了一个汽车尾灯的状态机。根据输入的刹车、左转弯和右转弯信号，它会控制左侧和右侧的灯的亮灭。根据状态机的状态，左侧和右侧的灯会按照规定的亮灭规律进行变化。