写一个简单的fpga空调控制源代码和仿真程序

以下是一个简单的FPGA空调控制源代码和仿真程序，实现了温度控制和风速控制功能。

FPGA空调控制源代码：

module air_conditioner_controller(
    input clk,
    input rst,
    input [7:0] temperature,
    input [1:0] mode,
    input [1:0] fan_speed,
    input [1:0] power_button,
    output reg [1:0] compressor,
    output reg [1:0] fan
);

// 状态定义
parameter OFF = 2'b00;
parameter ON = 2'b01;
parameter COOL = 2'b10;
parameter HEAT = 2'b11;

// 内部状态变量
reg [1:0] state;
reg [1:0] next_state;

// 内部控制变量
reg [1:0] compressor_control;
reg [1:0] fan_control;

// 内部参数变量
reg [7:0] set_temperature;
reg [1:0] set_mode;
reg [1:0] set_fan_speed;

// 状态机过程
always@(posedge clk or posedge rst) begin
    if(rst) begin
        state <= OFF;
        compressor_control <= 0;
        fan_control <= 0;
        set_temperature <= 25;
        set_mode <= 0;
        set_fan_speed <= 0;
    end
    else begin
        state <= next_state;
        compressor <= compressor_control;
        fan <= fan_control;
    end
end

// 状态机逻辑
always@(*) begin
    case(state)
        OFF: begin
            compressor_control <= 0;
            fan_control <= 0;
            if(power_button == 2'b01) begin
                next_state = ON;
            end else begin
                next_state = OFF;
            end
        end
        ON: begin
            set_temperature <= temperature;
            set_mode <= mode;
            set_fan_speed <= fan_speed;
            if(power_button == 2'b00) begin
                next_state = OFF;
            end else if(set_mode == 2'b00) begin
                next_state = ON;
            end else if(set_mode == 2'b01) begin
                next_state = COOL;
            end else if(set_mode == 2'b10) begin
                next_state = HEAT;
            end else if(set_mode == 2'b11) begin
                next_state = ON;
            end
        end
        COOL: begin
            compressor_control <= 2'b10;
            fan_control <= set_fan_speed;
            if(temperature <= set_temperature - 2) begin
                next_state = COOL;
            end else if(temperature >= set_temperature) begin
                next_state = ON;
            end
        end
        HEAT: begin
            compressor_control <= 2'b01;
            fan_control <= set_fan_speed;
            if(temperature >= set_temperature + 2) begin
                next_state = HEAT;
            end else if(temperature <= set_temperature) begin
                next_state = ON;
            end
        end
        default: next_state = OFF;
    endcase
end

endmodule

仿真程序：

`timescale 1ns/1ps

module air_conditioner_controller_tb();

// 输入信号
reg clk;
reg rst;
reg [7:0] temperature;
reg [1:0] mode;
reg [1:0] fan_speed;
reg [1:0] power_button;

// 输出信号
wire [1:0] compressor;
wire [1:0] fan;

// 实例化DUT
air_conditioner_controller dut(
    .clk(clk),
    .rst(rst),
    .temperature(temperature),
    .mode(mode),
    .fan_speed(fan_speed),
    .power_button(power_button),
    .compressor(compressor),
    .fan(fan)
);

// 时钟信号
always begin
    clk = 0;
    #5ns;
    clk = 1;
    #5ns;
end

// 初始化信号
initial begin
    rst = 1;
    temperature = 25;
    mode = 2'b01;
    fan_speed = 2'b01;
    power_button = 2'b00;
    #10ns;
    rst = 0;
    #10ns;
    power_button = 2'b01;
    #10ns;
    mode = 2'b00;
    #10ns;
    power_button = 2'b00;
    #500ns;
    temperature = 20;
    #500ns;
    temperature = 30;
    #500ns;
    fan_speed = 2'b10;
    #500ns;
    fan_speed = 2'b01;
    #500ns;
    mode = 2'b10;
    #500ns;
    mode = 2'b01;
    #500ns;
    power_button = 2'b01;
    #500ns;
    power_button = 2'b00;
    #500ns;
    $finish;
end

endmodule

这个仿真程序通过模拟输入信号（温度、模式、风速、开关按钮等）来测试空调控制器的输出信号（压缩机、风扇的工作状态）。具体实现中，需要根据具体的硬件环境和需求进行调整和优化。