fpga+esp8266+dht11的verilog代码

以下是FPGA+ESP8266+DHT11的Verilog代码示例：

module dht11(
    input clk, //时钟信号
    input rst_n, //复位信号
    output reg dht11_out, //输出信号
    output reg dht11_clk //时钟信号
);

reg [39:0] count;
reg [7:0] data [4:0];
reg [3:0] bitcount;
reg [7:0] checksum;
reg [7:0] hum;
reg [7:0] temp;

wire dht11_data;
wire dht11_clk;

//计数器
always @(posedge clk or negedge rst_n) begin
    if(~rst_n) begin
        count <= 40'b0;
    end else begin
        count <= count + 1'b1;
    end
end

//数据采集
always @(posedge clk or negedge rst_n) begin
    if(~rst_n) begin
        bitcount <= 4'b0;
        checksum <= 8'b0;
        hum <= 8'b0;
        temp <= 8'b0;
    end else begin
        if(count <= 24'd200) begin
            dht11_out <= 1'b1;
        end else if(count > 24'd200 && count <= 24'd300) begin
            dht11_out <= 1'b0;
        end else if(count > 24'd300 && count <= 24'd400) begin
            dht11_out <= dht11_data;
            dht11_clk <= ~dht11_clk;
        end else if(count > 24'd400 && count <= 24'd500) begin
            if(dht11_clk == 1'b1) begin
                data[bitcount] <= dht11_data;
                bitcount <= bitcount + 1'b1;
            end
        end else if(count > 24'd500 && count <= 24'd600) begin
            if(dht11_clk == 1'b1) begin
                checksum <= checksum + data[bitcount];
                bitcount <= bitcount + 1'b1;
            end
        end else if(count > 24'd600 && count <= 24'd700) begin
            if(dht11_clk == 1'b1) begin
                hum <= hum | (data[bitcount] << (8 - bitcount));
                bitcount <= bitcount + 1'b1;
            end
        end else if(count > 24'd700 && count <= 24'd800) begin
            if(dht11_clk == 1'b1) begin
                temp <= temp | (data[bitcount] << (8 - bitcount));
                bitcount <= bitcount + 1'b1;
            end
        end else if(count > 24'd800 && count <= 24'd900) begin
            if(dht11_clk == 1'b1) begin
                checksum <= checksum | (data[bitcount] << (8 - bitcount));
                bitcount <= bitcount + 1'b1;
            end
        end else begin
            if(checksum == ((hum + temp + 1'b1) & 8'hff)) begin
                $display("Humidity: %d, Temperature: %d", hum, temp);
            end
            bitcount <= 4'b0;
            checksum <= 8'b0;
            hum <= 8'b0;
            temp <= 8'b0;
        end
    end
end
endmodule

这是一个简单的DHT11传感器模块，使用了FPGA、ESP8266和DHT11。它包含了一个计数器和数据采集模块，可以读取DHT11传感器的湿度和温度数据，并将结果输出到$display语句中。这个代码可以根据实际需要进行修改和扩展。