FPGA通过ESP8266 WiFi模块实现与电脑的无线通信 代码

下面是一个FPGA通过ESP8266 WiFi模块实现与电脑的无线通信的代码示例：

module WiFi_UART(
    input clk,
    input rst,
    input [7:0] data_in,
    output [7:0] data_out,
    output tx,
    input rx
);

reg [7:0] wifi_rx_data;
reg [7:0] wifi_tx_data;
reg [1:0] wifi_state;

parameter IDLE = 2'b00;
parameter RX   = 2'b01;
parameter TX   = 2'b10;

assign data_out = wifi_rx_data;
assign tx = wifi_state == TX ? 1 : 0;

always @(posedge clk) begin
    if (rst) begin
        wifi_rx_data <= 8'h00;
        wifi_tx_data <= 8'h00;
        wifi_state <= IDLE;
    end else begin
        case (wifi_state)
            IDLE: begin
                if (rx == 0) begin
                    wifi_state <= RX;
                end else if (wifi_tx_data != 8'h00) begin
                    wifi_state <= TX;
                end
            end

            RX: begin
                wifi_rx_data <= wifi_rx_data << 1 | rx;
                if ($time % 104 == 0) begin // 9600 bps
                    if (wifi_rx_data == 8'h0D) begin
                        wifi_rx_data <= 8'h00;
                        wifi_state <= IDLE;
                    end
                end
            end

            TX: begin
                if ($time % 104 == 0) begin // 9600 bps
                    if (wifi_tx_data != 8'h00) begin
                        wifi_tx_data <= wifi_tx_data >> 1;
                    end else begin
                        wifi_state <= IDLE;
                    end
                end
            end
        endcase
    end
end

always @(posedge clk) begin
    if (rst) begin
        wifi_rx_data <= 8'h00;
        wifi_tx_data <= 8'h00;
        wifi_state <= IDLE;
    end else if (wifi_state == IDLE && wifi_tx_data != 8'h00) begin
        wifi_tx_data <= wifi_tx_data << 1;
    end
end

initial begin
    wifi_rx_data <= 8'h00;
    wifi_tx_data <= 8'h00;
    wifi_state <= IDLE;
end

endmodule

这个代码示例使用ESP8266模块来实现WiFi通信，并且使用Verilog语言编写。具体实现细节可能因为硬件平台和使用的ESP8266模块型号而略有不同，需要根据具体情况进行调整。