帮我用verilog设计一个I3C master代码

下面是一个简单的I3C主控器Verilog代码示例，您可以将其用作参考：

module i3c_master (
    input clk,
    input rst,
    output reg sda,
    output reg scl
);

parameter I3C_MASTER_ADDR = 7'b0001101;

reg [2:0] state;
reg [7:0] addr;
reg [7:0] data;
wire [7:0] rx_data;

assign sda_out = (state == 3'b010) ? 1'bZ : sda;
assign sda_in = (state == 3'b100);
assign scl_out = (state == 3'b010) || (state == 3'b101);

// 发送I3C START信号
task send_i3c_start;
begin
    state <= 3'b001;
    sda <= 1'b1;
    scl <= 1'b1;
    #10;
    sda <= 1'b0;
    #10;
    scl <= 1'b0;
end
endtask

// 发送I3C STOP信号
task send_i3c_stop;
begin
    state <= 3'b100;
    sda <= 1'b0;
    scl <= 1'b1;
    #10;
    sda <= 1'b1;
    #10;
    scl <= 1'b0;
end
endtask

// 发送I3C总线地址和写入位
task send_i3c_address;
input [6:0] addr;
input write;
begin
    state <= 3'b010;
    sda <= 1'b0;
    scl <= 1'b0;
    #10;
    for (int i = 0; i < 7; i++) begin
        sda <= addr[i];
        #10;
        scl <= 1'b1;
        #10;
        scl <= 1'b0;
    end
    sda <= write;
    #10;
    scl <= 1'b1;
    #10;
    scl <= 1'b0;
end
endtask

// 发送数据
task send_i3c_data;
input [7:0] data;
begin
    state <= 3'b011;
    sda <= 1'b0;
    scl <= 1'b0;
    #10;
    for (int i = 0; i < 8; i++) begin
        sda <= data[i];
        #10;
        scl <= 1'b1;
        #10;
        scl <= 1'b0;
    end
end
endtask

// 读取数据
task read_i3c_data;
begin
    state <= 3'b101;
    sda <= 1'b1;
    scl <= 1'b0;
    #10;
    for (int i = 0; i < 8; i++) begin
        scl <= 1'b1;
        #10;
        rx_data[i] <= sda_in;
        scl <= 1'b0;
        #10;
    end
end
endtask

always @(posedge clk) begin
    if (rst) begin
        state <= 3'b000;
        sda <= 1'b1;
        scl <= 1'b1;
    end else begin
        case (state)
            3'b000: begin // 空闲状态
                // 等待外部信号触发
            end
            3'b001: begin // 发送I3C START信号
                send_i3c_start();
            end
            3'b010: begin // 发送I3C总线地址和写入位
                send_i3c_address(addr, 0);
            end
            3'b011: begin // 发送数据
                send_i3c_data(data);
            end
            3'b100: begin // 发送I3C STOP信号
                send_i3c_stop();
            end
            3'b101: begin // 读取数据
                read_i3c_data();
                state <= 3'b110;
            end
            3'b110: begin // 等待读取完成
                data <= rx_data;
                state <= 3'b000;
            end
        endcase
    end
end

endmodule

请注意，此代码仅用于示例目的，并且实际的I3C主控代码可能需要更多的功能和错误处理。此外，与您使用的硬件和驱动程序相关的代码也可能会有所不同。