`timescale 1ns / 1ps // 三通道图像合成一个RGB图像 module WhiteBalance #( parameter reg [4:0] IN_DEPTH = 12, // 输入图像的色深 parameter reg [4:0] OUT_DEPTH = 8, // 输出图像的色深 parameter reg [8:0] BUFF_SIZE = 32 ) ( input wire clk, input wire reset, input wire in_en, input wire [15:0] in_data[3], // 0:R 1:G 2:B output wire out_ready, output wire out_receive, // 输出相关 input wire in_ready, input wire in_receive, output reg out_en, output reg [OUT_DEPTH - 1:0] out_data[3] ); localparam reg [2:0] READ_DATA = 0; localparam reg [2:0] CALC_DATA = 1; localparam reg [2:0] SATI_DATA = 2; localparam reg [2:0] SEND_DATA = 3; reg [2:0] state, nextState; reg [BUFF_SIZE - 1:0] data_cal[3]; // 用于保存运算结果,防止溢出 always @(posedge clk or posedge reset) begin if (reset) begin state <= READ_DATA; end else begin state <= nextState; end end always @(*) begin case (state) READ_DATA: nextState = (in_en) ? CALC_DATA : READ_DATA; CALC_DATA: nextState = SATI_DATA; SATI_DATA: nextState = SEND_DATA; SEND_DATA: nextState = (in_receive) ? READ_DATA : SEND_DATA; default: nextState = READ_DATA; endcase end assign out_ready = (!in_en && state == READ_DATA) ? 1 : 0; assign out_receive = (in_en && state == READ_DATA) ? 1 : 0; always @(posedge clk or posedge reset) begin if (reset) begin // 初始化 data_cal[0] <= 0; data_cal[1] <= 0; data_cal[2] <= 0; out_data[0] <= 0; out_data[1] <= 0; out_data[2] <= 0; out_en <= 0; end else begin case (state) READ_DATA: begin if (in_en) begin end end CALC_DATA: begin if (enable) begin end end SATI_DATA: begin end SEND_DATA: begin if (in_ready && !in_receive) begin out_en <= 1; end else out_en <= 0; end default: ; endcase end end endmodule