cache module

tb/data_cache/tb_data_assemble.v

@@ -0,0 +1,138 @@
+`timescale 1ns/1ps
+
+module tb_data_assemble();
+
+// 参数定义
+parameter PIXEL_WIDTH    = 8;
+parameter GRAY_PIXEL_CNT = 32;
+parameter RGB_PIXEL_CNT  = 8;
+
+// 信号定义
+reg                         clk;
+reg                         rst_n;
+reg                         en;
+reg                         input_pixel_type;
+reg [PIXEL_WIDTH-1:0]       ir_ch0;
+reg [PIXEL_WIDTH-1:0]       ir_ch1;
+reg [PIXEL_WIDTH-1:0]       ir_ch2;
+reg                         pixel_valid;
+wire                        done;
+wire [255:0]                assembled_data;
+
+// 生成时钟（100MHz）
+initial begin
+    clk = 1'b0;
+    forever #5 clk = ~clk;
+end
+
+// 实例化DUT
+data_assemble #(
+    .PIXEL_WIDTH    (PIXEL_WIDTH),
+    .GRAY_PIXEL_CNT (GRAY_PIXEL_CNT),
+    .RGB_PIXEL_CNT  (RGB_PIXEL_CNT)
+) u_data_assemble (
+    .clk             (clk),
+    .rst_n           (rst_n),
+    .en              (en),
+    .input_pixel_type(input_pixel_type),
+    .ir_ch0          (ir_ch0),
+    .ir_ch1          (ir_ch1),
+    .ir_ch2          (ir_ch2),
+    .pixel_valid     (pixel_valid),
+    .done            (done),
+    .assembled_data  (assembled_data)
+);
+
+// 生成FSDB波形
+initial begin
+    $fsdbDumpfile("tb.fsdb");
+    $fsdbDumpvars(0, tb_data_assemble);
+    $fsdbDumpMDA(0, tb_data_assemble);
+end
+
+// 测试场景
+initial begin
+    // 初始化
+    rst_n           = 1'b0;
+    en              = 1'b0;
+    input_pixel_type = 1'b0;
+    ir_ch0          = 8'd0;
+    ir_ch1          = 8'd0;
+    ir_ch2          = 8'd0;
+    pixel_valid     = 1'b0;
+
+    // 释放复位
+    #20;
+    rst_n = 1'b1;
+    #20;
+
+    // -------------------------- 测试1：Gray模式拼接 --------------------------
+    $display("[%0t] Test 1: Gray mode assembly", $time);
+    input_pixel_type = 1'b0;
+    en = 1'b1;
+    #10;
+
+    // 输入32个数据（0x01~0x20）
+    repeat (GRAY_PIXEL_CNT) begin
+        @(posedge clk);
+        pixel_valid = 1'b1;
+        ir_ch0 = ir_ch0 + 8'd1;  // 最后一个数据为0x20
+    end
+    @(posedge clk);
+    pixel_valid = 1'b0;
+
+    wait(done == 1'b1);
+    #10;
+    // 验证首8bit（0x01）和尾8bit（0x20）
+    $display("[%0t] Gray first 8bit: 0x%0h (Expected: 0x1)", 
+             $time, assembled_data[255:248]);
+    $display("[%0t] Gray last 8bit: 0x%0h (Expected: 0x20)", 
+             $time, assembled_data[7:0]);
+    #20;
+
+    // -------------------------- 测试2：RGB模式拼接 --------------------------
+    $display("[%0t] Test 2: RGB mode assembly", $time);
+    input_pixel_type = 1'b1;
+    ir_ch0 = 8'd0;
+    ir_ch1 = 8'd0;
+    ir_ch2 = 8'd0;
+    #10;
+
+    // 输入8组数据：CH0=10*N, CH1=20*N, CH2=30*N（N=1~8）
+    repeat (RGB_PIXEL_CNT) begin
+        @(posedge clk);
+        pixel_valid = 1'b1;
+        ir_ch0 = ir_ch0 + 8'd10;  // 10,20,...,80（0x0a,0x14,...,0x50）
+        ir_ch1 = ir_ch1 + 8'd20;  // 20,40,...,160（0x14,0x28,...,0xa0）
+        ir_ch2 = ir_ch2 + 8'd30;  // 30,60,...,240（0x1e,0x3c,...,0xf0）
+    end
+    @(posedge clk);
+    pixel_valid = 1'b0;
+
+    wait(done == 1'b1);
+    #10;
+    // 验证首32bit（{8'd0,30,20,10}=0x00_1e_14_0a）和尾32bit（{8'd0,240,160,80}=0x00_f0_a0_50）
+    $display("[%0t] RGB first 32bit: 0x%08h (Expected: 0x001e140a)", 
+             $time, assembled_data[255:224]);
+    $display("[%0t] RGB last 32bit: 0x%08h (Expected: 0x00f0a050)", 
+             $time, assembled_data[31:0]);
+    #20;
+
+    // -------------------------- 测试3：关闭使能 --------------------------
+    $display("[%0t] Test 3: Disable assembly", $time);
+    en = 1'b0;
+    input_pixel_type = 1'b0;
+    @(posedge clk);
+    pixel_valid = 1'b1;
+    ir_ch0 = 8'd1;
+    @(posedge clk);
+    pixel_valid = 1'b0;
+    #10;
+    $display("[%0t] Disable check: done=%b (Expected:0)", $time, done);
+    #20;
+
+    $display("[%0t] All tests completed!", $time);
+    $finish;
+end
+
+endmodule