test.ant

实现乒乓缓存

////////////////////////////////////////////////////////////////////////////////
// Copyright (c) 1995-2003 Xilinx, Inc.
// All Right Reserved.
////////////////////////////////////////////////////////////////////////////////
//   ____  ____ 
//  /   /\/   / 
// /___/  \  /    Vendor: Xilinx 
// \   \   \/     Version : 7.1i
//  \   \         Application : ISE Foundation
//  /   /         Filename : test.ant
// /___/   /\     Timestamp : Wed Dec 26 22:44:38 2007
// \   \  /  \ 
//  \___\/\___\ 
//
//Command: 
//Design Name: test
//Device: Xilinx
//
`timescale 1ns/1ps

module test;
    reg clk_5m = 1'b0;
    reg rst = 1'b1;
    reg nd = 1'b0;
    reg [15:0] indata = 16'b0000000000000000;
    wire [15:0] out;
    wire rdy;

    parameter PERIOD = 200;
    parameter real DUTY_CYCLE = 0.5;
    parameter OFFSET = 0;

    initial    // Clock process for clk_5m
    begin
        #OFFSET;
        forever
        begin
            clk_5m = 1'b0;
            #(PERIOD-(PERIOD*DUTY_CYCLE)) clk_5m = 1'b1;
            #(PERIOD*DUTY_CYCLE);
        end
    end

    pingpang UUT (
        .clk_5m(clk_5m),
        .rst(rst),
        .nd(nd),
        .indata(indata),
        .out(out),
        .rdy(rdy));

    integer TX_FILE = 0;
    integer TX_ERROR = 0;
    
    initial begin    // Annotation process for clock clk_5m
        #0;
        ANNOTATE_out;
        ANNOTATE_rdy;
        #OFFSET;
        forever begin
            #115;
            ANNOTATE_out;
            ANNOTATE_rdy;
            #85;
        end
    end

    initial begin  // Open the annotations file...
        TX_FILE = $fopen("D:\\LijunYang_software\\code_chinaeda\\pingpang\\test.ano");
        #100200 // Final time:  100200 ns
        $display("Success! Annotation Simulation Complete.");
        $fdisplay(TX_FILE, "Total[%d]", TX_ERROR);
        $fclose(TX_FILE);
        $finish;
    end

    initial begin
        // -------------  Current Time:  85ns
        #85;
        nd = 1'b1;
        indata = 16'b0000000000000010;
        // -------------------------------------
        // -------------  Current Time:  285ns
        #200;
        rst = 1'b0;
        indata = 16'b0000000000000011;
        // -------------------------------------
        // -------------  Current Time:  485ns
        #200;
        indata = 16'b0000000000000100;
        // -------------------------------------
        // -------------  Current Time:  685ns
        #200;
        indata = 16'b0000000000000101;
        // -------------------------------------
        // -------------  Current Time:  885ns
        #200;
        indata = 16'b0000000000000110;
        // -------------------------------------
        // -------------  Current Time:  1085ns
        #200;
        indata = 16'b0000000000000111;
        // -------------------------------------
        // -------------  Current Time:  1285ns
        #200;
        indata = 16'b0000000000001000;
        // -------------------------------------
        // -------------  Current Time:  1485ns
        #200;
        indata = 16'b0000000000001001;
        // -------------------------------------
        // -------------  Current Time:  1685ns
        #200;
        indata = 16'b0000000000001010;
        // -------------------------------------
        // -------------  Current Time:  1885ns
        #200;
        indata = 16'b0000000000001011;
        // -------------------------------------
        // -------------  Current Time:  2085ns
        #200;
        indata = 16'b0000000000001100;
        // -------------------------------------
        // -------------  Current Time:  2285ns
        #200;
        indata = 16'b0000000000001101;
        // -------------------------------------
        // -------------  Current Time:  2485ns
        #200;
        indata = 16'b0000000000001110;
        // -------------------------------------
        // -------------  Current Time:  2685ns
        #200;
        indata = 16'b0000000000010000;
        // -------------------------------------
        // -------------  Current Time:  2885ns
        #200;
        indata = 16'b0000000000001111;
        // -------------------------------------
        // -------------  Current Time:  3085ns
        #200;
        indata = 16'b0000000000010001;
        // -------------------------------------
        // -------------  Current Time:  3285ns
        #200;
        indata = 16'b0000000000010010;
        // -------------------------------------
        // -------------  Current Time:  3485ns
        #200;
        indata = 16'b0000000000010011;
        // -------------------------------------
        // -------------  Current Time:  3685ns
        #200;
        indata = 16'b0000000000010100;
        // -------------------------------------
        // -------------  Current Time:  3885ns
        #200;
        indata = 16'b0000000000010101;
        // -------------------------------------
        // -------------  Current Time:  4085ns
        #200;
        indata = 16'b0000000000010110;
        // -------------------------------------
        // -------------  Current Time:  4285ns
        #200;
        indata = 16'b0000000000010111;
        // -------------------------------------
        // -------------  Current Time:  4485ns
        #200;
        indata = 16'b0000000000011000;
        // -------------------------------------
        // -------------  Current Time:  5485ns
        #1000;
        indata = 16'b0000000000101101;
        // -------------------------------------
        // -------------  Current Time:  7085ns
        #1600;
        indata = 16'b0000000001000100;
        // -------------------------------------
        // -------------  Current Time:  9885ns
        #2800;
        indata = 16'b0000000000101101;
        // -------------------------------------
        // -------------  Current Time:  19885ns
        #10000;
        indata = 16'b0000000000001100;
        // -------------------------------------
        // -------------  Current Time:  32685ns
        #12800;
        indata = 16'b0000000000010111;
        // -------------------------------------
        // -------------  Current Time:  43085ns
        #10400;
        indata = 16'b0000000000100010;
        // -------------------------------------
        // -------------  Current Time:  60685ns
        #17600;
        indata = 16'b0000000000100011;
        // -------------------------------------
        // -------------  Current Time:  83485ns
        #22800;
        indata = 16'b0000000000111000;
        // -------------------------------------
        // -------------  Current Time:  91885ns
        #8400;
        indata = 16'b0000000001001110;
        // -------------------------------------
    end

    task ANNOTATE_out;
        #0 begin
            $fdisplay(TX_FILE, "Annotate[%d,out,%b]", $time, out);
            $fflush(TX_FILE);
            TX_ERROR = TX_ERROR + 1;
        end
    endtask

    task ANNOTATE_rdy;
        #0 begin
            $fdisplay(TX_FILE, "Annotate[%d,rdy,%b]", $time, rdy);
            $fflush(TX_FILE);
            TX_ERROR = TX_ERROR + 1;
        end
    endtask

endmodule