jpeg_tb.v

来自「Pure hardware JPEG Encoder design. Packa」· Verilog 代码 · 共 129 行

module jpeg_tb;

parameter   CAPTURE_ORAM = "OUT_RAM.txt",
            CAPTURE_BIN = "test_out.jpg";

integer f_capture, f_capture_bin;

wire CLK;
wire RST;

wire [23:0] ram_rdaddr;
wire [7:0]  ram_q,ram_byte;

  wire ram_wren;
  wire [23:0] ram_wraddr; 
  
  wire [31:0] OPB_ABus;
  wire [3:0]  OPB_BE;
  wire [31:0] OPB_DBus_in;
  wire OPB_RNW;
  wire OPB_select;
  wire [31:0] OPB_DBus_out;
  wire OPB_XferAck;
  wire OPB_retry;
  wire OPB_toutSup;
  wire OPB_errAck;
  wire [19:0] iram_waddr;
  wire [19:0] iram_raddr;
  wire [23:0] iram_wdata;
  wire [23:0] iram_rdata;
  wire iram_wren;
  wire iram_rden;     
  wire sim_done;
  wire iram_fifo_afull;

ClkGen U_ClkGen(
    .CLK    (CLK),
    .RST    (RST)
);

//  ------------------------------
//  -- HOST Bus Functional Model
//  ------------------------------
HostBFM  U_HostBFM(
        .CLK            ( CLK),
        .RST            ( RST),
        //-- OPB
        .OPB_ABus       ( OPB_ABus),
        .OPB_BE         ( OPB_BE),
        .OPB_DBus_in    ( OPB_DBus_in),
        .OPB_RNW        ( OPB_RNW),
        .OPB_select     ( OPB_select),
        .OPB_DBus_out   ( OPB_DBus_out),
        .OPB_XferAck    ( OPB_XferAck),
        .OPB_retry      ( OPB_retry),
        .OPB_toutSup    ( OPB_toutSup),
        .OPB_errAck     ( OPB_errAck),
        
        //-- IRAM
        .iram_wdata     ( iram_wdata),
        .iram_wren      ( iram_wren),
        .fifo_almost_full ( iram_fifo_afull),
        
        .sim_done       ( sim_done)
    );
  
//  ------------------------------
//  -- JPEG ENCODER
//  ------------------------------
JpegEnc  U_JpegEnc
  (
        .CLK                ( CLK),
        .RST                ( RST),

        //-- OPB
        .OPB_ABus           ( OPB_ABus),
        .OPB_BE             ( OPB_BE),
        .OPB_DBus_in        ( OPB_DBus_in),
        .OPB_RNW            ( OPB_RNW),
        .OPB_select         ( OPB_select),
        .OPB_DBus_out       ( OPB_DBus_out),
        .OPB_XferAck        ( OPB_XferAck),
        .OPB_retry          ( OPB_retry),
        .OPB_toutSup        ( OPB_toutSup),
        .OPB_errAck         ( OPB_errAck),  

        //-- IMAGE RAM
        .iram_wdata         ( iram_wdata),
        .iram_wren          ( iram_wren),
        .iram_fifo_afull    ( iram_fifo_afull),

        //-- OUT RAM
        .ram_byte           ( ram_byte),
        .ram_wren           ( ram_wren),  
        .ram_wraddr         ( ram_wraddr)    
    );

//  -------------------------------------------------------------------
//  -- OUT RAM
//  -------------------------------------------------------------------
RAMSIM   #(18,8) U_OUT_RAM
  (      
        .d           ( ram_byte),
        .waddr       ( ram_wraddr[17:0]),
        .raddr       ( ram_rdaddr[17:0]),
        .we          ( ram_wren),
        .clk         ( CLK),
                    
        .q           ( ram_q)
  ); 

initial
begin
    f_capture = $fopen(CAPTURE_ORAM);
    f_capture_bin = $fopen(CAPTURE_BIN);
    
    while(sim_done!=1) begin
        @(posedge CLK);
        if(ram_wren) begin
            $fwriteb(f_capture_bin,"%c",ram_byte);
        end
    end
    $fclose(f_capture);
    $fclose(f_capture_bin);
    //$finish;
end

endmodule