jpeg FPGA代码

///////////////////////////////////////////////////////////////////// //// //// //// JPEG Run-Length testbench //// //// //// //// Author: Richard Herveille //// //// richard@asics.ws //// //// www.asics.ws //// //// //// ///////////////////////////////////////////////////////////////////// //// //// //// Copyright (C) 2001 Richard Herveille //// //// richard@asics.ws //// //// //// //// This source file may be used and distributed without //// //// restriction provided that this copyright statement is not //// //// removed from the file and that any derivative work contains //// //// the original copyright notice and the associated disclaimer.//// //// //// //// THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY //// //// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED //// //// TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS //// //// FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL THE AUTHOR //// //// OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, //// //// INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES //// //// (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE //// //// GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR //// //// BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF //// //// LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT //// //// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT //// //// OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE //// //// POSSIBILITY OF SUCH DAMAGE. //// //// //// ///////////////////////////////////////////////////////////////////// // CVS Log // // $Id: bench.v,v 1.1.1.1 2002/03/26 07:25:12 rherveille Exp $ // // $Date: 2002/03/26 07:25:12 $ // $Revision: 1.1.1.1 $ // $Author: rherveille $ // $Locker: $ // $State: Exp $ // // Change History: // $Log: bench.v,v $ // Revision 1.1.1.1 2002/03/26 07:25:12 rherveille // First upload // `timescale 1ns/10ps module bench(); // // variables // reg clk; reg [11:0] din; reg go; reg rst; wire [ 3:0] rlen, size; wire [11:0] amp; wire den; // // module body // // hookup rle jpeg_rle dut( .clk(clk), .rst(rst), .ena(1'b1), .go(go), .din(din), .rlen(rlen), .size(size), .amp(amp), .den(den) ); always #5 clk <= !clk; initial begin clk = 0; go = 1'b0; // reset system rst = 0; #26; // wait a while rst = 1; //send sample block through rle encoder @(posedge clk); din <= 15; go <= 1'b1; @(posedge clk); din <= 0; go <= 1'b0; @(posedge clk); din <= -2; @(posedge clk); din <= -1; repeat(3)@(posedge clk); din <= 0; repeat(2)@(posedge clk); din <= -1; @(posedge clk); din <= 0; repeat(64-9)@(posedge clk); // wait a while repeat(20)@(posedge clk); $stop; end endmodule