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diff --git a/fpga/usrp2/control_lib/wb_sim.v b/fpga/usrp2/control_lib/wb_sim.v
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+//
+// Copyright 2011 Ettus Research LLC
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program. If not, see <http://www.gnu.org/licenses/>.
+//
+
+
+
+module wb_sim();
+
+ wire wb_clk, wb_rst;
+ wire start;
+
+ reg POR, aux_clk, clk_fpga;
+
+ initial POR = 1'b1;
+ initial #103 POR = 1'b0;
+
+ initial aux_clk = 1'b0;
+ always #25 aux_clk = ~aux_clk;
+
+ initial clk_fpga = 1'bx;
+ initial #3007 clk_fpga = 1'b0;
+ always #7 clk_fpga = ~clk_fpga;
+
+ initial begin
+ $dumpfile("wb_sim.vcd");
+ $dumpvars(0,wb_sim);
+ end
+
+ initial #10000 $finish;
+
+ wire [15:0] rom_addr;
+ wire [47:0] rom_data;
+ wire [31:0] wb_dat;
+ wire [15:0] wb_adr;
+ wire wb_cyc,wb_stb,wb_we,wb_ack;
+ wire [3:0] wb_sel;
+
+ wire [31:0] port_output;
+
+
+ system_control system_control(.dsp_clk(dsp_clk),
+ .reset_out(reset_out),
+ .wb_clk_o(wb_clk),
+ .wb_rst_o(wb_rst),
+ .wb_rst_o_alt(wb_rst_o_alt),
+ .start (start),
+ .aux_clk(aux_clk),
+ .clk_fpga(clk_fpga),
+ .POR (POR),
+ .done (done));
+
+ clock_bootstrap_rom cbrom(.addr(rom_addr),.data(rom_data));
+
+ wb_bus_writer bus_writer(.rom_addr (rom_addr[15:0]),
+ .wb_dat_o (wb_dat[31:0]),
+ .wb_adr_o (wb_adr[15:0]),
+ .wb_cyc_o (wb_cyc),
+ .wb_sel_o (wb_sel[3:0]),
+ .wb_stb_o (wb_stb),
+ .wb_we_o (wb_we),
+ .start (start),
+ .done (done),
+ .rom_data (rom_data[47:0]),
+ .wb_clk_i (wb_clk),
+ .wb_rst_i (wb_rst),
+ .wb_ack_i (wb_ack));
+
+ wb_output_pins32 output_pins(.wb_dat_o(),
+ .wb_ack_o(wb_ack),
+ .port_output(port_output[31:0]),
+ .wb_rst_i(wb_rst),
+ .wb_clk_i(wb_clk),
+ .wb_dat_i(wb_dat[31:0]),
+ .wb_we_i(wb_we),
+ .wb_sel_i(wb_sel[3:0]),
+ .wb_stb_i(wb_stb),
+ .wb_cyc_i(wb_cyc));
+
+
+
+
+endmodule // wb_sim
+