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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 fifo_tb();
reg clk = 0;
reg rst = 1;
reg clear = 0;
initial #1000 rst = 0;
always #50 clk = ~clk;
reg [31:0] f36_data = 0;
reg [1:0] f36_occ = 0;
reg f36_sof = 0, f36_eof = 0;
reg f36_src_rdy;
wire f36_dst_rdy;
wire [7:0] ll_data;
wire ll_src_rdy, ll_dst_rdy, ll_sof, ll_eof;
wire [35:0] err_dat;
wire err_src_rdy, err_dst_rdy;
fifo36_to_ll8 fifo36_to_ll8
(.clk(clk),.reset(rst),.clear(clear),
.f36_data({f36_occ,f36_eof,f36_sof,f36_data}),.f36_src_rdy_i(f36_src_rdy),.f36_dst_rdy_o(f36_dst_rdy),
.ll_data(ll_data),.ll_sof(ll_sof),.ll_eof(ll_eof),
.ll_src_rdy(ll_src_rdy),.ll_dst_rdy(ll_dst_rdy));
assign ll_dst_rdy = 1;
always @(posedge clk)
if(ll_src_rdy)
$display("LL: SOF %d, EOF %d, DAT %x",ll_sof,ll_eof,ll_data);
initial $dumpfile("fifo_tb.vcd");
initial $dumpvars(0,fifo_tb);
initial
begin
@(negedge rst);
@(posedge clk);
@(posedge clk);
@(posedge clk);
@(posedge clk);
f36_src_rdy <= 1;
{f36_occ,f36_eof,f36_sof,f36_data} <= { 2'b00,1'b0,1'b1,32'h00010203};
@(posedge clk);
{f36_occ,f36_eof,f36_sof,f36_data} <= { 2'b00,1'b0,1'b0,32'h04050607};
@(posedge clk);
{f36_occ,f36_eof,f36_sof,f36_data} <= { 2'b00,1'b0,1'b0,32'h08090a0b};
@(posedge clk);
{f36_occ,f36_eof,f36_sof,f36_data} <= { 2'b11,1'b1,1'b0,32'h0c0d0e0f};
@(posedge clk);
f36_src_rdy <= 0;
end
initial #4000 $finish;
endmodule // longfifo_tb
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