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//
// Copyright 2016 Ettus Research, a National Instruments Company
//
// SPDX-License-Identifier: LGPL-3.0-or-later
//
`timescale 1ns/1ps
module new_tx_control_tb();
reg clk = 0;
reg reset = 1;
always #10 clk = ~clk;
initial $dumpfile("new_tx_control_tb.vcd");
initial $dumpvars(0,new_tx_control_tb);
initial
begin
#1000 reset = 0;
#30000;
$finish;
end
reg [143:0] tdata;
reg tlast;
wire tlast_int;
reg tvalid = 1'b0;
wire tready;
reg [7:0] set_addr;
reg [31:0] set_data;
reg set_stb = 1'b0;
reg [31:0] samp0, samp1;
task send_packet;
input [31:0] count;
input [31:0] start_data;
input [63:0] send_time;
input [11:0] pkt_seqnum;
input eop;
input eob;
input send_at;
input odd;
begin
// Send a packet
samp0 <= start_data;
samp1 <= start_data + 1;
@(posedge clk);
repeat (count-1)
begin
tdata <= { 1'b0,send_at,1'b0,1'b0,1'b0,pkt_seqnum,send_time,samp0,samp1 };
tvalid <= 1;
samp0 <= samp0 + 2;
samp1 <= samp1 + 2;
@(posedge clk);
end
tdata <= { odd,send_at,1'b0,eob,eop,pkt_seqnum,send_time,samp0,samp1 };
@(posedge clk);
tvalid <= 0;
@(posedge clk);
end
endtask // send_packet
initial
begin
tvalid <= 1'b0;
while(reset)
@(posedge clk);
set_addr <= 8'd0;
set_data <= 32'd2;
set_stb <= 1'b1;
@(posedge clk);
set_stb <= 1'b0;
// Single Packet burst, timed
send_packet(3/*count*/,32'hA000_0000/*data*/,64'h100/*time*/,1/*SEQ*/,1/*EOP*/,1/*eob*/,1/*timed*/,0/*odd*/);
// 2 packet burst, timed
//send_packet(3/*count*/,32'hB000_0000/*data*/,64'h200/*time*/,2/*SEQ*/,1/*EOP*/,0/*eob*/,1/*timed*/,0/*odd*/);
//send_packet(3/*count*/,32'hC000_0000/*data*/,64'h0/*time*/,3/*SEQ*/,1/*EOP*/,1/*eob*/,0/*timed*/,0/*odd*/);
// single odd packet
//send_packet(3/*count*/,32'h0A00_0000/*data*/,64'h300/*time*/,4/*SEQ*/,1/*EOP*/,1/*eob*/,1/*timed*/,1/*odd*/);
// 2 packet burst, timed, odd
//send_packet(3/*count*/,32'hD000_0000/*data*/,64'h400/*time*/,5/*SEQ*/,1/*EOP*/,0/*eob*/,1/*timed*/,1/*odd*/);
//send_packet(3/*count*/,32'hE000_0000/*data*/,64'd0/*time*/,6/*SEQ*/,1/*EOP*/,1/*eob*/,0/*timed*/,1/*odd*/);
// 2 packet burst, untimed, no eob set
//send_packet(3/*count*/,32'hF000_0000/*data*/,64'd0/*time*/,7/*SEQ*/,1/*EOP*/,0/*eob*/,0/*timed*/,0/*odd*/);
//send_packet(3/*count*/,32'h9000_0000/*data*/,64'd0/*time*/,8/*SEQ*/,1/*EOP*/,0/*eob*/,0/*timed*/,0/*odd*/);
// single packet late
send_packet(3/*count*/,32'hD000_0000/*data*/,64'h0/*time*/,4/*SEQ*/,1/*EOP*/,1/*eob*/,1/*timed*/,1/*odd*/);
end
reg [63:0] vita_time;
wire [31:0] sample;
wire [143:0] sample_tdata;
wire sample_tready, sample_tvalid;
wire [11:0] seqnum;
wire [31:0] error_code;
always @(posedge clk)
if(reset)
vita_time <= 0;
else
vita_time <= vita_time + 1;
axi_fifo #(.WIDTH(144)) axi_fifo_short
(.clk(clk), .reset(reset), .clear(1'b0),
.i_tdata(tdata), .i_tvalid(tvalid), .i_tready(tready),
.o_tdata(sample_tdata), .o_tvalid(sample_tvalid), .o_tready(sample_tready));
new_tx_control new_tx_control
(.clk(clk), .reset(reset), .clear(1'b0),
.set_stb(set_stb), .set_addr(set_addr), .set_data(set_data),
.vita_time(vita_time),
.error(error), .ack(ack), .packet_consumed(consumed), .seqnum(seqnum), .error_code(error_code),
.sample_tdata(sample_tdata), .sample_tvalid(sample_tvalid), .sample_tready(sample_tready),
.sample(sample), .run(run), .strobe(strobe),
.debug()
);
assign strobe = run;
always @(posedge clk)
begin
if(strobe)
$display("%x\t%x", vita_time, sample);
if(consumed) $display("CONSUMED %x", seqnum);
if(ack) $display("ACK %x", seqnum);
if(error) $display("ERROR %x\t%x", seqnum,error_code);
end
endmodule // new_tx_control_tb
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