pluto_hdl_adi/library/util_pack/tb/cpack_tb.v

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// ***************************************************************************
// ***************************************************************************
// Copyright 2018 (c) Analog Devices, Inc. All rights reserved.
//
// In this HDL repository, there are many different and unique modules, consisting
// of various HDL (Verilog or VHDL) components. The individual modules are
// developed independently, and may be accompanied by separate and unique license
// terms.
//
// The user should read each of these license terms, and understand the
// freedoms and responsabilities that he or she has by using this source/core.
//
// This core 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.
//
// Redistribution and use of source or resulting binaries, with or without modification
// of this file, are permitted under one of the following two license terms:
//
// 1. The GNU General Public License version 2 as published by the
// Free Software Foundation, which can be found in the top level directory
// of this repository (LICENSE_GPL2), and also online at:
// <https://www.gnu.org/licenses/old-licenses/gpl-2.0.html>
//
// OR
//
// 2. An ADI specific BSD license, which can be found in the top level directory
// of this repository (LICENSE_ADIBSD), and also on-line at:
// https://github.com/analogdevicesinc/hdl/blob/master/LICENSE_ADIBSD
// This will allow to generate bit files and not release the source code,
// as long as it attaches to an ADI device.
//
// ***************************************************************************
// ***************************************************************************
`timescale 1ns/100ps
module cpack_tb;
parameter VCD_FILE = {`__FILE__,"cd"};
parameter NUM_OF_CHANNELS = 4;
parameter SAMPLES_PER_CHANNEL = 1;
parameter ENABLE_RANDOM = 0;
`define TIMEOUT 1500000
`include "tb_base.v"
localparam NUM_OF_PORTS = SAMPLES_PER_CHANNEL * NUM_OF_CHANNELS;
reg fifo_wr_en = 1'b1;
reg [NUM_OF_PORTS*8-1:0] fifo_wr_data = 'h00;
wire packed_fifo_wr_en;
wire [NUM_OF_PORTS*8-1:0] packed_fifo_wr_data;
reg [NUM_OF_PORTS*8-1:0] expected_packed_fifo_wr_data;
reg [NUM_OF_CHANNELS-1:0] enable = 'h1;
reg [NUM_OF_CHANNELS-1:0] next_enable = 'h1;
integer counter;
always @(*) begin
if (counter == 15) do_trigger_reset();
end
always @(posedge clk) begin
if (trigger_reset == 1'b1) begin
if (enable != {NUM_OF_CHANNELS{1'b1}}) begin
enable <= enable + 1'b1;
end else begin
if (failed == 1'b0)
$display("SUCCESS");
else
$display("FAILED");
$finish;
end
end
end
reg reset_data = 1'b0;
integer reset_counter = 'h00;
always @(posedge clk) begin
if (reset == 1'b1) begin
reset_data <= 1'b1;
reset_counter <= 'h00;
end else begin
reset_counter <= reset_counter + 1'b1;
if (reset_counter == 'h5) begin
reset_data <= 1'b0;
end
end
end
always @(posedge clk) begin
if (reset == 1'b1) begin
counter <= 'h00;
end else if (packed_fifo_wr_en == 1'b1) begin
counter <= counter + 1;
end
end
always @(posedge clk) begin
if (reset == 1'b0 && packed_fifo_wr_en == 1'b1 &&
expected_packed_fifo_wr_data !== packed_fifo_wr_data) begin
failed <= 1'b1;
$display("Failed for enable mask: %x. Expected data %x, got %x",
enable, expected_packed_fifo_wr_data, packed_fifo_wr_data);
end
end
integer j;
integer h;
always @(posedge clk) begin
if (reset == 1'b1) begin
j = 0;
for (h = 0; h < SAMPLES_PER_CHANNEL; h = h + 1) begin
for (i = 0; i < NUM_OF_CHANNELS; i = i + 1) begin
if (enable[i] == 1'b1) begin
fifo_wr_data[(i*SAMPLES_PER_CHANNEL+h)*8+:8] <= j;
j = j + 1;
end else begin
fifo_wr_data[(i*SAMPLES_PER_CHANNEL+h)*8+:8] <= 'hxx;
end
end
end
end else if (fifo_wr_en == 1'b1) begin
for (h = 0; h < SAMPLES_PER_CHANNEL; h = h + 1) begin
for (i = 0; i < NUM_OF_CHANNELS; i = i + 1) begin
if (enable[i] == 1'b1) begin
fifo_wr_data[(i*SAMPLES_PER_CHANNEL+h)*8+:8] <= j;
j = j + 1;
end
end
end
end
end
integer i;
always @(posedge clk) begin
if (reset == 1'b1) begin
for (i = 0; i < NUM_OF_PORTS; i = i + 1) begin
expected_packed_fifo_wr_data[i*8+:8] <= i;
end
end else if (packed_fifo_wr_en == 1'b1) begin
for (i = 0; i < NUM_OF_PORTS; i = i + 1) begin
expected_packed_fifo_wr_data[i*8+:8] <= expected_packed_fifo_wr_data[i*8+:8] + NUM_OF_PORTS;
end
end
end
always @(posedge clk) begin
if (reset_data == 1'b1) begin
fifo_wr_en <= 1'b0;
end else begin
fifo_wr_en <= ENABLE_RANDOM ? ($random & 1'b1) : ~fifo_wr_en;
end
end
util_cpack2_impl #(
.NUM_OF_CHANNELS(NUM_OF_CHANNELS),
.SAMPLES_PER_CHANNEL(SAMPLES_PER_CHANNEL),
.SAMPLE_DATA_WIDTH(8)
) i_cpack (
.clk(clk),
.reset(reset),
.enable(enable),
.fifo_wr_en({NUM_OF_CHANNELS{fifo_wr_en}}),
.fifo_wr_data(fifo_wr_data),
.packed_fifo_wr_en(packed_fifo_wr_en),
.packed_fifo_wr_data(packed_fifo_wr_data),
.packed_fifo_wr_overflow(1'b0)
);
endmodule