pluto_hdl_adi/library/util_fir_dec/util_fir_dec.v

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// ***************************************************************************
// ***************************************************************************
// Copyright 2014 - 2017 (c) Analog Devices, Inc. All rights reserved.
//
// Each core or library found in this collection may have its own licensing terms.
// The user should keep this in in mind while exploring these cores.
//
// Redistribution and use in source and binary forms,
// with or without modification of this file, are permitted under the terms of either
// (at the option of the user):
//
// 1. The GNU General Public License version 2 as published by the
// Free Software Foundation, which can be found in the top level directory, or at:
// https://www.gnu.org/licenses/old-licenses/gpl-2.0.en.html
//
// OR
//
// 2. An ADI specific BSD license as noted in the top level directory, or on-line at:
// https://github.com/analogdevicesinc/hdl/blob/dev/LICENSE
//
// ***************************************************************************
// ***************************************************************************
`timescale 1ns/100ps
module util_fir_dec (
input aclk,
input s_axis_data_tvalid,
output s_axis_data_tready,
input [15:0] channel_0,
input [15:0] channel_1,
input decimate,
output m_axis_data_tvalid,
output [31:0] m_axis_data_tdata);
wire [31:0] s_axis_data_tdata;
wire m_axis_data_tvalid_s;
wire [31:0] m_axis_data_tdata_s;
assign s_axis_data_tdata = {channel_1, channel_0};
assign m_axis_data_tvalid = (decimate == 1'b1) ? m_axis_data_tvalid_s : s_axis_data_tvalid;
assign m_axis_data_tdata = (decimate == 1'b1) ? {m_axis_data_tdata_s[30:16], 1'b0, m_axis_data_tdata_s[14:0], 1'b0} : {channel_1, channel_0};
fir_decim decimator (
.aclk(aclk),
.s_axis_data_tvalid(s_axis_data_tvalid),
.s_axis_data_tready(s_axis_data_tready),
.s_axis_data_tdata(s_axis_data_tdata),
.m_axis_data_tvalid(m_axis_data_tvalid_s),
.m_axis_data_tdata(m_axis_data_tdata_s)
);
endmodule // util_fir_dec