//////////////////////////////////////////////////////////////////////
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//////////////////////////////////////////////////////////////////////
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//// ////
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//// ////
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//// Low Pass Filter FIR with AXI-Stream Interface ////
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//// Low Pass Filter FIR with AXI-Stream Interface ////
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//// ////
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//// ////
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//// This file is part of the LPFFIR project ////
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//// This file is part of the LPFFIR project ////
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//// https://opencores.org/projects/lpffir ////
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//// https://opencores.org/projects/lpffir ////
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//// ////
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//// ////
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//// Description ////
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//// Description ////
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//// Implementation of AXI-Stream (AXIS) protocol rapper ////
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//// Implementation of AXI-Stream (AXIS) protocol rapper ////
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/// of LPFFIR IP core according to ////
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/// of LPFFIR IP core according to ////
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//// LPFFIR IP core specification document. ////
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//// LPFFIR IP core specification document. ////
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//// ////
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//// ////
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//// To Do: ////
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//// To Do: ////
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//// - ////
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//// - ////
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//// ////
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//// ////
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//// Author: ////
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//// Author: ////
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//// - Vladimir Armstrong, vladimirarmstrong@opencores.org ////
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//// - Vladimir Armstrong, vladimirarmstrong@opencores.org ////
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//// ////
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//// ////
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//////////////////////////////////////////////////////////////////////
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//////////////////////////////////////////////////////////////////////
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//// ////
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//// ////
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//// Copyright (C) 2019 Authors and OPENCORES.ORG ////
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//// Copyright (C) 2019 Authors and OPENCORES.ORG ////
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//// ////
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//// ////
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//// This source file may be used and distributed without ////
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//// This source file may be used and distributed without ////
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//// restriction provided that this copyright statement is not ////
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//// restriction provided that this copyright statement is not ////
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//// removed from the file and that any derivative work contains ////
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//// removed from the file and that any derivative work contains ////
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//// the original copyright notice and the associated disclaimer. ////
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//// the original copyright notice and the associated disclaimer. ////
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//// ////
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//// ////
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//// This source file is free software; you can redistribute it ////
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//// This source file is free software; you can redistribute it ////
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//// and/or modify it under the terms of the GNU Lesser General ////
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//// and/or modify it under the terms of the GNU Lesser General ////
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//// Public License as published by the Free Software Foundation; ////
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//// Public License as published by the Free Software Foundation; ////
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//// either version 2.1 of the License, or (at your option) any ////
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//// either version 2.1 of the License, or (at your option) any ////
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//// later version. ////
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//// later version. ////
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//// ////
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//// ////
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//// This source is distributed in the hope that it will be ////
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//// This source is distributed in the hope that it will be ////
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//// useful, but WITHOUT ANY WARRANTY; without even the implied ////
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//// useful, but WITHOUT ANY WARRANTY; without even the implied ////
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//// warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR ////
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//// warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR ////
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//// PURPOSE. See the GNU Lesser General Public License for more ////
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//// PURPOSE. See the GNU Lesser General Public License for more ////
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//// details. ////
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//// details. ////
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//// ////
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//// ////
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//// You should have received a copy of the GNU Lesser General ////
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//// You should have received a copy of the GNU Lesser General ////
|
//// Public License along with this source; if not, download it ////
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//// Public License along with this source; if not, download it ////
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//// from http://www.opencores.org/lgpl.shtml ////
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//// from http://www.opencores.org/lgpl.shtml ////
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//// ////
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//// ////
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//////////////////////////////////////////////////////////////////////
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//////////////////////////////////////////////////////////////////////
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module lpffir_axis (
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module lpffir_axis (
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input aclk_i,
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input aclk_i,
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input aresetn_i,
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input aresetn_i,
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// AXI-Stream RX interface
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// AXI-Stream RX interface
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input rx_tlast_i,
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input rx_tlast_i,
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input rx_tvalid_i,
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input rx_tvalid_i,
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output logic rx_tready_o,
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output logic rx_tready_o,
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input [15:0] rx_tdate_i,
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input [15:0] rx_tdata_i,
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// AXI-Stream TX interface
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// AXI-Stream TX interface
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output logic tx_tlast_o,
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output logic tx_tlast_o,
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output reg tx_tvalid_o,
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output reg tx_tvalid_o,
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input tx_tready_i,
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input tx_tready_i,
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output logic [15:0] tx_tdate_o
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output logic [15:0] tx_tdata_o
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);
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);
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logic lpffir_en = rx_tvalid_i && tx_tready_i;
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logic lpffir_en = rx_tvalid_i && tx_tready_i;
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// AXI-Stream interface
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// AXI-Stream interface
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assign rx_tready_o = lpffir_en;
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assign rx_tready_o = lpffir_en;
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assign tx_tvalid_o = lpffir_en;
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assign tx_tvalid_o = lpffir_en;
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assign tx_tlast_o = rx_tlast_i;
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assign tx_tlast_o = rx_tlast_i;
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// LPFFIR
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// LPFFIR
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lpffir_core lpffir_core(
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lpffir_core lpffir_core(
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.clk_i(aclk_i),
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.clk_i(aclk_i),
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.rstn_i(aresetn_i),
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.rstn_i(aresetn_i),
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.en_i(lpffir_en),
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.en_i(lpffir_en),
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.x_i(rx_tdate_i),
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.x_i(rx_tdata_i),
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.y_o(tx_tdate_o)
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.y_o(tx_tdata_o)
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);
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);
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endmodule
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endmodule
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