//////////////////////////////////////////////////////////////////////
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//////////////////////////////////////////////////////////////////////
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//// ////
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//// ////
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//// GPIO Monitor ////
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//// GPIO Monitor ////
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//// ////
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//// ////
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//// This file is part of the GPIO project ////
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//// This file is part of the GPIO project ////
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//// http://www.opencores.org/cores/gpio/ ////
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//// http://www.opencores.org/cores/gpio/ ////
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//// ////
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//// ////
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//// Description ////
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//// Description ////
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//// Generates and monitors GPIO external signals (+auxiliary) ////
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//// Generates and monitors GPIO external signals (+auxiliary) ////
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//// ////
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//// ////
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//// To Do: ////
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//// To Do: ////
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//// Nothing ////
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//// Nothing ////
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//// ////
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//// ////
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//// Author(s): ////
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//// Author(s): ////
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//// - Damjan Lampret, lampret@opencores.org ////
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//// - Damjan Lampret, lampret@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) 2000 Authors and OPENCORES.ORG ////
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//// Copyright (C) 2000 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 ////
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//// 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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//
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//
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// CVS Revision History
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// CVS Revision History
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//
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//
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// $Log: not supported by cvs2svn $
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// $Log: not supported by cvs2svn $
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// Revision 1.1 2001/08/21 21:39:27 lampret
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// Revision 1.1 2001/08/21 21:39:27 lampret
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// Changed directory structure, port names and drfines.
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// Changed directory structure, port names and drfines.
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//
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//
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// Revision 1.2 2001/07/14 20:37:20 lampret
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// Revision 1.2 2001/07/14 20:37:20 lampret
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// Test bench improvements.
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// Test bench improvements.
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//
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//
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// Revision 1.1 2001/06/05 07:45:22 lampret
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// Revision 1.1 2001/06/05 07:45:22 lampret
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// Added initial RTL and test benches. There are still some issues with these files.
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// Added initial RTL and test benches. There are still some issues with these files.
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//
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//
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//
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//
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`include "timescale.v"
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`include "timescale.v"
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`include "gpio_defines.v"
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`include "gpio_defines.v"
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module gpio_mon(gpio_aux, gpio_in, gpio_eclk, gpio_out, gpio_oen);
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module gpio_mon(gpio_aux, gpio_in, gpio_eclk, gpio_out, gpio_oen);
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parameter gw = `GPIO_IOS;
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parameter gw = `GPIO_IOS;
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//
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//
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// I/O ports
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// I/O ports
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//
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//
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output [gw-1:0] gpio_aux; // Auxiliary
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output [gw-1:0] gpio_aux; // Auxiliary
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output [gw-1:0] gpio_in; // GPIO inputs
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output [gw-1:0] gpio_in; // GPIO inputs
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output gpio_eclk; // GPIO external clock
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output gpio_eclk; // GPIO external clock
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input [gw-1:0] gpio_out; // GPIO outputs
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input [gw-1:0] gpio_out; // GPIO outputs
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input [gw-1:0] gpio_oen; // GPIO output enables
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input [gw-1:0] gpio_oen; // GPIO output enables
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//
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//
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// Internal regs
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// Internal regs
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//
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//
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reg [gw-1:0] gpio_aux;
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reg [gw-1:0] gpio_aux;
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reg [gw-1:0] gpio_in;
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reg [gw-1:0] gpio_in;
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reg gpio_eclk;
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reg gpio_eclk;
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initial gpio_eclk = 0;
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initial gpio_eclk = 0;
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//
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//
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// Set gpio_in
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// Set gpio_in
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//
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//
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task set_gpioin;
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task set_gpioin;
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input [31:0] val;
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input [31:0] val;
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begin
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begin
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gpio_in = val;
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gpio_in = val;
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end
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end
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endtask
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endtask
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//
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//
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// Set gpio_aux
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// Set gpio_aux
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//
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//
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task set_gpioaux;
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task set_gpioaux;
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input [31:0] val;
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input [31:0] val;
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begin
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begin
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gpio_aux = val;
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gpio_aux = val;
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end
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end
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endtask
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endtask
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//
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//
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// Set gpio_eclk
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// Set gpio_eclk
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//
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//
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task set_gpioeclk;
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task set_gpioeclk;
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input [31:0] val;
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input [31:0] val;
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begin
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begin
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gpio_eclk = val[0];
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gpio_eclk = val[0];
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end
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end
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endtask
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endtask
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//
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//
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// Get gpio_out
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// Get gpio_out
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//
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//
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task get_gpioout;
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task get_gpioout;
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output [31:0] val;
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output [31:0] val;
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reg [31:0] val;
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reg [31:0] val;
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begin
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begin
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val = gpio_out;
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val = gpio_out;
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end
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end
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endtask
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endtask
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//
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//
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// Get gpio_oen
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// Get gpio_oen
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//
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//
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task get_gpiooen;
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task get_gpiooen;
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output [31:0] val;
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output [31:0] val;
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begin
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begin
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val = gpio_oen;
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val = gpio_oen;
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end
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end
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endtask
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endtask
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endmodule
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endmodule
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