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olivier.gi |
/*===========================================================================*/
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/* Copyright (C) 2001 Authors */
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/* */
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/* This source file may be used and distributed without restriction provided */
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/* that this copyright statement is not removed from the file and that any */
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/* derivative work contains the original copyright notice and the associated */
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/* disclaimer. */
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/* */
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/* This source file is free software; you can redistribute it and/or modify */
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/* it under the terms of the GNU Lesser General Public License as published */
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/* by the Free Software Foundation; either version 2.1 of the License, or */
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/* (at your option) any later version. */
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/* */
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/* This source is distributed in the hope that it will be useful, but WITHOUT*/
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/* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or */
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/* FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public */
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/* License for more details. */
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/* */
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/* You should have received a copy of the GNU Lesser General Public License */
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/* along with this source; if not, write to the Free Software Foundation, */
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/* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */
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/* */
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/*===========================================================================*/
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/* TIMER A */
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/*---------------------------------------------------------------------------*/
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/* Test the timer A: */
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/* - Check the timer clock input mux. */
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olivier.gi |
/* */
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/* Author(s): */
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/* - Olivier Girard, olgirard@gmail.com */
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/* */
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/*---------------------------------------------------------------------------*/
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/* $Rev: 17 $ */
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/* $LastChangedBy: olivier.girard $ */
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/* $LastChangedDate: 2009-08-04 23:15:39 +0200 (Tue, 04 Aug 2009) $ */
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olivier.gi |
/*===========================================================================*/
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integer my_counter;
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always @ (negedge mclk)
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my_counter <= my_counter+1;
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wire [15:0] tar = timerA_0.tar;
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// Generate TACLK as MCLK/3
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integer taclk_cnt;
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always @ (posedge mclk or posedge puc)
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if (puc) taclk_cnt <= 0;
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else if (taclk_cnt==2) taclk_cnt <= 0;
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else taclk_cnt <= taclk_cnt+1;
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always @ (taclk_cnt)
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if (taclk_cnt==2) taclk = 1'b1;
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else taclk = 1'b0;
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// Generate INCLK as MCLK/5
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integer inclk_cnt;
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always @ (posedge mclk or posedge puc)
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if (puc) inclk_cnt <= 0;
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else if (inclk_cnt==4) inclk_cnt <= 0;
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else inclk_cnt <= inclk_cnt+1;
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always @ (inclk_cnt)
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if (inclk_cnt==4) inclk = 1'b1;
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else inclk = 1'b0;
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initial
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begin
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$display(" ===============================================");
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$display("| START SIMULATION |");
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$display(" ===============================================");
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repeat(5) @(posedge mclk);
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stimulus_done = 0;
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// TIMER A TEST: INPUT MUX - TACLK
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//--------------------------------------------------------
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// @(r15 === 16'h0000);
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@(r15 === 16'h0001);
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@(tar === 1);
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my_counter = 0;
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repeat(300) @(posedge mclk);
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if (tar !== 16'h0032) tb_error("====== TIMER A TEST: INPUT MUX - TACLK =====");
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// TIMER A TEST: INPUT MUX - ACLK
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//--------------------------------------------------------
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@(r15 === 16'h1000);
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@(r15 === 16'h1001);
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@(tar === 1);
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my_counter = 0;
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repeat(300) @(posedge mclk);
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if (tar !== 16'h0005) tb_error("====== TIMER A TEST: INPUT MUX - ACLK =====");
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// TIMER A TEST: INPUT MUX - SMCLK
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//--------------------------------------------------------
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@(r15 === 16'h2000);
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@(r15 === 16'h2001);
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@(tar === 1);
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my_counter = 0;
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repeat(300) @(posedge mclk);
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if (tar !== 16'h0013) tb_error("====== TIMER A TEST: INPUT MUX - SMCLK =====");
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// TIMER A TEST: INPUT MUX - INCLK
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//--------------------------------------------------------
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@(r15 === 16'h3000);
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@(r15 === 16'h3001);
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@(tar === 1);
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my_counter = 0;
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repeat(300) @(posedge mclk);
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if (tar !== 16'h001E) tb_error("====== TIMER A TEST: INPUT MUX - INCLK =====");
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stimulus_done = 1;
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end
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