main.cpp revision 12855:588919e0e4aa 
1/*****************************************************************************
2
3  Licensed to Accellera Systems Initiative Inc. (Accellera) under one or
4  more contributor license agreements.  See the NOTICE file distributed
5  with this work for additional information regarding copyright ownership.
6  Accellera licenses this file to you under the Apache License, Version 2.0
7  (the "License"); you may not use this file except in compliance with the
8  License.  You may obtain a copy of the License at
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10    http://www.apache.org/licenses/LICENSE-2.0
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12  Unless required by applicable law or agreed to in writing, software
13  distributed under the License is distributed on an "AS IS" BASIS,
14  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
15  implied.  See the License for the specific language governing
16  permissions and limitations under the License.
17
18 *****************************************************************************/
19
20/*****************************************************************************
21
22  main.cpp -- Main function for the dashboard controller for a
23           car. This controller contains a speedometer, two odometers (total
24           and partial distance), the driver of the car, clocks, and the
25           pulse generator. The pulses are generated by the sensors placed
26           around one of the wheel shafts. The rate of pulse generation is
27           determined by the speed of the car. The driver can start the car,
28           set its speed, reset the partial distance odometer, and stop the
29           car (which means he will stop the simulation). One of the clocks
30           is slow and the other is fast. The fast clock represents the real
31           time. The slow clock is used to control the actions of the
32           driver. The signals in this program are traced.
33
34           purpose (in terms of changes to dash7's purpose) -- Positional
35           connection method for binding the ports of modules. Example: Let m
36           be a module with ports p1 and p2. Let m_ptr be a pointer to m, and
37           let p1_arg and p2_arg be the ports that we want to bind to p1 and
38           p2 of m. Then, we can do the binding in one of the following:
39
40           m(p1_arg, p2_arg);  or (*m_ptr)(p1_arg, p2_arg);
41           m.p1(p1_arg); m.p2.bind(p2_arg); or
42           m_ptr->p1(p1_arg); m->p2.bind(p2_arg);
43
44           The output of this program is identical to that of dash6 and dash7.
45
46  Original Author: Ali Dasdan, Synopsys, Inc.
47
48 *****************************************************************************/
49
50/*****************************************************************************
51
52  MODIFICATION LOG - modifiers, enter your name, affiliation, date and
53  changes you are making here.
54
55      Name, Affiliation, Date:
56  Description of Modification:
57
58 *****************************************************************************/
59
60// $Log: main.cpp,v $
61// Revision 1.2  2011/01/07 01:20:20  acg
62//  Andy Goodrich: update for new IEEE 1666.
63//
64// Revision 1.1.1.1  2006/12/15 20:26:24  acg
65// systemc_tests-2.3
66//
67// Revision 1.5  2006/01/24 21:05:58  acg
68//  Andy Goodrich: replacement of deprecated features with their non-deprecated
69//  counterparts.
70//
71// Revision 1.4  2006/01/20 00:43:24  acg
72// Andy Goodrich: Changed over to use putenv() instead of setenv() to accommodate old versions of Solaris.
73//
74// Revision 1.3  2006/01/19 00:48:20  acg
75// Andy Goodrich: Changes for the fact signal write checking is enabled.
76//
77// Revision 1.2  2006/01/18 00:23:51  acg
78// Change over from SC_NO_WRITE_CHECK to sc_write_check_enable() call.
79//
80
81#define SC_NO_WRITE_CHECK
82#include "systemc.h"
83#include "const.h"
84#include "driver.h"
85#include "pulse.h"
86#include "speed.h"
87#include "dist.h"
88
89int
90sc_main(int argc, char *argv[])
91{
92  // Pulses for the speedometer and odometers, generated by the pulse
93  // generator.
94  sc_signal<bool> speed_pulses("speed_pulses");
95  sc_signal<bool> dist_pulses("dist_pulses");
96  // Signals for the driver's actions.
97  sc_signal<bool> reset("reset");
98  sc_signal<int>  speed("speed");
99  sc_signal<bool> start("start");
100
101  // Signals observed by the driver.
102  sc_signal<double> disp_speed("disp_speed");
103  sc_signal<double> disp_angle("disp_angle");
104  sc_signal<double> disp_total_dist("disp_total_dist");
105  sc_signal<double> disp_partial_dist("disp_partial_dist");
106
107  // Clocks.
108  sc_clock clk0("slow_clk", SLOW_CLOCK_PERIOD0, SC_NS, 0.5, 0.0, SC_NS, true);
109  sc_clock clk1("fast_clk", FAST_CLOCK_PERIOD1, SC_NS, 0.5, 0.0, SC_NS, false);
110
111  driver_mod driver("driver");
112  driver(clk0, disp_speed, disp_angle, disp_total_dist,
113         disp_partial_dist, reset, speed, start);
114
115  gen_pulse_mod gen_pulse("gen_pulse");
116  gen_pulse(clk1, start, speed, speed_pulses, dist_pulses);
117
118  speed_mod speedometer("speedometer");
119  speedometer(clk1, start, speed_pulses, disp_speed, disp_angle);
120
121  dist_mod odometers("odometers");
122  odometers.pulse(dist_pulses);
123  odometers.reset(reset);
124  odometers.start.bind(start);
125  odometers.total(disp_total_dist);
126  odometers.partial.bind(disp_partial_dist);
127
128  // Initialize signals:
129  start = false;
130
131  // Tracing:
132  // Trace file creation.
133  sc_trace_file *tf = sc_create_vcd_trace_file("dash");
134  // External signals.
135  sc_trace(tf, clk0, "slow_clk");
136  sc_trace(tf, clk1, "fast_clk");
137  sc_trace(tf, speed_pulses, "speed_pulses");
138  sc_trace(tf, dist_pulses, "dist_pulses");
139  sc_trace(tf, reset, "reset");
140  sc_trace(tf, start, "start");
141  sc_trace(tf, speed, "speed");
142  sc_trace(tf, disp_speed, "disp_speed");
143  sc_trace(tf, disp_angle, "disp_angle");
144  sc_trace(tf, disp_total_dist, "disp_total_dist");
145  sc_trace(tf, disp_partial_dist, "disp_partial_dist");
146  // Internal signals.
147  sc_trace(tf, speedometer.elapsed_time, "elapsed_time");
148  sc_trace(tf, speedometer.read_mod->raw_speed, "raw_speed");
149  sc_trace(tf, speedometer.filtered_speed, "filtered_speed");
150  sc_trace(tf, odometers.ok_for_incr, "ok_for_incr");
151  sc_trace(tf, odometers.total_dist, "total_dist");
152  sc_trace(tf, odometers.partial_dist, "partial_dist");
153
154  disp_speed = 0.0;
155  disp_angle = 0.0;
156  disp_total_dist = 0.0;
157  disp_partial_dist = 0.0;
158
159  sc_start();
160
161  return 0;
162}
163
164// End of file
165