1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
|
/*
ChibiOS/RT - Copyright (C) 2006,2007,2008,2009,2010,2011 Giovanni Di Sirio.
This file is part of ChibiOS/RT.
ChibiOS/RT is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
ChibiOS/RT is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
---
A special exception to the GPL can be applied should you wish to distribute
a combined work that includes ChibiOS/RT, without being obliged to provide
the source code for any proprietary components. See the file exception.txt
for full details of how and when the exception can be applied.
*/
#include "ch.h"
#if !defined(SYSTEM_CLOCK)
#define SYSTEM_CLOCK 8000000
#endif
static uint32_t seconds_counter;
static uint32_t minutes_counter;
/*
* This is a periodic thread that does absolutely nothing except increasing
* the seconds counter.
*/
static WORKING_AREA(waThread1, 128);
static msg_t Thread1(void *arg) {
(void)arg;
while (TRUE) {
chThdSleepMilliseconds(1000);
seconds_counter++;
}
}
/*
* Application entry point.
*/
int main(void) {
/**
* Hardware initialization, in this simple demo just the systick timer is
* initialized.
*/
STBase->RVR = SYSTEM_CLOCK / CH_FREQUENCY - 1;
STBase->CVR = 0;
STBase->CSR = CLKSOURCE_CORE_BITS | ENABLE_ON_BITS | TICKINT_ENABLED_BITS;
/*
* System initializations.
* - Kernel initialization, the main() function becomes a thread and the
* RTOS is active.
*/
chSysInit();
/*
* Creates the example thread.
*/
chThdCreateStatic(waThread1, sizeof(waThread1), NORMALPRIO, Thread1, NULL);
/*
* Normal main() thread activity, in this demo it does nothing except
* increasing the minutes counter.
*/
while (TRUE) {
chThdSleepSeconds(60);
minutes_counter++;
}
}
|
