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
|
/*
* Copyright (c) 2015, Freescale Semiconductor, Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* o Redistributions of source code must retain the above copyright notice, this list
* of conditions and the following disclaimer.
*
* o Redistributions in binary form must reproduce the above copyright notice, this
* list of conditions and the following disclaimer in the documentation and/or
* other materials provided with the distribution.
*
* o Neither the name of Freescale Semiconductor, Inc. nor the names of its
* contributors may be used to endorse or promote products derived from this
* software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "wdog_imx.h"
#include "board.h"
#include "debug_console_imx.h"
/* This case will cause M4 reset after 5.5 seconds */
static uint32_t num = 5;
int main(void)
{
wdog_mode_config_t config = {
.wdw = true, /*!< true: suspend in low power wait, false: not suspend */
.wdt = true, /*!< true: assert WDOG_B when timeout, false: not assert WDOG_B */
.wdbg = true, /*!< true: suspend in debug mode, false: not suspend */
.wdzst = true /*!< true: suspend in doze and stop mode, false: not suspend */
};
hardware_init();
WDOG_Init(BOARD_WDOG_BASEADDR, &config);
/* Enable WDOG interrupt 0.5 second before WDOG timeout */
NVIC_SetPriority(BOARD_WDOG_IRQ_NUM, 3);
NVIC_EnableIRQ(BOARD_WDOG_IRQ_NUM);
WDOG_EnableInt(BOARD_WDOG_BASEADDR, 1);
PRINTF("WDOG with timeout 1.5 seconds will now start\n\r");
/* Enable WDOG with timeout 1.5 second */
WDOG_Enable(BOARD_WDOG_BASEADDR, 2);
while (true)
{
__WFI();
PRINTF("WDOG was refreshed %d\n\r", num);
if (num == 0)
PRINTF("Counter down to 0, WDOG is starved now...\n\r", num);
}
}
void BOARD_WDOG_HANDLER()
{
WDOG_ClearStatusFlag(BOARD_WDOG_BASEADDR);
if (--num)
WDOG_Refresh(BOARD_WDOG_BASEADDR);
}
/*******************************************************************************
* EOF
******************************************************************************/
|