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
|
/*
* 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"
/*******************************************************************************
* Code
******************************************************************************/
/*FUNCTION**********************************************************************
*
* Function Name : WDOG_Enable
* Description : Configure WDOG funtions, call once only
*
*END**************************************************************************/
void WDOG_Enable(WDOG_Type *base, uint8_t timeout)
{
uint16_t wcr = base->WCR & (~WDOG_WCR_WT_MASK);
base->WCR = wcr | WDOG_WCR_WT(timeout) | WDOG_WCR_WDE_MASK;
}
/*FUNCTION**********************************************************************
*
* Function Name : WDOG_Reset
* Description : Assert WDOG reset signal
*
*END**************************************************************************/
void WDOG_Reset(WDOG_Type *base, bool wda, bool srs)
{
uint16_t wcr = base->WCR;
if (wda)
wcr &= ~WDOG_WCR_WDA_MASK;
if (srs)
wcr &= ~WDOG_WCR_SRS_MASK;
base->WCR = wcr;
}
/*FUNCTION**********************************************************************
*
* Function Name : WDOG_Refresh
* Description : Refresh the WDOG to prevent timeout
*
*END**************************************************************************/
void WDOG_Refresh(WDOG_Type *base)
{
base->WSR = 0x5555;
base->WSR = 0xAAAA;
}
/*******************************************************************************
* EOF
******************************************************************************/
|
