SWT.h File Reference

Software Watchdog basic driver. More...

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Data Structures
union	SWTConfig_t
Defines
#define	TRUE   (1u)
#define	CLEAR   (0u)
#define	BITS_IN_NIBBLE   (4u)
#define	BITS_IN_BYTE   (8u)
#define	BITS_IN_32   (32u)
#define	BITS_IN_16   (16u)
#define	BYTES_IN_32   (4u)
#define	BYTES_IN_16   (2u)
#define	BIT_DEFINITION
#define	BIT0   (1u << 0u)
#define	BIT1   (1u << 1u)
#define	BIT2   (1u << 2u)
#define	BIT3   (1u << 3u)
#define	BIT4   (1u << 4u)
#define	BIT5   (1u << 5u)
#define	BIT6   (1u << 6u)
#define	BIT7   (1u << 7u)
#define	BIT8   (1u << 8u)
#define	BIT9   (1u << 9u)
#define	BIT10   (1u << 10)
#define	BIT11   (1u << 11)
#define	BIT12   (1u << 12)
#define	BIT13   (1u << 13)
#define	BIT14   (1u << 14)
#define	BIT15   (1u << 15)
#define	BIT16   (1u << 16)
#define	BIT17   (1u << 17)
#define	BIT18   (1u << 18)
#define	BIT19   (1u << 19)
#define	BIT20   (1u << 20)
#define	BIT21   (1u << 21)
#define	BIT22   (1u << 22)
#define	BIT23   (1u << 23)
#define	BIT24   (1u << 24)
#define	BIT25   (1u << 25)
#define	BIT26   (1u << 26)
#define	BIT27   (1u << 27)
#define	BIT28   (1u << 28)
#define	BIT29   (1u << 29)
#define	BIT30   (1u << 30)
#define	BIT31   (1u << 31)
#define	SWT_EN   (0x00000001u)
#define	SWT_DIS   (0x00000000u)
#define	SWT_DEBUG_EN   (0x00000002u)
#define	SWT_DEBUG_DIS   (0x00000000u)
#define	SWT_STOP_EN   (0x00000004u)
#define	SWT_STOP_DIS   (0x00000000u)
#define	SWT_USES_OSCILLATOR   (0x00000008u)
#define	SWT_SOFT_LOCK_EN   (0x00000010u)
#define	SWT_SOFT_LOCK_DIS   (0x00000000u)
#define	SWT_HARD_LOCK_EN   (0x00000020u)
#define	SWT_HARD_LOCK_DIS   (0x00000000u)
#define	SWT_GENERATE_ISR_EN   (0x00000040u)
#define	SWT_GENERATE_ISR_DIS   (0x00000000u)
#define	SWT_WINDOWED_MODE_EN   (0x00000080u)
#define	SWT_WINDOWED_MODE_DIS   (0x00000000u)
#define	SWT_RESET_WHEN_INVALID   (0x00000100u)
#define	SWT_IVOR_WHEN_INVALID   (0x00000000u)
#define	SWT_RANDOM_KEY_EN   (0x00000200u)
#define	SWT_RANDOM_KEY_DIS   (0x00000000u)
#define	SWT_DEFAULT_MAP_SETTING   (0xFF000000u)
#define	FEED_WATCHDOG()
#define	SWT_CLEAR_SOFT_LOCK()
#define	SWT_TIME_OUT_COUNTS(xx)   (xx)
#define	SWT_WINDOW_COUNTS(xx)   (xx)
Enumerations
enum	SWT_LOCK_STATUS { SWT_UNLOCKED = 0u, SWT_SOFT_LOCKED, SWT_HARD_LOCKED }
Functions
uint16_t	u16fnConfigSoftwareWatchDog (const SWTConfig_t *ptMySWTConfig)
	Configures watchdog for operation according to passed argument.

---

Detailed Description

Software Watchdog basic driver.

Copyright (c) 2011 Freescale Semiconductor Freescale Confidential Proprietary

Author:

Freescale Semiconductor

SASD Automotive

R11515

Version:

Date:

Warning:

(If needed)

History:

---

Define Documentation

#define FEED_WATCHDOG

(

)

Value:

{ \
  SWT.SR.R = (uint32_t)0xA602u; \
  SWT.SR.R = (uint32_t)0xB480u; \
}

#define SWT_CLEAR_SOFT_LOCK

(

)

Value:

{ \
  SWT.SR.R = (uint32_t)0xC520u; \
  SWT.SR.R = (uint32_t)0xD928u; \
}

---

Function Documentation

uint16_t u16fnConfigSoftwareWatchDog

(

const SWTConfig_t *

ptMySWTConfig

)

Configures watchdog for operation according to passed argument.

Parameters:

ptMySWTConfig,:

pointer to configuration as described by SWTConfig_t

Returns:

SWT_UNLOCKED if watchdog is unlocked; SWT_SOFT_LOCKED if locked by software; SWT_HARD_LOCKED if locked by hardware.