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TARGET_LPC546XX/TOOLCHAIN_IAR/fsl_wwdt.h@172:65be27845400, 2019-02-20 (annotated)
- Committer:
- AnnaBridge
- Date:
- Wed Feb 20 20:53:29 2019 +0000
- Revision:
- 172:65be27845400
- Parent:
- 171:3a7713b1edbc
mbed library release version 165
Who changed what in which revision?
User | Revision | Line number | New contents of line |
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AnnaBridge | 171:3a7713b1edbc | 1 | /* |
AnnaBridge | 171:3a7713b1edbc | 2 | * The Clear BSD License |
AnnaBridge | 171:3a7713b1edbc | 3 | * Copyright (c) 2016, Freescale Semiconductor, Inc. |
AnnaBridge | 171:3a7713b1edbc | 4 | * Copyright 2016-2017 NXP |
AnnaBridge | 171:3a7713b1edbc | 5 | * All rights reserved. |
AnnaBridge | 171:3a7713b1edbc | 6 | * |
AnnaBridge | 171:3a7713b1edbc | 7 | * Redistribution and use in source and binary forms, with or without modification, |
AnnaBridge | 171:3a7713b1edbc | 8 | * are permitted (subject to the limitations in the disclaimer below) provided |
AnnaBridge | 171:3a7713b1edbc | 9 | * that the following conditions are met: |
AnnaBridge | 171:3a7713b1edbc | 10 | * |
AnnaBridge | 171:3a7713b1edbc | 11 | * o Redistributions of source code must retain the above copyright notice, this list |
AnnaBridge | 171:3a7713b1edbc | 12 | * of conditions and the following disclaimer. |
AnnaBridge | 171:3a7713b1edbc | 13 | * |
AnnaBridge | 171:3a7713b1edbc | 14 | * o Redistributions in binary form must reproduce the above copyright notice, this |
AnnaBridge | 171:3a7713b1edbc | 15 | * list of conditions and the following disclaimer in the documentation and/or |
AnnaBridge | 171:3a7713b1edbc | 16 | * other materials provided with the distribution. |
AnnaBridge | 171:3a7713b1edbc | 17 | * |
AnnaBridge | 171:3a7713b1edbc | 18 | * o Neither the name of the copyright holder nor the names of its |
AnnaBridge | 171:3a7713b1edbc | 19 | * contributors may be used to endorse or promote products derived from this |
AnnaBridge | 171:3a7713b1edbc | 20 | * software without specific prior written permission. |
AnnaBridge | 171:3a7713b1edbc | 21 | * |
AnnaBridge | 171:3a7713b1edbc | 22 | * NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED BY THIS LICENSE. |
AnnaBridge | 171:3a7713b1edbc | 23 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND |
AnnaBridge | 171:3a7713b1edbc | 24 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED |
AnnaBridge | 171:3a7713b1edbc | 25 | * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
AnnaBridge | 171:3a7713b1edbc | 26 | * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR |
AnnaBridge | 171:3a7713b1edbc | 27 | * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES |
AnnaBridge | 171:3a7713b1edbc | 28 | * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
AnnaBridge | 171:3a7713b1edbc | 29 | * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON |
AnnaBridge | 171:3a7713b1edbc | 30 | * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
AnnaBridge | 171:3a7713b1edbc | 31 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS |
AnnaBridge | 171:3a7713b1edbc | 32 | * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
AnnaBridge | 171:3a7713b1edbc | 33 | */ |
AnnaBridge | 171:3a7713b1edbc | 34 | #ifndef _FSL_WWDT_H_ |
AnnaBridge | 171:3a7713b1edbc | 35 | #define _FSL_WWDT_H_ |
AnnaBridge | 171:3a7713b1edbc | 36 | |
AnnaBridge | 171:3a7713b1edbc | 37 | #include "fsl_common.h" |
AnnaBridge | 171:3a7713b1edbc | 38 | |
AnnaBridge | 171:3a7713b1edbc | 39 | /*! |
AnnaBridge | 171:3a7713b1edbc | 40 | * @addtogroup wwdt |
AnnaBridge | 171:3a7713b1edbc | 41 | * @{ |
AnnaBridge | 171:3a7713b1edbc | 42 | */ |
AnnaBridge | 171:3a7713b1edbc | 43 | |
AnnaBridge | 171:3a7713b1edbc | 44 | /*! @file */ |
AnnaBridge | 171:3a7713b1edbc | 45 | |
AnnaBridge | 171:3a7713b1edbc | 46 | /******************************************************************************* |
AnnaBridge | 171:3a7713b1edbc | 47 | * Definitions |
AnnaBridge | 171:3a7713b1edbc | 48 | *******************************************************************************/ |
AnnaBridge | 171:3a7713b1edbc | 49 | |
AnnaBridge | 171:3a7713b1edbc | 50 | /*! @name Driver version */ |
AnnaBridge | 171:3a7713b1edbc | 51 | /*@{*/ |
AnnaBridge | 171:3a7713b1edbc | 52 | /*! @brief Defines WWDT driver version 2.0.0. */ |
AnnaBridge | 171:3a7713b1edbc | 53 | #define FSL_WWDT_DRIVER_VERSION (MAKE_VERSION(2, 0, 0)) |
AnnaBridge | 171:3a7713b1edbc | 54 | /*@}*/ |
AnnaBridge | 171:3a7713b1edbc | 55 | |
AnnaBridge | 171:3a7713b1edbc | 56 | /*! @name Refresh sequence */ |
AnnaBridge | 171:3a7713b1edbc | 57 | /*@{*/ |
AnnaBridge | 171:3a7713b1edbc | 58 | #define WWDT_FIRST_WORD_OF_REFRESH (0xAAU) /*!< First word of refresh sequence */ |
AnnaBridge | 171:3a7713b1edbc | 59 | #define WWDT_SECOND_WORD_OF_REFRESH (0x55U) /*!< Second word of refresh sequence */ |
AnnaBridge | 171:3a7713b1edbc | 60 | /*@}*/ |
AnnaBridge | 171:3a7713b1edbc | 61 | |
AnnaBridge | 171:3a7713b1edbc | 62 | /*! @brief Describes WWDT configuration structure. */ |
AnnaBridge | 171:3a7713b1edbc | 63 | typedef struct _wwdt_config |
AnnaBridge | 171:3a7713b1edbc | 64 | { |
AnnaBridge | 171:3a7713b1edbc | 65 | bool enableWwdt; /*!< Enables or disables WWDT */ |
AnnaBridge | 171:3a7713b1edbc | 66 | bool enableWatchdogReset; /*!< true: Watchdog timeout will cause a chip reset |
AnnaBridge | 171:3a7713b1edbc | 67 | false: Watchdog timeout will not cause a chip reset */ |
AnnaBridge | 171:3a7713b1edbc | 68 | bool enableWatchdogProtect; /*!< true: Enable watchdog protect i.e timeout value can only be |
AnnaBridge | 171:3a7713b1edbc | 69 | changed after counter is below warning & window values |
AnnaBridge | 171:3a7713b1edbc | 70 | false: Disable watchdog protect; timeout value can be changed |
AnnaBridge | 171:3a7713b1edbc | 71 | at any time */ |
AnnaBridge | 171:3a7713b1edbc | 72 | bool enableLockOscillator; /*!< true: Disabling or powering down the watchdog oscillator is prevented |
AnnaBridge | 171:3a7713b1edbc | 73 | Once set, this bit can only be cleared by a reset |
AnnaBridge | 171:3a7713b1edbc | 74 | false: Do not lock oscillator */ |
AnnaBridge | 171:3a7713b1edbc | 75 | uint32_t windowValue; /*!< Window value, set this to 0xFFFFFF if windowing is not in effect */ |
AnnaBridge | 171:3a7713b1edbc | 76 | uint32_t timeoutValue; /*!< Timeout value */ |
AnnaBridge | 171:3a7713b1edbc | 77 | uint32_t warningValue; /*!< Watchdog time counter value that will generate a |
AnnaBridge | 171:3a7713b1edbc | 78 | warning interrupt. Set this to 0 for no warning */ |
AnnaBridge | 171:3a7713b1edbc | 79 | |
AnnaBridge | 171:3a7713b1edbc | 80 | } wwdt_config_t; |
AnnaBridge | 171:3a7713b1edbc | 81 | |
AnnaBridge | 171:3a7713b1edbc | 82 | /*! |
AnnaBridge | 171:3a7713b1edbc | 83 | * @brief WWDT status flags. |
AnnaBridge | 171:3a7713b1edbc | 84 | * |
AnnaBridge | 171:3a7713b1edbc | 85 | * This structure contains the WWDT status flags for use in the WWDT functions. |
AnnaBridge | 171:3a7713b1edbc | 86 | */ |
AnnaBridge | 171:3a7713b1edbc | 87 | enum _wwdt_status_flags_t |
AnnaBridge | 171:3a7713b1edbc | 88 | { |
AnnaBridge | 171:3a7713b1edbc | 89 | kWWDT_TimeoutFlag = WWDT_MOD_WDTOF_MASK, /*!< Time-out flag, set when the timer times out */ |
AnnaBridge | 171:3a7713b1edbc | 90 | kWWDT_WarningFlag = WWDT_MOD_WDINT_MASK /*!< Warning interrupt flag, set when timer is below the value WDWARNINT */ |
AnnaBridge | 171:3a7713b1edbc | 91 | }; |
AnnaBridge | 171:3a7713b1edbc | 92 | |
AnnaBridge | 171:3a7713b1edbc | 93 | /******************************************************************************* |
AnnaBridge | 171:3a7713b1edbc | 94 | * API |
AnnaBridge | 171:3a7713b1edbc | 95 | *******************************************************************************/ |
AnnaBridge | 171:3a7713b1edbc | 96 | |
AnnaBridge | 171:3a7713b1edbc | 97 | #if defined(__cplusplus) |
AnnaBridge | 171:3a7713b1edbc | 98 | extern "C" { |
AnnaBridge | 171:3a7713b1edbc | 99 | #endif /* __cplusplus */ |
AnnaBridge | 171:3a7713b1edbc | 100 | |
AnnaBridge | 171:3a7713b1edbc | 101 | /*! |
AnnaBridge | 171:3a7713b1edbc | 102 | * @name WWDT Initialization and De-initialization |
AnnaBridge | 171:3a7713b1edbc | 103 | * @{ |
AnnaBridge | 171:3a7713b1edbc | 104 | */ |
AnnaBridge | 171:3a7713b1edbc | 105 | |
AnnaBridge | 171:3a7713b1edbc | 106 | /*! |
AnnaBridge | 171:3a7713b1edbc | 107 | * @brief Initializes WWDT configure sturcture. |
AnnaBridge | 171:3a7713b1edbc | 108 | * |
AnnaBridge | 171:3a7713b1edbc | 109 | * This function initializes the WWDT configure structure to default value. The default |
AnnaBridge | 171:3a7713b1edbc | 110 | * value are: |
AnnaBridge | 171:3a7713b1edbc | 111 | * @code |
AnnaBridge | 171:3a7713b1edbc | 112 | * config->enableWwdt = true; |
AnnaBridge | 171:3a7713b1edbc | 113 | * config->enableWatchdogReset = false; |
AnnaBridge | 171:3a7713b1edbc | 114 | * config->enableWatchdogProtect = false; |
AnnaBridge | 171:3a7713b1edbc | 115 | * config->enableLockOscillator = false; |
AnnaBridge | 171:3a7713b1edbc | 116 | * config->windowValue = 0xFFFFFFU; |
AnnaBridge | 171:3a7713b1edbc | 117 | * config->timeoutValue = 0xFFFFFFU; |
AnnaBridge | 171:3a7713b1edbc | 118 | * config->warningValue = 0; |
AnnaBridge | 171:3a7713b1edbc | 119 | * @endcode |
AnnaBridge | 171:3a7713b1edbc | 120 | * |
AnnaBridge | 171:3a7713b1edbc | 121 | * @param config Pointer to WWDT config structure. |
AnnaBridge | 171:3a7713b1edbc | 122 | * @see wwdt_config_t |
AnnaBridge | 171:3a7713b1edbc | 123 | */ |
AnnaBridge | 171:3a7713b1edbc | 124 | void WWDT_GetDefaultConfig(wwdt_config_t *config); |
AnnaBridge | 171:3a7713b1edbc | 125 | |
AnnaBridge | 171:3a7713b1edbc | 126 | /*! |
AnnaBridge | 171:3a7713b1edbc | 127 | * @brief Initializes the WWDT. |
AnnaBridge | 171:3a7713b1edbc | 128 | * |
AnnaBridge | 171:3a7713b1edbc | 129 | * This function initializes the WWDT. When called, the WWDT runs according to the configuration. |
AnnaBridge | 171:3a7713b1edbc | 130 | * |
AnnaBridge | 171:3a7713b1edbc | 131 | * Example: |
AnnaBridge | 171:3a7713b1edbc | 132 | * @code |
AnnaBridge | 171:3a7713b1edbc | 133 | * wwdt_config_t config; |
AnnaBridge | 171:3a7713b1edbc | 134 | * WWDT_GetDefaultConfig(&config); |
AnnaBridge | 171:3a7713b1edbc | 135 | * config.timeoutValue = 0x7ffU; |
AnnaBridge | 171:3a7713b1edbc | 136 | * WWDT_Init(wwdt_base,&config); |
AnnaBridge | 171:3a7713b1edbc | 137 | * @endcode |
AnnaBridge | 171:3a7713b1edbc | 138 | * |
AnnaBridge | 171:3a7713b1edbc | 139 | * @param base WWDT peripheral base address |
AnnaBridge | 171:3a7713b1edbc | 140 | * @param config The configuration of WWDT |
AnnaBridge | 171:3a7713b1edbc | 141 | */ |
AnnaBridge | 171:3a7713b1edbc | 142 | void WWDT_Init(WWDT_Type *base, const wwdt_config_t *config); |
AnnaBridge | 171:3a7713b1edbc | 143 | |
AnnaBridge | 171:3a7713b1edbc | 144 | /*! |
AnnaBridge | 171:3a7713b1edbc | 145 | * @brief Shuts down the WWDT. |
AnnaBridge | 171:3a7713b1edbc | 146 | * |
AnnaBridge | 171:3a7713b1edbc | 147 | * This function shuts down the WWDT. |
AnnaBridge | 171:3a7713b1edbc | 148 | * |
AnnaBridge | 171:3a7713b1edbc | 149 | * @param base WWDT peripheral base address |
AnnaBridge | 171:3a7713b1edbc | 150 | */ |
AnnaBridge | 171:3a7713b1edbc | 151 | void WWDT_Deinit(WWDT_Type *base); |
AnnaBridge | 171:3a7713b1edbc | 152 | |
AnnaBridge | 171:3a7713b1edbc | 153 | /* @} */ |
AnnaBridge | 171:3a7713b1edbc | 154 | |
AnnaBridge | 171:3a7713b1edbc | 155 | /*! |
AnnaBridge | 171:3a7713b1edbc | 156 | * @name WWDT Functional Operation |
AnnaBridge | 171:3a7713b1edbc | 157 | * @{ |
AnnaBridge | 171:3a7713b1edbc | 158 | */ |
AnnaBridge | 171:3a7713b1edbc | 159 | |
AnnaBridge | 171:3a7713b1edbc | 160 | /*! |
AnnaBridge | 171:3a7713b1edbc | 161 | * @brief Enables the WWDT module. |
AnnaBridge | 171:3a7713b1edbc | 162 | * |
AnnaBridge | 171:3a7713b1edbc | 163 | * This function write value into WWDT_MOD register to enable the WWDT, it is a write-once bit; |
AnnaBridge | 171:3a7713b1edbc | 164 | * once this bit is set to one and a watchdog feed is performed, the watchdog timer will run |
AnnaBridge | 171:3a7713b1edbc | 165 | * permanently. |
AnnaBridge | 171:3a7713b1edbc | 166 | * |
AnnaBridge | 171:3a7713b1edbc | 167 | * @param base WWDT peripheral base address |
AnnaBridge | 171:3a7713b1edbc | 168 | */ |
AnnaBridge | 171:3a7713b1edbc | 169 | static inline void WWDT_Enable(WWDT_Type *base) |
AnnaBridge | 171:3a7713b1edbc | 170 | { |
AnnaBridge | 171:3a7713b1edbc | 171 | base->MOD |= WWDT_MOD_WDEN_MASK; |
AnnaBridge | 171:3a7713b1edbc | 172 | } |
AnnaBridge | 171:3a7713b1edbc | 173 | |
AnnaBridge | 171:3a7713b1edbc | 174 | /*! |
AnnaBridge | 171:3a7713b1edbc | 175 | * @brief Disables the WWDT module. |
AnnaBridge | 171:3a7713b1edbc | 176 | * |
AnnaBridge | 171:3a7713b1edbc | 177 | * This function write value into WWDT_MOD register to disable the WWDT. |
AnnaBridge | 171:3a7713b1edbc | 178 | * |
AnnaBridge | 171:3a7713b1edbc | 179 | * @param base WWDT peripheral base address |
AnnaBridge | 171:3a7713b1edbc | 180 | */ |
AnnaBridge | 171:3a7713b1edbc | 181 | static inline void WWDT_Disable(WWDT_Type *base) |
AnnaBridge | 171:3a7713b1edbc | 182 | { |
AnnaBridge | 171:3a7713b1edbc | 183 | base->MOD &= ~WWDT_MOD_WDEN_MASK; |
AnnaBridge | 171:3a7713b1edbc | 184 | } |
AnnaBridge | 171:3a7713b1edbc | 185 | |
AnnaBridge | 171:3a7713b1edbc | 186 | /*! |
AnnaBridge | 171:3a7713b1edbc | 187 | * @brief Gets all WWDT status flags. |
AnnaBridge | 171:3a7713b1edbc | 188 | * |
AnnaBridge | 171:3a7713b1edbc | 189 | * This function gets all status flags. |
AnnaBridge | 171:3a7713b1edbc | 190 | * |
AnnaBridge | 171:3a7713b1edbc | 191 | * Example for getting Timeout Flag: |
AnnaBridge | 171:3a7713b1edbc | 192 | * @code |
AnnaBridge | 171:3a7713b1edbc | 193 | * uint32_t status; |
AnnaBridge | 171:3a7713b1edbc | 194 | * status = WWDT_GetStatusFlags(wwdt_base) & kWWDT_TimeoutFlag; |
AnnaBridge | 171:3a7713b1edbc | 195 | * @endcode |
AnnaBridge | 171:3a7713b1edbc | 196 | * @param base WWDT peripheral base address |
AnnaBridge | 171:3a7713b1edbc | 197 | * @return The status flags. This is the logical OR of members of the |
AnnaBridge | 171:3a7713b1edbc | 198 | * enumeration ::_wwdt_status_flags_t |
AnnaBridge | 171:3a7713b1edbc | 199 | */ |
AnnaBridge | 171:3a7713b1edbc | 200 | static inline uint32_t WWDT_GetStatusFlags(WWDT_Type *base) |
AnnaBridge | 171:3a7713b1edbc | 201 | { |
AnnaBridge | 171:3a7713b1edbc | 202 | return (base->MOD & (WWDT_MOD_WDTOF_MASK | WWDT_MOD_WDINT_MASK)); |
AnnaBridge | 171:3a7713b1edbc | 203 | } |
AnnaBridge | 171:3a7713b1edbc | 204 | |
AnnaBridge | 171:3a7713b1edbc | 205 | /*! |
AnnaBridge | 171:3a7713b1edbc | 206 | * @brief Clear WWDT flag. |
AnnaBridge | 171:3a7713b1edbc | 207 | * |
AnnaBridge | 171:3a7713b1edbc | 208 | * This function clears WWDT status flag. |
AnnaBridge | 171:3a7713b1edbc | 209 | * |
AnnaBridge | 171:3a7713b1edbc | 210 | * Example for clearing warning flag: |
AnnaBridge | 171:3a7713b1edbc | 211 | * @code |
AnnaBridge | 171:3a7713b1edbc | 212 | * WWDT_ClearStatusFlags(wwdt_base, kWWDT_WarningFlag); |
AnnaBridge | 171:3a7713b1edbc | 213 | * @endcode |
AnnaBridge | 171:3a7713b1edbc | 214 | * @param base WWDT peripheral base address |
AnnaBridge | 171:3a7713b1edbc | 215 | * @param mask The status flags to clear. This is a logical OR of members of the |
AnnaBridge | 171:3a7713b1edbc | 216 | * enumeration ::_wwdt_status_flags_t |
AnnaBridge | 171:3a7713b1edbc | 217 | */ |
AnnaBridge | 171:3a7713b1edbc | 218 | void WWDT_ClearStatusFlags(WWDT_Type *base, uint32_t mask); |
AnnaBridge | 171:3a7713b1edbc | 219 | |
AnnaBridge | 171:3a7713b1edbc | 220 | /*! |
AnnaBridge | 171:3a7713b1edbc | 221 | * @brief Set the WWDT warning value. |
AnnaBridge | 171:3a7713b1edbc | 222 | * |
AnnaBridge | 171:3a7713b1edbc | 223 | * The WDWARNINT register determines the watchdog timer counter value that will generate a watchdog |
AnnaBridge | 171:3a7713b1edbc | 224 | * interrupt. When the watchdog timer counter is no longer greater than the value defined by |
AnnaBridge | 171:3a7713b1edbc | 225 | * WARNINT, an interrupt will be generated after the subsequent WDCLK. |
AnnaBridge | 171:3a7713b1edbc | 226 | * |
AnnaBridge | 171:3a7713b1edbc | 227 | * @param base WWDT peripheral base address |
AnnaBridge | 171:3a7713b1edbc | 228 | * @param warningValue WWDT warning value. |
AnnaBridge | 171:3a7713b1edbc | 229 | */ |
AnnaBridge | 171:3a7713b1edbc | 230 | static inline void WWDT_SetWarningValue(WWDT_Type *base, uint32_t warningValue) |
AnnaBridge | 171:3a7713b1edbc | 231 | { |
AnnaBridge | 171:3a7713b1edbc | 232 | base->WARNINT = WWDT_WARNINT_WARNINT(warningValue); |
AnnaBridge | 171:3a7713b1edbc | 233 | } |
AnnaBridge | 171:3a7713b1edbc | 234 | |
AnnaBridge | 171:3a7713b1edbc | 235 | /*! |
AnnaBridge | 171:3a7713b1edbc | 236 | * @brief Set the WWDT timeout value. |
AnnaBridge | 171:3a7713b1edbc | 237 | * |
AnnaBridge | 171:3a7713b1edbc | 238 | * This function sets the timeout value. Every time a feed sequence occurs the value in the TC |
AnnaBridge | 171:3a7713b1edbc | 239 | * register is loaded into the Watchdog timer. Writing a value below 0xFF will cause 0xFF to be |
AnnaBridge | 171:3a7713b1edbc | 240 | * loaded into the TC register. Thus the minimum time-out interval is TWDCLK*256*4. |
AnnaBridge | 171:3a7713b1edbc | 241 | * If enableWatchdogProtect flag is true in wwdt_config_t config structure, any attempt to change |
AnnaBridge | 171:3a7713b1edbc | 242 | * the timeout value before the watchdog counter is below the warning and window values |
AnnaBridge | 171:3a7713b1edbc | 243 | * will cause a watchdog reset and set the WDTOF flag. |
AnnaBridge | 171:3a7713b1edbc | 244 | * |
AnnaBridge | 171:3a7713b1edbc | 245 | * @param base WWDT peripheral base address |
AnnaBridge | 171:3a7713b1edbc | 246 | * @param timeoutCount WWDT timeout value, count of WWDT clock tick. |
AnnaBridge | 171:3a7713b1edbc | 247 | */ |
AnnaBridge | 171:3a7713b1edbc | 248 | static inline void WWDT_SetTimeoutValue(WWDT_Type *base, uint32_t timeoutCount) |
AnnaBridge | 171:3a7713b1edbc | 249 | { |
AnnaBridge | 171:3a7713b1edbc | 250 | base->TC = WWDT_TC_COUNT(timeoutCount); |
AnnaBridge | 171:3a7713b1edbc | 251 | } |
AnnaBridge | 171:3a7713b1edbc | 252 | |
AnnaBridge | 171:3a7713b1edbc | 253 | /*! |
AnnaBridge | 171:3a7713b1edbc | 254 | * @brief Sets the WWDT window value. |
AnnaBridge | 171:3a7713b1edbc | 255 | * |
AnnaBridge | 171:3a7713b1edbc | 256 | * The WINDOW register determines the highest TV value allowed when a watchdog feed is performed. |
AnnaBridge | 171:3a7713b1edbc | 257 | * If a feed sequence occurs when timer value is greater than the value in WINDOW, a watchdog |
AnnaBridge | 171:3a7713b1edbc | 258 | * event will occur. To disable windowing, set windowValue to 0xFFFFFF (maximum possible timer |
AnnaBridge | 171:3a7713b1edbc | 259 | * value) so windowing is not in effect. |
AnnaBridge | 171:3a7713b1edbc | 260 | * |
AnnaBridge | 171:3a7713b1edbc | 261 | * @param base WWDT peripheral base address |
AnnaBridge | 171:3a7713b1edbc | 262 | * @param windowValue WWDT window value. |
AnnaBridge | 171:3a7713b1edbc | 263 | */ |
AnnaBridge | 171:3a7713b1edbc | 264 | static inline void WWDT_SetWindowValue(WWDT_Type *base, uint32_t windowValue) |
AnnaBridge | 171:3a7713b1edbc | 265 | { |
AnnaBridge | 171:3a7713b1edbc | 266 | base->WINDOW = WWDT_WINDOW_WINDOW(windowValue); |
AnnaBridge | 171:3a7713b1edbc | 267 | } |
AnnaBridge | 171:3a7713b1edbc | 268 | |
AnnaBridge | 171:3a7713b1edbc | 269 | /*! |
AnnaBridge | 171:3a7713b1edbc | 270 | * @brief Refreshes the WWDT timer. |
AnnaBridge | 171:3a7713b1edbc | 271 | * |
AnnaBridge | 171:3a7713b1edbc | 272 | * This function feeds the WWDT. |
AnnaBridge | 171:3a7713b1edbc | 273 | * This function should be called before WWDT timer is in timeout. Otherwise, a reset is asserted. |
AnnaBridge | 171:3a7713b1edbc | 274 | * |
AnnaBridge | 171:3a7713b1edbc | 275 | * @param base WWDT peripheral base address |
AnnaBridge | 171:3a7713b1edbc | 276 | */ |
AnnaBridge | 171:3a7713b1edbc | 277 | void WWDT_Refresh(WWDT_Type *base); |
AnnaBridge | 171:3a7713b1edbc | 278 | |
AnnaBridge | 171:3a7713b1edbc | 279 | /*@}*/ |
AnnaBridge | 171:3a7713b1edbc | 280 | |
AnnaBridge | 171:3a7713b1edbc | 281 | #if defined(__cplusplus) |
AnnaBridge | 171:3a7713b1edbc | 282 | } |
AnnaBridge | 171:3a7713b1edbc | 283 | #endif /* __cplusplus */ |
AnnaBridge | 171:3a7713b1edbc | 284 | |
AnnaBridge | 171:3a7713b1edbc | 285 | /*! @}*/ |
AnnaBridge | 171:3a7713b1edbc | 286 | |
AnnaBridge | 171:3a7713b1edbc | 287 | #endif /* _FSL_WWDT_H_ */ |