mbed official / mbed-dev

mbed library sources. Supersedes mbed-src.

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targets/TARGET_STM/TARGET_STM32F4/device/stm32f4xx_ll_wwdg.h@182:a56a73fd2a6f, 2018-03-20 (annotated)

Committer:
AnnaBridge
Date:
Tue Mar 20 16:56:18 2018 +0000
Revision:
182:a56a73fd2a6f
Parent:
167:e84263d55307 
mbed-dev library. Release version 160

Who changed what in which revision?

UserRevisionLine numberNew contents of line
AnnaBridge 167:e84263d55307 1 /**
AnnaBridge 167:e84263d55307 2 ******************************************************************************
AnnaBridge 167:e84263d55307 3 * @file stm32f4xx_ll_wwdg.h
AnnaBridge 167:e84263d55307 4 * @author MCD Application Team
AnnaBridge 167:e84263d55307 5 * @brief Header file of WWDG LL module.
AnnaBridge 167:e84263d55307 6 ******************************************************************************
AnnaBridge 167:e84263d55307 7 * @attention
AnnaBridge 167:e84263d55307 8 *
AnnaBridge 167:e84263d55307 9 * <h2><center>&copy; COPYRIGHT(c) 2017 STMicroelectronics</center></h2>
AnnaBridge 167:e84263d55307 10 *
AnnaBridge 167:e84263d55307 11 * Redistribution and use in source and binary forms, with or without modification,
AnnaBridge 167:e84263d55307 12 * are permitted provided that the following conditions are met:
AnnaBridge 167:e84263d55307 13 * 1. Redistributions of source code must retain the above copyright notice,
AnnaBridge 167:e84263d55307 14 * this list of conditions and the following disclaimer.
AnnaBridge 167:e84263d55307 15 * 2. Redistributions in binary form must reproduce the above copyright notice,
AnnaBridge 167:e84263d55307 16 * this list of conditions and the following disclaimer in the documentation
AnnaBridge 167:e84263d55307 17 * and/or other materials provided with the distribution.
AnnaBridge 167:e84263d55307 18 * 3. Neither the name of STMicroelectronics nor the names of its contributors
AnnaBridge 167:e84263d55307 19 * may be used to endorse or promote products derived from this software
AnnaBridge 167:e84263d55307 20 * without specific prior written permission.
AnnaBridge 167:e84263d55307 21 *
AnnaBridge 167:e84263d55307 22 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AnnaBridge 167:e84263d55307 23 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
AnnaBridge 167:e84263d55307 24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
AnnaBridge 167:e84263d55307 25 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
AnnaBridge 167:e84263d55307 26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
AnnaBridge 167:e84263d55307 27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
AnnaBridge 167:e84263d55307 28 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
AnnaBridge 167:e84263d55307 29 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
AnnaBridge 167:e84263d55307 30 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
AnnaBridge 167:e84263d55307 31 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
AnnaBridge 167:e84263d55307 32 *
AnnaBridge 167:e84263d55307 33 ******************************************************************************
AnnaBridge 167:e84263d55307 34 */
AnnaBridge 167:e84263d55307 35
AnnaBridge 167:e84263d55307 36 /* Define to prevent recursive inclusion -------------------------------------*/
AnnaBridge 167:e84263d55307 37 #ifndef __STM32F4xx_LL_WWDG_H
AnnaBridge 167:e84263d55307 38 #define __STM32F4xx_LL_WWDG_H
AnnaBridge 167:e84263d55307 39
AnnaBridge 167:e84263d55307 40 #ifdef __cplusplus
AnnaBridge 167:e84263d55307 41 extern "C" {
AnnaBridge 167:e84263d55307 42 #endif
AnnaBridge 167:e84263d55307 43
AnnaBridge 167:e84263d55307 44 /* Includes ------------------------------------------------------------------*/
AnnaBridge 167:e84263d55307 45 #include "stm32f4xx.h"
AnnaBridge 167:e84263d55307 46
AnnaBridge 167:e84263d55307 47 /** @addtogroup STM32F4xx_LL_Driver
AnnaBridge 167:e84263d55307 48 * @{
AnnaBridge 167:e84263d55307 49 */
AnnaBridge 167:e84263d55307 50
AnnaBridge 167:e84263d55307 51 #if defined (WWDG)
AnnaBridge 167:e84263d55307 52
AnnaBridge 167:e84263d55307 53 /** @defgroup WWDG_LL WWDG
AnnaBridge 167:e84263d55307 54 * @{
AnnaBridge 167:e84263d55307 55 */
AnnaBridge 167:e84263d55307 56
AnnaBridge 167:e84263d55307 57 /* Private types -------------------------------------------------------------*/
AnnaBridge 167:e84263d55307 58 /* Private variables ---------------------------------------------------------*/
AnnaBridge 167:e84263d55307 59
AnnaBridge 167:e84263d55307 60 /* Private constants ---------------------------------------------------------*/
AnnaBridge 167:e84263d55307 61
AnnaBridge 167:e84263d55307 62 /* Private macros ------------------------------------------------------------*/
AnnaBridge 167:e84263d55307 63
AnnaBridge 167:e84263d55307 64 /* Exported types ------------------------------------------------------------*/
AnnaBridge 167:e84263d55307 65 /* Exported constants --------------------------------------------------------*/
AnnaBridge 167:e84263d55307 66 /** @defgroup WWDG_LL_Exported_Constants WWDG Exported Constants
AnnaBridge 167:e84263d55307 67 * @{
AnnaBridge 167:e84263d55307 68 */
AnnaBridge 167:e84263d55307 69
AnnaBridge 167:e84263d55307 70
AnnaBridge 167:e84263d55307 71 /** @defgroup WWDG_LL_EC_IT IT Defines
AnnaBridge 167:e84263d55307 72 * @brief IT defines which can be used with LL_WWDG_ReadReg and LL_WWDG_WriteReg functions
AnnaBridge 167:e84263d55307 73 * @{
AnnaBridge 167:e84263d55307 74 */
AnnaBridge 167:e84263d55307 75 #define LL_WWDG_CFR_EWI WWDG_CFR_EWI
AnnaBridge 167:e84263d55307 76 /**
AnnaBridge 167:e84263d55307 77 * @}
AnnaBridge 167:e84263d55307 78 */
AnnaBridge 167:e84263d55307 79
AnnaBridge 167:e84263d55307 80 /** @defgroup WWDG_LL_EC_PRESCALER PRESCALER
AnnaBridge 167:e84263d55307 81 * @{
AnnaBridge 167:e84263d55307 82 */
AnnaBridge 167:e84263d55307 83 #define LL_WWDG_PRESCALER_1 (uint32_t)0x00000000U /*!< WWDG counter clock = (PCLK1/4096)/1 */
AnnaBridge 167:e84263d55307 84 #define LL_WWDG_PRESCALER_2 WWDG_CFR_WDGTB_0 /*!< WWDG counter clock = (PCLK1/4096)/2 */
AnnaBridge 167:e84263d55307 85 #define LL_WWDG_PRESCALER_4 WWDG_CFR_WDGTB_1 /*!< WWDG counter clock = (PCLK1/4096)/4 */
AnnaBridge 167:e84263d55307 86 #define LL_WWDG_PRESCALER_8 (WWDG_CFR_WDGTB_0 | WWDG_CFR_WDGTB_1) /*!< WWDG counter clock = (PCLK1/4096)/8 */
AnnaBridge 167:e84263d55307 87 /**
AnnaBridge 167:e84263d55307 88 * @}
AnnaBridge 167:e84263d55307 89 */
AnnaBridge 167:e84263d55307 90
AnnaBridge 167:e84263d55307 91 /**
AnnaBridge 167:e84263d55307 92 * @}
AnnaBridge 167:e84263d55307 93 */
AnnaBridge 167:e84263d55307 94
AnnaBridge 167:e84263d55307 95 /* Exported macro ------------------------------------------------------------*/
AnnaBridge 167:e84263d55307 96 /** @defgroup WWDG_LL_Exported_Macros WWDG Exported Macros
AnnaBridge 167:e84263d55307 97 * @{
AnnaBridge 167:e84263d55307 98 */
AnnaBridge 167:e84263d55307 99 /** @defgroup WWDG_LL_EM_WRITE_READ Common Write and read registers macros
AnnaBridge 167:e84263d55307 100 * @{
AnnaBridge 167:e84263d55307 101 */
AnnaBridge 167:e84263d55307 102 /**
AnnaBridge 167:e84263d55307 103 * @brief Write a value in WWDG register
AnnaBridge 167:e84263d55307 104 * @param __INSTANCE__ WWDG Instance
AnnaBridge 167:e84263d55307 105 * @param __REG__ Register to be written
AnnaBridge 167:e84263d55307 106 * @param __VALUE__ Value to be written in the register
AnnaBridge 167:e84263d55307 107 * @retval None
AnnaBridge 167:e84263d55307 108 */
AnnaBridge 167:e84263d55307 109 #define LL_WWDG_WriteReg(__INSTANCE__, __REG__, __VALUE__) WRITE_REG(__INSTANCE__->__REG__, (__VALUE__))
AnnaBridge 167:e84263d55307 110
AnnaBridge 167:e84263d55307 111 /**
AnnaBridge 167:e84263d55307 112 * @brief Read a value in WWDG register
AnnaBridge 167:e84263d55307 113 * @param __INSTANCE__ WWDG Instance
AnnaBridge 167:e84263d55307 114 * @param __REG__ Register to be read
AnnaBridge 167:e84263d55307 115 * @retval Register value
AnnaBridge 167:e84263d55307 116 */
AnnaBridge 167:e84263d55307 117 #define LL_WWDG_ReadReg(__INSTANCE__, __REG__) READ_REG(__INSTANCE__->__REG__)
AnnaBridge 167:e84263d55307 118 /**
AnnaBridge 167:e84263d55307 119 * @}
AnnaBridge 167:e84263d55307 120 */
AnnaBridge 167:e84263d55307 121
AnnaBridge 167:e84263d55307 122
AnnaBridge 167:e84263d55307 123 /**
AnnaBridge 167:e84263d55307 124 * @}
AnnaBridge 167:e84263d55307 125 */
AnnaBridge 167:e84263d55307 126
AnnaBridge 167:e84263d55307 127 /* Exported functions --------------------------------------------------------*/
AnnaBridge 167:e84263d55307 128 /** @defgroup WWDG_LL_Exported_Functions WWDG Exported Functions
AnnaBridge 167:e84263d55307 129 * @{
AnnaBridge 167:e84263d55307 130 */
AnnaBridge 167:e84263d55307 131
AnnaBridge 167:e84263d55307 132 /** @defgroup WWDG_LL_EF_Configuration Configuration
AnnaBridge 167:e84263d55307 133 * @{
AnnaBridge 167:e84263d55307 134 */
AnnaBridge 167:e84263d55307 135 /**
AnnaBridge 167:e84263d55307 136 * @brief Enable Window Watchdog. The watchdog is always disabled after a reset.
AnnaBridge 167:e84263d55307 137 * @note It is enabled by setting the WDGA bit in the WWDG_CR register,
AnnaBridge 167:e84263d55307 138 * then it cannot be disabled again except by a reset.
AnnaBridge 167:e84263d55307 139 * This bit is set by software and only cleared by hardware after a reset.
AnnaBridge 167:e84263d55307 140 * When WDGA = 1, the watchdog can generate a reset.
AnnaBridge 167:e84263d55307 141 * @rmtoll CR WDGA LL_WWDG_Enable
AnnaBridge 167:e84263d55307 142 * @param WWDGx WWDG Instance
AnnaBridge 167:e84263d55307 143 * @retval None
AnnaBridge 167:e84263d55307 144 */
AnnaBridge 167:e84263d55307 145 __STATIC_INLINE void LL_WWDG_Enable(WWDG_TypeDef *WWDGx)
AnnaBridge 167:e84263d55307 146 {
AnnaBridge 167:e84263d55307 147 SET_BIT(WWDGx->CR, WWDG_CR_WDGA);
AnnaBridge 167:e84263d55307 148 }
AnnaBridge 167:e84263d55307 149
AnnaBridge 167:e84263d55307 150 /**
AnnaBridge 167:e84263d55307 151 * @brief Checks if Window Watchdog is enabled
AnnaBridge 167:e84263d55307 152 * @rmtoll CR WDGA LL_WWDG_IsEnabled
AnnaBridge 167:e84263d55307 153 * @param WWDGx WWDG Instance
AnnaBridge 167:e84263d55307 154 * @retval State of bit (1 or 0).
AnnaBridge 167:e84263d55307 155 */
AnnaBridge 167:e84263d55307 156 __STATIC_INLINE uint32_t LL_WWDG_IsEnabled(WWDG_TypeDef *WWDGx)
AnnaBridge 167:e84263d55307 157 {
AnnaBridge 167:e84263d55307 158 return (READ_BIT(WWDGx->CR, WWDG_CR_WDGA) == (WWDG_CR_WDGA));
AnnaBridge 167:e84263d55307 159 }
AnnaBridge 167:e84263d55307 160
AnnaBridge 167:e84263d55307 161 /**
AnnaBridge 167:e84263d55307 162 * @brief Set the Watchdog counter value to provided value (7-bits T[6:0])
AnnaBridge 167:e84263d55307 163 * @note When writing to the WWDG_CR register, always write 1 in the MSB b6 to avoid generating an immediate reset
AnnaBridge 167:e84263d55307 164 * This counter is decremented every (4096 x 2expWDGTB) PCLK cycles
AnnaBridge 167:e84263d55307 165 * A reset is produced when it rolls over from 0x40 to 0x3F (bit T6 becomes cleared)
AnnaBridge 167:e84263d55307 166 * Setting the counter lower then 0x40 causes an immediate reset (if WWDG enabled)
AnnaBridge 167:e84263d55307 167 * @rmtoll CR T LL_WWDG_SetCounter
AnnaBridge 167:e84263d55307 168 * @param WWDGx WWDG Instance
AnnaBridge 167:e84263d55307 169 * @param Counter 0..0x7F (7 bit counter value)
AnnaBridge 167:e84263d55307 170 * @retval None
AnnaBridge 167:e84263d55307 171 */
AnnaBridge 167:e84263d55307 172 __STATIC_INLINE void LL_WWDG_SetCounter(WWDG_TypeDef *WWDGx, uint32_t Counter)
AnnaBridge 167:e84263d55307 173 {
AnnaBridge 167:e84263d55307 174 MODIFY_REG(WWDGx->CR, WWDG_CR_T, Counter);
AnnaBridge 167:e84263d55307 175 }
AnnaBridge 167:e84263d55307 176
AnnaBridge 167:e84263d55307 177 /**
AnnaBridge 167:e84263d55307 178 * @brief Return current Watchdog Counter Value (7 bits counter value)
AnnaBridge 167:e84263d55307 179 * @rmtoll CR T LL_WWDG_GetCounter
AnnaBridge 167:e84263d55307 180 * @param WWDGx WWDG Instance
AnnaBridge 167:e84263d55307 181 * @retval 7 bit Watchdog Counter value
AnnaBridge 167:e84263d55307 182 */
AnnaBridge 167:e84263d55307 183 __STATIC_INLINE uint32_t LL_WWDG_GetCounter(WWDG_TypeDef *WWDGx)
AnnaBridge 167:e84263d55307 184 {
AnnaBridge 167:e84263d55307 185 return (uint32_t)(READ_BIT(WWDGx->CR, WWDG_CR_T));
AnnaBridge 167:e84263d55307 186 }
AnnaBridge 167:e84263d55307 187
AnnaBridge 167:e84263d55307 188 /**
AnnaBridge 167:e84263d55307 189 * @brief Set the time base of the prescaler (WDGTB).
AnnaBridge 167:e84263d55307 190 * @note Prescaler is used to apply ratio on PCLK clock, so that Watchdog counter
AnnaBridge 167:e84263d55307 191 * is decremented every (4096 x 2expWDGTB) PCLK cycles
AnnaBridge 167:e84263d55307 192 * @rmtoll CFR WDGTB LL_WWDG_SetPrescaler
AnnaBridge 167:e84263d55307 193 * @param WWDGx WWDG Instance
AnnaBridge 167:e84263d55307 194 * @param Prescaler This parameter can be one of the following values:
AnnaBridge 167:e84263d55307 195 * @arg @ref LL_WWDG_PRESCALER_1
AnnaBridge 167:e84263d55307 196 * @arg @ref LL_WWDG_PRESCALER_2
AnnaBridge 167:e84263d55307 197 * @arg @ref LL_WWDG_PRESCALER_4
AnnaBridge 167:e84263d55307 198 * @arg @ref LL_WWDG_PRESCALER_8
AnnaBridge 167:e84263d55307 199 * @retval None
AnnaBridge 167:e84263d55307 200 */
AnnaBridge 167:e84263d55307 201 __STATIC_INLINE void LL_WWDG_SetPrescaler(WWDG_TypeDef *WWDGx, uint32_t Prescaler)
AnnaBridge 167:e84263d55307 202 {
AnnaBridge 167:e84263d55307 203 MODIFY_REG(WWDGx->CFR, WWDG_CFR_WDGTB, Prescaler);
AnnaBridge 167:e84263d55307 204 }
AnnaBridge 167:e84263d55307 205
AnnaBridge 167:e84263d55307 206 /**
AnnaBridge 167:e84263d55307 207 * @brief Return current Watchdog Prescaler Value
AnnaBridge 167:e84263d55307 208 * @rmtoll CFR WDGTB LL_WWDG_GetPrescaler
AnnaBridge 167:e84263d55307 209 * @param WWDGx WWDG Instance
AnnaBridge 167:e84263d55307 210 * @retval Returned value can be one of the following values:
AnnaBridge 167:e84263d55307 211 * @arg @ref LL_WWDG_PRESCALER_1
AnnaBridge 167:e84263d55307 212 * @arg @ref LL_WWDG_PRESCALER_2
AnnaBridge 167:e84263d55307 213 * @arg @ref LL_WWDG_PRESCALER_4
AnnaBridge 167:e84263d55307 214 * @arg @ref LL_WWDG_PRESCALER_8
AnnaBridge 167:e84263d55307 215 */
AnnaBridge 167:e84263d55307 216 __STATIC_INLINE uint32_t LL_WWDG_GetPrescaler(WWDG_TypeDef *WWDGx)
AnnaBridge 167:e84263d55307 217 {
AnnaBridge 167:e84263d55307 218 return (uint32_t)(READ_BIT(WWDGx->CFR, WWDG_CFR_WDGTB));
AnnaBridge 167:e84263d55307 219 }
AnnaBridge 167:e84263d55307 220
AnnaBridge 167:e84263d55307 221 /**
AnnaBridge 167:e84263d55307 222 * @brief Set the Watchdog Window value to be compared to the downcounter (7-bits W[6:0]).
AnnaBridge 167:e84263d55307 223 * @note This window value defines when write in the WWDG_CR register
AnnaBridge 167:e84263d55307 224 * to program Watchdog counter is allowed.
AnnaBridge 167:e84263d55307 225 * Watchdog counter value update must occur only when the counter value
AnnaBridge 167:e84263d55307 226 * is lower than the Watchdog window register value.
AnnaBridge 167:e84263d55307 227 * Otherwise, a MCU reset is generated if the 7-bit Watchdog counter value
AnnaBridge 167:e84263d55307 228 * (in the control register) is refreshed before the downcounter has reached
AnnaBridge 167:e84263d55307 229 * the watchdog window register value.
AnnaBridge 167:e84263d55307 230 * Physically is possible to set the Window lower then 0x40 but it is not recommended.
AnnaBridge 167:e84263d55307 231 * To generate an immediate reset, it is possible to set the Counter lower than 0x40.
AnnaBridge 167:e84263d55307 232 * @rmtoll CFR W LL_WWDG_SetWindow
AnnaBridge 167:e84263d55307 233 * @param WWDGx WWDG Instance
AnnaBridge 167:e84263d55307 234 * @param Window 0x00..0x7F (7 bit Window value)
AnnaBridge 167:e84263d55307 235 * @retval None
AnnaBridge 167:e84263d55307 236 */
AnnaBridge 167:e84263d55307 237 __STATIC_INLINE void LL_WWDG_SetWindow(WWDG_TypeDef *WWDGx, uint32_t Window)
AnnaBridge 167:e84263d55307 238 {
AnnaBridge 167:e84263d55307 239 MODIFY_REG(WWDGx->CFR, WWDG_CFR_W, Window);
AnnaBridge 167:e84263d55307 240 }
AnnaBridge 167:e84263d55307 241
AnnaBridge 167:e84263d55307 242 /**
AnnaBridge 167:e84263d55307 243 * @brief Return current Watchdog Window Value (7 bits value)
AnnaBridge 167:e84263d55307 244 * @rmtoll CFR W LL_WWDG_GetWindow
AnnaBridge 167:e84263d55307 245 * @param WWDGx WWDG Instance
AnnaBridge 167:e84263d55307 246 * @retval 7 bit Watchdog Window value
AnnaBridge 167:e84263d55307 247 */
AnnaBridge 167:e84263d55307 248 __STATIC_INLINE uint32_t LL_WWDG_GetWindow(WWDG_TypeDef *WWDGx)
AnnaBridge 167:e84263d55307 249 {
AnnaBridge 167:e84263d55307 250 return (uint32_t)(READ_BIT(WWDGx->CFR, WWDG_CFR_W));
AnnaBridge 167:e84263d55307 251 }
AnnaBridge 167:e84263d55307 252
AnnaBridge 167:e84263d55307 253 /**
AnnaBridge 167:e84263d55307 254 * @}
AnnaBridge 167:e84263d55307 255 */
AnnaBridge 167:e84263d55307 256
AnnaBridge 167:e84263d55307 257 /** @defgroup WWDG_LL_EF_FLAG_Management FLAG_Management
AnnaBridge 167:e84263d55307 258 * @{
AnnaBridge 167:e84263d55307 259 */
AnnaBridge 167:e84263d55307 260 /**
AnnaBridge 167:e84263d55307 261 * @brief Indicates if the WWDG Early Wakeup Interrupt Flag is set or not.
AnnaBridge 167:e84263d55307 262 * @note This bit is set by hardware when the counter has reached the value 0x40.
AnnaBridge 167:e84263d55307 263 * It must be cleared by software by writing 0.
AnnaBridge 167:e84263d55307 264 * A write of 1 has no effect. This bit is also set if the interrupt is not enabled.
AnnaBridge 167:e84263d55307 265 * @rmtoll SR EWIF LL_WWDG_IsActiveFlag_EWKUP
AnnaBridge 167:e84263d55307 266 * @param WWDGx WWDG Instance
AnnaBridge 167:e84263d55307 267 * @retval State of bit (1 or 0).
AnnaBridge 167:e84263d55307 268 */
AnnaBridge 167:e84263d55307 269 __STATIC_INLINE uint32_t LL_WWDG_IsActiveFlag_EWKUP(WWDG_TypeDef *WWDGx)
AnnaBridge 167:e84263d55307 270 {
AnnaBridge 167:e84263d55307 271 return (READ_BIT(WWDGx->SR, WWDG_SR_EWIF) == (WWDG_SR_EWIF));
AnnaBridge 167:e84263d55307 272 }
AnnaBridge 167:e84263d55307 273
AnnaBridge 167:e84263d55307 274 /**
AnnaBridge 167:e84263d55307 275 * @brief Clear WWDG Early Wakeup Interrupt Flag (EWIF)
AnnaBridge 167:e84263d55307 276 * @rmtoll SR EWIF LL_WWDG_ClearFlag_EWKUP
AnnaBridge 167:e84263d55307 277 * @param WWDGx WWDG Instance
AnnaBridge 167:e84263d55307 278 * @retval None
AnnaBridge 167:e84263d55307 279 */
AnnaBridge 167:e84263d55307 280 __STATIC_INLINE void LL_WWDG_ClearFlag_EWKUP(WWDG_TypeDef *WWDGx)
AnnaBridge 167:e84263d55307 281 {
AnnaBridge 167:e84263d55307 282 WRITE_REG(WWDGx->SR, ~WWDG_SR_EWIF);
AnnaBridge 167:e84263d55307 283 }
AnnaBridge 167:e84263d55307 284
AnnaBridge 167:e84263d55307 285 /**
AnnaBridge 167:e84263d55307 286 * @}
AnnaBridge 167:e84263d55307 287 */
AnnaBridge 167:e84263d55307 288
AnnaBridge 167:e84263d55307 289 /** @defgroup WWDG_LL_EF_IT_Management IT_Management
AnnaBridge 167:e84263d55307 290 * @{
AnnaBridge 167:e84263d55307 291 */
AnnaBridge 167:e84263d55307 292 /**
AnnaBridge 167:e84263d55307 293 * @brief Enable the Early Wakeup Interrupt.
AnnaBridge 167:e84263d55307 294 * @note When set, an interrupt occurs whenever the counter reaches value 0x40.
AnnaBridge 167:e84263d55307 295 * This interrupt is only cleared by hardware after a reset
AnnaBridge 167:e84263d55307 296 * @rmtoll CFR EWI LL_WWDG_EnableIT_EWKUP
AnnaBridge 167:e84263d55307 297 * @param WWDGx WWDG Instance
AnnaBridge 167:e84263d55307 298 * @retval None
AnnaBridge 167:e84263d55307 299 */
AnnaBridge 167:e84263d55307 300 __STATIC_INLINE void LL_WWDG_EnableIT_EWKUP(WWDG_TypeDef *WWDGx)
AnnaBridge 167:e84263d55307 301 {
AnnaBridge 167:e84263d55307 302 SET_BIT(WWDGx->CFR, WWDG_CFR_EWI);
AnnaBridge 167:e84263d55307 303 }
AnnaBridge 167:e84263d55307 304
AnnaBridge 167:e84263d55307 305 /**
AnnaBridge 167:e84263d55307 306 * @brief Check if Early Wakeup Interrupt is enabled
AnnaBridge 167:e84263d55307 307 * @rmtoll CFR EWI LL_WWDG_IsEnabledIT_EWKUP
AnnaBridge 167:e84263d55307 308 * @param WWDGx WWDG Instance
AnnaBridge 167:e84263d55307 309 * @retval State of bit (1 or 0).
AnnaBridge 167:e84263d55307 310 */
AnnaBridge 167:e84263d55307 311 __STATIC_INLINE uint32_t LL_WWDG_IsEnabledIT_EWKUP(WWDG_TypeDef *WWDGx)
AnnaBridge 167:e84263d55307 312 {
AnnaBridge 167:e84263d55307 313 return (READ_BIT(WWDGx->CFR, WWDG_CFR_EWI) == (WWDG_CFR_EWI));
AnnaBridge 167:e84263d55307 314 }
AnnaBridge 167:e84263d55307 315
AnnaBridge 167:e84263d55307 316 /**
AnnaBridge 167:e84263d55307 317 * @}
AnnaBridge 167:e84263d55307 318 */
AnnaBridge 167:e84263d55307 319
AnnaBridge 167:e84263d55307 320 /**
AnnaBridge 167:e84263d55307 321 * @}
AnnaBridge 167:e84263d55307 322 */
AnnaBridge 167:e84263d55307 323
AnnaBridge 167:e84263d55307 324 /**
AnnaBridge 167:e84263d55307 325 * @}
AnnaBridge 167:e84263d55307 326 */
AnnaBridge 167:e84263d55307 327
AnnaBridge 167:e84263d55307 328 #endif /* WWDG */
AnnaBridge 167:e84263d55307 329
AnnaBridge 167:e84263d55307 330 /**
AnnaBridge 167:e84263d55307 331 * @}
AnnaBridge 167:e84263d55307 332 */
AnnaBridge 167:e84263d55307 333
AnnaBridge 167:e84263d55307 334 #ifdef __cplusplus
AnnaBridge 167:e84263d55307 335 }
AnnaBridge 167:e84263d55307 336 #endif
AnnaBridge 167:e84263d55307 337
AnnaBridge 167:e84263d55307 338 #endif /* __STM32F4xx_LL_WWDG_H */
AnnaBridge 167:e84263d55307 339
AnnaBridge 167:e84263d55307 340 /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/