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targets/TARGET_STM/TARGET_STM32F2/device/stm32f2xx_ll_wwdg.h@189:f392fc9709a3, 2019-02-20 (annotated)

Committer:
AnnaBridge
Date:
Wed Feb 20 22:31:08 2019 +0000
Revision:
189:f392fc9709a3
Parent:
167:e84263d55307 
mbed library release version 165

Who changed what in which revision?

UserRevisionLine numberNew contents of line
AnnaBridge 167:e84263d55307 1 /**
AnnaBridge 167:e84263d55307 2 ******************************************************************************
AnnaBridge 167:e84263d55307 3 * @file stm32f2xx_ll_wwdg.h
AnnaBridge 167:e84263d55307 4 * @author MCD Application Team
AnnaBridge 167:e84263d55307 5 * @version V1.2.1
AnnaBridge 167:e84263d55307 6 * @date 14-April-2017
AnnaBridge 167:e84263d55307 7 * @brief Header file of WWDG LL module.
AnnaBridge 167:e84263d55307 8 ******************************************************************************
AnnaBridge 167:e84263d55307 9 * @attention
AnnaBridge 167:e84263d55307 10 *
AnnaBridge 167:e84263d55307 11 * <h2><center>&copy; COPYRIGHT(c) 2017 STMicroelectronics</center></h2>
AnnaBridge 167:e84263d55307 12 *
AnnaBridge 167:e84263d55307 13 * Redistribution and use in source and binary forms, with or without modification,
AnnaBridge 167:e84263d55307 14 * are permitted provided that the following conditions are met:
AnnaBridge 167:e84263d55307 15 * 1. Redistributions of source code must retain the above copyright notice,
AnnaBridge 167:e84263d55307 16 * this list of conditions and the following disclaimer.
AnnaBridge 167:e84263d55307 17 * 2. Redistributions in binary form must reproduce the above copyright notice,
AnnaBridge 167:e84263d55307 18 * this list of conditions and the following disclaimer in the documentation
AnnaBridge 167:e84263d55307 19 * and/or other materials provided with the distribution.
AnnaBridge 167:e84263d55307 20 * 3. Neither the name of STMicroelectronics nor the names of its contributors
AnnaBridge 167:e84263d55307 21 * may be used to endorse or promote products derived from this software
AnnaBridge 167:e84263d55307 22 * without specific prior written permission.
AnnaBridge 167:e84263d55307 23 *
AnnaBridge 167:e84263d55307 24 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AnnaBridge 167:e84263d55307 25 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
AnnaBridge 167:e84263d55307 26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
AnnaBridge 167:e84263d55307 27 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
AnnaBridge 167:e84263d55307 28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
AnnaBridge 167:e84263d55307 29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
AnnaBridge 167:e84263d55307 30 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
AnnaBridge 167:e84263d55307 31 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
AnnaBridge 167:e84263d55307 32 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
AnnaBridge 167:e84263d55307 33 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
AnnaBridge 167:e84263d55307 34 *
AnnaBridge 167:e84263d55307 35 ******************************************************************************
AnnaBridge 167:e84263d55307 36 */
AnnaBridge 167:e84263d55307 37
AnnaBridge 167:e84263d55307 38 /* Define to prevent recursive inclusion -------------------------------------*/
AnnaBridge 167:e84263d55307 39 #ifndef __STM32F2xx_LL_WWDG_H
AnnaBridge 167:e84263d55307 40 #define __STM32F2xx_LL_WWDG_H
AnnaBridge 167:e84263d55307 41
AnnaBridge 167:e84263d55307 42 #ifdef __cplusplus
AnnaBridge 167:e84263d55307 43 extern "C" {
AnnaBridge 167:e84263d55307 44 #endif
AnnaBridge 167:e84263d55307 45
AnnaBridge 167:e84263d55307 46 /* Includes ------------------------------------------------------------------*/
AnnaBridge 167:e84263d55307 47 #include "stm32f2xx.h"
AnnaBridge 167:e84263d55307 48
AnnaBridge 167:e84263d55307 49 /** @addtogroup STM32F2xx_LL_Driver
AnnaBridge 167:e84263d55307 50 * @{
AnnaBridge 167:e84263d55307 51 */
AnnaBridge 167:e84263d55307 52
AnnaBridge 167:e84263d55307 53 #if defined (WWDG)
AnnaBridge 167:e84263d55307 54
AnnaBridge 167:e84263d55307 55 /** @defgroup WWDG_LL WWDG
AnnaBridge 167:e84263d55307 56 * @{
AnnaBridge 167:e84263d55307 57 */
AnnaBridge 167:e84263d55307 58
AnnaBridge 167:e84263d55307 59 /* Private types -------------------------------------------------------------*/
AnnaBridge 167:e84263d55307 60 /* Private variables ---------------------------------------------------------*/
AnnaBridge 167:e84263d55307 61
AnnaBridge 167:e84263d55307 62 /* Private constants ---------------------------------------------------------*/
AnnaBridge 167:e84263d55307 63
AnnaBridge 167:e84263d55307 64 /* Private macros ------------------------------------------------------------*/
AnnaBridge 167:e84263d55307 65
AnnaBridge 167:e84263d55307 66 /* Exported types ------------------------------------------------------------*/
AnnaBridge 167:e84263d55307 67 /* Exported constants --------------------------------------------------------*/
AnnaBridge 167:e84263d55307 68 /** @defgroup WWDG_LL_Exported_Constants WWDG Exported Constants
AnnaBridge 167:e84263d55307 69 * @{
AnnaBridge 167:e84263d55307 70 */
AnnaBridge 167:e84263d55307 71
AnnaBridge 167:e84263d55307 72
AnnaBridge 167:e84263d55307 73 /** @defgroup WWDG_LL_EC_IT IT Defines
AnnaBridge 167:e84263d55307 74 * @brief IT defines which can be used with LL_WWDG_ReadReg and LL_WWDG_WriteReg functions
AnnaBridge 167:e84263d55307 75 * @{
AnnaBridge 167:e84263d55307 76 */
AnnaBridge 167:e84263d55307 77 #define LL_WWDG_CFR_EWI WWDG_CFR_EWI
AnnaBridge 167:e84263d55307 78 /**
AnnaBridge 167:e84263d55307 79 * @}
AnnaBridge 167:e84263d55307 80 */
AnnaBridge 167:e84263d55307 81
AnnaBridge 167:e84263d55307 82 /** @defgroup WWDG_LL_EC_PRESCALER PRESCALER
AnnaBridge 167:e84263d55307 83 * @{
AnnaBridge 167:e84263d55307 84 */
AnnaBridge 167:e84263d55307 85 #define LL_WWDG_PRESCALER_1 (uint32_t)0x00000000U /*!< WWDG counter clock = (PCLK1/4096)/1 */
AnnaBridge 167:e84263d55307 86 #define LL_WWDG_PRESCALER_2 WWDG_CFR_WDGTB_0 /*!< WWDG counter clock = (PCLK1/4096)/2 */
AnnaBridge 167:e84263d55307 87 #define LL_WWDG_PRESCALER_4 WWDG_CFR_WDGTB_1 /*!< WWDG counter clock = (PCLK1/4096)/4 */
AnnaBridge 167:e84263d55307 88 #define LL_WWDG_PRESCALER_8 (WWDG_CFR_WDGTB_0 | WWDG_CFR_WDGTB_1) /*!< WWDG counter clock = (PCLK1/4096)/8 */
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 */
AnnaBridge 167:e84263d55307 96
AnnaBridge 167:e84263d55307 97 /* Exported macro ------------------------------------------------------------*/
AnnaBridge 167:e84263d55307 98 /** @defgroup WWDG_LL_Exported_Macros WWDG Exported Macros
AnnaBridge 167:e84263d55307 99 * @{
AnnaBridge 167:e84263d55307 100 */
AnnaBridge 167:e84263d55307 101 /** @defgroup WWDG_LL_EM_WRITE_READ Common Write and read registers macros
AnnaBridge 167:e84263d55307 102 * @{
AnnaBridge 167:e84263d55307 103 */
AnnaBridge 167:e84263d55307 104 /**
AnnaBridge 167:e84263d55307 105 * @brief Write a value in WWDG register
AnnaBridge 167:e84263d55307 106 * @param __INSTANCE__ WWDG Instance
AnnaBridge 167:e84263d55307 107 * @param __REG__ Register to be written
AnnaBridge 167:e84263d55307 108 * @param __VALUE__ Value to be written in the register
AnnaBridge 167:e84263d55307 109 * @retval None
AnnaBridge 167:e84263d55307 110 */
AnnaBridge 167:e84263d55307 111 #define LL_WWDG_WriteReg(__INSTANCE__, __REG__, __VALUE__) WRITE_REG(__INSTANCE__->__REG__, (__VALUE__))
AnnaBridge 167:e84263d55307 112
AnnaBridge 167:e84263d55307 113 /**
AnnaBridge 167:e84263d55307 114 * @brief Read a value in WWDG register
AnnaBridge 167:e84263d55307 115 * @param __INSTANCE__ WWDG Instance
AnnaBridge 167:e84263d55307 116 * @param __REG__ Register to be read
AnnaBridge 167:e84263d55307 117 * @retval Register value
AnnaBridge 167:e84263d55307 118 */
AnnaBridge 167:e84263d55307 119 #define LL_WWDG_ReadReg(__INSTANCE__, __REG__) READ_REG(__INSTANCE__->__REG__)
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 */
AnnaBridge 167:e84263d55307 128
AnnaBridge 167:e84263d55307 129 /* Exported functions --------------------------------------------------------*/
AnnaBridge 167:e84263d55307 130 /** @defgroup WWDG_LL_Exported_Functions WWDG Exported Functions
AnnaBridge 167:e84263d55307 131 * @{
AnnaBridge 167:e84263d55307 132 */
AnnaBridge 167:e84263d55307 133
AnnaBridge 167:e84263d55307 134 /** @defgroup WWDG_LL_EF_Configuration Configuration
AnnaBridge 167:e84263d55307 135 * @{
AnnaBridge 167:e84263d55307 136 */
AnnaBridge 167:e84263d55307 137 /**
AnnaBridge 167:e84263d55307 138 * @brief Enable Window Watchdog. The watchdog is always disabled after a reset.
AnnaBridge 167:e84263d55307 139 * @note It is enabled by setting the WDGA bit in the WWDG_CR register,
AnnaBridge 167:e84263d55307 140 * then it cannot be disabled again except by a reset.
AnnaBridge 167:e84263d55307 141 * This bit is set by software and only cleared by hardware after a reset.
AnnaBridge 167:e84263d55307 142 * When WDGA = 1, the watchdog can generate a reset.
AnnaBridge 167:e84263d55307 143 * @rmtoll CR WDGA LL_WWDG_Enable
AnnaBridge 167:e84263d55307 144 * @param WWDGx WWDG Instance
AnnaBridge 167:e84263d55307 145 * @retval None
AnnaBridge 167:e84263d55307 146 */
AnnaBridge 167:e84263d55307 147 __STATIC_INLINE void LL_WWDG_Enable(WWDG_TypeDef *WWDGx)
AnnaBridge 167:e84263d55307 148 {
AnnaBridge 167:e84263d55307 149 SET_BIT(WWDGx->CR, WWDG_CR_WDGA);
AnnaBridge 167:e84263d55307 150 }
AnnaBridge 167:e84263d55307 151
AnnaBridge 167:e84263d55307 152 /**
AnnaBridge 167:e84263d55307 153 * @brief Checks if Window Watchdog is enabled
AnnaBridge 167:e84263d55307 154 * @rmtoll CR WDGA LL_WWDG_IsEnabled
AnnaBridge 167:e84263d55307 155 * @param WWDGx WWDG Instance
AnnaBridge 167:e84263d55307 156 * @retval State of bit (1 or 0).
AnnaBridge 167:e84263d55307 157 */
AnnaBridge 167:e84263d55307 158 __STATIC_INLINE uint32_t LL_WWDG_IsEnabled(WWDG_TypeDef *WWDGx)
AnnaBridge 167:e84263d55307 159 {
AnnaBridge 167:e84263d55307 160 return (READ_BIT(WWDGx->CR, WWDG_CR_WDGA) == (WWDG_CR_WDGA));
AnnaBridge 167:e84263d55307 161 }
AnnaBridge 167:e84263d55307 162
AnnaBridge 167:e84263d55307 163 /**
AnnaBridge 167:e84263d55307 164 * @brief Set the Watchdog counter value to provided value (7-bits T[6:0])
AnnaBridge 167:e84263d55307 165 * @note When writing to the WWDG_CR register, always write 1 in the MSB b6 to avoid generating an immediate reset
AnnaBridge 167:e84263d55307 166 * This counter is decremented every (4096 x 2expWDGTB) PCLK cycles
AnnaBridge 167:e84263d55307 167 * A reset is produced when it rolls over from 0x40 to 0x3F (bit T6 becomes cleared)
AnnaBridge 167:e84263d55307 168 * Setting the counter lower then 0x40 causes an immediate reset (if WWDG enabled)
AnnaBridge 167:e84263d55307 169 * @rmtoll CR T LL_WWDG_SetCounter
AnnaBridge 167:e84263d55307 170 * @param WWDGx WWDG Instance
AnnaBridge 167:e84263d55307 171 * @param Counter 0..0x7F (7 bit counter value)
AnnaBridge 167:e84263d55307 172 * @retval None
AnnaBridge 167:e84263d55307 173 */
AnnaBridge 167:e84263d55307 174 __STATIC_INLINE void LL_WWDG_SetCounter(WWDG_TypeDef *WWDGx, uint32_t Counter)
AnnaBridge 167:e84263d55307 175 {
AnnaBridge 167:e84263d55307 176 MODIFY_REG(WWDGx->CR, WWDG_CR_T, Counter);
AnnaBridge 167:e84263d55307 177 }
AnnaBridge 167:e84263d55307 178
AnnaBridge 167:e84263d55307 179 /**
AnnaBridge 167:e84263d55307 180 * @brief Return current Watchdog Counter Value (7 bits counter value)
AnnaBridge 167:e84263d55307 181 * @rmtoll CR T LL_WWDG_GetCounter
AnnaBridge 167:e84263d55307 182 * @param WWDGx WWDG Instance
AnnaBridge 167:e84263d55307 183 * @retval 7 bit Watchdog Counter value
AnnaBridge 167:e84263d55307 184 */
AnnaBridge 167:e84263d55307 185 __STATIC_INLINE uint32_t LL_WWDG_GetCounter(WWDG_TypeDef *WWDGx)
AnnaBridge 167:e84263d55307 186 {
AnnaBridge 167:e84263d55307 187 return (uint32_t)(READ_BIT(WWDGx->CR, WWDG_CR_T));
AnnaBridge 167:e84263d55307 188 }
AnnaBridge 167:e84263d55307 189
AnnaBridge 167:e84263d55307 190 /**
AnnaBridge 167:e84263d55307 191 * @brief Set the time base of the prescaler (WDGTB).
AnnaBridge 167:e84263d55307 192 * @note Prescaler is used to apply ratio on PCLK clock, so that Watchdog counter
AnnaBridge 167:e84263d55307 193 * is decremented every (4096 x 2expWDGTB) PCLK cycles
AnnaBridge 167:e84263d55307 194 * @rmtoll CFR WDGTB LL_WWDG_SetPrescaler
AnnaBridge 167:e84263d55307 195 * @param WWDGx WWDG Instance
AnnaBridge 167:e84263d55307 196 * @param Prescaler This parameter can be one of the following values:
AnnaBridge 167:e84263d55307 197 * @arg @ref LL_WWDG_PRESCALER_1
AnnaBridge 167:e84263d55307 198 * @arg @ref LL_WWDG_PRESCALER_2
AnnaBridge 167:e84263d55307 199 * @arg @ref LL_WWDG_PRESCALER_4
AnnaBridge 167:e84263d55307 200 * @arg @ref LL_WWDG_PRESCALER_8
AnnaBridge 167:e84263d55307 201 * @retval None
AnnaBridge 167:e84263d55307 202 */
AnnaBridge 167:e84263d55307 203 __STATIC_INLINE void LL_WWDG_SetPrescaler(WWDG_TypeDef *WWDGx, uint32_t Prescaler)
AnnaBridge 167:e84263d55307 204 {
AnnaBridge 167:e84263d55307 205 MODIFY_REG(WWDGx->CFR, WWDG_CFR_WDGTB, Prescaler);
AnnaBridge 167:e84263d55307 206 }
AnnaBridge 167:e84263d55307 207
AnnaBridge 167:e84263d55307 208 /**
AnnaBridge 167:e84263d55307 209 * @brief Return current Watchdog Prescaler Value
AnnaBridge 167:e84263d55307 210 * @rmtoll CFR WDGTB LL_WWDG_GetPrescaler
AnnaBridge 167:e84263d55307 211 * @param WWDGx WWDG Instance
AnnaBridge 167:e84263d55307 212 * @retval Returned value can be one of the following values:
AnnaBridge 167:e84263d55307 213 * @arg @ref LL_WWDG_PRESCALER_1
AnnaBridge 167:e84263d55307 214 * @arg @ref LL_WWDG_PRESCALER_2
AnnaBridge 167:e84263d55307 215 * @arg @ref LL_WWDG_PRESCALER_4
AnnaBridge 167:e84263d55307 216 * @arg @ref LL_WWDG_PRESCALER_8
AnnaBridge 167:e84263d55307 217 */
AnnaBridge 167:e84263d55307 218 __STATIC_INLINE uint32_t LL_WWDG_GetPrescaler(WWDG_TypeDef *WWDGx)
AnnaBridge 167:e84263d55307 219 {
AnnaBridge 167:e84263d55307 220 return (uint32_t)(READ_BIT(WWDGx->CFR, WWDG_CFR_WDGTB));
AnnaBridge 167:e84263d55307 221 }
AnnaBridge 167:e84263d55307 222
AnnaBridge 167:e84263d55307 223 /**
AnnaBridge 167:e84263d55307 224 * @brief Set the Watchdog Window value to be compared to the downcounter (7-bits W[6:0]).
AnnaBridge 167:e84263d55307 225 * @note This window value defines when write in the WWDG_CR register
AnnaBridge 167:e84263d55307 226 * to program Watchdog counter is allowed.
AnnaBridge 167:e84263d55307 227 * Watchdog counter value update must occur only when the counter value
AnnaBridge 167:e84263d55307 228 * is lower than the Watchdog window register value.
AnnaBridge 167:e84263d55307 229 * Otherwise, a MCU reset is generated if the 7-bit Watchdog counter value
AnnaBridge 167:e84263d55307 230 * (in the control register) is refreshed before the downcounter has reached
AnnaBridge 167:e84263d55307 231 * the watchdog window register value.
AnnaBridge 167:e84263d55307 232 * Physically is possible to set the Window lower then 0x40 but it is not recommended.
AnnaBridge 167:e84263d55307 233 * To generate an immediate reset, it is possible to set the Counter lower than 0x40.
AnnaBridge 167:e84263d55307 234 * @rmtoll CFR W LL_WWDG_SetWindow
AnnaBridge 167:e84263d55307 235 * @param WWDGx WWDG Instance
AnnaBridge 167:e84263d55307 236 * @param Window 0x00..0x7F (7 bit Window value)
AnnaBridge 167:e84263d55307 237 * @retval None
AnnaBridge 167:e84263d55307 238 */
AnnaBridge 167:e84263d55307 239 __STATIC_INLINE void LL_WWDG_SetWindow(WWDG_TypeDef *WWDGx, uint32_t Window)
AnnaBridge 167:e84263d55307 240 {
AnnaBridge 167:e84263d55307 241 MODIFY_REG(WWDGx->CFR, WWDG_CFR_W, Window);
AnnaBridge 167:e84263d55307 242 }
AnnaBridge 167:e84263d55307 243
AnnaBridge 167:e84263d55307 244 /**
AnnaBridge 167:e84263d55307 245 * @brief Return current Watchdog Window Value (7 bits value)
AnnaBridge 167:e84263d55307 246 * @rmtoll CFR W LL_WWDG_GetWindow
AnnaBridge 167:e84263d55307 247 * @param WWDGx WWDG Instance
AnnaBridge 167:e84263d55307 248 * @retval 7 bit Watchdog Window value
AnnaBridge 167:e84263d55307 249 */
AnnaBridge 167:e84263d55307 250 __STATIC_INLINE uint32_t LL_WWDG_GetWindow(WWDG_TypeDef *WWDGx)
AnnaBridge 167:e84263d55307 251 {
AnnaBridge 167:e84263d55307 252 return (uint32_t)(READ_BIT(WWDGx->CFR, WWDG_CFR_W));
AnnaBridge 167:e84263d55307 253 }
AnnaBridge 167:e84263d55307 254
AnnaBridge 167:e84263d55307 255 /**
AnnaBridge 167:e84263d55307 256 * @}
AnnaBridge 167:e84263d55307 257 */
AnnaBridge 167:e84263d55307 258
AnnaBridge 167:e84263d55307 259 /** @defgroup WWDG_LL_EF_FLAG_Management FLAG_Management
AnnaBridge 167:e84263d55307 260 * @{
AnnaBridge 167:e84263d55307 261 */
AnnaBridge 167:e84263d55307 262 /**
AnnaBridge 167:e84263d55307 263 * @brief Indicates if the WWDG Early Wakeup Interrupt Flag is set or not.
AnnaBridge 167:e84263d55307 264 * @note This bit is set by hardware when the counter has reached the value 0x40.
AnnaBridge 167:e84263d55307 265 * It must be cleared by software by writing 0.
AnnaBridge 167:e84263d55307 266 * A write of 1 has no effect. This bit is also set if the interrupt is not enabled.
AnnaBridge 167:e84263d55307 267 * @rmtoll SR EWIF LL_WWDG_IsActiveFlag_EWKUP
AnnaBridge 167:e84263d55307 268 * @param WWDGx WWDG Instance
AnnaBridge 167:e84263d55307 269 * @retval State of bit (1 or 0).
AnnaBridge 167:e84263d55307 270 */
AnnaBridge 167:e84263d55307 271 __STATIC_INLINE uint32_t LL_WWDG_IsActiveFlag_EWKUP(WWDG_TypeDef *WWDGx)
AnnaBridge 167:e84263d55307 272 {
AnnaBridge 167:e84263d55307 273 return (READ_BIT(WWDGx->SR, WWDG_SR_EWIF) == (WWDG_SR_EWIF));
AnnaBridge 167:e84263d55307 274 }
AnnaBridge 167:e84263d55307 275
AnnaBridge 167:e84263d55307 276 /**
AnnaBridge 167:e84263d55307 277 * @brief Clear WWDG Early Wakeup Interrupt Flag (EWIF)
AnnaBridge 167:e84263d55307 278 * @rmtoll SR EWIF LL_WWDG_ClearFlag_EWKUP
AnnaBridge 167:e84263d55307 279 * @param WWDGx WWDG Instance
AnnaBridge 167:e84263d55307 280 * @retval None
AnnaBridge 167:e84263d55307 281 */
AnnaBridge 167:e84263d55307 282 __STATIC_INLINE void LL_WWDG_ClearFlag_EWKUP(WWDG_TypeDef *WWDGx)
AnnaBridge 167:e84263d55307 283 {
AnnaBridge 167:e84263d55307 284 WRITE_REG(WWDGx->SR, ~WWDG_SR_EWIF);
AnnaBridge 167:e84263d55307 285 }
AnnaBridge 167:e84263d55307 286
AnnaBridge 167:e84263d55307 287 /**
AnnaBridge 167:e84263d55307 288 * @}
AnnaBridge 167:e84263d55307 289 */
AnnaBridge 167:e84263d55307 290
AnnaBridge 167:e84263d55307 291 /** @defgroup WWDG_LL_EF_IT_Management IT_Management
AnnaBridge 167:e84263d55307 292 * @{
AnnaBridge 167:e84263d55307 293 */
AnnaBridge 167:e84263d55307 294 /**
AnnaBridge 167:e84263d55307 295 * @brief Enable the Early Wakeup Interrupt.
AnnaBridge 167:e84263d55307 296 * @note When set, an interrupt occurs whenever the counter reaches value 0x40.
AnnaBridge 167:e84263d55307 297 * This interrupt is only cleared by hardware after a reset
AnnaBridge 167:e84263d55307 298 * @rmtoll CFR EWI LL_WWDG_EnableIT_EWKUP
AnnaBridge 167:e84263d55307 299 * @param WWDGx WWDG Instance
AnnaBridge 167:e84263d55307 300 * @retval None
AnnaBridge 167:e84263d55307 301 */
AnnaBridge 167:e84263d55307 302 __STATIC_INLINE void LL_WWDG_EnableIT_EWKUP(WWDG_TypeDef *WWDGx)
AnnaBridge 167:e84263d55307 303 {
AnnaBridge 167:e84263d55307 304 SET_BIT(WWDGx->CFR, WWDG_CFR_EWI);
AnnaBridge 167:e84263d55307 305 }
AnnaBridge 167:e84263d55307 306
AnnaBridge 167:e84263d55307 307 /**
AnnaBridge 167:e84263d55307 308 * @brief Check if Early Wakeup Interrupt is enabled
AnnaBridge 167:e84263d55307 309 * @rmtoll CFR EWI LL_WWDG_IsEnabledIT_EWKUP
AnnaBridge 167:e84263d55307 310 * @param WWDGx WWDG Instance
AnnaBridge 167:e84263d55307 311 * @retval State of bit (1 or 0).
AnnaBridge 167:e84263d55307 312 */
AnnaBridge 167:e84263d55307 313 __STATIC_INLINE uint32_t LL_WWDG_IsEnabledIT_EWKUP(WWDG_TypeDef *WWDGx)
AnnaBridge 167:e84263d55307 314 {
AnnaBridge 167:e84263d55307 315 return (READ_BIT(WWDGx->CFR, WWDG_CFR_EWI) == (WWDG_CFR_EWI));
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 */
AnnaBridge 167:e84263d55307 329
AnnaBridge 167:e84263d55307 330 #endif /* WWDG */
AnnaBridge 167:e84263d55307 331
AnnaBridge 167:e84263d55307 332 /**
AnnaBridge 167:e84263d55307 333 * @}
AnnaBridge 167:e84263d55307 334 */
AnnaBridge 167:e84263d55307 335
AnnaBridge 167:e84263d55307 336 #ifdef __cplusplus
AnnaBridge 167:e84263d55307 337 }
AnnaBridge 167:e84263d55307 338 #endif
AnnaBridge 167:e84263d55307 339
AnnaBridge 167:e84263d55307 340 #endif /* __STM32F2xx_LL_WWDG_H */
AnnaBridge 167:e84263d55307 341
AnnaBridge 167:e84263d55307 342 /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/