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TARGET_NUCLEO_L432KC/TARGET_STM/TARGET_STM32L4/device/stm32l4xx_ll_wwdg.h@156:ff21514d8981, 2017-11-08 (annotated)

Committer:
AnnaBridge
Date:
Wed Nov 08 17:18:06 2017 +0000
Revision:
156:ff21514d8981
Child:
161:aa5281ff4a02
Reverting back to release 154 of the mbed library

Who changed what in which revision?

UserRevisionLine numberNew contents of line
AnnaBridge 156:ff21514d8981 1 /**
AnnaBridge 156:ff21514d8981 2 ******************************************************************************
AnnaBridge 156:ff21514d8981 3 * @file stm32l4xx_ll_wwdg.h
AnnaBridge 156:ff21514d8981 4 * @author MCD Application Team
AnnaBridge 156:ff21514d8981 5 * @version V1.7.1
AnnaBridge 156:ff21514d8981 6 * @date 21-April-2017
AnnaBridge 156:ff21514d8981 7 * @brief Header file of WWDG LL module.
AnnaBridge 156:ff21514d8981 8 ******************************************************************************
AnnaBridge 156:ff21514d8981 9 * @attention
AnnaBridge 156:ff21514d8981 10 *
AnnaBridge 156:ff21514d8981 11 * <h2><center>&copy; COPYRIGHT(c) 2017 STMicroelectronics</center></h2>
AnnaBridge 156:ff21514d8981 12 *
AnnaBridge 156:ff21514d8981 13 * Redistribution and use in source and binary forms, with or without modification,
AnnaBridge 156:ff21514d8981 14 * are permitted provided that the following conditions are met:
AnnaBridge 156:ff21514d8981 15 * 1. Redistributions of source code must retain the above copyright notice,
AnnaBridge 156:ff21514d8981 16 * this list of conditions and the following disclaimer.
AnnaBridge 156:ff21514d8981 17 * 2. Redistributions in binary form must reproduce the above copyright notice,
AnnaBridge 156:ff21514d8981 18 * this list of conditions and the following disclaimer in the documentation
AnnaBridge 156:ff21514d8981 19 * and/or other materials provided with the distribution.
AnnaBridge 156:ff21514d8981 20 * 3. Neither the name of STMicroelectronics nor the names of its contributors
AnnaBridge 156:ff21514d8981 21 * may be used to endorse or promote products derived from this software
AnnaBridge 156:ff21514d8981 22 * without specific prior written permission.
AnnaBridge 156:ff21514d8981 23 *
AnnaBridge 156:ff21514d8981 24 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AnnaBridge 156:ff21514d8981 25 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
AnnaBridge 156:ff21514d8981 26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
AnnaBridge 156:ff21514d8981 27 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
AnnaBridge 156:ff21514d8981 28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
AnnaBridge 156:ff21514d8981 29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
AnnaBridge 156:ff21514d8981 30 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
AnnaBridge 156:ff21514d8981 31 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
AnnaBridge 156:ff21514d8981 32 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
AnnaBridge 156:ff21514d8981 33 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
AnnaBridge 156:ff21514d8981 34 *
AnnaBridge 156:ff21514d8981 35 ******************************************************************************
AnnaBridge 156:ff21514d8981 36 */
AnnaBridge 156:ff21514d8981 37
AnnaBridge 156:ff21514d8981 38 /* Define to prevent recursive inclusion -------------------------------------*/
AnnaBridge 156:ff21514d8981 39 #ifndef __STM32L4xx_LL_WWDG_H
AnnaBridge 156:ff21514d8981 40 #define __STM32L4xx_LL_WWDG_H
AnnaBridge 156:ff21514d8981 41
AnnaBridge 156:ff21514d8981 42 #ifdef __cplusplus
AnnaBridge 156:ff21514d8981 43 extern "C" {
AnnaBridge 156:ff21514d8981 44 #endif
AnnaBridge 156:ff21514d8981 45
AnnaBridge 156:ff21514d8981 46 /* Includes ------------------------------------------------------------------*/
AnnaBridge 156:ff21514d8981 47 #include "stm32l4xx.h"
AnnaBridge 156:ff21514d8981 48
AnnaBridge 156:ff21514d8981 49 /** @addtogroup STM32L4xx_LL_Driver
AnnaBridge 156:ff21514d8981 50 * @{
AnnaBridge 156:ff21514d8981 51 */
AnnaBridge 156:ff21514d8981 52
AnnaBridge 156:ff21514d8981 53 #if defined (WWDG)
AnnaBridge 156:ff21514d8981 54
AnnaBridge 156:ff21514d8981 55 /** @defgroup WWDG_LL WWDG
AnnaBridge 156:ff21514d8981 56 * @{
AnnaBridge 156:ff21514d8981 57 */
AnnaBridge 156:ff21514d8981 58
AnnaBridge 156:ff21514d8981 59 /* Private types -------------------------------------------------------------*/
AnnaBridge 156:ff21514d8981 60 /* Private variables ---------------------------------------------------------*/
AnnaBridge 156:ff21514d8981 61
AnnaBridge 156:ff21514d8981 62 /* Private constants ---------------------------------------------------------*/
AnnaBridge 156:ff21514d8981 63
AnnaBridge 156:ff21514d8981 64 /* Private macros ------------------------------------------------------------*/
AnnaBridge 156:ff21514d8981 65
AnnaBridge 156:ff21514d8981 66 /* Exported types ------------------------------------------------------------*/
AnnaBridge 156:ff21514d8981 67 /* Exported constants --------------------------------------------------------*/
AnnaBridge 156:ff21514d8981 68 /** @defgroup WWDG_LL_Exported_Constants WWDG Exported Constants
AnnaBridge 156:ff21514d8981 69 * @{
AnnaBridge 156:ff21514d8981 70 */
AnnaBridge 156:ff21514d8981 71
AnnaBridge 156:ff21514d8981 72
AnnaBridge 156:ff21514d8981 73 /** @defgroup WWDG_LL_EC_IT IT Defines
AnnaBridge 156:ff21514d8981 74 * @brief IT defines which can be used with LL_WWDG_ReadReg and LL_WWDG_WriteReg functions
AnnaBridge 156:ff21514d8981 75 * @{
AnnaBridge 156:ff21514d8981 76 */
AnnaBridge 156:ff21514d8981 77 #define LL_WWDG_CFR_EWI WWDG_CFR_EWI
AnnaBridge 156:ff21514d8981 78 /**
AnnaBridge 156:ff21514d8981 79 * @}
AnnaBridge 156:ff21514d8981 80 */
AnnaBridge 156:ff21514d8981 81
AnnaBridge 156:ff21514d8981 82 /** @defgroup WWDG_LL_EC_PRESCALER PRESCALER
AnnaBridge 156:ff21514d8981 83 * @{
AnnaBridge 156:ff21514d8981 84 */
AnnaBridge 156:ff21514d8981 85 #define LL_WWDG_PRESCALER_1 0x00000000U /*!< WWDG counter clock = (PCLK1/4096)/1 */
AnnaBridge 156:ff21514d8981 86 #define LL_WWDG_PRESCALER_2 WWDG_CFR_WDGTB_0 /*!< WWDG counter clock = (PCLK1/4096)/2 */
AnnaBridge 156:ff21514d8981 87 #define LL_WWDG_PRESCALER_4 WWDG_CFR_WDGTB_1 /*!< WWDG counter clock = (PCLK1/4096)/4 */
AnnaBridge 156:ff21514d8981 88 #define LL_WWDG_PRESCALER_8 (WWDG_CFR_WDGTB_0 | WWDG_CFR_WDGTB_1) /*!< WWDG counter clock = (PCLK1/4096)/8 */
AnnaBridge 156:ff21514d8981 89 /**
AnnaBridge 156:ff21514d8981 90 * @}
AnnaBridge 156:ff21514d8981 91 */
AnnaBridge 156:ff21514d8981 92
AnnaBridge 156:ff21514d8981 93 /**
AnnaBridge 156:ff21514d8981 94 * @}
AnnaBridge 156:ff21514d8981 95 */
AnnaBridge 156:ff21514d8981 96
AnnaBridge 156:ff21514d8981 97 /* Exported macro ------------------------------------------------------------*/
AnnaBridge 156:ff21514d8981 98 /** @defgroup WWDG_LL_Exported_Macros WWDG Exported Macros
AnnaBridge 156:ff21514d8981 99 * @{
AnnaBridge 156:ff21514d8981 100 */
AnnaBridge 156:ff21514d8981 101 /** @defgroup WWDG_LL_EM_WRITE_READ Common Write and read registers macros
AnnaBridge 156:ff21514d8981 102 * @{
AnnaBridge 156:ff21514d8981 103 */
AnnaBridge 156:ff21514d8981 104 /**
AnnaBridge 156:ff21514d8981 105 * @brief Write a value in WWDG register
AnnaBridge 156:ff21514d8981 106 * @param __INSTANCE__ WWDG Instance
AnnaBridge 156:ff21514d8981 107 * @param __REG__ Register to be written
AnnaBridge 156:ff21514d8981 108 * @param __VALUE__ Value to be written in the register
AnnaBridge 156:ff21514d8981 109 * @retval None
AnnaBridge 156:ff21514d8981 110 */
AnnaBridge 156:ff21514d8981 111 #define LL_WWDG_WriteReg(__INSTANCE__, __REG__, __VALUE__) WRITE_REG(__INSTANCE__->__REG__, (__VALUE__))
AnnaBridge 156:ff21514d8981 112
AnnaBridge 156:ff21514d8981 113 /**
AnnaBridge 156:ff21514d8981 114 * @brief Read a value in WWDG register
AnnaBridge 156:ff21514d8981 115 * @param __INSTANCE__ WWDG Instance
AnnaBridge 156:ff21514d8981 116 * @param __REG__ Register to be read
AnnaBridge 156:ff21514d8981 117 * @retval Register value
AnnaBridge 156:ff21514d8981 118 */
AnnaBridge 156:ff21514d8981 119 #define LL_WWDG_ReadReg(__INSTANCE__, __REG__) READ_REG(__INSTANCE__->__REG__)
AnnaBridge 156:ff21514d8981 120 /**
AnnaBridge 156:ff21514d8981 121 * @}
AnnaBridge 156:ff21514d8981 122 */
AnnaBridge 156:ff21514d8981 123
AnnaBridge 156:ff21514d8981 124
AnnaBridge 156:ff21514d8981 125 /**
AnnaBridge 156:ff21514d8981 126 * @}
AnnaBridge 156:ff21514d8981 127 */
AnnaBridge 156:ff21514d8981 128
AnnaBridge 156:ff21514d8981 129 /* Exported functions --------------------------------------------------------*/
AnnaBridge 156:ff21514d8981 130 /** @defgroup WWDG_LL_Exported_Functions WWDG Exported Functions
AnnaBridge 156:ff21514d8981 131 * @{
AnnaBridge 156:ff21514d8981 132 */
AnnaBridge 156:ff21514d8981 133
AnnaBridge 156:ff21514d8981 134 /** @defgroup WWDG_LL_EF_Configuration Configuration
AnnaBridge 156:ff21514d8981 135 * @{
AnnaBridge 156:ff21514d8981 136 */
AnnaBridge 156:ff21514d8981 137 /**
AnnaBridge 156:ff21514d8981 138 * @brief Enable Window Watchdog. The watchdog is always disabled after a reset.
AnnaBridge 156:ff21514d8981 139 * @note It is enabled by setting the WDGA bit in the WWDG_CR register,
AnnaBridge 156:ff21514d8981 140 * then it cannot be disabled again except by a reset.
AnnaBridge 156:ff21514d8981 141 * This bit is set by software and only cleared by hardware after a reset.
AnnaBridge 156:ff21514d8981 142 * When WDGA = 1, the watchdog can generate a reset.
AnnaBridge 156:ff21514d8981 143 * @rmtoll CR WDGA LL_WWDG_Enable
AnnaBridge 156:ff21514d8981 144 * @param WWDGx WWDG Instance
AnnaBridge 156:ff21514d8981 145 * @retval None
AnnaBridge 156:ff21514d8981 146 */
AnnaBridge 156:ff21514d8981 147 __STATIC_INLINE void LL_WWDG_Enable(WWDG_TypeDef *WWDGx)
AnnaBridge 156:ff21514d8981 148 {
AnnaBridge 156:ff21514d8981 149 SET_BIT(WWDGx->CR, WWDG_CR_WDGA);
AnnaBridge 156:ff21514d8981 150 }
AnnaBridge 156:ff21514d8981 151
AnnaBridge 156:ff21514d8981 152 /**
AnnaBridge 156:ff21514d8981 153 * @brief Checks if Window Watchdog is enabled
AnnaBridge 156:ff21514d8981 154 * @rmtoll CR WDGA LL_WWDG_IsEnabled
AnnaBridge 156:ff21514d8981 155 * @param WWDGx WWDG Instance
AnnaBridge 156:ff21514d8981 156 * @retval State of bit (1 or 0).
AnnaBridge 156:ff21514d8981 157 */
AnnaBridge 156:ff21514d8981 158 __STATIC_INLINE uint32_t LL_WWDG_IsEnabled(WWDG_TypeDef *WWDGx)
AnnaBridge 156:ff21514d8981 159 {
AnnaBridge 156:ff21514d8981 160 return (READ_BIT(WWDGx->CR, WWDG_CR_WDGA) == (WWDG_CR_WDGA));
AnnaBridge 156:ff21514d8981 161 }
AnnaBridge 156:ff21514d8981 162
AnnaBridge 156:ff21514d8981 163 /**
AnnaBridge 156:ff21514d8981 164 * @brief Set the Watchdog counter value to provided value (7-bits T[6:0])
AnnaBridge 156:ff21514d8981 165 * @note When writing to the WWDG_CR register, always write 1 in the MSB b6 to avoid generating an immediate reset
AnnaBridge 156:ff21514d8981 166 * This counter is decremented every (4096 x 2expWDGTB) PCLK cycles
AnnaBridge 156:ff21514d8981 167 * A reset is produced when it rolls over from 0x40 to 0x3F (bit T6 becomes cleared)
AnnaBridge 156:ff21514d8981 168 * Setting the counter lower then 0x40 causes an immediate reset (if WWDG enabled)
AnnaBridge 156:ff21514d8981 169 * @rmtoll CR T LL_WWDG_SetCounter
AnnaBridge 156:ff21514d8981 170 * @param WWDGx WWDG Instance
AnnaBridge 156:ff21514d8981 171 * @param Counter 0..0x7F (7 bit counter value)
AnnaBridge 156:ff21514d8981 172 * @retval None
AnnaBridge 156:ff21514d8981 173 */
AnnaBridge 156:ff21514d8981 174 __STATIC_INLINE void LL_WWDG_SetCounter(WWDG_TypeDef *WWDGx, uint32_t Counter)
AnnaBridge 156:ff21514d8981 175 {
AnnaBridge 156:ff21514d8981 176 MODIFY_REG(WWDGx->CR, WWDG_CR_T, Counter);
AnnaBridge 156:ff21514d8981 177 }
AnnaBridge 156:ff21514d8981 178
AnnaBridge 156:ff21514d8981 179 /**
AnnaBridge 156:ff21514d8981 180 * @brief Return current Watchdog Counter Value (7 bits counter value)
AnnaBridge 156:ff21514d8981 181 * @rmtoll CR T LL_WWDG_GetCounter
AnnaBridge 156:ff21514d8981 182 * @param WWDGx WWDG Instance
AnnaBridge 156:ff21514d8981 183 * @retval 7 bit Watchdog Counter value
AnnaBridge 156:ff21514d8981 184 */
AnnaBridge 156:ff21514d8981 185 __STATIC_INLINE uint32_t LL_WWDG_GetCounter(WWDG_TypeDef *WWDGx)
AnnaBridge 156:ff21514d8981 186 {
AnnaBridge 156:ff21514d8981 187 return (uint32_t)(READ_BIT(WWDGx->CR, WWDG_CR_T));
AnnaBridge 156:ff21514d8981 188 }
AnnaBridge 156:ff21514d8981 189
AnnaBridge 156:ff21514d8981 190 /**
AnnaBridge 156:ff21514d8981 191 * @brief Set the time base of the prescaler (WDGTB).
AnnaBridge 156:ff21514d8981 192 * @note Prescaler is used to apply ratio on PCLK clock, so that Watchdog counter
AnnaBridge 156:ff21514d8981 193 * is decremented every (4096 x 2expWDGTB) PCLK cycles
AnnaBridge 156:ff21514d8981 194 * @rmtoll CFR WDGTB LL_WWDG_SetPrescaler
AnnaBridge 156:ff21514d8981 195 * @param WWDGx WWDG Instance
AnnaBridge 156:ff21514d8981 196 * @param Prescaler This parameter can be one of the following values:
AnnaBridge 156:ff21514d8981 197 * @arg @ref LL_WWDG_PRESCALER_1
AnnaBridge 156:ff21514d8981 198 * @arg @ref LL_WWDG_PRESCALER_2
AnnaBridge 156:ff21514d8981 199 * @arg @ref LL_WWDG_PRESCALER_4
AnnaBridge 156:ff21514d8981 200 * @arg @ref LL_WWDG_PRESCALER_8
AnnaBridge 156:ff21514d8981 201 * @retval None
AnnaBridge 156:ff21514d8981 202 */
AnnaBridge 156:ff21514d8981 203 __STATIC_INLINE void LL_WWDG_SetPrescaler(WWDG_TypeDef *WWDGx, uint32_t Prescaler)
AnnaBridge 156:ff21514d8981 204 {
AnnaBridge 156:ff21514d8981 205 MODIFY_REG(WWDGx->CFR, WWDG_CFR_WDGTB, Prescaler);
AnnaBridge 156:ff21514d8981 206 }
AnnaBridge 156:ff21514d8981 207
AnnaBridge 156:ff21514d8981 208 /**
AnnaBridge 156:ff21514d8981 209 * @brief Return current Watchdog Prescaler Value
AnnaBridge 156:ff21514d8981 210 * @rmtoll CFR WDGTB LL_WWDG_GetPrescaler
AnnaBridge 156:ff21514d8981 211 * @param WWDGx WWDG Instance
AnnaBridge 156:ff21514d8981 212 * @retval Returned value can be one of the following values:
AnnaBridge 156:ff21514d8981 213 * @arg @ref LL_WWDG_PRESCALER_1
AnnaBridge 156:ff21514d8981 214 * @arg @ref LL_WWDG_PRESCALER_2
AnnaBridge 156:ff21514d8981 215 * @arg @ref LL_WWDG_PRESCALER_4
AnnaBridge 156:ff21514d8981 216 * @arg @ref LL_WWDG_PRESCALER_8
AnnaBridge 156:ff21514d8981 217 */
AnnaBridge 156:ff21514d8981 218 __STATIC_INLINE uint32_t LL_WWDG_GetPrescaler(WWDG_TypeDef *WWDGx)
AnnaBridge 156:ff21514d8981 219 {
AnnaBridge 156:ff21514d8981 220 return (uint32_t)(READ_BIT(WWDGx->CFR, WWDG_CFR_WDGTB));
AnnaBridge 156:ff21514d8981 221 }
AnnaBridge 156:ff21514d8981 222
AnnaBridge 156:ff21514d8981 223 /**
AnnaBridge 156:ff21514d8981 224 * @brief Set the Watchdog Window value to be compared to the downcounter (7-bits W[6:0]).
AnnaBridge 156:ff21514d8981 225 * @note This window value defines when write in the WWDG_CR register
AnnaBridge 156:ff21514d8981 226 * to program Watchdog counter is allowed.
AnnaBridge 156:ff21514d8981 227 * Watchdog counter value update must occur only when the counter value
AnnaBridge 156:ff21514d8981 228 * is lower than the Watchdog window register value.
AnnaBridge 156:ff21514d8981 229 * Otherwise, a MCU reset is generated if the 7-bit Watchdog counter value
AnnaBridge 156:ff21514d8981 230 * (in the control register) is refreshed before the downcounter has reached
AnnaBridge 156:ff21514d8981 231 * the watchdog window register value.
AnnaBridge 156:ff21514d8981 232 * Physically is possible to set the Window lower then 0x40 but it is not recommended.
AnnaBridge 156:ff21514d8981 233 * To generate an immediate reset, it is possible to set the Counter lower than 0x40.
AnnaBridge 156:ff21514d8981 234 * @rmtoll CFR W LL_WWDG_SetWindow
AnnaBridge 156:ff21514d8981 235 * @param WWDGx WWDG Instance
AnnaBridge 156:ff21514d8981 236 * @param Window 0x00..0x7F (7 bit Window value)
AnnaBridge 156:ff21514d8981 237 * @retval None
AnnaBridge 156:ff21514d8981 238 */
AnnaBridge 156:ff21514d8981 239 __STATIC_INLINE void LL_WWDG_SetWindow(WWDG_TypeDef *WWDGx, uint32_t Window)
AnnaBridge 156:ff21514d8981 240 {
AnnaBridge 156:ff21514d8981 241 MODIFY_REG(WWDGx->CFR, WWDG_CFR_W, Window);
AnnaBridge 156:ff21514d8981 242 }
AnnaBridge 156:ff21514d8981 243
AnnaBridge 156:ff21514d8981 244 /**
AnnaBridge 156:ff21514d8981 245 * @brief Return current Watchdog Window Value (7 bits value)
AnnaBridge 156:ff21514d8981 246 * @rmtoll CFR W LL_WWDG_GetWindow
AnnaBridge 156:ff21514d8981 247 * @param WWDGx WWDG Instance
AnnaBridge 156:ff21514d8981 248 * @retval 7 bit Watchdog Window value
AnnaBridge 156:ff21514d8981 249 */
AnnaBridge 156:ff21514d8981 250 __STATIC_INLINE uint32_t LL_WWDG_GetWindow(WWDG_TypeDef *WWDGx)
AnnaBridge 156:ff21514d8981 251 {
AnnaBridge 156:ff21514d8981 252 return (uint32_t)(READ_BIT(WWDGx->CFR, WWDG_CFR_W));
AnnaBridge 156:ff21514d8981 253 }
AnnaBridge 156:ff21514d8981 254
AnnaBridge 156:ff21514d8981 255 /**
AnnaBridge 156:ff21514d8981 256 * @}
AnnaBridge 156:ff21514d8981 257 */
AnnaBridge 156:ff21514d8981 258
AnnaBridge 156:ff21514d8981 259 /** @defgroup WWDG_LL_EF_FLAG_Management FLAG_Management
AnnaBridge 156:ff21514d8981 260 * @{
AnnaBridge 156:ff21514d8981 261 */
AnnaBridge 156:ff21514d8981 262 /**
AnnaBridge 156:ff21514d8981 263 * @brief Indicates if the WWDG Early Wakeup Interrupt Flag is set or not.
AnnaBridge 156:ff21514d8981 264 * @note This bit is set by hardware when the counter has reached the value 0x40.
AnnaBridge 156:ff21514d8981 265 * It must be cleared by software by writing 0.
AnnaBridge 156:ff21514d8981 266 * A write of 1 has no effect. This bit is also set if the interrupt is not enabled.
AnnaBridge 156:ff21514d8981 267 * @rmtoll SR EWIF LL_WWDG_IsActiveFlag_EWKUP
AnnaBridge 156:ff21514d8981 268 * @param WWDGx WWDG Instance
AnnaBridge 156:ff21514d8981 269 * @retval State of bit (1 or 0).
AnnaBridge 156:ff21514d8981 270 */
AnnaBridge 156:ff21514d8981 271 __STATIC_INLINE uint32_t LL_WWDG_IsActiveFlag_EWKUP(WWDG_TypeDef *WWDGx)
AnnaBridge 156:ff21514d8981 272 {
AnnaBridge 156:ff21514d8981 273 return (READ_BIT(WWDGx->SR, WWDG_SR_EWIF) == (WWDG_SR_EWIF));
AnnaBridge 156:ff21514d8981 274 }
AnnaBridge 156:ff21514d8981 275
AnnaBridge 156:ff21514d8981 276 /**
AnnaBridge 156:ff21514d8981 277 * @brief Clear WWDG Early Wakeup Interrupt Flag (EWIF)
AnnaBridge 156:ff21514d8981 278 * @rmtoll SR EWIF LL_WWDG_ClearFlag_EWKUP
AnnaBridge 156:ff21514d8981 279 * @param WWDGx WWDG Instance
AnnaBridge 156:ff21514d8981 280 * @retval None
AnnaBridge 156:ff21514d8981 281 */
AnnaBridge 156:ff21514d8981 282 __STATIC_INLINE void LL_WWDG_ClearFlag_EWKUP(WWDG_TypeDef *WWDGx)
AnnaBridge 156:ff21514d8981 283 {
AnnaBridge 156:ff21514d8981 284 WRITE_REG(WWDGx->SR, ~WWDG_SR_EWIF);
AnnaBridge 156:ff21514d8981 285 }
AnnaBridge 156:ff21514d8981 286
AnnaBridge 156:ff21514d8981 287 /**
AnnaBridge 156:ff21514d8981 288 * @}
AnnaBridge 156:ff21514d8981 289 */
AnnaBridge 156:ff21514d8981 290
AnnaBridge 156:ff21514d8981 291 /** @defgroup WWDG_LL_EF_IT_Management IT_Management
AnnaBridge 156:ff21514d8981 292 * @{
AnnaBridge 156:ff21514d8981 293 */
AnnaBridge 156:ff21514d8981 294 /**
AnnaBridge 156:ff21514d8981 295 * @brief Enable the Early Wakeup Interrupt.
AnnaBridge 156:ff21514d8981 296 * @note When set, an interrupt occurs whenever the counter reaches value 0x40.
AnnaBridge 156:ff21514d8981 297 * This interrupt is only cleared by hardware after a reset
AnnaBridge 156:ff21514d8981 298 * @rmtoll CFR EWI LL_WWDG_EnableIT_EWKUP
AnnaBridge 156:ff21514d8981 299 * @param WWDGx WWDG Instance
AnnaBridge 156:ff21514d8981 300 * @retval None
AnnaBridge 156:ff21514d8981 301 */
AnnaBridge 156:ff21514d8981 302 __STATIC_INLINE void LL_WWDG_EnableIT_EWKUP(WWDG_TypeDef *WWDGx)
AnnaBridge 156:ff21514d8981 303 {
AnnaBridge 156:ff21514d8981 304 SET_BIT(WWDGx->CFR, WWDG_CFR_EWI);
AnnaBridge 156:ff21514d8981 305 }
AnnaBridge 156:ff21514d8981 306
AnnaBridge 156:ff21514d8981 307 /**
AnnaBridge 156:ff21514d8981 308 * @brief Check if Early Wakeup Interrupt is enabled
AnnaBridge 156:ff21514d8981 309 * @rmtoll CFR EWI LL_WWDG_IsEnabledIT_EWKUP
AnnaBridge 156:ff21514d8981 310 * @param WWDGx WWDG Instance
AnnaBridge 156:ff21514d8981 311 * @retval State of bit (1 or 0).
AnnaBridge 156:ff21514d8981 312 */
AnnaBridge 156:ff21514d8981 313 __STATIC_INLINE uint32_t LL_WWDG_IsEnabledIT_EWKUP(WWDG_TypeDef *WWDGx)
AnnaBridge 156:ff21514d8981 314 {
AnnaBridge 156:ff21514d8981 315 return (READ_BIT(WWDGx->CFR, WWDG_CFR_EWI) == (WWDG_CFR_EWI));
AnnaBridge 156:ff21514d8981 316 }
AnnaBridge 156:ff21514d8981 317
AnnaBridge 156:ff21514d8981 318 /**
AnnaBridge 156:ff21514d8981 319 * @}
AnnaBridge 156:ff21514d8981 320 */
AnnaBridge 156:ff21514d8981 321
AnnaBridge 156:ff21514d8981 322 /**
AnnaBridge 156:ff21514d8981 323 * @}
AnnaBridge 156:ff21514d8981 324 */
AnnaBridge 156:ff21514d8981 325
AnnaBridge 156:ff21514d8981 326 /**
AnnaBridge 156:ff21514d8981 327 * @}
AnnaBridge 156:ff21514d8981 328 */
AnnaBridge 156:ff21514d8981 329
AnnaBridge 156:ff21514d8981 330 #endif /* WWDG */
AnnaBridge 156:ff21514d8981 331
AnnaBridge 156:ff21514d8981 332 /**
AnnaBridge 156:ff21514d8981 333 * @}
AnnaBridge 156:ff21514d8981 334 */
AnnaBridge 156:ff21514d8981 335
AnnaBridge 156:ff21514d8981 336 #ifdef __cplusplus
AnnaBridge 156:ff21514d8981 337 }
AnnaBridge 156:ff21514d8981 338 #endif
AnnaBridge 156:ff21514d8981 339
AnnaBridge 156:ff21514d8981 340 #endif /* __STM32L4xx_LL_WWDG_H */
AnnaBridge 156:ff21514d8981 341
AnnaBridge 156:ff21514d8981 342 /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/