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targets/TARGET_STM/TARGET_STM32L0/device/stm32l0xx_ll_wwdg.h@189:f392fc9709a3, 2019-02-20 (annotated)

Committer:
AnnaBridge
Date:
Wed Feb 20 22:31:08 2019 +0000
Revision:
189:f392fc9709a3
Parent:
186:707f6e361f3e 
mbed library release version 165

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Kojto 158:b23ee177fd68 1 /**
Kojto 158:b23ee177fd68 2 ******************************************************************************
Kojto 158:b23ee177fd68 3 * @file stm32l0xx_ll_wwdg.h
Kojto 158:b23ee177fd68 4 * @author MCD Application Team
Kojto 158:b23ee177fd68 5 * @brief Header file of WWDG LL module.
Kojto 158:b23ee177fd68 6 ******************************************************************************
Kojto 158:b23ee177fd68 7 * @attention
Kojto 158:b23ee177fd68 8 *
Kojto 158:b23ee177fd68 9 * <h2><center>&copy; COPYRIGHT(c) 2016 STMicroelectronics</center></h2>
Kojto 158:b23ee177fd68 10 *
Kojto 158:b23ee177fd68 11 * Redistribution and use in source and binary forms, with or without modification,
Kojto 158:b23ee177fd68 12 * are permitted provided that the following conditions are met:
Kojto 158:b23ee177fd68 13 * 1. Redistributions of source code must retain the above copyright notice,
Kojto 158:b23ee177fd68 14 * this list of conditions and the following disclaimer.
Kojto 158:b23ee177fd68 15 * 2. Redistributions in binary form must reproduce the above copyright notice,
Kojto 158:b23ee177fd68 16 * this list of conditions and the following disclaimer in the documentation
Kojto 158:b23ee177fd68 17 * and/or other materials provided with the distribution.
Kojto 158:b23ee177fd68 18 * 3. Neither the name of STMicroelectronics nor the names of its contributors
Kojto 158:b23ee177fd68 19 * may be used to endorse or promote products derived from this software
Kojto 158:b23ee177fd68 20 * without specific prior written permission.
Kojto 158:b23ee177fd68 21 *
Kojto 158:b23ee177fd68 22 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
Kojto 158:b23ee177fd68 23 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
Kojto 158:b23ee177fd68 24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
Kojto 158:b23ee177fd68 25 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
Kojto 158:b23ee177fd68 26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
Kojto 158:b23ee177fd68 27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
Kojto 158:b23ee177fd68 28 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
Kojto 158:b23ee177fd68 29 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
Kojto 158:b23ee177fd68 30 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
Kojto 158:b23ee177fd68 31 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
Kojto 158:b23ee177fd68 32 *
Kojto 158:b23ee177fd68 33 ******************************************************************************
Kojto 158:b23ee177fd68 34 */
Kojto 158:b23ee177fd68 35
Kojto 158:b23ee177fd68 36 /* Define to prevent recursive inclusion -------------------------------------*/
Kojto 158:b23ee177fd68 37 #ifndef __STM32L0xx_LL_WWDG_H
Kojto 158:b23ee177fd68 38 #define __STM32L0xx_LL_WWDG_H
Kojto 158:b23ee177fd68 39
Kojto 158:b23ee177fd68 40 #ifdef __cplusplus
Kojto 158:b23ee177fd68 41 extern "C" {
Kojto 158:b23ee177fd68 42 #endif
Kojto 158:b23ee177fd68 43
Kojto 158:b23ee177fd68 44 /* Includes ------------------------------------------------------------------*/
Kojto 158:b23ee177fd68 45 #include "stm32l0xx.h"
Kojto 158:b23ee177fd68 46
Kojto 158:b23ee177fd68 47 /** @addtogroup STM32L0xx_LL_Driver
Kojto 158:b23ee177fd68 48 * @{
Kojto 158:b23ee177fd68 49 */
Kojto 158:b23ee177fd68 50
Kojto 158:b23ee177fd68 51 #if defined (WWDG)
Kojto 158:b23ee177fd68 52
Kojto 158:b23ee177fd68 53 /** @defgroup WWDG_LL WWDG
Kojto 158:b23ee177fd68 54 * @{
Kojto 158:b23ee177fd68 55 */
Kojto 158:b23ee177fd68 56
Kojto 158:b23ee177fd68 57 /* Private types -------------------------------------------------------------*/
Kojto 158:b23ee177fd68 58 /* Private variables ---------------------------------------------------------*/
Kojto 158:b23ee177fd68 59
Kojto 158:b23ee177fd68 60 /* Private constants ---------------------------------------------------------*/
Kojto 158:b23ee177fd68 61
Kojto 158:b23ee177fd68 62 /* Private macros ------------------------------------------------------------*/
Kojto 158:b23ee177fd68 63
Kojto 158:b23ee177fd68 64 /* Exported types ------------------------------------------------------------*/
Kojto 158:b23ee177fd68 65 /* Exported constants --------------------------------------------------------*/
Kojto 158:b23ee177fd68 66 /** @defgroup WWDG_LL_Exported_Constants WWDG Exported Constants
Kojto 158:b23ee177fd68 67 * @{
Kojto 158:b23ee177fd68 68 */
Kojto 158:b23ee177fd68 69
Kojto 158:b23ee177fd68 70
Kojto 158:b23ee177fd68 71 /** @defgroup WWDG_LL_EC_IT IT Defines
Kojto 158:b23ee177fd68 72 * @brief IT defines which can be used with LL_WWDG_ReadReg and LL_WWDG_WriteReg functions
Kojto 158:b23ee177fd68 73 * @{
Kojto 158:b23ee177fd68 74 */
Kojto 158:b23ee177fd68 75 #define LL_WWDG_CFR_EWI WWDG_CFR_EWI
Kojto 158:b23ee177fd68 76 /**
Kojto 158:b23ee177fd68 77 * @}
Kojto 158:b23ee177fd68 78 */
Kojto 158:b23ee177fd68 79
Kojto 158:b23ee177fd68 80 /** @defgroup WWDG_LL_EC_PRESCALER PRESCALER
Kojto 158:b23ee177fd68 81 * @{
Kojto 158:b23ee177fd68 82 */
Kojto 158:b23ee177fd68 83 #define LL_WWDG_PRESCALER_1 (uint32_t)0x00000000U /*!< WWDG counter clock = (PCLK1/4096)/1 */
Kojto 158:b23ee177fd68 84 #define LL_WWDG_PRESCALER_2 WWDG_CFR_WDGTB_0 /*!< WWDG counter clock = (PCLK1/4096)/2 */
Kojto 158:b23ee177fd68 85 #define LL_WWDG_PRESCALER_4 WWDG_CFR_WDGTB_1 /*!< WWDG counter clock = (PCLK1/4096)/4 */
Kojto 158:b23ee177fd68 86 #define LL_WWDG_PRESCALER_8 (WWDG_CFR_WDGTB_0 | WWDG_CFR_WDGTB_1) /*!< WWDG counter clock = (PCLK1/4096)/8 */
Kojto 158:b23ee177fd68 87 /**
Kojto 158:b23ee177fd68 88 * @}
Kojto 158:b23ee177fd68 89 */
Kojto 158:b23ee177fd68 90
Kojto 158:b23ee177fd68 91 /**
Kojto 158:b23ee177fd68 92 * @}
Kojto 158:b23ee177fd68 93 */
Kojto 158:b23ee177fd68 94
Kojto 158:b23ee177fd68 95 /* Exported macro ------------------------------------------------------------*/
Kojto 158:b23ee177fd68 96 /** @defgroup WWDG_LL_Exported_Macros WWDG Exported Macros
Kojto 158:b23ee177fd68 97 * @{
Kojto 158:b23ee177fd68 98 */
Kojto 158:b23ee177fd68 99 /** @defgroup WWDG_LL_EM_WRITE_READ Common Write and read registers macros
Kojto 158:b23ee177fd68 100 * @{
Kojto 158:b23ee177fd68 101 */
Kojto 158:b23ee177fd68 102 /**
Kojto 158:b23ee177fd68 103 * @brief Write a value in WWDG register
Kojto 158:b23ee177fd68 104 * @param __INSTANCE__ WWDG Instance
Kojto 158:b23ee177fd68 105 * @param __REG__ Register to be written
Kojto 158:b23ee177fd68 106 * @param __VALUE__ Value to be written in the register
Kojto 158:b23ee177fd68 107 * @retval None
Kojto 158:b23ee177fd68 108 */
Kojto 158:b23ee177fd68 109 #define LL_WWDG_WriteReg(__INSTANCE__, __REG__, __VALUE__) WRITE_REG(__INSTANCE__->__REG__, (__VALUE__))
Kojto 158:b23ee177fd68 110
Kojto 158:b23ee177fd68 111 /**
Kojto 158:b23ee177fd68 112 * @brief Read a value in WWDG register
Kojto 158:b23ee177fd68 113 * @param __INSTANCE__ WWDG Instance
Kojto 158:b23ee177fd68 114 * @param __REG__ Register to be read
Kojto 158:b23ee177fd68 115 * @retval Register value
Kojto 158:b23ee177fd68 116 */
Kojto 158:b23ee177fd68 117 #define LL_WWDG_ReadReg(__INSTANCE__, __REG__) READ_REG(__INSTANCE__->__REG__)
Kojto 158:b23ee177fd68 118 /**
Kojto 158:b23ee177fd68 119 * @}
Kojto 158:b23ee177fd68 120 */
Kojto 158:b23ee177fd68 121
Kojto 158:b23ee177fd68 122
Kojto 158:b23ee177fd68 123 /**
Kojto 158:b23ee177fd68 124 * @}
Kojto 158:b23ee177fd68 125 */
Kojto 158:b23ee177fd68 126
Kojto 158:b23ee177fd68 127 /* Exported functions --------------------------------------------------------*/
Kojto 158:b23ee177fd68 128 /** @defgroup WWDG_LL_Exported_Functions WWDG Exported Functions
Kojto 158:b23ee177fd68 129 * @{
Kojto 158:b23ee177fd68 130 */
Kojto 158:b23ee177fd68 131
Kojto 158:b23ee177fd68 132 /** @defgroup WWDG_LL_EF_Configuration Configuration
Kojto 158:b23ee177fd68 133 * @{
Kojto 158:b23ee177fd68 134 */
Kojto 158:b23ee177fd68 135 /**
Kojto 158:b23ee177fd68 136 * @brief Enable Window Watchdog. The watchdog is always disabled after a reset.
Kojto 158:b23ee177fd68 137 * @note It is enabled by setting the WDGA bit in the WWDG_CR register,
Kojto 158:b23ee177fd68 138 * then it cannot be disabled again except by a reset.
Kojto 158:b23ee177fd68 139 * This bit is set by software and only cleared by hardware after a reset.
Kojto 158:b23ee177fd68 140 * When WDGA = 1, the watchdog can generate a reset.
Kojto 158:b23ee177fd68 141 * @rmtoll CR WDGA LL_WWDG_Enable
Kojto 158:b23ee177fd68 142 * @param WWDGx WWDG Instance
Kojto 158:b23ee177fd68 143 * @retval None
Kojto 158:b23ee177fd68 144 */
Kojto 158:b23ee177fd68 145 __STATIC_INLINE void LL_WWDG_Enable(WWDG_TypeDef *WWDGx)
Kojto 158:b23ee177fd68 146 {
Kojto 158:b23ee177fd68 147 SET_BIT(WWDGx->CR, WWDG_CR_WDGA);
Kojto 158:b23ee177fd68 148 }
Kojto 158:b23ee177fd68 149
Kojto 158:b23ee177fd68 150 /**
Kojto 158:b23ee177fd68 151 * @brief Checks if Window Watchdog is enabled
Kojto 158:b23ee177fd68 152 * @rmtoll CR WDGA LL_WWDG_IsEnabled
Kojto 158:b23ee177fd68 153 * @param WWDGx WWDG Instance
Kojto 158:b23ee177fd68 154 * @retval State of bit (1 or 0).
Kojto 158:b23ee177fd68 155 */
Kojto 158:b23ee177fd68 156 __STATIC_INLINE uint32_t LL_WWDG_IsEnabled(WWDG_TypeDef *WWDGx)
Kojto 158:b23ee177fd68 157 {
Kojto 158:b23ee177fd68 158 return (READ_BIT(WWDGx->CR, WWDG_CR_WDGA) == (WWDG_CR_WDGA));
Kojto 158:b23ee177fd68 159 }
Kojto 158:b23ee177fd68 160
Kojto 158:b23ee177fd68 161 /**
Kojto 158:b23ee177fd68 162 * @brief Set the Watchdog counter value to provided value (7-bits T[6:0])
Kojto 158:b23ee177fd68 163 * @note When writing to the WWDG_CR register, always write 1 in the MSB b6 to avoid generating an immediate reset
Kojto 158:b23ee177fd68 164 * This counter is decremented every (4096 x 2expWDGTB) PCLK cycles
Kojto 158:b23ee177fd68 165 * A reset is produced when it rolls over from 0x40 to 0x3F (bit T6 becomes cleared)
Kojto 158:b23ee177fd68 166 * Setting the counter lower then 0x40 causes an immediate reset (if WWDG enabled)
Kojto 158:b23ee177fd68 167 * @rmtoll CR T LL_WWDG_SetCounter
Kojto 158:b23ee177fd68 168 * @param WWDGx WWDG Instance
Kojto 158:b23ee177fd68 169 * @param Counter 0..0x7F (7 bit counter value)
Kojto 158:b23ee177fd68 170 * @retval None
Kojto 158:b23ee177fd68 171 */
Kojto 158:b23ee177fd68 172 __STATIC_INLINE void LL_WWDG_SetCounter(WWDG_TypeDef *WWDGx, uint32_t Counter)
Kojto 158:b23ee177fd68 173 {
Kojto 158:b23ee177fd68 174 MODIFY_REG(WWDGx->CR, WWDG_CR_T, Counter);
Kojto 158:b23ee177fd68 175 }
Kojto 158:b23ee177fd68 176
Kojto 158:b23ee177fd68 177 /**
Kojto 158:b23ee177fd68 178 * @brief Return current Watchdog Counter Value (7 bits counter value)
Kojto 158:b23ee177fd68 179 * @rmtoll CR T LL_WWDG_GetCounter
Kojto 158:b23ee177fd68 180 * @param WWDGx WWDG Instance
Kojto 158:b23ee177fd68 181 * @retval 7 bit Watchdog Counter value
Kojto 158:b23ee177fd68 182 */
Kojto 158:b23ee177fd68 183 __STATIC_INLINE uint32_t LL_WWDG_GetCounter(WWDG_TypeDef *WWDGx)
Kojto 158:b23ee177fd68 184 {
Kojto 158:b23ee177fd68 185 return (uint32_t)(READ_BIT(WWDGx->CR, WWDG_CR_T));
Kojto 158:b23ee177fd68 186 }
Kojto 158:b23ee177fd68 187
Kojto 158:b23ee177fd68 188 /**
Kojto 158:b23ee177fd68 189 * @brief Set the time base of the prescaler (WDGTB).
Kojto 158:b23ee177fd68 190 * @note Prescaler is used to apply ratio on PCLK clock, so that Watchdog counter
Kojto 158:b23ee177fd68 191 * is decremented every (4096 x 2expWDGTB) PCLK cycles
Kojto 158:b23ee177fd68 192 * @rmtoll CFR WDGTB LL_WWDG_SetPrescaler
Kojto 158:b23ee177fd68 193 * @param WWDGx WWDG Instance
Kojto 158:b23ee177fd68 194 * @param Prescaler This parameter can be one of the following values:
Kojto 158:b23ee177fd68 195 * @arg @ref LL_WWDG_PRESCALER_1
Kojto 158:b23ee177fd68 196 * @arg @ref LL_WWDG_PRESCALER_2
Kojto 158:b23ee177fd68 197 * @arg @ref LL_WWDG_PRESCALER_4
Kojto 158:b23ee177fd68 198 * @arg @ref LL_WWDG_PRESCALER_8
Kojto 158:b23ee177fd68 199 * @retval None
Kojto 158:b23ee177fd68 200 */
Kojto 158:b23ee177fd68 201 __STATIC_INLINE void LL_WWDG_SetPrescaler(WWDG_TypeDef *WWDGx, uint32_t Prescaler)
Kojto 158:b23ee177fd68 202 {
Kojto 158:b23ee177fd68 203 MODIFY_REG(WWDGx->CFR, WWDG_CFR_WDGTB, Prescaler);
Kojto 158:b23ee177fd68 204 }
Kojto 158:b23ee177fd68 205
Kojto 158:b23ee177fd68 206 /**
Kojto 158:b23ee177fd68 207 * @brief Return current Watchdog Prescaler Value
Kojto 158:b23ee177fd68 208 * @rmtoll CFR WDGTB LL_WWDG_GetPrescaler
Kojto 158:b23ee177fd68 209 * @param WWDGx WWDG Instance
Kojto 158:b23ee177fd68 210 * @retval Returned value can be one of the following values:
Kojto 158:b23ee177fd68 211 * @arg @ref LL_WWDG_PRESCALER_1
Kojto 158:b23ee177fd68 212 * @arg @ref LL_WWDG_PRESCALER_2
Kojto 158:b23ee177fd68 213 * @arg @ref LL_WWDG_PRESCALER_4
Kojto 158:b23ee177fd68 214 * @arg @ref LL_WWDG_PRESCALER_8
Kojto 158:b23ee177fd68 215 */
Kojto 158:b23ee177fd68 216 __STATIC_INLINE uint32_t LL_WWDG_GetPrescaler(WWDG_TypeDef *WWDGx)
Kojto 158:b23ee177fd68 217 {
Kojto 158:b23ee177fd68 218 return (uint32_t)(READ_BIT(WWDGx->CFR, WWDG_CFR_WDGTB));
Kojto 158:b23ee177fd68 219 }
Kojto 158:b23ee177fd68 220
Kojto 158:b23ee177fd68 221 /**
Kojto 158:b23ee177fd68 222 * @brief Set the Watchdog Window value to be compared to the downcounter (7-bits W[6:0]).
Kojto 158:b23ee177fd68 223 * @note This window value defines when write in the WWDG_CR register
Kojto 158:b23ee177fd68 224 * to program Watchdog counter is allowed.
Kojto 158:b23ee177fd68 225 * Watchdog counter value update must occur only when the counter value
Kojto 158:b23ee177fd68 226 * is lower than the Watchdog window register value.
Kojto 158:b23ee177fd68 227 * Otherwise, a MCU reset is generated if the 7-bit Watchdog counter value
Kojto 158:b23ee177fd68 228 * (in the control register) is refreshed before the downcounter has reached
Kojto 158:b23ee177fd68 229 * the watchdog window register value.
Kojto 158:b23ee177fd68 230 * Physically is possible to set the Window lower then 0x40 but it is not recommended.
Kojto 158:b23ee177fd68 231 * To generate an immediate reset, it is possible to set the Counter lower than 0x40.
Kojto 158:b23ee177fd68 232 * @rmtoll CFR W LL_WWDG_SetWindow
Kojto 158:b23ee177fd68 233 * @param WWDGx WWDG Instance
Kojto 158:b23ee177fd68 234 * @param Window 0x00..0x7F (7 bit Window value)
Kojto 158:b23ee177fd68 235 * @retval None
Kojto 158:b23ee177fd68 236 */
Kojto 158:b23ee177fd68 237 __STATIC_INLINE void LL_WWDG_SetWindow(WWDG_TypeDef *WWDGx, uint32_t Window)
Kojto 158:b23ee177fd68 238 {
Kojto 158:b23ee177fd68 239 MODIFY_REG(WWDGx->CFR, WWDG_CFR_W, Window);
Kojto 158:b23ee177fd68 240 }
Kojto 158:b23ee177fd68 241
Kojto 158:b23ee177fd68 242 /**
Kojto 158:b23ee177fd68 243 * @brief Return current Watchdog Window Value (7 bits value)
Kojto 158:b23ee177fd68 244 * @rmtoll CFR W LL_WWDG_GetWindow
Kojto 158:b23ee177fd68 245 * @param WWDGx WWDG Instance
Kojto 158:b23ee177fd68 246 * @retval 7 bit Watchdog Window value
Kojto 158:b23ee177fd68 247 */
Kojto 158:b23ee177fd68 248 __STATIC_INLINE uint32_t LL_WWDG_GetWindow(WWDG_TypeDef *WWDGx)
Kojto 158:b23ee177fd68 249 {
Kojto 158:b23ee177fd68 250 return (uint32_t)(READ_BIT(WWDGx->CFR, WWDG_CFR_W));
Kojto 158:b23ee177fd68 251 }
Kojto 158:b23ee177fd68 252
Kojto 158:b23ee177fd68 253 /**
Kojto 158:b23ee177fd68 254 * @}
Kojto 158:b23ee177fd68 255 */
Kojto 158:b23ee177fd68 256
Kojto 158:b23ee177fd68 257 /** @defgroup WWDG_LL_EF_FLAG_Management FLAG_Management
Kojto 158:b23ee177fd68 258 * @{
Kojto 158:b23ee177fd68 259 */
Kojto 158:b23ee177fd68 260 /**
Kojto 158:b23ee177fd68 261 * @brief Indicates if the WWDG Early Wakeup Interrupt Flag is set or not.
Kojto 158:b23ee177fd68 262 * @note This bit is set by hardware when the counter has reached the value 0x40.
Kojto 158:b23ee177fd68 263 * It must be cleared by software by writing 0.
Kojto 158:b23ee177fd68 264 * A write of 1 has no effect. This bit is also set if the interrupt is not enabled.
Kojto 158:b23ee177fd68 265 * @rmtoll SR EWIF LL_WWDG_IsActiveFlag_EWKUP
Kojto 158:b23ee177fd68 266 * @param WWDGx WWDG Instance
Kojto 158:b23ee177fd68 267 * @retval State of bit (1 or 0).
Kojto 158:b23ee177fd68 268 */
Kojto 158:b23ee177fd68 269 __STATIC_INLINE uint32_t LL_WWDG_IsActiveFlag_EWKUP(WWDG_TypeDef *WWDGx)
Kojto 158:b23ee177fd68 270 {
Kojto 158:b23ee177fd68 271 return (READ_BIT(WWDGx->SR, WWDG_SR_EWIF) == (WWDG_SR_EWIF));
Kojto 158:b23ee177fd68 272 }
Kojto 158:b23ee177fd68 273
Kojto 158:b23ee177fd68 274 /**
Kojto 158:b23ee177fd68 275 * @brief Clear WWDG Early Wakeup Interrupt Flag (EWIF)
Kojto 158:b23ee177fd68 276 * @rmtoll SR EWIF LL_WWDG_ClearFlag_EWKUP
Kojto 158:b23ee177fd68 277 * @param WWDGx WWDG Instance
Kojto 158:b23ee177fd68 278 * @retval None
Kojto 158:b23ee177fd68 279 */
Kojto 158:b23ee177fd68 280 __STATIC_INLINE void LL_WWDG_ClearFlag_EWKUP(WWDG_TypeDef *WWDGx)
Kojto 158:b23ee177fd68 281 {
Kojto 158:b23ee177fd68 282 WRITE_REG(WWDGx->SR, ~WWDG_SR_EWIF);
Kojto 158:b23ee177fd68 283 }
Kojto 158:b23ee177fd68 284
Kojto 158:b23ee177fd68 285 /**
Kojto 158:b23ee177fd68 286 * @}
Kojto 158:b23ee177fd68 287 */
Kojto 158:b23ee177fd68 288
Kojto 158:b23ee177fd68 289 /** @defgroup WWDG_LL_EF_IT_Management IT_Management
Kojto 158:b23ee177fd68 290 * @{
Kojto 158:b23ee177fd68 291 */
Kojto 158:b23ee177fd68 292 /**
Kojto 158:b23ee177fd68 293 * @brief Enable the Early Wakeup Interrupt.
Kojto 158:b23ee177fd68 294 * @note When set, an interrupt occurs whenever the counter reaches value 0x40.
Kojto 158:b23ee177fd68 295 * This interrupt is only cleared by hardware after a reset
Kojto 158:b23ee177fd68 296 * @rmtoll CFR EWI LL_WWDG_EnableIT_EWKUP
Kojto 158:b23ee177fd68 297 * @param WWDGx WWDG Instance
Kojto 158:b23ee177fd68 298 * @retval None
Kojto 158:b23ee177fd68 299 */
Kojto 158:b23ee177fd68 300 __STATIC_INLINE void LL_WWDG_EnableIT_EWKUP(WWDG_TypeDef *WWDGx)
Kojto 158:b23ee177fd68 301 {
Kojto 158:b23ee177fd68 302 SET_BIT(WWDGx->CFR, WWDG_CFR_EWI);
Kojto 158:b23ee177fd68 303 }
Kojto 158:b23ee177fd68 304
Kojto 158:b23ee177fd68 305 /**
Kojto 158:b23ee177fd68 306 * @brief Check if Early Wakeup Interrupt is enabled
Kojto 158:b23ee177fd68 307 * @rmtoll CFR EWI LL_WWDG_IsEnabledIT_EWKUP
Kojto 158:b23ee177fd68 308 * @param WWDGx WWDG Instance
Kojto 158:b23ee177fd68 309 * @retval State of bit (1 or 0).
Kojto 158:b23ee177fd68 310 */
Kojto 158:b23ee177fd68 311 __STATIC_INLINE uint32_t LL_WWDG_IsEnabledIT_EWKUP(WWDG_TypeDef *WWDGx)
Kojto 158:b23ee177fd68 312 {
Kojto 158:b23ee177fd68 313 return (READ_BIT(WWDGx->CFR, WWDG_CFR_EWI) == (WWDG_CFR_EWI));
Kojto 158:b23ee177fd68 314 }
Kojto 158:b23ee177fd68 315
Kojto 158:b23ee177fd68 316 /**
Kojto 158:b23ee177fd68 317 * @}
Kojto 158:b23ee177fd68 318 */
Kojto 158:b23ee177fd68 319
Kojto 158:b23ee177fd68 320 /**
Kojto 158:b23ee177fd68 321 * @}
Kojto 158:b23ee177fd68 322 */
Kojto 158:b23ee177fd68 323
Kojto 158:b23ee177fd68 324 /**
Kojto 158:b23ee177fd68 325 * @}
Kojto 158:b23ee177fd68 326 */
Kojto 158:b23ee177fd68 327
Kojto 158:b23ee177fd68 328 #endif /* WWDG */
Kojto 158:b23ee177fd68 329
Kojto 158:b23ee177fd68 330 /**
Kojto 158:b23ee177fd68 331 * @}
Kojto 158:b23ee177fd68 332 */
Kojto 158:b23ee177fd68 333
Kojto 158:b23ee177fd68 334 #ifdef __cplusplus
Kojto 158:b23ee177fd68 335 }
Kojto 158:b23ee177fd68 336 #endif
Kojto 158:b23ee177fd68 337
Kojto 158:b23ee177fd68 338 #endif /* __STM32L0xx_LL_WWDG_H */
Kojto 158:b23ee177fd68 339
Kojto 158:b23ee177fd68 340 /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/