Eric Lewiston / STM32L4xx_HAL_Driver

Hal Drivers for L4

Dependents:   BSP OneHopeOnePrayer FINAL_AUDIO_RECORD AudioDemo

Fork of STM32L4xx_HAL_Driver by Senior Design: Sound Monitor

Inc/stm32l4xx_ll_wwdg.h@2:7aef7655b0a8, 2015-11-25 (annotated)

Committer:
EricLew
Date:
Wed Nov 25 17:30:43 2015 +0000
Revision:
2:7aef7655b0a8
Parent:
0:80ee8f3b695e 
commit;

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EricLew 0:80ee8f3b695e 1 /**
EricLew 0:80ee8f3b695e 2 ******************************************************************************
EricLew 0:80ee8f3b695e 3 * @file stm32l4xx_ll_wwdg.h
EricLew 0:80ee8f3b695e 4 * @author MCD Application Team
EricLew 0:80ee8f3b695e 5 * @version V1.1.0
EricLew 0:80ee8f3b695e 6 * @date 16-September-2015
EricLew 0:80ee8f3b695e 7 * @brief Header file of WWDG LL module.
EricLew 0:80ee8f3b695e 8 ******************************************************************************
EricLew 0:80ee8f3b695e 9 * @attention
EricLew 0:80ee8f3b695e 10 *
EricLew 0:80ee8f3b695e 11 * <h2><center>&copy; COPYRIGHT(c) 2015 STMicroelectronics</center></h2>
EricLew 0:80ee8f3b695e 12 *
EricLew 0:80ee8f3b695e 13 * Redistribution and use in source and binary forms, with or without modification,
EricLew 0:80ee8f3b695e 14 * are permitted provided that the following conditions are met:
EricLew 0:80ee8f3b695e 15 * 1. Redistributions of source code must retain the above copyright notice,
EricLew 0:80ee8f3b695e 16 * this list of conditions and the following disclaimer.
EricLew 0:80ee8f3b695e 17 * 2. Redistributions in binary form must reproduce the above copyright notice,
EricLew 0:80ee8f3b695e 18 * this list of conditions and the following disclaimer in the documentation
EricLew 0:80ee8f3b695e 19 * and/or other materials provided with the distribution.
EricLew 0:80ee8f3b695e 20 * 3. Neither the name of STMicroelectronics nor the names of its contributors
EricLew 0:80ee8f3b695e 21 * may be used to endorse or promote products derived from this software
EricLew 0:80ee8f3b695e 22 * without specific prior written permission.
EricLew 0:80ee8f3b695e 23 *
EricLew 0:80ee8f3b695e 24 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
EricLew 0:80ee8f3b695e 25 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
EricLew 0:80ee8f3b695e 26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
EricLew 0:80ee8f3b695e 27 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
EricLew 0:80ee8f3b695e 28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
EricLew 0:80ee8f3b695e 29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
EricLew 0:80ee8f3b695e 30 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
EricLew 0:80ee8f3b695e 31 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
EricLew 0:80ee8f3b695e 32 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
EricLew 0:80ee8f3b695e 33 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
EricLew 0:80ee8f3b695e 34 *
EricLew 0:80ee8f3b695e 35 ******************************************************************************
EricLew 0:80ee8f3b695e 36 */
EricLew 0:80ee8f3b695e 37
EricLew 0:80ee8f3b695e 38 /* Define to prevent recursive inclusion -------------------------------------*/
EricLew 0:80ee8f3b695e 39 #ifndef __STM32L4xx_LL_WWDG_H
EricLew 0:80ee8f3b695e 40 #define __STM32L4xx_LL_WWDG_H
EricLew 0:80ee8f3b695e 41
EricLew 0:80ee8f3b695e 42 #ifdef __cplusplus
EricLew 0:80ee8f3b695e 43 extern "C" {
EricLew 0:80ee8f3b695e 44 #endif
EricLew 0:80ee8f3b695e 45
EricLew 0:80ee8f3b695e 46 /* Includes ------------------------------------------------------------------*/
EricLew 0:80ee8f3b695e 47 #include "stm32l4xx.h"
EricLew 0:80ee8f3b695e 48
EricLew 0:80ee8f3b695e 49 /** @addtogroup STM32L4xx_LL_Driver
EricLew 0:80ee8f3b695e 50 * @{
EricLew 0:80ee8f3b695e 51 */
EricLew 0:80ee8f3b695e 52
EricLew 0:80ee8f3b695e 53 #if defined (WWDG)
EricLew 0:80ee8f3b695e 54
EricLew 0:80ee8f3b695e 55 /** @defgroup WWDG_LL WWDG
EricLew 0:80ee8f3b695e 56 * @{
EricLew 0:80ee8f3b695e 57 */
EricLew 0:80ee8f3b695e 58
EricLew 0:80ee8f3b695e 59 /* Private types -------------------------------------------------------------*/
EricLew 0:80ee8f3b695e 60 /* Private variables ---------------------------------------------------------*/
EricLew 0:80ee8f3b695e 61
EricLew 0:80ee8f3b695e 62 /* Private constants ---------------------------------------------------------*/
EricLew 0:80ee8f3b695e 63
EricLew 0:80ee8f3b695e 64 /* Private macros ------------------------------------------------------------*/
EricLew 0:80ee8f3b695e 65
EricLew 0:80ee8f3b695e 66 /* Exported types ------------------------------------------------------------*/
EricLew 0:80ee8f3b695e 67 /* Exported constants --------------------------------------------------------*/
EricLew 0:80ee8f3b695e 68 /** @defgroup WWDG_LL_Exported_Constants WWDG Exported Constants
EricLew 0:80ee8f3b695e 69 * @{
EricLew 0:80ee8f3b695e 70 */
EricLew 0:80ee8f3b695e 71
EricLew 0:80ee8f3b695e 72 /** @defgroup WWDG_LL_EC_GET_FLAG Get Flags Defines
EricLew 0:80ee8f3b695e 73 * @brief Flags defines which can be used with LL_WWDG_ReadReg function
EricLew 0:80ee8f3b695e 74 * @{
EricLew 0:80ee8f3b695e 75 */
EricLew 0:80ee8f3b695e 76 #define LL_WWDG_SR_EWIF WWDG_SR_EWIF
EricLew 0:80ee8f3b695e 77 /**
EricLew 0:80ee8f3b695e 78 * @}
EricLew 0:80ee8f3b695e 79 */
EricLew 0:80ee8f3b695e 80
EricLew 0:80ee8f3b695e 81 /** @defgroup WWDG_LL_EC_IT IT Defines
EricLew 0:80ee8f3b695e 82 * @brief IT defines which can be used with LL_WWDG_ReadReg and LL_WWDG_WriteReg functions
EricLew 0:80ee8f3b695e 83 * @{
EricLew 0:80ee8f3b695e 84 */
EricLew 0:80ee8f3b695e 85 #define LL_WWDG_CFR_EWI WWDG_CFR_EWI
EricLew 0:80ee8f3b695e 86 /**
EricLew 0:80ee8f3b695e 87 * @}
EricLew 0:80ee8f3b695e 88 */
EricLew 0:80ee8f3b695e 89
EricLew 0:80ee8f3b695e 90 /** @defgroup WWDG_LL_EC_PRESCALER PRESCALER
EricLew 0:80ee8f3b695e 91 * @{
EricLew 0:80ee8f3b695e 92 */
EricLew 0:80ee8f3b695e 93 #define LL_WWDG_PRESCALER_1 (uint32_t)0x00000000 /*!< WWDG counter clock = (PCLK1/4096)/1 */
EricLew 0:80ee8f3b695e 94 #define LL_WWDG_PRESCALER_2 WWDG_CFR_WDGTB_0 /*!< WWDG counter clock = (PCLK1/4096)/2 */
EricLew 0:80ee8f3b695e 95 #define LL_WWDG_PRESCALER_4 WWDG_CFR_WDGTB_1 /*!< WWDG counter clock = (PCLK1/4096)/4 */
EricLew 0:80ee8f3b695e 96 #define LL_WWDG_PRESCALER_8 (WWDG_CFR_WDGTB_0 | WWDG_CFR_WDGTB_1) /*!< WWDG counter clock = (PCLK1/4096)/8 */
EricLew 0:80ee8f3b695e 97 /**
EricLew 0:80ee8f3b695e 98 * @}
EricLew 0:80ee8f3b695e 99 */
EricLew 0:80ee8f3b695e 100
EricLew 0:80ee8f3b695e 101 /**
EricLew 0:80ee8f3b695e 102 * @}
EricLew 0:80ee8f3b695e 103 */
EricLew 0:80ee8f3b695e 104
EricLew 0:80ee8f3b695e 105 /* Exported macro ------------------------------------------------------------*/
EricLew 0:80ee8f3b695e 106 /** @defgroup WWDG_LL_Exported_Macros WWDG Exported Macros
EricLew 0:80ee8f3b695e 107 * @{
EricLew 0:80ee8f3b695e 108 */
EricLew 0:80ee8f3b695e 109 /** @defgroup WWDG_LL_EM_WRITE_READ Common Write and read registers macros
EricLew 0:80ee8f3b695e 110 * @{
EricLew 0:80ee8f3b695e 111 */
EricLew 0:80ee8f3b695e 112 /**
EricLew 0:80ee8f3b695e 113 * @brief Write a value in WWDG register
EricLew 0:80ee8f3b695e 114 * @param __INSTANCE__ WWDG Instance
EricLew 0:80ee8f3b695e 115 * @param __REG__ Register to be written
EricLew 0:80ee8f3b695e 116 * @param __VALUE__ Value to be written in the register
EricLew 0:80ee8f3b695e 117 * @retval None
EricLew 0:80ee8f3b695e 118 */
EricLew 0:80ee8f3b695e 119 #define LL_WWDG_WriteReg(__INSTANCE__, __REG__, __VALUE__) WRITE_REG(__INSTANCE__->__REG__, (__VALUE__))
EricLew 0:80ee8f3b695e 120
EricLew 0:80ee8f3b695e 121 /**
EricLew 0:80ee8f3b695e 122 * @brief Read a value in WWDG register
EricLew 0:80ee8f3b695e 123 * @param __INSTANCE__ WWDG Instance
EricLew 0:80ee8f3b695e 124 * @param __REG__ Register to be read
EricLew 0:80ee8f3b695e 125 * @retval Register value
EricLew 0:80ee8f3b695e 126 */
EricLew 0:80ee8f3b695e 127 #define LL_WWDG_ReadReg(__INSTANCE__, __REG__) READ_REG(__INSTANCE__->__REG__)
EricLew 0:80ee8f3b695e 128 /**
EricLew 0:80ee8f3b695e 129 * @}
EricLew 0:80ee8f3b695e 130 */
EricLew 0:80ee8f3b695e 131
EricLew 0:80ee8f3b695e 132
EricLew 0:80ee8f3b695e 133 /**
EricLew 0:80ee8f3b695e 134 * @}
EricLew 0:80ee8f3b695e 135 */
EricLew 0:80ee8f3b695e 136
EricLew 0:80ee8f3b695e 137 /* Exported functions --------------------------------------------------------*/
EricLew 0:80ee8f3b695e 138 /** @defgroup WWDG_LL_Exported_Functions WWDG Exported Functions
EricLew 0:80ee8f3b695e 139 * @{
EricLew 0:80ee8f3b695e 140 */
EricLew 0:80ee8f3b695e 141
EricLew 0:80ee8f3b695e 142 /** @defgroup WWDG_LL_EF_Configuration Configuration
EricLew 0:80ee8f3b695e 143 * @{
EricLew 0:80ee8f3b695e 144 */
EricLew 0:80ee8f3b695e 145 /**
EricLew 0:80ee8f3b695e 146 * @brief Enable Window Watchdog. The watchdog is always disabled after a reset.
EricLew 0:80ee8f3b695e 147 * It is enabled by setting the WDGA bit in the WWDG_CR register,
EricLew 0:80ee8f3b695e 148 * then it cannot be disabled again except by a reset.
EricLew 0:80ee8f3b695e 149 * This bit is set by software and only cleared by hardware after a reset.
EricLew 0:80ee8f3b695e 150 * When WDGA = 1, the watchdog can generate a reset.
EricLew 0:80ee8f3b695e 151 * @rmtoll CR WDGA LL_WWDG_Enable
EricLew 0:80ee8f3b695e 152 * @param WWDGx WWDG Instance
EricLew 0:80ee8f3b695e 153 * @retval None
EricLew 0:80ee8f3b695e 154 */
EricLew 0:80ee8f3b695e 155 __STATIC_INLINE void LL_WWDG_Enable(WWDG_TypeDef* WWDGx)
EricLew 0:80ee8f3b695e 156 {
EricLew 0:80ee8f3b695e 157 SET_BIT(WWDGx->CR, WWDG_CR_WDGA);
EricLew 0:80ee8f3b695e 158 }
EricLew 0:80ee8f3b695e 159
EricLew 0:80ee8f3b695e 160 /**
EricLew 0:80ee8f3b695e 161 * @brief Checks if Window Watchdog is enabled
EricLew 0:80ee8f3b695e 162 * @rmtoll CR WDGA LL_WWDG_IsEnabled
EricLew 0:80ee8f3b695e 163 * @param WWDGx WWDG Instance
EricLew 0:80ee8f3b695e 164 * @retval State of bit (1 or 0).
EricLew 0:80ee8f3b695e 165 */
EricLew 0:80ee8f3b695e 166 __STATIC_INLINE uint32_t LL_WWDG_IsEnabled(WWDG_TypeDef* WWDGx)
EricLew 0:80ee8f3b695e 167 {
EricLew 0:80ee8f3b695e 168 return (READ_BIT(WWDGx->CR, WWDG_CR_WDGA) == (WWDG_CR_WDGA));
EricLew 0:80ee8f3b695e 169 }
EricLew 0:80ee8f3b695e 170
EricLew 0:80ee8f3b695e 171 /**
EricLew 0:80ee8f3b695e 172 * @brief Set the Watchdog counter value to provided value (7-bits b6-b0 value).
EricLew 0:80ee8f3b695e 173 * When writing to the WWDG_CR register, always write 1 in the MSB b6 to avoid generating an immediate reset.
EricLew 0:80ee8f3b695e 174 * This counter is decremented every (4096 x 2expWDGTB) PCLK cycles.
EricLew 0:80ee8f3b695e 175 * A reset is produced when it rolls over from 0x40 to 0x3F (b6 becomes cleared)
EricLew 0:80ee8f3b695e 176 * @rmtoll CR T LL_WWDG_SetCounter
EricLew 0:80ee8f3b695e 177 * @param WWDGx WWDG Instance
EricLew 0:80ee8f3b695e 178 * @param Counter 0..0x7F (7 bit counter value)
EricLew 0:80ee8f3b695e 179 * @retval None
EricLew 0:80ee8f3b695e 180 */
EricLew 0:80ee8f3b695e 181 __STATIC_INLINE void LL_WWDG_SetCounter(WWDG_TypeDef* WWDGx, uint32_t Counter)
EricLew 0:80ee8f3b695e 182 {
EricLew 0:80ee8f3b695e 183 MODIFY_REG(WWDGx->CR, WWDG_CR_T, Counter);
EricLew 0:80ee8f3b695e 184 }
EricLew 0:80ee8f3b695e 185
EricLew 0:80ee8f3b695e 186 /**
EricLew 0:80ee8f3b695e 187 * @brief Return current Watchdog Counter Value (7 bits counter value)
EricLew 0:80ee8f3b695e 188 * @rmtoll CR T LL_WWDG_GetCounter
EricLew 0:80ee8f3b695e 189 * @param WWDGx WWDG Instance
EricLew 0:80ee8f3b695e 190 * @retval 7 bit Watchdog Counter value
EricLew 0:80ee8f3b695e 191 */
EricLew 0:80ee8f3b695e 192 __STATIC_INLINE uint32_t LL_WWDG_GetCounter(WWDG_TypeDef* WWDGx)
EricLew 0:80ee8f3b695e 193 {
EricLew 0:80ee8f3b695e 194 return (uint32_t)(READ_BIT(WWDGx->CR, WWDG_CR_T));
EricLew 0:80ee8f3b695e 195 }
EricLew 0:80ee8f3b695e 196
EricLew 0:80ee8f3b695e 197 /**
EricLew 0:80ee8f3b695e 198 * @brief Set the time base of the prescaler (WDGTB).
EricLew 0:80ee8f3b695e 199 * Prescaler is used to apply ratio on PCLK clock, so that Watchdog counter
EricLew 0:80ee8f3b695e 200 * is decremented every (4096 x 2expWDGTB) PCLK cycles
EricLew 0:80ee8f3b695e 201 * @rmtoll CFR WDGTB LL_WWDG_SetPrescaler
EricLew 0:80ee8f3b695e 202 * @param WWDGx WWDG Instance
EricLew 0:80ee8f3b695e 203 * @param Prescaler This parameter can be one of the following values:
EricLew 0:80ee8f3b695e 204 * @arg @ref LL_WWDG_PRESCALER_1
EricLew 0:80ee8f3b695e 205 * @arg @ref LL_WWDG_PRESCALER_2
EricLew 0:80ee8f3b695e 206 * @arg @ref LL_WWDG_PRESCALER_4
EricLew 0:80ee8f3b695e 207 * @arg @ref LL_WWDG_PRESCALER_8
EricLew 0:80ee8f3b695e 208 * @retval None
EricLew 0:80ee8f3b695e 209 */
EricLew 0:80ee8f3b695e 210 __STATIC_INLINE void LL_WWDG_SetPrescaler(WWDG_TypeDef* WWDGx, uint32_t Prescaler)
EricLew 0:80ee8f3b695e 211 {
EricLew 0:80ee8f3b695e 212 MODIFY_REG(WWDGx->CFR, WWDG_CFR_WDGTB, Prescaler);
EricLew 0:80ee8f3b695e 213 }
EricLew 0:80ee8f3b695e 214
EricLew 0:80ee8f3b695e 215 /**
EricLew 0:80ee8f3b695e 216 * @brief Return current Watchdog Prescaler Value
EricLew 0:80ee8f3b695e 217 * @rmtoll CFR WDGTB LL_WWDG_GetPrescaler
EricLew 0:80ee8f3b695e 218 * @param WWDGx WWDG Instance
EricLew 0:80ee8f3b695e 219 * @retval Returned value can be one of the following values:
EricLew 0:80ee8f3b695e 220 * @arg @ref LL_WWDG_PRESCALER_1
EricLew 0:80ee8f3b695e 221 * @arg @ref LL_WWDG_PRESCALER_2
EricLew 0:80ee8f3b695e 222 * @arg @ref LL_WWDG_PRESCALER_4
EricLew 0:80ee8f3b695e 223 * @arg @ref LL_WWDG_PRESCALER_8
EricLew 0:80ee8f3b695e 224 */
EricLew 0:80ee8f3b695e 225 __STATIC_INLINE uint32_t LL_WWDG_GetPrescaler(WWDG_TypeDef* WWDGx)
EricLew 0:80ee8f3b695e 226 {
EricLew 0:80ee8f3b695e 227 return (uint32_t)(READ_BIT(WWDGx->CFR, WWDG_CFR_WDGTB));
EricLew 0:80ee8f3b695e 228 }
EricLew 0:80ee8f3b695e 229
EricLew 0:80ee8f3b695e 230 /**
EricLew 0:80ee8f3b695e 231 * @brief Set the Watchdog Window value to be compared to the downcounter (7-bits b6-b0 value).
EricLew 0:80ee8f3b695e 232 * This window value defines when write in the WWDG_CR register
EricLew 0:80ee8f3b695e 233 * to program Watchdog counter is allowed.
EricLew 0:80ee8f3b695e 234 * Watchdog counter value update must occur only when the counter value
EricLew 0:80ee8f3b695e 235 * is lower than the Watchdog window register value.
EricLew 0:80ee8f3b695e 236 * Otherwise, a MCU reset is generated if the 7-bit Watchdog counter value
EricLew 0:80ee8f3b695e 237 * (in the control register) is refreshed before the downcounter has reached
EricLew 0:80ee8f3b695e 238 * the watchdog window register value.
EricLew 0:80ee8f3b695e 239 * @rmtoll CFR W LL_WWDG_SetWindow
EricLew 0:80ee8f3b695e 240 * @param WWDGx WWDG Instance
EricLew 0:80ee8f3b695e 241 * @param Window 0..0x7F (7 bit Window value)
EricLew 0:80ee8f3b695e 242 * @retval None
EricLew 0:80ee8f3b695e 243 */
EricLew 0:80ee8f3b695e 244 __STATIC_INLINE void LL_WWDG_SetWindow(WWDG_TypeDef* WWDGx, uint32_t Window)
EricLew 0:80ee8f3b695e 245 {
EricLew 0:80ee8f3b695e 246 MODIFY_REG(WWDGx->CFR, WWDG_CFR_W, Window);
EricLew 0:80ee8f3b695e 247 }
EricLew 0:80ee8f3b695e 248
EricLew 0:80ee8f3b695e 249 /**
EricLew 0:80ee8f3b695e 250 * @brief Return current Watchdog Window Value (7 bits value)
EricLew 0:80ee8f3b695e 251 * @rmtoll CFR W LL_WWDG_GetWindow
EricLew 0:80ee8f3b695e 252 * @param WWDGx WWDG Instance
EricLew 0:80ee8f3b695e 253 * @retval 7 bit Watchdog Window value
EricLew 0:80ee8f3b695e 254 */
EricLew 0:80ee8f3b695e 255 __STATIC_INLINE uint32_t LL_WWDG_GetWindow(WWDG_TypeDef* WWDGx)
EricLew 0:80ee8f3b695e 256 {
EricLew 0:80ee8f3b695e 257 return (uint32_t)(READ_BIT(WWDGx->CFR, WWDG_CFR_W));
EricLew 0:80ee8f3b695e 258 }
EricLew 0:80ee8f3b695e 259
EricLew 0:80ee8f3b695e 260 /**
EricLew 0:80ee8f3b695e 261 * @}
EricLew 0:80ee8f3b695e 262 */
EricLew 0:80ee8f3b695e 263
EricLew 0:80ee8f3b695e 264 /** @defgroup WWDG_LL_EF_FLAG_Management FLAG_Management
EricLew 0:80ee8f3b695e 265 * @{
EricLew 0:80ee8f3b695e 266 */
EricLew 0:80ee8f3b695e 267 /**
EricLew 0:80ee8f3b695e 268 * @brief Indicates if the WWDG Early Wakeup Interrupt Flag is set or not.
EricLew 0:80ee8f3b695e 269 * This bit is set by hardware when the counter has reached the value 0x40.
EricLew 0:80ee8f3b695e 270 * It must be cleared by software by writing 0.
EricLew 0:80ee8f3b695e 271 * A write of 1 has no effect. This bit is also set if the interrupt is not enabled.
EricLew 0:80ee8f3b695e 272 * @rmtoll SR EWIF LL_WWDG_IsActiveFlag_EWKUP
EricLew 0:80ee8f3b695e 273 * @param WWDGx WWDG Instance
EricLew 0:80ee8f3b695e 274 * @retval State of bit (1 or 0).
EricLew 0:80ee8f3b695e 275 */
EricLew 0:80ee8f3b695e 276 __STATIC_INLINE uint32_t LL_WWDG_IsActiveFlag_EWKUP(WWDG_TypeDef* WWDGx)
EricLew 0:80ee8f3b695e 277 {
EricLew 0:80ee8f3b695e 278 return (READ_BIT(WWDGx->SR, WWDG_SR_EWIF) == (WWDG_SR_EWIF));
EricLew 0:80ee8f3b695e 279 }
EricLew 0:80ee8f3b695e 280
EricLew 0:80ee8f3b695e 281 /**
EricLew 0:80ee8f3b695e 282 * @brief Clear WWDG Early Wakeup Interrupt Flag (EWIF)
EricLew 0:80ee8f3b695e 283 * @rmtoll SR EWIF LL_WWDG_ClearFlag_EWKUP
EricLew 0:80ee8f3b695e 284 * @param WWDGx WWDG Instance
EricLew 0:80ee8f3b695e 285 * @retval None
EricLew 0:80ee8f3b695e 286 */
EricLew 0:80ee8f3b695e 287 __STATIC_INLINE void LL_WWDG_ClearFlag_EWKUP(WWDG_TypeDef* WWDGx)
EricLew 0:80ee8f3b695e 288 {
EricLew 0:80ee8f3b695e 289 WRITE_REG(WWDGx->SR, ~WWDG_SR_EWIF);
EricLew 0:80ee8f3b695e 290 }
EricLew 0:80ee8f3b695e 291
EricLew 0:80ee8f3b695e 292 /**
EricLew 0:80ee8f3b695e 293 * @}
EricLew 0:80ee8f3b695e 294 */
EricLew 0:80ee8f3b695e 295
EricLew 0:80ee8f3b695e 296 /** @defgroup WWDG_LL_EF_IT_Management IT_Management
EricLew 0:80ee8f3b695e 297 * @{
EricLew 0:80ee8f3b695e 298 */
EricLew 0:80ee8f3b695e 299 /**
EricLew 0:80ee8f3b695e 300 * @brief Enable the Early Wakeup Interrupt. When set, an interrupt occurs
EricLew 0:80ee8f3b695e 301 * whenever the counter reaches the value 0x40.
EricLew 0:80ee8f3b695e 302 * This interrupt is only cleared by hardware after a reset
EricLew 0:80ee8f3b695e 303 * @rmtoll CFR EWI LL_WWDG_EnableIT_EWKUP
EricLew 0:80ee8f3b695e 304 * @param WWDGx WWDG Instance
EricLew 0:80ee8f3b695e 305 * @retval None
EricLew 0:80ee8f3b695e 306 */
EricLew 0:80ee8f3b695e 307 __STATIC_INLINE void LL_WWDG_EnableIT_EWKUP(WWDG_TypeDef* WWDGx)
EricLew 0:80ee8f3b695e 308 {
EricLew 0:80ee8f3b695e 309 SET_BIT(WWDGx->CFR, WWDG_CFR_EWI);
EricLew 0:80ee8f3b695e 310 }
EricLew 0:80ee8f3b695e 311
EricLew 0:80ee8f3b695e 312 /**
EricLew 0:80ee8f3b695e 313 * @brief Check if Early Wakeup Interrupt is enabled
EricLew 0:80ee8f3b695e 314 * @rmtoll CFR EWI LL_WWDG_IsEnabledIT_EWKUP
EricLew 0:80ee8f3b695e 315 * @param WWDGx WWDG Instance
EricLew 0:80ee8f3b695e 316 * @retval State of bit (1 or 0).
EricLew 0:80ee8f3b695e 317 */
EricLew 0:80ee8f3b695e 318 __STATIC_INLINE uint32_t LL_WWDG_IsEnabledIT_EWKUP(WWDG_TypeDef* WWDGx)
EricLew 0:80ee8f3b695e 319 {
EricLew 0:80ee8f3b695e 320 return (READ_BIT(WWDGx->CFR, WWDG_CFR_EWI) == (WWDG_CFR_EWI));
EricLew 0:80ee8f3b695e 321 }
EricLew 0:80ee8f3b695e 322
EricLew 0:80ee8f3b695e 323 /**
EricLew 0:80ee8f3b695e 324 * @}
EricLew 0:80ee8f3b695e 325 */
EricLew 0:80ee8f3b695e 326
EricLew 0:80ee8f3b695e 327
EricLew 0:80ee8f3b695e 328 /**
EricLew 0:80ee8f3b695e 329 * @}
EricLew 0:80ee8f3b695e 330 */
EricLew 0:80ee8f3b695e 331
EricLew 0:80ee8f3b695e 332 /**
EricLew 0:80ee8f3b695e 333 * @}
EricLew 0:80ee8f3b695e 334 */
EricLew 0:80ee8f3b695e 335
EricLew 0:80ee8f3b695e 336 #endif /* WWDG */
EricLew 0:80ee8f3b695e 337
EricLew 0:80ee8f3b695e 338 /**
EricLew 0:80ee8f3b695e 339 * @}
EricLew 0:80ee8f3b695e 340 */
EricLew 0:80ee8f3b695e 341
EricLew 0:80ee8f3b695e 342 #ifdef __cplusplus
EricLew 0:80ee8f3b695e 343 }
EricLew 0:80ee8f3b695e 344 #endif
EricLew 0:80ee8f3b695e 345
EricLew 0:80ee8f3b695e 346 #endif /* __STM32L4xx_LL_WWDG_H */
EricLew 0:80ee8f3b695e 347
EricLew 0:80ee8f3b695e 348 /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
EricLew 0:80ee8f3b695e 349