Takaaki Numai / mbed-dev

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Dependents:   Hobbyking_Cheetah_0511

targets/TARGET_STM/TARGET_STM32F4/device/stm32f4xx_ll_lptim.c@0:85b3fd62ea1a, 2020-03-16 (annotated)

Committer:
NYX
Date:
Mon Mar 16 06:35:48 2020 +0000
Revision:
0:85b3fd62ea1a
reinport to mbed;

Who changed what in which revision?

UserRevisionLine numberNew contents of line
NYX 0:85b3fd62ea1a 1 /**
NYX 0:85b3fd62ea1a 2 ******************************************************************************
NYX 0:85b3fd62ea1a 3 * @file stm32f4xx_ll_lptim.c
NYX 0:85b3fd62ea1a 4 * @author MCD Application Team
NYX 0:85b3fd62ea1a 5 * @version V1.7.1
NYX 0:85b3fd62ea1a 6 * @date 14-April-2017
NYX 0:85b3fd62ea1a 7 * @brief LPTIM LL module driver.
NYX 0:85b3fd62ea1a 8 ******************************************************************************
NYX 0:85b3fd62ea1a 9 * @attention
NYX 0:85b3fd62ea1a 10 *
NYX 0:85b3fd62ea1a 11 * <h2><center>&copy; COPYRIGHT(c) 2017 STMicroelectronics</center></h2>
NYX 0:85b3fd62ea1a 12 *
NYX 0:85b3fd62ea1a 13 * Redistribution and use in source and binary forms, with or without modification,
NYX 0:85b3fd62ea1a 14 * are permitted provided that the following conditions are met:
NYX 0:85b3fd62ea1a 15 * 1. Redistributions of source code must retain the above copyright notice,
NYX 0:85b3fd62ea1a 16 * this list of conditions and the following disclaimer.
NYX 0:85b3fd62ea1a 17 * 2. Redistributions in binary form must reproduce the above copyright notice,
NYX 0:85b3fd62ea1a 18 * this list of conditions and the following disclaimer in the documentation
NYX 0:85b3fd62ea1a 19 * and/or other materials provided with the distribution.
NYX 0:85b3fd62ea1a 20 * 3. Neither the name of STMicroelectronics nor the names of its contributors
NYX 0:85b3fd62ea1a 21 * may be used to endorse or promote products derived from this software
NYX 0:85b3fd62ea1a 22 * without specific prior written permission.
NYX 0:85b3fd62ea1a 23 *
NYX 0:85b3fd62ea1a 24 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
NYX 0:85b3fd62ea1a 25 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
NYX 0:85b3fd62ea1a 26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
NYX 0:85b3fd62ea1a 27 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
NYX 0:85b3fd62ea1a 28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
NYX 0:85b3fd62ea1a 29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
NYX 0:85b3fd62ea1a 30 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
NYX 0:85b3fd62ea1a 31 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
NYX 0:85b3fd62ea1a 32 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
NYX 0:85b3fd62ea1a 33 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
NYX 0:85b3fd62ea1a 34 *
NYX 0:85b3fd62ea1a 35 ******************************************************************************
NYX 0:85b3fd62ea1a 36 */
NYX 0:85b3fd62ea1a 37 #if defined(USE_FULL_LL_DRIVER)
NYX 0:85b3fd62ea1a 38
NYX 0:85b3fd62ea1a 39 /* Includes ------------------------------------------------------------------*/
NYX 0:85b3fd62ea1a 40 #include "stm32f4xx_ll_lptim.h"
NYX 0:85b3fd62ea1a 41 #include "stm32f4xx_ll_bus.h"
NYX 0:85b3fd62ea1a 42
NYX 0:85b3fd62ea1a 43 #ifdef USE_FULL_ASSERT
NYX 0:85b3fd62ea1a 44 #include "stm32_assert.h"
NYX 0:85b3fd62ea1a 45 #else
NYX 0:85b3fd62ea1a 46 #define assert_param(expr) ((void)0U)
NYX 0:85b3fd62ea1a 47 #endif
NYX 0:85b3fd62ea1a 48
NYX 0:85b3fd62ea1a 49 /** @addtogroup STM32F4xx_LL_Driver
NYX 0:85b3fd62ea1a 50 * @{
NYX 0:85b3fd62ea1a 51 */
NYX 0:85b3fd62ea1a 52
NYX 0:85b3fd62ea1a 53 #if defined (LPTIM1) || defined (LPTIM2)
NYX 0:85b3fd62ea1a 54
NYX 0:85b3fd62ea1a 55 /** @addtogroup LPTIM_LL
NYX 0:85b3fd62ea1a 56 * @{
NYX 0:85b3fd62ea1a 57 */
NYX 0:85b3fd62ea1a 58
NYX 0:85b3fd62ea1a 59 /* Private types -------------------------------------------------------------*/
NYX 0:85b3fd62ea1a 60 /* Private variables ---------------------------------------------------------*/
NYX 0:85b3fd62ea1a 61 /* Private constants ---------------------------------------------------------*/
NYX 0:85b3fd62ea1a 62 /* Private macros ------------------------------------------------------------*/
NYX 0:85b3fd62ea1a 63 /** @addtogroup LPTIM_LL_Private_Macros
NYX 0:85b3fd62ea1a 64 * @{
NYX 0:85b3fd62ea1a 65 */
NYX 0:85b3fd62ea1a 66 #define IS_LPTIM_CLOCK_SOURCE(__VALUE__) (((__VALUE__) == LL_LPTIM_CLK_SOURCE_INTERNAL) \
NYX 0:85b3fd62ea1a 67 || ((__VALUE__) == LL_LPTIM_CLK_SOURCE_EXTERNAL))
NYX 0:85b3fd62ea1a 68
NYX 0:85b3fd62ea1a 69 #define IS_LPTIM_CLOCK_PRESCALER(__VALUE__) (((__VALUE__) == LL_LPTIM_PRESCALER_DIV1) \
NYX 0:85b3fd62ea1a 70 || ((__VALUE__) == LL_LPTIM_PRESCALER_DIV2) \
NYX 0:85b3fd62ea1a 71 || ((__VALUE__) == LL_LPTIM_PRESCALER_DIV4) \
NYX 0:85b3fd62ea1a 72 || ((__VALUE__) == LL_LPTIM_PRESCALER_DIV8) \
NYX 0:85b3fd62ea1a 73 || ((__VALUE__) == LL_LPTIM_PRESCALER_DIV16) \
NYX 0:85b3fd62ea1a 74 || ((__VALUE__) == LL_LPTIM_PRESCALER_DIV32) \
NYX 0:85b3fd62ea1a 75 || ((__VALUE__) == LL_LPTIM_PRESCALER_DIV64) \
NYX 0:85b3fd62ea1a 76 || ((__VALUE__) == LL_LPTIM_PRESCALER_DIV128))
NYX 0:85b3fd62ea1a 77
NYX 0:85b3fd62ea1a 78 #define IS_LPTIM_WAVEFORM(__VALUE__) (((__VALUE__) == LL_LPTIM_OUTPUT_WAVEFORM_PWM) \
NYX 0:85b3fd62ea1a 79 || ((__VALUE__) == LL_LPTIM_OUTPUT_WAVEFORM_SETONCE))
NYX 0:85b3fd62ea1a 80
NYX 0:85b3fd62ea1a 81 #define IS_LPTIM_OUTPUT_POLARITY(__VALUE__) (((__VALUE__) == LL_LPTIM_OUTPUT_POLARITY_REGULAR) \
NYX 0:85b3fd62ea1a 82 || ((__VALUE__) == LL_LPTIM_OUTPUT_POLARITY_INVERSE))
NYX 0:85b3fd62ea1a 83 /**
NYX 0:85b3fd62ea1a 84 * @}
NYX 0:85b3fd62ea1a 85 */
NYX 0:85b3fd62ea1a 86
NYX 0:85b3fd62ea1a 87
NYX 0:85b3fd62ea1a 88 /* Private function prototypes -----------------------------------------------*/
NYX 0:85b3fd62ea1a 89 /* Exported functions --------------------------------------------------------*/
NYX 0:85b3fd62ea1a 90 /** @addtogroup LPTIM_LL_Exported_Functions
NYX 0:85b3fd62ea1a 91 * @{
NYX 0:85b3fd62ea1a 92 */
NYX 0:85b3fd62ea1a 93
NYX 0:85b3fd62ea1a 94 /** @addtogroup LPTIM_LL_EF_Init
NYX 0:85b3fd62ea1a 95 * @{
NYX 0:85b3fd62ea1a 96 */
NYX 0:85b3fd62ea1a 97
NYX 0:85b3fd62ea1a 98 /**
NYX 0:85b3fd62ea1a 99 * @brief Set LPTIMx registers to their reset values.
NYX 0:85b3fd62ea1a 100 * @param LPTIMx LP Timer instance
NYX 0:85b3fd62ea1a 101 * @retval An ErrorStatus enumeration value:
NYX 0:85b3fd62ea1a 102 * - SUCCESS: LPTIMx registers are de-initialized
NYX 0:85b3fd62ea1a 103 * - ERROR: invalid LPTIMx instance
NYX 0:85b3fd62ea1a 104 */
NYX 0:85b3fd62ea1a 105 ErrorStatus LL_LPTIM_DeInit(LPTIM_TypeDef* LPTIMx)
NYX 0:85b3fd62ea1a 106 {
NYX 0:85b3fd62ea1a 107 ErrorStatus result = SUCCESS;
NYX 0:85b3fd62ea1a 108
NYX 0:85b3fd62ea1a 109 /* Check the parameters */
NYX 0:85b3fd62ea1a 110 assert_param(IS_LPTIM_INSTANCE(LPTIMx));
NYX 0:85b3fd62ea1a 111
NYX 0:85b3fd62ea1a 112 if (LPTIMx == LPTIM1)
NYX 0:85b3fd62ea1a 113 {
NYX 0:85b3fd62ea1a 114 LL_APB1_GRP1_ForceReset(LL_APB1_GRP1_PERIPH_LPTIM1);
NYX 0:85b3fd62ea1a 115 LL_APB1_GRP1_ReleaseReset(LL_APB1_GRP1_PERIPH_LPTIM1);
NYX 0:85b3fd62ea1a 116 }
NYX 0:85b3fd62ea1a 117 #if defined(LPTIM2)
NYX 0:85b3fd62ea1a 118 else if (LPTIMx == LPTIM2)
NYX 0:85b3fd62ea1a 119 {
NYX 0:85b3fd62ea1a 120 LL_APB1_GRP2_ForceReset(LL_APB1_GRP2_PERIPH_LPTIM2);
NYX 0:85b3fd62ea1a 121 LL_APB1_GRP2_ReleaseReset(LL_APB1_GRP2_PERIPH_LPTIM2);
NYX 0:85b3fd62ea1a 122 }
NYX 0:85b3fd62ea1a 123 #endif
NYX 0:85b3fd62ea1a 124 else
NYX 0:85b3fd62ea1a 125 {
NYX 0:85b3fd62ea1a 126 result = ERROR;
NYX 0:85b3fd62ea1a 127 }
NYX 0:85b3fd62ea1a 128
NYX 0:85b3fd62ea1a 129 return result;
NYX 0:85b3fd62ea1a 130 }
NYX 0:85b3fd62ea1a 131
NYX 0:85b3fd62ea1a 132 /**
NYX 0:85b3fd62ea1a 133 * @brief Set each fields of the LPTIM_InitStruct structure to its default
NYX 0:85b3fd62ea1a 134 * value.
NYX 0:85b3fd62ea1a 135 * @param LPTIM_InitStruct pointer to a @ref LL_LPTIM_InitTypeDef structure
NYX 0:85b3fd62ea1a 136 * @retval None
NYX 0:85b3fd62ea1a 137 */
NYX 0:85b3fd62ea1a 138 void LL_LPTIM_StructInit(LL_LPTIM_InitTypeDef* LPTIM_InitStruct)
NYX 0:85b3fd62ea1a 139 {
NYX 0:85b3fd62ea1a 140 /* Set the default configuration */
NYX 0:85b3fd62ea1a 141 LPTIM_InitStruct->ClockSource = LL_LPTIM_CLK_SOURCE_INTERNAL;
NYX 0:85b3fd62ea1a 142 LPTIM_InitStruct->Prescaler = LL_LPTIM_PRESCALER_DIV1;
NYX 0:85b3fd62ea1a 143 LPTIM_InitStruct->Waveform = LL_LPTIM_OUTPUT_WAVEFORM_PWM;
NYX 0:85b3fd62ea1a 144 LPTIM_InitStruct->Polarity = LL_LPTIM_OUTPUT_POLARITY_REGULAR;
NYX 0:85b3fd62ea1a 145 }
NYX 0:85b3fd62ea1a 146
NYX 0:85b3fd62ea1a 147 /**
NYX 0:85b3fd62ea1a 148 * @brief Configure the LPTIMx peripheral according to the specified parameters.
NYX 0:85b3fd62ea1a 149 * @note LL_LPTIM_Init can only be called when the LPTIM instance is disabled.
NYX 0:85b3fd62ea1a 150 * @note LPTIMx can be disabled using unitary function @ref LL_LPTIM_Disable().
NYX 0:85b3fd62ea1a 151 * @param LPTIMx LP Timer Instance
NYX 0:85b3fd62ea1a 152 * @param LPTIM_InitStruct pointer to a @ref LL_LPTIM_InitTypeDef structure
NYX 0:85b3fd62ea1a 153 * @retval An ErrorStatus enumeration value:
NYX 0:85b3fd62ea1a 154 * - SUCCESS: LPTIMx instance has been initialized
NYX 0:85b3fd62ea1a 155 * - ERROR: LPTIMx instance hasn't been initialized
NYX 0:85b3fd62ea1a 156 */
NYX 0:85b3fd62ea1a 157 ErrorStatus LL_LPTIM_Init(LPTIM_TypeDef * LPTIMx, LL_LPTIM_InitTypeDef* LPTIM_InitStruct)
NYX 0:85b3fd62ea1a 158 {
NYX 0:85b3fd62ea1a 159 ErrorStatus result = SUCCESS;
NYX 0:85b3fd62ea1a 160
NYX 0:85b3fd62ea1a 161 /* The LPTIMx_CFGR register must only be modified when the LPTIM is disabled
NYX 0:85b3fd62ea1a 162 (ENABLE bit is reset to 0).
NYX 0:85b3fd62ea1a 163 */
NYX 0:85b3fd62ea1a 164 if (LL_LPTIM_IsEnabled(LPTIMx))
NYX 0:85b3fd62ea1a 165 {
NYX 0:85b3fd62ea1a 166 result = ERROR;
NYX 0:85b3fd62ea1a 167 }
NYX 0:85b3fd62ea1a 168 else
NYX 0:85b3fd62ea1a 169 {
NYX 0:85b3fd62ea1a 170 /* Check the parameters */
NYX 0:85b3fd62ea1a 171 assert_param(IS_LPTIM_INSTANCE(LPTIMx));
NYX 0:85b3fd62ea1a 172 assert_param(IS_LPTIM_CLOCK_SOURCE(LPTIM_InitStruct->ClockSource));
NYX 0:85b3fd62ea1a 173 assert_param(IS_LPTIM_CLOCK_PRESCALER(LPTIM_InitStruct->Prescaler));
NYX 0:85b3fd62ea1a 174 assert_param(IS_LPTIM_WAVEFORM(LPTIM_InitStruct->Waveform));
NYX 0:85b3fd62ea1a 175 assert_param(IS_LPTIM_OUTPUT_POLARITY(LPTIM_InitStruct->Polarity));
NYX 0:85b3fd62ea1a 176
NYX 0:85b3fd62ea1a 177 /* Set CKSEL bitfield according to ClockSource value */
NYX 0:85b3fd62ea1a 178 /* Set PRESC bitfield according to Prescaler value */
NYX 0:85b3fd62ea1a 179 /* Set WAVE bitfield according to Waveform value */
NYX 0:85b3fd62ea1a 180 /* Set WAVEPOL bitfield according to Polarity value */
NYX 0:85b3fd62ea1a 181 MODIFY_REG(LPTIMx->CFGR,
NYX 0:85b3fd62ea1a 182 (LPTIM_CFGR_CKSEL | LPTIM_CFGR_PRESC | LPTIM_CFGR_WAVE| LPTIM_CFGR_WAVPOL),
NYX 0:85b3fd62ea1a 183 LPTIM_InitStruct->ClockSource | \
NYX 0:85b3fd62ea1a 184 LPTIM_InitStruct->Prescaler | \
NYX 0:85b3fd62ea1a 185 LPTIM_InitStruct->Waveform | \
NYX 0:85b3fd62ea1a 186 LPTIM_InitStruct->Polarity);
NYX 0:85b3fd62ea1a 187 }
NYX 0:85b3fd62ea1a 188
NYX 0:85b3fd62ea1a 189 return result;
NYX 0:85b3fd62ea1a 190 }
NYX 0:85b3fd62ea1a 191
NYX 0:85b3fd62ea1a 192 /**
NYX 0:85b3fd62ea1a 193 * @}
NYX 0:85b3fd62ea1a 194 */
NYX 0:85b3fd62ea1a 195
NYX 0:85b3fd62ea1a 196 /**
NYX 0:85b3fd62ea1a 197 * @}
NYX 0:85b3fd62ea1a 198 */
NYX 0:85b3fd62ea1a 199
NYX 0:85b3fd62ea1a 200 /**
NYX 0:85b3fd62ea1a 201 * @}
NYX 0:85b3fd62ea1a 202 */
NYX 0:85b3fd62ea1a 203
NYX 0:85b3fd62ea1a 204 #endif /* defined (LPTIM1) || defined (LPTIM2) */
NYX 0:85b3fd62ea1a 205
NYX 0:85b3fd62ea1a 206 /**
NYX 0:85b3fd62ea1a 207 * @}
NYX 0:85b3fd62ea1a 208 */
NYX 0:85b3fd62ea1a 209
NYX 0:85b3fd62ea1a 210 #endif /* USE_FULL_LL_DRIVER */
NYX 0:85b3fd62ea1a 211
NYX 0:85b3fd62ea1a 212 /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/