Gan likun / mbed1-dev

001

targets/TARGET_STM/TARGET_STM32F4/device/stm32f4xx_ll_dac.c@0:13413ea9a877, 2022-06-12 (annotated)

Committer:
ganlikun
Date:
Sun Jun 12 14:02:44 2022 +0000
Revision:
0:13413ea9a877
00

Who changed what in which revision?

UserRevisionLine numberNew contents of line
ganlikun 0:13413ea9a877 1 /**
ganlikun 0:13413ea9a877 2 ******************************************************************************
ganlikun 0:13413ea9a877 3 * @file stm32f4xx_ll_dac.c
ganlikun 0:13413ea9a877 4 * @author MCD Application Team
ganlikun 0:13413ea9a877 5 * @version V1.7.1
ganlikun 0:13413ea9a877 6 * @date 14-April-2017
ganlikun 0:13413ea9a877 7 * @brief DAC LL module driver
ganlikun 0:13413ea9a877 8 ******************************************************************************
ganlikun 0:13413ea9a877 9 * @attention
ganlikun 0:13413ea9a877 10 *
ganlikun 0:13413ea9a877 11 * <h2><center>&copy; COPYRIGHT(c) 2017 STMicroelectronics</center></h2>
ganlikun 0:13413ea9a877 12 *
ganlikun 0:13413ea9a877 13 * Redistribution and use in source and binary forms, with or without modification,
ganlikun 0:13413ea9a877 14 * are permitted provided that the following conditions are met:
ganlikun 0:13413ea9a877 15 * 1. Redistributions of source code must retain the above copyright notice,
ganlikun 0:13413ea9a877 16 * this list of conditions and the following disclaimer.
ganlikun 0:13413ea9a877 17 * 2. Redistributions in binary form must reproduce the above copyright notice,
ganlikun 0:13413ea9a877 18 * this list of conditions and the following disclaimer in the documentation
ganlikun 0:13413ea9a877 19 * and/or other materials provided with the distribution.
ganlikun 0:13413ea9a877 20 * 3. Neither the name of STMicroelectronics nor the names of its contributors
ganlikun 0:13413ea9a877 21 * may be used to endorse or promote products derived from this software
ganlikun 0:13413ea9a877 22 * without specific prior written permission.
ganlikun 0:13413ea9a877 23 *
ganlikun 0:13413ea9a877 24 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
ganlikun 0:13413ea9a877 25 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
ganlikun 0:13413ea9a877 26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
ganlikun 0:13413ea9a877 27 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
ganlikun 0:13413ea9a877 28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
ganlikun 0:13413ea9a877 29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
ganlikun 0:13413ea9a877 30 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
ganlikun 0:13413ea9a877 31 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
ganlikun 0:13413ea9a877 32 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
ganlikun 0:13413ea9a877 33 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
ganlikun 0:13413ea9a877 34 *
ganlikun 0:13413ea9a877 35 ******************************************************************************
ganlikun 0:13413ea9a877 36 */
ganlikun 0:13413ea9a877 37 #if defined(USE_FULL_LL_DRIVER)
ganlikun 0:13413ea9a877 38
ganlikun 0:13413ea9a877 39 /* Includes ------------------------------------------------------------------*/
ganlikun 0:13413ea9a877 40 #include "stm32f4xx_ll_dac.h"
ganlikun 0:13413ea9a877 41 #include "stm32f4xx_ll_bus.h"
ganlikun 0:13413ea9a877 42
ganlikun 0:13413ea9a877 43 #ifdef USE_FULL_ASSERT
ganlikun 0:13413ea9a877 44 #include "stm32_assert.h"
ganlikun 0:13413ea9a877 45 #else
ganlikun 0:13413ea9a877 46 #define assert_param(expr) ((void)0U)
ganlikun 0:13413ea9a877 47 #endif
ganlikun 0:13413ea9a877 48
ganlikun 0:13413ea9a877 49 /** @addtogroup STM32F4xx_LL_Driver
ganlikun 0:13413ea9a877 50 * @{
ganlikun 0:13413ea9a877 51 */
ganlikun 0:13413ea9a877 52
ganlikun 0:13413ea9a877 53 #if defined(DAC)
ganlikun 0:13413ea9a877 54
ganlikun 0:13413ea9a877 55 /** @addtogroup DAC_LL DAC
ganlikun 0:13413ea9a877 56 * @{
ganlikun 0:13413ea9a877 57 */
ganlikun 0:13413ea9a877 58
ganlikun 0:13413ea9a877 59 /* Private types -------------------------------------------------------------*/
ganlikun 0:13413ea9a877 60 /* Private variables ---------------------------------------------------------*/
ganlikun 0:13413ea9a877 61 /* Private constants ---------------------------------------------------------*/
ganlikun 0:13413ea9a877 62 /* Private macros ------------------------------------------------------------*/
ganlikun 0:13413ea9a877 63
ganlikun 0:13413ea9a877 64 /** @addtogroup DAC_LL_Private_Macros
ganlikun 0:13413ea9a877 65 * @{
ganlikun 0:13413ea9a877 66 */
ganlikun 0:13413ea9a877 67
ganlikun 0:13413ea9a877 68 #if defined(DAC_CHANNEL2_SUPPORT)
ganlikun 0:13413ea9a877 69 #define IS_LL_DAC_CHANNEL(__DACX__, __DAC_CHANNEL__) \
ganlikun 0:13413ea9a877 70 ( \
ganlikun 0:13413ea9a877 71 ((__DAC_CHANNEL__) == LL_DAC_CHANNEL_1) \
ganlikun 0:13413ea9a877 72 || ((__DAC_CHANNEL__) == LL_DAC_CHANNEL_2) \
ganlikun 0:13413ea9a877 73 )
ganlikun 0:13413ea9a877 74 #else
ganlikun 0:13413ea9a877 75 #define IS_LL_DAC_CHANNEL(__DACX__, __DAC_CHANNEL__) \
ganlikun 0:13413ea9a877 76 ( \
ganlikun 0:13413ea9a877 77 ((__DAC_CHANNEL__) == LL_DAC_CHANNEL_1) \
ganlikun 0:13413ea9a877 78 )
ganlikun 0:13413ea9a877 79 #endif /* DAC_CHANNEL2_SUPPORT */
ganlikun 0:13413ea9a877 80
ganlikun 0:13413ea9a877 81 #define IS_LL_DAC_TRIGGER_SOURCE(__TRIGGER_SOURCE__) \
ganlikun 0:13413ea9a877 82 ( ((__TRIGGER_SOURCE__) == LL_DAC_TRIG_SOFTWARE) \
ganlikun 0:13413ea9a877 83 || ((__TRIGGER_SOURCE__) == LL_DAC_TRIG_EXT_TIM2_TRGO) \
ganlikun 0:13413ea9a877 84 || ((__TRIGGER_SOURCE__) == LL_DAC_TRIG_EXT_TIM4_TRGO) \
ganlikun 0:13413ea9a877 85 || ((__TRIGGER_SOURCE__) == LL_DAC_TRIG_EXT_TIM5_TRGO) \
ganlikun 0:13413ea9a877 86 || ((__TRIGGER_SOURCE__) == LL_DAC_TRIG_EXT_TIM6_TRGO) \
ganlikun 0:13413ea9a877 87 || ((__TRIGGER_SOURCE__) == LL_DAC_TRIG_EXT_TIM7_TRGO) \
ganlikun 0:13413ea9a877 88 || ((__TRIGGER_SOURCE__) == LL_DAC_TRIG_EXT_TIM8_TRGO) \
ganlikun 0:13413ea9a877 89 || ((__TRIGGER_SOURCE__) == LL_DAC_TRIG_EXT_EXTI_LINE9) \
ganlikun 0:13413ea9a877 90 )
ganlikun 0:13413ea9a877 91
ganlikun 0:13413ea9a877 92 #define IS_LL_DAC_WAVE_AUTO_GENER_MODE(__WAVE_AUTO_GENERATION_MODE__) \
ganlikun 0:13413ea9a877 93 ( ((__WAVE_AUTO_GENERATION_MODE__) == LL_DAC_WAVE_AUTO_GENERATION_NONE) \
ganlikun 0:13413ea9a877 94 || ((__WAVE_AUTO_GENERATION_MODE__) == LL_DAC_WAVE_AUTO_GENERATION_NOISE) \
ganlikun 0:13413ea9a877 95 || ((__WAVE_AUTO_GENERATION_MODE__) == LL_DAC_WAVE_AUTO_GENERATION_TRIANGLE) \
ganlikun 0:13413ea9a877 96 )
ganlikun 0:13413ea9a877 97
ganlikun 0:13413ea9a877 98 #define IS_LL_DAC_WAVE_AUTO_GENER_CONFIG(__WAVE_AUTO_GENERATION_CONFIG__) \
ganlikun 0:13413ea9a877 99 ( ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_NOISE_LFSR_UNMASK_BIT0) \
ganlikun 0:13413ea9a877 100 || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_NOISE_LFSR_UNMASK_BITS1_0) \
ganlikun 0:13413ea9a877 101 || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_NOISE_LFSR_UNMASK_BITS2_0) \
ganlikun 0:13413ea9a877 102 || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_NOISE_LFSR_UNMASK_BITS3_0) \
ganlikun 0:13413ea9a877 103 || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_NOISE_LFSR_UNMASK_BITS4_0) \
ganlikun 0:13413ea9a877 104 || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_NOISE_LFSR_UNMASK_BITS5_0) \
ganlikun 0:13413ea9a877 105 || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_NOISE_LFSR_UNMASK_BITS6_0) \
ganlikun 0:13413ea9a877 106 || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_NOISE_LFSR_UNMASK_BITS7_0) \
ganlikun 0:13413ea9a877 107 || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_NOISE_LFSR_UNMASK_BITS8_0) \
ganlikun 0:13413ea9a877 108 || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_NOISE_LFSR_UNMASK_BITS9_0) \
ganlikun 0:13413ea9a877 109 || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_NOISE_LFSR_UNMASK_BITS10_0) \
ganlikun 0:13413ea9a877 110 || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_NOISE_LFSR_UNMASK_BITS11_0) \
ganlikun 0:13413ea9a877 111 || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_TRIANGLE_AMPLITUDE_1) \
ganlikun 0:13413ea9a877 112 || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_TRIANGLE_AMPLITUDE_3) \
ganlikun 0:13413ea9a877 113 || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_TRIANGLE_AMPLITUDE_7) \
ganlikun 0:13413ea9a877 114 || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_TRIANGLE_AMPLITUDE_15) \
ganlikun 0:13413ea9a877 115 || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_TRIANGLE_AMPLITUDE_31) \
ganlikun 0:13413ea9a877 116 || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_TRIANGLE_AMPLITUDE_63) \
ganlikun 0:13413ea9a877 117 || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_TRIANGLE_AMPLITUDE_127) \
ganlikun 0:13413ea9a877 118 || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_TRIANGLE_AMPLITUDE_255) \
ganlikun 0:13413ea9a877 119 || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_TRIANGLE_AMPLITUDE_511) \
ganlikun 0:13413ea9a877 120 || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_TRIANGLE_AMPLITUDE_1023) \
ganlikun 0:13413ea9a877 121 || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_TRIANGLE_AMPLITUDE_2047) \
ganlikun 0:13413ea9a877 122 || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_TRIANGLE_AMPLITUDE_4095) \
ganlikun 0:13413ea9a877 123 )
ganlikun 0:13413ea9a877 124
ganlikun 0:13413ea9a877 125 #define IS_LL_DAC_OUTPUT_BUFFER(__OUTPUT_BUFFER__) \
ganlikun 0:13413ea9a877 126 ( ((__OUTPUT_BUFFER__) == LL_DAC_OUTPUT_BUFFER_ENABLE) \
ganlikun 0:13413ea9a877 127 || ((__OUTPUT_BUFFER__) == LL_DAC_OUTPUT_BUFFER_DISABLE) \
ganlikun 0:13413ea9a877 128 )
ganlikun 0:13413ea9a877 129
ganlikun 0:13413ea9a877 130 /**
ganlikun 0:13413ea9a877 131 * @}
ganlikun 0:13413ea9a877 132 */
ganlikun 0:13413ea9a877 133
ganlikun 0:13413ea9a877 134
ganlikun 0:13413ea9a877 135 /* Private function prototypes -----------------------------------------------*/
ganlikun 0:13413ea9a877 136
ganlikun 0:13413ea9a877 137 /* Exported functions --------------------------------------------------------*/
ganlikun 0:13413ea9a877 138 /** @addtogroup DAC_LL_Exported_Functions
ganlikun 0:13413ea9a877 139 * @{
ganlikun 0:13413ea9a877 140 */
ganlikun 0:13413ea9a877 141
ganlikun 0:13413ea9a877 142 /** @addtogroup DAC_LL_EF_Init
ganlikun 0:13413ea9a877 143 * @{
ganlikun 0:13413ea9a877 144 */
ganlikun 0:13413ea9a877 145
ganlikun 0:13413ea9a877 146 /**
ganlikun 0:13413ea9a877 147 * @brief De-initialize registers of the selected DAC instance
ganlikun 0:13413ea9a877 148 * to their default reset values.
ganlikun 0:13413ea9a877 149 * @param DACx DAC instance
ganlikun 0:13413ea9a877 150 * @retval An ErrorStatus enumeration value:
ganlikun 0:13413ea9a877 151 * - SUCCESS: DAC registers are de-initialized
ganlikun 0:13413ea9a877 152 * - ERROR: not applicable
ganlikun 0:13413ea9a877 153 */
ganlikun 0:13413ea9a877 154 ErrorStatus LL_DAC_DeInit(DAC_TypeDef *DACx)
ganlikun 0:13413ea9a877 155 {
ganlikun 0:13413ea9a877 156 /* Check the parameters */
ganlikun 0:13413ea9a877 157 assert_param(IS_DAC_ALL_INSTANCE(DACx));
ganlikun 0:13413ea9a877 158
ganlikun 0:13413ea9a877 159 /* Force reset of DAC1 clock */
ganlikun 0:13413ea9a877 160 LL_APB1_GRP1_ForceReset(LL_APB1_GRP1_PERIPH_DAC1);
ganlikun 0:13413ea9a877 161
ganlikun 0:13413ea9a877 162 /* Release reset of DAC1 clock */
ganlikun 0:13413ea9a877 163 LL_APB1_GRP1_ReleaseReset(LL_APB1_GRP1_PERIPH_DAC1);
ganlikun 0:13413ea9a877 164 return SUCCESS;
ganlikun 0:13413ea9a877 165 }
ganlikun 0:13413ea9a877 166
ganlikun 0:13413ea9a877 167 /**
ganlikun 0:13413ea9a877 168 * @brief Initialize some features of DAC instance.
ganlikun 0:13413ea9a877 169 * @note The setting of these parameters by function @ref LL_DAC_Init()
ganlikun 0:13413ea9a877 170 * is conditioned to DAC state:
ganlikun 0:13413ea9a877 171 * DAC instance must be disabled.
ganlikun 0:13413ea9a877 172 * @param DACx DAC instance
ganlikun 0:13413ea9a877 173 * @param DAC_Channel This parameter can be one of the following values:
ganlikun 0:13413ea9a877 174 * @arg @ref LL_DAC_CHANNEL_1
ganlikun 0:13413ea9a877 175 * @arg @ref LL_DAC_CHANNEL_2 (1)
ganlikun 0:13413ea9a877 176 *
ganlikun 0:13413ea9a877 177 * (1) On this STM32 serie, parameter not available on all devices.
ganlikun 0:13413ea9a877 178 * Refer to device datasheet for channels availability.
ganlikun 0:13413ea9a877 179 * @param DAC_InitStruct Pointer to a @ref LL_DAC_InitTypeDef structure
ganlikun 0:13413ea9a877 180 * @retval An ErrorStatus enumeration value:
ganlikun 0:13413ea9a877 181 * - SUCCESS: DAC registers are initialized
ganlikun 0:13413ea9a877 182 * - ERROR: DAC registers are not initialized
ganlikun 0:13413ea9a877 183 */
ganlikun 0:13413ea9a877 184 ErrorStatus LL_DAC_Init(DAC_TypeDef *DACx, uint32_t DAC_Channel, LL_DAC_InitTypeDef *DAC_InitStruct)
ganlikun 0:13413ea9a877 185 {
ganlikun 0:13413ea9a877 186 ErrorStatus status = SUCCESS;
ganlikun 0:13413ea9a877 187
ganlikun 0:13413ea9a877 188 /* Check the parameters */
ganlikun 0:13413ea9a877 189 assert_param(IS_DAC_ALL_INSTANCE(DACx));
ganlikun 0:13413ea9a877 190 assert_param(IS_LL_DAC_CHANNEL(DACx, DAC_Channel));
ganlikun 0:13413ea9a877 191 assert_param(IS_LL_DAC_TRIGGER_SOURCE(DAC_InitStruct->TriggerSource));
ganlikun 0:13413ea9a877 192 assert_param(IS_LL_DAC_OUTPUT_BUFFER(DAC_InitStruct->OutputBuffer));
ganlikun 0:13413ea9a877 193 assert_param(IS_LL_DAC_WAVE_AUTO_GENER_MODE(DAC_InitStruct->WaveAutoGeneration));
ganlikun 0:13413ea9a877 194 if (DAC_InitStruct->WaveAutoGeneration != LL_DAC_WAVE_AUTO_GENERATION_NONE)
ganlikun 0:13413ea9a877 195 {
ganlikun 0:13413ea9a877 196 assert_param(IS_LL_DAC_WAVE_AUTO_GENER_CONFIG(DAC_InitStruct->WaveAutoGenerationConfig));
ganlikun 0:13413ea9a877 197 }
ganlikun 0:13413ea9a877 198
ganlikun 0:13413ea9a877 199 /* Note: Hardware constraint (refer to description of this function) */
ganlikun 0:13413ea9a877 200 /* DAC instance must be disabled. */
ganlikun 0:13413ea9a877 201 if(LL_DAC_IsEnabled(DACx, DAC_Channel) == 0U)
ganlikun 0:13413ea9a877 202 {
ganlikun 0:13413ea9a877 203 /* Configuration of DAC channel: */
ganlikun 0:13413ea9a877 204 /* - TriggerSource */
ganlikun 0:13413ea9a877 205 /* - WaveAutoGeneration */
ganlikun 0:13413ea9a877 206 /* - OutputBuffer */
ganlikun 0:13413ea9a877 207 if (DAC_InitStruct->WaveAutoGeneration != LL_DAC_WAVE_AUTO_GENERATION_NONE)
ganlikun 0:13413ea9a877 208 {
ganlikun 0:13413ea9a877 209 MODIFY_REG(DACx->CR,
ganlikun 0:13413ea9a877 210 ( DAC_CR_TSEL1
ganlikun 0:13413ea9a877 211 | DAC_CR_WAVE1
ganlikun 0:13413ea9a877 212 | DAC_CR_MAMP1
ganlikun 0:13413ea9a877 213 | DAC_CR_BOFF1
ganlikun 0:13413ea9a877 214 ) << (DAC_Channel & DAC_CR_CHX_BITOFFSET_MASK)
ganlikun 0:13413ea9a877 215 ,
ganlikun 0:13413ea9a877 216 ( DAC_InitStruct->TriggerSource
ganlikun 0:13413ea9a877 217 | DAC_InitStruct->WaveAutoGeneration
ganlikun 0:13413ea9a877 218 | DAC_InitStruct->WaveAutoGenerationConfig
ganlikun 0:13413ea9a877 219 | DAC_InitStruct->OutputBuffer
ganlikun 0:13413ea9a877 220 ) << (DAC_Channel & DAC_CR_CHX_BITOFFSET_MASK)
ganlikun 0:13413ea9a877 221 );
ganlikun 0:13413ea9a877 222 }
ganlikun 0:13413ea9a877 223 else
ganlikun 0:13413ea9a877 224 {
ganlikun 0:13413ea9a877 225 MODIFY_REG(DACx->CR,
ganlikun 0:13413ea9a877 226 ( DAC_CR_TSEL1
ganlikun 0:13413ea9a877 227 | DAC_CR_WAVE1
ganlikun 0:13413ea9a877 228 | DAC_CR_BOFF1
ganlikun 0:13413ea9a877 229 ) << (DAC_Channel & DAC_CR_CHX_BITOFFSET_MASK)
ganlikun 0:13413ea9a877 230 ,
ganlikun 0:13413ea9a877 231 ( DAC_InitStruct->TriggerSource
ganlikun 0:13413ea9a877 232 | LL_DAC_WAVE_AUTO_GENERATION_NONE
ganlikun 0:13413ea9a877 233 | DAC_InitStruct->OutputBuffer
ganlikun 0:13413ea9a877 234 ) << (DAC_Channel & DAC_CR_CHX_BITOFFSET_MASK)
ganlikun 0:13413ea9a877 235 );
ganlikun 0:13413ea9a877 236 }
ganlikun 0:13413ea9a877 237 }
ganlikun 0:13413ea9a877 238 else
ganlikun 0:13413ea9a877 239 {
ganlikun 0:13413ea9a877 240 /* Initialization error: DAC instance is not disabled. */
ganlikun 0:13413ea9a877 241 status = ERROR;
ganlikun 0:13413ea9a877 242 }
ganlikun 0:13413ea9a877 243 return status;
ganlikun 0:13413ea9a877 244 }
ganlikun 0:13413ea9a877 245
ganlikun 0:13413ea9a877 246 /**
ganlikun 0:13413ea9a877 247 * @brief Set each @ref LL_DAC_InitTypeDef field to default value.
ganlikun 0:13413ea9a877 248 * @param DAC_InitStruct pointer to a @ref LL_DAC_InitTypeDef structure
ganlikun 0:13413ea9a877 249 * whose fields will be set to default values.
ganlikun 0:13413ea9a877 250 * @retval None
ganlikun 0:13413ea9a877 251 */
ganlikun 0:13413ea9a877 252 void LL_DAC_StructInit(LL_DAC_InitTypeDef *DAC_InitStruct)
ganlikun 0:13413ea9a877 253 {
ganlikun 0:13413ea9a877 254 /* Set DAC_InitStruct fields to default values */
ganlikun 0:13413ea9a877 255 DAC_InitStruct->TriggerSource = LL_DAC_TRIG_SOFTWARE;
ganlikun 0:13413ea9a877 256 DAC_InitStruct->WaveAutoGeneration = LL_DAC_WAVE_AUTO_GENERATION_NONE;
ganlikun 0:13413ea9a877 257 /* Note: Parameter discarded if wave auto generation is disabled, */
ganlikun 0:13413ea9a877 258 /* set anyway to its default value. */
ganlikun 0:13413ea9a877 259 DAC_InitStruct->WaveAutoGenerationConfig = LL_DAC_NOISE_LFSR_UNMASK_BIT0;
ganlikun 0:13413ea9a877 260 DAC_InitStruct->OutputBuffer = LL_DAC_OUTPUT_BUFFER_ENABLE;
ganlikun 0:13413ea9a877 261 }
ganlikun 0:13413ea9a877 262
ganlikun 0:13413ea9a877 263 /**
ganlikun 0:13413ea9a877 264 * @}
ganlikun 0:13413ea9a877 265 */
ganlikun 0:13413ea9a877 266
ganlikun 0:13413ea9a877 267 /**
ganlikun 0:13413ea9a877 268 * @}
ganlikun 0:13413ea9a877 269 */
ganlikun 0:13413ea9a877 270
ganlikun 0:13413ea9a877 271 /**
ganlikun 0:13413ea9a877 272 * @}
ganlikun 0:13413ea9a877 273 */
ganlikun 0:13413ea9a877 274
ganlikun 0:13413ea9a877 275 #endif /* DAC */
ganlikun 0:13413ea9a877 276
ganlikun 0:13413ea9a877 277 /**
ganlikun 0:13413ea9a877 278 * @}
ganlikun 0:13413ea9a877 279 */
ganlikun 0:13413ea9a877 280
ganlikun 0:13413ea9a877 281 #endif /* USE_FULL_LL_DRIVER */
ganlikun 0:13413ea9a877 282
ganlikun 0:13413ea9a877 283 /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
ganlikun 0:13413ea9a877 284