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| bfc108 | 1 | /** |
| Q | 2 | ****************************************************************************** |
| 3 | * @file stm32f0xx_ll_dac.c | |
| 4 | * @author MCD Application Team | |
| 5 | * @brief DAC LL module driver | |
| 6 | ****************************************************************************** | |
| 7 | * @attention | |
| 8 | * | |
| 9 | * <h2><center>© COPYRIGHT(c) 2016 STMicroelectronics</center></h2> | |
| 10 | * | |
| 11 | * Redistribution and use in source and binary forms, with or without modification, | |
| 12 | * are permitted provided that the following conditions are met: | |
| 13 | * 1. Redistributions of source code must retain the above copyright notice, | |
| 14 | * this list of conditions and the following disclaimer. | |
| 15 | * 2. Redistributions in binary form must reproduce the above copyright notice, | |
| 16 | * this list of conditions and the following disclaimer in the documentation | |
| 17 | * and/or other materials provided with the distribution. | |
| 18 | * 3. Neither the name of STMicroelectronics nor the names of its contributors | |
| 19 | * may be used to endorse or promote products derived from this software | |
| 20 | * without specific prior written permission. | |
| 21 | * | |
| 22 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" | |
| 23 | * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
| 24 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE | |
| 25 | * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE | |
| 26 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |
| 27 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR | |
| 28 | * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER | |
| 29 | * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, | |
| 30 | * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | |
| 31 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
| 32 | * | |
| 33 | ****************************************************************************** | |
| 34 | */ | |
| 35 | #if defined(USE_FULL_LL_DRIVER) | |
| 36 | ||
| 37 | /* Includes ------------------------------------------------------------------*/ | |
| 38 | #include "stm32f0xx_ll_dac.h" | |
| 39 | #include "stm32f0xx_ll_bus.h" | |
| 40 | ||
| 41 | #ifdef USE_FULL_ASSERT | |
| 42 | #include "stm32_assert.h" | |
| 43 | #else | |
| 44 | #define assert_param(expr) ((void)0U) | |
| 45 | #endif | |
| 46 | ||
| 47 | /** @addtogroup STM32F0xx_LL_Driver | |
| 48 | * @{ | |
| 49 | */ | |
| 50 | ||
| 51 | #if defined (DAC1) | |
| 52 | ||
| 53 | /** @addtogroup DAC_LL DAC | |
| 54 | * @{ | |
| 55 | */ | |
| 56 | ||
| 57 | /* Private types -------------------------------------------------------------*/ | |
| 58 | /* Private variables ---------------------------------------------------------*/ | |
| 59 | /* Private constants ---------------------------------------------------------*/ | |
| 60 | /* Private macros ------------------------------------------------------------*/ | |
| 61 | ||
| 62 | /** @addtogroup DAC_LL_Private_Macros | |
| 63 | * @{ | |
| 64 | */ | |
| 65 | ||
| 66 | #if defined(DAC_CHANNEL2_SUPPORT) | |
| 67 | #define IS_LL_DAC_CHANNEL(__DACX__, __DAC_CHANNEL__) \ | |
| 68 | ( \ | |
| 69 | ((__DAC_CHANNEL__) == LL_DAC_CHANNEL_1) \ | |
| 70 | || ((__DAC_CHANNEL__) == LL_DAC_CHANNEL_2) \ | |
| 71 | ) | |
| 72 | #else | |
| 73 | #define IS_LL_DAC_CHANNEL(__DACX__, __DAC_CHANNEL__) \ | |
| 74 | ( \ | |
| 75 | ((__DAC_CHANNEL__) == LL_DAC_CHANNEL_1) \ | |
| 76 | ) | |
| 77 | #endif /* DAC_CHANNEL2_SUPPORT */ | |
| 78 | ||
| 79 | #define IS_LL_DAC_TRIGGER_SOURCE(__TRIGGER_SOURCE__) \ | |
| 80 | ( ((__TRIGGER_SOURCE__) == LL_DAC_TRIG_SOFTWARE) \ | |
| 81 | || ((__TRIGGER_SOURCE__) == LL_DAC_TRIG_EXT_TIM2_TRGO) \ | |
| 82 | || ((__TRIGGER_SOURCE__) == LL_DAC_TRIG_EXT_TIM3_TRGO) \ | |
| 83 | || ((__TRIGGER_SOURCE__) == LL_DAC_TRIG_EXT_TIM4_TRGO) \ | |
| 84 | || ((__TRIGGER_SOURCE__) == LL_DAC_TRIG_EXT_TIM6_TRGO) \ | |
| 85 | || ((__TRIGGER_SOURCE__) == LL_DAC_TRIG_EXT_TIM7_TRGO) \ | |
| 86 | || ((__TRIGGER_SOURCE__) == LL_DAC_TRIG_EXT_TIM15_TRGO) \ | |
| 87 | || ((__TRIGGER_SOURCE__) == LL_DAC_TRIG_EXT_EXTI_LINE9) \ | |
| 88 | ) | |
| 89 | ||
| 90 | #if defined(DAC_CR_WAVE1) | |
| 91 | #define IS_LL_DAC_WAVE_AUTO_GENER_MODE(__WAVE_AUTO_GENERATION_MODE__) \ | |
| 92 | ( ((__WAVE_AUTO_GENERATION_MODE__) == LL_DAC_WAVE_AUTO_GENERATION_NONE) \ | |
| 93 | || ((__WAVE_AUTO_GENERATION_MODE__) == LL_DAC_WAVE_AUTO_GENERATION_NOISE) \ | |
| 94 | || ((__WAVE_AUTO_GENERATION_MODE__) == LL_DAC_WAVE_AUTO_GENERATION_TRIANGLE) \ | |
| 95 | ) | |
| 96 | ||
| 97 | #define IS_LL_DAC_WAVE_AUTO_GENER_CONFIG(__WAVE_AUTO_GENERATION_CONFIG__) \ | |
| 98 | ( ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_NOISE_LFSR_UNMASK_BIT0) \ | |
| 99 | || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_NOISE_LFSR_UNMASK_BITS1_0) \ | |
| 100 | || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_NOISE_LFSR_UNMASK_BITS2_0) \ | |
| 101 | || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_NOISE_LFSR_UNMASK_BITS3_0) \ | |
| 102 | || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_NOISE_LFSR_UNMASK_BITS4_0) \ | |
| 103 | || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_NOISE_LFSR_UNMASK_BITS5_0) \ | |
| 104 | || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_NOISE_LFSR_UNMASK_BITS6_0) \ | |
| 105 | || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_NOISE_LFSR_UNMASK_BITS7_0) \ | |
| 106 | || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_NOISE_LFSR_UNMASK_BITS8_0) \ | |
| 107 | || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_NOISE_LFSR_UNMASK_BITS9_0) \ | |
| 108 | || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_NOISE_LFSR_UNMASK_BITS10_0) \ | |
| 109 | || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_NOISE_LFSR_UNMASK_BITS11_0) \ | |
| 110 | || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_TRIANGLE_AMPLITUDE_1) \ | |
| 111 | || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_TRIANGLE_AMPLITUDE_3) \ | |
| 112 | || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_TRIANGLE_AMPLITUDE_7) \ | |
| 113 | || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_TRIANGLE_AMPLITUDE_15) \ | |
| 114 | || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_TRIANGLE_AMPLITUDE_31) \ | |
| 115 | || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_TRIANGLE_AMPLITUDE_63) \ | |
| 116 | || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_TRIANGLE_AMPLITUDE_127) \ | |
| 117 | || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_TRIANGLE_AMPLITUDE_255) \ | |
| 118 | || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_TRIANGLE_AMPLITUDE_511) \ | |
| 119 | || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_TRIANGLE_AMPLITUDE_1023) \ | |
| 120 | || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_TRIANGLE_AMPLITUDE_2047) \ | |
| 121 | || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_TRIANGLE_AMPLITUDE_4095) \ | |
| 122 | ) | |
| 123 | #endif | |
| 124 | ||
| 125 | #define IS_LL_DAC_OUTPUT_BUFFER(__OUTPUT_BUFFER__) \ | |
| 126 | ( ((__OUTPUT_BUFFER__) == LL_DAC_OUTPUT_BUFFER_ENABLE) \ | |
| 127 | || ((__OUTPUT_BUFFER__) == LL_DAC_OUTPUT_BUFFER_DISABLE) \ | |
| 128 | ) | |
| 129 | ||
| 130 | /** | |
| 131 | * @} | |
| 132 | */ | |
| 133 | ||
| 134 | ||
| 135 | /* Private function prototypes -----------------------------------------------*/ | |
| 136 | ||
| 137 | /* Exported functions --------------------------------------------------------*/ | |
| 138 | /** @addtogroup DAC_LL_Exported_Functions | |
| 139 | * @{ | |
| 140 | */ | |
| 141 | ||
| 142 | /** @addtogroup DAC_LL_EF_Init | |
| 143 | * @{ | |
| 144 | */ | |
| 145 | ||
| 146 | /** | |
| 147 | * @brief De-initialize registers of the selected DAC instance | |
| 148 | * to their default reset values. | |
| 149 | * @param DACx DAC instance | |
| 150 | * @retval An ErrorStatus enumeration value: | |
| 151 | * - SUCCESS: DAC registers are de-initialized | |
| 152 | * - ERROR: not applicable | |
| 153 | */ | |
| 154 | ErrorStatus LL_DAC_DeInit(DAC_TypeDef *DACx) | |
| 155 | { | |
| 156 | /* Check the parameters */ | |
| 157 | assert_param(IS_DAC_ALL_INSTANCE(DACx)); | |
| 158 | ||
| 159 | /* Force reset of DAC clock */ | |
| 160 | LL_APB1_GRP1_ForceReset(LL_APB1_GRP1_PERIPH_DAC1); | |
| 161 | ||
| 162 | /* Release reset of DAC clock */ | |
| 163 | LL_APB1_GRP1_ReleaseReset(LL_APB1_GRP1_PERIPH_DAC1); | |
| 164 | ||
| 165 | return SUCCESS; | |
| 166 | } | |
| 167 | ||
| 168 | /** | |
| 169 | * @brief Initialize some features of DAC instance. | |
| 170 | * @note The setting of these parameters by function @ref LL_DAC_Init() | |
| 171 | * is conditioned to DAC state: | |
| 172 | * DAC instance must be disabled. | |
| 173 | * @param DACx DAC instance | |
| 174 | * @param DAC_Channel This parameter can be one of the following values: | |
| 175 | * @arg @ref LL_DAC_CHANNEL_1 | |
| 176 | * @arg @ref LL_DAC_CHANNEL_2 (1) | |
| 177 | * | |
| 178 | * (1) On this STM32 serie, parameter not available on all devices. | |
| 179 | * Refer to device datasheet for channels availability. | |
| 180 | * @param DAC_InitStruct Pointer to a @ref LL_DAC_InitTypeDef structure | |
| 181 | * @retval An ErrorStatus enumeration value: | |
| 182 | * - SUCCESS: DAC registers are initialized | |
| 183 | * - ERROR: DAC registers are not initialized | |
| 184 | */ | |
| 185 | ErrorStatus LL_DAC_Init(DAC_TypeDef *DACx, uint32_t DAC_Channel, LL_DAC_InitTypeDef *DAC_InitStruct) | |
| 186 | { | |
| 187 | ErrorStatus status = SUCCESS; | |
| 188 | ||
| 189 | /* Check the parameters */ | |
| 190 | assert_param(IS_DAC_ALL_INSTANCE(DACx)); | |
| 191 | assert_param(IS_LL_DAC_CHANNEL(DACx, DAC_Channel)); | |
| 192 | assert_param(IS_LL_DAC_TRIGGER_SOURCE(DAC_InitStruct->TriggerSource)); | |
| 193 | assert_param(IS_LL_DAC_OUTPUT_BUFFER(DAC_InitStruct->OutputBuffer)); | |
| 194 | #if defined(DAC_CR_WAVE1) | |
| 195 | assert_param(IS_LL_DAC_WAVE_AUTO_GENER_MODE(DAC_InitStruct->WaveAutoGeneration)); | |
| 196 | if (DAC_InitStruct->WaveAutoGeneration != LL_DAC_WAVE_AUTO_GENERATION_NONE) | |
| 197 | { | |
| 198 | assert_param(IS_LL_DAC_WAVE_AUTO_GENER_CONFIG(DAC_InitStruct->WaveAutoGenerationConfig)); | |
| 199 | } | |
| 200 | #endif | |
| 201 | ||
| 202 | /* Note: Hardware constraint (refer to description of this function) */ | |
| 203 | /* DAC instance must be disabled. */ | |
| 204 | if(LL_DAC_IsEnabled(DACx, DAC_Channel) == 0U) | |
| 205 | { | |
| 206 | /* Configuration of DAC channel: */ | |
| 207 | /* - TriggerSource */ | |
| 208 | #if defined(DAC_CR_WAVE1) | |
| 209 | /* - WaveAutoGeneration */ | |
| 210 | #endif | |
| 211 | /* - OutputBuffer */ | |
| 212 | #if defined(DAC_CR_WAVE1) | |
| 213 | if (DAC_InitStruct->WaveAutoGeneration != LL_DAC_WAVE_AUTO_GENERATION_NONE) | |
| 214 | { | |
| 215 | MODIFY_REG(DACx->CR, | |
| 216 | ( DAC_CR_TSEL1 | |
| 217 | | DAC_CR_WAVE1 | |
| 218 | | DAC_CR_MAMP1 | |
| 219 | | DAC_CR_BOFF1 | |
| 220 | ) << (DAC_Channel & DAC_CR_CHX_BITOFFSET_MASK) | |
| 221 | , | |
| 222 | ( DAC_InitStruct->TriggerSource | |
| 223 | | DAC_InitStruct->WaveAutoGeneration | |
| 224 | | DAC_InitStruct->WaveAutoGenerationConfig | |
| 225 | | DAC_InitStruct->OutputBuffer | |
| 226 | ) << (DAC_Channel & DAC_CR_CHX_BITOFFSET_MASK) | |
| 227 | ); | |
| 228 | } | |
| 229 | else | |
| 230 | { | |
| 231 | MODIFY_REG(DACx->CR, | |
| 232 | ( DAC_CR_TSEL1 | |
| 233 | | DAC_CR_WAVE1 | |
| 234 | | DAC_CR_BOFF1 | |
| 235 | ) << (DAC_Channel & DAC_CR_CHX_BITOFFSET_MASK) | |
| 236 | , | |
| 237 | ( DAC_InitStruct->TriggerSource | |
| 238 | | LL_DAC_WAVE_AUTO_GENERATION_NONE | |
| 239 | | DAC_InitStruct->OutputBuffer | |
| 240 | ) << (DAC_Channel & DAC_CR_CHX_BITOFFSET_MASK) | |
| 241 | ); | |
| 242 | } | |
| 243 | #endif | |
| 244 | } | |
| 245 | else | |
| 246 | { | |
| 247 | /* Initialization error: DAC instance is not disabled. */ | |
| 248 | status = ERROR; | |
| 249 | } | |
| 250 | return status; | |
| 251 | } | |
| 252 | ||
| 253 | /** | |
| 254 | * @brief Set each @ref LL_DAC_InitTypeDef field to default value. | |
| 255 | * @param DAC_InitStruct pointer to a @ref LL_DAC_InitTypeDef structure | |
| 256 | * whose fields will be set to default values. | |
| 257 | * @retval None | |
| 258 | */ | |
| 259 | void LL_DAC_StructInit(LL_DAC_InitTypeDef *DAC_InitStruct) | |
| 260 | { | |
| 261 | /* Set DAC_InitStruct fields to default values */ | |
| 262 | DAC_InitStruct->TriggerSource = LL_DAC_TRIG_SOFTWARE; | |
| 263 | #if defined(DAC_CR_WAVE1) | |
| 264 | DAC_InitStruct->WaveAutoGeneration = LL_DAC_WAVE_AUTO_GENERATION_NONE; | |
| 265 | /* Note: Parameter discarded if wave auto generation is disabled, */ | |
| 266 | /* set anyway to its default value. */ | |
| 267 | DAC_InitStruct->WaveAutoGenerationConfig = LL_DAC_NOISE_LFSR_UNMASK_BIT0; | |
| 268 | #endif | |
| 269 | DAC_InitStruct->OutputBuffer = LL_DAC_OUTPUT_BUFFER_ENABLE; | |
| 270 | } | |
| 271 | ||
| 272 | /** | |
| 273 | * @} | |
| 274 | */ | |
| 275 | ||
| 276 | /** | |
| 277 | * @} | |
| 278 | */ | |
| 279 | ||
| 280 | /** | |
| 281 | * @} | |
| 282 | */ | |
| 283 | ||
| 284 | #endif /* DAC1 */ | |
| 285 | ||
| 286 | /** | |
| 287 | * @} | |
| 288 | */ | |
| 289 | ||
| 290 | #endif /* USE_FULL_LL_DRIVER */ | |
| 291 | ||
| 292 | /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/ | |
