lib/main/STM32F4/Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_ll_dac.c

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