lib/main/STM32F1/Drivers/STM32F1xx_HAL_Driver/Src/stm32f1xx_ll_dac.c

   1 /**
   2   ******************************************************************************
   3   * @file    stm32f1xx_ll_dac.c
   4   * @author  MCD Application Team
   5   * @version V1.1.1
   6   * @date    12-May-2017
   7   * @brief   DAC LL module driver
   8   ******************************************************************************
   9   * @attention
  10   *
  11   * <h2><center>&copy; COPYRIGHT(c) 2016 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 "stm32f1xx_ll_dac.h"
  41 #include "stm32f1xx_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 STM32F1xx_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 #define IS_LL_DAC_CHANNEL(__DACX__, __DAC_CHANNEL__)                           \
  69   (                                                                            \
  70       ((__DAC_CHANNEL__) == LL_DAC_CHANNEL_1)                                  \
  71    || ((__DAC_CHANNEL__) == LL_DAC_CHANNEL_2)                                  \
  72   )
  73
  74 #define IS_LL_DAC_TRIGGER_SOURCE(__TRIGGER_SOURCE__)                           \
  75   (   ((__TRIGGER_SOURCE__) == LL_DAC_TRIG_SOFTWARE)                           \
  76    || ((__TRIGGER_SOURCE__) == LL_DAC_TRIG_EXT_TIM3_TRGO)                      \
  77    || ((__TRIGGER_SOURCE__) == LL_DAC_TRIG_EXT_TIM15_TRGO)                     \
  78    || ((__TRIGGER_SOURCE__) == LL_DAC_TRIG_EXT_TIM2_TRGO)                      \
  79    || ((__TRIGGER_SOURCE__) == LL_DAC_TRIG_EXT_TIM4_TRGO)                      \
  80    || ((__TRIGGER_SOURCE__) == LL_DAC_TRIG_EXT_TIM5_TRGO)                      \
  81    || ((__TRIGGER_SOURCE__) == LL_DAC_TRIG_EXT_TIM6_TRGO)                      \
  82    || ((__TRIGGER_SOURCE__) == LL_DAC_TRIG_EXT_TIM7_TRGO)                      \
  83    || ((__TRIGGER_SOURCE__) == LL_DAC_TRIG_EXT_TIM8_TRGO)                      \
  84    || ((__TRIGGER_SOURCE__) == LL_DAC_TRIG_EXT_EXTI_LINE9)                     \
  85   )
  86 #define IS_LL_DAC_WAVE_AUTO_GENER_MODE(__WAVE_AUTO_GENERATION_MODE__)           \
  87   (   ((__WAVE_AUTO_GENERATION_MODE__) == LL_DAC_WAVE_AUTO_GENERATION_NONE)     \
  88    || ((__WAVE_AUTO_GENERATION_MODE__) == LL_DAC_WAVE_AUTO_GENERATION_NOISE)    \
  89    || ((__WAVE_AUTO_GENERATION_MODE__) == LL_DAC_WAVE_AUTO_GENERATION_TRIANGLE) \
  90   )
  91
  92 #define IS_LL_DAC_WAVE_AUTO_GENER_CONFIG(__WAVE_AUTO_GENERATION_CONFIG__)      \
  93   (   ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_NOISE_LFSR_UNMASK_BIT0)     \
  94    || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_NOISE_LFSR_UNMASK_BITS1_0)  \
  95    || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_NOISE_LFSR_UNMASK_BITS2_0)  \
  96    || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_NOISE_LFSR_UNMASK_BITS3_0)  \
  97    || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_NOISE_LFSR_UNMASK_BITS4_0)  \
  98    || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_NOISE_LFSR_UNMASK_BITS5_0)  \
  99    || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_NOISE_LFSR_UNMASK_BITS6_0)  \
 100    || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_NOISE_LFSR_UNMASK_BITS7_0)  \
 101    || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_NOISE_LFSR_UNMASK_BITS8_0)  \
 102    || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_NOISE_LFSR_UNMASK_BITS9_0)  \
 103    || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_NOISE_LFSR_UNMASK_BITS10_0) \
 104    || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_NOISE_LFSR_UNMASK_BITS11_0) \
 105    || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_TRIANGLE_AMPLITUDE_1)       \
 106    || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_TRIANGLE_AMPLITUDE_3)       \
 107    || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_TRIANGLE_AMPLITUDE_7)       \
 108    || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_TRIANGLE_AMPLITUDE_15)      \
 109    || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_TRIANGLE_AMPLITUDE_31)      \
 110    || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_TRIANGLE_AMPLITUDE_63)      \
 111    || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_TRIANGLE_AMPLITUDE_127)     \
 112    || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_TRIANGLE_AMPLITUDE_255)     \
 113    || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_TRIANGLE_AMPLITUDE_511)     \
 114    || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_TRIANGLE_AMPLITUDE_1023)    \
 115    || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_TRIANGLE_AMPLITUDE_2047)    \
 116    || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_TRIANGLE_AMPLITUDE_4095)    \
 117   )
 118
 119 #define IS_LL_DAC_OUTPUT_BUFFER(__OUTPUT_BUFFER__)                             \
 120   (   ((__OUTPUT_BUFFER__) == LL_DAC_OUTPUT_BUFFER_ENABLE)                     \
 121    || ((__OUTPUT_BUFFER__) == LL_DAC_OUTPUT_BUFFER_DISABLE)                    \
 122   )
 123
 124 /**
 125   * @}
 126   */
 127
 128
 129 /* Private function prototypes -----------------------------------------------*/
 130
 131 /* Exported functions --------------------------------------------------------*/
 132 /** @addtogroup DAC_LL_Exported_Functions
 133   * @{
 134   */
 135
 136 /** @addtogroup DAC_LL_EF_Init
 137   * @{
 138   */
 139
 140 /**
 141   * @brief  De-initialize registers of the selected DAC instance
 142   *         to their default reset values.
 143   * @param  DACx DAC instance
 144   * @retval An ErrorStatus enumeration value:
 145   *          - SUCCESS: DAC registers are de-initialized
 146   *          - ERROR: not applicable
 147   */
 148 ErrorStatus LL_DAC_DeInit(DAC_TypeDef *DACx)
 149 {
 150   /* Check the parameters */
 151   assert_param(IS_DAC_ALL_INSTANCE(DACx));
 152
 153   /* Force reset of DAC1 clock */
 154   LL_APB1_GRP1_ForceReset(LL_APB1_GRP1_PERIPH_DAC1);
 155
 156   /* Release reset of DAC1 clock */
 157   LL_APB1_GRP1_ReleaseReset(LL_APB1_GRP1_PERIPH_DAC1);
 158   return SUCCESS;
 159 }
 160
 161 /**
 162   * @brief  Initialize some features of DAC instance.
 163   * @note   The setting of these parameters by function @ref LL_DAC_Init()
 164   *         is conditioned to DAC state:
 165   *         DAC instance must be disabled.
 166   * @param  DACx DAC instance
 167   * @param  DAC_Channel This parameter can be one of the following values:
 168   *         @arg @ref LL_DAC_CHANNEL_1
 169   *         @arg @ref LL_DAC_CHANNEL_2
 170   * @param  DAC_InitStruct Pointer to a @ref LL_DAC_InitTypeDef structure
 171   * @retval An ErrorStatus enumeration value:
 172   *          - SUCCESS: DAC registers are initialized
 173   *          - ERROR: DAC registers are not initialized
 174   */
 175 ErrorStatus LL_DAC_Init(DAC_TypeDef *DACx, uint32_t DAC_Channel, LL_DAC_InitTypeDef *DAC_InitStruct)
 176 {
 177   ErrorStatus status = SUCCESS;
 178
 179   /* Check the parameters */
 180   assert_param(IS_DAC_ALL_INSTANCE(DACx));
 181   assert_param(IS_LL_DAC_CHANNEL(DACx, DAC_Channel));
 182   assert_param(IS_LL_DAC_TRIGGER_SOURCE(DAC_InitStruct->TriggerSource));
 183   assert_param(IS_LL_DAC_OUTPUT_BUFFER(DAC_InitStruct->OutputBuffer));
 184   assert_param(IS_LL_DAC_WAVE_AUTO_GENER_MODE(DAC_InitStruct->WaveAutoGeneration));
 185   if (DAC_InitStruct->WaveAutoGeneration != LL_DAC_WAVE_AUTO_GENERATION_NONE)
 186   {
 187     assert_param(IS_LL_DAC_WAVE_AUTO_GENER_CONFIG(DAC_InitStruct->WaveAutoGenerationConfig));
 188   }
 189
 190   /* Note: Hardware constraint (refer to description of this function)        */
 191   /*       DAC instance must be disabled.                                     */
 192   if(LL_DAC_IsEnabled(DACx, DAC_Channel) == 0U)
 193   {
 194     /* Configuration of DAC channel:                                          */
 195     /*  - TriggerSource                                                       */
 196     /*  - WaveAutoGeneration                                                  */
 197     /*  - OutputBuffer                                                        */
 198     if (DAC_InitStruct->WaveAutoGeneration != LL_DAC_WAVE_AUTO_GENERATION_NONE)
 199     {
 200       MODIFY_REG(DACx->CR,
 201                  (  DAC_CR_TSEL1
 202                   | DAC_CR_WAVE1
 203                   | DAC_CR_MAMP1
 204                   | DAC_CR_BOFF1
 205                  ) << (DAC_Channel & DAC_CR_CHX_BITOFFSET_MASK)
 206                 ,
 207                  (  DAC_InitStruct->TriggerSource
 208                   | DAC_InitStruct->WaveAutoGeneration
 209                   | DAC_InitStruct->WaveAutoGenerationConfig
 210                   | DAC_InitStruct->OutputBuffer
 211                  ) << (DAC_Channel & DAC_CR_CHX_BITOFFSET_MASK)
 212                 );
 213     }
 214     else
 215     {
 216       MODIFY_REG(DACx->CR,
 217                  (  DAC_CR_TSEL1
 218                   | DAC_CR_WAVE1
 219                   | DAC_CR_BOFF1
 220                  ) << (DAC_Channel & DAC_CR_CHX_BITOFFSET_MASK)
 221                 ,
 222                  (  DAC_InitStruct->TriggerSource
 223                   | LL_DAC_WAVE_AUTO_GENERATION_NONE
 224                   | DAC_InitStruct->OutputBuffer
 225                  ) << (DAC_Channel & DAC_CR_CHX_BITOFFSET_MASK)
 226                 );
 227     }
 228   }
 229   else
 230   {
 231     /* Initialization error: DAC instance is not disabled.                    */
 232     status = ERROR;
 233   }
 234   return status;
 235 }
 236
 237 /**
 238   * @brief Set each @ref LL_DAC_InitTypeDef field to default value.
 239   * @param DAC_InitStruct pointer to a @ref LL_DAC_InitTypeDef structure
 240   *                       whose fields will be set to default values.
 241   * @retval None
 242   */
 243 void LL_DAC_StructInit(LL_DAC_InitTypeDef *DAC_InitStruct)
 244 {
 245   /* Set DAC_InitStruct fields to default values */
 246   DAC_InitStruct->TriggerSource            = LL_DAC_TRIG_SOFTWARE;
 247   DAC_InitStruct->WaveAutoGeneration       = LL_DAC_WAVE_AUTO_GENERATION_NONE;
 248   /* Note: Parameter discarded if wave auto generation is disabled,           */
 249   /*       set anyway to its default value.                                   */
 250   DAC_InitStruct->WaveAutoGenerationConfig = LL_DAC_NOISE_LFSR_UNMASK_BIT0;
 251   DAC_InitStruct->OutputBuffer             = LL_DAC_OUTPUT_BUFFER_ENABLE;
 252 }
 253
 254 /**
 255   * @}
 256   */
 257
 258 /**
 259   * @}
 260   */
 261
 262 /**
 263   * @}
 264   */
 265
 266 #endif /* DAC */
 267
 268 /**
 269   * @}
 270   */
 271
 272 #endif /* USE_FULL_LL_DRIVER */
 273
 274 /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/