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   1 /**
   2   ******************************************************************************
   3   * @file    stm32f4xx_dac.h
   4   * @author  MCD Application Team
   5   * @version V1.0.0RC1
   6   * @date    25-August-2011
   7   * @brief   This file contains all the functions prototypes for the DAC firmware
   8   *          library.
   9   ******************************************************************************
  10   * @attention
  11   *
  12   * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS
  13   * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE
  14   * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY
  15   * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING
  16   * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE
  17   * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS.
  18   *
  19   * <h2><center>&copy; COPYRIGHT 2011 STMicroelectronics</center></h2>
  20   ******************************************************************************
  21   */
  22
  23 /* Define to prevent recursive inclusion -------------------------------------*/
  24 #ifndef __STM32F4xx_DAC_H
  25 #define __STM32F4xx_DAC_H
  26
  27 #ifdef __cplusplus
  28  extern "C" {
  29 #endif
  30
  31 /* Includes ------------------------------------------------------------------*/
  32 #include "stm32f4xx.h"
  33
  34 /** @addtogroup STM32F4xx_StdPeriph_Driver
  35   * @{
  36   */
  37
  38 /** @addtogroup DAC
  39   * @{
  40   */
  41
  42 /* Exported types ------------------------------------------------------------*/
  43
  44 /**
  45   * @brief  DAC Init structure definition
  46   */
  47
  48 typedef struct
  49 {
  50   uint32_t DAC_Trigger;                      /*!< Specifies the external trigger for the selected DAC channel.
  51                                                   This parameter can be a value of @ref DAC_trigger_selection */
  52
  53   uint32_t DAC_WaveGeneration;               /*!< Specifies whether DAC channel noise waves or triangle waves
  54                                                   are generated, or whether no wave is generated.
  55                                                   This parameter can be a value of @ref DAC_wave_generation */
  56
  57   uint32_t DAC_LFSRUnmask_TriangleAmplitude; /*!< Specifies the LFSR mask for noise wave generation or
  58                                                   the maximum amplitude triangle generation for the DAC channel.
  59                                                   This parameter can be a value of @ref DAC_lfsrunmask_triangleamplitude */
  60
  61   uint32_t DAC_OutputBuffer;                 /*!< Specifies whether the DAC channel output buffer is enabled or disabled.
  62                                                   This parameter can be a value of @ref DAC_output_buffer */
  63 }DAC_InitTypeDef;
  64
  65 /* Exported constants --------------------------------------------------------*/
  66
  67 /** @defgroup DAC_Exported_Constants
  68   * @{
  69   */
  70
  71 /** @defgroup DAC_trigger_selection
  72   * @{
  73   */
  74
  75 #define DAC_Trigger_None                   ((uint32_t)0x00000000) /*!< Conversion is automatic once the DAC1_DHRxxxx register
  76                                                                        has been loaded, and not by external trigger */
  77 #define DAC_Trigger_T2_TRGO                ((uint32_t)0x00000024) /*!< TIM2 TRGO selected as external conversion trigger for DAC channel */
  78 #define DAC_Trigger_T4_TRGO                ((uint32_t)0x0000002C) /*!< TIM4 TRGO selected as external conversion trigger for DAC channel */
  79 #define DAC_Trigger_T5_TRGO                ((uint32_t)0x0000001C) /*!< TIM5 TRGO selected as external conversion trigger for DAC channel */
  80 #define DAC_Trigger_T6_TRGO                ((uint32_t)0x00000004) /*!< TIM6 TRGO selected as external conversion trigger for DAC channel */
  81 #define DAC_Trigger_T7_TRGO                ((uint32_t)0x00000014) /*!< TIM7 TRGO selected as external conversion trigger for DAC channel */
  82 #define DAC_Trigger_T8_TRGO                ((uint32_t)0x0000000C) /*!< TIM8 TRGO selected as external conversion trigger for DAC channel */
  83
  84 #define DAC_Trigger_Ext_IT9                ((uint32_t)0x00000034) /*!< EXTI Line9 event selected as external conversion trigger for DAC channel */
  85 #define DAC_Trigger_Software               ((uint32_t)0x0000003C) /*!< Conversion started by software trigger for DAC channel */
  86
  87 #define IS_DAC_TRIGGER(TRIGGER) (((TRIGGER) == DAC_Trigger_None) || \
  88                                  ((TRIGGER) == DAC_Trigger_T6_TRGO) || \
  89                                  ((TRIGGER) == DAC_Trigger_T8_TRGO) || \
  90                                  ((TRIGGER) == DAC_Trigger_T7_TRGO) || \
  91                                  ((TRIGGER) == DAC_Trigger_T5_TRGO) || \
  92                                  ((TRIGGER) == DAC_Trigger_T2_TRGO) || \
  93                                  ((TRIGGER) == DAC_Trigger_T4_TRGO) || \
  94                                  ((TRIGGER) == DAC_Trigger_Ext_IT9) || \
  95                                  ((TRIGGER) == DAC_Trigger_Software))
  96
  97 /**
  98   * @}
  99   */
 100
 101 /** @defgroup DAC_wave_generation
 102   * @{
 103   */
 104
 105 #define DAC_WaveGeneration_None            ((uint32_t)0x00000000)
 106 #define DAC_WaveGeneration_Noise           ((uint32_t)0x00000040)
 107 #define DAC_WaveGeneration_Triangle        ((uint32_t)0x00000080)
 108 #define IS_DAC_GENERATE_WAVE(WAVE) (((WAVE) == DAC_WaveGeneration_None) || \
 109                                     ((WAVE) == DAC_WaveGeneration_Noise) || \
 110                                     ((WAVE) == DAC_WaveGeneration_Triangle))
 111 /**
 112   * @}
 113   */
 114
 115 /** @defgroup DAC_lfsrunmask_triangleamplitude
 116   * @{
 117   */
 118
 119 #define DAC_LFSRUnmask_Bit0                ((uint32_t)0x00000000) /*!< Unmask DAC channel LFSR bit0 for noise wave generation */
 120 #define DAC_LFSRUnmask_Bits1_0             ((uint32_t)0x00000100) /*!< Unmask DAC channel LFSR bit[1:0] for noise wave generation */
 121 #define DAC_LFSRUnmask_Bits2_0             ((uint32_t)0x00000200) /*!< Unmask DAC channel LFSR bit[2:0] for noise wave generation */
 122 #define DAC_LFSRUnmask_Bits3_0             ((uint32_t)0x00000300) /*!< Unmask DAC channel LFSR bit[3:0] for noise wave generation */
 123 #define DAC_LFSRUnmask_Bits4_0             ((uint32_t)0x00000400) /*!< Unmask DAC channel LFSR bit[4:0] for noise wave generation */
 124 #define DAC_LFSRUnmask_Bits5_0             ((uint32_t)0x00000500) /*!< Unmask DAC channel LFSR bit[5:0] for noise wave generation */
 125 #define DAC_LFSRUnmask_Bits6_0             ((uint32_t)0x00000600) /*!< Unmask DAC channel LFSR bit[6:0] for noise wave generation */
 126 #define DAC_LFSRUnmask_Bits7_0             ((uint32_t)0x00000700) /*!< Unmask DAC channel LFSR bit[7:0] for noise wave generation */
 127 #define DAC_LFSRUnmask_Bits8_0             ((uint32_t)0x00000800) /*!< Unmask DAC channel LFSR bit[8:0] for noise wave generation */
 128 #define DAC_LFSRUnmask_Bits9_0             ((uint32_t)0x00000900) /*!< Unmask DAC channel LFSR bit[9:0] for noise wave generation */
 129 #define DAC_LFSRUnmask_Bits10_0            ((uint32_t)0x00000A00) /*!< Unmask DAC channel LFSR bit[10:0] for noise wave generation */
 130 #define DAC_LFSRUnmask_Bits11_0            ((uint32_t)0x00000B00) /*!< Unmask DAC channel LFSR bit[11:0] for noise wave generation */
 131 #define DAC_TriangleAmplitude_1            ((uint32_t)0x00000000) /*!< Select max triangle amplitude of 1 */
 132 #define DAC_TriangleAmplitude_3            ((uint32_t)0x00000100) /*!< Select max triangle amplitude of 3 */
 133 #define DAC_TriangleAmplitude_7            ((uint32_t)0x00000200) /*!< Select max triangle amplitude of 7 */
 134 #define DAC_TriangleAmplitude_15           ((uint32_t)0x00000300) /*!< Select max triangle amplitude of 15 */
 135 #define DAC_TriangleAmplitude_31           ((uint32_t)0x00000400) /*!< Select max triangle amplitude of 31 */
 136 #define DAC_TriangleAmplitude_63           ((uint32_t)0x00000500) /*!< Select max triangle amplitude of 63 */
 137 #define DAC_TriangleAmplitude_127          ((uint32_t)0x00000600) /*!< Select max triangle amplitude of 127 */
 138 #define DAC_TriangleAmplitude_255          ((uint32_t)0x00000700) /*!< Select max triangle amplitude of 255 */
 139 #define DAC_TriangleAmplitude_511          ((uint32_t)0x00000800) /*!< Select max triangle amplitude of 511 */
 140 #define DAC_TriangleAmplitude_1023         ((uint32_t)0x00000900) /*!< Select max triangle amplitude of 1023 */
 141 #define DAC_TriangleAmplitude_2047         ((uint32_t)0x00000A00) /*!< Select max triangle amplitude of 2047 */
 142 #define DAC_TriangleAmplitude_4095         ((uint32_t)0x00000B00) /*!< Select max triangle amplitude of 4095 */
 143
 144 #define IS_DAC_LFSR_UNMASK_TRIANGLE_AMPLITUDE(VALUE) (((VALUE) == DAC_LFSRUnmask_Bit0) || \
 145                                                       ((VALUE) == DAC_LFSRUnmask_Bits1_0) || \
 146                                                       ((VALUE) == DAC_LFSRUnmask_Bits2_0) || \
 147                                                       ((VALUE) == DAC_LFSRUnmask_Bits3_0) || \
 148                                                       ((VALUE) == DAC_LFSRUnmask_Bits4_0) || \
 149                                                       ((VALUE) == DAC_LFSRUnmask_Bits5_0) || \
 150                                                       ((VALUE) == DAC_LFSRUnmask_Bits6_0) || \
 151                                                       ((VALUE) == DAC_LFSRUnmask_Bits7_0) || \
 152                                                       ((VALUE) == DAC_LFSRUnmask_Bits8_0) || \
 153                                                       ((VALUE) == DAC_LFSRUnmask_Bits9_0) || \
 154                                                       ((VALUE) == DAC_LFSRUnmask_Bits10_0) || \
 155                                                       ((VALUE) == DAC_LFSRUnmask_Bits11_0) || \
 156                                                       ((VALUE) == DAC_TriangleAmplitude_1) || \
 157                                                       ((VALUE) == DAC_TriangleAmplitude_3) || \
 158                                                       ((VALUE) == DAC_TriangleAmplitude_7) || \
 159                                                       ((VALUE) == DAC_TriangleAmplitude_15) || \
 160                                                       ((VALUE) == DAC_TriangleAmplitude_31) || \
 161                                                       ((VALUE) == DAC_TriangleAmplitude_63) || \
 162                                                       ((VALUE) == DAC_TriangleAmplitude_127) || \
 163                                                       ((VALUE) == DAC_TriangleAmplitude_255) || \
 164                                                       ((VALUE) == DAC_TriangleAmplitude_511) || \
 165                                                       ((VALUE) == DAC_TriangleAmplitude_1023) || \
 166                                                       ((VALUE) == DAC_TriangleAmplitude_2047) || \
 167                                                       ((VALUE) == DAC_TriangleAmplitude_4095))
 168 /**
 169   * @}
 170   */
 171
 172 /** @defgroup DAC_output_buffer
 173   * @{
 174   */
 175
 176 #define DAC_OutputBuffer_Enable            ((uint32_t)0x00000000)
 177 #define DAC_OutputBuffer_Disable           ((uint32_t)0x00000002)
 178 #define IS_DAC_OUTPUT_BUFFER_STATE(STATE) (((STATE) == DAC_OutputBuffer_Enable) || \
 179                                            ((STATE) == DAC_OutputBuffer_Disable))
 180 /**
 181   * @}
 182   */
 183
 184 /** @defgroup DAC_Channel_selection
 185   * @{
 186   */
 187
 188 #define DAC_Channel_1                      ((uint32_t)0x00000000)
 189 #define DAC_Channel_2                      ((uint32_t)0x00000010)
 190 #define IS_DAC_CHANNEL(CHANNEL) (((CHANNEL) == DAC_Channel_1) || \
 191                                  ((CHANNEL) == DAC_Channel_2))
 192 /**
 193   * @}
 194   */
 195
 196 /** @defgroup DAC_data_alignement
 197   * @{
 198   */
 199
 200 #define DAC_Align_12b_R                    ((uint32_t)0x00000000)
 201 #define DAC_Align_12b_L                    ((uint32_t)0x00000004)
 202 #define DAC_Align_8b_R                     ((uint32_t)0x00000008)
 203 #define IS_DAC_ALIGN(ALIGN) (((ALIGN) == DAC_Align_12b_R) || \
 204                              ((ALIGN) == DAC_Align_12b_L) || \
 205                              ((ALIGN) == DAC_Align_8b_R))
 206 /**
 207   * @}
 208   */
 209
 210 /** @defgroup DAC_wave_generation
 211   * @{
 212   */
 213
 214 #define DAC_Wave_Noise                     ((uint32_t)0x00000040)
 215 #define DAC_Wave_Triangle                  ((uint32_t)0x00000080)
 216 #define IS_DAC_WAVE(WAVE) (((WAVE) == DAC_Wave_Noise) || \
 217                            ((WAVE) == DAC_Wave_Triangle))
 218 /**
 219   * @}
 220   */
 221
 222 /** @defgroup DAC_data
 223   * @{
 224   */
 225
 226 #define IS_DAC_DATA(DATA) ((DATA) <= 0xFFF0)
 227 /**
 228   * @}
 229   */
 230
 231 /** @defgroup DAC_interrupts_definition
 232   * @{
 233   */
 234 #define DAC_IT_DMAUDR                      ((uint32_t)0x00002000)
 235 #define IS_DAC_IT(IT) (((IT) == DAC_IT_DMAUDR))
 236
 237 /**
 238   * @}
 239   */
 240
 241 /** @defgroup DAC_flags_definition
 242   * @{
 243   */
 244
 245 #define DAC_FLAG_DMAUDR                    ((uint32_t)0x00002000)
 246 #define IS_DAC_FLAG(FLAG) (((FLAG) == DAC_FLAG_DMAUDR))
 247
 248 /**
 249   * @}
 250   */
 251
 252 /**
 253   * @}
 254   */
 255
 256 /* Exported macro ------------------------------------------------------------*/
 257 /* Exported functions --------------------------------------------------------*/
 258
 259 /*  Function used to set the DAC configuration to the default reset state *****/
 260 void DAC_DeInit(void);
 261
 262 /*  DAC channels configuration: trigger, output buffer, data format functions */
 263 void DAC_Init(uint32_t DAC_Channel, DAC_InitTypeDef* DAC_InitStruct);
 264 void DAC_StructInit(DAC_InitTypeDef* DAC_InitStruct);
 265 void DAC_Cmd(uint32_t DAC_Channel, FunctionalState NewState);
 266 void DAC_SoftwareTriggerCmd(uint32_t DAC_Channel, FunctionalState NewState);
 267 void DAC_DualSoftwareTriggerCmd(FunctionalState NewState);
 268 void DAC_WaveGenerationCmd(uint32_t DAC_Channel, uint32_t DAC_Wave, FunctionalState NewState);
 269 void DAC_SetChannel1Data(uint32_t DAC_Align, uint16_t Data);
 270 void DAC_SetChannel2Data(uint32_t DAC_Align, uint16_t Data);
 271 void DAC_SetDualChannelData(uint32_t DAC_Align, uint16_t Data2, uint16_t Data1);
 272 uint16_t DAC_GetDataOutputValue(uint32_t DAC_Channel);
 273
 274 /* DMA management functions ***************************************************/
 275 void DAC_DMACmd(uint32_t DAC_Channel, FunctionalState NewState);
 276
 277 /* Interrupts and flags management functions **********************************/
 278 void DAC_ITConfig(uint32_t DAC_Channel, uint32_t DAC_IT, FunctionalState NewState);
 279 FlagStatus DAC_GetFlagStatus(uint32_t DAC_Channel, uint32_t DAC_FLAG);
 280 void DAC_ClearFlag(uint32_t DAC_Channel, uint32_t DAC_FLAG);
 281 ITStatus DAC_GetITStatus(uint32_t DAC_Channel, uint32_t DAC_IT);
 282 void DAC_ClearITPendingBit(uint32_t DAC_Channel, uint32_t DAC_IT);
 283
 284 #ifdef __cplusplus
 285 }
 286 #endif
 287
 288 #endif /*__STM32F4xx_DAC_H */
 289
 290 /**
 291   * @}
 292   */
 293
 294 /**
 295   * @}
 296   */
 297
 298 /******************* (C) COPYRIGHT 2011 STMicroelectronics *****END OF FILE****/