stm32f4xx_dac.h 14 KB

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  1. /**
  2. ******************************************************************************
  3. * @file stm32f4xx_dac.h
  4. * @author MCD Application Team
  5. * @version V1.5.0
  6. * @date 06-March-2015
  7. * @brief This file contains all the functions prototypes for the DAC firmware
  8. * library.
  9. ******************************************************************************
  10. * @attention
  11. *
  12. * <h2><center>&copy; COPYRIGHT 2015 STMicroelectronics</center></h2>
  13. *
  14. * Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
  15. * You may not use this file except in compliance with the License.
  16. * You may obtain a copy of the License at:
  17. *
  18. * http://www.st.com/software_license_agreement_liberty_v2
  19. *
  20. * Unless required by applicable law or agreed to in writing, software
  21. * distributed under the License is distributed on an "AS IS" BASIS,
  22. * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  23. * See the License for the specific language governing permissions and
  24. * limitations under the License.
  25. *
  26. ******************************************************************************
  27. */
  28. /* Define to prevent recursive inclusion -------------------------------------*/
  29. #ifndef __STM32F4xx_DAC_H
  30. #define __STM32F4xx_DAC_H
  31. #ifdef __cplusplus
  32. extern "C" {
  33. #endif
  34. /* Includes ------------------------------------------------------------------*/
  35. #include "stm32f4xx.h"
  36. /** @addtogroup STM32F4xx_StdPeriph_Driver
  37. * @{
  38. */
  39. /** @addtogroup DAC
  40. * @{
  41. */
  42. /* Exported types ------------------------------------------------------------*/
  43. /**
  44. * @brief DAC Init structure definition
  45. */
  46. typedef struct
  47. {
  48. uint32_t DAC_Trigger; /*!< Specifies the external trigger for the selected DAC channel.
  49. This parameter can be a value of @ref DAC_trigger_selection */
  50. uint32_t DAC_WaveGeneration; /*!< Specifies whether DAC channel noise waves or triangle waves
  51. are generated, or whether no wave is generated.
  52. This parameter can be a value of @ref DAC_wave_generation */
  53. uint32_t DAC_LFSRUnmask_TriangleAmplitude; /*!< Specifies the LFSR mask for noise wave generation or
  54. the maximum amplitude triangle generation for the DAC channel.
  55. This parameter can be a value of @ref DAC_lfsrunmask_triangleamplitude */
  56. uint32_t DAC_OutputBuffer; /*!< Specifies whether the DAC channel output buffer is enabled or disabled.
  57. This parameter can be a value of @ref DAC_output_buffer */
  58. }DAC_InitTypeDef;
  59. /* Exported constants --------------------------------------------------------*/
  60. /** @defgroup DAC_Exported_Constants
  61. * @{
  62. */
  63. /** @defgroup DAC_trigger_selection
  64. * @{
  65. */
  66. #define DAC_Trigger_None ((uint32_t)0x00000000) /*!< Conversion is automatic once the DAC1_DHRxxxx register
  67. has been loaded, and not by external trigger */
  68. #define DAC_Trigger_T2_TRGO ((uint32_t)0x00000024) /*!< TIM2 TRGO selected as external conversion trigger for DAC channel */
  69. #define DAC_Trigger_T4_TRGO ((uint32_t)0x0000002C) /*!< TIM4 TRGO selected as external conversion trigger for DAC channel */
  70. #define DAC_Trigger_T5_TRGO ((uint32_t)0x0000001C) /*!< TIM5 TRGO selected as external conversion trigger for DAC channel */
  71. #define DAC_Trigger_T6_TRGO ((uint32_t)0x00000004) /*!< TIM6 TRGO selected as external conversion trigger for DAC channel */
  72. #define DAC_Trigger_T7_TRGO ((uint32_t)0x00000014) /*!< TIM7 TRGO selected as external conversion trigger for DAC channel */
  73. #define DAC_Trigger_T8_TRGO ((uint32_t)0x0000000C) /*!< TIM8 TRGO selected as external conversion trigger for DAC channel */
  74. #define DAC_Trigger_Ext_IT9 ((uint32_t)0x00000034) /*!< EXTI Line9 event selected as external conversion trigger for DAC channel */
  75. #define DAC_Trigger_Software ((uint32_t)0x0000003C) /*!< Conversion started by software trigger for DAC channel */
  76. #define IS_DAC_TRIGGER(TRIGGER) (((TRIGGER) == DAC_Trigger_None) || \
  77. ((TRIGGER) == DAC_Trigger_T6_TRGO) || \
  78. ((TRIGGER) == DAC_Trigger_T8_TRGO) || \
  79. ((TRIGGER) == DAC_Trigger_T7_TRGO) || \
  80. ((TRIGGER) == DAC_Trigger_T5_TRGO) || \
  81. ((TRIGGER) == DAC_Trigger_T2_TRGO) || \
  82. ((TRIGGER) == DAC_Trigger_T4_TRGO) || \
  83. ((TRIGGER) == DAC_Trigger_Ext_IT9) || \
  84. ((TRIGGER) == DAC_Trigger_Software))
  85. /**
  86. * @}
  87. */
  88. /** @defgroup DAC_wave_generation
  89. * @{
  90. */
  91. #define DAC_WaveGeneration_None ((uint32_t)0x00000000)
  92. #define DAC_WaveGeneration_Noise ((uint32_t)0x00000040)
  93. #define DAC_WaveGeneration_Triangle ((uint32_t)0x00000080)
  94. #define IS_DAC_GENERATE_WAVE(WAVE) (((WAVE) == DAC_WaveGeneration_None) || \
  95. ((WAVE) == DAC_WaveGeneration_Noise) || \
  96. ((WAVE) == DAC_WaveGeneration_Triangle))
  97. /**
  98. * @}
  99. */
  100. /** @defgroup DAC_lfsrunmask_triangleamplitude
  101. * @{
  102. */
  103. #define DAC_LFSRUnmask_Bit0 ((uint32_t)0x00000000) /*!< Unmask DAC channel LFSR bit0 for noise wave generation */
  104. #define DAC_LFSRUnmask_Bits1_0 ((uint32_t)0x00000100) /*!< Unmask DAC channel LFSR bit[1:0] for noise wave generation */
  105. #define DAC_LFSRUnmask_Bits2_0 ((uint32_t)0x00000200) /*!< Unmask DAC channel LFSR bit[2:0] for noise wave generation */
  106. #define DAC_LFSRUnmask_Bits3_0 ((uint32_t)0x00000300) /*!< Unmask DAC channel LFSR bit[3:0] for noise wave generation */
  107. #define DAC_LFSRUnmask_Bits4_0 ((uint32_t)0x00000400) /*!< Unmask DAC channel LFSR bit[4:0] for noise wave generation */
  108. #define DAC_LFSRUnmask_Bits5_0 ((uint32_t)0x00000500) /*!< Unmask DAC channel LFSR bit[5:0] for noise wave generation */
  109. #define DAC_LFSRUnmask_Bits6_0 ((uint32_t)0x00000600) /*!< Unmask DAC channel LFSR bit[6:0] for noise wave generation */
  110. #define DAC_LFSRUnmask_Bits7_0 ((uint32_t)0x00000700) /*!< Unmask DAC channel LFSR bit[7:0] for noise wave generation */
  111. #define DAC_LFSRUnmask_Bits8_0 ((uint32_t)0x00000800) /*!< Unmask DAC channel LFSR bit[8:0] for noise wave generation */
  112. #define DAC_LFSRUnmask_Bits9_0 ((uint32_t)0x00000900) /*!< Unmask DAC channel LFSR bit[9:0] for noise wave generation */
  113. #define DAC_LFSRUnmask_Bits10_0 ((uint32_t)0x00000A00) /*!< Unmask DAC channel LFSR bit[10:0] for noise wave generation */
  114. #define DAC_LFSRUnmask_Bits11_0 ((uint32_t)0x00000B00) /*!< Unmask DAC channel LFSR bit[11:0] for noise wave generation */
  115. #define DAC_TriangleAmplitude_1 ((uint32_t)0x00000000) /*!< Select max triangle amplitude of 1 */
  116. #define DAC_TriangleAmplitude_3 ((uint32_t)0x00000100) /*!< Select max triangle amplitude of 3 */
  117. #define DAC_TriangleAmplitude_7 ((uint32_t)0x00000200) /*!< Select max triangle amplitude of 7 */
  118. #define DAC_TriangleAmplitude_15 ((uint32_t)0x00000300) /*!< Select max triangle amplitude of 15 */
  119. #define DAC_TriangleAmplitude_31 ((uint32_t)0x00000400) /*!< Select max triangle amplitude of 31 */
  120. #define DAC_TriangleAmplitude_63 ((uint32_t)0x00000500) /*!< Select max triangle amplitude of 63 */
  121. #define DAC_TriangleAmplitude_127 ((uint32_t)0x00000600) /*!< Select max triangle amplitude of 127 */
  122. #define DAC_TriangleAmplitude_255 ((uint32_t)0x00000700) /*!< Select max triangle amplitude of 255 */
  123. #define DAC_TriangleAmplitude_511 ((uint32_t)0x00000800) /*!< Select max triangle amplitude of 511 */
  124. #define DAC_TriangleAmplitude_1023 ((uint32_t)0x00000900) /*!< Select max triangle amplitude of 1023 */
  125. #define DAC_TriangleAmplitude_2047 ((uint32_t)0x00000A00) /*!< Select max triangle amplitude of 2047 */
  126. #define DAC_TriangleAmplitude_4095 ((uint32_t)0x00000B00) /*!< Select max triangle amplitude of 4095 */
  127. #define IS_DAC_LFSR_UNMASK_TRIANGLE_AMPLITUDE(VALUE) (((VALUE) == DAC_LFSRUnmask_Bit0) || \
  128. ((VALUE) == DAC_LFSRUnmask_Bits1_0) || \
  129. ((VALUE) == DAC_LFSRUnmask_Bits2_0) || \
  130. ((VALUE) == DAC_LFSRUnmask_Bits3_0) || \
  131. ((VALUE) == DAC_LFSRUnmask_Bits4_0) || \
  132. ((VALUE) == DAC_LFSRUnmask_Bits5_0) || \
  133. ((VALUE) == DAC_LFSRUnmask_Bits6_0) || \
  134. ((VALUE) == DAC_LFSRUnmask_Bits7_0) || \
  135. ((VALUE) == DAC_LFSRUnmask_Bits8_0) || \
  136. ((VALUE) == DAC_LFSRUnmask_Bits9_0) || \
  137. ((VALUE) == DAC_LFSRUnmask_Bits10_0) || \
  138. ((VALUE) == DAC_LFSRUnmask_Bits11_0) || \
  139. ((VALUE) == DAC_TriangleAmplitude_1) || \
  140. ((VALUE) == DAC_TriangleAmplitude_3) || \
  141. ((VALUE) == DAC_TriangleAmplitude_7) || \
  142. ((VALUE) == DAC_TriangleAmplitude_15) || \
  143. ((VALUE) == DAC_TriangleAmplitude_31) || \
  144. ((VALUE) == DAC_TriangleAmplitude_63) || \
  145. ((VALUE) == DAC_TriangleAmplitude_127) || \
  146. ((VALUE) == DAC_TriangleAmplitude_255) || \
  147. ((VALUE) == DAC_TriangleAmplitude_511) || \
  148. ((VALUE) == DAC_TriangleAmplitude_1023) || \
  149. ((VALUE) == DAC_TriangleAmplitude_2047) || \
  150. ((VALUE) == DAC_TriangleAmplitude_4095))
  151. /**
  152. * @}
  153. */
  154. /** @defgroup DAC_output_buffer
  155. * @{
  156. */
  157. #define DAC_OutputBuffer_Enable ((uint32_t)0x00000000)
  158. #define DAC_OutputBuffer_Disable ((uint32_t)0x00000002)
  159. #define IS_DAC_OUTPUT_BUFFER_STATE(STATE) (((STATE) == DAC_OutputBuffer_Enable) || \
  160. ((STATE) == DAC_OutputBuffer_Disable))
  161. /**
  162. * @}
  163. */
  164. /** @defgroup DAC_Channel_selection
  165. * @{
  166. */
  167. #define DAC_Channel_1 ((uint32_t)0x00000000)
  168. #define DAC_Channel_2 ((uint32_t)0x00000010)
  169. #define IS_DAC_CHANNEL(CHANNEL) (((CHANNEL) == DAC_Channel_1) || \
  170. ((CHANNEL) == DAC_Channel_2))
  171. /**
  172. * @}
  173. */
  174. /** @defgroup DAC_data_alignement
  175. * @{
  176. */
  177. #define DAC_Align_12b_R ((uint32_t)0x00000000)
  178. #define DAC_Align_12b_L ((uint32_t)0x00000004)
  179. #define DAC_Align_8b_R ((uint32_t)0x00000008)
  180. #define IS_DAC_ALIGN(ALIGN) (((ALIGN) == DAC_Align_12b_R) || \
  181. ((ALIGN) == DAC_Align_12b_L) || \
  182. ((ALIGN) == DAC_Align_8b_R))
  183. /**
  184. * @}
  185. */
  186. /** @defgroup DAC_wave_generation
  187. * @{
  188. */
  189. #define DAC_Wave_Noise ((uint32_t)0x00000040)
  190. #define DAC_Wave_Triangle ((uint32_t)0x00000080)
  191. #define IS_DAC_WAVE(WAVE) (((WAVE) == DAC_Wave_Noise) || \
  192. ((WAVE) == DAC_Wave_Triangle))
  193. /**
  194. * @}
  195. */
  196. /** @defgroup DAC_data
  197. * @{
  198. */
  199. #define IS_DAC_DATA(DATA) ((DATA) <= 0xFFF0)
  200. /**
  201. * @}
  202. */
  203. /** @defgroup DAC_interrupts_definition
  204. * @{
  205. */
  206. #define DAC_IT_DMAUDR ((uint32_t)0x00002000)
  207. #define IS_DAC_IT(IT) (((IT) == DAC_IT_DMAUDR))
  208. /**
  209. * @}
  210. */
  211. /** @defgroup DAC_flags_definition
  212. * @{
  213. */
  214. #define DAC_FLAG_DMAUDR ((uint32_t)0x00002000)
  215. #define IS_DAC_FLAG(FLAG) (((FLAG) == DAC_FLAG_DMAUDR))
  216. /**
  217. * @}
  218. */
  219. /**
  220. * @}
  221. */
  222. /* Exported macro ------------------------------------------------------------*/
  223. /* Exported functions --------------------------------------------------------*/
  224. /* Function used to set the DAC configuration to the default reset state *****/
  225. void DAC_DeInit(void);
  226. /* DAC channels configuration: trigger, output buffer, data format functions */
  227. void DAC_Init(uint32_t DAC_Channel, DAC_InitTypeDef* DAC_InitStruct);
  228. void DAC_StructInit(DAC_InitTypeDef* DAC_InitStruct);
  229. void DAC_Cmd(uint32_t DAC_Channel, FunctionalState NewState);
  230. void DAC_SoftwareTriggerCmd(uint32_t DAC_Channel, FunctionalState NewState);
  231. void DAC_DualSoftwareTriggerCmd(FunctionalState NewState);
  232. void DAC_WaveGenerationCmd(uint32_t DAC_Channel, uint32_t DAC_Wave, FunctionalState NewState);
  233. void DAC_SetChannel1Data(uint32_t DAC_Align, uint16_t Data);
  234. void DAC_SetChannel2Data(uint32_t DAC_Align, uint16_t Data);
  235. void DAC_SetDualChannelData(uint32_t DAC_Align, uint16_t Data2, uint16_t Data1);
  236. uint16_t DAC_GetDataOutputValue(uint32_t DAC_Channel);
  237. /* DMA management functions ***************************************************/
  238. void DAC_DMACmd(uint32_t DAC_Channel, FunctionalState NewState);
  239. /* Interrupts and flags management functions **********************************/
  240. void DAC_ITConfig(uint32_t DAC_Channel, uint32_t DAC_IT, FunctionalState NewState);
  241. FlagStatus DAC_GetFlagStatus(uint32_t DAC_Channel, uint32_t DAC_FLAG);
  242. void DAC_ClearFlag(uint32_t DAC_Channel, uint32_t DAC_FLAG);
  243. ITStatus DAC_GetITStatus(uint32_t DAC_Channel, uint32_t DAC_IT);
  244. void DAC_ClearITPendingBit(uint32_t DAC_Channel, uint32_t DAC_IT);
  245. #ifdef __cplusplus
  246. }
  247. #endif
  248. #endif /*__STM32F4xx_DAC_H */
  249. /**
  250. * @}
  251. */
  252. /**
  253. * @}
  254. */
  255. /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/