stm32f4xx_ll_dac.h 65 KB

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  1. /**
  2. ******************************************************************************
  3. * @file stm32f4xx_ll_dac.h
  4. * @author MCD Application Team
  5. * @brief Header file of DAC LL module.
  6. ******************************************************************************
  7. * @attention
  8. *
  9. * <h2><center>&copy; Copyright (c) 2017 STMicroelectronics.
  10. * All rights reserved.</center></h2>
  11. *
  12. * This software component is licensed by ST under BSD 3-Clause license,
  13. * the "License"; You may not use this file except in compliance with the
  14. * License. You may obtain a copy of the License at:
  15. * opensource.org/licenses/BSD-3-Clause
  16. *
  17. ******************************************************************************
  18. */
  19. /* Define to prevent recursive inclusion -------------------------------------*/
  20. #ifndef __STM32F4xx_LL_DAC_H
  21. #define __STM32F4xx_LL_DAC_H
  22. #ifdef __cplusplus
  23. extern "C" {
  24. #endif
  25. /* Includes ------------------------------------------------------------------*/
  26. #include "stm32f4xx.h"
  27. /** @addtogroup STM32F4xx_LL_Driver
  28. * @{
  29. */
  30. #if defined(DAC)
  31. /** @defgroup DAC_LL DAC
  32. * @{
  33. */
  34. /* Private types -------------------------------------------------------------*/
  35. /* Private variables ---------------------------------------------------------*/
  36. /* Private constants ---------------------------------------------------------*/
  37. /** @defgroup DAC_LL_Private_Constants DAC Private Constants
  38. * @{
  39. */
  40. /* Internal masks for DAC channels definition */
  41. /* To select into literal LL_DAC_CHANNEL_x the relevant bits for: */
  42. /* - channel bits position into register CR */
  43. /* - channel bits position into register SWTRIG */
  44. /* - channel register offset of data holding register DHRx */
  45. /* - channel register offset of data output register DORx */
  46. #define DAC_CR_CH1_BITOFFSET 0U /* Position of channel bits into registers CR, MCR, CCR, SHHR, SHRR of channel 1 */
  47. #define DAC_CR_CH2_BITOFFSET 16U /* Position of channel bits into registers CR, MCR, CCR, SHHR, SHRR of channel 2 */
  48. #define DAC_CR_CHX_BITOFFSET_MASK (DAC_CR_CH1_BITOFFSET | DAC_CR_CH2_BITOFFSET)
  49. #define DAC_SWTR_CH1 (DAC_SWTRIGR_SWTRIG1) /* Channel bit into register SWTRIGR of channel 1. This bit is into area of LL_DAC_CR_CHx_BITOFFSET but excluded by mask DAC_CR_CHX_BITOFFSET_MASK (done to be enable to trig SW start of both DAC channels simultaneously). */
  50. #if defined(DAC_CHANNEL2_SUPPORT)
  51. #define DAC_SWTR_CH2 (DAC_SWTRIGR_SWTRIG2) /* Channel bit into register SWTRIGR of channel 2. This bit is into area of LL_DAC_CR_CHx_BITOFFSET but excluded by mask DAC_CR_CHX_BITOFFSET_MASK (done to be enable to trig SW start of both DAC channels simultaneously). */
  52. #define DAC_SWTR_CHX_MASK (DAC_SWTR_CH1 | DAC_SWTR_CH2)
  53. #else
  54. #define DAC_SWTR_CHX_MASK (DAC_SWTR_CH1)
  55. #endif /* DAC_CHANNEL2_SUPPORT */
  56. #define DAC_REG_DHR12R1_REGOFFSET 0x00000000U /* Register DHR12Rx channel 1 taken as reference */
  57. #define DAC_REG_DHR12L1_REGOFFSET 0x00100000U /* Register offset of DHR12Lx channel 1 versus DHR12Rx channel 1 (shifted left of 20 bits) */
  58. #define DAC_REG_DHR8R1_REGOFFSET 0x02000000U /* Register offset of DHR8Rx channel 1 versus DHR12Rx channel 1 (shifted left of 24 bits) */
  59. #if defined(DAC_CHANNEL2_SUPPORT)
  60. #define DAC_REG_DHR12R2_REGOFFSET 0x00030000U /* Register offset of DHR12Rx channel 2 versus DHR12Rx channel 1 (shifted left of 16 bits) */
  61. #define DAC_REG_DHR12L2_REGOFFSET 0x00400000U /* Register offset of DHR12Lx channel 2 versus DHR12Rx channel 1 (shifted left of 20 bits) */
  62. #define DAC_REG_DHR8R2_REGOFFSET 0x05000000U /* Register offset of DHR8Rx channel 2 versus DHR12Rx channel 1 (shifted left of 24 bits) */
  63. #endif /* DAC_CHANNEL2_SUPPORT */
  64. #define DAC_REG_DHR12RX_REGOFFSET_MASK 0x000F0000U
  65. #define DAC_REG_DHR12LX_REGOFFSET_MASK 0x00F00000U
  66. #define DAC_REG_DHR8RX_REGOFFSET_MASK 0x0F000000U
  67. #define DAC_REG_DHRX_REGOFFSET_MASK (DAC_REG_DHR12RX_REGOFFSET_MASK | DAC_REG_DHR12LX_REGOFFSET_MASK | DAC_REG_DHR8RX_REGOFFSET_MASK)
  68. #define DAC_REG_DOR1_REGOFFSET 0x00000000U /* Register DORx channel 1 taken as reference */
  69. #if defined(DAC_CHANNEL2_SUPPORT)
  70. #define DAC_REG_DOR2_REGOFFSET 0x10000000U /* Register offset of DORx channel 1 versus DORx channel 2 (shifted left of 28 bits) */
  71. #define DAC_REG_DORX_REGOFFSET_MASK (DAC_REG_DOR1_REGOFFSET | DAC_REG_DOR2_REGOFFSET)
  72. #else
  73. #define DAC_REG_DORX_REGOFFSET_MASK (DAC_REG_DOR1_REGOFFSET)
  74. #endif /* DAC_CHANNEL2_SUPPORT */
  75. /* DAC registers bits positions */
  76. #if defined(DAC_CHANNEL2_SUPPORT)
  77. #define DAC_DHR12RD_DACC2DHR_BITOFFSET_POS 16U /* Value equivalent to POSITION_VAL(DAC_DHR12RD_DACC2DHR) */
  78. #define DAC_DHR12LD_DACC2DHR_BITOFFSET_POS 20U /* Value equivalent to POSITION_VAL(DAC_DHR12LD_DACC2DHR) */
  79. #define DAC_DHR8RD_DACC2DHR_BITOFFSET_POS 8U /* Value equivalent to POSITION_VAL(DAC_DHR8RD_DACC2DHR) */
  80. #endif /* DAC_CHANNEL2_SUPPORT */
  81. /* Miscellaneous data */
  82. #define DAC_DIGITAL_SCALE_12BITS 4095U /* Full-scale digital value with a resolution of 12 bits (voltage range determined by analog voltage references Vref+ and Vref-, refer to reference manual) */
  83. /**
  84. * @}
  85. */
  86. /* Private macros ------------------------------------------------------------*/
  87. /** @defgroup DAC_LL_Private_Macros DAC Private Macros
  88. * @{
  89. */
  90. /**
  91. * @brief Driver macro reserved for internal use: isolate bits with the
  92. * selected mask and shift them to the register LSB
  93. * (shift mask on register position bit 0).
  94. * @param __BITS__ Bits in register 32 bits
  95. * @param __MASK__ Mask in register 32 bits
  96. * @retval Bits in register 32 bits
  97. */
  98. #define __DAC_MASK_SHIFT(__BITS__, __MASK__) \
  99. (((__BITS__) & (__MASK__)) >> POSITION_VAL((__MASK__)))
  100. /**
  101. * @brief Driver macro reserved for internal use: set a pointer to
  102. * a register from a register basis from which an offset
  103. * is applied.
  104. * @param __REG__ Register basis from which the offset is applied.
  105. * @param __REG_OFFFSET__ Offset to be applied (unit number of registers).
  106. * @retval Pointer to register address
  107. */
  108. #define __DAC_PTR_REG_OFFSET(__REG__, __REG_OFFFSET__) \
  109. ((__IO uint32_t *)((uint32_t) ((uint32_t)(&(__REG__)) + ((__REG_OFFFSET__) << 2U))))
  110. /**
  111. * @}
  112. */
  113. /* Exported types ------------------------------------------------------------*/
  114. #if defined(USE_FULL_LL_DRIVER)
  115. /** @defgroup DAC_LL_ES_INIT DAC Exported Init structure
  116. * @{
  117. */
  118. /**
  119. * @brief Structure definition of some features of DAC instance.
  120. */
  121. typedef struct
  122. {
  123. uint32_t TriggerSource; /*!< Set the conversion trigger source for the selected DAC channel: internal (SW start) or from external IP (timer event, external interrupt line).
  124. This parameter can be a value of @ref DAC_LL_EC_TRIGGER_SOURCE
  125. This feature can be modified afterwards using unitary function @ref LL_DAC_SetTriggerSource(). */
  126. uint32_t WaveAutoGeneration; /*!< Set the waveform automatic generation mode for the selected DAC channel.
  127. This parameter can be a value of @ref DAC_LL_EC_WAVE_AUTO_GENERATION_MODE
  128. This feature can be modified afterwards using unitary function @ref LL_DAC_SetWaveAutoGeneration(). */
  129. uint32_t WaveAutoGenerationConfig; /*!< Set the waveform automatic generation mode for the selected DAC channel.
  130. If waveform automatic generation mode is set to noise, this parameter can be a value of @ref DAC_LL_EC_WAVE_NOISE_LFSR_UNMASK_BITS
  131. If waveform automatic generation mode is set to triangle, this parameter can be a value of @ref DAC_LL_EC_WAVE_TRIANGLE_AMPLITUDE
  132. @note If waveform automatic generation mode is disabled, this parameter is discarded.
  133. This feature can be modified afterwards using unitary function @ref LL_DAC_SetWaveNoiseLFSR() or @ref LL_DAC_SetWaveTriangleAmplitude(), depending on the wave automatic generation selected. */
  134. uint32_t OutputBuffer; /*!< Set the output buffer for the selected DAC channel.
  135. This parameter can be a value of @ref DAC_LL_EC_OUTPUT_BUFFER
  136. This feature can be modified afterwards using unitary function @ref LL_DAC_SetOutputBuffer(). */
  137. } LL_DAC_InitTypeDef;
  138. /**
  139. * @}
  140. */
  141. #endif /* USE_FULL_LL_DRIVER */
  142. /* Exported constants --------------------------------------------------------*/
  143. /** @defgroup DAC_LL_Exported_Constants DAC Exported Constants
  144. * @{
  145. */
  146. /** @defgroup DAC_LL_EC_GET_FLAG DAC flags
  147. * @brief Flags defines which can be used with LL_DAC_ReadReg function
  148. * @{
  149. */
  150. /* DAC channel 1 flags */
  151. #define LL_DAC_FLAG_DMAUDR1 (DAC_SR_DMAUDR1) /*!< DAC channel 1 flag DMA underrun */
  152. #if defined(DAC_CHANNEL2_SUPPORT)
  153. /* DAC channel 2 flags */
  154. #define LL_DAC_FLAG_DMAUDR2 (DAC_SR_DMAUDR2) /*!< DAC channel 2 flag DMA underrun */
  155. #endif /* DAC_CHANNEL2_SUPPORT */
  156. /**
  157. * @}
  158. */
  159. /** @defgroup DAC_LL_EC_IT DAC interruptions
  160. * @brief IT defines which can be used with LL_DAC_ReadReg and LL_DAC_WriteReg functions
  161. * @{
  162. */
  163. #define LL_DAC_IT_DMAUDRIE1 (DAC_CR_DMAUDRIE1) /*!< DAC channel 1 interruption DMA underrun */
  164. #if defined(DAC_CHANNEL2_SUPPORT)
  165. #define LL_DAC_IT_DMAUDRIE2 (DAC_CR_DMAUDRIE2) /*!< DAC channel 2 interruption DMA underrun */
  166. #endif /* DAC_CHANNEL2_SUPPORT */
  167. /**
  168. * @}
  169. */
  170. /** @defgroup DAC_LL_EC_CHANNEL DAC channels
  171. * @{
  172. */
  173. #define LL_DAC_CHANNEL_1 (DAC_REG_DOR1_REGOFFSET | DAC_REG_DHR12R1_REGOFFSET | DAC_REG_DHR12L1_REGOFFSET | DAC_REG_DHR8R1_REGOFFSET | DAC_CR_CH1_BITOFFSET | DAC_SWTR_CH1) /*!< DAC channel 1 */
  174. #if defined(DAC_CHANNEL2_SUPPORT)
  175. #define LL_DAC_CHANNEL_2 (DAC_REG_DOR2_REGOFFSET | DAC_REG_DHR12R2_REGOFFSET | DAC_REG_DHR12L2_REGOFFSET | DAC_REG_DHR8R2_REGOFFSET | DAC_CR_CH2_BITOFFSET | DAC_SWTR_CH2) /*!< DAC channel 2 */
  176. #endif /* DAC_CHANNEL2_SUPPORT */
  177. /**
  178. * @}
  179. */
  180. /** @defgroup DAC_LL_EC_TRIGGER_SOURCE DAC trigger source
  181. * @{
  182. */
  183. #define LL_DAC_TRIG_SOFTWARE (DAC_CR_TSEL1_2 | DAC_CR_TSEL1_1 | DAC_CR_TSEL1_0) /*!< DAC channel conversion trigger internal (SW start) */
  184. #define LL_DAC_TRIG_EXT_TIM2_TRGO (DAC_CR_TSEL1_2 ) /*!< DAC channel conversion trigger from external IP: TIM2 TRGO. */
  185. #define LL_DAC_TRIG_EXT_TIM8_TRGO ( DAC_CR_TSEL1_0) /*!< DAC channel conversion trigger from external IP: TIM8 TRGO. */
  186. #define LL_DAC_TRIG_EXT_TIM4_TRGO (DAC_CR_TSEL1_2 | DAC_CR_TSEL1_0) /*!< DAC channel conversion trigger from external IP: TIM4 TRGO. */
  187. #define LL_DAC_TRIG_EXT_TIM6_TRGO 0x00000000U /*!< DAC channel conversion trigger from external IP: TIM6 TRGO. */
  188. #define LL_DAC_TRIG_EXT_TIM7_TRGO ( DAC_CR_TSEL1_1 ) /*!< DAC channel conversion trigger from external IP: TIM7 TRGO. */
  189. #define LL_DAC_TRIG_EXT_TIM5_TRGO ( DAC_CR_TSEL1_1 | DAC_CR_TSEL1_0) /*!< DAC channel conversion trigger from external IP: TIM5 TRGO. */
  190. #define LL_DAC_TRIG_EXT_EXTI_LINE9 (DAC_CR_TSEL1_2 | DAC_CR_TSEL1_1 ) /*!< DAC channel conversion trigger from external IP: external interrupt line 9. */
  191. /**
  192. * @}
  193. */
  194. /** @defgroup DAC_LL_EC_WAVE_AUTO_GENERATION_MODE DAC waveform automatic generation mode
  195. * @{
  196. */
  197. #define LL_DAC_WAVE_AUTO_GENERATION_NONE 0x00000000U /*!< DAC channel wave auto generation mode disabled. */
  198. #define LL_DAC_WAVE_AUTO_GENERATION_NOISE (DAC_CR_WAVE1_0) /*!< DAC channel wave auto generation mode enabled, set generated noise waveform. */
  199. #define LL_DAC_WAVE_AUTO_GENERATION_TRIANGLE (DAC_CR_WAVE1_1) /*!< DAC channel wave auto generation mode enabled, set generated triangle waveform. */
  200. /**
  201. * @}
  202. */
  203. /** @defgroup DAC_LL_EC_WAVE_NOISE_LFSR_UNMASK_BITS DAC wave generation - Noise LFSR unmask bits
  204. * @{
  205. */
  206. #define LL_DAC_NOISE_LFSR_UNMASK_BIT0 0x00000000U /*!< Noise wave generation, unmask LFSR bit0, for the selected DAC channel */
  207. #define LL_DAC_NOISE_LFSR_UNMASK_BITS1_0 ( DAC_CR_MAMP1_0) /*!< Noise wave generation, unmask LFSR bits[1:0], for the selected DAC channel */
  208. #define LL_DAC_NOISE_LFSR_UNMASK_BITS2_0 ( DAC_CR_MAMP1_1 ) /*!< Noise wave generation, unmask LFSR bits[2:0], for the selected DAC channel */
  209. #define LL_DAC_NOISE_LFSR_UNMASK_BITS3_0 ( DAC_CR_MAMP1_1 | DAC_CR_MAMP1_0) /*!< Noise wave generation, unmask LFSR bits[3:0], for the selected DAC channel */
  210. #define LL_DAC_NOISE_LFSR_UNMASK_BITS4_0 ( DAC_CR_MAMP1_2 ) /*!< Noise wave generation, unmask LFSR bits[4:0], for the selected DAC channel */
  211. #define LL_DAC_NOISE_LFSR_UNMASK_BITS5_0 ( DAC_CR_MAMP1_2 | DAC_CR_MAMP1_0) /*!< Noise wave generation, unmask LFSR bits[5:0], for the selected DAC channel */
  212. #define LL_DAC_NOISE_LFSR_UNMASK_BITS6_0 ( DAC_CR_MAMP1_2 | DAC_CR_MAMP1_1 ) /*!< Noise wave generation, unmask LFSR bits[6:0], for the selected DAC channel */
  213. #define LL_DAC_NOISE_LFSR_UNMASK_BITS7_0 ( DAC_CR_MAMP1_2 | DAC_CR_MAMP1_1 | DAC_CR_MAMP1_0) /*!< Noise wave generation, unmask LFSR bits[7:0], for the selected DAC channel */
  214. #define LL_DAC_NOISE_LFSR_UNMASK_BITS8_0 (DAC_CR_MAMP1_3 ) /*!< Noise wave generation, unmask LFSR bits[8:0], for the selected DAC channel */
  215. #define LL_DAC_NOISE_LFSR_UNMASK_BITS9_0 (DAC_CR_MAMP1_3 | DAC_CR_MAMP1_0) /*!< Noise wave generation, unmask LFSR bits[9:0], for the selected DAC channel */
  216. #define LL_DAC_NOISE_LFSR_UNMASK_BITS10_0 (DAC_CR_MAMP1_3 | DAC_CR_MAMP1_1 ) /*!< Noise wave generation, unmask LFSR bits[10:0], for the selected DAC channel */
  217. #define LL_DAC_NOISE_LFSR_UNMASK_BITS11_0 (DAC_CR_MAMP1_3 | DAC_CR_MAMP1_1 | DAC_CR_MAMP1_0) /*!< Noise wave generation, unmask LFSR bits[11:0], for the selected DAC channel */
  218. /**
  219. * @}
  220. */
  221. /** @defgroup DAC_LL_EC_WAVE_TRIANGLE_AMPLITUDE DAC wave generation - Triangle amplitude
  222. * @{
  223. */
  224. #define LL_DAC_TRIANGLE_AMPLITUDE_1 0x00000000U /*!< Triangle wave generation, amplitude of 1 LSB of DAC output range, for the selected DAC channel */
  225. #define LL_DAC_TRIANGLE_AMPLITUDE_3 ( DAC_CR_MAMP1_0) /*!< Triangle wave generation, amplitude of 3 LSB of DAC output range, for the selected DAC channel */
  226. #define LL_DAC_TRIANGLE_AMPLITUDE_7 ( DAC_CR_MAMP1_1 ) /*!< Triangle wave generation, amplitude of 7 LSB of DAC output range, for the selected DAC channel */
  227. #define LL_DAC_TRIANGLE_AMPLITUDE_15 ( DAC_CR_MAMP1_1 | DAC_CR_MAMP1_0) /*!< Triangle wave generation, amplitude of 15 LSB of DAC output range, for the selected DAC channel */
  228. #define LL_DAC_TRIANGLE_AMPLITUDE_31 ( DAC_CR_MAMP1_2 ) /*!< Triangle wave generation, amplitude of 31 LSB of DAC output range, for the selected DAC channel */
  229. #define LL_DAC_TRIANGLE_AMPLITUDE_63 ( DAC_CR_MAMP1_2 | DAC_CR_MAMP1_0) /*!< Triangle wave generation, amplitude of 63 LSB of DAC output range, for the selected DAC channel */
  230. #define LL_DAC_TRIANGLE_AMPLITUDE_127 ( DAC_CR_MAMP1_2 | DAC_CR_MAMP1_1 ) /*!< Triangle wave generation, amplitude of 127 LSB of DAC output range, for the selected DAC channel */
  231. #define LL_DAC_TRIANGLE_AMPLITUDE_255 ( DAC_CR_MAMP1_2 | DAC_CR_MAMP1_1 | DAC_CR_MAMP1_0) /*!< Triangle wave generation, amplitude of 255 LSB of DAC output range, for the selected DAC channel */
  232. #define LL_DAC_TRIANGLE_AMPLITUDE_511 (DAC_CR_MAMP1_3 ) /*!< Triangle wave generation, amplitude of 512 LSB of DAC output range, for the selected DAC channel */
  233. #define LL_DAC_TRIANGLE_AMPLITUDE_1023 (DAC_CR_MAMP1_3 | DAC_CR_MAMP1_0) /*!< Triangle wave generation, amplitude of 1023 LSB of DAC output range, for the selected DAC channel */
  234. #define LL_DAC_TRIANGLE_AMPLITUDE_2047 (DAC_CR_MAMP1_3 | DAC_CR_MAMP1_1 ) /*!< Triangle wave generation, amplitude of 2047 LSB of DAC output range, for the selected DAC channel */
  235. #define LL_DAC_TRIANGLE_AMPLITUDE_4095 (DAC_CR_MAMP1_3 | DAC_CR_MAMP1_1 | DAC_CR_MAMP1_0) /*!< Triangle wave generation, amplitude of 4095 LSB of DAC output range, for the selected DAC channel */
  236. /**
  237. * @}
  238. */
  239. /** @defgroup DAC_LL_EC_OUTPUT_BUFFER DAC channel output buffer
  240. * @{
  241. */
  242. #define LL_DAC_OUTPUT_BUFFER_ENABLE 0x00000000U /*!< The selected DAC channel output is buffered: higher drive current capability, but also higher current consumption */
  243. #define LL_DAC_OUTPUT_BUFFER_DISABLE (DAC_CR_BOFF1) /*!< The selected DAC channel output is not buffered: lower drive current capability, but also lower current consumption */
  244. /**
  245. * @}
  246. */
  247. /** @defgroup DAC_LL_EC_RESOLUTION DAC channel output resolution
  248. * @{
  249. */
  250. #define LL_DAC_RESOLUTION_12B 0x00000000U /*!< DAC channel resolution 12 bits */
  251. #define LL_DAC_RESOLUTION_8B 0x00000002U /*!< DAC channel resolution 8 bits */
  252. /**
  253. * @}
  254. */
  255. /** @defgroup DAC_LL_EC_REGISTERS DAC registers compliant with specific purpose
  256. * @{
  257. */
  258. /* List of DAC registers intended to be used (most commonly) with */
  259. /* DMA transfer. */
  260. /* Refer to function @ref LL_DAC_DMA_GetRegAddr(). */
  261. #define LL_DAC_DMA_REG_DATA_12BITS_RIGHT_ALIGNED DAC_REG_DHR12RX_REGOFFSET_MASK /*!< DAC channel data holding register 12 bits right aligned */
  262. #define LL_DAC_DMA_REG_DATA_12BITS_LEFT_ALIGNED DAC_REG_DHR12LX_REGOFFSET_MASK /*!< DAC channel data holding register 12 bits left aligned */
  263. #define LL_DAC_DMA_REG_DATA_8BITS_RIGHT_ALIGNED DAC_REG_DHR8RX_REGOFFSET_MASK /*!< DAC channel data holding register 8 bits right aligned */
  264. /**
  265. * @}
  266. */
  267. /** @defgroup DAC_LL_EC_HW_DELAYS Definitions of DAC hardware constraints delays
  268. * @note Only DAC IP HW delays are defined in DAC LL driver driver,
  269. * not timeout values.
  270. * For details on delays values, refer to descriptions in source code
  271. * above each literal definition.
  272. * @{
  273. */
  274. /* Delay for DAC channel voltage settling time from DAC channel startup */
  275. /* (transition from disable to enable). */
  276. /* Note: DAC channel startup time depends on board application environment: */
  277. /* impedance connected to DAC channel output. */
  278. /* The delay below is specified under conditions: */
  279. /* - voltage maximum transition (lowest to highest value) */
  280. /* - until voltage reaches final value +-1LSB */
  281. /* - DAC channel output buffer enabled */
  282. /* - load impedance of 5kOhm (min), 50pF (max) */
  283. /* Literal set to maximum value (refer to device datasheet, */
  284. /* parameter "tWAKEUP"). */
  285. /* Unit: us */
  286. #define LL_DAC_DELAY_STARTUP_VOLTAGE_SETTLING_US 15U /*!< Delay for DAC channel voltage settling time from DAC channel startup (transition from disable to enable) */
  287. /* Delay for DAC channel voltage settling time. */
  288. /* Note: DAC channel startup time depends on board application environment: */
  289. /* impedance connected to DAC channel output. */
  290. /* The delay below is specified under conditions: */
  291. /* - voltage maximum transition (lowest to highest value) */
  292. /* - until voltage reaches final value +-1LSB */
  293. /* - DAC channel output buffer enabled */
  294. /* - load impedance of 5kOhm min, 50pF max */
  295. /* Literal set to maximum value (refer to device datasheet, */
  296. /* parameter "tSETTLING"). */
  297. /* Unit: us */
  298. #define LL_DAC_DELAY_VOLTAGE_SETTLING_US 12U /*!< Delay for DAC channel voltage settling time */
  299. /**
  300. * @}
  301. */
  302. /**
  303. * @}
  304. */
  305. /* Exported macro ------------------------------------------------------------*/
  306. /** @defgroup DAC_LL_Exported_Macros DAC Exported Macros
  307. * @{
  308. */
  309. /** @defgroup DAC_LL_EM_WRITE_READ Common write and read registers macros
  310. * @{
  311. */
  312. /**
  313. * @brief Write a value in DAC register
  314. * @param __INSTANCE__ DAC Instance
  315. * @param __REG__ Register to be written
  316. * @param __VALUE__ Value to be written in the register
  317. * @retval None
  318. */
  319. #define LL_DAC_WriteReg(__INSTANCE__, __REG__, __VALUE__) WRITE_REG(__INSTANCE__->__REG__, (__VALUE__))
  320. /**
  321. * @brief Read a value in DAC register
  322. * @param __INSTANCE__ DAC Instance
  323. * @param __REG__ Register to be read
  324. * @retval Register value
  325. */
  326. #define LL_DAC_ReadReg(__INSTANCE__, __REG__) READ_REG(__INSTANCE__->__REG__)
  327. /**
  328. * @}
  329. */
  330. /** @defgroup DAC_LL_EM_HELPER_MACRO DAC helper macro
  331. * @{
  332. */
  333. /**
  334. * @brief Helper macro to get DAC channel number in decimal format
  335. * from literals LL_DAC_CHANNEL_x.
  336. * Example:
  337. * __LL_DAC_CHANNEL_TO_DECIMAL_NB(LL_DAC_CHANNEL_1)
  338. * will return decimal number "1".
  339. * @note The input can be a value from functions where a channel
  340. * number is returned.
  341. * @param __CHANNEL__ This parameter can be one of the following values:
  342. * @arg @ref LL_DAC_CHANNEL_1
  343. * @arg @ref LL_DAC_CHANNEL_2 (1)
  344. *
  345. * (1) On this STM32 serie, parameter not available on all devices.
  346. * Refer to device datasheet for channels availability.
  347. * @retval 1...2 (value "2" depending on DAC channel 2 availability)
  348. */
  349. #define __LL_DAC_CHANNEL_TO_DECIMAL_NB(__CHANNEL__) \
  350. ((__CHANNEL__) & DAC_SWTR_CHX_MASK)
  351. /**
  352. * @brief Helper macro to get DAC channel in literal format LL_DAC_CHANNEL_x
  353. * from number in decimal format.
  354. * Example:
  355. * __LL_DAC_DECIMAL_NB_TO_CHANNEL(1)
  356. * will return a data equivalent to "LL_DAC_CHANNEL_1".
  357. * @note If the input parameter does not correspond to a DAC channel,
  358. * this macro returns value '0'.
  359. * @param __DECIMAL_NB__ 1...2 (value "2" depending on DAC channel 2 availability)
  360. * @retval Returned value can be one of the following values:
  361. * @arg @ref LL_DAC_CHANNEL_1
  362. * @arg @ref LL_DAC_CHANNEL_2 (1)
  363. *
  364. * (1) On this STM32 serie, parameter not available on all devices.
  365. * Refer to device datasheet for channels availability.
  366. */
  367. #if defined(DAC_CHANNEL2_SUPPORT)
  368. #define __LL_DAC_DECIMAL_NB_TO_CHANNEL(__DECIMAL_NB__) \
  369. (((__DECIMAL_NB__) == 1U) \
  370. ? ( \
  371. LL_DAC_CHANNEL_1 \
  372. ) \
  373. : \
  374. (((__DECIMAL_NB__) == 2U) \
  375. ? ( \
  376. LL_DAC_CHANNEL_2 \
  377. ) \
  378. : \
  379. ( \
  380. 0 \
  381. ) \
  382. ) \
  383. )
  384. #else
  385. #define __LL_DAC_DECIMAL_NB_TO_CHANNEL(__DECIMAL_NB__) \
  386. (((__DECIMAL_NB__) == 1U) \
  387. ? ( \
  388. LL_DAC_CHANNEL_1 \
  389. ) \
  390. : \
  391. ( \
  392. 0 \
  393. ) \
  394. )
  395. #endif /* DAC_CHANNEL2_SUPPORT */
  396. /**
  397. * @brief Helper macro to define the DAC conversion data full-scale digital
  398. * value corresponding to the selected DAC resolution.
  399. * @note DAC conversion data full-scale corresponds to voltage range
  400. * determined by analog voltage references Vref+ and Vref-
  401. * (refer to reference manual).
  402. * @param __DAC_RESOLUTION__ This parameter can be one of the following values:
  403. * @arg @ref LL_DAC_RESOLUTION_12B
  404. * @arg @ref LL_DAC_RESOLUTION_8B
  405. * @retval ADC conversion data equivalent voltage value (unit: mVolt)
  406. */
  407. #define __LL_DAC_DIGITAL_SCALE(__DAC_RESOLUTION__) \
  408. ((0x00000FFFU) >> ((__DAC_RESOLUTION__) << 1U))
  409. /**
  410. * @brief Helper macro to calculate the DAC conversion data (unit: digital
  411. * value) corresponding to a voltage (unit: mVolt).
  412. * @note This helper macro is intended to provide input data in voltage
  413. * rather than digital value,
  414. * to be used with LL DAC functions such as
  415. * @ref LL_DAC_ConvertData12RightAligned().
  416. * @note Analog reference voltage (Vref+) must be either known from
  417. * user board environment or can be calculated using ADC measurement
  418. * and ADC helper macro @ref __LL_ADC_CALC_VREFANALOG_VOLTAGE().
  419. * @param __VREFANALOG_VOLTAGE__ Analog reference voltage (unit mV)
  420. * @param __DAC_VOLTAGE__ Voltage to be generated by DAC channel
  421. * (unit: mVolt).
  422. * @param __DAC_RESOLUTION__ This parameter can be one of the following values:
  423. * @arg @ref LL_DAC_RESOLUTION_12B
  424. * @arg @ref LL_DAC_RESOLUTION_8B
  425. * @retval DAC conversion data (unit: digital value)
  426. */
  427. #define __LL_DAC_CALC_VOLTAGE_TO_DATA(__VREFANALOG_VOLTAGE__,\
  428. __DAC_VOLTAGE__,\
  429. __DAC_RESOLUTION__) \
  430. ((__DAC_VOLTAGE__) * __LL_DAC_DIGITAL_SCALE(__DAC_RESOLUTION__) \
  431. / (__VREFANALOG_VOLTAGE__) \
  432. )
  433. /**
  434. * @}
  435. */
  436. /**
  437. * @}
  438. */
  439. /* Exported functions --------------------------------------------------------*/
  440. /** @defgroup DAC_LL_Exported_Functions DAC Exported Functions
  441. * @{
  442. */
  443. /** @defgroup DAC_LL_EF_Configuration Configuration of DAC channels
  444. * @{
  445. */
  446. /**
  447. * @brief Set the conversion trigger source for the selected DAC channel.
  448. * @note For conversion trigger source to be effective, DAC trigger
  449. * must be enabled using function @ref LL_DAC_EnableTrigger().
  450. * @note To set conversion trigger source, DAC channel must be disabled.
  451. * Otherwise, the setting is discarded.
  452. * @note Availability of parameters of trigger sources from timer
  453. * depends on timers availability on the selected device.
  454. * @rmtoll CR TSEL1 LL_DAC_SetTriggerSource\n
  455. * CR TSEL2 LL_DAC_SetTriggerSource
  456. * @param DACx DAC instance
  457. * @param DAC_Channel This parameter can be one of the following values:
  458. * @arg @ref LL_DAC_CHANNEL_1
  459. * @arg @ref LL_DAC_CHANNEL_2 (1)
  460. *
  461. * (1) On this STM32 serie, parameter not available on all devices.
  462. * Refer to device datasheet for channels availability.
  463. * @param TriggerSource This parameter can be one of the following values:
  464. * @arg @ref LL_DAC_TRIG_SOFTWARE
  465. * @arg @ref LL_DAC_TRIG_EXT_TIM8_TRGO
  466. * @arg @ref LL_DAC_TRIG_EXT_TIM7_TRGO
  467. * @arg @ref LL_DAC_TRIG_EXT_TIM6_TRGO
  468. * @arg @ref LL_DAC_TRIG_EXT_TIM5_TRGO
  469. * @arg @ref LL_DAC_TRIG_EXT_TIM4_TRGO
  470. * @arg @ref LL_DAC_TRIG_EXT_TIM2_TRGO
  471. * @arg @ref LL_DAC_TRIG_EXT_EXTI_LINE9
  472. * @retval None
  473. */
  474. __STATIC_INLINE void LL_DAC_SetTriggerSource(DAC_TypeDef *DACx, uint32_t DAC_Channel, uint32_t TriggerSource)
  475. {
  476. MODIFY_REG(DACx->CR,
  477. DAC_CR_TSEL1 << (DAC_Channel & DAC_CR_CHX_BITOFFSET_MASK),
  478. TriggerSource << (DAC_Channel & DAC_CR_CHX_BITOFFSET_MASK));
  479. }
  480. /**
  481. * @brief Get the conversion trigger source for the selected DAC channel.
  482. * @note For conversion trigger source to be effective, DAC trigger
  483. * must be enabled using function @ref LL_DAC_EnableTrigger().
  484. * @note Availability of parameters of trigger sources from timer
  485. * depends on timers availability on the selected device.
  486. * @rmtoll CR TSEL1 LL_DAC_GetTriggerSource\n
  487. * CR TSEL2 LL_DAC_GetTriggerSource
  488. * @param DACx DAC instance
  489. * @param DAC_Channel This parameter can be one of the following values:
  490. * @arg @ref LL_DAC_CHANNEL_1
  491. * @arg @ref LL_DAC_CHANNEL_2 (1)
  492. *
  493. * (1) On this STM32 serie, parameter not available on all devices.
  494. * Refer to device datasheet for channels availability.
  495. * @retval Returned value can be one of the following values:
  496. * @arg @ref LL_DAC_TRIG_SOFTWARE
  497. * @arg @ref LL_DAC_TRIG_EXT_TIM8_TRGO
  498. * @arg @ref LL_DAC_TRIG_EXT_TIM7_TRGO
  499. * @arg @ref LL_DAC_TRIG_EXT_TIM6_TRGO
  500. * @arg @ref LL_DAC_TRIG_EXT_TIM5_TRGO
  501. * @arg @ref LL_DAC_TRIG_EXT_TIM4_TRGO
  502. * @arg @ref LL_DAC_TRIG_EXT_TIM2_TRGO
  503. * @arg @ref LL_DAC_TRIG_EXT_EXTI_LINE9
  504. */
  505. __STATIC_INLINE uint32_t LL_DAC_GetTriggerSource(DAC_TypeDef *DACx, uint32_t DAC_Channel)
  506. {
  507. return (uint32_t)(READ_BIT(DACx->CR, DAC_CR_TSEL1 << (DAC_Channel & DAC_CR_CHX_BITOFFSET_MASK))
  508. >> (DAC_Channel & DAC_CR_CHX_BITOFFSET_MASK)
  509. );
  510. }
  511. /**
  512. * @brief Set the waveform automatic generation mode
  513. * for the selected DAC channel.
  514. * @rmtoll CR WAVE1 LL_DAC_SetWaveAutoGeneration\n
  515. * CR WAVE2 LL_DAC_SetWaveAutoGeneration
  516. * @param DACx DAC instance
  517. * @param DAC_Channel This parameter can be one of the following values:
  518. * @arg @ref LL_DAC_CHANNEL_1
  519. * @arg @ref LL_DAC_CHANNEL_2 (1)
  520. *
  521. * (1) On this STM32 serie, parameter not available on all devices.
  522. * Refer to device datasheet for channels availability.
  523. * @param WaveAutoGeneration This parameter can be one of the following values:
  524. * @arg @ref LL_DAC_WAVE_AUTO_GENERATION_NONE
  525. * @arg @ref LL_DAC_WAVE_AUTO_GENERATION_NOISE
  526. * @arg @ref LL_DAC_WAVE_AUTO_GENERATION_TRIANGLE
  527. * @retval None
  528. */
  529. __STATIC_INLINE void LL_DAC_SetWaveAutoGeneration(DAC_TypeDef *DACx, uint32_t DAC_Channel, uint32_t WaveAutoGeneration)
  530. {
  531. MODIFY_REG(DACx->CR,
  532. DAC_CR_WAVE1 << (DAC_Channel & DAC_CR_CHX_BITOFFSET_MASK),
  533. WaveAutoGeneration << (DAC_Channel & DAC_CR_CHX_BITOFFSET_MASK));
  534. }
  535. /**
  536. * @brief Get the waveform automatic generation mode
  537. * for the selected DAC channel.
  538. * @rmtoll CR WAVE1 LL_DAC_GetWaveAutoGeneration\n
  539. * CR WAVE2 LL_DAC_GetWaveAutoGeneration
  540. * @param DACx DAC instance
  541. * @param DAC_Channel This parameter can be one of the following values:
  542. * @arg @ref LL_DAC_CHANNEL_1
  543. * @arg @ref LL_DAC_CHANNEL_2 (1)
  544. *
  545. * (1) On this STM32 serie, parameter not available on all devices.
  546. * Refer to device datasheet for channels availability.
  547. * @retval Returned value can be one of the following values:
  548. * @arg @ref LL_DAC_WAVE_AUTO_GENERATION_NONE
  549. * @arg @ref LL_DAC_WAVE_AUTO_GENERATION_NOISE
  550. * @arg @ref LL_DAC_WAVE_AUTO_GENERATION_TRIANGLE
  551. */
  552. __STATIC_INLINE uint32_t LL_DAC_GetWaveAutoGeneration(DAC_TypeDef *DACx, uint32_t DAC_Channel)
  553. {
  554. return (uint32_t)(READ_BIT(DACx->CR, DAC_CR_WAVE1 << (DAC_Channel & DAC_CR_CHX_BITOFFSET_MASK))
  555. >> (DAC_Channel & DAC_CR_CHX_BITOFFSET_MASK)
  556. );
  557. }
  558. /**
  559. * @brief Set the noise waveform generation for the selected DAC channel:
  560. * Noise mode and parameters LFSR (linear feedback shift register).
  561. * @note For wave generation to be effective, DAC channel
  562. * wave generation mode must be enabled using
  563. * function @ref LL_DAC_SetWaveAutoGeneration().
  564. * @note This setting can be set when the selected DAC channel is disabled
  565. * (otherwise, the setting operation is ignored).
  566. * @rmtoll CR MAMP1 LL_DAC_SetWaveNoiseLFSR\n
  567. * CR MAMP2 LL_DAC_SetWaveNoiseLFSR
  568. * @param DACx DAC instance
  569. * @param DAC_Channel This parameter can be one of the following values:
  570. * @arg @ref LL_DAC_CHANNEL_1
  571. * @arg @ref LL_DAC_CHANNEL_2 (1)
  572. *
  573. * (1) On this STM32 serie, parameter not available on all devices.
  574. * Refer to device datasheet for channels availability.
  575. * @param NoiseLFSRMask This parameter can be one of the following values:
  576. * @arg @ref LL_DAC_NOISE_LFSR_UNMASK_BIT0
  577. * @arg @ref LL_DAC_NOISE_LFSR_UNMASK_BITS1_0
  578. * @arg @ref LL_DAC_NOISE_LFSR_UNMASK_BITS2_0
  579. * @arg @ref LL_DAC_NOISE_LFSR_UNMASK_BITS3_0
  580. * @arg @ref LL_DAC_NOISE_LFSR_UNMASK_BITS4_0
  581. * @arg @ref LL_DAC_NOISE_LFSR_UNMASK_BITS5_0
  582. * @arg @ref LL_DAC_NOISE_LFSR_UNMASK_BITS6_0
  583. * @arg @ref LL_DAC_NOISE_LFSR_UNMASK_BITS7_0
  584. * @arg @ref LL_DAC_NOISE_LFSR_UNMASK_BITS8_0
  585. * @arg @ref LL_DAC_NOISE_LFSR_UNMASK_BITS9_0
  586. * @arg @ref LL_DAC_NOISE_LFSR_UNMASK_BITS10_0
  587. * @arg @ref LL_DAC_NOISE_LFSR_UNMASK_BITS11_0
  588. * @retval None
  589. */
  590. __STATIC_INLINE void LL_DAC_SetWaveNoiseLFSR(DAC_TypeDef *DACx, uint32_t DAC_Channel, uint32_t NoiseLFSRMask)
  591. {
  592. MODIFY_REG(DACx->CR,
  593. DAC_CR_MAMP1 << (DAC_Channel & DAC_CR_CHX_BITOFFSET_MASK),
  594. NoiseLFSRMask << (DAC_Channel & DAC_CR_CHX_BITOFFSET_MASK));
  595. }
  596. /**
  597. * @brief Set the noise waveform generation for the selected DAC channel:
  598. * Noise mode and parameters LFSR (linear feedback shift register).
  599. * @rmtoll CR MAMP1 LL_DAC_GetWaveNoiseLFSR\n
  600. * CR MAMP2 LL_DAC_GetWaveNoiseLFSR
  601. * @param DACx DAC instance
  602. * @param DAC_Channel This parameter can be one of the following values:
  603. * @arg @ref LL_DAC_CHANNEL_1
  604. * @arg @ref LL_DAC_CHANNEL_2 (1)
  605. *
  606. * (1) On this STM32 serie, parameter not available on all devices.
  607. * Refer to device datasheet for channels availability.
  608. * @retval Returned value can be one of the following values:
  609. * @arg @ref LL_DAC_NOISE_LFSR_UNMASK_BIT0
  610. * @arg @ref LL_DAC_NOISE_LFSR_UNMASK_BITS1_0
  611. * @arg @ref LL_DAC_NOISE_LFSR_UNMASK_BITS2_0
  612. * @arg @ref LL_DAC_NOISE_LFSR_UNMASK_BITS3_0
  613. * @arg @ref LL_DAC_NOISE_LFSR_UNMASK_BITS4_0
  614. * @arg @ref LL_DAC_NOISE_LFSR_UNMASK_BITS5_0
  615. * @arg @ref LL_DAC_NOISE_LFSR_UNMASK_BITS6_0
  616. * @arg @ref LL_DAC_NOISE_LFSR_UNMASK_BITS7_0
  617. * @arg @ref LL_DAC_NOISE_LFSR_UNMASK_BITS8_0
  618. * @arg @ref LL_DAC_NOISE_LFSR_UNMASK_BITS9_0
  619. * @arg @ref LL_DAC_NOISE_LFSR_UNMASK_BITS10_0
  620. * @arg @ref LL_DAC_NOISE_LFSR_UNMASK_BITS11_0
  621. */
  622. __STATIC_INLINE uint32_t LL_DAC_GetWaveNoiseLFSR(DAC_TypeDef *DACx, uint32_t DAC_Channel)
  623. {
  624. return (uint32_t)(READ_BIT(DACx->CR, DAC_CR_MAMP1 << (DAC_Channel & DAC_CR_CHX_BITOFFSET_MASK))
  625. >> (DAC_Channel & DAC_CR_CHX_BITOFFSET_MASK)
  626. );
  627. }
  628. /**
  629. * @brief Set the triangle waveform generation for the selected DAC channel:
  630. * triangle mode and amplitude.
  631. * @note For wave generation to be effective, DAC channel
  632. * wave generation mode must be enabled using
  633. * function @ref LL_DAC_SetWaveAutoGeneration().
  634. * @note This setting can be set when the selected DAC channel is disabled
  635. * (otherwise, the setting operation is ignored).
  636. * @rmtoll CR MAMP1 LL_DAC_SetWaveTriangleAmplitude\n
  637. * CR MAMP2 LL_DAC_SetWaveTriangleAmplitude
  638. * @param DACx DAC instance
  639. * @param DAC_Channel This parameter can be one of the following values:
  640. * @arg @ref LL_DAC_CHANNEL_1
  641. * @arg @ref LL_DAC_CHANNEL_2 (1)
  642. *
  643. * (1) On this STM32 serie, parameter not available on all devices.
  644. * Refer to device datasheet for channels availability.
  645. * @param TriangleAmplitude This parameter can be one of the following values:
  646. * @arg @ref LL_DAC_TRIANGLE_AMPLITUDE_1
  647. * @arg @ref LL_DAC_TRIANGLE_AMPLITUDE_3
  648. * @arg @ref LL_DAC_TRIANGLE_AMPLITUDE_7
  649. * @arg @ref LL_DAC_TRIANGLE_AMPLITUDE_15
  650. * @arg @ref LL_DAC_TRIANGLE_AMPLITUDE_31
  651. * @arg @ref LL_DAC_TRIANGLE_AMPLITUDE_63
  652. * @arg @ref LL_DAC_TRIANGLE_AMPLITUDE_127
  653. * @arg @ref LL_DAC_TRIANGLE_AMPLITUDE_255
  654. * @arg @ref LL_DAC_TRIANGLE_AMPLITUDE_511
  655. * @arg @ref LL_DAC_TRIANGLE_AMPLITUDE_1023
  656. * @arg @ref LL_DAC_TRIANGLE_AMPLITUDE_2047
  657. * @arg @ref LL_DAC_TRIANGLE_AMPLITUDE_4095
  658. * @retval None
  659. */
  660. __STATIC_INLINE void LL_DAC_SetWaveTriangleAmplitude(DAC_TypeDef *DACx, uint32_t DAC_Channel, uint32_t TriangleAmplitude)
  661. {
  662. MODIFY_REG(DACx->CR,
  663. DAC_CR_MAMP1 << (DAC_Channel & DAC_CR_CHX_BITOFFSET_MASK),
  664. TriangleAmplitude << (DAC_Channel & DAC_CR_CHX_BITOFFSET_MASK));
  665. }
  666. /**
  667. * @brief Set the triangle waveform generation for the selected DAC channel:
  668. * triangle mode and amplitude.
  669. * @rmtoll CR MAMP1 LL_DAC_GetWaveTriangleAmplitude\n
  670. * CR MAMP2 LL_DAC_GetWaveTriangleAmplitude
  671. * @param DACx DAC instance
  672. * @param DAC_Channel This parameter can be one of the following values:
  673. * @arg @ref LL_DAC_CHANNEL_1
  674. * @arg @ref LL_DAC_CHANNEL_2 (1)
  675. *
  676. * (1) On this STM32 serie, parameter not available on all devices.
  677. * Refer to device datasheet for channels availability.
  678. * @retval Returned value can be one of the following values:
  679. * @arg @ref LL_DAC_TRIANGLE_AMPLITUDE_1
  680. * @arg @ref LL_DAC_TRIANGLE_AMPLITUDE_3
  681. * @arg @ref LL_DAC_TRIANGLE_AMPLITUDE_7
  682. * @arg @ref LL_DAC_TRIANGLE_AMPLITUDE_15
  683. * @arg @ref LL_DAC_TRIANGLE_AMPLITUDE_31
  684. * @arg @ref LL_DAC_TRIANGLE_AMPLITUDE_63
  685. * @arg @ref LL_DAC_TRIANGLE_AMPLITUDE_127
  686. * @arg @ref LL_DAC_TRIANGLE_AMPLITUDE_255
  687. * @arg @ref LL_DAC_TRIANGLE_AMPLITUDE_511
  688. * @arg @ref LL_DAC_TRIANGLE_AMPLITUDE_1023
  689. * @arg @ref LL_DAC_TRIANGLE_AMPLITUDE_2047
  690. * @arg @ref LL_DAC_TRIANGLE_AMPLITUDE_4095
  691. */
  692. __STATIC_INLINE uint32_t LL_DAC_GetWaveTriangleAmplitude(DAC_TypeDef *DACx, uint32_t DAC_Channel)
  693. {
  694. return (uint32_t)(READ_BIT(DACx->CR, DAC_CR_MAMP1 << (DAC_Channel & DAC_CR_CHX_BITOFFSET_MASK))
  695. >> (DAC_Channel & DAC_CR_CHX_BITOFFSET_MASK)
  696. );
  697. }
  698. /**
  699. * @brief Set the output buffer for the selected DAC channel.
  700. * @rmtoll CR BOFF1 LL_DAC_SetOutputBuffer\n
  701. * CR BOFF2 LL_DAC_SetOutputBuffer
  702. * @param DACx DAC instance
  703. * @param DAC_Channel This parameter can be one of the following values:
  704. * @arg @ref LL_DAC_CHANNEL_1
  705. * @arg @ref LL_DAC_CHANNEL_2 (1)
  706. *
  707. * (1) On this STM32 serie, parameter not available on all devices.
  708. * Refer to device datasheet for channels availability.
  709. * @param OutputBuffer This parameter can be one of the following values:
  710. * @arg @ref LL_DAC_OUTPUT_BUFFER_ENABLE
  711. * @arg @ref LL_DAC_OUTPUT_BUFFER_DISABLE
  712. * @retval None
  713. */
  714. __STATIC_INLINE void LL_DAC_SetOutputBuffer(DAC_TypeDef *DACx, uint32_t DAC_Channel, uint32_t OutputBuffer)
  715. {
  716. MODIFY_REG(DACx->CR,
  717. DAC_CR_BOFF1 << (DAC_Channel & DAC_CR_CHX_BITOFFSET_MASK),
  718. OutputBuffer << (DAC_Channel & DAC_CR_CHX_BITOFFSET_MASK));
  719. }
  720. /**
  721. * @brief Get the output buffer state for the selected DAC channel.
  722. * @rmtoll CR BOFF1 LL_DAC_GetOutputBuffer\n
  723. * CR BOFF2 LL_DAC_GetOutputBuffer
  724. * @param DACx DAC instance
  725. * @param DAC_Channel This parameter can be one of the following values:
  726. * @arg @ref LL_DAC_CHANNEL_1
  727. * @arg @ref LL_DAC_CHANNEL_2 (1)
  728. *
  729. * (1) On this STM32 serie, parameter not available on all devices.
  730. * Refer to device datasheet for channels availability.
  731. * @retval Returned value can be one of the following values:
  732. * @arg @ref LL_DAC_OUTPUT_BUFFER_ENABLE
  733. * @arg @ref LL_DAC_OUTPUT_BUFFER_DISABLE
  734. */
  735. __STATIC_INLINE uint32_t LL_DAC_GetOutputBuffer(DAC_TypeDef *DACx, uint32_t DAC_Channel)
  736. {
  737. return (uint32_t)(READ_BIT(DACx->CR, DAC_CR_BOFF1 << (DAC_Channel & DAC_CR_CHX_BITOFFSET_MASK))
  738. >> (DAC_Channel & DAC_CR_CHX_BITOFFSET_MASK)
  739. );
  740. }
  741. /**
  742. * @}
  743. */
  744. /** @defgroup DAC_LL_EF_DMA_Management DMA Management
  745. * @{
  746. */
  747. /**
  748. * @brief Enable DAC DMA transfer request of the selected channel.
  749. * @note To configure DMA source address (peripheral address),
  750. * use function @ref LL_DAC_DMA_GetRegAddr().
  751. * @rmtoll CR DMAEN1 LL_DAC_EnableDMAReq\n
  752. * CR DMAEN2 LL_DAC_EnableDMAReq
  753. * @param DACx DAC instance
  754. * @param DAC_Channel This parameter can be one of the following values:
  755. * @arg @ref LL_DAC_CHANNEL_1
  756. * @arg @ref LL_DAC_CHANNEL_2 (1)
  757. *
  758. * (1) On this STM32 serie, parameter not available on all devices.
  759. * Refer to device datasheet for channels availability.
  760. * @retval None
  761. */
  762. __STATIC_INLINE void LL_DAC_EnableDMAReq(DAC_TypeDef *DACx, uint32_t DAC_Channel)
  763. {
  764. SET_BIT(DACx->CR,
  765. DAC_CR_DMAEN1 << (DAC_Channel & DAC_CR_CHX_BITOFFSET_MASK));
  766. }
  767. /**
  768. * @brief Disable DAC DMA transfer request of the selected channel.
  769. * @note To configure DMA source address (peripheral address),
  770. * use function @ref LL_DAC_DMA_GetRegAddr().
  771. * @rmtoll CR DMAEN1 LL_DAC_DisableDMAReq\n
  772. * CR DMAEN2 LL_DAC_DisableDMAReq
  773. * @param DACx DAC instance
  774. * @param DAC_Channel This parameter can be one of the following values:
  775. * @arg @ref LL_DAC_CHANNEL_1
  776. * @arg @ref LL_DAC_CHANNEL_2 (1)
  777. *
  778. * (1) On this STM32 serie, parameter not available on all devices.
  779. * Refer to device datasheet for channels availability.
  780. * @retval None
  781. */
  782. __STATIC_INLINE void LL_DAC_DisableDMAReq(DAC_TypeDef *DACx, uint32_t DAC_Channel)
  783. {
  784. CLEAR_BIT(DACx->CR,
  785. DAC_CR_DMAEN1 << (DAC_Channel & DAC_CR_CHX_BITOFFSET_MASK));
  786. }
  787. /**
  788. * @brief Get DAC DMA transfer request state of the selected channel.
  789. * (0: DAC DMA transfer request is disabled, 1: DAC DMA transfer request is enabled)
  790. * @rmtoll CR DMAEN1 LL_DAC_IsDMAReqEnabled\n
  791. * CR DMAEN2 LL_DAC_IsDMAReqEnabled
  792. * @param DACx DAC instance
  793. * @param DAC_Channel This parameter can be one of the following values:
  794. * @arg @ref LL_DAC_CHANNEL_1
  795. * @arg @ref LL_DAC_CHANNEL_2 (1)
  796. *
  797. * (1) On this STM32 serie, parameter not available on all devices.
  798. * Refer to device datasheet for channels availability.
  799. * @retval State of bit (1 or 0).
  800. */
  801. __STATIC_INLINE uint32_t LL_DAC_IsDMAReqEnabled(DAC_TypeDef *DACx, uint32_t DAC_Channel)
  802. {
  803. return (READ_BIT(DACx->CR,
  804. DAC_CR_DMAEN1 << (DAC_Channel & DAC_CR_CHX_BITOFFSET_MASK))
  805. == (DAC_CR_DMAEN1 << (DAC_Channel & DAC_CR_CHX_BITOFFSET_MASK)));
  806. }
  807. /**
  808. * @brief Function to help to configure DMA transfer to DAC: retrieve the
  809. * DAC register address from DAC instance and a list of DAC registers
  810. * intended to be used (most commonly) with DMA transfer.
  811. * @note These DAC registers are data holding registers:
  812. * when DAC conversion is requested, DAC generates a DMA transfer
  813. * request to have data available in DAC data holding registers.
  814. * @note This macro is intended to be used with LL DMA driver, refer to
  815. * function "LL_DMA_ConfigAddresses()".
  816. * Example:
  817. * LL_DMA_ConfigAddresses(DMA1,
  818. * LL_DMA_CHANNEL_1,
  819. * (uint32_t)&< array or variable >,
  820. * LL_DAC_DMA_GetRegAddr(DAC1, LL_DAC_CHANNEL_1, LL_DAC_DMA_REG_DATA_12BITS_RIGHT_ALIGNED),
  821. * LL_DMA_DIRECTION_MEMORY_TO_PERIPH);
  822. * @rmtoll DHR12R1 DACC1DHR LL_DAC_DMA_GetRegAddr\n
  823. * DHR12L1 DACC1DHR LL_DAC_DMA_GetRegAddr\n
  824. * DHR8R1 DACC1DHR LL_DAC_DMA_GetRegAddr\n
  825. * DHR12R2 DACC2DHR LL_DAC_DMA_GetRegAddr\n
  826. * DHR12L2 DACC2DHR LL_DAC_DMA_GetRegAddr\n
  827. * DHR8R2 DACC2DHR LL_DAC_DMA_GetRegAddr
  828. * @param DACx DAC instance
  829. * @param DAC_Channel This parameter can be one of the following values:
  830. * @arg @ref LL_DAC_CHANNEL_1
  831. * @arg @ref LL_DAC_CHANNEL_2 (1)
  832. *
  833. * (1) On this STM32 serie, parameter not available on all devices.
  834. * Refer to device datasheet for channels availability.
  835. * @param Register This parameter can be one of the following values:
  836. * @arg @ref LL_DAC_DMA_REG_DATA_12BITS_RIGHT_ALIGNED
  837. * @arg @ref LL_DAC_DMA_REG_DATA_12BITS_LEFT_ALIGNED
  838. * @arg @ref LL_DAC_DMA_REG_DATA_8BITS_RIGHT_ALIGNED
  839. * @retval DAC register address
  840. */
  841. __STATIC_INLINE uint32_t LL_DAC_DMA_GetRegAddr(DAC_TypeDef *DACx, uint32_t DAC_Channel, uint32_t Register)
  842. {
  843. /* Retrieve address of register DHR12Rx, DHR12Lx or DHR8Rx depending on */
  844. /* DAC channel selected. */
  845. return ((uint32_t)(__DAC_PTR_REG_OFFSET((DACx)->DHR12R1, __DAC_MASK_SHIFT(DAC_Channel, Register))));
  846. }
  847. /**
  848. * @}
  849. */
  850. /** @defgroup DAC_LL_EF_Operation Operation on DAC channels
  851. * @{
  852. */
  853. /**
  854. * @brief Enable DAC selected channel.
  855. * @rmtoll CR EN1 LL_DAC_Enable\n
  856. * CR EN2 LL_DAC_Enable
  857. * @note After enable from off state, DAC channel requires a delay
  858. * for output voltage to reach accuracy +/- 1 LSB.
  859. * Refer to device datasheet, parameter "tWAKEUP".
  860. * @param DACx DAC instance
  861. * @param DAC_Channel This parameter can be one of the following values:
  862. * @arg @ref LL_DAC_CHANNEL_1
  863. * @arg @ref LL_DAC_CHANNEL_2 (1)
  864. *
  865. * (1) On this STM32 serie, parameter not available on all devices.
  866. * Refer to device datasheet for channels availability.
  867. * @retval None
  868. */
  869. __STATIC_INLINE void LL_DAC_Enable(DAC_TypeDef *DACx, uint32_t DAC_Channel)
  870. {
  871. SET_BIT(DACx->CR,
  872. DAC_CR_EN1 << (DAC_Channel & DAC_CR_CHX_BITOFFSET_MASK));
  873. }
  874. /**
  875. * @brief Disable DAC selected channel.
  876. * @rmtoll CR EN1 LL_DAC_Disable\n
  877. * CR EN2 LL_DAC_Disable
  878. * @param DACx DAC instance
  879. * @param DAC_Channel This parameter can be one of the following values:
  880. * @arg @ref LL_DAC_CHANNEL_1
  881. * @arg @ref LL_DAC_CHANNEL_2 (1)
  882. *
  883. * (1) On this STM32 serie, parameter not available on all devices.
  884. * Refer to device datasheet for channels availability.
  885. * @retval None
  886. */
  887. __STATIC_INLINE void LL_DAC_Disable(DAC_TypeDef *DACx, uint32_t DAC_Channel)
  888. {
  889. CLEAR_BIT(DACx->CR,
  890. DAC_CR_EN1 << (DAC_Channel & DAC_CR_CHX_BITOFFSET_MASK));
  891. }
  892. /**
  893. * @brief Get DAC enable state of the selected channel.
  894. * (0: DAC channel is disabled, 1: DAC channel is enabled)
  895. * @rmtoll CR EN1 LL_DAC_IsEnabled\n
  896. * CR EN2 LL_DAC_IsEnabled
  897. * @param DACx DAC instance
  898. * @param DAC_Channel This parameter can be one of the following values:
  899. * @arg @ref LL_DAC_CHANNEL_1
  900. * @arg @ref LL_DAC_CHANNEL_2 (1)
  901. *
  902. * (1) On this STM32 serie, parameter not available on all devices.
  903. * Refer to device datasheet for channels availability.
  904. * @retval State of bit (1 or 0).
  905. */
  906. __STATIC_INLINE uint32_t LL_DAC_IsEnabled(DAC_TypeDef *DACx, uint32_t DAC_Channel)
  907. {
  908. return (READ_BIT(DACx->CR,
  909. DAC_CR_EN1 << (DAC_Channel & DAC_CR_CHX_BITOFFSET_MASK))
  910. == (DAC_CR_EN1 << (DAC_Channel & DAC_CR_CHX_BITOFFSET_MASK)));
  911. }
  912. /**
  913. * @brief Enable DAC trigger of the selected channel.
  914. * @note - If DAC trigger is disabled, DAC conversion is performed
  915. * automatically once the data holding register is updated,
  916. * using functions "LL_DAC_ConvertData{8; 12}{Right; Left} Aligned()":
  917. * @ref LL_DAC_ConvertData12RightAligned(), ...
  918. * - If DAC trigger is enabled, DAC conversion is performed
  919. * only when a hardware of software trigger event is occurring.
  920. * Select trigger source using
  921. * function @ref LL_DAC_SetTriggerSource().
  922. * @rmtoll CR TEN1 LL_DAC_EnableTrigger\n
  923. * CR TEN2 LL_DAC_EnableTrigger
  924. * @param DACx DAC instance
  925. * @param DAC_Channel This parameter can be one of the following values:
  926. * @arg @ref LL_DAC_CHANNEL_1
  927. * @arg @ref LL_DAC_CHANNEL_2 (1)
  928. *
  929. * (1) On this STM32 serie, parameter not available on all devices.
  930. * Refer to device datasheet for channels availability.
  931. * @retval None
  932. */
  933. __STATIC_INLINE void LL_DAC_EnableTrigger(DAC_TypeDef *DACx, uint32_t DAC_Channel)
  934. {
  935. SET_BIT(DACx->CR,
  936. DAC_CR_TEN1 << (DAC_Channel & DAC_CR_CHX_BITOFFSET_MASK));
  937. }
  938. /**
  939. * @brief Disable DAC trigger of the selected channel.
  940. * @rmtoll CR TEN1 LL_DAC_DisableTrigger\n
  941. * CR TEN2 LL_DAC_DisableTrigger
  942. * @param DACx DAC instance
  943. * @param DAC_Channel This parameter can be one of the following values:
  944. * @arg @ref LL_DAC_CHANNEL_1
  945. * @arg @ref LL_DAC_CHANNEL_2 (1)
  946. *
  947. * (1) On this STM32 serie, parameter not available on all devices.
  948. * Refer to device datasheet for channels availability.
  949. * @retval None
  950. */
  951. __STATIC_INLINE void LL_DAC_DisableTrigger(DAC_TypeDef *DACx, uint32_t DAC_Channel)
  952. {
  953. CLEAR_BIT(DACx->CR,
  954. DAC_CR_TEN1 << (DAC_Channel & DAC_CR_CHX_BITOFFSET_MASK));
  955. }
  956. /**
  957. * @brief Get DAC trigger state of the selected channel.
  958. * (0: DAC trigger is disabled, 1: DAC trigger is enabled)
  959. * @rmtoll CR TEN1 LL_DAC_IsTriggerEnabled\n
  960. * CR TEN2 LL_DAC_IsTriggerEnabled
  961. * @param DACx DAC instance
  962. * @param DAC_Channel This parameter can be one of the following values:
  963. * @arg @ref LL_DAC_CHANNEL_1
  964. * @arg @ref LL_DAC_CHANNEL_2 (1)
  965. *
  966. * (1) On this STM32 serie, parameter not available on all devices.
  967. * Refer to device datasheet for channels availability.
  968. * @retval State of bit (1 or 0).
  969. */
  970. __STATIC_INLINE uint32_t LL_DAC_IsTriggerEnabled(DAC_TypeDef *DACx, uint32_t DAC_Channel)
  971. {
  972. return (READ_BIT(DACx->CR,
  973. DAC_CR_TEN1 << (DAC_Channel & DAC_CR_CHX_BITOFFSET_MASK))
  974. == (DAC_CR_TEN1 << (DAC_Channel & DAC_CR_CHX_BITOFFSET_MASK)));
  975. }
  976. /**
  977. * @brief Trig DAC conversion by software for the selected DAC channel.
  978. * @note Preliminarily, DAC trigger must be set to software trigger
  979. * using function @ref LL_DAC_SetTriggerSource()
  980. * with parameter "LL_DAC_TRIGGER_SOFTWARE".
  981. * and DAC trigger must be enabled using
  982. * function @ref LL_DAC_EnableTrigger().
  983. * @note For devices featuring DAC with 2 channels: this function
  984. * can perform a SW start of both DAC channels simultaneously.
  985. * Two channels can be selected as parameter.
  986. * Example: (LL_DAC_CHANNEL_1 | LL_DAC_CHANNEL_2)
  987. * @rmtoll SWTRIGR SWTRIG1 LL_DAC_TrigSWConversion\n
  988. * SWTRIGR SWTRIG2 LL_DAC_TrigSWConversion
  989. * @param DACx DAC instance
  990. * @param DAC_Channel This parameter can a combination of the following values:
  991. * @arg @ref LL_DAC_CHANNEL_1
  992. * @arg @ref LL_DAC_CHANNEL_2 (1)
  993. *
  994. * (1) On this STM32 serie, parameter not available on all devices.
  995. * Refer to device datasheet for channels availability.
  996. * @retval None
  997. */
  998. __STATIC_INLINE void LL_DAC_TrigSWConversion(DAC_TypeDef *DACx, uint32_t DAC_Channel)
  999. {
  1000. SET_BIT(DACx->SWTRIGR,
  1001. (DAC_Channel & DAC_SWTR_CHX_MASK));
  1002. }
  1003. /**
  1004. * @brief Set the data to be loaded in the data holding register
  1005. * in format 12 bits left alignment (LSB aligned on bit 0),
  1006. * for the selected DAC channel.
  1007. * @rmtoll DHR12R1 DACC1DHR LL_DAC_ConvertData12RightAligned\n
  1008. * DHR12R2 DACC2DHR LL_DAC_ConvertData12RightAligned
  1009. * @param DACx DAC instance
  1010. * @param DAC_Channel This parameter can be one of the following values:
  1011. * @arg @ref LL_DAC_CHANNEL_1
  1012. * @arg @ref LL_DAC_CHANNEL_2 (1)
  1013. *
  1014. * (1) On this STM32 serie, parameter not available on all devices.
  1015. * Refer to device datasheet for channels availability.
  1016. * @param Data Value between Min_Data=0x000 and Max_Data=0xFFF
  1017. * @retval None
  1018. */
  1019. __STATIC_INLINE void LL_DAC_ConvertData12RightAligned(DAC_TypeDef *DACx, uint32_t DAC_Channel, uint32_t Data)
  1020. {
  1021. register __IO uint32_t *preg = __DAC_PTR_REG_OFFSET(DACx->DHR12R1, __DAC_MASK_SHIFT(DAC_Channel, DAC_REG_DHR12RX_REGOFFSET_MASK));
  1022. MODIFY_REG(*preg,
  1023. DAC_DHR12R1_DACC1DHR,
  1024. Data);
  1025. }
  1026. /**
  1027. * @brief Set the data to be loaded in the data holding register
  1028. * in format 12 bits left alignment (MSB aligned on bit 15),
  1029. * for the selected DAC channel.
  1030. * @rmtoll DHR12L1 DACC1DHR LL_DAC_ConvertData12LeftAligned\n
  1031. * DHR12L2 DACC2DHR LL_DAC_ConvertData12LeftAligned
  1032. * @param DACx DAC instance
  1033. * @param DAC_Channel This parameter can be one of the following values:
  1034. * @arg @ref LL_DAC_CHANNEL_1
  1035. * @arg @ref LL_DAC_CHANNEL_2 (1)
  1036. *
  1037. * (1) On this STM32 serie, parameter not available on all devices.
  1038. * Refer to device datasheet for channels availability.
  1039. * @param Data Value between Min_Data=0x000 and Max_Data=0xFFF
  1040. * @retval None
  1041. */
  1042. __STATIC_INLINE void LL_DAC_ConvertData12LeftAligned(DAC_TypeDef *DACx, uint32_t DAC_Channel, uint32_t Data)
  1043. {
  1044. register __IO uint32_t *preg = __DAC_PTR_REG_OFFSET(DACx->DHR12R1, __DAC_MASK_SHIFT(DAC_Channel, DAC_REG_DHR12LX_REGOFFSET_MASK));
  1045. MODIFY_REG(*preg,
  1046. DAC_DHR12L1_DACC1DHR,
  1047. Data);
  1048. }
  1049. /**
  1050. * @brief Set the data to be loaded in the data holding register
  1051. * in format 8 bits left alignment (LSB aligned on bit 0),
  1052. * for the selected DAC channel.
  1053. * @rmtoll DHR8R1 DACC1DHR LL_DAC_ConvertData8RightAligned\n
  1054. * DHR8R2 DACC2DHR LL_DAC_ConvertData8RightAligned
  1055. * @param DACx DAC instance
  1056. * @param DAC_Channel This parameter can be one of the following values:
  1057. * @arg @ref LL_DAC_CHANNEL_1
  1058. * @arg @ref LL_DAC_CHANNEL_2 (1)
  1059. *
  1060. * (1) On this STM32 serie, parameter not available on all devices.
  1061. * Refer to device datasheet for channels availability.
  1062. * @param Data Value between Min_Data=0x00 and Max_Data=0xFF
  1063. * @retval None
  1064. */
  1065. __STATIC_INLINE void LL_DAC_ConvertData8RightAligned(DAC_TypeDef *DACx, uint32_t DAC_Channel, uint32_t Data)
  1066. {
  1067. register __IO uint32_t *preg = __DAC_PTR_REG_OFFSET(DACx->DHR12R1, __DAC_MASK_SHIFT(DAC_Channel, DAC_REG_DHR8RX_REGOFFSET_MASK));
  1068. MODIFY_REG(*preg,
  1069. DAC_DHR8R1_DACC1DHR,
  1070. Data);
  1071. }
  1072. #if defined(DAC_CHANNEL2_SUPPORT)
  1073. /**
  1074. * @brief Set the data to be loaded in the data holding register
  1075. * in format 12 bits left alignment (LSB aligned on bit 0),
  1076. * for both DAC channels.
  1077. * @rmtoll DHR12RD DACC1DHR LL_DAC_ConvertDualData12RightAligned\n
  1078. * DHR12RD DACC2DHR LL_DAC_ConvertDualData12RightAligned
  1079. * @param DACx DAC instance
  1080. * @param DataChannel1 Value between Min_Data=0x000 and Max_Data=0xFFF
  1081. * @param DataChannel2 Value between Min_Data=0x000 and Max_Data=0xFFF
  1082. * @retval None
  1083. */
  1084. __STATIC_INLINE void LL_DAC_ConvertDualData12RightAligned(DAC_TypeDef *DACx, uint32_t DataChannel1, uint32_t DataChannel2)
  1085. {
  1086. MODIFY_REG(DACx->DHR12RD,
  1087. (DAC_DHR12RD_DACC2DHR | DAC_DHR12RD_DACC1DHR),
  1088. ((DataChannel2 << DAC_DHR12RD_DACC2DHR_BITOFFSET_POS) | DataChannel1));
  1089. }
  1090. /**
  1091. * @brief Set the data to be loaded in the data holding register
  1092. * in format 12 bits left alignment (MSB aligned on bit 15),
  1093. * for both DAC channels.
  1094. * @rmtoll DHR12LD DACC1DHR LL_DAC_ConvertDualData12LeftAligned\n
  1095. * DHR12LD DACC2DHR LL_DAC_ConvertDualData12LeftAligned
  1096. * @param DACx DAC instance
  1097. * @param DataChannel1 Value between Min_Data=0x000 and Max_Data=0xFFF
  1098. * @param DataChannel2 Value between Min_Data=0x000 and Max_Data=0xFFF
  1099. * @retval None
  1100. */
  1101. __STATIC_INLINE void LL_DAC_ConvertDualData12LeftAligned(DAC_TypeDef *DACx, uint32_t DataChannel1, uint32_t DataChannel2)
  1102. {
  1103. /* Note: Data of DAC channel 2 shift value subtracted of 4 because */
  1104. /* data on 16 bits and DAC channel 2 bits field is on the 12 MSB, */
  1105. /* the 4 LSB must be taken into account for the shift value. */
  1106. MODIFY_REG(DACx->DHR12LD,
  1107. (DAC_DHR12LD_DACC2DHR | DAC_DHR12LD_DACC1DHR),
  1108. ((DataChannel2 << (DAC_DHR12LD_DACC2DHR_BITOFFSET_POS - 4U)) | DataChannel1));
  1109. }
  1110. /**
  1111. * @brief Set the data to be loaded in the data holding register
  1112. * in format 8 bits left alignment (LSB aligned on bit 0),
  1113. * for both DAC channels.
  1114. * @rmtoll DHR8RD DACC1DHR LL_DAC_ConvertDualData8RightAligned\n
  1115. * DHR8RD DACC2DHR LL_DAC_ConvertDualData8RightAligned
  1116. * @param DACx DAC instance
  1117. * @param DataChannel1 Value between Min_Data=0x00 and Max_Data=0xFF
  1118. * @param DataChannel2 Value between Min_Data=0x00 and Max_Data=0xFF
  1119. * @retval None
  1120. */
  1121. __STATIC_INLINE void LL_DAC_ConvertDualData8RightAligned(DAC_TypeDef *DACx, uint32_t DataChannel1, uint32_t DataChannel2)
  1122. {
  1123. MODIFY_REG(DACx->DHR8RD,
  1124. (DAC_DHR8RD_DACC2DHR | DAC_DHR8RD_DACC1DHR),
  1125. ((DataChannel2 << DAC_DHR8RD_DACC2DHR_BITOFFSET_POS) | DataChannel1));
  1126. }
  1127. #endif /* DAC_CHANNEL2_SUPPORT */
  1128. /**
  1129. * @brief Retrieve output data currently generated for the selected DAC channel.
  1130. * @note Whatever alignment and resolution settings
  1131. * (using functions "LL_DAC_ConvertData{8; 12}{Right; Left} Aligned()":
  1132. * @ref LL_DAC_ConvertData12RightAligned(), ...),
  1133. * output data format is 12 bits right aligned (LSB aligned on bit 0).
  1134. * @rmtoll DOR1 DACC1DOR LL_DAC_RetrieveOutputData\n
  1135. * DOR2 DACC2DOR LL_DAC_RetrieveOutputData
  1136. * @param DACx DAC instance
  1137. * @param DAC_Channel This parameter can be one of the following values:
  1138. * @arg @ref LL_DAC_CHANNEL_1
  1139. * @arg @ref LL_DAC_CHANNEL_2 (1)
  1140. *
  1141. * (1) On this STM32 serie, parameter not available on all devices.
  1142. * Refer to device datasheet for channels availability.
  1143. * @retval Value between Min_Data=0x000 and Max_Data=0xFFF
  1144. */
  1145. __STATIC_INLINE uint32_t LL_DAC_RetrieveOutputData(DAC_TypeDef *DACx, uint32_t DAC_Channel)
  1146. {
  1147. register __IO uint32_t *preg = __DAC_PTR_REG_OFFSET(DACx->DOR1, __DAC_MASK_SHIFT(DAC_Channel, DAC_REG_DORX_REGOFFSET_MASK));
  1148. return (uint16_t) READ_BIT(*preg, DAC_DOR1_DACC1DOR);
  1149. }
  1150. /**
  1151. * @}
  1152. */
  1153. /** @defgroup DAC_LL_EF_FLAG_Management FLAG Management
  1154. * @{
  1155. */
  1156. /**
  1157. * @brief Get DAC underrun flag for DAC channel 1
  1158. * @rmtoll SR DMAUDR1 LL_DAC_IsActiveFlag_DMAUDR1
  1159. * @param DACx DAC instance
  1160. * @retval State of bit (1 or 0).
  1161. */
  1162. __STATIC_INLINE uint32_t LL_DAC_IsActiveFlag_DMAUDR1(DAC_TypeDef *DACx)
  1163. {
  1164. return (READ_BIT(DACx->SR, LL_DAC_FLAG_DMAUDR1) == (LL_DAC_FLAG_DMAUDR1));
  1165. }
  1166. #if defined(DAC_CHANNEL2_SUPPORT)
  1167. /**
  1168. * @brief Get DAC underrun flag for DAC channel 2
  1169. * @rmtoll SR DMAUDR2 LL_DAC_IsActiveFlag_DMAUDR2
  1170. * @param DACx DAC instance
  1171. * @retval State of bit (1 or 0).
  1172. */
  1173. __STATIC_INLINE uint32_t LL_DAC_IsActiveFlag_DMAUDR2(DAC_TypeDef *DACx)
  1174. {
  1175. return (READ_BIT(DACx->SR, LL_DAC_FLAG_DMAUDR2) == (LL_DAC_FLAG_DMAUDR2));
  1176. }
  1177. #endif /* DAC_CHANNEL2_SUPPORT */
  1178. /**
  1179. * @brief Clear DAC underrun flag for DAC channel 1
  1180. * @rmtoll SR DMAUDR1 LL_DAC_ClearFlag_DMAUDR1
  1181. * @param DACx DAC instance
  1182. * @retval None
  1183. */
  1184. __STATIC_INLINE void LL_DAC_ClearFlag_DMAUDR1(DAC_TypeDef *DACx)
  1185. {
  1186. WRITE_REG(DACx->SR, LL_DAC_FLAG_DMAUDR1);
  1187. }
  1188. #if defined(DAC_CHANNEL2_SUPPORT)
  1189. /**
  1190. * @brief Clear DAC underrun flag for DAC channel 2
  1191. * @rmtoll SR DMAUDR2 LL_DAC_ClearFlag_DMAUDR2
  1192. * @param DACx DAC instance
  1193. * @retval None
  1194. */
  1195. __STATIC_INLINE void LL_DAC_ClearFlag_DMAUDR2(DAC_TypeDef *DACx)
  1196. {
  1197. WRITE_REG(DACx->SR, LL_DAC_FLAG_DMAUDR2);
  1198. }
  1199. #endif /* DAC_CHANNEL2_SUPPORT */
  1200. /**
  1201. * @}
  1202. */
  1203. /** @defgroup DAC_LL_EF_IT_Management IT management
  1204. * @{
  1205. */
  1206. /**
  1207. * @brief Enable DMA underrun interrupt for DAC channel 1
  1208. * @rmtoll CR DMAUDRIE1 LL_DAC_EnableIT_DMAUDR1
  1209. * @param DACx DAC instance
  1210. * @retval None
  1211. */
  1212. __STATIC_INLINE void LL_DAC_EnableIT_DMAUDR1(DAC_TypeDef *DACx)
  1213. {
  1214. SET_BIT(DACx->CR, LL_DAC_IT_DMAUDRIE1);
  1215. }
  1216. #if defined(DAC_CHANNEL2_SUPPORT)
  1217. /**
  1218. * @brief Enable DMA underrun interrupt for DAC channel 2
  1219. * @rmtoll CR DMAUDRIE2 LL_DAC_EnableIT_DMAUDR2
  1220. * @param DACx DAC instance
  1221. * @retval None
  1222. */
  1223. __STATIC_INLINE void LL_DAC_EnableIT_DMAUDR2(DAC_TypeDef *DACx)
  1224. {
  1225. SET_BIT(DACx->CR, LL_DAC_IT_DMAUDRIE2);
  1226. }
  1227. #endif /* DAC_CHANNEL2_SUPPORT */
  1228. /**
  1229. * @brief Disable DMA underrun interrupt for DAC channel 1
  1230. * @rmtoll CR DMAUDRIE1 LL_DAC_DisableIT_DMAUDR1
  1231. * @param DACx DAC instance
  1232. * @retval None
  1233. */
  1234. __STATIC_INLINE void LL_DAC_DisableIT_DMAUDR1(DAC_TypeDef *DACx)
  1235. {
  1236. CLEAR_BIT(DACx->CR, LL_DAC_IT_DMAUDRIE1);
  1237. }
  1238. #if defined(DAC_CHANNEL2_SUPPORT)
  1239. /**
  1240. * @brief Disable DMA underrun interrupt for DAC channel 2
  1241. * @rmtoll CR DMAUDRIE2 LL_DAC_DisableIT_DMAUDR2
  1242. * @param DACx DAC instance
  1243. * @retval None
  1244. */
  1245. __STATIC_INLINE void LL_DAC_DisableIT_DMAUDR2(DAC_TypeDef *DACx)
  1246. {
  1247. CLEAR_BIT(DACx->CR, LL_DAC_IT_DMAUDRIE2);
  1248. }
  1249. #endif /* DAC_CHANNEL2_SUPPORT */
  1250. /**
  1251. * @brief Get DMA underrun interrupt for DAC channel 1
  1252. * @rmtoll CR DMAUDRIE1 LL_DAC_IsEnabledIT_DMAUDR1
  1253. * @param DACx DAC instance
  1254. * @retval State of bit (1 or 0).
  1255. */
  1256. __STATIC_INLINE uint32_t LL_DAC_IsEnabledIT_DMAUDR1(DAC_TypeDef *DACx)
  1257. {
  1258. return (READ_BIT(DACx->CR, LL_DAC_IT_DMAUDRIE1) == (LL_DAC_IT_DMAUDRIE1));
  1259. }
  1260. #if defined(DAC_CHANNEL2_SUPPORT)
  1261. /**
  1262. * @brief Get DMA underrun interrupt for DAC channel 2
  1263. * @rmtoll CR DMAUDRIE2 LL_DAC_IsEnabledIT_DMAUDR2
  1264. * @param DACx DAC instance
  1265. * @retval State of bit (1 or 0).
  1266. */
  1267. __STATIC_INLINE uint32_t LL_DAC_IsEnabledIT_DMAUDR2(DAC_TypeDef *DACx)
  1268. {
  1269. return (READ_BIT(DACx->CR, LL_DAC_IT_DMAUDRIE2) == (LL_DAC_IT_DMAUDRIE2));
  1270. }
  1271. #endif /* DAC_CHANNEL2_SUPPORT */
  1272. /**
  1273. * @}
  1274. */
  1275. #if defined(USE_FULL_LL_DRIVER)
  1276. /** @defgroup DAC_LL_EF_Init Initialization and de-initialization functions
  1277. * @{
  1278. */
  1279. ErrorStatus LL_DAC_DeInit(DAC_TypeDef* DACx);
  1280. ErrorStatus LL_DAC_Init(DAC_TypeDef* DACx, uint32_t DAC_Channel, LL_DAC_InitTypeDef* DAC_InitStruct);
  1281. void LL_DAC_StructInit(LL_DAC_InitTypeDef* DAC_InitStruct);
  1282. /**
  1283. * @}
  1284. */
  1285. #endif /* USE_FULL_LL_DRIVER */
  1286. /**
  1287. * @}
  1288. */
  1289. /**
  1290. * @}
  1291. */
  1292. #endif /* DAC */
  1293. /**
  1294. * @}
  1295. */
  1296. #ifdef __cplusplus
  1297. }
  1298. #endif
  1299. #endif /* __STM32F4xx_LL_DAC_H */
  1300. /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/