/**
******************************************************************************
* @file stm32l1xx_ll_dac.h
* @author MCD Application Team
* @brief Header file of DAC LL module.
******************************************************************************
* @attention
*
* <h2><center>© Copyright (c) 2016 STMicroelectronics.
* All rights reserved.</center></h2>
*
* This software component is licensed by ST under BSD 3-Clause license,
* the "License"; You may not use this file except in compliance with the
* License. You may obtain a copy of the License at:
* opensource.org/licenses/BSD-3-Clause
*
******************************************************************************
*/
/* Define to prevent recursive inclusion -------------------------------------*/
#ifndef STM32L1xx_LL_DAC_H
#define STM32L1xx_LL_DAC_H
#ifdef __cplusplus
extern "C" {
#endif
/* Includes ------------------------------------------------------------------*/
#include "stm32l1xx.h"
/** @addtogroup STM32L1xx_LL_Driver
* @{
*/
#if defined(DAC1)
/** @defgroup DAC_LL DAC
* @{
*/
/* Private types -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
/* Private constants ---------------------------------------------------------*/
/** @defgroup DAC_LL_Private_Constants DAC Private Constants
* @{
*/
/* Internal masks for DAC channels definition */
/* To select into literal LL_DAC_CHANNEL_x the relevant bits for: */
/* - channel bits position into registers CR, MCR, CCR, SHHR, SHRR */
/* - channel bits position into register SWTRIG */
/* - channel register offset of data holding register DHRx */
/* - channel register offset of data output register DORx */
#define DAC_CR_CH1_BITOFFSET 0U /* Position of channel bits into registers CR, MCR, CCR, SHHR, SHRR of channel 1 */
#define DAC_CR_CH2_BITOFFSET 16U /* Position of channel bits into registers CR, MCR, CCR, SHHR, SHRR of channel 2 */
#define DAC_CR_CHX_BITOFFSET_MASK (DAC_CR_CH1_BITOFFSET | DAC_CR_CH2_BITOFFSET)
#define DAC_SWTR_CH1 (DAC_SWTRIGR_SWTRIG1) /* Channel bit into register SWTRIGR of channel 1. */
#define DAC_SWTR_CH2 (DAC_SWTRIGR_SWTRIG2) /* Channel bit into register SWTRIGR of channel 2. */
#define DAC_SWTR_CHX_MASK (DAC_SWTR_CH1 | DAC_SWTR_CH2)
#define DAC_REG_DHR12R1_REGOFFSET 0x00000000U /* Register DHR12Rx channel 1 taken as reference */
#define DAC_REG_DHR12L1_REGOFFSET 0x00100000U /* Register offset of DHR12Lx channel 1 versus DHR12Rx channel 1 (shifted left of 20 bits) */
#define DAC_REG_DHR8R1_REGOFFSET 0x02000000U /* Register offset of DHR8Rx channel 1 versus DHR12Rx channel 1 (shifted left of 24 bits) */
#define DAC_REG_DHR12R2_REGOFFSET 0x00030000U /* Register offset of DHR12Rx channel 2 versus DHR12Rx channel 1 (shifted left of 16 bits) */
#define DAC_REG_DHR12L2_REGOFFSET 0x00400000U /* Register offset of DHR12Lx channel 2 versus DHR12Rx channel 1 (shifted left of 20 bits) */
#define DAC_REG_DHR8R2_REGOFFSET 0x05000000U /* Register offset of DHR8Rx channel 2 versus DHR12Rx channel 1 (shifted left of 24 bits) */
#define DAC_REG_DHR12RX_REGOFFSET_MASK 0x000F0000U
#define DAC_REG_DHR12LX_REGOFFSET_MASK 0x00F00000U
#define DAC_REG_DHR8RX_REGOFFSET_MASK 0x0F000000U
#define DAC_REG_DHRX_REGOFFSET_MASK (DAC_REG_DHR12RX_REGOFFSET_MASK | DAC_REG_DHR12LX_REGOFFSET_MASK | DAC_REG_DHR8RX_REGOFFSET_MASK)
#define DAC_REG_DOR1_REGOFFSET 0x00000000U /* Register DORx channel 1 taken as reference */
#define DAC_REG_DOR2_REGOFFSET 0x10000000U /* Register offset of DORx channel 1 versus DORx channel 2 (shifted left of 28 bits) */
#define DAC_REG_DORX_REGOFFSET_MASK (DAC_REG_DOR1_REGOFFSET | DAC_REG_DOR2_REGOFFSET)
#define DAC_REG_DHR_REGOFFSET_MASK_POSBIT0 0x0000000FU /* Mask of data hold registers offset (DHR12Rx, DHR12Lx, DHR8Rx, ...) when shifted to position 0 */
#define DAC_REG_DORX_REGOFFSET_MASK_POSBIT0 0x00000001U /* Mask of DORx registers offset when shifted to position 0 */
#define DAC_REG_SHSRX_REGOFFSET_MASK_POSBIT0 0x00000001U /* Mask of SHSRx registers offset when shifted to position 0 */
#define DAC_REG_DHR12RX_REGOFFSET_BITOFFSET_POS 16U /* Position of bits register offset of DHR12Rx channel 1 or 2 versus DHR12Rx channel 1 (shifted left of 16 bits) */
#define DAC_REG_DHR12LX_REGOFFSET_BITOFFSET_POS 20U /* Position of bits register offset of DHR12Lx channel 1 or 2 versus DHR12Rx channel 1 (shifted left of 20 bits) */
#define DAC_REG_DHR8RX_REGOFFSET_BITOFFSET_POS 24U /* Position of bits register offset of DHR8Rx channel 1 or 2 versus DHR12Rx channel 1 (shifted left of 24 bits) */
#define DAC_REG_DORX_REGOFFSET_BITOFFSET_POS 28U /* Position of bits register offset of DORx channel 1 or 2 versus DORx channel 1 (shifted left of 28 bits) */
/* DAC registers bits positions */
#define DAC_DHR12RD_DACC2DHR_BITOFFSET_POS DAC_DHR12RD_DACC2DHR_Pos
#define DAC_DHR12LD_DACC2DHR_BITOFFSET_POS DAC_DHR12LD_DACC2DHR_Pos
#define DAC_DHR8RD_DACC2DHR_BITOFFSET_POS DAC_DHR8RD_DACC2DHR_Pos
/* Miscellaneous data */
#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) */
/**
* @}
*/
/* Private macros ------------------------------------------------------------*/
/** @defgroup DAC_LL_Private_Macros DAC Private Macros
* @{
*/
/**
* @brief Driver macro reserved for internal use: set a pointer to
* a register from a register basis from which an offset
* is applied.
* @param __REG__ Register basis from which the offset is applied.
* @param __REG_OFFFSET__ Offset to be applied (unit: number of registers).
* @retval Pointer to register address
*/
#define __DAC_PTR_REG_OFFSET(__REG__, __REG_OFFFSET__) \
((uint32_t *)((uint32_t) ((uint32_t)(&(__REG__)) + ((__REG_OFFFSET__) << 2U))))
/**
* @}
*/
/* Exported types ------------------------------------------------------------*/
#if defined(USE_FULL_LL_DRIVER)
/** @defgroup DAC_LL_ES_INIT DAC Exported Init structure
* @{
*/
/**
* @brief Structure definition of some features of DAC instance.
*/
typedef struct
{
uint32_t TriggerSource; /*!< Set the conversion trigger source for the selected DAC channel: internal (SW start) or from external peripheral (timer event, external interrupt line).
This parameter can be a value of @ref DAC_LL_EC_TRIGGER_SOURCE
This feature can be modified afterwards using unitary function @ref LL_DAC_SetTriggerSource(). */
uint32_t WaveAutoGeneration; /*!< Set the waveform automatic generation mode for the selected DAC channel.
This parameter can be a value of @ref DAC_LL_EC_WAVE_AUTO_GENERATION_MODE
This feature can be modified afterwards using unitary function @ref LL_DAC_SetWaveAutoGeneration(). */
uint32_t WaveAutoGenerationConfig; /*!< Set the waveform automatic generation mode for the selected DAC channel.
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
If waveform automatic generation mode is set to triangle, this parameter can be a value of @ref DAC_LL_EC_WAVE_TRIANGLE_AMPLITUDE
@note If waveform automatic generation mode is disabled, this parameter is discarded.
This feature can be modified afterwards using unitary function @ref LL_DAC_SetWaveNoiseLFSR(), @ref LL_DAC_SetWaveTriangleAmplitude()
depending on the wave automatic generation selected. */
uint32_t OutputBuffer; /*!< Set the output buffer for the selected DAC channel.
This parameter can be a value of @ref DAC_LL_EC_OUTPUT_BUFFER
This feature can be modified afterwards using unitary function @ref LL_DAC_SetOutputBuffer(). */
} LL_DAC_InitTypeDef;
/**
* @}
*/
#endif /* USE_FULL_LL_DRIVER */
/* Exported constants --------------------------------------------------------*/
/** @defgroup DAC_LL_Exported_Constants DAC Exported Constants
* @{
*/
/** @defgroup DAC_LL_EC_GET_FLAG DAC flags
* @brief Flags defines which can be used with LL_DAC_ReadReg function
* @{
*/
/* DAC channel 1 flags */
#define LL_DAC_FLAG_DMAUDR1 (DAC_SR_DMAUDR1) /*!< DAC channel 1 flag DMA underrun */
/* DAC channel 2 flags */
#define LL_DAC_FLAG_DMAUDR2 (DAC_SR_DMAUDR2) /*!< DAC channel 2 flag DMA underrun */
/**
* @}
*/
/** @defgroup DAC_LL_EC_IT DAC interruptions
* @brief IT defines which can be used with LL_DAC_ReadReg and LL_DAC_WriteReg functions
* @{
*/
#define LL_DAC_IT_DMAUDRIE1 (DAC_CR_DMAUDRIE1) /*!< DAC channel 1 interruption DMA underrun */
#define LL_DAC_IT_DMAUDRIE2 (DAC_CR_DMAUDRIE2) /*!< DAC channel 2 interruption DMA underrun */
/**
* @}
*/
/** @defgroup DAC_LL_EC_CHANNEL DAC channels
* @{
*/
#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 */
#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 */
/**
* @}
*/
/** @defgroup DAC_LL_EC_TRIGGER_SOURCE DAC trigger source
* @{
*/
#define LL_DAC_TRIG_SOFTWARE (DAC_CR_TSEL1_2 | DAC_CR_TSEL1_1 | DAC_CR_TSEL1_0) /*!< DAC channel conversion trigger internal (SW start) */
#define LL_DAC_TRIG_EXT_TIM2_TRGO (DAC_CR_TSEL1_2 ) /*!< DAC channel conversion trigger from external peripheral: TIM2 TRGO. */
#define LL_DAC_TRIG_EXT_TIM4_TRGO (DAC_CR_TSEL1_2 | DAC_CR_TSEL1_0) /*!< DAC channel conversion trigger from external peripheral: TIM4 TRGO. */
#define LL_DAC_TRIG_EXT_TIM6_TRGO 0x00000000U /*!< DAC channel conversion trigger from external peripheral: TIM6 TRGO. */
#define LL_DAC_TRIG_EXT_TIM7_TRGO ( DAC_CR_TSEL1_1 ) /*!< DAC channel conversion trigger from external peripheral: TIM7 TRGO. */
#define LL_DAC_TRIG_EXT_TIM9_TRGO ( DAC_CR_TSEL1_1 | DAC_CR_TSEL1_0) /*!< DAC channel conversion trigger from external peripheral: TIM15 TRGO. */
#define LL_DAC_TRIG_EXT_EXTI_LINE9 (DAC_CR_TSEL1_2 | DAC_CR_TSEL1_1 ) /*!< DAC channel conversion trigger from external peripheral: external interrupt line 9. */
/**
* @}
*/
/** @defgroup DAC_LL_EC_WAVE_AUTO_GENERATION_MODE DAC waveform automatic generation mode
* @{
*/
#define LL_DAC_WAVE_AUTO_GENERATION_NONE 0x00000000U /*!< DAC channel wave auto generation mode disabled. */
#define LL_DAC_WAVE_AUTO_GENERATION_NOISE ( DAC_CR_WAVE1_0) /*!< DAC channel wave auto generation mode enabled, set generated noise waveform. */
#define LL_DAC_WAVE_AUTO_GENERATION_TRIANGLE (DAC_CR_WAVE1_1 ) /*!< DAC channel wave auto generation mode enabled, set generated triangle waveform. */
/**
* @}
*/
/** @defgroup DAC_LL_EC_WAVE_NOISE_LFSR_UNMASK_BITS DAC wave generation - Noise LFSR unmask bits
* @{
*/
#define LL_DAC_NOISE_LFSR_UNMASK_BIT0 0x00000000U /*!< Noise wave generation, unmask LFSR bit0, for the selected DAC channel */
#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 */
#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 */
#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 */
#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 */
#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 */
#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 */
#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 */
#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 */
#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 */
#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 */
#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 */
/**
* @}
*/
/** @defgroup DAC_LL_EC_WAVE_TRIANGLE_AMPLITUDE DAC wave generation - Triangle amplitude
* @{
*/
#define LL_DAC_TRIANGLE_AMPLITUDE_1 0x00000000U /*!< Triangle wave generation, amplitude of 1 LSB of DAC output range, for the selected DAC channel */
#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 */
#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 */
#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 */
#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 */
#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 */
#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 */
#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 */
#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 */
#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 */
#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 */
#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 */
/**
* @}
*/
/** @defgroup DAC_LL_EC_OUTPUT_BUFFER DAC channel output buffer
* @{
*/
#define LL_DAC_OUTPUT_BUFFER_ENABLE 0x00000000U /*!< The selected DAC channel output is buffered: higher drive current capability, but also higher current consumption */
#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 */
/**
* @}
*/
/** @defgroup DAC_LL_EC_RESOLUTION DAC channel output resolution
* @{
*/
#define LL_DAC_RESOLUTION_12B 0x00000000U /*!< DAC channel resolution 12 bits */
#define LL_DAC_RESOLUTION_8B 0x00000002U /*!< DAC channel resolution 8 bits */
/**
* @}
*/
/** @defgroup DAC_LL_EC_REGISTERS DAC registers compliant with specific purpose
* @{
*/
/* List of DAC registers intended to be used (most commonly) with */
/* DMA transfer. */
/* Refer to function @ref LL_DAC_DMA_GetRegAddr(). */
#define LL_DAC_DMA_REG_DATA_12BITS_RIGHT_ALIGNED DAC_REG_DHR12RX_REGOFFSET_BITOFFSET_POS /*!< DAC channel data holding register 12 bits right aligned */
#define LL_DAC_DMA_REG_DATA_12BITS_LEFT_ALIGNED DAC_REG_DHR12LX_REGOFFSET_BITOFFSET_POS /*!< DAC channel data holding register 12 bits left aligned */
#define LL_DAC_DMA_REG_DATA_8BITS_RIGHT_ALIGNED DAC_REG_DHR8RX_REGOFFSET_BITOFFSET_POS /*!< DAC channel data holding register 8 bits right aligned */
/**
* @}
*/
/** @defgroup DAC_LL_EC_HW_DELAYS Definitions of DAC hardware constraints delays
* @note Only DAC peripheral HW delays are defined in DAC LL driver driver,
* not timeout values.
* For details on delays values, refer to descriptions in source code
* above each literal definition.
* @{
*/
/* Delay for DAC channel voltage settling time from DAC channel startup */
/* (transition from disable to enable). */
/* Note: DAC channel startup time depends on board application environment: */
/* impedance connected to DAC channel output. */
/* The delay below is specified under conditions: */
/* - voltage maximum transition (lowest to highest value) */
/* - until voltage reaches final value +-1LSB */
/* - DAC channel output buffer enabled */
/* - load impedance of 5kOhm (min), 50pF (max) */
/* Literal set to maximum value (refer to device datasheet, */
/* parameter "tWAKEUP"). */
/* Unit: us */
#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) */
/* Delay for DAC channel voltage settling time. */
/* Note: DAC channel startup time depends on board application environment: */
/* impedance connected to DAC channel output. */
/* The delay below is specified under conditions: */
/* - voltage maximum transition (lowest to highest value) */
/* - until voltage reaches final value +-1LSB */
/* - DAC channel output buffer enabled */
/* - load impedance of 5kOhm min, 50pF max */
/* Literal set to maximum value (refer to device datasheet, */
/* parameter "tSETTLING"). */
/* Unit: us */
#define LL_DAC_DELAY_VOLTAGE_SETTLING_US 12U /*!< Delay for DAC channel voltage settling time */
/**
* @}
*/
/**
* @}
*/
/* Exported macro ------------------------------------------------------------*/
/** @defgroup DAC_LL_Exported_Macros DAC Exported Macros
* @{
*/
/** @defgroup DAC_LL_EM_WRITE_READ Common write and read registers macros
* @{
*/
/**
* @brief Write a value in DAC register
* @param __INSTANCE__ DAC Instance
* @param __REG__ Register to be written
* @param __VALUE__ Value to be written in the register
* @retval None
*/
#define LL_DAC_WriteReg(__INSTANCE__, __REG__, __VALUE__) WRITE_REG(__INSTANCE__->__REG__, (__VALUE__))
/**
* @brief Read a value in DAC register
* @param __INSTANCE__ DAC Instance
* @param __REG__ Register to be read
* @retval Register value
*/
#define LL_DAC_ReadReg(__INSTANCE__, __REG__) READ_REG(__INSTANCE__->__REG__)
/**
* @}
*/
/** @defgroup DAC_LL_EM_HELPER_MACRO DAC helper macro
* @{
*/
/**
* @brief Helper macro to get DAC channel number in decimal format
* from literals LL_DAC_CHANNEL_x.
* Example:
* __LL_DAC_CHANNEL_TO_DECIMAL_NB(LL_DAC_CHANNEL_1)
* will return decimal number "1".
* @note The input can be a value from functions where a channel
* number is returned.
* @param __CHANNEL__ This parameter can be one of the following values:
* @arg @ref LL_DAC_CHANNEL_1
* @arg @ref LL_DAC_CHANNEL_2
* @retval 1...2
*/
#define __LL_DAC_CHANNEL_TO_DECIMAL_NB(__CHANNEL__) \
((__CHANNEL__) & DAC_SWTR_CHX_MASK)
/**
* @brief Helper macro to get DAC channel in literal format LL_DAC_CHANNEL_x
* from number in decimal format.
* Example:
* __LL_DAC_DECIMAL_NB_TO_CHANNEL(1)
* will return a data equivalent to "LL_DAC_CHANNEL_1".
* @note If the input parameter does not correspond to a DAC channel,
* this macro returns value '0'.
* @param __DECIMAL_NB__ 1...2
* @retval Returned value can be one of the following values:
* @arg @ref LL_DAC_CHANNEL_1
* @arg @ref LL_DAC_CHANNEL_2
*/
#define __LL_DAC_DECIMAL_NB_TO_CHANNEL(__DECIMAL_NB__) \
(((__DECIMAL_NB__) == 1U) \
? ( \
LL_DAC_CHANNEL_1 \
) \
: \
(((__DECIMAL_NB__) == 2U) \
? ( \
LL_DAC_CHANNEL_2 \
) \
: \
( \
0U \
) \
) \
)
/**
* @brief Helper macro to define the DAC conversion data full-scale digital
* value corresponding to the selected DAC resolution.
* @note DAC conversion data full-scale corresponds to voltage range
* determined by analog voltage references Vref+ and Vref-
* (refer to reference manual).
* @param __DAC_RESOLUTION__ This parameter can be one of the following values:
* @arg @ref LL_DAC_RESOLUTION_12B
* @arg @ref LL_DAC_RESOLUTION_8B
* @retval ADC conversion data equivalent voltage value (unit: mVolt)
*/
#define __LL_DAC_DIGITAL_SCALE(__DAC_RESOLUTION__) \
((0x00000FFFU) >> ((__DAC_RESOLUTION__) << 1U))
/**
* @brief Helper macro to calculate the DAC conversion data (unit: digital
* value) corresponding to a voltage (unit: mVolt).
* @note This helper macro is intended to provide input data in voltage
* rather than digital value,
* to be used with LL DAC functions such as
* @ref LL_DAC_ConvertData12RightAligned().
* @note Analog reference voltage (Vref+) must be either known from
* user board environment or can be calculated using ADC measurement
* and ADC helper macro @ref __LL_ADC_CALC_VREFANALOG_VOLTAGE().
* @param __VREFANALOG_VOLTAGE__ Analog reference voltage (unit: mV)
* @param __DAC_VOLTAGE__ Voltage to be generated by DAC channel
* (unit: mVolt).
* @param __DAC_RESOLUTION__ This parameter can be one of the following values:
* @arg @ref LL_DAC_RESOLUTION_12B
* @arg @ref LL_DAC_RESOLUTION_8B
* @retval DAC conversion data (unit: digital value)
*/
#define __LL_DAC_CALC_VOLTAGE_TO_DATA(__VREFANALOG_VOLTAGE__,\
__DAC_VOLTAGE__,\
__DAC_RESOLUTION__) \
((__DAC_VOLTAGE__) * __LL_DAC_DIGITAL_SCALE(__DAC_RESOLUTION__) \
/ (__VREFANALOG_VOLTAGE__) \
)
/**
* @}
*/
/**
* @}
*/
/* Exported functions --------------------------------------------------------*/
/** @defgroup DAC_LL_Exported_Functions DAC Exported Functions
* @{
*/
/**
* @brief Set the conversion trigger source for the selected DAC channel.
* @note For conversion trigger source to be effective, DAC trigger
* must be enabled using function @ref LL_DAC_EnableTrigger().
* @note To set conversion trigger source, DAC channel must be disabled.
* Otherwise, the setting is discarded.
* @note Availability of parameters of trigger sources from timer
* depends on timers availability on the selected device.
* @rmtoll CR TSEL1 LL_DAC_SetTriggerSource\n
* CR TSEL2 LL_DAC_SetTriggerSource
* @param DACx DAC instance
* @param DAC_Channel This parameter can be one of the following values:
* @arg @ref LL_DAC_CHANNEL_1
* @arg @ref LL_DAC_CHANNEL_2
* @param TriggerSource This parameter can be one of the following values:
* @arg @ref LL_DAC_TRIG_SOFTWARE
* @arg @ref LL_DAC_TRIG_EXT_TIM2_TRGO
* @arg @ref LL_DAC_TRIG_EXT_TIM4_TRGO
* @arg @ref LL_DAC_TRIG_EXT_TIM6_TRGO
* @arg @ref LL_DAC_TRIG_EXT_TIM7_TRGO
* @arg @ref LL_DAC_TRIG_EXT_TIM9_TRGO
* @arg @ref LL_DAC_TRIG_EXT_EXTI_LINE9
* @retval None
*/
__STATIC_INLINE void LL_DAC_SetTriggerSource(DAC_TypeDef *DACx, uint32_t DAC_Channel, uint32_t TriggerSource)
{
MODIFY_REG(DACx->CR,
DAC_CR_TSEL1 << (DAC_Channel & DAC_CR_CHX_BITOFFSET_MASK),
TriggerSource << (DAC_Channel & DAC_CR_CHX_BITOFFSET_MASK));
}
/**
* @brief Get the conversion trigger source for the selected DAC channel.
* @note For conversion trigger source to be effective, DAC trigger
* must be enabled using function @ref LL_DAC_EnableTrigger().
* @note Availability of parameters of trigger sources from timer
* depends on timers availability on the selected device.
* @rmtoll CR TSEL1 LL_DAC_GetTriggerSource\n
* CR TSEL2 LL_DAC_GetTriggerSource
* @param DACx DAC instance
* @param DAC_Channel This parameter can be one of the following values:
* @arg @ref LL_DAC_CHANNEL_1
* @arg @ref LL_DAC_CHANNEL_2
* @retval Returned value can be one of the following values:
* @arg @ref LL_DAC_TRIG_SOFTWARE
* @arg @ref LL_DAC_TRIG_EXT_TIM2_TRGO
* @arg @ref LL_DAC_TRIG_EXT_TIM4_TRGO
* @arg @ref LL_DAC_TRIG_EXT_TIM6_TRGO
* @arg @ref LL_DAC_TRIG_EXT_TIM7_TRGO
* @arg @ref LL_DAC_TRIG_EXT_TIM9_TRGO
* @arg @ref LL_DAC_TRIG_EXT_EXTI_LINE9
*/
__STATIC_INLINE uint32_t LL_DAC_GetTriggerSource(DAC_TypeDef *DACx, uint32_t DAC_Channel)
{
return (uint32_t)(READ_BIT(DACx->CR, DAC_CR_TSEL1 << (DAC_Channel & DAC_CR_CHX_BITOFFSET_MASK))
>> (DAC_Channel & DAC_CR_CHX_BITOFFSET_MASK)
);
}
/**
* @brief Set the waveform automatic generation mode
* for the selected DAC channel.
* @rmtoll CR WAVE1 LL_DAC_SetWaveAutoGeneration\n
* CR WAVE2 LL_DAC_SetWaveAutoGeneration
* @param DACx DAC instance
* @param DAC_Channel This parameter can be one of the following values:
* @arg @ref LL_DAC_CHANNEL_1
* @arg @ref LL_DAC_CHANNEL_2
* @param WaveAutoGeneration This parameter can be one of the following values:
* @arg @ref LL_DAC_WAVE_AUTO_GENERATION_NONE
* @arg @ref LL_DAC_WAVE_AUTO_GENERATION_NOISE
* @arg @ref LL_DAC_WAVE_AUTO_GENERATION_TRIANGLE
* @retval None
*/
__STATIC_INLINE void LL_DAC_SetWaveAutoGeneration(DAC_TypeDef *DACx, uint32_t DAC_Channel, uint32_t WaveAutoGeneration)
{
MODIFY_REG(DACx->CR,
DAC_CR_WAVE1 << (DAC_Channel & DAC_CR_CHX_BITOFFSET_MASK),
WaveAutoGeneration << (DAC_Channel & DAC_CR_CHX_BITOFFSET_MASK));
}
/**
* @brief Get the waveform automatic generation mode
* for the selected DAC channel.
* @rmtoll CR WAVE1 LL_DAC_GetWaveAutoGeneration\n
* CR WAVE2 LL_DAC_GetWaveAutoGeneration
* @param DACx DAC instance
* @param DAC_Channel This parameter can be one of the following values:
* @arg @ref LL_DAC_CHANNEL_1
* @arg @ref LL_DAC_CHANNEL_2
* @retval Returned value can be one of the following values:
* @arg @ref LL_DAC_WAVE_AUTO_GENERATION_NONE
* @arg @ref LL_DAC_WAVE_AUTO_GENERATION_NOISE
* @arg @ref LL_DAC_WAVE_AUTO_GENERATION_TRIANGLE
*/
__STATIC_INLINE uint32_t LL_DAC_GetWaveAutoGeneration(DAC_TypeDef *DACx, uint32_t DAC_Channel)
{
return (uint32_t)(READ_BIT(DACx->CR, DAC_CR_WAVE1 << (DAC_Channel & DAC_CR_CHX_BITOFFSET_MASK))
>> (DAC_Channel & DAC_CR_CHX_BITOFFSET_MASK)
);
}
/**
* @brief Set the noise waveform generation for the selected DAC channel:
* Noise mode and parameters LFSR (linear feedback shift register).
* @note For wave generation to be effective, DAC channel
* wave generation mode must be enabled using
* function @ref LL_DAC_SetWaveAutoGeneration().
* @note This setting can be set when the selected DAC channel is disabled
* (otherwise, the setting operation is ignored).
* @rmtoll CR MAMP1 LL_DAC_SetWaveNoiseLFSR\n
* CR MAMP2 LL_DAC_SetWaveNoiseLFSR
* @param DACx DAC instance
* @param DAC_Channel This parameter can be one of the following values:
* @arg @ref LL_DAC_CHANNEL_1
* @arg @ref LL_DAC_CHANNEL_2
* @param NoiseLFSRMask This parameter can be one of the following values:
* @arg @ref LL_DAC_NOISE_LFSR_UNMASK_BIT0
* @arg @ref LL_DAC_NOISE_LFSR_UNMASK_BITS1_0
* @arg @ref LL_DAC_NOISE_LFSR_UNMASK_BITS2_0
* @arg @ref LL_DAC_NOISE_LFSR_UNMASK_BITS3_0
* @arg @ref LL_DAC_NOISE_LFSR_UNMASK_BITS4_0
* @arg @ref LL_DAC_NOISE_LFSR_UNMASK_BITS5_0
* @arg @ref LL_DAC_NOISE_LFSR_UNMASK_BITS6_0
* @arg @ref LL_DAC_NOISE_LFSR_UNMASK_BITS7_0
* @arg @ref LL_DAC_NOISE_LFSR_UNMASK_BITS8_0
* @arg @ref LL_DAC_NOISE_LFSR_UNMASK_BITS9_0
* @arg @ref LL_DAC_NOISE_LFSR_UNMASK_BITS10_0
* @arg @ref LL_DAC_NOISE_LFSR_UNMASK_BITS11_0
* @retval None
*/
__STATIC_INLINE void LL_DAC_SetWaveNoiseLFSR(DAC_TypeDef *DACx, uint32_t DAC_Channel, uint32_t NoiseLFSRMask)
{
MODIFY_REG(DACx->CR,
DAC_CR_MAMP1 << (DAC_Channel & DAC_CR_CHX_BITOFFSET_MASK),
NoiseLFSRMask << (DAC_Channel & DAC_CR_CHX_BITOFFSET_MASK));
}
/**
* @brief Get the noise waveform generation for the selected DAC channel:
* Noise mode and parameters LFSR (linear feedback shift register).
* @rmtoll CR MAMP1 LL_DAC_GetWaveNoiseLFSR\n
* CR MAMP2 LL_DAC_GetWaveNoiseLFSR
* @param DACx DAC instance
* @param DAC_Channel This parameter can be one of the following values:
* @arg @ref LL_DAC_CHANNEL_1
* @arg @ref LL_DAC_CHANNEL_2
* @retval Returned value can be one of the following values:
* @arg @ref LL_DAC_NOISE_LFSR_UNMASK_BIT0
* @arg @ref LL_DAC_NOISE_LFSR_UNMASK_BITS1_0
* @arg @ref LL_DAC_NOISE_LFSR_UNMASK_BITS2_0
* @arg @ref LL_DAC_NOISE_LFSR_UNMASK_BITS3_0
* @arg @ref LL_DAC_NOISE_LFSR_UNMASK_BITS4_0
* @arg @ref LL_DAC_NOISE_LFSR_UNMASK_BITS5_0
* @arg @ref LL_DAC_NOISE_LFSR_UNMASK_BITS6_0
* @arg @ref LL_DAC_NOISE_LFSR_UNMASK_BITS7_0
* @arg @ref LL_DAC_NOISE_LFSR_UNMASK_BITS8_0
* @arg @ref LL_DAC_NOISE_LFSR_UNMASK_BITS9_0
* @arg @ref LL_DAC_NOISE_LFSR_UNMASK_BITS10_0
* @arg @ref LL_DAC_NOISE_LFSR_UNMASK_BITS11_0
*/
__STATIC_INLINE uint32_t LL_DAC_GetWaveNoiseLFSR(DAC_TypeDef *DACx, uint32_t DAC_Channel)
{
return (uint32_t)(READ_BIT(DACx->CR, DAC_CR_MAMP1 << (DAC_Channel & DAC_CR_CHX_BITOFFSET_MASK))
>> (DAC_Channel & DAC_CR_CHX_BITOFFSET_MASK)
);
}
/**
* @brief Set the triangle waveform generation for the selected DAC channel:
* triangle mode and amplitude.
* @note For wave generation to be effective, DAC channel
* wave generation mode must be enabled using
* function @ref LL_DAC_SetWaveAutoGeneration().
* @note This setting can be set when the selected DAC channel is disabled
* (otherwise, the setting operation is ignored).
* @rmtoll CR MAMP1 LL_DAC_SetWaveTriangleAmplitude\n
* CR MAMP2 LL_DAC_SetWaveTriangleAmplitude
* @param DACx DAC instance
* @param DAC_Channel This parameter can be one of the following values:
* @arg @ref LL_DAC_CHANNEL_1
* @arg @ref LL_DAC_CHANNEL_2
* @param TriangleAmplitude This parameter can be one of the following values:
* @arg @ref LL_DAC_TRIANGLE_AMPLITUDE_1
* @arg @ref LL_DAC_TRIANGLE_AMPLITUDE_3
* @arg @ref LL_DAC_TRIANGLE_AMPLITUDE_7
* @arg @ref LL_DAC_TRIANGLE_AMPLITUDE_15
* @arg @ref LL_DAC_TRIANGLE_AMPLITUDE_31
* @arg @ref LL_DAC_TRIANGLE_AMPLITUDE_63
* @arg @ref LL_DAC_TRIANGLE_AMPLITUDE_127
* @arg @ref LL_DAC_TRIANGLE_AMPLITUDE_255
* @arg @ref LL_DAC_TRIANGLE_AMPLITUDE_511
* @arg @ref LL_DAC_TRIANGLE_AMPLITUDE_1023
* @arg @ref LL_DAC_TRIANGLE_AMPLITUDE_2047
* @arg @ref LL_DAC_TRIANGLE_AMPLITUDE_4095
* @retval None
*/
__STATIC_INLINE void LL_DAC_SetWaveTriangleAmplitude(DAC_TypeDef *DACx, uint32_t DAC_Channel,
uint32_t TriangleAmplitude)
{
MODIFY_REG(DACx->CR,
DAC_CR_MAMP1 << (DAC_Channel & DAC_CR_CHX_BITOFFSET_MASK),
TriangleAmplitude << (DAC_Channel & DAC_CR_CHX_BITOFFSET_MASK));
}
/**
* @brief Get the triangle waveform generation for the selected DAC channel:
* triangle mode and amplitude.
* @rmtoll CR MAMP1 LL_DAC_GetWaveTriangleAmplitude\n
* CR MAMP2 LL_DAC_GetWaveTriangleAmplitude
* @param DACx DAC instance
* @param DAC_Channel This parameter can be one of the following values:
* @arg @ref LL_DAC_CHANNEL_1
* @arg @ref LL_DAC_CHANNEL_2
* @retval Returned value can be one of the following values:
* @arg @ref LL_DAC_TRIANGLE_AMPLITUDE_1
* @arg @ref LL_DAC_TRIANGLE_AMPLITUDE_3
* @arg @ref LL_DAC_TRIANGLE_AMPLITUDE_7
* @arg @ref LL_DAC_TRIANGLE_AMPLITUDE_15
* @arg @ref LL_DAC_TRIANGLE_AMPLITUDE_31
* @arg @ref LL_DAC_TRIANGLE_AMPLITUDE_63
* @arg @ref LL_DAC_TRIANGLE_AMPLITUDE_127
* @arg @ref LL_DAC_TRIANGLE_AMPLITUDE_255
* @arg @ref LL_DAC_TRIANGLE_AMPLITUDE_511
* @arg @ref LL_DAC_TRIANGLE_AMPLITUDE_1023
* @arg @ref LL_DAC_TRIANGLE_AMPLITUDE_2047
* @arg @ref LL_DAC_TRIANGLE_AMPLITUDE_4095
*/
__STATIC_INLINE uint32_t LL_DAC_GetWaveTriangleAmplitude(DAC_TypeDef *DACx, uint32_t DAC_Channel)
{
return (uint32_t)(READ_BIT(DACx->CR, DAC_CR_MAMP1 << (DAC_Channel & DAC_CR_CHX_BITOFFSET_MASK))
>> (DAC_Channel & DAC_CR_CHX_BITOFFSET_MASK)
);
}
/**
* @brief Set the output buffer for the selected DAC channel.
* @rmtoll CR BOFF1 LL_DAC_SetOutputBuffer\n
* CR BOFF2 LL_DAC_SetOutputBuffer
* @param DACx DAC instance
* @param DAC_Channel This parameter can be one of the following values:
* @arg @ref LL_DAC_CHANNEL_1
* @arg @ref LL_DAC_CHANNEL_2
* @param OutputBuffer This parameter can be one of the following values:
* @arg @ref LL_DAC_OUTPUT_BUFFER_ENABLE
* @arg @ref LL_DAC_OUTPUT_BUFFER_DISABLE
* @retval None
*/
__STATIC_INLINE void LL_DAC_SetOutputBuffer(DAC_TypeDef *DACx, uint32_t DAC_Channel, uint32_t OutputBuffer)
{
MODIFY_REG(DACx->CR,
DAC_CR_BOFF1 << (DAC_Channel & DAC_CR_CHX_BITOFFSET_MASK),
OutputBuffer << (DAC_Channel & DAC_CR_CHX_BITOFFSET_MASK));
}
/**
* @brief Get the output buffer state for the selected DAC channel.
* @rmtoll CR BOFF1 LL_DAC_GetOutputBuffer\n
* CR BOFF2 LL_DAC_GetOutputBuffer
* @param DACx DAC instance
* @param DAC_Channel This parameter can be one of the following values:
* @arg @ref LL_DAC_CHANNEL_1
* @arg @ref LL_DAC_CHANNEL_2
* @retval Returned value can be one of the following values:
* @arg @ref LL_DAC_OUTPUT_BUFFER_ENABLE
* @arg @ref LL_DAC_OUTPUT_BUFFER_DISABLE
*/
__STATIC_INLINE uint32_t LL_DAC_GetOutputBuffer(DAC_TypeDef *DACx, uint32_t DAC_Channel)
{
return (uint32_t)(READ_BIT(DACx->CR, DAC_CR_BOFF1 << (DAC_Channel & DAC_CR_CHX_BITOFFSET_MASK))
>> (DAC_Channel & DAC_CR_CHX_BITOFFSET_MASK)
);
}
/**
* @}
*/
/** @defgroup DAC_LL_EF_DMA_Management DMA Management
* @{
*/
/**
* @brief Enable DAC DMA transfer request of the selected channel.
* @note To configure DMA source address (peripheral address),
* use function @ref LL_DAC_DMA_GetRegAddr().
* @rmtoll CR DMAEN1 LL_DAC_EnableDMAReq\n
* CR DMAEN2 LL_DAC_EnableDMAReq
* @param DACx DAC instance
* @param DAC_Channel This parameter can be one of the following values:
* @arg @ref LL_DAC_CHANNEL_1
* @arg @ref LL_DAC_CHANNEL_2
* @retval None
*/
__STATIC_INLINE void LL_DAC_EnableDMAReq(DAC_TypeDef *DACx, uint32_t DAC_Channel)
{
SET_BIT(DACx->CR,
DAC_CR_DMAEN1 << (DAC_Channel & DAC_CR_CHX_BITOFFSET_MASK));
}
/**
* @brief Disable DAC DMA transfer request of the selected channel.
* @note To configure DMA source address (peripheral address),
* use function @ref LL_DAC_DMA_GetRegAddr().
* @rmtoll CR DMAEN1 LL_DAC_DisableDMAReq\n
* CR DMAEN2 LL_DAC_DisableDMAReq
* @param DACx DAC instance
* @param DAC_Channel This parameter can be one of the following values:
* @arg @ref LL_DAC_CHANNEL_1
* @arg @ref LL_DAC_CHANNEL_2
* @retval None
*/
__STATIC_INLINE void LL_DAC_DisableDMAReq(DAC_TypeDef *DACx, uint32_t DAC_Channel)
{
CLEAR_BIT(DACx->CR,
DAC_CR_DMAEN1 << (DAC_Channel & DAC_CR_CHX_BITOFFSET_MASK));
}
/**
* @brief Get DAC DMA transfer request state of the selected channel.
* (0: DAC DMA transfer request is disabled, 1: DAC DMA transfer request is enabled)
* @rmtoll CR DMAEN1 LL_DAC_IsDMAReqEnabled\n
* CR DMAEN2 LL_DAC_IsDMAReqEnabled
* @param DACx DAC instance
* @param DAC_Channel This parameter can be one of the following values:
* @arg @ref LL_DAC_CHANNEL_1
* @arg @ref LL_DAC_CHANNEL_2
* @retval State of bit (1 or 0).
*/
__STATIC_INLINE uint32_t LL_DAC_IsDMAReqEnabled(DAC_TypeDef *DACx, uint32_t DAC_Channel)
{
return ((READ_BIT(DACx->CR,
DAC_CR_DMAEN1 << (DAC_Channel & DAC_CR_CHX_BITOFFSET_MASK))
== (DAC_CR_DMAEN1 << (DAC_Channel & DAC_CR_CHX_BITOFFSET_MASK))) ? 1UL : 0UL);
}
/**
* @brief Function to help to configure DMA transfer to DAC: retrieve the
* DAC register address from DAC instance and a list of DAC registers
* intended to be used (most commonly) with DMA transfer.
* @note These DAC registers are data holding registers:
* when DAC conversion is requested, DAC generates a DMA transfer
* request to have data available in DAC data holding registers.
* @note This macro is intended to be used with LL DMA driver, refer to
* function "LL_DMA_ConfigAddresses()".
* Example:
* LL_DMA_ConfigAddresses(DMA1,
* LL_DMA_CHANNEL_1,
* (uint32_t)&< array or variable >,
* LL_DAC_DMA_GetRegAddr(DAC1, LL_DAC_CHANNEL_1, LL_DAC_DMA_REG_DATA_12BITS_RIGHT_ALIGNED),
* LL_DMA_DIRECTION_MEMORY_TO_PERIPH);
* @rmtoll DHR12R1 DACC1DHR LL_DAC_DMA_GetRegAddr\n
* DHR12L1 DACC1DHR LL_DAC_DMA_GetRegAddr\n
* DHR8R1 DACC1DHR LL_DAC_DMA_GetRegAddr\n
* DHR12R2 DACC2DHR LL_DAC_DMA_GetRegAddr\n
* DHR12L2 DACC2DHR LL_DAC_DMA_GetRegAddr\n
* DHR8R2 DACC2DHR LL_DAC_DMA_GetRegAddr
* @param DACx DAC instance
* @param DAC_Channel This parameter can be one of the following values:
* @arg @ref LL_DAC_CHANNEL_1
* @arg @ref LL_DAC_CHANNEL_2
* @param Register This parameter can be one of the following values:
* @arg @ref LL_DAC_DMA_REG_DATA_12BITS_RIGHT_ALIGNED
* @arg @ref LL_DAC_DMA_REG_DATA_12BITS_LEFT_ALIGNED
* @arg @ref LL_DAC_DMA_REG_DATA_8BITS_RIGHT_ALIGNED
* @retval DAC register address
*/
__STATIC_INLINE uint32_t LL_DAC_DMA_GetRegAddr(DAC_TypeDef *DACx, uint32_t DAC_Channel, uint32_t Register)
{
/* Retrieve address of register DHR12Rx, DHR12Lx or DHR8Rx depending on */
/* DAC channel selected. */
return ((uint32_t)(__DAC_PTR_REG_OFFSET((DACx)->DHR12R1,
((DAC_Channel >> (Register & 0x1FUL)) & DAC_REG_DHR_REGOFFSET_MASK_POSBIT0))));
}
/**
* @}
*/
/** @defgroup DAC_LL_EF_Operation Operation on DAC channels
* @{
*/
/**
* @brief Enable DAC selected channel.
* @rmtoll CR EN1 LL_DAC_Enable\n
* CR EN2 LL_DAC_Enable
* @note After enable from off state, DAC channel requires a delay
* for output voltage to reach accuracy +/- 1 LSB.
* Refer to device datasheet, parameter "tWAKEUP".
* @param DACx DAC instance
* @param DAC_Channel This parameter can be one of the following values:
* @arg @ref LL_DAC_CHANNEL_1
* @arg @ref LL_DAC_CHANNEL_2
* @retval None
*/
__STATIC_INLINE void LL_DAC_Enable(DAC_TypeDef *DACx, uint32_t DAC_Channel)
{
SET_BIT(DACx->CR,
DAC_CR_EN1 << (DAC_Channel & DAC_CR_CHX_BITOFFSET_MASK));
}
/**
* @brief Disable DAC selected channel.
* @rmtoll CR EN1 LL_DAC_Disable\n
* CR EN2 LL_DAC_Disable
* @param DACx DAC instance
* @param DAC_Channel This parameter can be one of the following values:
* @arg @ref LL_DAC_CHANNEL_1
* @arg @ref LL_DAC_CHANNEL_2
* @retval None
*/
__STATIC_INLINE void LL_DAC_Disable(DAC_TypeDef *DACx, uint32_t DAC_Channel)
{
CLEAR_BIT(DACx->CR,
DAC_CR_EN1 << (DAC_Channel & DAC_CR_CHX_BITOFFSET_MASK));
}
/**
* @brief Get DAC enable state of the selected channel.
* (0: DAC channel is disabled, 1: DAC channel is enabled)
* @rmtoll CR EN1 LL_DAC_IsEnabled\n
* CR EN2 LL_DAC_IsEnabled
* @param DACx DAC instance
* @param DAC_Channel This parameter can be one of the following values:
* @arg @ref LL_DAC_CHANNEL_1
* @arg @ref LL_DAC_CHANNEL_2
* @retval State of bit (1 or 0).
*/
__STATIC_INLINE uint32_t LL_DAC_IsEnabled(DAC_TypeDef *DACx, uint32_t DAC_Channel)
{
return ((READ_BIT(DACx->CR,
DAC_CR_EN1 << (DAC_Channel & DAC_CR_CHX_BITOFFSET_MASK))
== (DAC_CR_EN1 << (DAC_Channel & DAC_CR_CHX_BITOFFSET_MASK))) ? 1UL : 0UL);
}
/**
* @brief Enable DAC trigger of the selected channel.
* @note - If DAC trigger is disabled, DAC conversion is performed
* automatically once the data holding register is updated,
* using functions "LL_DAC_ConvertData{8; 12}{Right; Left} Aligned()":
* @ref LL_DAC_ConvertData12RightAligned(), ...
* - If DAC trigger is enabled, DAC conversion is performed
* only when a hardware of software trigger event is occurring.
* Select trigger source using
* function @ref LL_DAC_SetTriggerSource().
* @rmtoll CR TEN1 LL_DAC_EnableTrigger\n
* CR TEN2 LL_DAC_EnableTrigger
* @param DACx DAC instance
* @param DAC_Channel This parameter can be one of the following values:
* @arg @ref LL_DAC_CHANNEL_1
* @arg @ref LL_DAC_CHANNEL_2
* @retval None
*/
__STATIC_INLINE void LL_DAC_EnableTrigger(DAC_TypeDef *DACx, uint32_t DAC_Channel)
{
SET_BIT(DACx->CR,
DAC_CR_TEN1 << (DAC_Channel & DAC_CR_CHX_BITOFFSET_MASK));
}
/**
* @brief Disable DAC trigger of the selected channel.
* @rmtoll CR TEN1 LL_DAC_DisableTrigger\n
* CR TEN2 LL_DAC_DisableTrigger
* @param DACx DAC instance
* @param DAC_Channel This parameter can be one of the following values:
* @arg @ref LL_DAC_CHANNEL_1
* @arg @ref LL_DAC_CHANNEL_2
* @retval None
*/
__STATIC_INLINE void LL_DAC_DisableTrigger(DAC_TypeDef *DACx, uint32_t DAC_Channel)
{
CLEAR_BIT(DACx->CR,
DAC_CR_TEN1 << (DAC_Channel & DAC_CR_CHX_BITOFFSET_MASK));
}
/**
* @brief Get DAC trigger state of the selected channel.
* (0: DAC trigger is disabled, 1: DAC trigger is enabled)
* @rmtoll CR TEN1 LL_DAC_IsTriggerEnabled\n
* CR TEN2 LL_DAC_IsTriggerEnabled
* @param DACx DAC instance
* @param DAC_Channel This parameter can be one of the following values:
* @arg @ref LL_DAC_CHANNEL_1
* @arg @ref LL_DAC_CHANNEL_2
* @retval State of bit (1 or 0).
*/
__STATIC_INLINE uint32_t LL_DAC_IsTriggerEnabled(DAC_TypeDef *DACx, uint32_t DAC_Channel)
{
return ((READ_BIT(DACx->CR,
DAC_CR_TEN1 << (DAC_Channel & DAC_CR_CHX_BITOFFSET_MASK))
== (DAC_CR_TEN1 << (DAC_Channel & DAC_CR_CHX_BITOFFSET_MASK))) ? 1UL : 0UL);
}
/**
* @brief Trig DAC conversion by software for the selected DAC channel.
* @note Preliminarily, DAC trigger must be set to software trigger
* using function
* @ref LL_DAC_Init()
* @ref LL_DAC_SetTriggerSource()
* with parameter "LL_DAC_TRIGGER_SOFTWARE".
* and DAC trigger must be enabled using
* function @ref LL_DAC_EnableTrigger().
* @note For devices featuring DAC with 2 channels: this function
* can perform a SW start of both DAC channels simultaneously.
* Two channels can be selected as parameter.
* Example: (LL_DAC_CHANNEL_1 | LL_DAC_CHANNEL_2)
* @rmtoll SWTRIGR SWTRIG1 LL_DAC_TrigSWConversion\n
* SWTRIGR SWTRIG2 LL_DAC_TrigSWConversion
* @param DACx DAC instance
* @param DAC_Channel This parameter can a combination of the following values:
* @arg @ref LL_DAC_CHANNEL_1
* @arg @ref LL_DAC_CHANNEL_2
* @retval None
*/
__STATIC_INLINE void LL_DAC_TrigSWConversion(DAC_TypeDef *DACx, uint32_t DAC_Channel)
{
SET_BIT(DACx->SWTRIGR,
(DAC_Channel & DAC_SWTR_CHX_MASK));
}
/**
* @brief Set the data to be loaded in the data holding register
* in format 12 bits left alignment (LSB aligned on bit 0),
* for the selected DAC channel.
* @rmtoll DHR12R1 DACC1DHR LL_DAC_ConvertData12RightAligned\n
* DHR12R2 DACC2DHR LL_DAC_ConvertData12RightAligned
* @param DACx DAC instance
* @param DAC_Channel This parameter can be one of the following values:
* @arg @ref LL_DAC_CHANNEL_1
* @arg @ref LL_DAC_CHANNEL_2
* @param Data Value between Min_Data=0x000 and Max_Data=0xFFF
* @retval None
*/
__STATIC_INLINE void LL_DAC_ConvertData12RightAligned(DAC_TypeDef *DACx, uint32_t DAC_Channel, uint32_t Data)
{
__IO uint32_t *preg = __DAC_PTR_REG_OFFSET(DACx->DHR12R1, (DAC_Channel >> DAC_REG_DHR12RX_REGOFFSET_BITOFFSET_POS) & DAC_REG_DHR_REGOFFSET_MASK_POSBIT0);
MODIFY_REG(*preg,
DAC_DHR12R1_DACC1DHR,
Data);
}
/**
* @brief Set the data to be loaded in the data holding register
* in format 12 bits left alignment (MSB aligned on bit 15),
* for the selected DAC channel.
* @rmtoll DHR12L1 DACC1DHR LL_DAC_ConvertData12LeftAligned\n
* DHR12L2 DACC2DHR LL_DAC_ConvertData12LeftAligned
* @param DACx DAC instance
* @param DAC_Channel This parameter can be one of the following values:
* @arg @ref LL_DAC_CHANNEL_1
* @arg @ref LL_DAC_CHANNEL_2
* @param Data Value between Min_Data=0x000 and Max_Data=0xFFF
* @retval None
*/
__STATIC_INLINE void LL_DAC_ConvertData12LeftAligned(DAC_TypeDef *DACx, uint32_t DAC_Channel, uint32_t Data)
{
__IO uint32_t *preg = __DAC_PTR_REG_OFFSET(DACx->DHR12R1, (DAC_Channel >> DAC_REG_DHR12LX_REGOFFSET_BITOFFSET_POS) & DAC_REG_DHR_REGOFFSET_MASK_POSBIT0);
MODIFY_REG(*preg,
DAC_DHR12L1_DACC1DHR,
Data);
}
/**
* @brief Set the data to be loaded in the data holding register
* in format 8 bits left alignment (LSB aligned on bit 0),
* for the selected DAC channel.
* @rmtoll DHR8R1 DACC1DHR LL_DAC_ConvertData8RightAligned\n
* DHR8R2 DACC2DHR LL_DAC_ConvertData8RightAligned
* @param DACx DAC instance
* @param DAC_Channel This parameter can be one of the following values:
* @arg @ref LL_DAC_CHANNEL_1
* @arg @ref LL_DAC_CHANNEL_2
* @param Data Value between Min_Data=0x00 and Max_Data=0xFF
* @retval None
*/
__STATIC_INLINE void LL_DAC_ConvertData8RightAligned(DAC_TypeDef *DACx, uint32_t DAC_Channel, uint32_t Data)
{
__IO uint32_t *preg = __DAC_PTR_REG_OFFSET(DACx->DHR12R1, (DAC_Channel >> DAC_REG_DHR8RX_REGOFFSET_BITOFFSET_POS) & DAC_REG_DHR_REGOFFSET_MASK_POSBIT0);
MODIFY_REG(*preg,
DAC_DHR8R1_DACC1DHR,
Data);
}
/**
* @brief Set the data to be loaded in the data holding register
* in format 12 bits left alignment (LSB aligned on bit 0),
* for both DAC channels.
* @rmtoll DHR12RD DACC1DHR LL_DAC_ConvertDualData12RightAligned\n
* DHR12RD DACC2DHR LL_DAC_ConvertDualData12RightAligned
* @param DACx DAC instance
* @param DataChannel1 Value between Min_Data=0x000 and Max_Data=0xFFF
* @param DataChannel2 Value between Min_Data=0x000 and Max_Data=0xFFF
* @retval None
*/
__STATIC_INLINE void LL_DAC_ConvertDualData12RightAligned(DAC_TypeDef *DACx, uint32_t DataChannel1,
uint32_t DataChannel2)
{
MODIFY_REG(DACx->DHR12RD,
(DAC_DHR12RD_DACC2DHR | DAC_DHR12RD_DACC1DHR),
((DataChannel2 << DAC_DHR12RD_DACC2DHR_BITOFFSET_POS) | DataChannel1));
}
/**
* @brief Set the data to be loaded in the data holding register
* in format 12 bits left alignment (MSB aligned on bit 15),
* for both DAC channels.
* @rmtoll DHR12LD DACC1DHR LL_DAC_ConvertDualData12LeftAligned\n
* DHR12LD DACC2DHR LL_DAC_ConvertDualData12LeftAligned
* @param DACx DAC instance
* @param DataChannel1 Value between Min_Data=0x000 and Max_Data=0xFFF
* @param DataChannel2 Value between Min_Data=0x000 and Max_Data=0xFFF
* @retval None
*/
__STATIC_INLINE void LL_DAC_ConvertDualData12LeftAligned(DAC_TypeDef *DACx, uint32_t DataChannel1,
uint32_t DataChannel2)
{
/* Note: Data of DAC channel 2 shift value subtracted of 4 because */
/* data on 16 bits and DAC channel 2 bits field is on the 12 MSB, */
/* the 4 LSB must be taken into account for the shift value. */
MODIFY_REG(DACx->DHR12LD,
(DAC_DHR12LD_DACC2DHR | DAC_DHR12LD_DACC1DHR),
((DataChannel2 << (DAC_DHR12LD_DACC2DHR_BITOFFSET_POS - 4U)) | DataChannel1));
}
/**
* @brief Set the data to be loaded in the data holding register
* in format 8 bits left alignment (LSB aligned on bit 0),
* for both DAC channels.
* @rmtoll DHR8RD DACC1DHR LL_DAC_ConvertDualData8RightAligned\n
* DHR8RD DACC2DHR LL_DAC_ConvertDualData8RightAligned
* @param DACx DAC instance
* @param DataChannel1 Value between Min_Data=0x00 and Max_Data=0xFF
* @param DataChannel2 Value between Min_Data=0x00 and Max_Data=0xFF
* @retval None
*/
__STATIC_INLINE void LL_DAC_ConvertDualData8RightAligned(DAC_TypeDef *DACx, uint32_t DataChannel1,
uint32_t DataChannel2)
{
MODIFY_REG(DACx->DHR8RD,
(DAC_DHR8RD_DACC2DHR | DAC_DHR8RD_DACC1DHR),
((DataChannel2 << DAC_DHR8RD_DACC2DHR_BITOFFSET_POS) | DataChannel1));
}
/**
* @brief Retrieve output data currently generated for the selected DAC channel.
* @note Whatever alignment and resolution settings
* (using functions "LL_DAC_ConvertData{8; 12}{Right; Left} Aligned()":
* @ref LL_DAC_ConvertData12RightAligned(), ...),
* output data format is 12 bits right aligned (LSB aligned on bit 0).
* @rmtoll DOR1 DACC1DOR LL_DAC_RetrieveOutputData\n
* DOR2 DACC2DOR LL_DAC_RetrieveOutputData
* @param DACx DAC instance
* @param DAC_Channel This parameter can be one of the following values:
* @arg @ref LL_DAC_CHANNEL_1
* @arg @ref LL_DAC_CHANNEL_2
* @retval Value between Min_Data=0x000 and Max_Data=0xFFF
*/
__STATIC_INLINE uint32_t LL_DAC_RetrieveOutputData(DAC_TypeDef *DACx, uint32_t DAC_Channel)
{
__IO uint32_t const *preg = __DAC_PTR_REG_OFFSET(DACx->DOR1, (DAC_Channel >> DAC_REG_DORX_REGOFFSET_BITOFFSET_POS) & DAC_REG_DORX_REGOFFSET_MASK_POSBIT0);
return (uint16_t) READ_BIT(*preg, DAC_DOR1_DACC1DOR);
}
/**
* @}
*/
/** @defgroup DAC_LL_EF_FLAG_Management FLAG Management
* @{
*/
/**
* @brief Get DAC underrun flag for DAC channel 1
* @rmtoll SR DMAUDR1 LL_DAC_IsActiveFlag_DMAUDR1
* @param DACx DAC instance
* @retval State of bit (1 or 0).
*/
__STATIC_INLINE uint32_t LL_DAC_IsActiveFlag_DMAUDR1(DAC_TypeDef *DACx)
{
return ((READ_BIT(DACx->SR, LL_DAC_FLAG_DMAUDR1) == (LL_DAC_FLAG_DMAUDR1)) ? 1UL : 0UL);
}
/**
* @brief Get DAC underrun flag for DAC channel 2
* @rmtoll SR DMAUDR2 LL_DAC_IsActiveFlag_DMAUDR2
* @param DACx DAC instance
* @retval State of bit (1 or 0).
*/
__STATIC_INLINE uint32_t LL_DAC_IsActiveFlag_DMAUDR2(DAC_TypeDef *DACx)
{
return ((READ_BIT(DACx->SR, LL_DAC_FLAG_DMAUDR2) == (LL_DAC_FLAG_DMAUDR2)) ? 1UL : 0UL);
}
/**
* @brief Clear DAC underrun flag for DAC channel 1
* @rmtoll SR DMAUDR1 LL_DAC_ClearFlag_DMAUDR1
* @param DACx DAC instance
* @retval None
*/
__STATIC_INLINE void LL_DAC_ClearFlag_DMAUDR1(DAC_TypeDef *DACx)
{
WRITE_REG(DACx->SR, LL_DAC_FLAG_DMAUDR1);
}
/**
* @brief Clear DAC underrun flag for DAC channel 2
* @rmtoll SR DMAUDR2 LL_DAC_ClearFlag_DMAUDR2
* @param DACx DAC instance
* @retval None
*/
__STATIC_INLINE void LL_DAC_ClearFlag_DMAUDR2(DAC_TypeDef *DACx)
{
WRITE_REG(DACx->SR, LL_DAC_FLAG_DMAUDR2);
}
/**
* @}
*/
/** @defgroup DAC_LL_EF_IT_Management IT management
* @{
*/
/**
* @brief Enable DMA underrun interrupt for DAC channel 1
* @rmtoll CR DMAUDRIE1 LL_DAC_EnableIT_DMAUDR1
* @param DACx DAC instance
* @retval None
*/
__STATIC_INLINE void LL_DAC_EnableIT_DMAUDR1(DAC_TypeDef *DACx)
{
SET_BIT(DACx->CR, LL_DAC_IT_DMAUDRIE1);
}
/**
* @brief Enable DMA underrun interrupt for DAC channel 2
* @rmtoll CR DMAUDRIE2 LL_DAC_EnableIT_DMAUDR2
* @param DACx DAC instance
* @retval None
*/
__STATIC_INLINE void LL_DAC_EnableIT_DMAUDR2(DAC_TypeDef *DACx)
{
SET_BIT(DACx->CR, LL_DAC_IT_DMAUDRIE2);
}
/**
* @brief Disable DMA underrun interrupt for DAC channel 1
* @rmtoll CR DMAUDRIE1 LL_DAC_DisableIT_DMAUDR1
* @param DACx DAC instance
* @retval None
*/
__STATIC_INLINE void LL_DAC_DisableIT_DMAUDR1(DAC_TypeDef *DACx)
{
CLEAR_BIT(DACx->CR, LL_DAC_IT_DMAUDRIE1);
}
/**
* @brief Disable DMA underrun interrupt for DAC channel 2
* @rmtoll CR DMAUDRIE2 LL_DAC_DisableIT_DMAUDR2
* @param DACx DAC instance
* @retval None
*/
__STATIC_INLINE void LL_DAC_DisableIT_DMAUDR2(DAC_TypeDef *DACx)
{
CLEAR_BIT(DACx->CR, LL_DAC_IT_DMAUDRIE2);
}
/**
* @brief Get DMA underrun interrupt for DAC channel 1
* @rmtoll CR DMAUDRIE1 LL_DAC_IsEnabledIT_DMAUDR1
* @param DACx DAC instance
* @retval State of bit (1 or 0).
*/
__STATIC_INLINE uint32_t LL_DAC_IsEnabledIT_DMAUDR1(DAC_TypeDef *DACx)
{
return ((READ_BIT(DACx->CR, LL_DAC_IT_DMAUDRIE1) == (LL_DAC_IT_DMAUDRIE1)) ? 1UL : 0UL);
}
/**
* @brief Get DMA underrun interrupt for DAC channel 2
* @rmtoll CR DMAUDRIE2 LL_DAC_IsEnabledIT_DMAUDR2
* @param DACx DAC instance
* @retval State of bit (1 or 0).
*/
__STATIC_INLINE uint32_t LL_DAC_IsEnabledIT_DMAUDR2(DAC_TypeDef *DACx)
{
return ((READ_BIT(DACx->CR, LL_DAC_IT_DMAUDRIE2) == (LL_DAC_IT_DMAUDRIE2)) ? 1UL : 0UL);
}
/**
* @}
*/
#if defined(USE_FULL_LL_DRIVER)
/** @defgroup DAC_LL_EF_Init Initialization and de-initialization functions
* @{
*/
ErrorStatus LL_DAC_DeInit(DAC_TypeDef *DACx);
ErrorStatus LL_DAC_Init(DAC_TypeDef *DACx, uint32_t DAC_Channel, LL_DAC_InitTypeDef *DAC_InitStruct);
void LL_DAC_StructInit(LL_DAC_InitTypeDef *DAC_InitStruct);
/**
* @}
*/
#endif /* USE_FULL_LL_DRIVER */
/**
* @}
*/
/**
* @}
*/
#endif /* DAC1 */
/**
* @}
*/
#ifdef __cplusplus
}
#endif
#endif /* STM32L1xx_LL_DAC_H */
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/