324 lines
14 KiB
C
324 lines
14 KiB
C
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/**
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******************************************************************************
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* @file stm32l4xx_ll_dac.c
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* @author MCD Application Team
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* @brief DAC LL module driver
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******************************************************************************
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* @attention
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*
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* Copyright (c) 2017 STMicroelectronics.
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* All rights reserved.
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*
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* This software is licensed under terms that can be found in the LICENSE file
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* in the root directory of this software component.
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* If no LICENSE file comes with this software, it is provided AS-IS.
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*
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******************************************************************************
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*/
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#if defined(USE_FULL_LL_DRIVER)
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/* Includes ------------------------------------------------------------------*/
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#include "stm32l4xx_ll_dac.h"
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#include "stm32l4xx_ll_bus.h"
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#ifdef USE_FULL_ASSERT
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#include "stm32_assert.h"
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#else
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#define assert_param(expr) ((void)0U)
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#endif
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/** @addtogroup STM32L4xx_LL_Driver
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* @{
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*/
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#if defined (DAC1)
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/** @addtogroup DAC_LL DAC
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* @{
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*/
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/* Private types -------------------------------------------------------------*/
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/* Private variables ---------------------------------------------------------*/
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/* Private constants ---------------------------------------------------------*/
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/* Private macros ------------------------------------------------------------*/
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/** @addtogroup DAC_LL_Private_Macros
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* @{
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*/
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#if defined(DAC_CHANNEL2_SUPPORT)
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#define IS_LL_DAC_CHANNEL(__DAC_CHANNEL__) \
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( \
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((__DAC_CHANNEL__) == LL_DAC_CHANNEL_1) \
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|| ((__DAC_CHANNEL__) == LL_DAC_CHANNEL_2) \
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)
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#else
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#define IS_LL_DAC_CHANNEL(__DAC_CHANNEL__) \
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( \
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((__DAC_CHANNEL__) == LL_DAC_CHANNEL_1) \
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)
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#endif /* DAC_CHANNEL2_SUPPORT */
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#if defined (DAC_CR_TSEL1_3)
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#define IS_LL_DAC_TRIGGER_SOURCE(__TRIGGER_SOURCE__) \
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( ((__TRIGGER_SOURCE__) == LL_DAC_TRIG_EXT_TIM1_TRGO) \
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|| ((__TRIGGER_SOURCE__) == LL_DAC_TRIG_EXT_TIM2_TRGO) \
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|| ((__TRIGGER_SOURCE__) == LL_DAC_TRIG_EXT_TIM4_TRGO) \
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|| ((__TRIGGER_SOURCE__) == LL_DAC_TRIG_EXT_TIM5_TRGO) \
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|| ((__TRIGGER_SOURCE__) == LL_DAC_TRIG_EXT_TIM6_TRGO) \
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|| ((__TRIGGER_SOURCE__) == LL_DAC_TRIG_EXT_TIM7_TRGO) \
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|| ((__TRIGGER_SOURCE__) == LL_DAC_TRIG_EXT_TIM8_TRGO) \
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|| ((__TRIGGER_SOURCE__) == LL_DAC_TRIG_EXT_TIM15_TRGO) \
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|| ((__TRIGGER_SOURCE__) == LL_DAC_TRIG_EXT_LPTIM1_OUT) \
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|| ((__TRIGGER_SOURCE__) == LL_DAC_TRIG_EXT_LPTIM2_OUT) \
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|| ((__TRIGGER_SOURCE__) == LL_DAC_TRIG_EXT_EXTI_LINE9) \
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|| ((__TRIGGER_SOURCE__) == LL_DAC_TRIG_SOFTWARE) \
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)
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#else
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#define IS_LL_DAC_TRIGGER_SOURCE(__TRIGGER_SOURCE__) \
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( ((__TRIGGER_SOURCE__) == LL_DAC_TRIG_SOFTWARE) \
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|| ((__TRIGGER_SOURCE__) == LL_DAC_TRIG_EXT_TIM2_TRGO) \
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|| ((__TRIGGER_SOURCE__) == LL_DAC_TRIG_EXT_TIM4_TRGO) \
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|| ((__TRIGGER_SOURCE__) == LL_DAC_TRIG_EXT_TIM5_TRGO) \
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|| ((__TRIGGER_SOURCE__) == LL_DAC_TRIG_EXT_TIM6_TRGO) \
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|| ((__TRIGGER_SOURCE__) == LL_DAC_TRIG_EXT_TIM7_TRGO) \
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|| ((__TRIGGER_SOURCE__) == LL_DAC_TRIG_EXT_TIM8_TRGO) \
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|| ((__TRIGGER_SOURCE__) == LL_DAC_TRIG_EXT_EXTI_LINE9) \
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)
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#endif /* DAC_CR_TSEL1_3 */
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#define IS_LL_DAC_WAVE_AUTO_GENER_MODE(__WAVE_AUTO_GENERATION_MODE__) \
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( ((__WAVE_AUTO_GENERATION_MODE__) == LL_DAC_WAVE_AUTO_GENERATION_NONE) \
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|| ((__WAVE_AUTO_GENERATION_MODE__) == LL_DAC_WAVE_AUTO_GENERATION_NOISE) \
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|| ((__WAVE_AUTO_GENERATION_MODE__) == LL_DAC_WAVE_AUTO_GENERATION_TRIANGLE) \
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)
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#define IS_LL_DAC_WAVE_AUTO_GENER_CONFIG(__WAVE_AUTO_GENERATION_MODE__, __WAVE_AUTO_GENERATION_CONFIG__) \
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( (((__WAVE_AUTO_GENERATION_MODE__) == LL_DAC_WAVE_AUTO_GENERATION_NOISE) \
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&& ( ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_NOISE_LFSR_UNMASK_BIT0) \
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|| ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_NOISE_LFSR_UNMASK_BITS1_0) \
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|| ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_NOISE_LFSR_UNMASK_BITS2_0) \
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|| ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_NOISE_LFSR_UNMASK_BITS3_0) \
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|| ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_NOISE_LFSR_UNMASK_BITS4_0) \
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|| ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_NOISE_LFSR_UNMASK_BITS5_0) \
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|| ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_NOISE_LFSR_UNMASK_BITS6_0) \
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|| ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_NOISE_LFSR_UNMASK_BITS7_0) \
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|| ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_NOISE_LFSR_UNMASK_BITS8_0) \
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|| ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_NOISE_LFSR_UNMASK_BITS9_0) \
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|| ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_NOISE_LFSR_UNMASK_BITS10_0) \
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|| ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_NOISE_LFSR_UNMASK_BITS11_0)) \
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) \
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||(((__WAVE_AUTO_GENERATION_MODE__) == LL_DAC_WAVE_AUTO_GENERATION_TRIANGLE) \
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&& ( ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_TRIANGLE_AMPLITUDE_1) \
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|| ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_TRIANGLE_AMPLITUDE_3) \
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|| ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_TRIANGLE_AMPLITUDE_7) \
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|| ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_TRIANGLE_AMPLITUDE_15) \
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|| ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_TRIANGLE_AMPLITUDE_31) \
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|| ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_TRIANGLE_AMPLITUDE_63) \
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|| ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_TRIANGLE_AMPLITUDE_127) \
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|| ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_TRIANGLE_AMPLITUDE_255) \
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|| ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_TRIANGLE_AMPLITUDE_511) \
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|| ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_TRIANGLE_AMPLITUDE_1023) \
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|| ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_TRIANGLE_AMPLITUDE_2047) \
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|| ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_TRIANGLE_AMPLITUDE_4095)) \
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) \
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)
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#define IS_LL_DAC_OUTPUT_BUFFER(__OUTPUT_BUFFER__) \
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( ((__OUTPUT_BUFFER__) == LL_DAC_OUTPUT_BUFFER_ENABLE) \
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|| ((__OUTPUT_BUFFER__) == LL_DAC_OUTPUT_BUFFER_DISABLE) \
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)
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#define IS_LL_DAC_OUTPUT_CONNECTION(__OUTPUT_CONNECTION__) \
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( ((__OUTPUT_CONNECTION__) == LL_DAC_OUTPUT_CONNECT_GPIO) \
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|| ((__OUTPUT_CONNECTION__) == LL_DAC_OUTPUT_CONNECT_INTERNAL) \
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)
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#define IS_LL_DAC_OUTPUT_MODE(__OUTPUT_MODE__) \
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( ((__OUTPUT_MODE__) == LL_DAC_OUTPUT_MODE_NORMAL) \
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|| ((__OUTPUT_MODE__) == LL_DAC_OUTPUT_MODE_SAMPLE_AND_HOLD) \
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)
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/**
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* @}
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*/
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/* Private function prototypes -----------------------------------------------*/
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/* Exported functions --------------------------------------------------------*/
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/** @addtogroup DAC_LL_Exported_Functions
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* @{
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*/
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/** @addtogroup DAC_LL_EF_Init
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* @{
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*/
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/**
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* @brief De-initialize registers of the selected DAC instance
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* to their default reset values.
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* @param DACx DAC instance
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* @retval An ErrorStatus enumeration value:
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* - SUCCESS: DAC registers are de-initialized
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* - ERROR: not applicable
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*/
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ErrorStatus LL_DAC_DeInit(DAC_TypeDef *DACx)
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{
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/* Prevent unused argument(s) compilation warning */
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(void)(DACx);
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/* Check the parameters */
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assert_param(IS_DAC_ALL_INSTANCE(DACx));
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/* Force reset of DAC clock */
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LL_APB1_GRP1_ForceReset(LL_APB1_GRP1_PERIPH_DAC1);
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/* Release reset of DAC clock */
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LL_APB1_GRP1_ReleaseReset(LL_APB1_GRP1_PERIPH_DAC1);
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return SUCCESS;
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}
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/**
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* @brief Initialize some features of DAC channel.
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* @note @ref LL_DAC_Init() aims to ease basic configuration of a DAC channel.
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* Leaving it ready to be enabled and output:
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* a level by calling one of
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* @ref LL_DAC_ConvertData12RightAligned
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* @ref LL_DAC_ConvertData12LeftAligned
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* @ref LL_DAC_ConvertData8RightAligned
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* or one of the supported autogenerated wave.
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* @note This function allows configuration of:
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* - Output mode
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* - Trigger
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* - Wave generation
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* @note The setting of these parameters by function @ref LL_DAC_Init()
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* is conditioned to DAC state:
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* DAC channel must be disabled.
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* @param DACx DAC instance
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* @param DAC_Channel This parameter can be one of the following values:
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* @arg @ref LL_DAC_CHANNEL_1
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* @arg @ref LL_DAC_CHANNEL_2 (1)
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*
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* (1) On this STM32 series, parameter not available on all devices.
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* Refer to device datasheet for channels availability.
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* @param DAC_InitStruct Pointer to a @ref LL_DAC_InitTypeDef structure
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* @retval An ErrorStatus enumeration value:
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* - SUCCESS: DAC registers are initialized
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* - ERROR: DAC registers are not initialized
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*/
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ErrorStatus LL_DAC_Init(DAC_TypeDef *DACx, uint32_t DAC_Channel, LL_DAC_InitTypeDef *DAC_InitStruct)
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{
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ErrorStatus status = SUCCESS;
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/* Check the parameters */
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assert_param(IS_DAC_ALL_INSTANCE(DACx));
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assert_param(IS_LL_DAC_CHANNEL(DAC_Channel));
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assert_param(IS_LL_DAC_TRIGGER_SOURCE(DAC_InitStruct->TriggerSource));
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assert_param(IS_LL_DAC_OUTPUT_BUFFER(DAC_InitStruct->OutputBuffer));
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assert_param(IS_LL_DAC_OUTPUT_CONNECTION(DAC_InitStruct->OutputConnection));
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assert_param(IS_LL_DAC_OUTPUT_MODE(DAC_InitStruct->OutputMode));
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assert_param(IS_LL_DAC_WAVE_AUTO_GENER_MODE(DAC_InitStruct->WaveAutoGeneration));
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if (DAC_InitStruct->WaveAutoGeneration != LL_DAC_WAVE_AUTO_GENERATION_NONE)
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{
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assert_param(IS_LL_DAC_WAVE_AUTO_GENER_CONFIG(DAC_InitStruct->WaveAutoGeneration,
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DAC_InitStruct->WaveAutoGenerationConfig));
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}
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/* Note: Hardware constraint (refer to description of this function) */
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/* DAC instance must be disabled. */
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if (LL_DAC_IsEnabled(DACx, DAC_Channel) == 0U)
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{
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/* Configuration of DAC channel: */
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/* - TriggerSource */
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/* - WaveAutoGeneration */
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/* - OutputBuffer */
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/* - OutputConnection */
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/* - OutputMode */
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if (DAC_InitStruct->WaveAutoGeneration != LL_DAC_WAVE_AUTO_GENERATION_NONE)
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{
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MODIFY_REG(DACx->CR,
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(DAC_CR_TSEL1
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| DAC_CR_WAVE1
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| DAC_CR_MAMP1
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) << (DAC_Channel & DAC_CR_CHX_BITOFFSET_MASK)
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,
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(DAC_InitStruct->TriggerSource
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| DAC_InitStruct->WaveAutoGeneration
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| DAC_InitStruct->WaveAutoGenerationConfig
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) << (DAC_Channel & DAC_CR_CHX_BITOFFSET_MASK)
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);
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}
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else
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{
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MODIFY_REG(DACx->CR,
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(DAC_CR_TSEL1
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| DAC_CR_WAVE1
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) << (DAC_Channel & DAC_CR_CHX_BITOFFSET_MASK)
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,
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(DAC_InitStruct->TriggerSource
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| LL_DAC_WAVE_AUTO_GENERATION_NONE
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) << (DAC_Channel & DAC_CR_CHX_BITOFFSET_MASK)
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);
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}
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MODIFY_REG(DACx->MCR,
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(DAC_MCR_MODE1_1
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| DAC_MCR_MODE1_0
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| DAC_MCR_MODE1_2
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) << (DAC_Channel & DAC_CR_CHX_BITOFFSET_MASK)
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,
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(DAC_InitStruct->OutputBuffer
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| DAC_InitStruct->OutputConnection
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| DAC_InitStruct->OutputMode
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) << (DAC_Channel & DAC_CR_CHX_BITOFFSET_MASK)
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);
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}
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else
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{
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/* Initialization error: DAC instance is not disabled. */
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status = ERROR;
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}
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return status;
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}
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/**
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* @brief Set each @ref LL_DAC_InitTypeDef field to default value.
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* @param DAC_InitStruct pointer to a @ref LL_DAC_InitTypeDef structure
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* whose fields will be set to default values.
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* @retval None
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*/
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void LL_DAC_StructInit(LL_DAC_InitTypeDef *DAC_InitStruct)
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{
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/* Set DAC_InitStruct fields to default values */
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DAC_InitStruct->TriggerSource = LL_DAC_TRIG_SOFTWARE;
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DAC_InitStruct->WaveAutoGeneration = LL_DAC_WAVE_AUTO_GENERATION_NONE;
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/* Note: Parameter discarded if wave auto generation is disabled, */
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/* set anyway to its default value. */
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DAC_InitStruct->WaveAutoGenerationConfig = LL_DAC_NOISE_LFSR_UNMASK_BIT0;
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DAC_InitStruct->OutputBuffer = LL_DAC_OUTPUT_BUFFER_ENABLE;
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DAC_InitStruct->OutputConnection = LL_DAC_OUTPUT_CONNECT_GPIO;
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DAC_InitStruct->OutputMode = LL_DAC_OUTPUT_MODE_NORMAL;
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}
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/**
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* @}
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*/
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/**
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* @}
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*/
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/**
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* @}
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*/
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#endif /* DAC1 */
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/**
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* @}
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*/
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#endif /* USE_FULL_LL_DRIVER */
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