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282 lines
12 KiB
282 lines
12 KiB
/**
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******************************************************************************
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* @file stm32l0xx_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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* <h2><center>© COPYRIGHT(c) 2016 STMicroelectronics</center></h2>
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*
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* Redistribution and use in source and binary forms, with or without modification,
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* are permitted provided that the following conditions are met:
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* 1. Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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* 3. Neither the name of STMicroelectronics nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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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 "stm32l0xx_ll_dac.h"
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#include "stm32l0xx_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 STM32L0xx_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(__DACX__, __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(__DACX__, __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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#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_TIM3_TRGO) \
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|| ((__TRIGGER_SOURCE__) == LL_DAC_TRIG_EXT_TIM3_CH3) \
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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_TIM21_TRGO) \
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|| ((__TRIGGER_SOURCE__) == LL_DAC_TRIG_EXT_EXTI_LINE9) \
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)
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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_CONFIG__) \
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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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|| ((__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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#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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/**
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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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/* 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 instance.
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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 instance 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 serie, 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(DACx, 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_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->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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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_CR_BOFF1
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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_InitStruct->OutputBuffer
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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_CR_BOFF1
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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_InitStruct->OutputBuffer
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) << (DAC_Channel & DAC_CR_CHX_BITOFFSET_MASK)
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);
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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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}
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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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/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
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