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Diffstat (limited to 'Libraries/STM32F0xx_StdPeriph_Driver/src/stm32f0xx_dac.c')
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1 files changed, 0 insertions, 692 deletions
diff --git a/Libraries/STM32F0xx_StdPeriph_Driver/src/stm32f0xx_dac.c b/Libraries/STM32F0xx_StdPeriph_Driver/src/stm32f0xx_dac.c deleted file mode 100644 index e6f34ad..0000000 --- a/Libraries/STM32F0xx_StdPeriph_Driver/src/stm32f0xx_dac.c +++ /dev/null @@ -1,692 +0,0 @@ -/** - ****************************************************************************** - * @file stm32f0xx_dac.c - * @author MCD Application Team - * @version V1.3.0 - * @date 16-January-2014 - * @brief This file provides firmware functions to manage the following - * functionalities of the Digital-to-Analog Converter (DAC) peripheral - * applicable only on STM32F051 and STM32F072 devices: - * + DAC channel configuration: trigger, output buffer, data format - * + DMA management - * + Interrupts and flags management - * - * @verbatim - * - =============================================================================== - ##### DAC Peripheral features ##### - =============================================================================== - [..] The device integrates two 12-bit Digital Analog Converters refered as - DAC channel1 with DAC_OUT1 (PA4) and DAC_OUT2 (PA5) as outputs. - - [..] Digital to Analog conversion can be non-triggered using DAC_Trigger_None - and DAC_OUTx is available once writing to DHRx register using - DAC_SetChannel1Data() or DAC_SetChannel2Data() - - [..] Digital to Analog conversion can be triggered by: - (#) External event: EXTI Line 9 (any GPIOx_Pin9) using DAC_Trigger_Ext_IT9. - The used pin (GPIOx_Pin9) must be configured in input mode. - - (#) Timers TRGO: TIM2, TIM3,TIM7, TIM6 and TIM15 - (DAC_Trigger_T2_TRGO, DAC_Trigger_T3_TRGO...) - The timer TRGO event should be selected using TIM_SelectOutputTrigger() - - (#) Software using DAC_Trigger_Software - - [..] Each DAC integrates an output buffer that can be used to - reduce the output impedance, and to drive external loads directly - without having to add an external operational amplifier. - To enable the output buffer use - DAC_InitStructure.DAC_OutputBuffer = DAC_OutputBuffer_Enable; - - [..] Refer to the device datasheet for more details about output impedance - value with and without output buffer. - - [..] DAC wave generation feature - Both DAC channels can be used to generate - 1- Noise wave using DAC_WaveGeneration_Noise - 2- Triangle wave using DAC_WaveGeneration_Triangle - - [..] The DAC data format can be: - (#) 8-bit right alignment using DAC_Align_8b_R - (#) 12-bit left alignment using DAC_Align_12b_L - (#) 12-bit right alignment using DAC_Align_12b_R - - [..] The analog output voltage on each DAC channel pin is determined - by the following equation: DAC_OUTx = VREF+ * DOR / 4095 - with DOR is the Data Output Register - VEF+ is the input voltage reference (refer to the device datasheet) - e.g. To set DAC_OUT1 to 0.7V, use - DAC_SetChannel1Data(DAC_Align_12b_R, 868); - Assuming that VREF+ = 3.3, DAC_OUT1 = (3.3 * 868) / 4095 = 0.7V - - [..] A DMA1 request can be generated when an external trigger (but not - a software trigger) occurs if DMA1 requests are enabled using - DAC_DMACmd() - DMA1 requests are mapped as following: - (+) DAC channel1 is mapped on DMA1 channel3 which must be already - configured - (+) DAC channel2 is mapped on DMA1 channel4 which must be already - configured - - ##### How to use this driver ##### - =============================================================================== - [..] - (+) Enable DAC APB1 clock to get write access to DAC registers - using RCC_APB1PeriphClockCmd(RCC_APB1Periph_DAC, ENABLE) - - (+) Configure DAC_OUTx (DAC_OUT1: PA4, DAC_OUT2: PA5) in analog mode - using GPIO_Init() function - - (+) Configure the DAC channel using DAC_Init() - - (+) Enable the DAC channel using DAC_Cmd() - - @endverbatim - * - ****************************************************************************** - * @attention - * - * <h2><center>© COPYRIGHT 2014 STMicroelectronics</center></h2> - * - * Licensed under MCD-ST Liberty SW License Agreement V2, (the "License"); - * You may not use this file except in compliance with the License. - * You may obtain a copy of the License at: - * - * http://www.st.com/software_license_agreement_liberty_v2 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - * - ****************************************************************************** - */ - -/* Includes ------------------------------------------------------------------*/ -#include "stm32f0xx_dac.h" - -/** @addtogroup STM32F0xx_StdPeriph_Driver - * @{ - */ - -/** @defgroup DAC - * @brief DAC driver modules - * @{ - */ - -/* Private typedef -----------------------------------------------------------*/ -/* Private define ------------------------------------------------------------*/ -/* CR register Mask */ -#define CR_CLEAR_MASK ((uint32_t)0x00000FFE) /* check the value of the mask */ - -/* DAC Dual Channels SWTRIG masks */ -#define DUAL_SWTRIG_SET ((uint32_t)0x00000003) /*!< Only applicable for STM32F072 devices */ -#define DUAL_SWTRIG_RESET ((uint32_t)0xFFFFFFFC) /*!< Only applicable for STM32F072 devices */ - -/* DHR registers offsets */ -#define DHR12R1_OFFSET ((uint32_t)0x00000008) -#define DHR12R2_OFFSET ((uint32_t)0x00000014) /*!< Only applicable for STM32F072 devices */ -#define DHR12RD_OFFSET ((uint32_t)0x00000020) /*!< Only applicable for STM32F072 devices */ - -/* DOR register offset */ -#define DOR_OFFSET ((uint32_t)0x0000002C) - -/* Private macro -------------------------------------------------------------*/ -/* Private variables ---------------------------------------------------------*/ -/* Private function prototypes -----------------------------------------------*/ -/* Private functions ---------------------------------------------------------*/ - -/** @defgroup DAC_Private_Functions - * @{ - */ - -/** @defgroup DAC_Group1 DAC channels configuration - * @brief DAC channels configuration: trigger, output buffer, data format - * -@verbatim - =============================================================================== - ##### DAC channels configuration: trigger, output buffer, data format ##### - =============================================================================== - -@endverbatim - * @{ - */ - -/** - * @brief Deinitializes the DAC peripheral registers to their default reset values. - * @param None - * @retval None - */ -void DAC_DeInit(void) -{ - /* Enable DAC reset state */ - RCC_APB1PeriphResetCmd(RCC_APB1Periph_DAC, ENABLE); - /* Release DAC from reset state */ - RCC_APB1PeriphResetCmd(RCC_APB1Periph_DAC, DISABLE); -} - -/** - * @brief Initializes the DAC peripheral according to the specified parameters - * in the DAC_InitStruct. - * @param DAC_Channel: the selected DAC channel. - * This parameter can be: - * @arg DAC_Channel_1: DAC Channel1 selected - * @arg DAC_Channel_2: DAC Channel2 selected, applicable only for STM32F072 devices - * @param DAC_InitStruct: pointer to a DAC_InitTypeDef structure that contains - * the configuration information for the specified DAC channel. - * @retval None - */ -void DAC_Init(uint32_t DAC_Channel, DAC_InitTypeDef* DAC_InitStruct) -{ - uint32_t tmpreg1 = 0, tmpreg2 = 0; - - /* Check the DAC parameters */ - assert_param(IS_DAC_TRIGGER(DAC_InitStruct->DAC_Trigger)); - assert_param(IS_DAC_GENERATE_WAVE(DAC_InitStruct->DAC_WaveGeneration)); - assert_param(IS_DAC_LFSR_UNMASK_TRIANGLE_AMPLITUDE(DAC_InitStruct->DAC_LFSRUnmask_TriangleAmplitude)); - assert_param(IS_DAC_OUTPUT_BUFFER_STATE(DAC_InitStruct->DAC_OutputBuffer)); - -/*---------------------------- DAC CR Configuration --------------------------*/ - /* Get the DAC CR value */ - tmpreg1 = DAC->CR; - /* Clear BOFFx, TENx, TSELx, WAVEx and MAMPx bits */ - tmpreg1 &= ~(CR_CLEAR_MASK << DAC_Channel); - /* Configure for the selected DAC channel: buffer output, trigger, - wave generation, mask/amplitude for wave generation */ - /* Set TSELx and TENx bits according to DAC_Trigger value */ - /* Set WAVEx bits according to DAC_WaveGeneration value */ - /* Set MAMPx bits according to DAC_LFSRUnmask_TriangleAmplitude value */ - /* Set BOFFx bit according to DAC_OutputBuffer value */ - tmpreg2 = (DAC_InitStruct->DAC_Trigger | DAC_InitStruct->DAC_WaveGeneration | - DAC_InitStruct->DAC_LFSRUnmask_TriangleAmplitude | \ - DAC_InitStruct->DAC_OutputBuffer); - /* Calculate CR register value depending on DAC_Channel */ - tmpreg1 |= tmpreg2 << DAC_Channel; - /* Write to DAC CR */ - DAC->CR = tmpreg1; -} - -/** - * @brief Fills each DAC_InitStruct member with its default value. - * @param DAC_InitStruct: pointer to a DAC_InitTypeDef structure which will - * be initialized. - * @retval None - */ -void DAC_StructInit(DAC_InitTypeDef* DAC_InitStruct) -{ -/*--------------- Reset DAC init structure parameters values -----------------*/ - /* Initialize the DAC_Trigger member */ - DAC_InitStruct->DAC_Trigger = DAC_Trigger_None; - - /* Initialize the DAC_WaveGeneration member */ - DAC_InitStruct->DAC_WaveGeneration = DAC_WaveGeneration_None; - - /* Initialize the DAC_LFSRUnmask_TriangleAmplitude member */ - DAC_InitStruct->DAC_LFSRUnmask_TriangleAmplitude = DAC_LFSRUnmask_Bit0; - - /* Initialize the DAC_OutputBuffer member */ - DAC_InitStruct->DAC_OutputBuffer = DAC_OutputBuffer_Enable; -} - -/** - * @brief Enables or disables the specified DAC channel. - * @param DAC_Channel: The selected DAC channel. - * This parameter can be one of the following values: - * @arg DAC_Channel_1: DAC Channel1 selected - * @arg DAC_Channel_2: DAC Channel2 selected, applicable only for STM32F072 devices - * @param NewState: new state of the DAC channel. - * This parameter can be: ENABLE or DISABLE. - * @note When the DAC channel is enabled the trigger source can no more be modified. - * @retval None - */ -void DAC_Cmd(uint32_t DAC_Channel, FunctionalState NewState) -{ - /* Check the parameters */ - assert_param(IS_DAC_CHANNEL(DAC_Channel)); - assert_param(IS_FUNCTIONAL_STATE(NewState)); - - if (NewState != DISABLE) - { - /* Enable the selected DAC channel */ - DAC->CR |= (DAC_CR_EN1 << DAC_Channel); - } - else - { - /* Disable the selected DAC channel */ - DAC->CR &= (~(DAC_CR_EN1 << DAC_Channel)); - } -} - -/** - * @brief Enables or disables the selected DAC channel software trigger. - * @param DAC_Channel: The selected DAC channel. - * This parameter can be one of the following values: - * @arg DAC_Channel_1: DAC Channel1 selected - * @arg DAC_Channel_2: DAC Channel2 selected, applicable only for STM32F072 devices - * @param NewState: new state of the selected DAC channel software trigger. - * This parameter can be: ENABLE or DISABLE. - * @retval None - */ -void DAC_SoftwareTriggerCmd(uint32_t DAC_Channel, FunctionalState NewState) -{ - /* Check the parameters */ - assert_param(IS_DAC_CHANNEL(DAC_Channel)); - assert_param(IS_FUNCTIONAL_STATE(NewState)); - - if (NewState != DISABLE) - { - /* Enable software trigger for the selected DAC channel */ - DAC->SWTRIGR |= (uint32_t)DAC_SWTRIGR_SWTRIG1 << (DAC_Channel >> 4); - } - else - { - /* Disable software trigger for the selected DAC channel */ - DAC->SWTRIGR &= ~((uint32_t)DAC_SWTRIGR_SWTRIG1 << (DAC_Channel >> 4)); - } -} - -/** - * @brief Enables or disables simultaneously the two DAC channels software triggers. - * This function is applicable only for STM32F072 devices. - * @param NewState: new state of the DAC channels software triggers. - * This parameter can be: ENABLE or DISABLE. - * @retval None - */ -void DAC_DualSoftwareTriggerCmd(FunctionalState NewState) -{ - /* Check the parameters */ - assert_param(IS_FUNCTIONAL_STATE(NewState)); - - if (NewState != DISABLE) - { - /* Enable software trigger for both DAC channels */ - DAC->SWTRIGR |= DUAL_SWTRIG_SET; - } - else - { - /* Disable software trigger for both DAC channels */ - DAC->SWTRIGR &= DUAL_SWTRIG_RESET; - } -} - -/** - * @brief Enables or disables the selected DAC channel wave generation. - * This function is applicable only for STM32F072 devices. - * @param DAC_Channel: The selected DAC channel. - * This parameter can be: - * @arg DAC_Channel_1: DAC Channel1 selected - * @arg DAC_Channel_2: DAC Channel2 selected - * @param DAC_Wave: specifies the wave type to enable or disable. - * This parameter can be: - * @arg DAC_Wave_Noise: noise wave generation - * @arg DAC_Wave_Triangle: triangle wave generation - * @param NewState: new state of the selected DAC channel wave generation. - * This parameter can be: ENABLE or DISABLE. - * @retval None - */ -void DAC_WaveGenerationCmd(uint32_t DAC_Channel, uint32_t DAC_Wave, FunctionalState NewState) -{ - /* Check the parameters */ - assert_param(IS_DAC_CHANNEL(DAC_Channel)); - assert_param(IS_DAC_WAVE(DAC_Wave)); - assert_param(IS_FUNCTIONAL_STATE(NewState)); - - if (NewState != DISABLE) - { - /* Enable the selected wave generation for the selected DAC channel */ - DAC->CR |= DAC_Wave << DAC_Channel; - } - else - { - /* Disable the selected wave generation for the selected DAC channel */ - DAC->CR &= ~(DAC_Wave << DAC_Channel); - } -} - -/** - * @brief Set the specified data holding register value for DAC channel1. - * @param DAC_Align: Specifies the data alignment for DAC channel1. - * This parameter can be one of the following values: - * @arg DAC_Align_8b_R: 8bit right data alignment selected - * @arg DAC_Align_12b_L: 12bit left data alignment selected - * @arg DAC_Align_12b_R: 12bit right data alignment selected - * @param Data: Data to be loaded in the selected data holding register. - * @retval None - */ -void DAC_SetChannel1Data(uint32_t DAC_Align, uint16_t Data) -{ - __IO uint32_t tmp = 0; - - /* Check the parameters */ - assert_param(IS_DAC_ALIGN(DAC_Align)); - assert_param(IS_DAC_DATA(Data)); - - tmp = (uint32_t)DAC_BASE; - tmp += DHR12R1_OFFSET + DAC_Align; - - /* Set the DAC channel1 selected data holding register */ - *(__IO uint32_t *) tmp = Data; -} - -/** - * @brief Sets the specified data holding register value for DAC channel2. - * This function is applicable only for STM32F072 devices. - * @param DAC_Align: Specifies the data alignment for DAC channel2. - * This parameter can be: - * @arg DAC_Align_8b_R: 8bit right data alignment selected - * @arg DAC_Align_12b_L: 12bit left data alignment selected - * @arg DAC_Align_12b_R: 12bit right data alignment selected - * @param Data: Data to be loaded in the selected data holding register. - * @retval None - */ -void DAC_SetChannel2Data(uint32_t DAC_Align, uint16_t Data) -{ - __IO uint32_t tmp = 0; - - /* Check the parameters */ - assert_param(IS_DAC_ALIGN(DAC_Align)); - assert_param(IS_DAC_DATA(Data)); - - tmp = (uint32_t)DAC_BASE; - tmp += DHR12R2_OFFSET + DAC_Align; - - /* Set the DAC channel2 selected data holding register */ - *(__IO uint32_t *)tmp = Data; -} - -/** - * @brief Sets the specified data holding register value for dual channel DAC. - * This function is applicable only for STM32F072 devices. - * @param DAC_Align: Specifies the data alignment for dual channel DAC. - * This parameter can be: - * @arg DAC_Align_8b_R: 8bit right data alignment selected - * @arg DAC_Align_12b_L: 12bit left data alignment selected - * @arg DAC_Align_12b_R: 12bit right data alignment selected - * @param Data2: Data for DAC Channel2 to be loaded in the selected data holding register. - * @param Data1: Data for DAC Channel1 to be loaded in the selected data holding register. - * @note In dual mode, a unique register access is required to write in both - * DAC channels at the same time. - * @retval None - */ -void DAC_SetDualChannelData(uint32_t DAC_Align, uint16_t Data2, uint16_t Data1) -{ - uint32_t data = 0, tmp = 0; - - /* Check the parameters */ - assert_param(IS_DAC_ALIGN(DAC_Align)); - assert_param(IS_DAC_DATA(Data1)); - assert_param(IS_DAC_DATA(Data2)); - - /* Calculate and set dual DAC data holding register value */ - if (DAC_Align == DAC_Align_8b_R) - { - data = ((uint32_t)Data2 << 8) | Data1; - } - else - { - data = ((uint32_t)Data2 << 16) | Data1; - } - - tmp = (uint32_t)DAC_BASE; - tmp += DHR12RD_OFFSET + DAC_Align; - - /* Set the dual DAC selected data holding register */ - *(__IO uint32_t *)tmp = data; -} - -/** - * @brief Returns the last data output value of the selected DAC channel. - * @param DAC_Channel: The selected DAC channel. - * This parameter can be one of the following values: - * @arg DAC_Channel_1: DAC Channel1 selected - * @arg DAC_Channel_2: DAC Channel2 selected, applicable only for STM32F072 devices - * @retval The selected DAC channel data output value. - */ -uint16_t DAC_GetDataOutputValue(uint32_t DAC_Channel) -{ - __IO uint32_t tmp = 0; - - /* Check the parameters */ - assert_param(IS_DAC_CHANNEL(DAC_Channel)); - - tmp = (uint32_t) DAC_BASE ; - tmp += DOR_OFFSET + ((uint32_t)DAC_Channel >> 2); - - /* Returns the DAC channel data output register value */ - return (uint16_t) (*(__IO uint32_t*) tmp); -} - -/** - * @} - */ - -/** @defgroup DAC_Group2 DMA management functions - * @brief DMA management functions - * -@verbatim - =============================================================================== - ##### DMA management functions ##### - =============================================================================== - -@endverbatim - * @{ - */ - -/** - * @brief Enables or disables the specified DAC channel DMA request. - * When enabled DMA1 is generated when an external trigger (EXTI Line9, - * TIM2, TIM3, TIM6 or TIM15 but not a software trigger) occurs - * @param DAC_Channel: the selected DAC channel. - * This parameter can be one of the following values: - * @arg DAC_Channel_1: DAC Channel1 selected - * @arg DAC_Channel_2: DAC Channel2 selected, applicable only for STM32F072 devices - * @param NewState: new state of the selected DAC channel DMA request. - * This parameter can be: ENABLE or DISABLE. - * @note The DAC channel1 is mapped on DMA1 channel3 which must be already configured. - * @note The DAC channel2 is mapped on DMA1 channel4 which must be already configured. - * @retval None - */ -void DAC_DMACmd(uint32_t DAC_Channel, FunctionalState NewState) -{ - /* Check the parameters */ - assert_param(IS_DAC_CHANNEL(DAC_Channel)); - assert_param(IS_FUNCTIONAL_STATE(NewState)); - - if (NewState != DISABLE) - { - /* Enable the selected DAC channel DMA request */ - DAC->CR |= (DAC_CR_DMAEN1 << DAC_Channel); - } - else - { - /* Disable the selected DAC channel DMA request */ - DAC->CR &= (~(DAC_CR_DMAEN1 << DAC_Channel)); - } -} - -/** - * @} - */ - -/** @defgroup DAC_Group3 Interrupts and flags management functions - * @brief Interrupts and flags management functions - * -@verbatim - =============================================================================== - ##### Interrupts and flags management functions ##### - =============================================================================== - -@endverbatim - * @{ - */ - -/** - * @brief Enables or disables the specified DAC interrupts. - * @param DAC_Channel: The selected DAC channel. - * This parameter can be: - * @arg DAC_Channel_1: DAC Channel1 selected - * @arg DAC_Channel_2: DAC Channel2 selected, applicable only for STM32F072 devices - * @param DAC_IT: specifies the DAC interrupt sources to be enabled or disabled. - * This parameter can be the following values: - * @arg DAC_IT_DMAUDR: DMA underrun interrupt mask - * @note The DMA underrun occurs when a second external trigger arrives before the - * acknowledgement for the first external trigger is received (first request). - * @param NewState: new state of the specified DAC interrupts. - * This parameter can be: ENABLE or DISABLE. - * @retval None - */ -void DAC_ITConfig(uint32_t DAC_Channel, uint32_t DAC_IT, FunctionalState NewState) -{ - /* Check the parameters */ - assert_param(IS_DAC_CHANNEL(DAC_Channel)); - assert_param(IS_FUNCTIONAL_STATE(NewState)); - assert_param(IS_DAC_IT(DAC_IT)); - - if (NewState != DISABLE) - { - /* Enable the selected DAC interrupts */ - DAC->CR |= (DAC_IT << DAC_Channel); - } - else - { - /* Disable the selected DAC interrupts */ - DAC->CR &= (~(uint32_t)(DAC_IT << DAC_Channel)); - } -} - -/** - * @brief Checks whether the specified DAC flag is set or not. - * @param DAC_Channel: The selected DAC channel. - * This parameter can be one of the following values: - * @arg DAC_Channel_1: DAC Channel1 selected - * @arg DAC_Channel_2: DAC Channel2 selected, applicable only for STM32F072 devices - * @param DAC_FLAG: specifies the flag to check. - * This parameter can be only of the following value: - * @arg DAC_FLAG_DMAUDR: DMA underrun flag - * @note The DMA underrun occurs when a second external trigger arrives before the - * acknowledgement for the first external trigger is received (first request). - * @retval The new state of DAC_FLAG (SET or RESET). - */ -FlagStatus DAC_GetFlagStatus(uint32_t DAC_Channel, uint32_t DAC_FLAG) -{ - FlagStatus bitstatus = RESET; - /* Check the parameters */ - assert_param(IS_DAC_CHANNEL(DAC_Channel)); - assert_param(IS_DAC_FLAG(DAC_FLAG)); - - /* Check the status of the specified DAC flag */ - if ((DAC->SR & (DAC_FLAG << DAC_Channel)) != (uint8_t)RESET) - { - /* DAC_FLAG is set */ - bitstatus = SET; - } - else - { - /* DAC_FLAG is reset */ - bitstatus = RESET; - } - /* Return the DAC_FLAG status */ - return bitstatus; -} - -/** - * @brief Clears the DAC channel's pending flags. - * @param DAC_Channel: The selected DAC channel. - * This parameter can be one of the following values: - * @arg DAC_Channel_1: DAC Channel1 selected - * @arg DAC_Channel_2: DAC Channel2 selected, applicable only for STM32F072 devices - * @param DAC_FLAG: specifies the flag to clear. - * This parameter can be of the following value: - * @arg DAC_FLAG_DMAUDR: DMA underrun flag - * @retval None - */ -void DAC_ClearFlag(uint32_t DAC_Channel, uint32_t DAC_FLAG) -{ - /* Check the parameters */ - assert_param(IS_DAC_CHANNEL(DAC_Channel)); - assert_param(IS_DAC_FLAG(DAC_FLAG)); - - /* Clear the selected DAC flags */ - DAC->SR = (DAC_FLAG << DAC_Channel); -} - -/** - * @brief Checks whether the specified DAC interrupt has occurred or not. - * @param DAC_Channel: The selected DAC channel. - * This parameter can be one of the following values: - * @arg DAC_Channel_1: DAC Channel1 selected - * @arg DAC_Channel_2: DAC Channel2 selected, applicable only for STM32F072 devices - * @param DAC_IT: specifies the DAC interrupt source to check. - * This parameter can be the following values: - * @arg DAC_IT_DMAUDR: DMA underrun interrupt mask - * @note The DMA underrun occurs when a second external trigger arrives before the - * acknowledgement for the first external trigger is received (first request). - * @retval The new state of DAC_IT (SET or RESET). - */ -ITStatus DAC_GetITStatus(uint32_t DAC_Channel, uint32_t DAC_IT) -{ - ITStatus bitstatus = RESET; - uint32_t enablestatus = 0; - - /* Check the parameters */ - assert_param(IS_DAC_CHANNEL(DAC_Channel)); - assert_param(IS_DAC_IT(DAC_IT)); - - /* Get the DAC_IT enable bit status */ - enablestatus = (DAC->CR & (DAC_IT << DAC_Channel)) ; - - /* Check the status of the specified DAC interrupt */ - if (((DAC->SR & (DAC_IT << DAC_Channel)) != (uint32_t)RESET) && enablestatus) - { - /* DAC_IT is set */ - bitstatus = SET; - } - else - { - /* DAC_IT is reset */ - bitstatus = RESET; - } - /* Return the DAC_IT status */ - return bitstatus; -} - -/** - * @brief Clears the DAC channel's interrupt pending bits. - * @param DAC_Channel: The selected DAC channel. - * This parameter can be one of the following values: - * @arg DAC_Channel_1: DAC Channel1 selected - * @arg DAC_Channel_2: DAC Channel2 selected, applicable only for STM32F072 devices - * @param DAC_IT: specifies the DAC interrupt pending bit to clear. - * This parameter can be the following values: - * @arg DAC_IT_DMAUDR: DMA underrun interrupt mask - * @retval None - */ -void DAC_ClearITPendingBit(uint32_t DAC_Channel, uint32_t DAC_IT) -{ - /* Check the parameters */ - assert_param(IS_DAC_CHANNEL(DAC_Channel)); - assert_param(IS_DAC_IT(DAC_IT)); - - /* Clear the selected DAC interrupt pending bits */ - DAC->SR = (DAC_IT << DAC_Channel); -} - -/** - * @} - */ - -/** - * @} - */ - -/** - * @} - */ - -/** - * @} - */ - -/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/ |