305 lines
14 KiB
C
305 lines
14 KiB
C
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/**
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******************************************************************************
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* @file stm32f4xx_dac.h
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* @author MCD Application Team
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* @version V1.4.0
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* @date 04-August-2014
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* @brief This file contains all the functions prototypes for the DAC firmware
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* library.
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******************************************************************************
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* @attention
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*
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* <h2><center>© COPYRIGHT 2014 STMicroelectronics</center></h2>
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*
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* Licensed under MCD-ST Liberty SW License Agreement V2, (the "License");
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* You may not use this file except in compliance with the License.
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* You may obtain a copy of the License at:
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*
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* http://www.st.com/software_license_agreement_liberty_v2
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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******************************************************************************
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*/
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/* Define to prevent recursive inclusion -------------------------------------*/
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#ifndef __STM32F4xx_DAC_H
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#define __STM32F4xx_DAC_H
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#ifdef __cplusplus
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extern "C" {
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#endif
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/* Includes ------------------------------------------------------------------*/
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#include "stm32f4xx.h"
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/** @addtogroup STM32F4xx_StdPeriph_Driver
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* @{
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*/
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/** @addtogroup DAC
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* @{
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*/
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/* Exported types ------------------------------------------------------------*/
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/**
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* @brief DAC Init structure definition
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*/
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typedef struct
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{
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uint32_t DAC_Trigger; /*!< Specifies the external trigger for the selected DAC channel.
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This parameter can be a value of @ref DAC_trigger_selection */
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uint32_t DAC_WaveGeneration; /*!< Specifies whether DAC channel noise waves or triangle waves
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are generated, or whether no wave is generated.
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This parameter can be a value of @ref DAC_wave_generation */
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uint32_t DAC_LFSRUnmask_TriangleAmplitude; /*!< Specifies the LFSR mask for noise wave generation or
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the maximum amplitude triangle generation for the DAC channel.
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This parameter can be a value of @ref DAC_lfsrunmask_triangleamplitude */
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uint32_t DAC_OutputBuffer; /*!< Specifies whether the DAC channel output buffer is enabled or disabled.
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This parameter can be a value of @ref DAC_output_buffer */
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}DAC_InitTypeDef;
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/* Exported constants --------------------------------------------------------*/
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/** @defgroup DAC_Exported_Constants
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* @{
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*/
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/** @defgroup DAC_trigger_selection
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* @{
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*/
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#define DAC_Trigger_None ((uint32_t)0x00000000) /*!< Conversion is automatic once the DAC1_DHRxxxx register
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has been loaded, and not by external trigger */
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#define DAC_Trigger_T2_TRGO ((uint32_t)0x00000024) /*!< TIM2 TRGO selected as external conversion trigger for DAC channel */
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#define DAC_Trigger_T4_TRGO ((uint32_t)0x0000002C) /*!< TIM4 TRGO selected as external conversion trigger for DAC channel */
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#define DAC_Trigger_T5_TRGO ((uint32_t)0x0000001C) /*!< TIM5 TRGO selected as external conversion trigger for DAC channel */
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#define DAC_Trigger_T6_TRGO ((uint32_t)0x00000004) /*!< TIM6 TRGO selected as external conversion trigger for DAC channel */
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#define DAC_Trigger_T7_TRGO ((uint32_t)0x00000014) /*!< TIM7 TRGO selected as external conversion trigger for DAC channel */
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#define DAC_Trigger_T8_TRGO ((uint32_t)0x0000000C) /*!< TIM8 TRGO selected as external conversion trigger for DAC channel */
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#define DAC_Trigger_Ext_IT9 ((uint32_t)0x00000034) /*!< EXTI Line9 event selected as external conversion trigger for DAC channel */
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#define DAC_Trigger_Software ((uint32_t)0x0000003C) /*!< Conversion started by software trigger for DAC channel */
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#define IS_DAC_TRIGGER(TRIGGER) (((TRIGGER) == DAC_Trigger_None) || \
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((TRIGGER) == DAC_Trigger_T6_TRGO) || \
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((TRIGGER) == DAC_Trigger_T8_TRGO) || \
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((TRIGGER) == DAC_Trigger_T7_TRGO) || \
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((TRIGGER) == DAC_Trigger_T5_TRGO) || \
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((TRIGGER) == DAC_Trigger_T2_TRGO) || \
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((TRIGGER) == DAC_Trigger_T4_TRGO) || \
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((TRIGGER) == DAC_Trigger_Ext_IT9) || \
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((TRIGGER) == DAC_Trigger_Software))
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/**
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* @}
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*/
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/** @defgroup DAC_wave_generation
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* @{
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*/
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#define DAC_WaveGeneration_None ((uint32_t)0x00000000)
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#define DAC_WaveGeneration_Noise ((uint32_t)0x00000040)
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#define DAC_WaveGeneration_Triangle ((uint32_t)0x00000080)
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#define IS_DAC_GENERATE_WAVE(WAVE) (((WAVE) == DAC_WaveGeneration_None) || \
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((WAVE) == DAC_WaveGeneration_Noise) || \
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((WAVE) == DAC_WaveGeneration_Triangle))
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/**
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* @}
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*/
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/** @defgroup DAC_lfsrunmask_triangleamplitude
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* @{
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*/
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#define DAC_LFSRUnmask_Bit0 ((uint32_t)0x00000000) /*!< Unmask DAC channel LFSR bit0 for noise wave generation */
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#define DAC_LFSRUnmask_Bits1_0 ((uint32_t)0x00000100) /*!< Unmask DAC channel LFSR bit[1:0] for noise wave generation */
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#define DAC_LFSRUnmask_Bits2_0 ((uint32_t)0x00000200) /*!< Unmask DAC channel LFSR bit[2:0] for noise wave generation */
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#define DAC_LFSRUnmask_Bits3_0 ((uint32_t)0x00000300) /*!< Unmask DAC channel LFSR bit[3:0] for noise wave generation */
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#define DAC_LFSRUnmask_Bits4_0 ((uint32_t)0x00000400) /*!< Unmask DAC channel LFSR bit[4:0] for noise wave generation */
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#define DAC_LFSRUnmask_Bits5_0 ((uint32_t)0x00000500) /*!< Unmask DAC channel LFSR bit[5:0] for noise wave generation */
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#define DAC_LFSRUnmask_Bits6_0 ((uint32_t)0x00000600) /*!< Unmask DAC channel LFSR bit[6:0] for noise wave generation */
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#define DAC_LFSRUnmask_Bits7_0 ((uint32_t)0x00000700) /*!< Unmask DAC channel LFSR bit[7:0] for noise wave generation */
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#define DAC_LFSRUnmask_Bits8_0 ((uint32_t)0x00000800) /*!< Unmask DAC channel LFSR bit[8:0] for noise wave generation */
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#define DAC_LFSRUnmask_Bits9_0 ((uint32_t)0x00000900) /*!< Unmask DAC channel LFSR bit[9:0] for noise wave generation */
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#define DAC_LFSRUnmask_Bits10_0 ((uint32_t)0x00000A00) /*!< Unmask DAC channel LFSR bit[10:0] for noise wave generation */
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#define DAC_LFSRUnmask_Bits11_0 ((uint32_t)0x00000B00) /*!< Unmask DAC channel LFSR bit[11:0] for noise wave generation */
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#define DAC_TriangleAmplitude_1 ((uint32_t)0x00000000) /*!< Select max triangle amplitude of 1 */
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#define DAC_TriangleAmplitude_3 ((uint32_t)0x00000100) /*!< Select max triangle amplitude of 3 */
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#define DAC_TriangleAmplitude_7 ((uint32_t)0x00000200) /*!< Select max triangle amplitude of 7 */
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#define DAC_TriangleAmplitude_15 ((uint32_t)0x00000300) /*!< Select max triangle amplitude of 15 */
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#define DAC_TriangleAmplitude_31 ((uint32_t)0x00000400) /*!< Select max triangle amplitude of 31 */
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#define DAC_TriangleAmplitude_63 ((uint32_t)0x00000500) /*!< Select max triangle amplitude of 63 */
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#define DAC_TriangleAmplitude_127 ((uint32_t)0x00000600) /*!< Select max triangle amplitude of 127 */
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#define DAC_TriangleAmplitude_255 ((uint32_t)0x00000700) /*!< Select max triangle amplitude of 255 */
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#define DAC_TriangleAmplitude_511 ((uint32_t)0x00000800) /*!< Select max triangle amplitude of 511 */
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#define DAC_TriangleAmplitude_1023 ((uint32_t)0x00000900) /*!< Select max triangle amplitude of 1023 */
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#define DAC_TriangleAmplitude_2047 ((uint32_t)0x00000A00) /*!< Select max triangle amplitude of 2047 */
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#define DAC_TriangleAmplitude_4095 ((uint32_t)0x00000B00) /*!< Select max triangle amplitude of 4095 */
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#define IS_DAC_LFSR_UNMASK_TRIANGLE_AMPLITUDE(VALUE) (((VALUE) == DAC_LFSRUnmask_Bit0) || \
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((VALUE) == DAC_LFSRUnmask_Bits1_0) || \
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((VALUE) == DAC_LFSRUnmask_Bits2_0) || \
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((VALUE) == DAC_LFSRUnmask_Bits3_0) || \
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((VALUE) == DAC_LFSRUnmask_Bits4_0) || \
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((VALUE) == DAC_LFSRUnmask_Bits5_0) || \
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((VALUE) == DAC_LFSRUnmask_Bits6_0) || \
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((VALUE) == DAC_LFSRUnmask_Bits7_0) || \
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((VALUE) == DAC_LFSRUnmask_Bits8_0) || \
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((VALUE) == DAC_LFSRUnmask_Bits9_0) || \
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((VALUE) == DAC_LFSRUnmask_Bits10_0) || \
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((VALUE) == DAC_LFSRUnmask_Bits11_0) || \
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((VALUE) == DAC_TriangleAmplitude_1) || \
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((VALUE) == DAC_TriangleAmplitude_3) || \
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((VALUE) == DAC_TriangleAmplitude_7) || \
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((VALUE) == DAC_TriangleAmplitude_15) || \
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((VALUE) == DAC_TriangleAmplitude_31) || \
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((VALUE) == DAC_TriangleAmplitude_63) || \
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((VALUE) == DAC_TriangleAmplitude_127) || \
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((VALUE) == DAC_TriangleAmplitude_255) || \
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((VALUE) == DAC_TriangleAmplitude_511) || \
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((VALUE) == DAC_TriangleAmplitude_1023) || \
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((VALUE) == DAC_TriangleAmplitude_2047) || \
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((VALUE) == DAC_TriangleAmplitude_4095))
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/**
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* @}
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*/
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/** @defgroup DAC_output_buffer
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* @{
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*/
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#define DAC_OutputBuffer_Enable ((uint32_t)0x00000000)
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#define DAC_OutputBuffer_Disable ((uint32_t)0x00000002)
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#define IS_DAC_OUTPUT_BUFFER_STATE(STATE) (((STATE) == DAC_OutputBuffer_Enable) || \
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((STATE) == DAC_OutputBuffer_Disable))
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/**
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* @}
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*/
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/** @defgroup DAC_Channel_selection
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* @{
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*/
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#define DAC_Channel_1 ((uint32_t)0x00000000)
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#define DAC_Channel_2 ((uint32_t)0x00000010)
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#define IS_DAC_CHANNEL(CHANNEL) (((CHANNEL) == DAC_Channel_1) || \
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((CHANNEL) == DAC_Channel_2))
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/**
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* @}
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*/
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/** @defgroup DAC_data_alignement
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* @{
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*/
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#define DAC_Align_12b_R ((uint32_t)0x00000000)
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#define DAC_Align_12b_L ((uint32_t)0x00000004)
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#define DAC_Align_8b_R ((uint32_t)0x00000008)
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#define IS_DAC_ALIGN(ALIGN) (((ALIGN) == DAC_Align_12b_R) || \
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((ALIGN) == DAC_Align_12b_L) || \
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((ALIGN) == DAC_Align_8b_R))
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/**
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* @}
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*/
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/** @defgroup DAC_wave_generation
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* @{
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*/
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#define DAC_Wave_Noise ((uint32_t)0x00000040)
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#define DAC_Wave_Triangle ((uint32_t)0x00000080)
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#define IS_DAC_WAVE(WAVE) (((WAVE) == DAC_Wave_Noise) || \
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((WAVE) == DAC_Wave_Triangle))
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/**
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* @}
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*/
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/** @defgroup DAC_data
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* @{
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*/
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#define IS_DAC_DATA(DATA) ((DATA) <= 0xFFF0)
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/**
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* @}
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*/
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/** @defgroup DAC_interrupts_definition
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* @{
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*/
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#define DAC_IT_DMAUDR ((uint32_t)0x00002000)
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#define IS_DAC_IT(IT) (((IT) == DAC_IT_DMAUDR))
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/**
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* @}
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*/
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/** @defgroup DAC_flags_definition
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* @{
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*/
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#define DAC_FLAG_DMAUDR ((uint32_t)0x00002000)
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#define IS_DAC_FLAG(FLAG) (((FLAG) == DAC_FLAG_DMAUDR))
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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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/* Exported macro ------------------------------------------------------------*/
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/* Exported functions --------------------------------------------------------*/
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/* Function used to set the DAC configuration to the default reset state *****/
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void DAC_DeInit(void);
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/* DAC channels configuration: trigger, output buffer, data format functions */
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void DAC_Init(uint32_t DAC_Channel, DAC_InitTypeDef* DAC_InitStruct);
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void DAC_StructInit(DAC_InitTypeDef* DAC_InitStruct);
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void DAC_Cmd(uint32_t DAC_Channel, FunctionalState NewState);
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void DAC_SoftwareTriggerCmd(uint32_t DAC_Channel, FunctionalState NewState);
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void DAC_DualSoftwareTriggerCmd(FunctionalState NewState);
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void DAC_WaveGenerationCmd(uint32_t DAC_Channel, uint32_t DAC_Wave, FunctionalState NewState);
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void DAC_SetChannel1Data(uint32_t DAC_Align, uint16_t Data);
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void DAC_SetChannel2Data(uint32_t DAC_Align, uint16_t Data);
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void DAC_SetDualChannelData(uint32_t DAC_Align, uint16_t Data2, uint16_t Data1);
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uint16_t DAC_GetDataOutputValue(uint32_t DAC_Channel);
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/* DMA management functions ***************************************************/
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void DAC_DMACmd(uint32_t DAC_Channel, FunctionalState NewState);
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/* Interrupts and flags management functions **********************************/
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void DAC_ITConfig(uint32_t DAC_Channel, uint32_t DAC_IT, FunctionalState NewState);
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FlagStatus DAC_GetFlagStatus(uint32_t DAC_Channel, uint32_t DAC_FLAG);
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void DAC_ClearFlag(uint32_t DAC_Channel, uint32_t DAC_FLAG);
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ITStatus DAC_GetITStatus(uint32_t DAC_Channel, uint32_t DAC_IT);
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void DAC_ClearITPendingBit(uint32_t DAC_Channel, uint32_t DAC_IT);
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#ifdef __cplusplus
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}
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#endif
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#endif /*__STM32F4xx_DAC_H */
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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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/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
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