shao ziyang / mbed-src-kl05

mbed library sources

Dependents:   frdm_kl05z_gpio_test

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targets/cmsis/TARGET_STM/TARGET_NUCLEO_F030R8/stm32f0xx_dac.c@106:ced8cbb51063, 2014-02-26 (annotated)

Committer:
mbed_official
Date:
Wed Feb 26 09:45:12 2014 +0000
Revision:
106:ced8cbb51063
Parent:
76:aeb1df146756 
Synchronized with git revision 4222735eff5868389433f0e9271976b39c8115cd



Full URL: https://github.com/mbedmicro/mbed/commit/4222735eff5868389433f0e9271976b39c8115cd/



[NUCLEO_xxx] Update STM32CubeF4 driver V1.0.0 + update license

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mbed_official 76:aeb1df146756 1 /**
mbed_official 76:aeb1df146756 2 ******************************************************************************
mbed_official 76:aeb1df146756 3 * @file stm32f0xx_dac.c
mbed_official 76:aeb1df146756 4 * @author MCD Application Team
mbed_official 76:aeb1df146756 5 * @version V1.3.0
mbed_official 76:aeb1df146756 6 * @date 16-January-2014
mbed_official 76:aeb1df146756 7 * @brief This file provides firmware functions to manage the following
mbed_official 76:aeb1df146756 8 * functionalities of the Digital-to-Analog Converter (DAC) peripheral
mbed_official 76:aeb1df146756 9 * applicable only on STM32F051 and STM32F072 devices:
mbed_official 76:aeb1df146756 10 * + DAC channel configuration: trigger, output buffer, data format
mbed_official 76:aeb1df146756 11 * + DMA management
mbed_official 76:aeb1df146756 12 * + Interrupts and flags management
mbed_official 76:aeb1df146756 13 *
mbed_official 76:aeb1df146756 14 * @verbatim
mbed_official 76:aeb1df146756 15 *
mbed_official 76:aeb1df146756 16 ===============================================================================
mbed_official 76:aeb1df146756 17 ##### DAC Peripheral features #####
mbed_official 76:aeb1df146756 18 ===============================================================================
mbed_official 76:aeb1df146756 19 [..] The device integrates two 12-bit Digital Analog Converters refered as
mbed_official 76:aeb1df146756 20 DAC channel1 with DAC_OUT1 (PA4) and DAC_OUT2 (PA5) as outputs.
mbed_official 76:aeb1df146756 21
mbed_official 76:aeb1df146756 22 [..] Digital to Analog conversion can be non-triggered using DAC_Trigger_None
mbed_official 76:aeb1df146756 23 and DAC_OUTx is available once writing to DHRx register using
mbed_official 76:aeb1df146756 24 DAC_SetChannel1Data() or DAC_SetChannel2Data()
mbed_official 76:aeb1df146756 25
mbed_official 76:aeb1df146756 26 [..] Digital to Analog conversion can be triggered by:
mbed_official 76:aeb1df146756 27 (#) External event: EXTI Line 9 (any GPIOx_Pin9) using DAC_Trigger_Ext_IT9.
mbed_official 76:aeb1df146756 28 The used pin (GPIOx_Pin9) must be configured in input mode.
mbed_official 76:aeb1df146756 29
mbed_official 76:aeb1df146756 30 (#) Timers TRGO: TIM2, TIM3,TIM7, TIM6 and TIM15
mbed_official 76:aeb1df146756 31 (DAC_Trigger_T2_TRGO, DAC_Trigger_T3_TRGO...)
mbed_official 76:aeb1df146756 32 The timer TRGO event should be selected using TIM_SelectOutputTrigger()
mbed_official 76:aeb1df146756 33
mbed_official 76:aeb1df146756 34 (#) Software using DAC_Trigger_Software
mbed_official 76:aeb1df146756 35
mbed_official 76:aeb1df146756 36 [..] Each DAC integrates an output buffer that can be used to
mbed_official 76:aeb1df146756 37 reduce the output impedance, and to drive external loads directly
mbed_official 76:aeb1df146756 38 without having to add an external operational amplifier.
mbed_official 76:aeb1df146756 39 To enable the output buffer use
mbed_official 76:aeb1df146756 40 DAC_InitStructure.DAC_OutputBuffer = DAC_OutputBuffer_Enable;
mbed_official 76:aeb1df146756 41
mbed_official 76:aeb1df146756 42 [..] Refer to the device datasheet for more details about output impedance
mbed_official 76:aeb1df146756 43 value with and without output buffer.
mbed_official 76:aeb1df146756 44
mbed_official 76:aeb1df146756 45 [..] DAC wave generation feature
mbed_official 76:aeb1df146756 46 Both DAC channels can be used to generate
mbed_official 76:aeb1df146756 47 1- Noise wave using DAC_WaveGeneration_Noise
mbed_official 76:aeb1df146756 48 2- Triangle wave using DAC_WaveGeneration_Triangle
mbed_official 76:aeb1df146756 49
mbed_official 76:aeb1df146756 50 [..] The DAC data format can be:
mbed_official 76:aeb1df146756 51 (#) 8-bit right alignment using DAC_Align_8b_R
mbed_official 76:aeb1df146756 52 (#) 12-bit left alignment using DAC_Align_12b_L
mbed_official 76:aeb1df146756 53 (#) 12-bit right alignment using DAC_Align_12b_R
mbed_official 76:aeb1df146756 54
mbed_official 76:aeb1df146756 55 [..] The analog output voltage on each DAC channel pin is determined
mbed_official 76:aeb1df146756 56 by the following equation: DAC_OUTx = VREF+ * DOR / 4095
mbed_official 76:aeb1df146756 57 with DOR is the Data Output Register
mbed_official 76:aeb1df146756 58 VEF+ is the input voltage reference (refer to the device datasheet)
mbed_official 76:aeb1df146756 59 e.g. To set DAC_OUT1 to 0.7V, use
mbed_official 76:aeb1df146756 60 DAC_SetChannel1Data(DAC_Align_12b_R, 868);
mbed_official 76:aeb1df146756 61 Assuming that VREF+ = 3.3, DAC_OUT1 = (3.3 * 868) / 4095 = 0.7V
mbed_official 76:aeb1df146756 62
mbed_official 76:aeb1df146756 63 [..] A DMA1 request can be generated when an external trigger (but not
mbed_official 76:aeb1df146756 64 a software trigger) occurs if DMA1 requests are enabled using
mbed_official 76:aeb1df146756 65 DAC_DMACmd()
mbed_official 76:aeb1df146756 66 DMA1 requests are mapped as following:
mbed_official 76:aeb1df146756 67 (+) DAC channel1 is mapped on DMA1 channel3 which must be already
mbed_official 76:aeb1df146756 68 configured
mbed_official 76:aeb1df146756 69 (+) DAC channel2 is mapped on DMA1 channel4 which must be already
mbed_official 76:aeb1df146756 70 configured
mbed_official 76:aeb1df146756 71
mbed_official 76:aeb1df146756 72 ##### How to use this driver #####
mbed_official 76:aeb1df146756 73 ===============================================================================
mbed_official 76:aeb1df146756 74 [..]
mbed_official 76:aeb1df146756 75 (+) Enable DAC APB1 clock to get write access to DAC registers
mbed_official 76:aeb1df146756 76 using RCC_APB1PeriphClockCmd(RCC_APB1Periph_DAC, ENABLE)
mbed_official 76:aeb1df146756 77
mbed_official 76:aeb1df146756 78 (+) Configure DAC_OUTx (DAC_OUT1: PA4, DAC_OUT2: PA5) in analog mode
mbed_official 76:aeb1df146756 79 using GPIO_Init() function
mbed_official 76:aeb1df146756 80
mbed_official 76:aeb1df146756 81 (+) Configure the DAC channel using DAC_Init()
mbed_official 76:aeb1df146756 82
mbed_official 76:aeb1df146756 83 (+) Enable the DAC channel using DAC_Cmd()
mbed_official 76:aeb1df146756 84
mbed_official 76:aeb1df146756 85 @endverbatim
mbed_official 76:aeb1df146756 86 *
mbed_official 76:aeb1df146756 87 ******************************************************************************
mbed_official 76:aeb1df146756 88 * @attention
mbed_official 76:aeb1df146756 89 *
mbed_official 106:ced8cbb51063 90 * <h2><center>&copy; COPYRIGHT(c) 2014 STMicroelectronics</center></h2>
mbed_official 76:aeb1df146756 91 *
mbed_official 106:ced8cbb51063 92 * Redistribution and use in source and binary forms, with or without modification,
mbed_official 106:ced8cbb51063 93 * are permitted provided that the following conditions are met:
mbed_official 106:ced8cbb51063 94 * 1. Redistributions of source code must retain the above copyright notice,
mbed_official 106:ced8cbb51063 95 * this list of conditions and the following disclaimer.
mbed_official 106:ced8cbb51063 96 * 2. Redistributions in binary form must reproduce the above copyright notice,
mbed_official 106:ced8cbb51063 97 * this list of conditions and the following disclaimer in the documentation
mbed_official 106:ced8cbb51063 98 * and/or other materials provided with the distribution.
mbed_official 106:ced8cbb51063 99 * 3. Neither the name of STMicroelectronics nor the names of its contributors
mbed_official 106:ced8cbb51063 100 * may be used to endorse or promote products derived from this software
mbed_official 106:ced8cbb51063 101 * without specific prior written permission.
mbed_official 76:aeb1df146756 102 *
mbed_official 106:ced8cbb51063 103 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
mbed_official 106:ced8cbb51063 104 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
mbed_official 106:ced8cbb51063 105 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
mbed_official 106:ced8cbb51063 106 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
mbed_official 106:ced8cbb51063 107 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
mbed_official 106:ced8cbb51063 108 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
mbed_official 106:ced8cbb51063 109 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
mbed_official 106:ced8cbb51063 110 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
mbed_official 106:ced8cbb51063 111 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
mbed_official 106:ced8cbb51063 112 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
mbed_official 76:aeb1df146756 113 *
mbed_official 76:aeb1df146756 114 ******************************************************************************
mbed_official 76:aeb1df146756 115 */
mbed_official 76:aeb1df146756 116
mbed_official 76:aeb1df146756 117 /* Includes ------------------------------------------------------------------*/
mbed_official 76:aeb1df146756 118 #include "stm32f0xx_dac.h"
mbed_official 76:aeb1df146756 119
mbed_official 76:aeb1df146756 120 /** @addtogroup STM32F0xx_StdPeriph_Driver
mbed_official 76:aeb1df146756 121 * @{
mbed_official 76:aeb1df146756 122 */
mbed_official 76:aeb1df146756 123
mbed_official 76:aeb1df146756 124 /** @defgroup DAC
mbed_official 76:aeb1df146756 125 * @brief DAC driver modules
mbed_official 76:aeb1df146756 126 * @{
mbed_official 76:aeb1df146756 127 */
mbed_official 76:aeb1df146756 128
mbed_official 76:aeb1df146756 129 /* Private typedef -----------------------------------------------------------*/
mbed_official 76:aeb1df146756 130 /* Private define ------------------------------------------------------------*/
mbed_official 76:aeb1df146756 131 /* CR register Mask */
mbed_official 76:aeb1df146756 132 #define CR_CLEAR_MASK ((uint32_t)0x00000FFE) /* check the value of the mask */
mbed_official 76:aeb1df146756 133
mbed_official 76:aeb1df146756 134 /* DAC Dual Channels SWTRIG masks */
mbed_official 76:aeb1df146756 135 #define DUAL_SWTRIG_SET ((uint32_t)0x00000003) /*!< Only applicable for STM32F072 devices */
mbed_official 76:aeb1df146756 136 #define DUAL_SWTRIG_RESET ((uint32_t)0xFFFFFFFC) /*!< Only applicable for STM32F072 devices */
mbed_official 76:aeb1df146756 137
mbed_official 76:aeb1df146756 138 /* DHR registers offsets */
mbed_official 76:aeb1df146756 139 #define DHR12R1_OFFSET ((uint32_t)0x00000008)
mbed_official 76:aeb1df146756 140 #define DHR12R2_OFFSET ((uint32_t)0x00000014) /*!< Only applicable for STM32F072 devices */
mbed_official 76:aeb1df146756 141 #define DHR12RD_OFFSET ((uint32_t)0x00000020) /*!< Only applicable for STM32F072 devices */
mbed_official 76:aeb1df146756 142
mbed_official 76:aeb1df146756 143 /* DOR register offset */
mbed_official 76:aeb1df146756 144 #define DOR_OFFSET ((uint32_t)0x0000002C)
mbed_official 76:aeb1df146756 145
mbed_official 76:aeb1df146756 146 /* Private macro -------------------------------------------------------------*/
mbed_official 76:aeb1df146756 147 /* Private variables ---------------------------------------------------------*/
mbed_official 76:aeb1df146756 148 /* Private function prototypes -----------------------------------------------*/
mbed_official 76:aeb1df146756 149 /* Private functions ---------------------------------------------------------*/
mbed_official 76:aeb1df146756 150
mbed_official 76:aeb1df146756 151 /** @defgroup DAC_Private_Functions
mbed_official 76:aeb1df146756 152 * @{
mbed_official 76:aeb1df146756 153 */
mbed_official 76:aeb1df146756 154
mbed_official 76:aeb1df146756 155 /** @defgroup DAC_Group1 DAC channels configuration
mbed_official 76:aeb1df146756 156 * @brief DAC channels configuration: trigger, output buffer, data format
mbed_official 76:aeb1df146756 157 *
mbed_official 76:aeb1df146756 158 @verbatim
mbed_official 76:aeb1df146756 159 ===============================================================================
mbed_official 76:aeb1df146756 160 ##### DAC channels configuration: trigger, output buffer, data format #####
mbed_official 76:aeb1df146756 161 ===============================================================================
mbed_official 76:aeb1df146756 162
mbed_official 76:aeb1df146756 163 @endverbatim
mbed_official 76:aeb1df146756 164 * @{
mbed_official 76:aeb1df146756 165 */
mbed_official 76:aeb1df146756 166
mbed_official 76:aeb1df146756 167 /**
mbed_official 76:aeb1df146756 168 * @brief Deinitializes the DAC peripheral registers to their default reset values.
mbed_official 76:aeb1df146756 169 * @param None
mbed_official 76:aeb1df146756 170 * @retval None
mbed_official 76:aeb1df146756 171 */
mbed_official 76:aeb1df146756 172 void DAC_DeInit(void)
mbed_official 76:aeb1df146756 173 {
mbed_official 76:aeb1df146756 174 /* Enable DAC reset state */
mbed_official 76:aeb1df146756 175 RCC_APB1PeriphResetCmd(RCC_APB1Periph_DAC, ENABLE);
mbed_official 76:aeb1df146756 176 /* Release DAC from reset state */
mbed_official 76:aeb1df146756 177 RCC_APB1PeriphResetCmd(RCC_APB1Periph_DAC, DISABLE);
mbed_official 76:aeb1df146756 178 }
mbed_official 76:aeb1df146756 179
mbed_official 76:aeb1df146756 180 /**
mbed_official 76:aeb1df146756 181 * @brief Initializes the DAC peripheral according to the specified parameters
mbed_official 76:aeb1df146756 182 * in the DAC_InitStruct.
mbed_official 76:aeb1df146756 183 * @param DAC_Channel: the selected DAC channel.
mbed_official 76:aeb1df146756 184 * This parameter can be:
mbed_official 76:aeb1df146756 185 * @arg DAC_Channel_1: DAC Channel1 selected
mbed_official 76:aeb1df146756 186 * @arg DAC_Channel_2: DAC Channel2 selected, applicable only for STM32F072 devices
mbed_official 76:aeb1df146756 187 * @param DAC_InitStruct: pointer to a DAC_InitTypeDef structure that contains
mbed_official 76:aeb1df146756 188 * the configuration information for the specified DAC channel.
mbed_official 76:aeb1df146756 189 * @retval None
mbed_official 76:aeb1df146756 190 */
mbed_official 76:aeb1df146756 191 void DAC_Init(uint32_t DAC_Channel, DAC_InitTypeDef* DAC_InitStruct)
mbed_official 76:aeb1df146756 192 {
mbed_official 76:aeb1df146756 193 uint32_t tmpreg1 = 0, tmpreg2 = 0;
mbed_official 76:aeb1df146756 194
mbed_official 76:aeb1df146756 195 /* Check the DAC parameters */
mbed_official 76:aeb1df146756 196 assert_param(IS_DAC_TRIGGER(DAC_InitStruct->DAC_Trigger));
mbed_official 76:aeb1df146756 197 assert_param(IS_DAC_GENERATE_WAVE(DAC_InitStruct->DAC_WaveGeneration));
mbed_official 76:aeb1df146756 198 assert_param(IS_DAC_LFSR_UNMASK_TRIANGLE_AMPLITUDE(DAC_InitStruct->DAC_LFSRUnmask_TriangleAmplitude));
mbed_official 76:aeb1df146756 199 assert_param(IS_DAC_OUTPUT_BUFFER_STATE(DAC_InitStruct->DAC_OutputBuffer));
mbed_official 76:aeb1df146756 200
mbed_official 76:aeb1df146756 201 /*---------------------------- DAC CR Configuration --------------------------*/
mbed_official 76:aeb1df146756 202 /* Get the DAC CR value */
mbed_official 76:aeb1df146756 203 tmpreg1 = DAC->CR;
mbed_official 76:aeb1df146756 204 /* Clear BOFFx, TENx, TSELx, WAVEx and MAMPx bits */
mbed_official 76:aeb1df146756 205 tmpreg1 &= ~(CR_CLEAR_MASK << DAC_Channel);
mbed_official 76:aeb1df146756 206 /* Configure for the selected DAC channel: buffer output, trigger,
mbed_official 76:aeb1df146756 207 wave generation, mask/amplitude for wave generation */
mbed_official 76:aeb1df146756 208 /* Set TSELx and TENx bits according to DAC_Trigger value */
mbed_official 76:aeb1df146756 209 /* Set WAVEx bits according to DAC_WaveGeneration value */
mbed_official 76:aeb1df146756 210 /* Set MAMPx bits according to DAC_LFSRUnmask_TriangleAmplitude value */
mbed_official 76:aeb1df146756 211 /* Set BOFFx bit according to DAC_OutputBuffer value */
mbed_official 76:aeb1df146756 212 tmpreg2 = (DAC_InitStruct->DAC_Trigger | DAC_InitStruct->DAC_WaveGeneration |
mbed_official 76:aeb1df146756 213 DAC_InitStruct->DAC_LFSRUnmask_TriangleAmplitude | \
mbed_official 76:aeb1df146756 214 DAC_InitStruct->DAC_OutputBuffer);
mbed_official 76:aeb1df146756 215 /* Calculate CR register value depending on DAC_Channel */
mbed_official 76:aeb1df146756 216 tmpreg1 |= tmpreg2 << DAC_Channel;
mbed_official 76:aeb1df146756 217 /* Write to DAC CR */
mbed_official 76:aeb1df146756 218 DAC->CR = tmpreg1;
mbed_official 76:aeb1df146756 219 }
mbed_official 76:aeb1df146756 220
mbed_official 76:aeb1df146756 221 /**
mbed_official 76:aeb1df146756 222 * @brief Fills each DAC_InitStruct member with its default value.
mbed_official 76:aeb1df146756 223 * @param DAC_InitStruct: pointer to a DAC_InitTypeDef structure which will
mbed_official 76:aeb1df146756 224 * be initialized.
mbed_official 76:aeb1df146756 225 * @retval None
mbed_official 76:aeb1df146756 226 */
mbed_official 76:aeb1df146756 227 void DAC_StructInit(DAC_InitTypeDef* DAC_InitStruct)
mbed_official 76:aeb1df146756 228 {
mbed_official 76:aeb1df146756 229 /*--------------- Reset DAC init structure parameters values -----------------*/
mbed_official 76:aeb1df146756 230 /* Initialize the DAC_Trigger member */
mbed_official 76:aeb1df146756 231 DAC_InitStruct->DAC_Trigger = DAC_Trigger_None;
mbed_official 76:aeb1df146756 232
mbed_official 76:aeb1df146756 233 /* Initialize the DAC_WaveGeneration member */
mbed_official 76:aeb1df146756 234 DAC_InitStruct->DAC_WaveGeneration = DAC_WaveGeneration_None;
mbed_official 76:aeb1df146756 235
mbed_official 76:aeb1df146756 236 /* Initialize the DAC_LFSRUnmask_TriangleAmplitude member */
mbed_official 76:aeb1df146756 237 DAC_InitStruct->DAC_LFSRUnmask_TriangleAmplitude = DAC_LFSRUnmask_Bit0;
mbed_official 76:aeb1df146756 238
mbed_official 76:aeb1df146756 239 /* Initialize the DAC_OutputBuffer member */
mbed_official 76:aeb1df146756 240 DAC_InitStruct->DAC_OutputBuffer = DAC_OutputBuffer_Enable;
mbed_official 76:aeb1df146756 241 }
mbed_official 76:aeb1df146756 242
mbed_official 76:aeb1df146756 243 /**
mbed_official 76:aeb1df146756 244 * @brief Enables or disables the specified DAC channel.
mbed_official 76:aeb1df146756 245 * @param DAC_Channel: The selected DAC channel.
mbed_official 76:aeb1df146756 246 * This parameter can be one of the following values:
mbed_official 76:aeb1df146756 247 * @arg DAC_Channel_1: DAC Channel1 selected
mbed_official 76:aeb1df146756 248 * @arg DAC_Channel_2: DAC Channel2 selected, applicable only for STM32F072 devices
mbed_official 76:aeb1df146756 249 * @param NewState: new state of the DAC channel.
mbed_official 76:aeb1df146756 250 * This parameter can be: ENABLE or DISABLE.
mbed_official 76:aeb1df146756 251 * @note When the DAC channel is enabled the trigger source can no more be modified.
mbed_official 76:aeb1df146756 252 * @retval None
mbed_official 76:aeb1df146756 253 */
mbed_official 76:aeb1df146756 254 void DAC_Cmd(uint32_t DAC_Channel, FunctionalState NewState)
mbed_official 76:aeb1df146756 255 {
mbed_official 76:aeb1df146756 256 /* Check the parameters */
mbed_official 76:aeb1df146756 257 assert_param(IS_DAC_CHANNEL(DAC_Channel));
mbed_official 76:aeb1df146756 258 assert_param(IS_FUNCTIONAL_STATE(NewState));
mbed_official 76:aeb1df146756 259
mbed_official 76:aeb1df146756 260 if (NewState != DISABLE)
mbed_official 76:aeb1df146756 261 {
mbed_official 76:aeb1df146756 262 /* Enable the selected DAC channel */
mbed_official 76:aeb1df146756 263 DAC->CR |= (DAC_CR_EN1 << DAC_Channel);
mbed_official 76:aeb1df146756 264 }
mbed_official 76:aeb1df146756 265 else
mbed_official 76:aeb1df146756 266 {
mbed_official 76:aeb1df146756 267 /* Disable the selected DAC channel */
mbed_official 76:aeb1df146756 268 DAC->CR &= (~(DAC_CR_EN1 << DAC_Channel));
mbed_official 76:aeb1df146756 269 }
mbed_official 76:aeb1df146756 270 }
mbed_official 76:aeb1df146756 271
mbed_official 76:aeb1df146756 272 /**
mbed_official 76:aeb1df146756 273 * @brief Enables or disables the selected DAC channel software trigger.
mbed_official 76:aeb1df146756 274 * @param DAC_Channel: The selected DAC channel.
mbed_official 76:aeb1df146756 275 * This parameter can be one of the following values:
mbed_official 76:aeb1df146756 276 * @arg DAC_Channel_1: DAC Channel1 selected
mbed_official 76:aeb1df146756 277 * @arg DAC_Channel_2: DAC Channel2 selected, applicable only for STM32F072 devices
mbed_official 76:aeb1df146756 278 * @param NewState: new state of the selected DAC channel software trigger.
mbed_official 76:aeb1df146756 279 * This parameter can be: ENABLE or DISABLE.
mbed_official 76:aeb1df146756 280 * @retval None
mbed_official 76:aeb1df146756 281 */
mbed_official 76:aeb1df146756 282 void DAC_SoftwareTriggerCmd(uint32_t DAC_Channel, FunctionalState NewState)
mbed_official 76:aeb1df146756 283 {
mbed_official 76:aeb1df146756 284 /* Check the parameters */
mbed_official 76:aeb1df146756 285 assert_param(IS_DAC_CHANNEL(DAC_Channel));
mbed_official 76:aeb1df146756 286 assert_param(IS_FUNCTIONAL_STATE(NewState));
mbed_official 76:aeb1df146756 287
mbed_official 76:aeb1df146756 288 if (NewState != DISABLE)
mbed_official 76:aeb1df146756 289 {
mbed_official 76:aeb1df146756 290 /* Enable software trigger for the selected DAC channel */
mbed_official 76:aeb1df146756 291 DAC->SWTRIGR |= (uint32_t)DAC_SWTRIGR_SWTRIG1 << (DAC_Channel >> 4);
mbed_official 76:aeb1df146756 292 }
mbed_official 76:aeb1df146756 293 else
mbed_official 76:aeb1df146756 294 {
mbed_official 76:aeb1df146756 295 /* Disable software trigger for the selected DAC channel */
mbed_official 76:aeb1df146756 296 DAC->SWTRIGR &= ~((uint32_t)DAC_SWTRIGR_SWTRIG1 << (DAC_Channel >> 4));
mbed_official 76:aeb1df146756 297 }
mbed_official 76:aeb1df146756 298 }
mbed_official 76:aeb1df146756 299
mbed_official 76:aeb1df146756 300 /**
mbed_official 76:aeb1df146756 301 * @brief Enables or disables simultaneously the two DAC channels software triggers.
mbed_official 76:aeb1df146756 302 * This function is applicable only for STM32F072 devices.
mbed_official 76:aeb1df146756 303 * @param NewState: new state of the DAC channels software triggers.
mbed_official 76:aeb1df146756 304 * This parameter can be: ENABLE or DISABLE.
mbed_official 76:aeb1df146756 305 * @retval None
mbed_official 76:aeb1df146756 306 */
mbed_official 76:aeb1df146756 307 void DAC_DualSoftwareTriggerCmd(FunctionalState NewState)
mbed_official 76:aeb1df146756 308 {
mbed_official 76:aeb1df146756 309 /* Check the parameters */
mbed_official 76:aeb1df146756 310 assert_param(IS_FUNCTIONAL_STATE(NewState));
mbed_official 76:aeb1df146756 311
mbed_official 76:aeb1df146756 312 if (NewState != DISABLE)
mbed_official 76:aeb1df146756 313 {
mbed_official 76:aeb1df146756 314 /* Enable software trigger for both DAC channels */
mbed_official 76:aeb1df146756 315 DAC->SWTRIGR |= DUAL_SWTRIG_SET;
mbed_official 76:aeb1df146756 316 }
mbed_official 76:aeb1df146756 317 else
mbed_official 76:aeb1df146756 318 {
mbed_official 76:aeb1df146756 319 /* Disable software trigger for both DAC channels */
mbed_official 76:aeb1df146756 320 DAC->SWTRIGR &= DUAL_SWTRIG_RESET;
mbed_official 76:aeb1df146756 321 }
mbed_official 76:aeb1df146756 322 }
mbed_official 76:aeb1df146756 323
mbed_official 76:aeb1df146756 324 /**
mbed_official 76:aeb1df146756 325 * @brief Enables or disables the selected DAC channel wave generation.
mbed_official 76:aeb1df146756 326 * This function is applicable only for STM32F072 devices.
mbed_official 76:aeb1df146756 327 * @param DAC_Channel: The selected DAC channel.
mbed_official 76:aeb1df146756 328 * This parameter can be:
mbed_official 76:aeb1df146756 329 * @arg DAC_Channel_1: DAC Channel1 selected
mbed_official 76:aeb1df146756 330 * @arg DAC_Channel_2: DAC Channel2 selected
mbed_official 76:aeb1df146756 331 * @param DAC_Wave: specifies the wave type to enable or disable.
mbed_official 76:aeb1df146756 332 * This parameter can be:
mbed_official 76:aeb1df146756 333 * @arg DAC_Wave_Noise: noise wave generation
mbed_official 76:aeb1df146756 334 * @arg DAC_Wave_Triangle: triangle wave generation
mbed_official 76:aeb1df146756 335 * @param NewState: new state of the selected DAC channel wave generation.
mbed_official 76:aeb1df146756 336 * This parameter can be: ENABLE or DISABLE.
mbed_official 76:aeb1df146756 337 * @retval None
mbed_official 76:aeb1df146756 338 */
mbed_official 76:aeb1df146756 339 void DAC_WaveGenerationCmd(uint32_t DAC_Channel, uint32_t DAC_Wave, FunctionalState NewState)
mbed_official 76:aeb1df146756 340 {
mbed_official 76:aeb1df146756 341 /* Check the parameters */
mbed_official 76:aeb1df146756 342 assert_param(IS_DAC_CHANNEL(DAC_Channel));
mbed_official 76:aeb1df146756 343 assert_param(IS_DAC_WAVE(DAC_Wave));
mbed_official 76:aeb1df146756 344 assert_param(IS_FUNCTIONAL_STATE(NewState));
mbed_official 76:aeb1df146756 345
mbed_official 76:aeb1df146756 346 if (NewState != DISABLE)
mbed_official 76:aeb1df146756 347 {
mbed_official 76:aeb1df146756 348 /* Enable the selected wave generation for the selected DAC channel */
mbed_official 76:aeb1df146756 349 DAC->CR |= DAC_Wave << DAC_Channel;
mbed_official 76:aeb1df146756 350 }
mbed_official 76:aeb1df146756 351 else
mbed_official 76:aeb1df146756 352 {
mbed_official 76:aeb1df146756 353 /* Disable the selected wave generation for the selected DAC channel */
mbed_official 76:aeb1df146756 354 DAC->CR &= ~(DAC_Wave << DAC_Channel);
mbed_official 76:aeb1df146756 355 }
mbed_official 76:aeb1df146756 356 }
mbed_official 76:aeb1df146756 357
mbed_official 76:aeb1df146756 358 /**
mbed_official 76:aeb1df146756 359 * @brief Set the specified data holding register value for DAC channel1.
mbed_official 76:aeb1df146756 360 * @param DAC_Align: Specifies the data alignment for DAC channel1.
mbed_official 76:aeb1df146756 361 * This parameter can be one of the following values:
mbed_official 76:aeb1df146756 362 * @arg DAC_Align_8b_R: 8bit right data alignment selected
mbed_official 76:aeb1df146756 363 * @arg DAC_Align_12b_L: 12bit left data alignment selected
mbed_official 76:aeb1df146756 364 * @arg DAC_Align_12b_R: 12bit right data alignment selected
mbed_official 76:aeb1df146756 365 * @param Data: Data to be loaded in the selected data holding register.
mbed_official 76:aeb1df146756 366 * @retval None
mbed_official 76:aeb1df146756 367 */
mbed_official 76:aeb1df146756 368 void DAC_SetChannel1Data(uint32_t DAC_Align, uint16_t Data)
mbed_official 76:aeb1df146756 369 {
mbed_official 76:aeb1df146756 370 __IO uint32_t tmp = 0;
mbed_official 76:aeb1df146756 371
mbed_official 76:aeb1df146756 372 /* Check the parameters */
mbed_official 76:aeb1df146756 373 assert_param(IS_DAC_ALIGN(DAC_Align));
mbed_official 76:aeb1df146756 374 assert_param(IS_DAC_DATA(Data));
mbed_official 76:aeb1df146756 375
mbed_official 76:aeb1df146756 376 tmp = (uint32_t)DAC_BASE;
mbed_official 76:aeb1df146756 377 tmp += DHR12R1_OFFSET + DAC_Align;
mbed_official 76:aeb1df146756 378
mbed_official 76:aeb1df146756 379 /* Set the DAC channel1 selected data holding register */
mbed_official 76:aeb1df146756 380 *(__IO uint32_t *) tmp = Data;
mbed_official 76:aeb1df146756 381 }
mbed_official 76:aeb1df146756 382
mbed_official 76:aeb1df146756 383 /**
mbed_official 76:aeb1df146756 384 * @brief Sets the specified data holding register value for DAC channel2.
mbed_official 76:aeb1df146756 385 * This function is applicable only for STM32F072 devices.
mbed_official 76:aeb1df146756 386 * @param DAC_Align: Specifies the data alignment for DAC channel2.
mbed_official 76:aeb1df146756 387 * This parameter can be:
mbed_official 76:aeb1df146756 388 * @arg DAC_Align_8b_R: 8bit right data alignment selected
mbed_official 76:aeb1df146756 389 * @arg DAC_Align_12b_L: 12bit left data alignment selected
mbed_official 76:aeb1df146756 390 * @arg DAC_Align_12b_R: 12bit right data alignment selected
mbed_official 76:aeb1df146756 391 * @param Data: Data to be loaded in the selected data holding register.
mbed_official 76:aeb1df146756 392 * @retval None
mbed_official 76:aeb1df146756 393 */
mbed_official 76:aeb1df146756 394 void DAC_SetChannel2Data(uint32_t DAC_Align, uint16_t Data)
mbed_official 76:aeb1df146756 395 {
mbed_official 76:aeb1df146756 396 __IO uint32_t tmp = 0;
mbed_official 76:aeb1df146756 397
mbed_official 76:aeb1df146756 398 /* Check the parameters */
mbed_official 76:aeb1df146756 399 assert_param(IS_DAC_ALIGN(DAC_Align));
mbed_official 76:aeb1df146756 400 assert_param(IS_DAC_DATA(Data));
mbed_official 76:aeb1df146756 401
mbed_official 76:aeb1df146756 402 tmp = (uint32_t)DAC_BASE;
mbed_official 76:aeb1df146756 403 tmp += DHR12R2_OFFSET + DAC_Align;
mbed_official 76:aeb1df146756 404
mbed_official 76:aeb1df146756 405 /* Set the DAC channel2 selected data holding register */
mbed_official 76:aeb1df146756 406 *(__IO uint32_t *)tmp = Data;
mbed_official 76:aeb1df146756 407 }
mbed_official 76:aeb1df146756 408
mbed_official 76:aeb1df146756 409 /**
mbed_official 76:aeb1df146756 410 * @brief Sets the specified data holding register value for dual channel DAC.
mbed_official 76:aeb1df146756 411 * This function is applicable only for STM32F072 devices.
mbed_official 76:aeb1df146756 412 * @param DAC_Align: Specifies the data alignment for dual channel DAC.
mbed_official 76:aeb1df146756 413 * This parameter can be:
mbed_official 76:aeb1df146756 414 * @arg DAC_Align_8b_R: 8bit right data alignment selected
mbed_official 76:aeb1df146756 415 * @arg DAC_Align_12b_L: 12bit left data alignment selected
mbed_official 76:aeb1df146756 416 * @arg DAC_Align_12b_R: 12bit right data alignment selected
mbed_official 76:aeb1df146756 417 * @param Data2: Data for DAC Channel2 to be loaded in the selected data holding register.
mbed_official 76:aeb1df146756 418 * @param Data1: Data for DAC Channel1 to be loaded in the selected data holding register.
mbed_official 76:aeb1df146756 419 * @note In dual mode, a unique register access is required to write in both
mbed_official 76:aeb1df146756 420 * DAC channels at the same time.
mbed_official 76:aeb1df146756 421 * @retval None
mbed_official 76:aeb1df146756 422 */
mbed_official 76:aeb1df146756 423 void DAC_SetDualChannelData(uint32_t DAC_Align, uint16_t Data2, uint16_t Data1)
mbed_official 76:aeb1df146756 424 {
mbed_official 76:aeb1df146756 425 uint32_t data = 0, tmp = 0;
mbed_official 76:aeb1df146756 426
mbed_official 76:aeb1df146756 427 /* Check the parameters */
mbed_official 76:aeb1df146756 428 assert_param(IS_DAC_ALIGN(DAC_Align));
mbed_official 76:aeb1df146756 429 assert_param(IS_DAC_DATA(Data1));
mbed_official 76:aeb1df146756 430 assert_param(IS_DAC_DATA(Data2));
mbed_official 76:aeb1df146756 431
mbed_official 76:aeb1df146756 432 /* Calculate and set dual DAC data holding register value */
mbed_official 76:aeb1df146756 433 if (DAC_Align == DAC_Align_8b_R)
mbed_official 76:aeb1df146756 434 {
mbed_official 76:aeb1df146756 435 data = ((uint32_t)Data2 << 8) | Data1;
mbed_official 76:aeb1df146756 436 }
mbed_official 76:aeb1df146756 437 else
mbed_official 76:aeb1df146756 438 {
mbed_official 76:aeb1df146756 439 data = ((uint32_t)Data2 << 16) | Data1;
mbed_official 76:aeb1df146756 440 }
mbed_official 76:aeb1df146756 441
mbed_official 76:aeb1df146756 442 tmp = (uint32_t)DAC_BASE;
mbed_official 76:aeb1df146756 443 tmp += DHR12RD_OFFSET + DAC_Align;
mbed_official 76:aeb1df146756 444
mbed_official 76:aeb1df146756 445 /* Set the dual DAC selected data holding register */
mbed_official 76:aeb1df146756 446 *(__IO uint32_t *)tmp = data;
mbed_official 76:aeb1df146756 447 }
mbed_official 76:aeb1df146756 448
mbed_official 76:aeb1df146756 449 /**
mbed_official 76:aeb1df146756 450 * @brief Returns the last data output value of the selected DAC channel.
mbed_official 76:aeb1df146756 451 * @param DAC_Channel: The selected DAC channel.
mbed_official 76:aeb1df146756 452 * This parameter can be one of the following values:
mbed_official 76:aeb1df146756 453 * @arg DAC_Channel_1: DAC Channel1 selected
mbed_official 76:aeb1df146756 454 * @arg DAC_Channel_2: DAC Channel2 selected, applicable only for STM32F072 devices
mbed_official 76:aeb1df146756 455 * @retval The selected DAC channel data output value.
mbed_official 76:aeb1df146756 456 */
mbed_official 76:aeb1df146756 457 uint16_t DAC_GetDataOutputValue(uint32_t DAC_Channel)
mbed_official 76:aeb1df146756 458 {
mbed_official 76:aeb1df146756 459 __IO uint32_t tmp = 0;
mbed_official 76:aeb1df146756 460
mbed_official 76:aeb1df146756 461 /* Check the parameters */
mbed_official 76:aeb1df146756 462 assert_param(IS_DAC_CHANNEL(DAC_Channel));
mbed_official 76:aeb1df146756 463
mbed_official 76:aeb1df146756 464 tmp = (uint32_t) DAC_BASE ;
mbed_official 76:aeb1df146756 465 tmp += DOR_OFFSET + ((uint32_t)DAC_Channel >> 2);
mbed_official 76:aeb1df146756 466
mbed_official 76:aeb1df146756 467 /* Returns the DAC channel data output register value */
mbed_official 76:aeb1df146756 468 return (uint16_t) (*(__IO uint32_t*) tmp);
mbed_official 76:aeb1df146756 469 }
mbed_official 76:aeb1df146756 470
mbed_official 76:aeb1df146756 471 /**
mbed_official 76:aeb1df146756 472 * @}
mbed_official 76:aeb1df146756 473 */
mbed_official 76:aeb1df146756 474
mbed_official 76:aeb1df146756 475 /** @defgroup DAC_Group2 DMA management functions
mbed_official 76:aeb1df146756 476 * @brief DMA management functions
mbed_official 76:aeb1df146756 477 *
mbed_official 76:aeb1df146756 478 @verbatim
mbed_official 76:aeb1df146756 479 ===============================================================================
mbed_official 76:aeb1df146756 480 ##### DMA management functions #####
mbed_official 76:aeb1df146756 481 ===============================================================================
mbed_official 76:aeb1df146756 482
mbed_official 76:aeb1df146756 483 @endverbatim
mbed_official 76:aeb1df146756 484 * @{
mbed_official 76:aeb1df146756 485 */
mbed_official 76:aeb1df146756 486
mbed_official 76:aeb1df146756 487 /**
mbed_official 76:aeb1df146756 488 * @brief Enables or disables the specified DAC channel DMA request.
mbed_official 76:aeb1df146756 489 * When enabled DMA1 is generated when an external trigger (EXTI Line9,
mbed_official 76:aeb1df146756 490 * TIM2, TIM3, TIM6 or TIM15 but not a software trigger) occurs
mbed_official 76:aeb1df146756 491 * @param DAC_Channel: the selected DAC channel.
mbed_official 76:aeb1df146756 492 * This parameter can be one of the following values:
mbed_official 76:aeb1df146756 493 * @arg DAC_Channel_1: DAC Channel1 selected
mbed_official 76:aeb1df146756 494 * @arg DAC_Channel_2: DAC Channel2 selected, applicable only for STM32F072 devices
mbed_official 76:aeb1df146756 495 * @param NewState: new state of the selected DAC channel DMA request.
mbed_official 76:aeb1df146756 496 * This parameter can be: ENABLE or DISABLE.
mbed_official 76:aeb1df146756 497 * @note The DAC channel1 is mapped on DMA1 channel3 which must be already configured.
mbed_official 76:aeb1df146756 498 * @note The DAC channel2 is mapped on DMA1 channel4 which must be already configured.
mbed_official 76:aeb1df146756 499 * @retval None
mbed_official 76:aeb1df146756 500 */
mbed_official 76:aeb1df146756 501 void DAC_DMACmd(uint32_t DAC_Channel, FunctionalState NewState)
mbed_official 76:aeb1df146756 502 {
mbed_official 76:aeb1df146756 503 /* Check the parameters */
mbed_official 76:aeb1df146756 504 assert_param(IS_DAC_CHANNEL(DAC_Channel));
mbed_official 76:aeb1df146756 505 assert_param(IS_FUNCTIONAL_STATE(NewState));
mbed_official 76:aeb1df146756 506
mbed_official 76:aeb1df146756 507 if (NewState != DISABLE)
mbed_official 76:aeb1df146756 508 {
mbed_official 76:aeb1df146756 509 /* Enable the selected DAC channel DMA request */
mbed_official 76:aeb1df146756 510 DAC->CR |= (DAC_CR_DMAEN1 << DAC_Channel);
mbed_official 76:aeb1df146756 511 }
mbed_official 76:aeb1df146756 512 else
mbed_official 76:aeb1df146756 513 {
mbed_official 76:aeb1df146756 514 /* Disable the selected DAC channel DMA request */
mbed_official 76:aeb1df146756 515 DAC->CR &= (~(DAC_CR_DMAEN1 << DAC_Channel));
mbed_official 76:aeb1df146756 516 }
mbed_official 76:aeb1df146756 517 }
mbed_official 76:aeb1df146756 518
mbed_official 76:aeb1df146756 519 /**
mbed_official 76:aeb1df146756 520 * @}
mbed_official 76:aeb1df146756 521 */
mbed_official 76:aeb1df146756 522
mbed_official 76:aeb1df146756 523 /** @defgroup DAC_Group3 Interrupts and flags management functions
mbed_official 76:aeb1df146756 524 * @brief Interrupts and flags management functions
mbed_official 76:aeb1df146756 525 *
mbed_official 76:aeb1df146756 526 @verbatim
mbed_official 76:aeb1df146756 527 ===============================================================================
mbed_official 76:aeb1df146756 528 ##### Interrupts and flags management functions #####
mbed_official 76:aeb1df146756 529 ===============================================================================
mbed_official 76:aeb1df146756 530
mbed_official 76:aeb1df146756 531 @endverbatim
mbed_official 76:aeb1df146756 532 * @{
mbed_official 76:aeb1df146756 533 */
mbed_official 76:aeb1df146756 534
mbed_official 76:aeb1df146756 535 /**
mbed_official 76:aeb1df146756 536 * @brief Enables or disables the specified DAC interrupts.
mbed_official 76:aeb1df146756 537 * @param DAC_Channel: The selected DAC channel.
mbed_official 76:aeb1df146756 538 * This parameter can be:
mbed_official 76:aeb1df146756 539 * @arg DAC_Channel_1: DAC Channel1 selected
mbed_official 76:aeb1df146756 540 * @arg DAC_Channel_2: DAC Channel2 selected, applicable only for STM32F072 devices
mbed_official 76:aeb1df146756 541 * @param DAC_IT: specifies the DAC interrupt sources to be enabled or disabled.
mbed_official 76:aeb1df146756 542 * This parameter can be the following values:
mbed_official 76:aeb1df146756 543 * @arg DAC_IT_DMAUDR: DMA underrun interrupt mask
mbed_official 76:aeb1df146756 544 * @note The DMA underrun occurs when a second external trigger arrives before the
mbed_official 76:aeb1df146756 545 * acknowledgement for the first external trigger is received (first request).
mbed_official 76:aeb1df146756 546 * @param NewState: new state of the specified DAC interrupts.
mbed_official 76:aeb1df146756 547 * This parameter can be: ENABLE or DISABLE.
mbed_official 76:aeb1df146756 548 * @retval None
mbed_official 76:aeb1df146756 549 */
mbed_official 76:aeb1df146756 550 void DAC_ITConfig(uint32_t DAC_Channel, uint32_t DAC_IT, FunctionalState NewState)
mbed_official 76:aeb1df146756 551 {
mbed_official 76:aeb1df146756 552 /* Check the parameters */
mbed_official 76:aeb1df146756 553 assert_param(IS_DAC_CHANNEL(DAC_Channel));
mbed_official 76:aeb1df146756 554 assert_param(IS_FUNCTIONAL_STATE(NewState));
mbed_official 76:aeb1df146756 555 assert_param(IS_DAC_IT(DAC_IT));
mbed_official 76:aeb1df146756 556
mbed_official 76:aeb1df146756 557 if (NewState != DISABLE)
mbed_official 76:aeb1df146756 558 {
mbed_official 76:aeb1df146756 559 /* Enable the selected DAC interrupts */
mbed_official 76:aeb1df146756 560 DAC->CR |= (DAC_IT << DAC_Channel);
mbed_official 76:aeb1df146756 561 }
mbed_official 76:aeb1df146756 562 else
mbed_official 76:aeb1df146756 563 {
mbed_official 76:aeb1df146756 564 /* Disable the selected DAC interrupts */
mbed_official 76:aeb1df146756 565 DAC->CR &= (~(uint32_t)(DAC_IT << DAC_Channel));
mbed_official 76:aeb1df146756 566 }
mbed_official 76:aeb1df146756 567 }
mbed_official 76:aeb1df146756 568
mbed_official 76:aeb1df146756 569 /**
mbed_official 76:aeb1df146756 570 * @brief Checks whether the specified DAC flag is set or not.
mbed_official 76:aeb1df146756 571 * @param DAC_Channel: The selected DAC channel.
mbed_official 76:aeb1df146756 572 * This parameter can be one of the following values:
mbed_official 76:aeb1df146756 573 * @arg DAC_Channel_1: DAC Channel1 selected
mbed_official 76:aeb1df146756 574 * @arg DAC_Channel_2: DAC Channel2 selected, applicable only for STM32F072 devices
mbed_official 76:aeb1df146756 575 * @param DAC_FLAG: specifies the flag to check.
mbed_official 76:aeb1df146756 576 * This parameter can be only of the following value:
mbed_official 76:aeb1df146756 577 * @arg DAC_FLAG_DMAUDR: DMA underrun flag
mbed_official 76:aeb1df146756 578 * @note The DMA underrun occurs when a second external trigger arrives before the
mbed_official 76:aeb1df146756 579 * acknowledgement for the first external trigger is received (first request).
mbed_official 76:aeb1df146756 580 * @retval The new state of DAC_FLAG (SET or RESET).
mbed_official 76:aeb1df146756 581 */
mbed_official 76:aeb1df146756 582 FlagStatus DAC_GetFlagStatus(uint32_t DAC_Channel, uint32_t DAC_FLAG)
mbed_official 76:aeb1df146756 583 {
mbed_official 76:aeb1df146756 584 FlagStatus bitstatus = RESET;
mbed_official 76:aeb1df146756 585 /* Check the parameters */
mbed_official 76:aeb1df146756 586 assert_param(IS_DAC_CHANNEL(DAC_Channel));
mbed_official 76:aeb1df146756 587 assert_param(IS_DAC_FLAG(DAC_FLAG));
mbed_official 76:aeb1df146756 588
mbed_official 76:aeb1df146756 589 /* Check the status of the specified DAC flag */
mbed_official 76:aeb1df146756 590 if ((DAC->SR & (DAC_FLAG << DAC_Channel)) != (uint8_t)RESET)
mbed_official 76:aeb1df146756 591 {
mbed_official 76:aeb1df146756 592 /* DAC_FLAG is set */
mbed_official 76:aeb1df146756 593 bitstatus = SET;
mbed_official 76:aeb1df146756 594 }
mbed_official 76:aeb1df146756 595 else
mbed_official 76:aeb1df146756 596 {
mbed_official 76:aeb1df146756 597 /* DAC_FLAG is reset */
mbed_official 76:aeb1df146756 598 bitstatus = RESET;
mbed_official 76:aeb1df146756 599 }
mbed_official 76:aeb1df146756 600 /* Return the DAC_FLAG status */
mbed_official 76:aeb1df146756 601 return bitstatus;
mbed_official 76:aeb1df146756 602 }
mbed_official 76:aeb1df146756 603
mbed_official 76:aeb1df146756 604 /**
mbed_official 76:aeb1df146756 605 * @brief Clears the DAC channel's pending flags.
mbed_official 76:aeb1df146756 606 * @param DAC_Channel: The selected DAC channel.
mbed_official 76:aeb1df146756 607 * This parameter can be one of the following values:
mbed_official 76:aeb1df146756 608 * @arg DAC_Channel_1: DAC Channel1 selected
mbed_official 76:aeb1df146756 609 * @arg DAC_Channel_2: DAC Channel2 selected, applicable only for STM32F072 devices
mbed_official 76:aeb1df146756 610 * @param DAC_FLAG: specifies the flag to clear.
mbed_official 76:aeb1df146756 611 * This parameter can be of the following value:
mbed_official 76:aeb1df146756 612 * @arg DAC_FLAG_DMAUDR: DMA underrun flag
mbed_official 76:aeb1df146756 613 * @retval None
mbed_official 76:aeb1df146756 614 */
mbed_official 76:aeb1df146756 615 void DAC_ClearFlag(uint32_t DAC_Channel, uint32_t DAC_FLAG)
mbed_official 76:aeb1df146756 616 {
mbed_official 76:aeb1df146756 617 /* Check the parameters */
mbed_official 76:aeb1df146756 618 assert_param(IS_DAC_CHANNEL(DAC_Channel));
mbed_official 76:aeb1df146756 619 assert_param(IS_DAC_FLAG(DAC_FLAG));
mbed_official 76:aeb1df146756 620
mbed_official 76:aeb1df146756 621 /* Clear the selected DAC flags */
mbed_official 76:aeb1df146756 622 DAC->SR = (DAC_FLAG << DAC_Channel);
mbed_official 76:aeb1df146756 623 }
mbed_official 76:aeb1df146756 624
mbed_official 76:aeb1df146756 625 /**
mbed_official 76:aeb1df146756 626 * @brief Checks whether the specified DAC interrupt has occurred or not.
mbed_official 76:aeb1df146756 627 * @param DAC_Channel: The selected DAC channel.
mbed_official 76:aeb1df146756 628 * This parameter can be one of the following values:
mbed_official 76:aeb1df146756 629 * @arg DAC_Channel_1: DAC Channel1 selected
mbed_official 76:aeb1df146756 630 * @arg DAC_Channel_2: DAC Channel2 selected, applicable only for STM32F072 devices
mbed_official 76:aeb1df146756 631 * @param DAC_IT: specifies the DAC interrupt source to check.
mbed_official 76:aeb1df146756 632 * This parameter can be the following values:
mbed_official 76:aeb1df146756 633 * @arg DAC_IT_DMAUDR: DMA underrun interrupt mask
mbed_official 76:aeb1df146756 634 * @note The DMA underrun occurs when a second external trigger arrives before the
mbed_official 76:aeb1df146756 635 * acknowledgement for the first external trigger is received (first request).
mbed_official 76:aeb1df146756 636 * @retval The new state of DAC_IT (SET or RESET).
mbed_official 76:aeb1df146756 637 */
mbed_official 76:aeb1df146756 638 ITStatus DAC_GetITStatus(uint32_t DAC_Channel, uint32_t DAC_IT)
mbed_official 76:aeb1df146756 639 {
mbed_official 76:aeb1df146756 640 ITStatus bitstatus = RESET;
mbed_official 76:aeb1df146756 641 uint32_t enablestatus = 0;
mbed_official 76:aeb1df146756 642
mbed_official 76:aeb1df146756 643 /* Check the parameters */
mbed_official 76:aeb1df146756 644 assert_param(IS_DAC_CHANNEL(DAC_Channel));
mbed_official 76:aeb1df146756 645 assert_param(IS_DAC_IT(DAC_IT));
mbed_official 76:aeb1df146756 646
mbed_official 76:aeb1df146756 647 /* Get the DAC_IT enable bit status */
mbed_official 76:aeb1df146756 648 enablestatus = (DAC->CR & (DAC_IT << DAC_Channel)) ;
mbed_official 76:aeb1df146756 649
mbed_official 76:aeb1df146756 650 /* Check the status of the specified DAC interrupt */
mbed_official 76:aeb1df146756 651 if (((DAC->SR & (DAC_IT << DAC_Channel)) != (uint32_t)RESET) && enablestatus)
mbed_official 76:aeb1df146756 652 {
mbed_official 76:aeb1df146756 653 /* DAC_IT is set */
mbed_official 76:aeb1df146756 654 bitstatus = SET;
mbed_official 76:aeb1df146756 655 }
mbed_official 76:aeb1df146756 656 else
mbed_official 76:aeb1df146756 657 {
mbed_official 76:aeb1df146756 658 /* DAC_IT is reset */
mbed_official 76:aeb1df146756 659 bitstatus = RESET;
mbed_official 76:aeb1df146756 660 }
mbed_official 76:aeb1df146756 661 /* Return the DAC_IT status */
mbed_official 76:aeb1df146756 662 return bitstatus;
mbed_official 76:aeb1df146756 663 }
mbed_official 76:aeb1df146756 664
mbed_official 76:aeb1df146756 665 /**
mbed_official 76:aeb1df146756 666 * @brief Clears the DAC channel's interrupt pending bits.
mbed_official 76:aeb1df146756 667 * @param DAC_Channel: The selected DAC channel.
mbed_official 76:aeb1df146756 668 * This parameter can be one of the following values:
mbed_official 76:aeb1df146756 669 * @arg DAC_Channel_1: DAC Channel1 selected
mbed_official 76:aeb1df146756 670 * @arg DAC_Channel_2: DAC Channel2 selected, applicable only for STM32F072 devices
mbed_official 76:aeb1df146756 671 * @param DAC_IT: specifies the DAC interrupt pending bit to clear.
mbed_official 76:aeb1df146756 672 * This parameter can be the following values:
mbed_official 76:aeb1df146756 673 * @arg DAC_IT_DMAUDR: DMA underrun interrupt mask
mbed_official 76:aeb1df146756 674 * @retval None
mbed_official 76:aeb1df146756 675 */
mbed_official 76:aeb1df146756 676 void DAC_ClearITPendingBit(uint32_t DAC_Channel, uint32_t DAC_IT)
mbed_official 76:aeb1df146756 677 {
mbed_official 76:aeb1df146756 678 /* Check the parameters */
mbed_official 76:aeb1df146756 679 assert_param(IS_DAC_CHANNEL(DAC_Channel));
mbed_official 76:aeb1df146756 680 assert_param(IS_DAC_IT(DAC_IT));
mbed_official 76:aeb1df146756 681
mbed_official 76:aeb1df146756 682 /* Clear the selected DAC interrupt pending bits */
mbed_official 76:aeb1df146756 683 DAC->SR = (DAC_IT << DAC_Channel);
mbed_official 76:aeb1df146756 684 }
mbed_official 76:aeb1df146756 685
mbed_official 76:aeb1df146756 686 /**
mbed_official 76:aeb1df146756 687 * @}
mbed_official 76:aeb1df146756 688 */
mbed_official 76:aeb1df146756 689
mbed_official 76:aeb1df146756 690 /**
mbed_official 76:aeb1df146756 691 * @}
mbed_official 76:aeb1df146756 692 */
mbed_official 76:aeb1df146756 693
mbed_official 76:aeb1df146756 694 /**
mbed_official 76:aeb1df146756 695 * @}
mbed_official 76:aeb1df146756 696 */
mbed_official 76:aeb1df146756 697
mbed_official 76:aeb1df146756 698 /**
mbed_official 76:aeb1df146756 699 * @}
mbed_official 76:aeb1df146756 700 */
mbed_official 76:aeb1df146756 701
mbed_official 76:aeb1df146756 702 /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/