Abdessamad El Abbassi / mbed-src-temp

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targets/cmsis/TARGET_STM/TARGET_NUCLEO_L152RE/stm32l1xx_dac.c@106:ced8cbb51063, 2014-02-26 (annotated)

Committer:
mbed_official
Date:
Wed Feb 26 09:45:12 2014 +0000
Revision:
106:ced8cbb51063
Parent:
80:66393a7b209d 
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 stm32l1xx_dac.c
mbed_official 76:aeb1df146756 4 * @author MCD Application Team
mbed_official 80:66393a7b209d 5 * @version V1.3.0
mbed_official 80:66393a7b209d 6 * @date 31-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 * + DAC channels configuration: trigger, output buffer, data format
mbed_official 76:aeb1df146756 10 * + DMA management
mbed_official 76:aeb1df146756 11 * + Interrupts and flags management
mbed_official 76:aeb1df146756 12
mbed_official 76:aeb1df146756 13 * @verbatim
mbed_official 76:aeb1df146756 14 *
mbed_official 76:aeb1df146756 15 ===============================================================================
mbed_official 76:aeb1df146756 16 ##### DAC Peripheral features #####
mbed_official 76:aeb1df146756 17 ===============================================================================
mbed_official 76:aeb1df146756 18 [..] The device integrates two 12-bit Digital Analog Converters that can
mbed_official 76:aeb1df146756 19 be used independently or simultaneously (dual mode):
mbed_official 76:aeb1df146756 20 (#) DAC channel1 with DAC_OUT1 (PA4) as output.
mbed_official 76:aeb1df146756 21 (#) DAC channel2 with DAC_OUT2 (PA5) as output.
mbed_official 76:aeb1df146756 22
mbed_official 76:aeb1df146756 23 [..] Digital to Analog conversion can be non-triggered using DAC_Trigger_None
mbed_official 76:aeb1df146756 24 and DAC_OUT1/DAC_OUT2 is available once writing to DHRx register using
mbed_official 76:aeb1df146756 25 DAC_SetChannel1Data()/DAC_SetChannel2Data.
mbed_official 76:aeb1df146756 26
mbed_official 76:aeb1df146756 27 [..] Digital to Analog conversion can be triggered by:
mbed_official 76:aeb1df146756 28 (#) External event: EXTI Line 9 (any GPIOx_Pin9) using DAC_Trigger_Ext_IT9.
mbed_official 76:aeb1df146756 29 The used pin (GPIOx_Pin9) must be configured in input mode.
mbed_official 76:aeb1df146756 30 (#) Timers TRGO: TIM2, TIM4, TIM6, TIM7 and TIM9
mbed_official 76:aeb1df146756 31 (DAC_Trigger_T2_TRGO, DAC_Trigger_T4_TRGO...).
mbed_official 76:aeb1df146756 32 The timer TRGO event should be selected using TIM_SelectOutputTrigger()
mbed_official 76:aeb1df146756 33 (#) Software using DAC_Trigger_Software.
mbed_official 76:aeb1df146756 34
mbed_official 76:aeb1df146756 35 [..] Each DAC channel integrates an output buffer that can be used to
mbed_official 76:aeb1df146756 36 reduce the output impedance, and to drive external loads directly
mbed_official 76:aeb1df146756 37 without having to add an external operational amplifier.
mbed_official 76:aeb1df146756 38 To enable, the output buffer use
mbed_official 76:aeb1df146756 39 DAC_InitStructure.DAC_OutputBuffer = DAC_OutputBuffer_Enable;
mbed_official 76:aeb1df146756 40
mbed_official 76:aeb1df146756 41 [..] Refer to the device datasheet for more details about output impedance
mbed_official 76:aeb1df146756 42 value with and without output buffer.
mbed_official 76:aeb1df146756 43
mbed_official 76:aeb1df146756 44 [..] Both DAC channels can be used to generate:
mbed_official 76:aeb1df146756 45 (#) Noise wave using DAC_WaveGeneration_Noise
mbed_official 76:aeb1df146756 46 (#) Triangle wave using DAC_WaveGeneration_Triangle
mbed_official 76:aeb1df146756 47
mbed_official 76:aeb1df146756 48 [..] Wave generation can be disabled using DAC_WaveGeneration_None.
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 (+) DAC APB clock must be enabled to get write access to DAC registers using
mbed_official 76:aeb1df146756 76 RCC_APB1PeriphClockCmd(RCC_APB1Periph_DAC, ENABLE)
mbed_official 76:aeb1df146756 77 (+) Configure DAC_OUTx (DAC_OUT1: PA4, DAC_OUT2: PA5) in analog mode.
mbed_official 76:aeb1df146756 78 (+) Configure the DAC channel using DAC_Init()
mbed_official 76:aeb1df146756 79 (+) Enable the DAC channel using DAC_Cmd()
mbed_official 76:aeb1df146756 80
mbed_official 76:aeb1df146756 81 @endverbatim
mbed_official 76:aeb1df146756 82 *
mbed_official 76:aeb1df146756 83 ******************************************************************************
mbed_official 76:aeb1df146756 84 * @attention
mbed_official 76:aeb1df146756 85 *
mbed_official 106:ced8cbb51063 86 * <h2><center>&copy; COPYRIGHT(c) 2014 STMicroelectronics</center></h2>
mbed_official 76:aeb1df146756 87 *
mbed_official 106:ced8cbb51063 88 * Redistribution and use in source and binary forms, with or without modification,
mbed_official 106:ced8cbb51063 89 * are permitted provided that the following conditions are met:
mbed_official 106:ced8cbb51063 90 * 1. Redistributions of source code must retain the above copyright notice,
mbed_official 106:ced8cbb51063 91 * this list of conditions and the following disclaimer.
mbed_official 106:ced8cbb51063 92 * 2. Redistributions in binary form must reproduce the above copyright notice,
mbed_official 106:ced8cbb51063 93 * this list of conditions and the following disclaimer in the documentation
mbed_official 106:ced8cbb51063 94 * and/or other materials provided with the distribution.
mbed_official 106:ced8cbb51063 95 * 3. Neither the name of STMicroelectronics nor the names of its contributors
mbed_official 106:ced8cbb51063 96 * may be used to endorse or promote products derived from this software
mbed_official 106:ced8cbb51063 97 * without specific prior written permission.
mbed_official 76:aeb1df146756 98 *
mbed_official 106:ced8cbb51063 99 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
mbed_official 106:ced8cbb51063 100 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
mbed_official 106:ced8cbb51063 101 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
mbed_official 106:ced8cbb51063 102 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
mbed_official 106:ced8cbb51063 103 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
mbed_official 106:ced8cbb51063 104 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
mbed_official 106:ced8cbb51063 105 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
mbed_official 106:ced8cbb51063 106 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
mbed_official 106:ced8cbb51063 107 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
mbed_official 106:ced8cbb51063 108 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
mbed_official 76:aeb1df146756 109 *
mbed_official 76:aeb1df146756 110 ******************************************************************************
mbed_official 76:aeb1df146756 111 */
mbed_official 76:aeb1df146756 112
mbed_official 76:aeb1df146756 113 /* Includes ------------------------------------------------------------------*/
mbed_official 76:aeb1df146756 114 #include "stm32l1xx_dac.h"
mbed_official 76:aeb1df146756 115 #include "stm32l1xx_rcc.h"
mbed_official 76:aeb1df146756 116
mbed_official 76:aeb1df146756 117 /** @addtogroup STM32L1xx_StdPeriph_Driver
mbed_official 76:aeb1df146756 118 * @{
mbed_official 76:aeb1df146756 119 */
mbed_official 76:aeb1df146756 120
mbed_official 76:aeb1df146756 121 /** @defgroup DAC
mbed_official 76:aeb1df146756 122 * @brief DAC driver modules
mbed_official 76:aeb1df146756 123 * @{
mbed_official 76:aeb1df146756 124 */
mbed_official 76:aeb1df146756 125
mbed_official 76:aeb1df146756 126 /* Private typedef -----------------------------------------------------------*/
mbed_official 76:aeb1df146756 127 /* Private define ------------------------------------------------------------*/
mbed_official 76:aeb1df146756 128 /* CR register Mask */
mbed_official 76:aeb1df146756 129 #define CR_CLEAR_MASK ((uint32_t)0x00000FFE)
mbed_official 76:aeb1df146756 130
mbed_official 76:aeb1df146756 131 /* DAC Dual Channels SWTRIG masks */
mbed_official 76:aeb1df146756 132 #define DUAL_SWTRIG_SET ((uint32_t)0x00000003)
mbed_official 76:aeb1df146756 133 #define DUAL_SWTRIG_RESET ((uint32_t)0xFFFFFFFC)
mbed_official 76:aeb1df146756 134
mbed_official 76:aeb1df146756 135 /* DHR registers offsets */
mbed_official 76:aeb1df146756 136 #define DHR12R1_OFFSET ((uint32_t)0x00000008)
mbed_official 76:aeb1df146756 137 #define DHR12R2_OFFSET ((uint32_t)0x00000014)
mbed_official 76:aeb1df146756 138 #define DHR12RD_OFFSET ((uint32_t)0x00000020)
mbed_official 76:aeb1df146756 139
mbed_official 76:aeb1df146756 140 /* DOR register offset */
mbed_official 76:aeb1df146756 141 #define DOR_OFFSET ((uint32_t)0x0000002C)
mbed_official 76:aeb1df146756 142
mbed_official 76:aeb1df146756 143 /* Private macro -------------------------------------------------------------*/
mbed_official 76:aeb1df146756 144 /* Private variables ---------------------------------------------------------*/
mbed_official 76:aeb1df146756 145 /* Private function prototypes -----------------------------------------------*/
mbed_official 76:aeb1df146756 146 /* Private functions ---------------------------------------------------------*/
mbed_official 76:aeb1df146756 147
mbed_official 76:aeb1df146756 148 /** @defgroup DAC_Private_Functions
mbed_official 76:aeb1df146756 149 * @{
mbed_official 76:aeb1df146756 150 */
mbed_official 76:aeb1df146756 151
mbed_official 76:aeb1df146756 152 /** @defgroup DAC_Group1 DAC channels configuration
mbed_official 76:aeb1df146756 153 * @brief DAC channels configuration: trigger, output buffer, data format.
mbed_official 76:aeb1df146756 154 *
mbed_official 76:aeb1df146756 155 @verbatim
mbed_official 76:aeb1df146756 156 ===============================================================================
mbed_official 76:aeb1df146756 157 ##### DAC channels configuration: trigger, output buffer, data format #####
mbed_official 76:aeb1df146756 158 ===============================================================================
mbed_official 76:aeb1df146756 159
mbed_official 76:aeb1df146756 160 @endverbatim
mbed_official 76:aeb1df146756 161 * @{
mbed_official 76:aeb1df146756 162 */
mbed_official 76:aeb1df146756 163
mbed_official 76:aeb1df146756 164 /**
mbed_official 76:aeb1df146756 165 * @brief Deinitializes the DAC peripheral registers to their default reset values.
mbed_official 76:aeb1df146756 166 * @param None
mbed_official 76:aeb1df146756 167 * @retval None
mbed_official 76:aeb1df146756 168 */
mbed_official 76:aeb1df146756 169 void DAC_DeInit(void)
mbed_official 76:aeb1df146756 170 {
mbed_official 76:aeb1df146756 171 /* Enable DAC reset state */
mbed_official 76:aeb1df146756 172 RCC_APB1PeriphResetCmd(RCC_APB1Periph_DAC, ENABLE);
mbed_official 76:aeb1df146756 173 /* Release DAC from reset state */
mbed_official 76:aeb1df146756 174 RCC_APB1PeriphResetCmd(RCC_APB1Periph_DAC, DISABLE);
mbed_official 76:aeb1df146756 175 }
mbed_official 76:aeb1df146756 176
mbed_official 76:aeb1df146756 177 /**
mbed_official 76:aeb1df146756 178 * @brief Initializes the DAC peripheral according to the specified
mbed_official 76:aeb1df146756 179 * parameters in the DAC_InitStruct.
mbed_official 76:aeb1df146756 180 * @param DAC_Channel: the selected DAC channel.
mbed_official 76:aeb1df146756 181 * This parameter can be one of the following values:
mbed_official 76:aeb1df146756 182 * @arg DAC_Channel_1: DAC Channel1 selected.
mbed_official 76:aeb1df146756 183 * @arg DAC_Channel_2: DAC Channel2 selected.
mbed_official 76:aeb1df146756 184 * @param DAC_InitStruct: pointer to a DAC_InitTypeDef structure that
mbed_official 76:aeb1df146756 185 * contains the configuration information for the specified DAC channel.
mbed_official 76:aeb1df146756 186 * @retval None
mbed_official 76:aeb1df146756 187 */
mbed_official 76:aeb1df146756 188 void DAC_Init(uint32_t DAC_Channel, DAC_InitTypeDef* DAC_InitStruct)
mbed_official 76:aeb1df146756 189 {
mbed_official 76:aeb1df146756 190 uint32_t tmpreg1 = 0, tmpreg2 = 0;
mbed_official 76:aeb1df146756 191
mbed_official 76:aeb1df146756 192 /* Check the DAC parameters */
mbed_official 76:aeb1df146756 193 assert_param(IS_DAC_CHANNEL(DAC_Channel));
mbed_official 76:aeb1df146756 194 assert_param(IS_DAC_TRIGGER(DAC_InitStruct->DAC_Trigger));
mbed_official 76:aeb1df146756 195 assert_param(IS_DAC_GENERATE_WAVE(DAC_InitStruct->DAC_WaveGeneration));
mbed_official 76:aeb1df146756 196 assert_param(IS_DAC_LFSR_UNMASK_TRIANGLE_AMPLITUDE(DAC_InitStruct->DAC_LFSRUnmask_TriangleAmplitude));
mbed_official 76:aeb1df146756 197 assert_param(IS_DAC_OUTPUT_BUFFER_STATE(DAC_InitStruct->DAC_OutputBuffer));
mbed_official 76:aeb1df146756 198
mbed_official 76:aeb1df146756 199 /*---------------------------- DAC CR Configuration --------------------------*/
mbed_official 76:aeb1df146756 200 /* Get the DAC CR value */
mbed_official 76:aeb1df146756 201 tmpreg1 = DAC->CR;
mbed_official 76:aeb1df146756 202 /* Clear BOFFx, TENx, TSELx, WAVEx and MAMPx bits */
mbed_official 76:aeb1df146756 203 tmpreg1 &= ~(CR_CLEAR_MASK << DAC_Channel);
mbed_official 76:aeb1df146756 204 /* Configure for the selected DAC channel: buffer output, trigger, wave generation,
mbed_official 76:aeb1df146756 205 mask/amplitude for wave generation */
mbed_official 76:aeb1df146756 206 /* Set TSELx and TENx bits according to DAC_Trigger value */
mbed_official 76:aeb1df146756 207 /* Set WAVEx bits according to DAC_WaveGeneration value */
mbed_official 76:aeb1df146756 208 /* Set MAMPx bits according to DAC_LFSRUnmask_TriangleAmplitude value */
mbed_official 76:aeb1df146756 209 /* Set BOFFx bit according to DAC_OutputBuffer value */
mbed_official 76:aeb1df146756 210 tmpreg2 = (DAC_InitStruct->DAC_Trigger | DAC_InitStruct->DAC_WaveGeneration |
mbed_official 76:aeb1df146756 211 DAC_InitStruct->DAC_LFSRUnmask_TriangleAmplitude | DAC_InitStruct->DAC_OutputBuffer);
mbed_official 76:aeb1df146756 212 /* Calculate CR register value depending on DAC_Channel */
mbed_official 76:aeb1df146756 213 tmpreg1 |= tmpreg2 << DAC_Channel;
mbed_official 76:aeb1df146756 214 /* Write to DAC CR */
mbed_official 76:aeb1df146756 215 DAC->CR = tmpreg1;
mbed_official 76:aeb1df146756 216 }
mbed_official 76:aeb1df146756 217
mbed_official 76:aeb1df146756 218 /**
mbed_official 76:aeb1df146756 219 * @brief Fills each DAC_InitStruct member with its default value.
mbed_official 76:aeb1df146756 220 * @param DAC_InitStruct: pointer to a DAC_InitTypeDef structure which will
mbed_official 76:aeb1df146756 221 * be initialized.
mbed_official 76:aeb1df146756 222 * @retval None
mbed_official 76:aeb1df146756 223 */
mbed_official 76:aeb1df146756 224 void DAC_StructInit(DAC_InitTypeDef* DAC_InitStruct)
mbed_official 76:aeb1df146756 225 {
mbed_official 76:aeb1df146756 226 /*--------------- Reset DAC init structure parameters values -----------------*/
mbed_official 76:aeb1df146756 227 /* Initialize the DAC_Trigger member */
mbed_official 76:aeb1df146756 228 DAC_InitStruct->DAC_Trigger = DAC_Trigger_None;
mbed_official 76:aeb1df146756 229 /* Initialize the DAC_WaveGeneration member */
mbed_official 76:aeb1df146756 230 DAC_InitStruct->DAC_WaveGeneration = DAC_WaveGeneration_None;
mbed_official 76:aeb1df146756 231 /* Initialize the DAC_LFSRUnmask_TriangleAmplitude member */
mbed_official 76:aeb1df146756 232 DAC_InitStruct->DAC_LFSRUnmask_TriangleAmplitude = DAC_LFSRUnmask_Bit0;
mbed_official 76:aeb1df146756 233 /* Initialize the DAC_OutputBuffer member */
mbed_official 76:aeb1df146756 234 DAC_InitStruct->DAC_OutputBuffer = DAC_OutputBuffer_Enable;
mbed_official 76:aeb1df146756 235 }
mbed_official 76:aeb1df146756 236
mbed_official 76:aeb1df146756 237 /**
mbed_official 76:aeb1df146756 238 * @brief Enables or disables the specified DAC channel.
mbed_official 76:aeb1df146756 239 * @param DAC_Channel: The selected DAC channel.
mbed_official 76:aeb1df146756 240 * This parameter can be one of the following values:
mbed_official 76:aeb1df146756 241 * @arg DAC_Channel_1: DAC Channel1 selected
mbed_official 76:aeb1df146756 242 * @arg DAC_Channel_2: DAC Channel2 selected
mbed_official 76:aeb1df146756 243 * @param NewState: new state of the DAC channel.
mbed_official 76:aeb1df146756 244 * This parameter can be: ENABLE or DISABLE.
mbed_official 76:aeb1df146756 245 * @note When the DAC channel is enabled the trigger source can no more
mbed_official 76:aeb1df146756 246 * be modified.
mbed_official 76:aeb1df146756 247 * @retval None
mbed_official 76:aeb1df146756 248 */
mbed_official 76:aeb1df146756 249 void DAC_Cmd(uint32_t DAC_Channel, FunctionalState NewState)
mbed_official 76:aeb1df146756 250 {
mbed_official 76:aeb1df146756 251 /* Check the parameters */
mbed_official 76:aeb1df146756 252 assert_param(IS_DAC_CHANNEL(DAC_Channel));
mbed_official 76:aeb1df146756 253 assert_param(IS_FUNCTIONAL_STATE(NewState));
mbed_official 76:aeb1df146756 254
mbed_official 76:aeb1df146756 255 if (NewState != DISABLE)
mbed_official 76:aeb1df146756 256 {
mbed_official 76:aeb1df146756 257 /* Enable the selected DAC channel */
mbed_official 76:aeb1df146756 258 DAC->CR |= (DAC_CR_EN1 << DAC_Channel);
mbed_official 76:aeb1df146756 259 }
mbed_official 76:aeb1df146756 260 else
mbed_official 76:aeb1df146756 261 {
mbed_official 76:aeb1df146756 262 /* Disable 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 }
mbed_official 76:aeb1df146756 266
mbed_official 76:aeb1df146756 267 /**
mbed_official 76:aeb1df146756 268 * @brief Enables or disables the selected DAC channel software trigger.
mbed_official 76:aeb1df146756 269 * @param DAC_Channel: the selected DAC channel.
mbed_official 76:aeb1df146756 270 * This parameter can be one of the following values:
mbed_official 76:aeb1df146756 271 * @arg DAC_Channel_1: DAC Channel1 selected
mbed_official 76:aeb1df146756 272 * @arg DAC_Channel_2: DAC Channel2 selected
mbed_official 76:aeb1df146756 273 * @param NewState: new state of the selected DAC channel software trigger.
mbed_official 76:aeb1df146756 274 * This parameter can be: ENABLE or DISABLE.
mbed_official 76:aeb1df146756 275 * @retval None
mbed_official 76:aeb1df146756 276 */
mbed_official 76:aeb1df146756 277 void DAC_SoftwareTriggerCmd(uint32_t DAC_Channel, FunctionalState NewState)
mbed_official 76:aeb1df146756 278 {
mbed_official 76:aeb1df146756 279 /* Check the parameters */
mbed_official 76:aeb1df146756 280 assert_param(IS_DAC_CHANNEL(DAC_Channel));
mbed_official 76:aeb1df146756 281 assert_param(IS_FUNCTIONAL_STATE(NewState));
mbed_official 76:aeb1df146756 282
mbed_official 76:aeb1df146756 283 if (NewState != DISABLE)
mbed_official 76:aeb1df146756 284 {
mbed_official 76:aeb1df146756 285 /* Enable software trigger for the selected DAC channel */
mbed_official 76:aeb1df146756 286 DAC->SWTRIGR |= (uint32_t)DAC_SWTRIGR_SWTRIG1 << (DAC_Channel >> 4);
mbed_official 76:aeb1df146756 287 }
mbed_official 76:aeb1df146756 288 else
mbed_official 76:aeb1df146756 289 {
mbed_official 76:aeb1df146756 290 /* Disable 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 }
mbed_official 76:aeb1df146756 294
mbed_official 76:aeb1df146756 295 /**
mbed_official 76:aeb1df146756 296 * @brief Enables or disables simultaneously the two DAC channels software
mbed_official 76:aeb1df146756 297 * triggers.
mbed_official 76:aeb1df146756 298 * @param NewState: new state of the DAC channels software triggers.
mbed_official 76:aeb1df146756 299 * This parameter can be: ENABLE or DISABLE.
mbed_official 76:aeb1df146756 300 * @retval None
mbed_official 76:aeb1df146756 301 */
mbed_official 76:aeb1df146756 302 void DAC_DualSoftwareTriggerCmd(FunctionalState NewState)
mbed_official 76:aeb1df146756 303 {
mbed_official 76:aeb1df146756 304 /* Check the parameters */
mbed_official 76:aeb1df146756 305 assert_param(IS_FUNCTIONAL_STATE(NewState));
mbed_official 76:aeb1df146756 306
mbed_official 76:aeb1df146756 307 if (NewState != DISABLE)
mbed_official 76:aeb1df146756 308 {
mbed_official 76:aeb1df146756 309 /* Enable software trigger for both DAC channels */
mbed_official 76:aeb1df146756 310 DAC->SWTRIGR |= DUAL_SWTRIG_SET;
mbed_official 76:aeb1df146756 311 }
mbed_official 76:aeb1df146756 312 else
mbed_official 76:aeb1df146756 313 {
mbed_official 76:aeb1df146756 314 /* Disable software trigger for both DAC channels */
mbed_official 76:aeb1df146756 315 DAC->SWTRIGR &= DUAL_SWTRIG_RESET;
mbed_official 76:aeb1df146756 316 }
mbed_official 76:aeb1df146756 317 }
mbed_official 76:aeb1df146756 318
mbed_official 76:aeb1df146756 319 /**
mbed_official 76:aeb1df146756 320 * @brief Enables or disables the selected DAC channel wave generation.
mbed_official 76:aeb1df146756 321 * @param DAC_Channel: the selected DAC channel.
mbed_official 76:aeb1df146756 322 * This parameter can be one of the following values:
mbed_official 76:aeb1df146756 323 * @arg DAC_Channel_1: DAC Channel1 selected
mbed_official 76:aeb1df146756 324 * @arg DAC_Channel_2: DAC Channel2 selected
mbed_official 76:aeb1df146756 325 * @param DAC_Wave: Specifies the wave type to enable or disable.
mbed_official 76:aeb1df146756 326 * This parameter can be one of the following values:
mbed_official 76:aeb1df146756 327 * @arg DAC_Wave_Noise: noise wave generation
mbed_official 76:aeb1df146756 328 * @arg DAC_Wave_Triangle: triangle wave generation
mbed_official 76:aeb1df146756 329 * @param NewState: new state of the selected DAC channel wave generation.
mbed_official 76:aeb1df146756 330 * This parameter can be: ENABLE or DISABLE.
mbed_official 76:aeb1df146756 331 * @note
mbed_official 76:aeb1df146756 332 * @retval None
mbed_official 76:aeb1df146756 333 */
mbed_official 76:aeb1df146756 334 void DAC_WaveGenerationCmd(uint32_t DAC_Channel, uint32_t DAC_Wave, FunctionalState NewState)
mbed_official 76:aeb1df146756 335 {
mbed_official 76:aeb1df146756 336 /* Check the parameters */
mbed_official 76:aeb1df146756 337 assert_param(IS_DAC_CHANNEL(DAC_Channel));
mbed_official 76:aeb1df146756 338 assert_param(IS_DAC_WAVE(DAC_Wave));
mbed_official 76:aeb1df146756 339 assert_param(IS_FUNCTIONAL_STATE(NewState));
mbed_official 76:aeb1df146756 340
mbed_official 76:aeb1df146756 341 if (NewState != DISABLE)
mbed_official 76:aeb1df146756 342 {
mbed_official 76:aeb1df146756 343 /* Enable the selected wave generation for the selected DAC channel */
mbed_official 76:aeb1df146756 344 DAC->CR |= DAC_Wave << DAC_Channel;
mbed_official 76:aeb1df146756 345 }
mbed_official 76:aeb1df146756 346 else
mbed_official 76:aeb1df146756 347 {
mbed_official 76:aeb1df146756 348 /* Disable 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 }
mbed_official 76:aeb1df146756 352
mbed_official 76:aeb1df146756 353 /**
mbed_official 76:aeb1df146756 354 * @brief Set the specified data holding register value for DAC channel1.
mbed_official 76:aeb1df146756 355 * @param DAC_Align: Specifies the data alignment for DAC channel1.
mbed_official 76:aeb1df146756 356 * This parameter can be one of the following values:
mbed_official 76:aeb1df146756 357 * @arg DAC_Align_8b_R: 8bit right data alignment selected
mbed_official 76:aeb1df146756 358 * @arg DAC_Align_12b_L: 12bit left data alignment selected
mbed_official 76:aeb1df146756 359 * @arg DAC_Align_12b_R: 12bit right data alignment selected
mbed_official 76:aeb1df146756 360 * @param Data : Data to be loaded in the selected data holding register.
mbed_official 76:aeb1df146756 361 * @retval None
mbed_official 76:aeb1df146756 362 */
mbed_official 76:aeb1df146756 363 void DAC_SetChannel1Data(uint32_t DAC_Align, uint16_t Data)
mbed_official 76:aeb1df146756 364 {
mbed_official 76:aeb1df146756 365 __IO uint32_t tmp = 0;
mbed_official 76:aeb1df146756 366
mbed_official 76:aeb1df146756 367 /* Check the parameters */
mbed_official 76:aeb1df146756 368 assert_param(IS_DAC_ALIGN(DAC_Align));
mbed_official 76:aeb1df146756 369 assert_param(IS_DAC_DATA(Data));
mbed_official 76:aeb1df146756 370
mbed_official 76:aeb1df146756 371 tmp = (uint32_t)DAC_BASE;
mbed_official 76:aeb1df146756 372 tmp += DHR12R1_OFFSET + DAC_Align;
mbed_official 76:aeb1df146756 373
mbed_official 76:aeb1df146756 374 /* Set the DAC channel1 selected data holding register */
mbed_official 76:aeb1df146756 375 *(__IO uint32_t *) tmp = Data;
mbed_official 76:aeb1df146756 376 }
mbed_official 76:aeb1df146756 377
mbed_official 76:aeb1df146756 378 /**
mbed_official 76:aeb1df146756 379 * @brief Set the specified data holding register value for DAC channel2.
mbed_official 76:aeb1df146756 380 * @param DAC_Align: Specifies the data alignment for DAC channel2.
mbed_official 76:aeb1df146756 381 * This parameter can be one of the following values:
mbed_official 76:aeb1df146756 382 * @arg DAC_Align_8b_R: 8bit right data alignment selected
mbed_official 76:aeb1df146756 383 * @arg DAC_Align_12b_L: 12bit left data alignment selected
mbed_official 76:aeb1df146756 384 * @arg DAC_Align_12b_R: 12bit right data alignment selected
mbed_official 76:aeb1df146756 385 * @param Data : Data to be loaded in the selected data holding register.
mbed_official 76:aeb1df146756 386 * @retval None
mbed_official 76:aeb1df146756 387 */
mbed_official 76:aeb1df146756 388 void DAC_SetChannel2Data(uint32_t DAC_Align, uint16_t Data)
mbed_official 76:aeb1df146756 389 {
mbed_official 76:aeb1df146756 390 __IO uint32_t tmp = 0;
mbed_official 76:aeb1df146756 391
mbed_official 76:aeb1df146756 392 /* Check the parameters */
mbed_official 76:aeb1df146756 393 assert_param(IS_DAC_ALIGN(DAC_Align));
mbed_official 76:aeb1df146756 394 assert_param(IS_DAC_DATA(Data));
mbed_official 76:aeb1df146756 395
mbed_official 76:aeb1df146756 396 tmp = (uint32_t)DAC_BASE;
mbed_official 76:aeb1df146756 397 tmp += DHR12R2_OFFSET + DAC_Align;
mbed_official 76:aeb1df146756 398
mbed_official 76:aeb1df146756 399 /* Set the DAC channel2 selected data holding register */
mbed_official 76:aeb1df146756 400 *(__IO uint32_t *)tmp = Data;
mbed_official 76:aeb1df146756 401 }
mbed_official 76:aeb1df146756 402
mbed_official 76:aeb1df146756 403 /**
mbed_official 76:aeb1df146756 404 * @brief Set the specified data holding register value for dual channel DAC.
mbed_official 76:aeb1df146756 405 * @param DAC_Align: Specifies the data alignment for dual channel DAC.
mbed_official 76:aeb1df146756 406 * This parameter can be one of the following values:
mbed_official 76:aeb1df146756 407 * @arg DAC_Align_8b_R: 8bit right data alignment selected
mbed_official 76:aeb1df146756 408 * @arg DAC_Align_12b_L: 12bit left data alignment selected
mbed_official 76:aeb1df146756 409 * @arg DAC_Align_12b_R: 12bit right data alignment selected
mbed_official 76:aeb1df146756 410 * @param Data2: Data for DAC Channel2 to be loaded in the selected data
mbed_official 76:aeb1df146756 411 * holding register.
mbed_official 76:aeb1df146756 412 * @param Data1: Data for DAC Channel1 to be loaded in the selected data
mbed_official 76:aeb1df146756 413 * holding register.
mbed_official 76:aeb1df146756 414 * @note In dual mode, a unique register access is required to write in both
mbed_official 76:aeb1df146756 415 * DAC channels at the same time.
mbed_official 76:aeb1df146756 416 * @retval None
mbed_official 76:aeb1df146756 417 */
mbed_official 76:aeb1df146756 418 void DAC_SetDualChannelData(uint32_t DAC_Align, uint16_t Data2, uint16_t Data1)
mbed_official 76:aeb1df146756 419 {
mbed_official 76:aeb1df146756 420 uint32_t data = 0, tmp = 0;
mbed_official 76:aeb1df146756 421
mbed_official 76:aeb1df146756 422 /* Check the parameters */
mbed_official 76:aeb1df146756 423 assert_param(IS_DAC_ALIGN(DAC_Align));
mbed_official 76:aeb1df146756 424 assert_param(IS_DAC_DATA(Data1));
mbed_official 76:aeb1df146756 425 assert_param(IS_DAC_DATA(Data2));
mbed_official 76:aeb1df146756 426
mbed_official 76:aeb1df146756 427 /* Calculate and set dual DAC data holding register value */
mbed_official 76:aeb1df146756 428 if (DAC_Align == DAC_Align_8b_R)
mbed_official 76:aeb1df146756 429 {
mbed_official 76:aeb1df146756 430 data = ((uint32_t)Data2 << 8) | Data1;
mbed_official 76:aeb1df146756 431 }
mbed_official 76:aeb1df146756 432 else
mbed_official 76:aeb1df146756 433 {
mbed_official 76:aeb1df146756 434 data = ((uint32_t)Data2 << 16) | Data1;
mbed_official 76:aeb1df146756 435 }
mbed_official 76:aeb1df146756 436
mbed_official 76:aeb1df146756 437 tmp = (uint32_t)DAC_BASE;
mbed_official 76:aeb1df146756 438 tmp += DHR12RD_OFFSET + DAC_Align;
mbed_official 76:aeb1df146756 439
mbed_official 76:aeb1df146756 440 /* Set the dual DAC selected data holding register */
mbed_official 76:aeb1df146756 441 *(__IO uint32_t *)tmp = data;
mbed_official 76:aeb1df146756 442 }
mbed_official 76:aeb1df146756 443
mbed_official 76:aeb1df146756 444 /**
mbed_official 76:aeb1df146756 445 * @brief Returns the last data output value of the selected DAC channel.
mbed_official 76:aeb1df146756 446 * @param DAC_Channel: the selected DAC channel.
mbed_official 76:aeb1df146756 447 * This parameter can be one of the following values:
mbed_official 76:aeb1df146756 448 * @arg DAC_Channel_1: DAC Channel1 selected
mbed_official 76:aeb1df146756 449 * @arg DAC_Channel_2: DAC Channel2 selected
mbed_official 76:aeb1df146756 450 * @retval The selected DAC channel data output value.
mbed_official 76:aeb1df146756 451 */
mbed_official 76:aeb1df146756 452 uint16_t DAC_GetDataOutputValue(uint32_t DAC_Channel)
mbed_official 76:aeb1df146756 453 {
mbed_official 76:aeb1df146756 454 __IO uint32_t tmp = 0;
mbed_official 76:aeb1df146756 455
mbed_official 76:aeb1df146756 456 /* Check the parameters */
mbed_official 76:aeb1df146756 457 assert_param(IS_DAC_CHANNEL(DAC_Channel));
mbed_official 76:aeb1df146756 458
mbed_official 76:aeb1df146756 459 tmp = (uint32_t) DAC_BASE ;
mbed_official 76:aeb1df146756 460 tmp += DOR_OFFSET + ((uint32_t)DAC_Channel >> 2);
mbed_official 76:aeb1df146756 461
mbed_official 76:aeb1df146756 462 /* Returns the DAC channel data output register value */
mbed_official 76:aeb1df146756 463 return (uint16_t) (*(__IO uint32_t*) tmp);
mbed_official 76:aeb1df146756 464 }
mbed_official 76:aeb1df146756 465
mbed_official 76:aeb1df146756 466 /**
mbed_official 76:aeb1df146756 467 * @}
mbed_official 76:aeb1df146756 468 */
mbed_official 76:aeb1df146756 469
mbed_official 76:aeb1df146756 470 /** @defgroup DAC_Group2 DMA management functions
mbed_official 76:aeb1df146756 471 * @brief DMA management functions
mbed_official 76:aeb1df146756 472 *
mbed_official 76:aeb1df146756 473 @verbatim
mbed_official 76:aeb1df146756 474 ===============================================================================
mbed_official 76:aeb1df146756 475 ##### DMA management functions #####
mbed_official 76:aeb1df146756 476 ===============================================================================
mbed_official 76:aeb1df146756 477
mbed_official 76:aeb1df146756 478 @endverbatim
mbed_official 76:aeb1df146756 479 * @{
mbed_official 76:aeb1df146756 480 */
mbed_official 76:aeb1df146756 481
mbed_official 76:aeb1df146756 482 /**
mbed_official 76:aeb1df146756 483 * @brief Enables or disables the specified DAC channel DMA request.
mbed_official 76:aeb1df146756 484 * When enabled DMA1 is generated when an external trigger (EXTI Line9,
mbed_official 76:aeb1df146756 485 * TIM2, TIM4, TIM6, TIM7 or TIM9 but not a software trigger) occurs.
mbed_official 76:aeb1df146756 486 * @param DAC_Channel: the selected DAC channel.
mbed_official 76:aeb1df146756 487 * This parameter can be one of the following values:
mbed_official 76:aeb1df146756 488 * @arg DAC_Channel_1: DAC Channel1 selected
mbed_official 76:aeb1df146756 489 * @arg DAC_Channel_2: DAC Channel2 selected
mbed_official 76:aeb1df146756 490 * @param NewState: new state of the selected DAC channel DMA request.
mbed_official 76:aeb1df146756 491 * This parameter can be: ENABLE or DISABLE.
mbed_official 76:aeb1df146756 492 * @note The DAC channel1 (channel2) is mapped on DMA1 channel3 (channel4) which
mbed_official 76:aeb1df146756 493 * must be already configured.
mbed_official 76:aeb1df146756 494 * @retval None
mbed_official 76:aeb1df146756 495 */
mbed_official 76:aeb1df146756 496 void DAC_DMACmd(uint32_t DAC_Channel, FunctionalState NewState)
mbed_official 76:aeb1df146756 497 {
mbed_official 76:aeb1df146756 498 /* Check the parameters */
mbed_official 76:aeb1df146756 499 assert_param(IS_DAC_CHANNEL(DAC_Channel));
mbed_official 76:aeb1df146756 500 assert_param(IS_FUNCTIONAL_STATE(NewState));
mbed_official 76:aeb1df146756 501
mbed_official 76:aeb1df146756 502 if (NewState != DISABLE)
mbed_official 76:aeb1df146756 503 {
mbed_official 76:aeb1df146756 504 /* Enable the selected DAC channel DMA request */
mbed_official 76:aeb1df146756 505 DAC->CR |= (DAC_CR_DMAEN1 << DAC_Channel);
mbed_official 76:aeb1df146756 506 }
mbed_official 76:aeb1df146756 507 else
mbed_official 76:aeb1df146756 508 {
mbed_official 76:aeb1df146756 509 /* Disable 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 }
mbed_official 76:aeb1df146756 513
mbed_official 76:aeb1df146756 514 /**
mbed_official 76:aeb1df146756 515 * @}
mbed_official 76:aeb1df146756 516 */
mbed_official 76:aeb1df146756 517
mbed_official 76:aeb1df146756 518 /** @defgroup DAC_Group3 Interrupts and flags management functions
mbed_official 76:aeb1df146756 519 * @brief Interrupts and flags management functions
mbed_official 76:aeb1df146756 520 *
mbed_official 76:aeb1df146756 521 @verbatim
mbed_official 76:aeb1df146756 522 ===============================================================================
mbed_official 76:aeb1df146756 523 ##### Interrupts and flags management functions #####
mbed_official 76:aeb1df146756 524 ===============================================================================
mbed_official 76:aeb1df146756 525
mbed_official 76:aeb1df146756 526 @endverbatim
mbed_official 76:aeb1df146756 527 * @{
mbed_official 76:aeb1df146756 528 */
mbed_official 76:aeb1df146756 529
mbed_official 76:aeb1df146756 530 /**
mbed_official 76:aeb1df146756 531 * @brief Enables or disables the specified DAC interrupts.
mbed_official 76:aeb1df146756 532 * @param DAC_Channel: the selected DAC channel.
mbed_official 76:aeb1df146756 533 * This parameter can be one of the following values:
mbed_official 76:aeb1df146756 534 * @arg DAC_Channel_1: DAC Channel1 selected
mbed_official 76:aeb1df146756 535 * @arg DAC_Channel_2: DAC Channel2 selected
mbed_official 76:aeb1df146756 536 * @param DAC_IT: specifies the DAC interrupt sources to be enabled or disabled.
mbed_official 76:aeb1df146756 537 * This parameter can be the following value:
mbed_official 76:aeb1df146756 538 * @arg DAC_IT_DMAUDR: DMA underrun interrupt mask
mbed_official 76:aeb1df146756 539 * @note The DMA underrun occurs when a second external trigger arrives before
mbed_official 76:aeb1df146756 540 * the acknowledgement for the first external trigger is received (first request).
mbed_official 76:aeb1df146756 541 * @param NewState: new state of the specified DAC interrupts.
mbed_official 76:aeb1df146756 542 * This parameter can be: ENABLE or DISABLE.
mbed_official 76:aeb1df146756 543 * @retval None
mbed_official 76:aeb1df146756 544 */
mbed_official 76:aeb1df146756 545 void DAC_ITConfig(uint32_t DAC_Channel, uint32_t DAC_IT, FunctionalState NewState)
mbed_official 76:aeb1df146756 546 {
mbed_official 76:aeb1df146756 547 /* Check the parameters */
mbed_official 76:aeb1df146756 548 assert_param(IS_DAC_CHANNEL(DAC_Channel));
mbed_official 76:aeb1df146756 549 assert_param(IS_FUNCTIONAL_STATE(NewState));
mbed_official 76:aeb1df146756 550 assert_param(IS_DAC_IT(DAC_IT));
mbed_official 76:aeb1df146756 551
mbed_official 76:aeb1df146756 552 if (NewState != DISABLE)
mbed_official 76:aeb1df146756 553 {
mbed_official 76:aeb1df146756 554 /* Enable the selected DAC interrupts */
mbed_official 76:aeb1df146756 555 DAC->CR |= (DAC_IT << DAC_Channel);
mbed_official 76:aeb1df146756 556 }
mbed_official 76:aeb1df146756 557 else
mbed_official 76:aeb1df146756 558 {
mbed_official 76:aeb1df146756 559 /* Disable the selected DAC interrupts */
mbed_official 76:aeb1df146756 560 DAC->CR &= (~(uint32_t)(DAC_IT << DAC_Channel));
mbed_official 76:aeb1df146756 561 }
mbed_official 76:aeb1df146756 562 }
mbed_official 76:aeb1df146756 563
mbed_official 76:aeb1df146756 564 /**
mbed_official 76:aeb1df146756 565 * @brief Checks whether the specified DAC flag is set or not.
mbed_official 76:aeb1df146756 566 * @param DAC_Channel: thee selected DAC channel.
mbed_official 76:aeb1df146756 567 * This parameter can be one of the following values:
mbed_official 76:aeb1df146756 568 * @arg DAC_Channel_1: DAC Channel1 selected
mbed_official 76:aeb1df146756 569 * @arg DAC_Channel_2: DAC Channel2 selected
mbed_official 76:aeb1df146756 570 * @param DAC_FLAG: specifies the flag to check.
mbed_official 76:aeb1df146756 571 * This parameter can be only of the following value:
mbed_official 76:aeb1df146756 572 * @arg DAC_FLAG_DMAUDR: DMA underrun flag
mbed_official 76:aeb1df146756 573 * @note The DMA underrun occurs when a second external trigger arrives before
mbed_official 76:aeb1df146756 574 * the acknowledgement for the first external trigger is received (first request).
mbed_official 76:aeb1df146756 575 * @retval The new state of DAC_FLAG (SET or RESET).
mbed_official 76:aeb1df146756 576 */
mbed_official 76:aeb1df146756 577 FlagStatus DAC_GetFlagStatus(uint32_t DAC_Channel, uint32_t DAC_FLAG)
mbed_official 76:aeb1df146756 578 {
mbed_official 76:aeb1df146756 579 FlagStatus bitstatus = RESET;
mbed_official 76:aeb1df146756 580 /* Check the parameters */
mbed_official 76:aeb1df146756 581 assert_param(IS_DAC_CHANNEL(DAC_Channel));
mbed_official 76:aeb1df146756 582 assert_param(IS_DAC_FLAG(DAC_FLAG));
mbed_official 76:aeb1df146756 583
mbed_official 76:aeb1df146756 584 /* Check the status of the specified DAC flag */
mbed_official 76:aeb1df146756 585 if ((DAC->SR & (DAC_FLAG << DAC_Channel)) != (uint8_t)RESET)
mbed_official 76:aeb1df146756 586 {
mbed_official 76:aeb1df146756 587 /* DAC_FLAG is set */
mbed_official 76:aeb1df146756 588 bitstatus = SET;
mbed_official 76:aeb1df146756 589 }
mbed_official 76:aeb1df146756 590 else
mbed_official 76:aeb1df146756 591 {
mbed_official 76:aeb1df146756 592 /* DAC_FLAG is reset */
mbed_official 76:aeb1df146756 593 bitstatus = RESET;
mbed_official 76:aeb1df146756 594 }
mbed_official 76:aeb1df146756 595 /* Return the DAC_FLAG status */
mbed_official 76:aeb1df146756 596 return bitstatus;
mbed_official 76:aeb1df146756 597 }
mbed_official 76:aeb1df146756 598
mbed_official 76:aeb1df146756 599 /**
mbed_official 76:aeb1df146756 600 * @brief Clears the DAC channel's pending flags.
mbed_official 76:aeb1df146756 601 * @param DAC_Channel: the selected DAC channel.
mbed_official 76:aeb1df146756 602 * This parameter can be one of the following values:
mbed_official 76:aeb1df146756 603 * @arg DAC_Channel_1: DAC Channel1 selected
mbed_official 76:aeb1df146756 604 * @arg DAC_Channel_2: DAC Channel2 selected
mbed_official 76:aeb1df146756 605 * @param DAC_FLAG: specifies the flag to clear.
mbed_official 76:aeb1df146756 606 * This parameter can be the following value:
mbed_official 76:aeb1df146756 607 * @arg DAC_FLAG_DMAUDR: DMA underrun flag
mbed_official 76:aeb1df146756 608 * @retval None
mbed_official 76:aeb1df146756 609 */
mbed_official 76:aeb1df146756 610 void DAC_ClearFlag(uint32_t DAC_Channel, uint32_t DAC_FLAG)
mbed_official 76:aeb1df146756 611 {
mbed_official 76:aeb1df146756 612 /* Check the parameters */
mbed_official 76:aeb1df146756 613 assert_param(IS_DAC_CHANNEL(DAC_Channel));
mbed_official 76:aeb1df146756 614 assert_param(IS_DAC_FLAG(DAC_FLAG));
mbed_official 76:aeb1df146756 615
mbed_official 76:aeb1df146756 616 /* Clear the selected DAC flags */
mbed_official 76:aeb1df146756 617 DAC->SR = (DAC_FLAG << DAC_Channel);
mbed_official 76:aeb1df146756 618 }
mbed_official 76:aeb1df146756 619
mbed_official 76:aeb1df146756 620 /**
mbed_official 76:aeb1df146756 621 * @brief Checks whether the specified DAC interrupt has occurred or not.
mbed_official 76:aeb1df146756 622 * @param DAC_Channel: the selected DAC channel.
mbed_official 76:aeb1df146756 623 * This parameter can be one of the following values:
mbed_official 76:aeb1df146756 624 * @arg DAC_Channel_1: DAC Channel1 selected
mbed_official 76:aeb1df146756 625 * @arg DAC_Channel_2: DAC Channel2 selected
mbed_official 76:aeb1df146756 626 * @param DAC_IT: specifies the DAC interrupt source to check.
mbed_official 76:aeb1df146756 627 * This parameter can be the following values:
mbed_official 76:aeb1df146756 628 * @arg DAC_IT_DMAUDR: DMA underrun interrupt mask
mbed_official 76:aeb1df146756 629 * @note The DMA underrun occurs when a second external trigger arrives before
mbed_official 76:aeb1df146756 630 * the acknowledgement for the first external trigger is received (first request).
mbed_official 76:aeb1df146756 631 * @retval The new state of DAC_IT (SET or RESET).
mbed_official 76:aeb1df146756 632 */
mbed_official 76:aeb1df146756 633 ITStatus DAC_GetITStatus(uint32_t DAC_Channel, uint32_t DAC_IT)
mbed_official 76:aeb1df146756 634 {
mbed_official 76:aeb1df146756 635 ITStatus bitstatus = RESET;
mbed_official 76:aeb1df146756 636 uint32_t enablestatus = 0;
mbed_official 76:aeb1df146756 637
mbed_official 76:aeb1df146756 638 /* Check the parameters */
mbed_official 76:aeb1df146756 639 assert_param(IS_DAC_CHANNEL(DAC_Channel));
mbed_official 76:aeb1df146756 640 assert_param(IS_DAC_IT(DAC_IT));
mbed_official 76:aeb1df146756 641
mbed_official 76:aeb1df146756 642 /* Get the DAC_IT enable bit status */
mbed_official 76:aeb1df146756 643 enablestatus = (DAC->CR & (DAC_IT << DAC_Channel)) ;
mbed_official 76:aeb1df146756 644
mbed_official 76:aeb1df146756 645 /* Check the status of the specified DAC interrupt */
mbed_official 76:aeb1df146756 646 if (((DAC->SR & (DAC_IT << DAC_Channel)) != (uint32_t)RESET) && enablestatus)
mbed_official 76:aeb1df146756 647 {
mbed_official 76:aeb1df146756 648 /* DAC_IT is set */
mbed_official 76:aeb1df146756 649 bitstatus = SET;
mbed_official 76:aeb1df146756 650 }
mbed_official 76:aeb1df146756 651 else
mbed_official 76:aeb1df146756 652 {
mbed_official 76:aeb1df146756 653 /* DAC_IT is reset */
mbed_official 76:aeb1df146756 654 bitstatus = RESET;
mbed_official 76:aeb1df146756 655 }
mbed_official 76:aeb1df146756 656 /* Return the DAC_IT status */
mbed_official 76:aeb1df146756 657 return bitstatus;
mbed_official 76:aeb1df146756 658 }
mbed_official 76:aeb1df146756 659
mbed_official 76:aeb1df146756 660 /**
mbed_official 76:aeb1df146756 661 * @brief Clears the DAC channel's interrupt pending bits.
mbed_official 76:aeb1df146756 662 * @param DAC_Channel: the selected DAC channel.
mbed_official 76:aeb1df146756 663 * This parameter can be one of the following values:
mbed_official 76:aeb1df146756 664 * @arg DAC_Channel_1: DAC Channel1 selected
mbed_official 76:aeb1df146756 665 * @arg DAC_Channel_2: DAC Channel2 selected
mbed_official 76:aeb1df146756 666 * @param DAC_IT: specifies the DAC interrupt pending bit to clear.
mbed_official 76:aeb1df146756 667 * This parameter can be the following values:
mbed_official 76:aeb1df146756 668 * @arg DAC_IT_DMAUDR: DMA underrun interrupt mask
mbed_official 76:aeb1df146756 669 * @retval None
mbed_official 76:aeb1df146756 670 */
mbed_official 76:aeb1df146756 671 void DAC_ClearITPendingBit(uint32_t DAC_Channel, uint32_t DAC_IT)
mbed_official 76:aeb1df146756 672 {
mbed_official 76:aeb1df146756 673 /* Check the parameters */
mbed_official 76:aeb1df146756 674 assert_param(IS_DAC_CHANNEL(DAC_Channel));
mbed_official 76:aeb1df146756 675 assert_param(IS_DAC_IT(DAC_IT));
mbed_official 76:aeb1df146756 676
mbed_official 76:aeb1df146756 677 /* Clear the selected DAC interrupt pending bits */
mbed_official 76:aeb1df146756 678 DAC->SR = (DAC_IT << DAC_Channel);
mbed_official 76:aeb1df146756 679 }
mbed_official 76:aeb1df146756 680
mbed_official 76:aeb1df146756 681 /**
mbed_official 76:aeb1df146756 682 * @}
mbed_official 76:aeb1df146756 683 */
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 /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/