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targets/cmsis/TARGET_STM/TARGET_STM32F3XX/stm32f30x_dac.c@637:ed69428d4850, 2015-12-22 (annotated)

Committer:
jaerts
Date:
Tue Dec 22 13:22:16 2015 +0000
Revision:
637:ed69428d4850
Parent:
155:8435094ec241 
Add very shady LPC1768 CAN Filter implementation

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UserRevisionLine numberNew contents of line
mbed_official 155:8435094ec241 1 /**
mbed_official 155:8435094ec241 2 ******************************************************************************
mbed_official 155:8435094ec241 3 * @file stm32f30x_dac.c
mbed_official 155:8435094ec241 4 * @author MCD Application Team
mbed_official 155:8435094ec241 5 * @version V1.1.0
mbed_official 155:8435094ec241 6 * @date 27-February-2014
mbed_official 155:8435094ec241 7 * @brief This file provides firmware functions to manage the following
mbed_official 155:8435094ec241 8 * functionalities of the Digital-to-Analog Converter (DAC) peripheral:
mbed_official 155:8435094ec241 9 * + DAC channels configuration: trigger, output buffer, data format
mbed_official 155:8435094ec241 10 * + DMA management
mbed_official 155:8435094ec241 11 * + Interrupts and flags management
mbed_official 155:8435094ec241 12 *
mbed_official 155:8435094ec241 13 @verbatim
mbed_official 155:8435094ec241 14
mbed_official 155:8435094ec241 15 ===============================================================================
mbed_official 155:8435094ec241 16 ##### DAC Peripheral features #####
mbed_official 155:8435094ec241 17 ===============================================================================
mbed_official 155:8435094ec241 18 [..] The device integrates two 12-bit Digital Analog Converters that can
mbed_official 155:8435094ec241 19 be used independently or simultaneously (dual mode):
mbed_official 155:8435094ec241 20 (#) DAC1 integrates two DAC channels:
mbed_official 155:8435094ec241 21 (++) DAC1 channel 1 with DAC1_OUT1 as output
mbed_official 155:8435094ec241 22 (++) DAC1 channel 2 with DAC1_OUT2 as output
mbed_official 155:8435094ec241 23 (++) The two channels can be used independently or simultaneously (dual mode)
mbed_official 155:8435094ec241 24
mbed_official 155:8435094ec241 25 (#) DAC2 integrates only one channel DAC2 channel 1 with DAC2_OUT1 as output
mbed_official 155:8435094ec241 26
mbed_official 155:8435094ec241 27 [..] Digital to Analog conversion can be non-triggered using DAC_Trigger_None
mbed_official 155:8435094ec241 28 and DAC_OUT1/DAC_OUT2 is available once writing to DHRx register using
mbed_official 155:8435094ec241 29 DAC_SetChannel1Data()/DAC_SetChannel2Data.
mbed_official 155:8435094ec241 30
mbed_official 155:8435094ec241 31 [..] Digital to Analog conversion can be triggered by:
mbed_official 155:8435094ec241 32 (#) External event: EXTI Line 9 (any GPIOx_Pin9) using DAC_Trigger_Ext_IT9.
mbed_official 155:8435094ec241 33 The used pin (GPIOx_Pin9) must be configured in input mode.
mbed_official 155:8435094ec241 34
mbed_official 155:8435094ec241 35 (#) Timers TRGO: TIM2, TIM8/TIM3, TIM4, TIM6, TIM7, and TIM15
mbed_official 155:8435094ec241 36 (DAC_Trigger_T2_TRGO, DAC_Trigger_T4_TRGO...)
mbed_official 155:8435094ec241 37 The timer TRGO event should be selected using TIM_SelectOutputTrigger()
mbed_official 155:8435094ec241 38 (++) To trigger DAC conversions by TIM3 instead of TIM8 follow
mbed_official 155:8435094ec241 39 this sequence:
mbed_official 155:8435094ec241 40 (+++) Enable SYSCFG APB clock by calling
mbed_official 155:8435094ec241 41 RCC_APB2PeriphClockCmd(RCC_APB2Periph_SYSCFG, ENABLE);
mbed_official 155:8435094ec241 42 (+++) Select DAC_Trigger_T3_TRGO when calling DAC_Init()
mbed_official 155:8435094ec241 43 (+++) Remap the DAC trigger from TIM8 to TIM3 by calling
mbed_official 155:8435094ec241 44 SYSCFG_TriggerRemapConfig(SYSCFG_TriggerRemap_DACTIM3, ENABLE)
mbed_official 155:8435094ec241 45 (#) Software using DAC_Trigger_Software
mbed_official 155:8435094ec241 46
mbed_official 155:8435094ec241 47 [..] Each DAC channel integrates an output buffer that can be used to
mbed_official 155:8435094ec241 48 reduce the output impedance, and to drive external loads directly
mbed_official 155:8435094ec241 49 without having to add an external operational amplifier.
mbed_official 155:8435094ec241 50 To enable, the output buffer use
mbed_official 155:8435094ec241 51 DAC_InitStructure.DAC_OutputBuffer = DAC_OutputBuffer_Enable;
mbed_official 155:8435094ec241 52
mbed_official 155:8435094ec241 53 [..] Refer to the device datasheet for more details about output impedance
mbed_official 155:8435094ec241 54 value with and without output buffer.
mbed_official 155:8435094ec241 55
mbed_official 155:8435094ec241 56 [..] Both DAC channels can be used to generate:
mbed_official 155:8435094ec241 57 (+) Noise wave using DAC_WaveGeneration_Noise
mbed_official 155:8435094ec241 58 (+) Triangle wave using DAC_WaveGeneration_Triangle
mbed_official 155:8435094ec241 59
mbed_official 155:8435094ec241 60 [..] Wave generation can be disabled using DAC_WaveGeneration_None
mbed_official 155:8435094ec241 61
mbed_official 155:8435094ec241 62 [..] The DAC data format can be:
mbed_official 155:8435094ec241 63 (+) 8-bit right alignment using DAC_Align_8b_R
mbed_official 155:8435094ec241 64 (+) 12-bit left alignment using DAC_Align_12b_L
mbed_official 155:8435094ec241 65 (+) 12-bit right alignment using DAC_Align_12b_R
mbed_official 155:8435094ec241 66
mbed_official 155:8435094ec241 67 [..] The analog output voltage on each DAC channel pin is determined
mbed_official 155:8435094ec241 68 by the following equation:
mbed_official 155:8435094ec241 69 (+) DAC_OUTx = VREF+ * DOR / 4095 with DOR is the Data Output Register.
mbed_official 155:8435094ec241 70 VREF+ is the input voltage reference (refer to the device datasheet)
mbed_official 155:8435094ec241 71 e.g. To set DAC_OUT1 to 0.7V, use DAC_SetChannel1Data(DAC_Align_12b_R, 868);
mbed_official 155:8435094ec241 72 Assuming that VREF+ = 3.3, DAC_OUT1 = (3.3 * 868) / 4095 = 0.7V
mbed_official 155:8435094ec241 73
mbed_official 155:8435094ec241 74 [..] A DMA1 request can be generated when an external trigger (but not
mbed_official 155:8435094ec241 75 a software trigger) occurs if DMA1 requests are enabled using
mbed_official 155:8435094ec241 76 DAC_DMACmd()
mbed_official 155:8435094ec241 77 DMA1 requests are mapped as following:
mbed_official 155:8435094ec241 78 (+) DAC channel1 is mapped on DMA1 channel3 which must be already
mbed_official 155:8435094ec241 79 configured
mbed_official 155:8435094ec241 80 (+) DAC channel2 is mapped on DMA1 channel4 which must be already
mbed_official 155:8435094ec241 81 configured
mbed_official 155:8435094ec241 82
mbed_official 155:8435094ec241 83 ##### How to use this driver #####
mbed_official 155:8435094ec241 84 ===============================================================================
mbed_official 155:8435094ec241 85 [..]
mbed_official 155:8435094ec241 86 (+) Enable DAC APB1 clock to get write access to DAC registers
mbed_official 155:8435094ec241 87 using RCC_APB1PeriphClockCmd(RCC_APB1Periph_DAC, ENABLE)
mbed_official 155:8435094ec241 88
mbed_official 155:8435094ec241 89 (+) Configure DACx_OUTy (DAC1_OUT1: PA4, DAC1_OUT2: PA5, DAC2_OUT1: PA6)
mbed_official 155:8435094ec241 90 in analog mode.
mbed_official 155:8435094ec241 91
mbed_official 155:8435094ec241 92 (+) Configure the DAC channel using DAC_Init()
mbed_official 155:8435094ec241 93
mbed_official 155:8435094ec241 94 (+) Enable the DAC channel using DAC_Cmd()
mbed_official 155:8435094ec241 95
mbed_official 155:8435094ec241 96 @endverbatim
mbed_official 155:8435094ec241 97
mbed_official 155:8435094ec241 98 ******************************************************************************
mbed_official 155:8435094ec241 99 * @attention
mbed_official 155:8435094ec241 100 *
mbed_official 155:8435094ec241 101 * <h2><center>&copy; COPYRIGHT(c) 2014 STMicroelectronics</center></h2>
mbed_official 155:8435094ec241 102 *
mbed_official 155:8435094ec241 103 * Redistribution and use in source and binary forms, with or without modification,
mbed_official 155:8435094ec241 104 * are permitted provided that the following conditions are met:
mbed_official 155:8435094ec241 105 * 1. Redistributions of source code must retain the above copyright notice,
mbed_official 155:8435094ec241 106 * this list of conditions and the following disclaimer.
mbed_official 155:8435094ec241 107 * 2. Redistributions in binary form must reproduce the above copyright notice,
mbed_official 155:8435094ec241 108 * this list of conditions and the following disclaimer in the documentation
mbed_official 155:8435094ec241 109 * and/or other materials provided with the distribution.
mbed_official 155:8435094ec241 110 * 3. Neither the name of STMicroelectronics nor the names of its contributors
mbed_official 155:8435094ec241 111 * may be used to endorse or promote products derived from this software
mbed_official 155:8435094ec241 112 * without specific prior written permission.
mbed_official 155:8435094ec241 113 *
mbed_official 155:8435094ec241 114 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
mbed_official 155:8435094ec241 115 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
mbed_official 155:8435094ec241 116 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
mbed_official 155:8435094ec241 117 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
mbed_official 155:8435094ec241 118 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
mbed_official 155:8435094ec241 119 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
mbed_official 155:8435094ec241 120 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
mbed_official 155:8435094ec241 121 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
mbed_official 155:8435094ec241 122 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
mbed_official 155:8435094ec241 123 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
mbed_official 155:8435094ec241 124 *
mbed_official 155:8435094ec241 125 ******************************************************************************
mbed_official 155:8435094ec241 126 */
mbed_official 155:8435094ec241 127
mbed_official 155:8435094ec241 128
mbed_official 155:8435094ec241 129 /* Includes ------------------------------------------------------------------*/
mbed_official 155:8435094ec241 130 #include "stm32f30x_dac.h"
mbed_official 155:8435094ec241 131 #include "stm32f30x_rcc.h"
mbed_official 155:8435094ec241 132
mbed_official 155:8435094ec241 133 /** @addtogroup STM32F30x_StdPeriph_Driver
mbed_official 155:8435094ec241 134 * @{
mbed_official 155:8435094ec241 135 */
mbed_official 155:8435094ec241 136
mbed_official 155:8435094ec241 137 /** @defgroup DAC
mbed_official 155:8435094ec241 138 * @brief DAC driver modules
mbed_official 155:8435094ec241 139 * @{
mbed_official 155:8435094ec241 140 */
mbed_official 155:8435094ec241 141
mbed_official 155:8435094ec241 142 /* Private typedef -----------------------------------------------------------*/
mbed_official 155:8435094ec241 143 /* Private define ------------------------------------------------------------*/
mbed_official 155:8435094ec241 144
mbed_official 155:8435094ec241 145 /* CR register Mask */
mbed_official 155:8435094ec241 146 #define CR_CLEAR_MASK ((uint32_t)0x00000FFE)
mbed_official 155:8435094ec241 147
mbed_official 155:8435094ec241 148 /* DAC Dual Channels SWTRIG masks */
mbed_official 155:8435094ec241 149 #define DUAL_SWTRIG_SET ((uint32_t)0x00000003)
mbed_official 155:8435094ec241 150 #define DUAL_SWTRIG_RESET ((uint32_t)0xFFFFFFFC)
mbed_official 155:8435094ec241 151
mbed_official 155:8435094ec241 152 /* DHR registers offsets */
mbed_official 155:8435094ec241 153 #define DHR12R1_OFFSET ((uint32_t)0x00000008)
mbed_official 155:8435094ec241 154 #define DHR12R2_OFFSET ((uint32_t)0x00000014)
mbed_official 155:8435094ec241 155 #define DHR12RD_OFFSET ((uint32_t)0x00000020)
mbed_official 155:8435094ec241 156
mbed_official 155:8435094ec241 157 /* DOR register offset */
mbed_official 155:8435094ec241 158 #define DOR_OFFSET ((uint32_t)0x0000002C)
mbed_official 155:8435094ec241 159
mbed_official 155:8435094ec241 160 /* Private macro -------------------------------------------------------------*/
mbed_official 155:8435094ec241 161 /* Private variables ---------------------------------------------------------*/
mbed_official 155:8435094ec241 162 /* Private function prototypes -----------------------------------------------*/
mbed_official 155:8435094ec241 163 /* Private functions ---------------------------------------------------------*/
mbed_official 155:8435094ec241 164
mbed_official 155:8435094ec241 165 /** @defgroup DAC_Private_Functions
mbed_official 155:8435094ec241 166 * @{
mbed_official 155:8435094ec241 167 */
mbed_official 155:8435094ec241 168
mbed_official 155:8435094ec241 169 /** @defgroup DAC_Group1 DAC channels configuration
mbed_official 155:8435094ec241 170 * @brief DAC channels configuration: trigger, output buffer, data format
mbed_official 155:8435094ec241 171 *
mbed_official 155:8435094ec241 172 @verbatim
mbed_official 155:8435094ec241 173 ===============================================================================
mbed_official 155:8435094ec241 174 ##### DAC channels configuration: trigger, output buffer, data format #####
mbed_official 155:8435094ec241 175 ===============================================================================
mbed_official 155:8435094ec241 176
mbed_official 155:8435094ec241 177 @endverbatim
mbed_official 155:8435094ec241 178 * @{
mbed_official 155:8435094ec241 179 */
mbed_official 155:8435094ec241 180
mbed_official 155:8435094ec241 181 /**
mbed_official 155:8435094ec241 182 * @brief Deinitializes the DAC peripheral registers to their default reset values.
mbed_official 155:8435094ec241 183 * @param DACx: where x can be 1 or 2 to select the DAC peripheral.
mbed_official 155:8435094ec241 184 * @retval None
mbed_official 155:8435094ec241 185 */
mbed_official 155:8435094ec241 186 void DAC_DeInit(DAC_TypeDef* DACx)
mbed_official 155:8435094ec241 187 {
mbed_official 155:8435094ec241 188 /* Check the parameters */
mbed_official 155:8435094ec241 189 assert_param(IS_DAC_ALL_PERIPH(DACx));
mbed_official 155:8435094ec241 190
mbed_official 155:8435094ec241 191 if (DACx == DAC1)
mbed_official 155:8435094ec241 192 {
mbed_official 155:8435094ec241 193 /* Enable DAC1 reset state */
mbed_official 155:8435094ec241 194 RCC_APB1PeriphResetCmd(RCC_APB1Periph_DAC1, ENABLE);
mbed_official 155:8435094ec241 195 /* Release DAC1 from reset state */
mbed_official 155:8435094ec241 196 RCC_APB1PeriphResetCmd(RCC_APB1Periph_DAC1, DISABLE);
mbed_official 155:8435094ec241 197 }
mbed_official 155:8435094ec241 198 else
mbed_official 155:8435094ec241 199 {
mbed_official 155:8435094ec241 200 /* Enable DAC2 reset state */
mbed_official 155:8435094ec241 201 RCC_APB1PeriphResetCmd(RCC_APB1Periph_DAC2, ENABLE);
mbed_official 155:8435094ec241 202 /* Release DAC2 from reset state */
mbed_official 155:8435094ec241 203 RCC_APB1PeriphResetCmd(RCC_APB1Periph_DAC2, DISABLE);
mbed_official 155:8435094ec241 204 }
mbed_official 155:8435094ec241 205 }
mbed_official 155:8435094ec241 206
mbed_official 155:8435094ec241 207 /**
mbed_official 155:8435094ec241 208 * @brief Initializes the DAC peripheral according to the specified
mbed_official 155:8435094ec241 209 * parameters in the DAC_InitStruct.
mbed_official 155:8435094ec241 210 * @param DACx: where x can be 1 or 2 to select the DAC peripheral.
mbed_official 155:8435094ec241 211 * @param DAC_Channel: the selected DAC channel.
mbed_official 155:8435094ec241 212 * This parameter can be one of the following values:
mbed_official 155:8435094ec241 213 * @arg DAC_Channel_1: DAC Channel1 selected
mbed_official 155:8435094ec241 214 * @arg DAC_Channel_2: DAC Channel2 selected
mbed_official 155:8435094ec241 215 * @param DAC_InitStruct: pointer to a DAC_InitTypeDef structure that
mbed_official 155:8435094ec241 216 * contains the configuration information for the specified DAC channel.
mbed_official 155:8435094ec241 217 * @retval None
mbed_official 155:8435094ec241 218 */
mbed_official 155:8435094ec241 219 void DAC_Init(DAC_TypeDef* DACx, uint32_t DAC_Channel, DAC_InitTypeDef* DAC_InitStruct)
mbed_official 155:8435094ec241 220 {
mbed_official 155:8435094ec241 221 uint32_t tmpreg1 = 0, tmpreg2 = 0;
mbed_official 155:8435094ec241 222
mbed_official 155:8435094ec241 223 /* Check the DAC parameters */
mbed_official 155:8435094ec241 224 assert_param(IS_DAC_ALL_PERIPH(DACx));
mbed_official 155:8435094ec241 225 assert_param(IS_DAC_TRIGGER(DAC_InitStruct->DAC_Trigger));
mbed_official 155:8435094ec241 226 assert_param(IS_DAC_GENERATE_WAVE(DAC_InitStruct->DAC_WaveGeneration));
mbed_official 155:8435094ec241 227 assert_param(IS_DAC_LFSR_UNMASK_TRIANGLE_AMPLITUDE(DAC_InitStruct->DAC_LFSRUnmask_TriangleAmplitude));
mbed_official 155:8435094ec241 228 assert_param(IS_DAC_BUFFER_SWITCH_STATE(DAC_InitStruct->DAC_Buffer_Switch));
mbed_official 155:8435094ec241 229
mbed_official 155:8435094ec241 230 /*---------------------------- DAC CR Configuration --------------------------*/
mbed_official 155:8435094ec241 231 /* Get the DAC CR value */
mbed_official 155:8435094ec241 232 tmpreg1 = DACx->CR;
mbed_official 155:8435094ec241 233 /* Clear BOFFx, TENx, TSELx, WAVEx and MAMPx bits */
mbed_official 155:8435094ec241 234 tmpreg1 &= ~(CR_CLEAR_MASK << DAC_Channel);
mbed_official 155:8435094ec241 235 /* Configure for the selected DAC channel: buffer output, trigger, wave generation,
mbed_official 155:8435094ec241 236 mask/amplitude for wave generation */
mbed_official 155:8435094ec241 237
mbed_official 155:8435094ec241 238 /* Set TSELx and TENx bits according to DAC_Trigger value */
mbed_official 155:8435094ec241 239 /* Set WAVEx bits according to DAC_WaveGeneration value */
mbed_official 155:8435094ec241 240 /* Set MAMPx bits according to DAC_LFSRUnmask_TriangleAmplitude value */
mbed_official 155:8435094ec241 241 /* Set BOFFx OUTENx bit according to DAC_Buffer_Switch value */
mbed_official 155:8435094ec241 242 tmpreg2 = (DAC_InitStruct->DAC_Trigger | DAC_InitStruct->DAC_WaveGeneration |
mbed_official 155:8435094ec241 243 DAC_InitStruct->DAC_LFSRUnmask_TriangleAmplitude | DAC_InitStruct->DAC_Buffer_Switch);
mbed_official 155:8435094ec241 244
mbed_official 155:8435094ec241 245 /* Calculate CR register value depending on DAC_Channel */
mbed_official 155:8435094ec241 246 tmpreg1 |= tmpreg2 << DAC_Channel;
mbed_official 155:8435094ec241 247 /* Write to DAC CR */
mbed_official 155:8435094ec241 248 DACx->CR = tmpreg1;
mbed_official 155:8435094ec241 249 }
mbed_official 155:8435094ec241 250
mbed_official 155:8435094ec241 251 /**
mbed_official 155:8435094ec241 252 * @brief Fills each DAC_InitStruct member with its default value.
mbed_official 155:8435094ec241 253 * @param DAC_InitStruct: pointer to a DAC_InitTypeDef structure which will
mbed_official 155:8435094ec241 254 * be initialized.
mbed_official 155:8435094ec241 255 * @retval None
mbed_official 155:8435094ec241 256 */
mbed_official 155:8435094ec241 257 void DAC_StructInit(DAC_InitTypeDef* DAC_InitStruct)
mbed_official 155:8435094ec241 258 {
mbed_official 155:8435094ec241 259 /*--------------- Reset DAC init structure parameters values -----------------*/
mbed_official 155:8435094ec241 260 /* Initialize the DAC_Trigger member */
mbed_official 155:8435094ec241 261 DAC_InitStruct->DAC_Trigger = DAC_Trigger_None;
mbed_official 155:8435094ec241 262 /* Initialize the DAC_WaveGeneration member */
mbed_official 155:8435094ec241 263 DAC_InitStruct->DAC_WaveGeneration = DAC_WaveGeneration_None;
mbed_official 155:8435094ec241 264 /* Initialize the DAC_LFSRUnmask_TriangleAmplitude member */
mbed_official 155:8435094ec241 265 DAC_InitStruct->DAC_LFSRUnmask_TriangleAmplitude = DAC_LFSRUnmask_Bit0;
mbed_official 155:8435094ec241 266 /* Initialize the DAC_Buffer_Switch member */
mbed_official 155:8435094ec241 267 DAC_InitStruct->DAC_Buffer_Switch = DAC_BufferSwitch_Enable;
mbed_official 155:8435094ec241 268 }
mbed_official 155:8435094ec241 269
mbed_official 155:8435094ec241 270 /**
mbed_official 155:8435094ec241 271 * @brief Enables or disables the specified DAC channel.
mbed_official 155:8435094ec241 272 * @param DACx: where x can be 1 or 2 to select the DAC peripheral.
mbed_official 155:8435094ec241 273 * @param DAC_Channel: The selected DAC channel.
mbed_official 155:8435094ec241 274 * This parameter can be one of the following values:
mbed_official 155:8435094ec241 275 * @arg DAC_Channel_1: DAC Channel1 selected
mbed_official 155:8435094ec241 276 * @arg DAC_Channel_2: DAC Channel2 selected
mbed_official 155:8435094ec241 277 * @param NewState: new state of the DAC channel.
mbed_official 155:8435094ec241 278 * This parameter can be: ENABLE or DISABLE.
mbed_official 155:8435094ec241 279 * @note When the DAC channel is enabled the trigger source can no more
mbed_official 155:8435094ec241 280 * be modified.
mbed_official 155:8435094ec241 281 * @retval None
mbed_official 155:8435094ec241 282 */
mbed_official 155:8435094ec241 283 void DAC_Cmd(DAC_TypeDef* DACx, uint32_t DAC_Channel, FunctionalState NewState)
mbed_official 155:8435094ec241 284 {
mbed_official 155:8435094ec241 285 /* Check the parameters */
mbed_official 155:8435094ec241 286 assert_param(IS_DAC_ALL_PERIPH(DACx));
mbed_official 155:8435094ec241 287 assert_param(IS_DAC_CHANNEL(DAC_Channel));
mbed_official 155:8435094ec241 288 assert_param(IS_FUNCTIONAL_STATE(NewState));
mbed_official 155:8435094ec241 289
mbed_official 155:8435094ec241 290 if (NewState != DISABLE)
mbed_official 155:8435094ec241 291 {
mbed_official 155:8435094ec241 292 /* Enable the selected DAC channel */
mbed_official 155:8435094ec241 293 DACx->CR |= (DAC_CR_EN1 << DAC_Channel);
mbed_official 155:8435094ec241 294 }
mbed_official 155:8435094ec241 295 else
mbed_official 155:8435094ec241 296 {
mbed_official 155:8435094ec241 297 /* Disable the selected DAC channel */
mbed_official 155:8435094ec241 298 DACx->CR &= (~(DAC_CR_EN1 << DAC_Channel));
mbed_official 155:8435094ec241 299 }
mbed_official 155:8435094ec241 300 }
mbed_official 155:8435094ec241 301
mbed_official 155:8435094ec241 302 /**
mbed_official 155:8435094ec241 303 * @brief Enables or disables the selected DAC channel software trigger.
mbed_official 155:8435094ec241 304 * @param DACx: where x can be 1 or 2 to select the DAC peripheral.
mbed_official 155:8435094ec241 305 * @param DAC_Channel: the selected DAC channel.
mbed_official 155:8435094ec241 306 * This parameter can be one of the following values:
mbed_official 155:8435094ec241 307 * @arg DAC_Channel_1: DAC Channel1 selected
mbed_official 155:8435094ec241 308 * @arg DAC_Channel_2: DAC Channel2 selected
mbed_official 155:8435094ec241 309 * @param NewState: new state of the selected DAC channel software trigger.
mbed_official 155:8435094ec241 310 * This parameter can be: ENABLE or DISABLE.
mbed_official 155:8435094ec241 311 * @retval None
mbed_official 155:8435094ec241 312 */
mbed_official 155:8435094ec241 313 void DAC_SoftwareTriggerCmd(DAC_TypeDef* DACx, uint32_t DAC_Channel, FunctionalState NewState)
mbed_official 155:8435094ec241 314 {
mbed_official 155:8435094ec241 315 /* Check the parameters */
mbed_official 155:8435094ec241 316 assert_param(IS_DAC_ALL_PERIPH(DACx));
mbed_official 155:8435094ec241 317 assert_param(IS_DAC_CHANNEL(DAC_Channel));
mbed_official 155:8435094ec241 318 assert_param(IS_FUNCTIONAL_STATE(NewState));
mbed_official 155:8435094ec241 319
mbed_official 155:8435094ec241 320 if (NewState != DISABLE)
mbed_official 155:8435094ec241 321 {
mbed_official 155:8435094ec241 322 /* Enable software trigger for the selected DAC channel */
mbed_official 155:8435094ec241 323 DACx->SWTRIGR |= (uint32_t)DAC_SWTRIGR_SWTRIG1 << (DAC_Channel >> 4);
mbed_official 155:8435094ec241 324 }
mbed_official 155:8435094ec241 325 else
mbed_official 155:8435094ec241 326 {
mbed_official 155:8435094ec241 327 /* Disable software trigger for the selected DAC channel */
mbed_official 155:8435094ec241 328 DACx->SWTRIGR &= ~((uint32_t)DAC_SWTRIGR_SWTRIG1 << (DAC_Channel >> 4));
mbed_official 155:8435094ec241 329 }
mbed_official 155:8435094ec241 330 }
mbed_official 155:8435094ec241 331
mbed_official 155:8435094ec241 332 /**
mbed_official 155:8435094ec241 333 * @brief Enables or disables simultaneously the two DAC channels software
mbed_official 155:8435094ec241 334 * triggers.
mbed_official 155:8435094ec241 335 * @param DACx: where x can be 1 to select the DAC1 peripheral.
mbed_official 155:8435094ec241 336 * @note Dual trigger is not applicable for DAC2 (DAC2 integrates one channel).
mbed_official 155:8435094ec241 337 * @param NewState: new state of the DAC channels software triggers.
mbed_official 155:8435094ec241 338 * This parameter can be: ENABLE or DISABLE.
mbed_official 155:8435094ec241 339 * @retval None
mbed_official 155:8435094ec241 340 */
mbed_official 155:8435094ec241 341 void DAC_DualSoftwareTriggerCmd(DAC_TypeDef* DACx, FunctionalState NewState)
mbed_official 155:8435094ec241 342 {
mbed_official 155:8435094ec241 343 /* Check the parameters */
mbed_official 155:8435094ec241 344 assert_param(IS_DAC_LIST1_PERIPH(DACx));
mbed_official 155:8435094ec241 345 assert_param(IS_FUNCTIONAL_STATE(NewState));
mbed_official 155:8435094ec241 346
mbed_official 155:8435094ec241 347 if (NewState != DISABLE)
mbed_official 155:8435094ec241 348 {
mbed_official 155:8435094ec241 349 /* Enable software trigger for both DAC channels */
mbed_official 155:8435094ec241 350 DACx->SWTRIGR |= DUAL_SWTRIG_SET;
mbed_official 155:8435094ec241 351 }
mbed_official 155:8435094ec241 352 else
mbed_official 155:8435094ec241 353 {
mbed_official 155:8435094ec241 354 /* Disable software trigger for both DAC channels */
mbed_official 155:8435094ec241 355 DACx->SWTRIGR &= DUAL_SWTRIG_RESET;
mbed_official 155:8435094ec241 356 }
mbed_official 155:8435094ec241 357 }
mbed_official 155:8435094ec241 358
mbed_official 155:8435094ec241 359 /**
mbed_official 155:8435094ec241 360 * @brief Enables or disables the selected DAC channel wave generation.
mbed_official 155:8435094ec241 361 * @param DACx: where x can be 1 to select the DAC1 peripheral.
mbed_official 155:8435094ec241 362 * @note Wave generation is not available in DAC2.
mbed_official 155:8435094ec241 363 * @param DAC_Channel: the selected DAC channel.
mbed_official 155:8435094ec241 364 * This parameter can be one of the following values:
mbed_official 155:8435094ec241 365 * @arg DAC_Channel_1: DAC Channel1 selected
mbed_official 155:8435094ec241 366 * @arg DAC_Channel_2: DAC Channel2 selected
mbed_official 155:8435094ec241 367 * @param DAC_Wave: Specifies the wave type to enable or disable.
mbed_official 155:8435094ec241 368 * This parameter can be one of the following values:
mbed_official 155:8435094ec241 369 * @arg DAC_Wave_Noise: noise wave generation
mbed_official 155:8435094ec241 370 * @arg DAC_Wave_Triangle: triangle wave generation
mbed_official 155:8435094ec241 371 * @param NewState: new state of the selected DAC channel wave generation.
mbed_official 155:8435094ec241 372 * This parameter can be: ENABLE or DISABLE.
mbed_official 155:8435094ec241 373 * @note
mbed_official 155:8435094ec241 374 * @retval None
mbed_official 155:8435094ec241 375 */
mbed_official 155:8435094ec241 376 void DAC_WaveGenerationCmd(DAC_TypeDef* DACx, uint32_t DAC_Channel, uint32_t DAC_Wave, FunctionalState NewState)
mbed_official 155:8435094ec241 377 {
mbed_official 155:8435094ec241 378 /* Check the parameters */
mbed_official 155:8435094ec241 379 assert_param(IS_DAC_LIST1_PERIPH(DACx));
mbed_official 155:8435094ec241 380 assert_param(IS_DAC_CHANNEL(DAC_Channel));
mbed_official 155:8435094ec241 381 assert_param(IS_DAC_WAVE(DAC_Wave));
mbed_official 155:8435094ec241 382 assert_param(IS_FUNCTIONAL_STATE(NewState));
mbed_official 155:8435094ec241 383
mbed_official 155:8435094ec241 384 if (NewState != DISABLE)
mbed_official 155:8435094ec241 385 {
mbed_official 155:8435094ec241 386 /* Enable the selected wave generation for the selected DAC channel */
mbed_official 155:8435094ec241 387 DACx->CR |= DAC_Wave << DAC_Channel;
mbed_official 155:8435094ec241 388 }
mbed_official 155:8435094ec241 389 else
mbed_official 155:8435094ec241 390 {
mbed_official 155:8435094ec241 391 /* Disable the selected wave generation for the selected DAC channel */
mbed_official 155:8435094ec241 392 DACx->CR &= ~(DAC_Wave << DAC_Channel);
mbed_official 155:8435094ec241 393 }
mbed_official 155:8435094ec241 394 }
mbed_official 155:8435094ec241 395
mbed_official 155:8435094ec241 396 /**
mbed_official 155:8435094ec241 397 * @brief Set the specified data holding register value for DAC channel1.
mbed_official 155:8435094ec241 398 * @param DACx: where x can be 1 or 2 to select the DAC peripheral.
mbed_official 155:8435094ec241 399 * @param DAC_Align: Specifies the data alignment for DAC channel1.
mbed_official 155:8435094ec241 400 * This parameter can be one of the following values:
mbed_official 155:8435094ec241 401 * @arg DAC_Align_8b_R: 8bit right data alignment selected
mbed_official 155:8435094ec241 402 * @arg DAC_Align_12b_L: 12bit left data alignment selected
mbed_official 155:8435094ec241 403 * @arg DAC_Align_12b_R: 12bit right data alignment selected
mbed_official 155:8435094ec241 404 * @param Data: Data to be loaded in the selected data holding register.
mbed_official 155:8435094ec241 405 * @retval None
mbed_official 155:8435094ec241 406 */
mbed_official 155:8435094ec241 407 void DAC_SetChannel1Data(DAC_TypeDef* DACx, uint32_t DAC_Align, uint16_t Data)
mbed_official 155:8435094ec241 408 {
mbed_official 155:8435094ec241 409 __IO uint32_t tmp = 0;
mbed_official 155:8435094ec241 410
mbed_official 155:8435094ec241 411 /* Check the parameters */
mbed_official 155:8435094ec241 412 assert_param(IS_DAC_ALL_PERIPH(DACx));
mbed_official 155:8435094ec241 413 assert_param(IS_DAC_ALIGN(DAC_Align));
mbed_official 155:8435094ec241 414 assert_param(IS_DAC_DATA(Data));
mbed_official 155:8435094ec241 415
mbed_official 155:8435094ec241 416 tmp = (uint32_t)DACx;
mbed_official 155:8435094ec241 417 tmp += DHR12R1_OFFSET + DAC_Align;
mbed_official 155:8435094ec241 418
mbed_official 155:8435094ec241 419 /* Set the DAC channel1 selected data holding register */
mbed_official 155:8435094ec241 420 *(__IO uint32_t *) tmp = Data;
mbed_official 155:8435094ec241 421 }
mbed_official 155:8435094ec241 422
mbed_official 155:8435094ec241 423 /**
mbed_official 155:8435094ec241 424 * @brief Set the specified data holding register value for DAC channel2.
mbed_official 155:8435094ec241 425 * @param DACx: where x can be 1 to select the DAC peripheral.
mbed_official 155:8435094ec241 426 * @note This function is available only for DAC1.
mbed_official 155:8435094ec241 427 * @param DAC_Align: Specifies the data alignment for DAC channel2.
mbed_official 155:8435094ec241 428 * This parameter can be one of the following values:
mbed_official 155:8435094ec241 429 * @arg DAC_Align_8b_R: 8bit right data alignment selected
mbed_official 155:8435094ec241 430 * @arg DAC_Align_12b_L: 12bit left data alignment selected
mbed_official 155:8435094ec241 431 * @arg DAC_Align_12b_R: 12bit right data alignment selected
mbed_official 155:8435094ec241 432 * @param Data : Data to be loaded in the selected data holding register.
mbed_official 155:8435094ec241 433 * @retval None
mbed_official 155:8435094ec241 434 */
mbed_official 155:8435094ec241 435 void DAC_SetChannel2Data(DAC_TypeDef* DACx, uint32_t DAC_Align, uint16_t Data)
mbed_official 155:8435094ec241 436 {
mbed_official 155:8435094ec241 437 __IO uint32_t tmp = 0;
mbed_official 155:8435094ec241 438
mbed_official 155:8435094ec241 439 /* Check the parameters */
mbed_official 155:8435094ec241 440 assert_param(IS_DAC_LIST1_PERIPH(DACx));
mbed_official 155:8435094ec241 441 assert_param(IS_DAC_ALIGN(DAC_Align));
mbed_official 155:8435094ec241 442 assert_param(IS_DAC_DATA(Data));
mbed_official 155:8435094ec241 443
mbed_official 155:8435094ec241 444 tmp = (uint32_t)DACx;
mbed_official 155:8435094ec241 445 tmp += DHR12R2_OFFSET + DAC_Align;
mbed_official 155:8435094ec241 446
mbed_official 155:8435094ec241 447 /* Set the DAC channel2 selected data holding register */
mbed_official 155:8435094ec241 448 *(__IO uint32_t *)tmp = Data;
mbed_official 155:8435094ec241 449 }
mbed_official 155:8435094ec241 450
mbed_official 155:8435094ec241 451 /**
mbed_official 155:8435094ec241 452 * @brief Set the specified data holding register value for dual channel DAC.
mbed_official 155:8435094ec241 453 * @param DACx: where x can be 1 to select the DAC peripheral.
mbed_official 155:8435094ec241 454 * @note This function isn't applicable for DAC2.
mbed_official 155:8435094ec241 455 * @param DAC_Align: Specifies the data alignment for dual channel DAC.
mbed_official 155:8435094ec241 456 * This parameter can be one of the following values:
mbed_official 155:8435094ec241 457 * @arg DAC_Align_8b_R: 8bit right data alignment selected
mbed_official 155:8435094ec241 458 * @arg DAC_Align_12b_L: 12bit left data alignment selected
mbed_official 155:8435094ec241 459 * @arg DAC_Align_12b_R: 12bit right data alignment selected
mbed_official 155:8435094ec241 460 * @param Data2: Data for DAC Channel2 to be loaded in the selected data
mbed_official 155:8435094ec241 461 * holding register.
mbed_official 155:8435094ec241 462 * @param Data1: Data for DAC Channel1 to be loaded in the selected data
mbed_official 155:8435094ec241 463 * holding register.
mbed_official 155:8435094ec241 464 * @note In dual mode, a unique register access is required to write in both
mbed_official 155:8435094ec241 465 * DAC channels at the same time.
mbed_official 155:8435094ec241 466 * @retval None
mbed_official 155:8435094ec241 467 */
mbed_official 155:8435094ec241 468 void DAC_SetDualChannelData(DAC_TypeDef* DACx, uint32_t DAC_Align, uint16_t Data2, uint16_t Data1)
mbed_official 155:8435094ec241 469 {
mbed_official 155:8435094ec241 470 uint32_t data = 0, tmp = 0;
mbed_official 155:8435094ec241 471
mbed_official 155:8435094ec241 472 /* Check the parameters */
mbed_official 155:8435094ec241 473 assert_param(IS_DAC_LIST1_PERIPH(DACx));
mbed_official 155:8435094ec241 474 assert_param(IS_DAC_ALIGN(DAC_Align));
mbed_official 155:8435094ec241 475 assert_param(IS_DAC_DATA(Data1));
mbed_official 155:8435094ec241 476 assert_param(IS_DAC_DATA(Data2));
mbed_official 155:8435094ec241 477
mbed_official 155:8435094ec241 478 /* Calculate and set dual DAC data holding register value */
mbed_official 155:8435094ec241 479 if (DAC_Align == DAC_Align_8b_R)
mbed_official 155:8435094ec241 480 {
mbed_official 155:8435094ec241 481 data = ((uint32_t)Data2 << 8) | Data1;
mbed_official 155:8435094ec241 482 }
mbed_official 155:8435094ec241 483 else
mbed_official 155:8435094ec241 484 {
mbed_official 155:8435094ec241 485 data = ((uint32_t)Data2 << 16) | Data1;
mbed_official 155:8435094ec241 486 }
mbed_official 155:8435094ec241 487
mbed_official 155:8435094ec241 488 tmp = (uint32_t)DACx;
mbed_official 155:8435094ec241 489 tmp += DHR12RD_OFFSET + DAC_Align;
mbed_official 155:8435094ec241 490
mbed_official 155:8435094ec241 491 /* Set the dual DAC selected data holding register */
mbed_official 155:8435094ec241 492 *(__IO uint32_t *)tmp = data;
mbed_official 155:8435094ec241 493 }
mbed_official 155:8435094ec241 494
mbed_official 155:8435094ec241 495 /**
mbed_official 155:8435094ec241 496 * @brief Returns the last data output value of the selected DAC channel.
mbed_official 155:8435094ec241 497 * @param DACx: where x can be 1 or 2 to select the DAC peripheral.
mbed_official 155:8435094ec241 498 * @param DAC_Channel: the selected DAC channel.
mbed_official 155:8435094ec241 499 * This parameter can be one of the following values:
mbed_official 155:8435094ec241 500 * @arg DAC_Channel_1: DAC Channel1 selected
mbed_official 155:8435094ec241 501 * @arg DAC_Channel_2: DAC Channel2 selected
mbed_official 155:8435094ec241 502 * @retval The selected DAC channel data output value.
mbed_official 155:8435094ec241 503 */
mbed_official 155:8435094ec241 504 uint16_t DAC_GetDataOutputValue(DAC_TypeDef* DACx, uint32_t DAC_Channel)
mbed_official 155:8435094ec241 505 {
mbed_official 155:8435094ec241 506 __IO uint32_t tmp = 0;
mbed_official 155:8435094ec241 507
mbed_official 155:8435094ec241 508 /* Check the parameters */
mbed_official 155:8435094ec241 509 assert_param(IS_DAC_ALL_PERIPH(DACx));
mbed_official 155:8435094ec241 510 assert_param(IS_DAC_CHANNEL(DAC_Channel));
mbed_official 155:8435094ec241 511
mbed_official 155:8435094ec241 512 tmp = (uint32_t) DACx;
mbed_official 155:8435094ec241 513 tmp += DOR_OFFSET + ((uint32_t)DAC_Channel >> 2);
mbed_official 155:8435094ec241 514
mbed_official 155:8435094ec241 515 /* Returns the DAC channel data output register value */
mbed_official 155:8435094ec241 516 return (uint16_t) (*(__IO uint32_t*) tmp);
mbed_official 155:8435094ec241 517 }
mbed_official 155:8435094ec241 518
mbed_official 155:8435094ec241 519 /**
mbed_official 155:8435094ec241 520 * @}
mbed_official 155:8435094ec241 521 */
mbed_official 155:8435094ec241 522
mbed_official 155:8435094ec241 523 /** @defgroup DAC_Group2 DMA management functions
mbed_official 155:8435094ec241 524 * @brief DMA management functions
mbed_official 155:8435094ec241 525 *
mbed_official 155:8435094ec241 526 @verbatim
mbed_official 155:8435094ec241 527 ===============================================================================
mbed_official 155:8435094ec241 528 ##### DMA management functions #####
mbed_official 155:8435094ec241 529 ===============================================================================
mbed_official 155:8435094ec241 530
mbed_official 155:8435094ec241 531 @endverbatim
mbed_official 155:8435094ec241 532 * @{
mbed_official 155:8435094ec241 533 */
mbed_official 155:8435094ec241 534
mbed_official 155:8435094ec241 535 /**
mbed_official 155:8435094ec241 536 * @brief Enables or disables the specified DAC channel DMA request.
mbed_official 155:8435094ec241 537 * When enabled DMA1 is generated when an external trigger (EXTI Line9,
mbed_official 155:8435094ec241 538 * TIM2, TIM4, TIM6, TIM7 or TIM9 but not a software trigger) occurs
mbed_official 155:8435094ec241 539 * @param DACx: where x can be 1 or 2 to select the DAC peripheral.
mbed_official 155:8435094ec241 540 * @param DAC_Channel: the selected DAC channel.
mbed_official 155:8435094ec241 541 * This parameter can be one of the following values:
mbed_official 155:8435094ec241 542 * @arg DAC_Channel_1: DAC Channel1 selected
mbed_official 155:8435094ec241 543 * @arg DAC_Channel_2: DAC Channel2 selected
mbed_official 155:8435094ec241 544 * @param NewState: new state of the selected DAC channel DMA request.
mbed_official 155:8435094ec241 545 * This parameter can be: ENABLE or DISABLE.
mbed_official 155:8435094ec241 546 * @note The DAC channel1 (channel2) is mapped on DMA1 channel3 (channel4) which
mbed_official 155:8435094ec241 547 * must be already configured.
mbed_official 155:8435094ec241 548 * @retval None
mbed_official 155:8435094ec241 549 */
mbed_official 155:8435094ec241 550 void DAC_DMACmd(DAC_TypeDef* DACx, uint32_t DAC_Channel, FunctionalState NewState)
mbed_official 155:8435094ec241 551 {
mbed_official 155:8435094ec241 552 /* Check the parameters */
mbed_official 155:8435094ec241 553 assert_param(IS_DAC_ALL_PERIPH(DACx));
mbed_official 155:8435094ec241 554 assert_param(IS_DAC_CHANNEL(DAC_Channel));
mbed_official 155:8435094ec241 555 assert_param(IS_FUNCTIONAL_STATE(NewState));
mbed_official 155:8435094ec241 556
mbed_official 155:8435094ec241 557 if (NewState != DISABLE)
mbed_official 155:8435094ec241 558 {
mbed_official 155:8435094ec241 559 /* Enable the selected DAC channel DMA request */
mbed_official 155:8435094ec241 560 DACx->CR |= (DAC_CR_DMAEN1 << DAC_Channel);
mbed_official 155:8435094ec241 561 }
mbed_official 155:8435094ec241 562 else
mbed_official 155:8435094ec241 563 {
mbed_official 155:8435094ec241 564 /* Disable the selected DAC channel DMA request */
mbed_official 155:8435094ec241 565 DACx->CR &= (~(DAC_CR_DMAEN1 << DAC_Channel));
mbed_official 155:8435094ec241 566 }
mbed_official 155:8435094ec241 567 }
mbed_official 155:8435094ec241 568
mbed_official 155:8435094ec241 569 /**
mbed_official 155:8435094ec241 570 * @}
mbed_official 155:8435094ec241 571 */
mbed_official 155:8435094ec241 572
mbed_official 155:8435094ec241 573 /** @defgroup DAC_Group3 Interrupts and flags management functions
mbed_official 155:8435094ec241 574 * @brief Interrupts and flags management functions
mbed_official 155:8435094ec241 575 *
mbed_official 155:8435094ec241 576 @verbatim
mbed_official 155:8435094ec241 577 ===============================================================================
mbed_official 155:8435094ec241 578 ##### Interrupts and flags management functions #####
mbed_official 155:8435094ec241 579 ===============================================================================
mbed_official 155:8435094ec241 580
mbed_official 155:8435094ec241 581 @endverbatim
mbed_official 155:8435094ec241 582 * @{
mbed_official 155:8435094ec241 583 */
mbed_official 155:8435094ec241 584
mbed_official 155:8435094ec241 585 /**
mbed_official 155:8435094ec241 586 * @brief Enables or disables the specified DAC interrupts.
mbed_official 155:8435094ec241 587 * @param DACx: where x can be 1 or 2 to select the DAC peripheral.
mbed_official 155:8435094ec241 588 * @param DAC_Channel: the selected DAC channel.
mbed_official 155:8435094ec241 589 * This parameter can be one of the following values:
mbed_official 155:8435094ec241 590 * @arg DAC_Channel_1: DAC Channel1 selected
mbed_official 155:8435094ec241 591 * @arg DAC_Channel_2: DAC Channel2 selected
mbed_official 155:8435094ec241 592 * @param DAC_IT: specifies the DAC interrupt sources to be enabled or disabled.
mbed_official 155:8435094ec241 593 * This parameter can be:
mbed_official 155:8435094ec241 594 * @arg DAC_IT_DMAUDR: DMA underrun interrupt mask
mbed_official 155:8435094ec241 595 * @note The DMA underrun occurs when a second external trigger arrives before
mbed_official 155:8435094ec241 596 * the acknowledgement for the first external trigger is received (first request).
mbed_official 155:8435094ec241 597 * @param NewState: new state of the specified DAC interrupts.
mbed_official 155:8435094ec241 598 * This parameter can be: ENABLE or DISABLE.
mbed_official 155:8435094ec241 599 * @retval None
mbed_official 155:8435094ec241 600 */
mbed_official 155:8435094ec241 601 void DAC_ITConfig(DAC_TypeDef* DACx, uint32_t DAC_Channel, uint32_t DAC_IT, FunctionalState NewState)
mbed_official 155:8435094ec241 602 {
mbed_official 155:8435094ec241 603 /* Check the parameters */
mbed_official 155:8435094ec241 604 assert_param(IS_DAC_ALL_PERIPH(DACx));
mbed_official 155:8435094ec241 605 assert_param(IS_DAC_CHANNEL(DAC_Channel));
mbed_official 155:8435094ec241 606 assert_param(IS_FUNCTIONAL_STATE(NewState));
mbed_official 155:8435094ec241 607 assert_param(IS_DAC_IT(DAC_IT));
mbed_official 155:8435094ec241 608
mbed_official 155:8435094ec241 609 if (NewState != DISABLE)
mbed_official 155:8435094ec241 610 {
mbed_official 155:8435094ec241 611 /* Enable the selected DAC interrupts */
mbed_official 155:8435094ec241 612 DACx->CR |= (DAC_IT << DAC_Channel);
mbed_official 155:8435094ec241 613 }
mbed_official 155:8435094ec241 614 else
mbed_official 155:8435094ec241 615 {
mbed_official 155:8435094ec241 616 /* Disable the selected DAC interrupts */
mbed_official 155:8435094ec241 617 DACx->CR &= (~(uint32_t)(DAC_IT << DAC_Channel));
mbed_official 155:8435094ec241 618 }
mbed_official 155:8435094ec241 619 }
mbed_official 155:8435094ec241 620
mbed_official 155:8435094ec241 621 /**
mbed_official 155:8435094ec241 622 * @brief Checks whether the specified DAC flag is set or not.
mbed_official 155:8435094ec241 623 * @param DACx: where x can be 1 or 2 to select the DAC peripheral.
mbed_official 155:8435094ec241 624 * @param DAC_Channel: thee selected DAC channel.
mbed_official 155:8435094ec241 625 * This parameter can be one of the following values:
mbed_official 155:8435094ec241 626 * @arg DAC_Channel_1: DAC Channel1 selected
mbed_official 155:8435094ec241 627 * @arg DAC_Channel_2: DAC Channel2 selected
mbed_official 155:8435094ec241 628 * @param DAC_FLAG: specifies the flag to check.
mbed_official 155:8435094ec241 629 * This parameter can be:
mbed_official 155:8435094ec241 630 * @arg DAC_FLAG_DMAUDR: DMA underrun flag
mbed_official 155:8435094ec241 631 * @note The DMA underrun occurs when a second external trigger arrives before
mbed_official 155:8435094ec241 632 * the acknowledgement for the first external trigger is received (first request).
mbed_official 155:8435094ec241 633 * @retval The new state of DAC_FLAG (SET or RESET).
mbed_official 155:8435094ec241 634 */
mbed_official 155:8435094ec241 635 FlagStatus DAC_GetFlagStatus(DAC_TypeDef* DACx, uint32_t DAC_Channel, uint32_t DAC_FLAG)
mbed_official 155:8435094ec241 636 {
mbed_official 155:8435094ec241 637 FlagStatus bitstatus = RESET;
mbed_official 155:8435094ec241 638
mbed_official 155:8435094ec241 639 /* Check the parameters */
mbed_official 155:8435094ec241 640 assert_param(IS_DAC_ALL_PERIPH(DACx));
mbed_official 155:8435094ec241 641 assert_param(IS_DAC_CHANNEL(DAC_Channel));
mbed_official 155:8435094ec241 642 assert_param(IS_DAC_FLAG(DAC_FLAG));
mbed_official 155:8435094ec241 643
mbed_official 155:8435094ec241 644 /* Check the status of the specified DAC flag */
mbed_official 155:8435094ec241 645 if ((DACx->SR & (DAC_FLAG << DAC_Channel)) != (uint8_t)RESET)
mbed_official 155:8435094ec241 646 {
mbed_official 155:8435094ec241 647 /* DAC_FLAG is set */
mbed_official 155:8435094ec241 648 bitstatus = SET;
mbed_official 155:8435094ec241 649 }
mbed_official 155:8435094ec241 650 else
mbed_official 155:8435094ec241 651 {
mbed_official 155:8435094ec241 652 /* DAC_FLAG is reset */
mbed_official 155:8435094ec241 653 bitstatus = RESET;
mbed_official 155:8435094ec241 654 }
mbed_official 155:8435094ec241 655 /* Return the DAC_FLAG status */
mbed_official 155:8435094ec241 656 return bitstatus;
mbed_official 155:8435094ec241 657 }
mbed_official 155:8435094ec241 658
mbed_official 155:8435094ec241 659 /**
mbed_official 155:8435094ec241 660 * @brief Clears the DAC channel's pending flags.
mbed_official 155:8435094ec241 661 * @param DACx: where x can be 1 or 2 to select the DAC peripheral.
mbed_official 155:8435094ec241 662 * @param DAC_Channel: the selected DAC channel.
mbed_official 155:8435094ec241 663 * This parameter can be one of the following values:
mbed_official 155:8435094ec241 664 * @arg DAC_Channel_1: DAC Channel1 selected
mbed_official 155:8435094ec241 665 * @arg DAC_Channel_2: DAC Channel2 selected
mbed_official 155:8435094ec241 666 * @param DAC_FLAG: specifies the flag to clear.
mbed_official 155:8435094ec241 667 * This parameter can be:
mbed_official 155:8435094ec241 668 * @arg DAC_FLAG_DMAUDR: DMA underrun flag
mbed_official 155:8435094ec241 669 * @retval None
mbed_official 155:8435094ec241 670 */
mbed_official 155:8435094ec241 671 void DAC_ClearFlag(DAC_TypeDef* DACx, uint32_t DAC_Channel, uint32_t DAC_FLAG)
mbed_official 155:8435094ec241 672 {
mbed_official 155:8435094ec241 673 /* Check the parameters */
mbed_official 155:8435094ec241 674 assert_param(IS_DAC_ALL_PERIPH(DACx));
mbed_official 155:8435094ec241 675 assert_param(IS_DAC_CHANNEL(DAC_Channel));
mbed_official 155:8435094ec241 676 assert_param(IS_DAC_FLAG(DAC_FLAG));
mbed_official 155:8435094ec241 677
mbed_official 155:8435094ec241 678 /* Clear the selected DAC flags */
mbed_official 155:8435094ec241 679 DACx->SR = (DAC_FLAG << DAC_Channel);
mbed_official 155:8435094ec241 680 }
mbed_official 155:8435094ec241 681
mbed_official 155:8435094ec241 682 /**
mbed_official 155:8435094ec241 683 * @brief Checks whether the specified DAC interrupt has occurred or not.
mbed_official 155:8435094ec241 684 * @param DACx: where x can be 1 or 2 to select the DAC peripheral.
mbed_official 155:8435094ec241 685 * @param DAC_Channel: the selected DAC channel.
mbed_official 155:8435094ec241 686 * This parameter can be one of the following values:
mbed_official 155:8435094ec241 687 * @arg DAC_Channel_1: DAC Channel1 selected
mbed_official 155:8435094ec241 688 * @arg DAC_Channel_2: DAC Channel2 selected
mbed_official 155:8435094ec241 689 * @param DAC_IT: specifies the DAC interrupt source to check.
mbed_official 155:8435094ec241 690 * This parameter can be:
mbed_official 155:8435094ec241 691 * @arg DAC_IT_DMAUDR: DMA underrun interrupt mask
mbed_official 155:8435094ec241 692 * @note The DMA underrun occurs when a second external trigger arrives before
mbed_official 155:8435094ec241 693 * the acknowledgement for the first external trigger is received (first request).
mbed_official 155:8435094ec241 694 * @retval The new state of DAC_IT (SET or RESET).
mbed_official 155:8435094ec241 695 */
mbed_official 155:8435094ec241 696 ITStatus DAC_GetITStatus(DAC_TypeDef* DACx, uint32_t DAC_Channel, uint32_t DAC_IT)
mbed_official 155:8435094ec241 697 {
mbed_official 155:8435094ec241 698 ITStatus bitstatus = RESET;
mbed_official 155:8435094ec241 699 uint32_t enablestatus = 0;
mbed_official 155:8435094ec241 700
mbed_official 155:8435094ec241 701 /* Check the parameters */
mbed_official 155:8435094ec241 702 assert_param(IS_DAC_ALL_PERIPH(DACx));
mbed_official 155:8435094ec241 703 assert_param(IS_DAC_CHANNEL(DAC_Channel));
mbed_official 155:8435094ec241 704 assert_param(IS_DAC_IT(DAC_IT));
mbed_official 155:8435094ec241 705
mbed_official 155:8435094ec241 706 /* Get the DAC_IT enable bit status */
mbed_official 155:8435094ec241 707 enablestatus = (DACx->CR & (DAC_IT << DAC_Channel)) ;
mbed_official 155:8435094ec241 708
mbed_official 155:8435094ec241 709 /* Check the status of the specified DAC interrupt */
mbed_official 155:8435094ec241 710 if (((DACx->SR & (DAC_IT << DAC_Channel)) != (uint32_t)RESET) && enablestatus)
mbed_official 155:8435094ec241 711 {
mbed_official 155:8435094ec241 712 /* DAC_IT is set */
mbed_official 155:8435094ec241 713 bitstatus = SET;
mbed_official 155:8435094ec241 714 }
mbed_official 155:8435094ec241 715 else
mbed_official 155:8435094ec241 716 {
mbed_official 155:8435094ec241 717 /* DAC_IT is reset */
mbed_official 155:8435094ec241 718 bitstatus = RESET;
mbed_official 155:8435094ec241 719 }
mbed_official 155:8435094ec241 720 /* Return the DAC_IT status */
mbed_official 155:8435094ec241 721 return bitstatus;
mbed_official 155:8435094ec241 722 }
mbed_official 155:8435094ec241 723
mbed_official 155:8435094ec241 724 /**
mbed_official 155:8435094ec241 725 * @brief Clears the DAC channel's interrupt pending bits.
mbed_official 155:8435094ec241 726 * @param DACx: where x can be 1 or 2 to select the DAC peripheral.
mbed_official 155:8435094ec241 727 * @param DAC_Channel: the selected DAC channel.
mbed_official 155:8435094ec241 728 * This parameter can be one of the following values:
mbed_official 155:8435094ec241 729 * @arg DAC_Channel_1: DAC Channel1 selected
mbed_official 155:8435094ec241 730 * @arg DAC_Channel_2: DAC Channel2 selected
mbed_official 155:8435094ec241 731 * @param DAC_IT: specifies the DAC interrupt pending bit to clear.
mbed_official 155:8435094ec241 732 * This parameter can be the following values:
mbed_official 155:8435094ec241 733 * @arg DAC_IT_DMAUDR: DMA underrun interrupt mask
mbed_official 155:8435094ec241 734 * @retval None
mbed_official 155:8435094ec241 735 */
mbed_official 155:8435094ec241 736 void DAC_ClearITPendingBit(DAC_TypeDef* DACx, uint32_t DAC_Channel, uint32_t DAC_IT)
mbed_official 155:8435094ec241 737 {
mbed_official 155:8435094ec241 738 /* Check the parameters */
mbed_official 155:8435094ec241 739 assert_param(IS_DAC_ALL_PERIPH(DACx));
mbed_official 155:8435094ec241 740 assert_param(IS_DAC_CHANNEL(DAC_Channel));
mbed_official 155:8435094ec241 741 assert_param(IS_DAC_IT(DAC_IT));
mbed_official 155:8435094ec241 742
mbed_official 155:8435094ec241 743 /* Clear the selected DAC interrupt pending bits */
mbed_official 155:8435094ec241 744 DACx->SR = (DAC_IT << DAC_Channel);
mbed_official 155:8435094ec241 745 }
mbed_official 155:8435094ec241 746
mbed_official 155:8435094ec241 747 /**
mbed_official 155:8435094ec241 748 * @}
mbed_official 155:8435094ec241 749 */
mbed_official 155:8435094ec241 750
mbed_official 155:8435094ec241 751 /**
mbed_official 155:8435094ec241 752 * @}
mbed_official 155:8435094ec241 753 */
mbed_official 155:8435094ec241 754
mbed_official 155:8435094ec241 755 /**
mbed_official 155:8435094ec241 756 * @}
mbed_official 155:8435094ec241 757 */
mbed_official 155:8435094ec241 758
mbed_official 155:8435094ec241 759 /**
mbed_official 155:8435094ec241 760 * @}
mbed_official 155:8435094ec241 761 */
mbed_official 155:8435094ec241 762
mbed_official 155:8435094ec241 763 /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
mbed_official 155:8435094ec241 764