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git.gir.st - tmk_keyboard.git/blob - tmk_core/tool/mbed/mbed-sdk/libraries/mbed/targets/cmsis/TARGET_STM/TARGET_STM32L1/stm32l1xx_hal_dac_ex.c
2 ******************************************************************************
3 * @file stm32l1xx_hal_dac_ex.c
4 * @author MCD Application Team
6 * @date 5-September-2014
7 * @brief DAC HAL module driver.
8 * This file provides firmware functions to manage the following
9 * functionalities of DAC extension peripheral:
10 * + Extended features functions
14 ==============================================================================
15 ##### How to use this driver #####
16 ==============================================================================
18 (+) When Dual mode is enabled (i.e DAC Channel1 and Channel2 are used simultaneously) :
19 Use HAL_DACEx_DualGetValue() to get digital data to be converted and use
20 HAL_DACEx_DualSetValue() to set digital value to converted simultaneously in Channel 1 and Channel 2.
21 (+) Use HAL_DACEx_TriangleWaveGenerate() to generate Triangle signal.
22 (+) Use HAL_DACEx_NoiseWaveGenerate() to generate Noise signal.
25 ******************************************************************************
28 * <h2><center>© COPYRIGHT(c) 2014 STMicroelectronics</center></h2>
30 * Redistribution and use in source and binary forms, with or without modification,
31 * are permitted provided that the following conditions are met:
32 * 1. Redistributions of source code must retain the above copyright notice,
33 * this list of conditions and the following disclaimer.
34 * 2. Redistributions in binary form must reproduce the above copyright notice,
35 * this list of conditions and the following disclaimer in the documentation
36 * and/or other materials provided with the distribution.
37 * 3. Neither the name of STMicroelectronics nor the names of its contributors
38 * may be used to endorse or promote products derived from this software
39 * without specific prior written permission.
41 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
42 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
43 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
44 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
45 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
46 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
47 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
48 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
49 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
50 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
52 ******************************************************************************
56 /* Includes ------------------------------------------------------------------*/
57 #include "stm32l1xx_hal.h"
59 /** @addtogroup STM32L1xx_HAL_Driver
63 /** @defgroup DACEx DACEx
64 * @brief DAC driver modules
68 #ifdef HAL_DAC_MODULE_ENABLED
70 /* Private typedef -----------------------------------------------------------*/
71 /* Private define ------------------------------------------------------------*/
72 /* Private macro -------------------------------------------------------------*/
73 /* Private variables ---------------------------------------------------------*/
74 /* Private function prototypes -----------------------------------------------*/
75 /* Private functions ---------------------------------------------------------*/
77 /** @defgroup DACEx_Exported_Functions DACEx Exported Functions
81 /** @defgroup DACEx_Exported_Functions_Group1 Extended features functions
82 * @brief Extended features functions
85 ==============================================================================
86 ##### Extended features functions #####
87 ==============================================================================
88 [..] This section provides functions allowing to:
91 (+) Start conversion and enable DMA transfer.
92 (+) Stop conversion and disable DMA transfer.
93 (+) Get result of conversion.
94 (+) Get result of dual mode conversion.
101 * @brief Returns the last data output value of the selected DAC channel.
102 * @param hdac: pointer to a DAC_HandleTypeDef structure that contains
103 * the configuration information for the specified DAC.
104 * @retval The selected DAC channel data output value.
106 uint32_t HAL_DACEx_DualGetValue(DAC_HandleTypeDef
* hdac
)
110 tmp
|= hdac
->Instance
->DOR1
;
112 tmp
|= hdac
->Instance
->DOR2
<< 16;
114 /* Returns the DAC channel data output register value */
119 * @brief Enables or disables the selected DAC channel wave generation.
120 * @param hdac: pointer to a DAC_HandleTypeDef structure that contains
121 * the configuration information for the specified DAC.
122 * @param Channel: The selected DAC channel.
123 * This parameter can be one of the following values:
124 * DAC_CHANNEL_1 / DAC_CHANNEL_2
125 * @param Amplitude: Select max triangle amplitude.
126 * This parameter can be one of the following values:
127 * @arg DAC_TRIANGLEAMPLITUDE_1: Select max triangle amplitude of 1
128 * @arg DAC_TRIANGLEAMPLITUDE_3: Select max triangle amplitude of 3
129 * @arg DAC_TRIANGLEAMPLITUDE_7: Select max triangle amplitude of 7
130 * @arg DAC_TRIANGLEAMPLITUDE_15: Select max triangle amplitude of 15
131 * @arg DAC_TRIANGLEAMPLITUDE_31: Select max triangle amplitude of 31
132 * @arg DAC_TRIANGLEAMPLITUDE_63: Select max triangle amplitude of 63
133 * @arg DAC_TRIANGLEAMPLITUDE_127: Select max triangle amplitude of 127
134 * @arg DAC_TRIANGLEAMPLITUDE_255: Select max triangle amplitude of 255
135 * @arg DAC_TRIANGLEAMPLITUDE_511: Select max triangle amplitude of 511
136 * @arg DAC_TRIANGLEAMPLITUDE_1023: Select max triangle amplitude of 1023
137 * @arg DAC_TRIANGLEAMPLITUDE_2047: Select max triangle amplitude of 2047
138 * @arg DAC_TRIANGLEAMPLITUDE_4095: Select max triangle amplitude of 4095
141 HAL_StatusTypeDef
HAL_DACEx_TriangleWaveGenerate(DAC_HandleTypeDef
* hdac
, uint32_t Channel
, uint32_t Amplitude
)
143 /* Check the parameters */
144 assert_param(IS_DAC_CHANNEL(Channel
));
145 assert_param(IS_DAC_LFSR_UNMASK_TRIANGLE_AMPLITUDE(Amplitude
));
150 /* Change DAC state */
151 hdac
->State
= HAL_DAC_STATE_BUSY
;
153 /* Enable the selected wave generation for the selected DAC channel */
154 hdac
->Instance
->CR
|= (DAC_WAVE_TRIANGLE
| Amplitude
) << Channel
;
156 /* Change DAC state */
157 hdac
->State
= HAL_DAC_STATE_READY
;
159 /* Process unlocked */
162 /* Return function status */
167 * @brief Enables or disables the selected DAC channel wave generation.
168 * @param hdac: pointer to a DAC_HandleTypeDef structure that contains
169 * the configuration information for the specified DAC.
170 * @param Channel: The selected DAC channel.
171 * This parameter can be one of the following values:
172 * DAC_CHANNEL_1 / DAC_CHANNEL_2
173 * @param Amplitude: Unmask DAC channel LFSR for noise wave generation.
174 * This parameter can be one of the following values:
175 * @arg DAC_LFSRUNMASK_BIT0: Unmask DAC channel LFSR bit0 for noise wave generation
176 * @arg DAC_LFSRUNMASK_BITS1_0: Unmask DAC channel LFSR bit[1:0] for noise wave generation
177 * @arg DAC_LFSRUNMASK_BITS2_0: Unmask DAC channel LFSR bit[2:0] for noise wave generation
178 * @arg DAC_LFSRUNMASK_BITS3_0: Unmask DAC channel LFSR bit[3:0] for noise wave generation
179 * @arg DAC_LFSRUNMASK_BITS4_0: Unmask DAC channel LFSR bit[4:0] for noise wave generation
180 * @arg DAC_LFSRUNMASK_BITS5_0: Unmask DAC channel LFSR bit[5:0] for noise wave generation
181 * @arg DAC_LFSRUNMASK_BITS6_0: Unmask DAC channel LFSR bit[6:0] for noise wave generation
182 * @arg DAC_LFSRUNMASK_BITS7_0: Unmask DAC channel LFSR bit[7:0] for noise wave generation
183 * @arg DAC_LFSRUNMASK_BITS8_0: Unmask DAC channel LFSR bit[8:0] for noise wave generation
184 * @arg DAC_LFSRUNMASK_BITS9_0: Unmask DAC channel LFSR bit[9:0] for noise wave generation
185 * @arg DAC_LFSRUNMASK_BITS10_0: Unmask DAC channel LFSR bit[10:0] for noise wave generation
186 * @arg DAC_LFSRUNMASK_BITS11_0: Unmask DAC channel LFSR bit[11:0] for noise wave generation
189 HAL_StatusTypeDef
HAL_DACEx_NoiseWaveGenerate(DAC_HandleTypeDef
* hdac
, uint32_t Channel
, uint32_t Amplitude
)
191 /* Check the parameters */
192 assert_param(IS_DAC_CHANNEL(Channel
));
193 assert_param(IS_DAC_LFSR_UNMASK_TRIANGLE_AMPLITUDE(Amplitude
));
198 /* Change DAC state */
199 hdac
->State
= HAL_DAC_STATE_BUSY
;
201 /* Enable the selected wave generation for the selected DAC channel */
202 hdac
->Instance
->CR
|= (DAC_WAVE_NOISE
| Amplitude
) << Channel
;
204 /* Change DAC state */
205 hdac
->State
= HAL_DAC_STATE_READY
;
207 /* Process unlocked */
210 /* Return function status */
215 * @brief Set the specified data holding register value for dual DAC channel.
216 * @param hdac: pointer to a DAC_HandleTypeDef structure that contains
217 * the configuration information for the specified DAC.
218 * @param Alignment: Specifies the data alignment for dual channel DAC.
219 * This parameter can be one of the following values:
220 * DAC_ALIGN_8B_R: 8bit right data alignment selected
221 * DAC_ALIGN_12B_L: 12bit left data alignment selected
222 * DAC_ALIGN_12B_R: 12bit right data alignment selected
223 * @param Data1: Data for DAC Channel2 to be loaded in the selected data holding register.
224 * @param Data2: Data for DAC Channel1 to be loaded in the selected data holding register.
225 * @note In dual mode, a unique register access is required to write in both
226 * DAC channels at the same time.
229 HAL_StatusTypeDef
HAL_DACEx_DualSetValue(DAC_HandleTypeDef
* hdac
, uint32_t Alignment
, uint32_t Data1
, uint32_t Data2
)
231 uint32_t data
= 0, tmp
= 0;
233 /* Check the parameters */
234 assert_param(IS_DAC_ALIGN(Alignment
));
235 assert_param(IS_DAC_DATA(Data1
));
236 assert_param(IS_DAC_DATA(Data2
));
238 /* Calculate and set dual DAC data holding register value */
239 if (Alignment
== DAC_ALIGN_8B_R
)
241 data
= ((uint32_t)Data2
<< 8) | Data1
;
245 data
= ((uint32_t)Data2
<< 16) | Data1
;
248 tmp
= (uint32_t)hdac
->Instance
;
249 tmp
+= __HAL_DHR12RD_ALIGNEMENT(Alignment
);
251 /* Set the dual DAC selected data holding register */
252 *(__IO
uint32_t *)tmp
= data
;
254 /* Return function status */
260 * @brief Conversion complete callback in non blocking mode for Channel2
261 * @param hdac: pointer to a DAC_HandleTypeDef structure that contains
262 * the configuration information for the specified DAC.
265 __weak
void HAL_DACEx_ConvCpltCallbackCh2(DAC_HandleTypeDef
* hdac
)
267 /* NOTE : This function Should not be modified, when the callback is needed,
268 the HAL_DACEx_ConvCpltCallbackCh2 could be implemented in the user file
273 * @brief Conversion half DMA transfer callback in non blocking mode for Channel2
274 * @param hdac: pointer to a DAC_HandleTypeDef structure that contains
275 * the configuration information for the specified DAC.
278 __weak
void HAL_DACEx_ConvHalfCpltCallbackCh2(DAC_HandleTypeDef
* hdac
)
280 /* NOTE : This function Should not be modified, when the callback is needed,
281 the HAL_DACEx_ConvHalfCpltCallbackCh2 could be implemented in the user file
286 * @brief Error DAC callback for Channel2.
287 * @param hdac: pointer to a DAC_HandleTypeDef structure that contains
288 * the configuration information for the specified DAC.
291 __weak
void HAL_DACEx_ErrorCallbackCh2(DAC_HandleTypeDef
*hdac
)
293 /* NOTE : This function Should not be modified, when the callback is needed,
294 the HAL_DACEx_ErrorCallbackCh2 could be implemented in the user file
299 * @brief DMA underrun DAC callback for channel2.
300 * @param hdac: pointer to a DAC_HandleTypeDef structure that contains
301 * the configuration information for the specified DAC.
304 __weak
void HAL_DACEx_DMAUnderrunCallbackCh2(DAC_HandleTypeDef
*hdac
)
306 /* NOTE : This function Should not be modified, when the callback is needed,
307 the HAL_DAC_DMAUnderrunCallbackCh2 could be implemented in the user file
319 /** @defgroup DACEx_Private_Functions DACEx Private Functions
323 * @brief DMA conversion complete callback.
324 * @param hdma: pointer to a DMA_HandleTypeDef structure that contains
325 * the configuration information for the specified DMA module.
328 void DAC_DMAConvCpltCh2(DMA_HandleTypeDef
*hdma
)
330 DAC_HandleTypeDef
* hdac
= ( DAC_HandleTypeDef
* )((DMA_HandleTypeDef
* )hdma
)->Parent
;
332 HAL_DACEx_ConvCpltCallbackCh2(hdac
);
334 hdac
->State
= HAL_DAC_STATE_READY
;
338 * @brief DMA half transfer complete callback.
339 * @param hdma: pointer to a DMA_HandleTypeDef structure that contains
340 * the configuration information for the specified DMA module.
343 void DAC_DMAHalfConvCpltCh2(DMA_HandleTypeDef
*hdma
)
345 DAC_HandleTypeDef
* hdac
= ( DAC_HandleTypeDef
* )((DMA_HandleTypeDef
* )hdma
)->Parent
;
346 /* Conversion complete callback */
347 HAL_DACEx_ConvHalfCpltCallbackCh2(hdac
);
351 * @brief DMA error callback
352 * @param hdma: pointer to a DMA_HandleTypeDef structure that contains
353 * the configuration information for the specified DMA module.
356 void DAC_DMAErrorCh2(DMA_HandleTypeDef
*hdma
)
358 DAC_HandleTypeDef
* hdac
= ( DAC_HandleTypeDef
* )((DMA_HandleTypeDef
* )hdma
)->Parent
;
360 /* Set DAC error code to DMA error */
361 hdac
->ErrorCode
|= HAL_DAC_ERROR_DMA
;
363 HAL_DACEx_ErrorCallbackCh2(hdac
);
365 hdac
->State
= HAL_DAC_STATE_READY
;
372 #endif /* HAL_DAC_MODULE_ENABLED */
382 /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/