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date Sat, 28 Apr 2018 11:52:34 +0200
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1 /**
2 ******************************************************************************
3 * @file stm32f4xx_hal_dac_ex.c
4 * @author MCD Application Team
5 * @version V1.2.0
6 * @date 26-December-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
11 *
12 *
13 @verbatim
14 ==============================================================================
15 ##### How to use this driver #####
16 ==============================================================================
17 [..]
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.
23
24 @endverbatim
25 ******************************************************************************
26 * @attention
27 *
28 * <h2><center>&copy; COPYRIGHT(c) 2014 STMicroelectronics</center></h2>
29 *
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.
40 *
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.
51 *
52 ******************************************************************************
53 */
54
55
56 /* Includes ------------------------------------------------------------------*/
57 #include "stm32f4xx_hal.h"
58
59 /** @addtogroup STM32F4xx_HAL_Driver
60 * @{
61 */
62
63 /** @defgroup DACEx DACEx
64 * @brief DAC driver modules
65 * @{
66 */
67
68 #ifdef HAL_DAC_MODULE_ENABLED
69
70 #if defined(STM32F405xx) || defined(STM32F415xx) || defined(STM32F407xx) || defined(STM32F417xx) || defined(STM32F427xx) || defined(STM32F437xx) || defined(STM32F429xx) || defined(STM32F439xx)
71
72 /* Private typedef -----------------------------------------------------------*/
73 /* Private define ------------------------------------------------------------*/
74 /* Private macro -------------------------------------------------------------*/
75 /* Private variables ---------------------------------------------------------*/
76 /* Private function prototypes -----------------------------------------------*/
77 /* Private functions ---------------------------------------------------------*/
78 /* Exported functions --------------------------------------------------------*/
79 /** @defgroup DACEx_Exported_Functions DAC Exported Functions
80 * @{
81 */
82
83 /** @defgroup DACEx_Exported_Functions_Group1 Extended features functions
84 * @brief Extended features functions
85 *
86 @verbatim
87 ==============================================================================
88 ##### Extended features functions #####
89 ==============================================================================
90 [..] This section provides functions allowing to:
91 (+) Start conversion.
92 (+) Stop conversion.
93 (+) Start conversion and enable DMA transfer.
94 (+) Stop conversion and disable DMA transfer.
95 (+) Get result of conversion.
96 (+) Get result of dual mode conversion.
97
98 @endverbatim
99 * @{
100 */
101
102 /**
103 * @brief Returns the last data output value of the selected DAC channel.
104 * @param hdac: pointer to a DAC_HandleTypeDef structure that contains
105 * the configuration information for the specified DAC.
106 * @retval The selected DAC channel data output value.
107 */
108 uint32_t HAL_DACEx_DualGetValue(DAC_HandleTypeDef* hdac)
109 {
110 uint32_t tmp = 0;
111
112 tmp |= hdac->Instance->DOR1;
113
114 tmp |= hdac->Instance->DOR2 << 16;
115
116 /* Returns the DAC channel data output register value */
117 return tmp;
118 }
119
120 /**
121 * @brief Enables or disables the selected DAC channel wave generation.
122 * @param hdac: pointer to a DAC_HandleTypeDef structure that contains
123 * the configuration information for the specified DAC.
124 * @param Channel: The selected DAC channel.
125 * This parameter can be one of the following values:
126 * DAC_CHANNEL_1 / DAC_CHANNEL_2
127 * @param Amplitude: Select max triangle amplitude.
128 * This parameter can be one of the following values:
129 * @arg DAC_TRIANGLEAMPLITUDE_1: Select max triangle amplitude of 1
130 * @arg DAC_TRIANGLEAMPLITUDE_3: Select max triangle amplitude of 3
131 * @arg DAC_TRIANGLEAMPLITUDE_7: Select max triangle amplitude of 7
132 * @arg DAC_TRIANGLEAMPLITUDE_15: Select max triangle amplitude of 15
133 * @arg DAC_TRIANGLEAMPLITUDE_31: Select max triangle amplitude of 31
134 * @arg DAC_TRIANGLEAMPLITUDE_63: Select max triangle amplitude of 63
135 * @arg DAC_TRIANGLEAMPLITUDE_127: Select max triangle amplitude of 127
136 * @arg DAC_TRIANGLEAMPLITUDE_255: Select max triangle amplitude of 255
137 * @arg DAC_TRIANGLEAMPLITUDE_511: Select max triangle amplitude of 511
138 * @arg DAC_TRIANGLEAMPLITUDE_1023: Select max triangle amplitude of 1023
139 * @arg DAC_TRIANGLEAMPLITUDE_2047: Select max triangle amplitude of 2047
140 * @arg DAC_TRIANGLEAMPLITUDE_4095: Select max triangle amplitude of 4095
141 * @retval HAL status
142 */
143 HAL_StatusTypeDef HAL_DACEx_TriangleWaveGenerate(DAC_HandleTypeDef* hdac, uint32_t Channel, uint32_t Amplitude)
144 {
145 /* Check the parameters */
146 assert_param(IS_DAC_CHANNEL(Channel));
147 assert_param(IS_DAC_LFSR_UNMASK_TRIANGLE_AMPLITUDE(Amplitude));
148
149 /* Process locked */
150 __HAL_LOCK(hdac);
151
152 /* Change DAC state */
153 hdac->State = HAL_DAC_STATE_BUSY;
154
155 /* Enable the selected wave generation for the selected DAC channel */
156 MODIFY_REG(hdac->Instance->CR, (DAC_CR_WAVE1 | DAC_CR_MAMP1) << Channel, (DAC_WAVE_TRIANGLE | Amplitude) << Channel);
157
158 /* Change DAC state */
159 hdac->State = HAL_DAC_STATE_READY;
160
161 /* Process unlocked */
162 __HAL_UNLOCK(hdac);
163
164 /* Return function status */
165 return HAL_OK;
166 }
167
168 /**
169 * @brief Enables or disables the selected DAC channel wave generation.
170 * @param hdac: pointer to a DAC_HandleTypeDef structure that contains
171 * the configuration information for the specified DAC.
172 * @param Channel: The selected DAC channel.
173 * This parameter can be one of the following values:
174 * DAC_CHANNEL_1 / DAC_CHANNEL_2
175 * @param Amplitude: Unmask DAC channel LFSR for noise wave generation.
176 * This parameter can be one of the following values:
177 * @arg DAC_LFSRUNMASK_BIT0: Unmask DAC channel LFSR bit0 for noise wave generation
178 * @arg DAC_LFSRUNMASK_BITS1_0: Unmask DAC channel LFSR bit[1:0] for noise wave generation
179 * @arg DAC_LFSRUNMASK_BITS2_0: Unmask DAC channel LFSR bit[2:0] for noise wave generation
180 * @arg DAC_LFSRUNMASK_BITS3_0: Unmask DAC channel LFSR bit[3:0] for noise wave generation
181 * @arg DAC_LFSRUNMASK_BITS4_0: Unmask DAC channel LFSR bit[4:0] for noise wave generation
182 * @arg DAC_LFSRUNMASK_BITS5_0: Unmask DAC channel LFSR bit[5:0] for noise wave generation
183 * @arg DAC_LFSRUNMASK_BITS6_0: Unmask DAC channel LFSR bit[6:0] for noise wave generation
184 * @arg DAC_LFSRUNMASK_BITS7_0: Unmask DAC channel LFSR bit[7:0] for noise wave generation
185 * @arg DAC_LFSRUNMASK_BITS8_0: Unmask DAC channel LFSR bit[8:0] for noise wave generation
186 * @arg DAC_LFSRUNMASK_BITS9_0: Unmask DAC channel LFSR bit[9:0] for noise wave generation
187 * @arg DAC_LFSRUNMASK_BITS10_0: Unmask DAC channel LFSR bit[10:0] for noise wave generation
188 * @arg DAC_LFSRUNMASK_BITS11_0: Unmask DAC channel LFSR bit[11:0] for noise wave generation
189 * @retval HAL status
190 */
191 HAL_StatusTypeDef HAL_DACEx_NoiseWaveGenerate(DAC_HandleTypeDef* hdac, uint32_t Channel, uint32_t Amplitude)
192 {
193 /* Check the parameters */
194 assert_param(IS_DAC_CHANNEL(Channel));
195 assert_param(IS_DAC_LFSR_UNMASK_TRIANGLE_AMPLITUDE(Amplitude));
196
197 /* Process locked */
198 __HAL_LOCK(hdac);
199
200 /* Change DAC state */
201 hdac->State = HAL_DAC_STATE_BUSY;
202
203 /* Enable the selected wave generation for the selected DAC channel */
204 MODIFY_REG(hdac->Instance->CR, (DAC_CR_WAVE1 | DAC_CR_MAMP1) << Channel, (DAC_WAVE_NOISE | Amplitude) << Channel);
205
206 /* Change DAC state */
207 hdac->State = HAL_DAC_STATE_READY;
208
209 /* Process unlocked */
210 __HAL_UNLOCK(hdac);
211
212 /* Return function status */
213 return HAL_OK;
214 }
215
216 /**
217 * @brief Set the specified data holding register value for dual DAC channel.
218 * @param hdac: pointer to a DAC_HandleTypeDef structure that contains
219 * the configuration information for the specified DAC.
220 * @param Alignment: Specifies the data alignment for dual channel DAC.
221 * This parameter can be one of the following values:
222 * DAC_ALIGN_8B_R: 8bit right data alignment selected
223 * DAC_ALIGN_12B_L: 12bit left data alignment selected
224 * DAC_ALIGN_12B_R: 12bit right data alignment selected
225 * @param Data1: Data for DAC Channel2 to be loaded in the selected data holding register.
226 * @param Data2: Data for DAC Channel1 to be loaded in the selected data holding register.
227 * @note In dual mode, a unique register access is required to write in both
228 * DAC channels at the same time.
229 * @retval HAL status
230 */
231 HAL_StatusTypeDef HAL_DACEx_DualSetValue(DAC_HandleTypeDef* hdac, uint32_t Alignment, uint32_t Data1, uint32_t Data2)
232 {
233 uint32_t data = 0, tmp = 0;
234
235 /* Check the parameters */
236 assert_param(IS_DAC_ALIGN(Alignment));
237 assert_param(IS_DAC_DATA(Data1));
238 assert_param(IS_DAC_DATA(Data2));
239
240 /* Calculate and set dual DAC data holding register value */
241 if (Alignment == DAC_ALIGN_8B_R)
242 {
243 data = ((uint32_t)Data2 << 8) | Data1;
244 }
245 else
246 {
247 data = ((uint32_t)Data2 << 16) | Data1;
248 }
249
250 tmp = (uint32_t)hdac->Instance;
251 tmp += DAC_DHR12RD_ALIGNMENT(Alignment);
252
253 /* Set the dual DAC selected data holding register */
254 *(__IO uint32_t *)tmp = data;
255
256 /* Return function status */
257 return HAL_OK;
258 }
259
260 /**
261 * @}
262 */
263
264 /**
265 * @brief Conversion complete callback in non blocking mode for Channel2
266 * @param hdac: pointer to a DAC_HandleTypeDef structure that contains
267 * the configuration information for the specified DAC.
268 * @retval None
269 */
270 __weak void HAL_DACEx_ConvCpltCallbackCh2(DAC_HandleTypeDef* hdac)
271 {
272 /* NOTE : This function Should not be modified, when the callback is needed,
273 the HAL_DAC_ConvCpltCallback could be implemented in the user file
274 */
275 }
276
277 /**
278 * @brief Conversion half DMA transfer callback in non blocking mode for Channel2
279 * @param hdac: pointer to a DAC_HandleTypeDef structure that contains
280 * the configuration information for the specified DAC.
281 * @retval None
282 */
283 __weak void HAL_DACEx_ConvHalfCpltCallbackCh2(DAC_HandleTypeDef* hdac)
284 {
285 /* NOTE : This function Should not be modified, when the callback is needed,
286 the HAL_DAC_ConvHalfCpltCallbackCh2 could be implemented in the user file
287 */
288 }
289
290 /**
291 * @brief Error DAC callback for Channel2.
292 * @param hdac: pointer to a DAC_HandleTypeDef structure that contains
293 * the configuration information for the specified DAC.
294 * @retval None
295 */
296 __weak void HAL_DACEx_ErrorCallbackCh2(DAC_HandleTypeDef *hdac)
297 {
298 /* NOTE : This function Should not be modified, when the callback is needed,
299 the HAL_DAC_ErrorCallback could be implemented in the user file
300 */
301 }
302
303 /**
304 * @brief DMA underrun DAC callback for channel2.
305 * @param hdac: pointer to a DAC_HandleTypeDef structure that contains
306 * the configuration information for the specified DAC.
307 * @retval None
308 */
309 __weak void HAL_DACEx_DMAUnderrunCallbackCh2(DAC_HandleTypeDef *hdac)
310 {
311 /* NOTE : This function Should not be modified, when the callback is needed,
312 the HAL_DAC_DMAUnderrunCallbackCh2 could be implemented in the user file
313 */
314 }
315
316 /**
317 * @brief DMA conversion complete callback.
318 * @param hdma: pointer to a DMA_HandleTypeDef structure that contains
319 * the configuration information for the specified DMA module.
320 * @retval None
321 */
322 void DAC_DMAConvCpltCh2(DMA_HandleTypeDef *hdma)
323 {
324 DAC_HandleTypeDef* hdac = ( DAC_HandleTypeDef* )((DMA_HandleTypeDef* )hdma)->Parent;
325
326 HAL_DACEx_ConvCpltCallbackCh2(hdac);
327
328 hdac->State= HAL_DAC_STATE_READY;
329 }
330
331 /**
332 * @brief DMA half transfer complete callback.
333 * @param hdma: pointer to a DMA_HandleTypeDef structure that contains
334 * the configuration information for the specified DMA module.
335 * @retval None
336 */
337 void DAC_DMAHalfConvCpltCh2(DMA_HandleTypeDef *hdma)
338 {
339 DAC_HandleTypeDef* hdac = ( DAC_HandleTypeDef* )((DMA_HandleTypeDef* )hdma)->Parent;
340 /* Conversion complete callback */
341 HAL_DACEx_ConvHalfCpltCallbackCh2(hdac);
342 }
343
344 /**
345 * @brief DMA error callback
346 * @param hdma: pointer to a DMA_HandleTypeDef structure that contains
347 * the configuration information for the specified DMA module.
348 * @retval None
349 */
350 void DAC_DMAErrorCh2(DMA_HandleTypeDef *hdma)
351 {
352 DAC_HandleTypeDef* hdac = ( DAC_HandleTypeDef* )((DMA_HandleTypeDef* )hdma)->Parent;
353
354 /* Set DAC error code to DMA error */
355 hdac->ErrorCode |= HAL_DAC_ERROR_DMA;
356
357 HAL_DACEx_ErrorCallbackCh2(hdac);
358
359 hdac->State= HAL_DAC_STATE_READY;
360 }
361
362 /**
363 * @}
364 */
365
366 #endif /* STM32F405xx || STM32F415xx || STM32F407xx || STM32F417xx || STM32F427xx || STM32F437xx || STM32F429xx || STM32F439xx */
367
368 #endif /* HAL_DAC_MODULE_ENABLED */
369
370 /**
371 * @}
372 */
373
374 /**
375 * @}
376 */
377
378 /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/