提交 | 用户 | age
|
bfc108
|
1 |
/**
|
Q |
2 |
******************************************************************************
|
|
3 |
* @file stm32f0xx_hal_dac.c
|
|
4 |
* @author MCD Application Team
|
|
5 |
* @brief DAC HAL module driver.
|
|
6 |
* This file provides firmware functions to manage the following
|
|
7 |
* functionalities of the Digital to Analog Converter (DAC) peripheral:
|
|
8 |
* + Initialization and de-initialization functions
|
|
9 |
* + IO operation functions
|
|
10 |
* + Peripheral Control functions
|
|
11 |
* + Peripheral State and Errors functions
|
|
12 |
*
|
|
13 |
*
|
|
14 |
@verbatim
|
|
15 |
==============================================================================
|
|
16 |
##### DAC Peripheral features #####
|
|
17 |
==============================================================================
|
|
18 |
[..]
|
|
19 |
*** DAC Channels ***
|
|
20 |
====================
|
|
21 |
[..]
|
|
22 |
STM32F0 devices integrates no, one or two 12-bit Digital Analog Converters.
|
|
23 |
STM32F05x devices have one converter (channel1)
|
|
24 |
STM32F07x & STM32F09x devices have two converters (i.e. channel1 & channel2)
|
|
25 |
|
|
26 |
When 2 converters are present (i.e. channel1 & channel2) they
|
|
27 |
can be used independently or simultaneously (dual mode):
|
|
28 |
(#) DAC channel1 with DAC_OUT1 (PA4) as output
|
|
29 |
(#) DAC channel2 with DAC_OUT2 (PA5) as output
|
|
30 |
|
|
31 |
*** DAC Triggers ***
|
|
32 |
====================
|
|
33 |
[..]
|
|
34 |
Digital to Analog conversion can be non-triggered using DAC_TRIGGER_NONE
|
|
35 |
and DAC_OUT1/DAC_OUT2 is available once writing to DHRx register.
|
|
36 |
[..]
|
|
37 |
Digital to Analog conversion can be triggered by:
|
|
38 |
(#) External event: EXTI Line 9 (any GPIOx_PIN_9) using DAC_TRIGGER_EXT_IT9.
|
|
39 |
The used pin (GPIOx_PIN_9) must be configured in input mode.
|
|
40 |
|
|
41 |
(#) Timers TRGO: TIM2, TIM3, TIM6, and TIM15
|
|
42 |
(DAC_TRIGGER_T2_TRGO, DAC_TRIGGER_T3_TRGO...)
|
|
43 |
|
|
44 |
(#) Software using DAC_TRIGGER_SOFTWARE
|
|
45 |
|
|
46 |
*** DAC Buffer mode feature ***
|
|
47 |
===============================
|
|
48 |
[..]
|
|
49 |
Each DAC channel integrates an output buffer that can be used to
|
|
50 |
reduce the output impedance, and to drive external loads directly
|
|
51 |
without having to add an external operational amplifier.
|
|
52 |
To enable, the output buffer use
|
|
53 |
sConfig.DAC_OutputBuffer = DAC_OUTPUTBUFFER_ENABLE;
|
|
54 |
[..]
|
|
55 |
(@) Refer to the device datasheet for more details about output
|
|
56 |
impedance value with and without output buffer.
|
|
57 |
|
|
58 |
*** GPIO configurations guidelines ***
|
|
59 |
=====================
|
|
60 |
[..]
|
|
61 |
When a DAC channel is used (ex channel1 on PA4) and the other is not
|
|
62 |
(ex channel1 on PA5 is configured in Analog and disabled).
|
|
63 |
Channel1 may disturb channel2 as coupling effect.
|
|
64 |
Note that there is no coupling on channel2 as soon as channel2 is turned on.
|
|
65 |
Coupling on adjacent channel could be avoided as follows:
|
|
66 |
when unused PA5 is configured as INPUT PULL-UP or DOWN.
|
|
67 |
PA5 is configured in ANALOG just before it is turned on.
|
|
68 |
|
|
69 |
*** DAC wave generation feature ***
|
|
70 |
===================================
|
|
71 |
[..]
|
|
72 |
Both DAC channels can be used to generate
|
|
73 |
(#) Noise wave
|
|
74 |
(#) Triangle wave
|
|
75 |
|
|
76 |
*** DAC data format ***
|
|
77 |
=======================
|
|
78 |
[..]
|
|
79 |
The DAC data format can be:
|
|
80 |
(#) 8-bit right alignment using DAC_ALIGN_8B_R
|
|
81 |
(#) 12-bit left alignment using DAC_ALIGN_12B_L
|
|
82 |
(#) 12-bit right alignment using DAC_ALIGN_12B_R
|
|
83 |
|
|
84 |
*** DAC data value to voltage correspondance ***
|
|
85 |
================================================
|
|
86 |
[..]
|
|
87 |
The analog output voltage on each DAC channel pin is determined
|
|
88 |
by the following equation:
|
|
89 |
[..]
|
|
90 |
DAC_OUTx = VREF+ * DOR / 4095
|
|
91 |
(+) with DOR is the Data Output Register
|
|
92 |
[..]
|
|
93 |
VEF+ is the input voltage reference (refer to the device datasheet)
|
|
94 |
[..]
|
|
95 |
e.g. To set DAC_OUT1 to 0.7V, use
|
|
96 |
(+) Assuming that VREF+ = 3.3V, DAC_OUT1 = (3.3 * 868) / 4095 = 0.7V
|
|
97 |
|
|
98 |
*** DMA requests ***
|
|
99 |
=====================
|
|
100 |
[..]
|
|
101 |
A DMA1 request can be generated when an external trigger (but not
|
|
102 |
a software trigger) occurs if DMA1 requests are enabled using
|
|
103 |
HAL_DAC_Start_DMA()
|
|
104 |
[..]
|
|
105 |
DMA1 requests are mapped as following:
|
|
106 |
(#) DAC channel1 : mapped on DMA1 channel3 which must be
|
|
107 |
already configured
|
|
108 |
(#) DAC channel2 : mapped on DMA1 channel4 which must be
|
|
109 |
already configured
|
|
110 |
|
|
111 |
(@) For Dual mode and specific signal (Triangle and noise) generation please
|
|
112 |
refer to Extended Features Driver description
|
|
113 |
STM32F0 devices with one channel (one converting capability) does not
|
|
114 |
support Dual mode and specific signal (Triangle and noise) generation.
|
|
115 |
|
|
116 |
##### How to use this driver #####
|
|
117 |
==============================================================================
|
|
118 |
[..]
|
|
119 |
(+) DAC APB clock must be enabled to get write access to DAC
|
|
120 |
registers using HAL_DAC_Init()
|
|
121 |
(+) Configure DAC_OUTx (DAC_OUT1: PA4, DAC_OUT2: PA5) in analog mode.
|
|
122 |
(+) Configure the DAC channel using HAL_DAC_ConfigChannel() function.
|
|
123 |
(+) Enable the DAC channel using HAL_DAC_Start() or HAL_DAC_Start_DMA() functions.
|
|
124 |
|
|
125 |
*** Polling mode IO operation ***
|
|
126 |
=================================
|
|
127 |
[..]
|
|
128 |
(+) Start the DAC peripheral using HAL_DAC_Start()
|
|
129 |
(+) To read the DAC last data output value, use the HAL_DAC_GetValue() function.
|
|
130 |
(+) Stop the DAC peripheral using HAL_DAC_Stop()
|
|
131 |
|
|
132 |
*** DMA mode IO operation ***
|
|
133 |
==============================
|
|
134 |
[..]
|
|
135 |
(+) Start the DAC peripheral using HAL_DAC_Start_DMA(), at this stage the user specify the length
|
|
136 |
of data to be transferred at each end of conversion
|
|
137 |
(+) At the middle of data transfer HAL_DAC_ConvHalfCpltCallbackCh1() or HAL_DACEx_ConvHalfCpltCallbackCh2()
|
|
138 |
function is executed and user can add his own code by customization of function pointer
|
|
139 |
HAL_DAC_ConvHalfCpltCallbackCh1() or HAL_DACEx_ConvHalfCpltCallbackCh2()
|
|
140 |
(+) At The end of data transfer HAL_DAC_ConvCpltCallbackCh1() or HAL_DACEx_ConvHalfCpltCallbackCh2()
|
|
141 |
function is executed and user can add his own code by customization of function pointer
|
|
142 |
HAL_DAC_ConvCpltCallbackCh1() or HAL_DACEx_ConvHalfCpltCallbackCh2()
|
|
143 |
(+) In case of transfer Error, HAL_DAC_ErrorCallbackCh1() function is executed and user can
|
|
144 |
add his own code by customization of function pointer HAL_DAC_ErrorCallbackCh1
|
|
145 |
(+) In case of DMA underrun, DAC interruption triggers and execute internal function HAL_DAC_IRQHandler.
|
|
146 |
HAL_DAC_DMAUnderrunCallbackCh1() or HAL_DACEx_DMAUnderrunCallbackCh2()
|
|
147 |
function is executed and user can add his own code by customization of function pointer
|
|
148 |
HAL_DAC_DMAUnderrunCallbackCh1() or HAL_DACEx_DMAUnderrunCallbackCh2() and
|
|
149 |
add his own code by customization of function pointer HAL_DAC_ErrorCallbackCh1()
|
|
150 |
(+) Stop the DAC peripheral using HAL_DAC_Stop_DMA()
|
|
151 |
|
|
152 |
*** DAC HAL driver macros list ***
|
|
153 |
=============================================
|
|
154 |
[..]
|
|
155 |
Below the list of most used macros in DAC HAL driver.
|
|
156 |
|
|
157 |
(+) __HAL_DAC_ENABLE : Enable the DAC peripheral
|
|
158 |
(+) __HAL_DAC_DISABLE : Disable the DAC peripheral
|
|
159 |
(+) __HAL_DAC_CLEAR_FLAG: Clear the DAC's pending flags
|
|
160 |
(+) __HAL_DAC_GET_FLAG: Get the selected DAC's flag status
|
|
161 |
|
|
162 |
[..]
|
|
163 |
(@) You can refer to the DAC HAL driver header file for more useful macros
|
|
164 |
|
|
165 |
@endverbatim
|
|
166 |
******************************************************************************
|
|
167 |
* @attention
|
|
168 |
*
|
|
169 |
* <h2><center>© COPYRIGHT(c) 2016 STMicroelectronics</center></h2>
|
|
170 |
*
|
|
171 |
* Redistribution and use in source and binary forms, with or without modification,
|
|
172 |
* are permitted provided that the following conditions are met:
|
|
173 |
* 1. Redistributions of source code must retain the above copyright notice,
|
|
174 |
* this list of conditions and the following disclaimer.
|
|
175 |
* 2. Redistributions in binary form must reproduce the above copyright notice,
|
|
176 |
* this list of conditions and the following disclaimer in the documentation
|
|
177 |
* and/or other materials provided with the distribution.
|
|
178 |
* 3. Neither the name of STMicroelectronics nor the names of its contributors
|
|
179 |
* may be used to endorse or promote products derived from this software
|
|
180 |
* without specific prior written permission.
|
|
181 |
*
|
|
182 |
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
|
|
183 |
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
184 |
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
|
|
185 |
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
|
|
186 |
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
187 |
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
|
|
188 |
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
|
|
189 |
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
|
|
190 |
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
|
|
191 |
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
192 |
*
|
|
193 |
******************************************************************************
|
|
194 |
*/
|
|
195 |
|
|
196 |
|
|
197 |
/* Includes ------------------------------------------------------------------*/
|
|
198 |
#include "stm32f0xx_hal.h"
|
|
199 |
|
|
200 |
/** @addtogroup STM32F0xx_HAL_Driver
|
|
201 |
* @{
|
|
202 |
*/
|
|
203 |
|
|
204 |
#ifdef HAL_DAC_MODULE_ENABLED
|
|
205 |
|
|
206 |
#if defined(STM32F051x8) || defined(STM32F058xx) || \
|
|
207 |
defined(STM32F071xB) || defined(STM32F072xB) || defined(STM32F078xx) || \
|
|
208 |
defined(STM32F091xC) || defined (STM32F098xx)
|
|
209 |
|
|
210 |
/** @defgroup DAC DAC
|
|
211 |
* @brief DAC driver modules
|
|
212 |
* @{
|
|
213 |
*/
|
|
214 |
|
|
215 |
/* Private typedef -----------------------------------------------------------*/
|
|
216 |
/* Private define ------------------------------------------------------------*/
|
|
217 |
/* Private macro -------------------------------------------------------------*/
|
|
218 |
/** @defgroup DAC_Private_Macros DAC Private Macros
|
|
219 |
* @{
|
|
220 |
*/
|
|
221 |
/**
|
|
222 |
* @}
|
|
223 |
*/
|
|
224 |
|
|
225 |
/* Private variables ---------------------------------------------------------*/
|
|
226 |
/* Private function prototypes -----------------------------------------------*/
|
|
227 |
/** @defgroup DAC_Private_Functions DAC Private Functions
|
|
228 |
* @{
|
|
229 |
*/
|
|
230 |
/**
|
|
231 |
* @}
|
|
232 |
*/
|
|
233 |
|
|
234 |
/* Exported functions -------------------------------------------------------*/
|
|
235 |
|
|
236 |
/** @defgroup DAC_Exported_Functions DAC Exported Functions
|
|
237 |
* @{
|
|
238 |
*/
|
|
239 |
|
|
240 |
/** @defgroup DAC_Exported_Functions_Group1 Initialization and de-initialization functions
|
|
241 |
* @brief Initialization and Configuration functions
|
|
242 |
*
|
|
243 |
@verbatim
|
|
244 |
==============================================================================
|
|
245 |
##### Initialization and de-initialization functions #####
|
|
246 |
==============================================================================
|
|
247 |
[..] This section provides functions allowing to:
|
|
248 |
(+) Initialize and configure the DAC.
|
|
249 |
(+) De-initialize the DAC.
|
|
250 |
|
|
251 |
@endverbatim
|
|
252 |
* @{
|
|
253 |
*/
|
|
254 |
|
|
255 |
/**
|
|
256 |
* @brief Initialize the DAC peripheral according to the specified parameters
|
|
257 |
* in the DAC_InitStruct and initialize the associated handle.
|
|
258 |
* @param hdac pointer to a DAC_HandleTypeDef structure that contains
|
|
259 |
* the configuration information for the specified DAC.
|
|
260 |
* @retval HAL status
|
|
261 |
*/
|
|
262 |
HAL_StatusTypeDef HAL_DAC_Init(DAC_HandleTypeDef* hdac)
|
|
263 |
{
|
|
264 |
/* Check DAC handle */
|
|
265 |
if(hdac == NULL)
|
|
266 |
{
|
|
267 |
return HAL_ERROR;
|
|
268 |
}
|
|
269 |
/* Check the parameters */
|
|
270 |
assert_param(IS_DAC_ALL_INSTANCE(hdac->Instance));
|
|
271 |
|
|
272 |
if(hdac->State == HAL_DAC_STATE_RESET)
|
|
273 |
{
|
|
274 |
/* Allocate lock resource and initialize it */
|
|
275 |
hdac->Lock = HAL_UNLOCKED;
|
|
276 |
|
|
277 |
/* Init the low level hardware */
|
|
278 |
HAL_DAC_MspInit(hdac);
|
|
279 |
}
|
|
280 |
|
|
281 |
/* Initialize the DAC state*/
|
|
282 |
hdac->State = HAL_DAC_STATE_BUSY;
|
|
283 |
|
|
284 |
/* Set DAC error code to none */
|
|
285 |
hdac->ErrorCode = HAL_DAC_ERROR_NONE;
|
|
286 |
|
|
287 |
/* Initialize the DAC state*/
|
|
288 |
hdac->State = HAL_DAC_STATE_READY;
|
|
289 |
|
|
290 |
/* Return function status */
|
|
291 |
return HAL_OK;
|
|
292 |
}
|
|
293 |
|
|
294 |
/**
|
|
295 |
* @brief Deinitialize the DAC peripheral registers to their default reset values.
|
|
296 |
* @param hdac pointer to a DAC_HandleTypeDef structure that contains
|
|
297 |
* the configuration information for the specified DAC.
|
|
298 |
* @retval HAL status
|
|
299 |
*/
|
|
300 |
HAL_StatusTypeDef HAL_DAC_DeInit(DAC_HandleTypeDef* hdac)
|
|
301 |
{
|
|
302 |
/* Check DAC handle */
|
|
303 |
if(hdac == NULL)
|
|
304 |
{
|
|
305 |
return HAL_ERROR;
|
|
306 |
}
|
|
307 |
|
|
308 |
/* Check the parameters */
|
|
309 |
assert_param(IS_DAC_ALL_INSTANCE(hdac->Instance));
|
|
310 |
|
|
311 |
/* Change DAC state */
|
|
312 |
hdac->State = HAL_DAC_STATE_BUSY;
|
|
313 |
|
|
314 |
/* DeInit the low level hardware */
|
|
315 |
HAL_DAC_MspDeInit(hdac);
|
|
316 |
|
|
317 |
/* Set DAC error code to none */
|
|
318 |
hdac->ErrorCode = HAL_DAC_ERROR_NONE;
|
|
319 |
|
|
320 |
/* Change DAC state */
|
|
321 |
hdac->State = HAL_DAC_STATE_RESET;
|
|
322 |
|
|
323 |
/* Release Lock */
|
|
324 |
__HAL_UNLOCK(hdac);
|
|
325 |
|
|
326 |
/* Return function status */
|
|
327 |
return HAL_OK;
|
|
328 |
}
|
|
329 |
|
|
330 |
/**
|
|
331 |
* @brief Initialize the DAC MSP.
|
|
332 |
* @param hdac pointer to a DAC_HandleTypeDef structure that contains
|
|
333 |
* the configuration information for the specified DAC.
|
|
334 |
* @retval None
|
|
335 |
*/
|
|
336 |
__weak void HAL_DAC_MspInit(DAC_HandleTypeDef* hdac)
|
|
337 |
{
|
|
338 |
/* Prevent unused argument(s) compilation warning */
|
|
339 |
UNUSED(hdac);
|
|
340 |
|
|
341 |
/* NOTE : This function should not be modified, when the callback is needed,
|
|
342 |
the HAL_DAC_MspInit could be implemented in the user file
|
|
343 |
*/
|
|
344 |
}
|
|
345 |
|
|
346 |
/**
|
|
347 |
* @brief DeInitialize the DAC MSP.
|
|
348 |
* @param hdac pointer to a DAC_HandleTypeDef structure that contains
|
|
349 |
* the configuration information for the specified DAC.
|
|
350 |
* @retval None
|
|
351 |
*/
|
|
352 |
__weak void HAL_DAC_MspDeInit(DAC_HandleTypeDef* hdac)
|
|
353 |
{
|
|
354 |
/* Prevent unused argument(s) compilation warning */
|
|
355 |
UNUSED(hdac);
|
|
356 |
|
|
357 |
/* NOTE : This function should not be modified, when the callback is needed,
|
|
358 |
the HAL_DAC_MspDeInit could be implemented in the user file
|
|
359 |
*/
|
|
360 |
}
|
|
361 |
|
|
362 |
/**
|
|
363 |
* @}
|
|
364 |
*/
|
|
365 |
|
|
366 |
/** @defgroup DAC_Exported_Functions_Group2 IO operation functions
|
|
367 |
* @brief IO operation functions
|
|
368 |
*
|
|
369 |
@verbatim
|
|
370 |
==============================================================================
|
|
371 |
##### IO operation functions #####
|
|
372 |
==============================================================================
|
|
373 |
[..] This section provides functions allowing to:
|
|
374 |
(+) Start conversion.
|
|
375 |
(+) Stop conversion.
|
|
376 |
(+) Start conversion and enable DMA transfer.
|
|
377 |
(+) Stop conversion and disable DMA transfer.
|
|
378 |
(+) Set the specified data holding register value for DAC channel.
|
|
379 |
|
|
380 |
@endverbatim
|
|
381 |
* @{
|
|
382 |
*/
|
|
383 |
|
|
384 |
/**
|
|
385 |
* @brief Enables DAC and starts conversion of channel.
|
|
386 |
* @param hdac pointer to a DAC_HandleTypeDef structure that contains
|
|
387 |
* the configuration information for the specified DAC.
|
|
388 |
* @param Channel The selected DAC channel.
|
|
389 |
* This parameter can be one of the following values:
|
|
390 |
* @arg DAC_CHANNEL_1: DAC Channel1 selected
|
|
391 |
* @arg DAC_CHANNEL_2: DAC Channel2 selected
|
|
392 |
* @retval HAL status
|
|
393 |
*/
|
|
394 |
__weak HAL_StatusTypeDef HAL_DAC_Start(DAC_HandleTypeDef* hdac, uint32_t Channel)
|
|
395 |
{
|
|
396 |
/* Prevent unused argument(s) compilation warning */
|
|
397 |
UNUSED(hdac);
|
|
398 |
UNUSED(Channel);
|
|
399 |
|
|
400 |
/* Note : This function is defined into this file for library reference. */
|
|
401 |
/* Function content is located into file stm32f0xx_hal_dac_ex.c */
|
|
402 |
|
|
403 |
/* Return error status as not implemented here */
|
|
404 |
return HAL_ERROR;
|
|
405 |
}
|
|
406 |
|
|
407 |
/**
|
|
408 |
* @brief Disables DAC and stop conversion of channel.
|
|
409 |
* @param hdac pointer to a DAC_HandleTypeDef structure that contains
|
|
410 |
* the configuration information for the specified DAC.
|
|
411 |
* @param Channel The selected DAC channel.
|
|
412 |
* This parameter can be one of the following values:
|
|
413 |
* @arg DAC_CHANNEL_1: DAC Channel1 selected
|
|
414 |
* @arg DAC_CHANNEL_2: DAC Channel2 selected
|
|
415 |
* @retval HAL status
|
|
416 |
*/
|
|
417 |
HAL_StatusTypeDef HAL_DAC_Stop(DAC_HandleTypeDef* hdac, uint32_t Channel)
|
|
418 |
{
|
|
419 |
/* Check the parameters */
|
|
420 |
assert_param(IS_DAC_CHANNEL(Channel));
|
|
421 |
|
|
422 |
/* Disable the Peripheral */
|
|
423 |
__HAL_DAC_DISABLE(hdac, Channel);
|
|
424 |
|
|
425 |
/* Change DAC state */
|
|
426 |
hdac->State = HAL_DAC_STATE_READY;
|
|
427 |
|
|
428 |
/* Return function status */
|
|
429 |
return HAL_OK;
|
|
430 |
}
|
|
431 |
|
|
432 |
/**
|
|
433 |
* @brief Enables DAC and starts conversion of channel.
|
|
434 |
* @param hdac pointer to a DAC_HandleTypeDef structure that contains
|
|
435 |
* the configuration information for the specified DAC.
|
|
436 |
* @param Channel The selected DAC channel.
|
|
437 |
* This parameter can be one of the following values:
|
|
438 |
* @arg DAC_CHANNEL_1: DAC Channel1 selected
|
|
439 |
* @arg DAC_CHANNEL_2: DAC Channel2 selected
|
|
440 |
* @param pData The destination peripheral Buffer address.
|
|
441 |
* @param Length The length of data to be transferred from memory to DAC peripheral
|
|
442 |
* @param Alignment Specifies the data alignment for DAC channel.
|
|
443 |
* This parameter can be one of the following values:
|
|
444 |
* @arg DAC_ALIGN_8B_R: 8bit right data alignment selected
|
|
445 |
* @arg DAC_ALIGN_12B_L: 12bit left data alignment selected
|
|
446 |
* @arg DAC_ALIGN_12B_R: 12bit right data alignment selected
|
|
447 |
* @retval HAL status
|
|
448 |
*/
|
|
449 |
__weak HAL_StatusTypeDef HAL_DAC_Start_DMA(DAC_HandleTypeDef* hdac, uint32_t Channel, uint32_t* pData, uint32_t Length, uint32_t Alignment)
|
|
450 |
{
|
|
451 |
/* Prevent unused argument(s) compilation warning */
|
|
452 |
UNUSED(hdac);
|
|
453 |
UNUSED(Channel);
|
|
454 |
UNUSED(pData);
|
|
455 |
UNUSED(Length);
|
|
456 |
UNUSED(Alignment);
|
|
457 |
|
|
458 |
/* Note : This function is defined into this file for library reference. */
|
|
459 |
/* Function content is located into file stm32f0xx_hal_dac_ex.c */
|
|
460 |
|
|
461 |
/* Return error status as not implemented here */
|
|
462 |
return HAL_ERROR;
|
|
463 |
}
|
|
464 |
|
|
465 |
/**
|
|
466 |
* @brief Disables DAC and stop conversion of channel.
|
|
467 |
* @param hdac pointer to a DAC_HandleTypeDef structure that contains
|
|
468 |
* the configuration information for the specified DAC.
|
|
469 |
* @param Channel The selected DAC channel.
|
|
470 |
* This parameter can be one of the following values:
|
|
471 |
* @arg DAC_CHANNEL_1: DAC Channel1 selected
|
|
472 |
* @arg DAC_CHANNEL_2: DAC Channel2 selected
|
|
473 |
* @retval HAL status
|
|
474 |
*/
|
|
475 |
HAL_StatusTypeDef HAL_DAC_Stop_DMA(DAC_HandleTypeDef* hdac, uint32_t Channel)
|
|
476 |
{
|
|
477 |
HAL_StatusTypeDef status = HAL_OK;
|
|
478 |
|
|
479 |
/* Check the parameters */
|
|
480 |
assert_param(IS_DAC_CHANNEL(Channel));
|
|
481 |
|
|
482 |
/* Disable the selected DAC channel DMA request */
|
|
483 |
hdac->Instance->CR &= ~(DAC_CR_DMAEN1 << Channel);
|
|
484 |
|
|
485 |
/* Disable the Peripheral */
|
|
486 |
__HAL_DAC_DISABLE(hdac, Channel);
|
|
487 |
|
|
488 |
/* Disable the DMA channel */
|
|
489 |
/* Channel1 is used */
|
|
490 |
if (Channel == DAC_CHANNEL_1)
|
|
491 |
{
|
|
492 |
/* Disable the DMA channel */
|
|
493 |
status = HAL_DMA_Abort(hdac->DMA_Handle1);
|
|
494 |
|
|
495 |
/* Disable the DAC DMA underrun interrupt */
|
|
496 |
__HAL_DAC_DISABLE_IT(hdac, DAC_IT_DMAUDR1);
|
|
497 |
}
|
|
498 |
|
|
499 |
#if defined(STM32F071xB) || defined(STM32F072xB) || defined(STM32F078xx) || \
|
|
500 |
defined(STM32F091xC) || defined (STM32F098xx)
|
|
501 |
/* Does not apply to STM32F051x8 & STM32F058xx */
|
|
502 |
|
|
503 |
else /* Channel2 is used for */
|
|
504 |
{
|
|
505 |
/* Disable the DMA channel */
|
|
506 |
status = HAL_DMA_Abort(hdac->DMA_Handle2);
|
|
507 |
|
|
508 |
/* Disable the DAC DMA underrun interrupt */
|
|
509 |
__HAL_DAC_DISABLE_IT(hdac, DAC_IT_DMAUDR2);
|
|
510 |
}
|
|
511 |
#endif /* STM32F071xB || STM32F072xB || STM32F078xx || */
|
|
512 |
/* STM32F091xC || STM32F098xx */
|
|
513 |
|
|
514 |
/* Check if DMA Channel effectively disabled */
|
|
515 |
if (status != HAL_OK)
|
|
516 |
{
|
|
517 |
/* Update DAC state machine to error */
|
|
518 |
hdac->State = HAL_DAC_STATE_ERROR;
|
|
519 |
}
|
|
520 |
else
|
|
521 |
{
|
|
522 |
/* Change DAC state */
|
|
523 |
hdac->State = HAL_DAC_STATE_READY;
|
|
524 |
}
|
|
525 |
|
|
526 |
/* Return function status */
|
|
527 |
return status;
|
|
528 |
}
|
|
529 |
|
|
530 |
/**
|
|
531 |
* @brief Handles DAC interrupt request
|
|
532 |
* @param hdac pointer to a DAC_HandleTypeDef structure that contains
|
|
533 |
* the configuration information for the specified DAC.
|
|
534 |
* @retval None
|
|
535 |
*/
|
|
536 |
__weak void HAL_DAC_IRQHandler(DAC_HandleTypeDef* hdac)
|
|
537 |
{
|
|
538 |
/* Prevent unused argument(s) compilation warning */
|
|
539 |
UNUSED(hdac);
|
|
540 |
|
|
541 |
/* Note : This function is defined into this file for library reference. */
|
|
542 |
/* Function content is located into file stm32f0xx_hal_dac_ex.c */
|
|
543 |
}
|
|
544 |
|
|
545 |
/**
|
|
546 |
* @brief Set the specified data holding register value for DAC channel.
|
|
547 |
* @param hdac pointer to a DAC_HandleTypeDef structure that contains
|
|
548 |
* the configuration information for the specified DAC.
|
|
549 |
* @param Channel The selected DAC channel.
|
|
550 |
* This parameter can be one of the following values:
|
|
551 |
* @arg DAC_CHANNEL_1: DAC Channel1 selected
|
|
552 |
* @arg DAC_CHANNEL_2: DAC Channel2 selected
|
|
553 |
* @param Alignment Specifies the data alignment.
|
|
554 |
* This parameter can be one of the following values:
|
|
555 |
* @arg DAC_ALIGN_8B_R: 8bit right data alignment selected
|
|
556 |
* @arg DAC_ALIGN_12B_L: 12bit left data alignment selected
|
|
557 |
* @arg DAC_ALIGN_12B_R: 12bit right data alignment selected
|
|
558 |
* @param Data Data to be loaded in the selected data holding register.
|
|
559 |
* @retval HAL status
|
|
560 |
*/
|
|
561 |
HAL_StatusTypeDef HAL_DAC_SetValue(DAC_HandleTypeDef* hdac, uint32_t Channel, uint32_t Alignment, uint32_t Data)
|
|
562 |
{
|
|
563 |
__IO uint32_t tmp = 0;
|
|
564 |
|
|
565 |
/* Check the parameters */
|
|
566 |
assert_param(IS_DAC_CHANNEL(Channel));
|
|
567 |
assert_param(IS_DAC_ALIGN(Alignment));
|
|
568 |
assert_param(IS_DAC_DATA(Data));
|
|
569 |
|
|
570 |
tmp = (uint32_t)hdac->Instance;
|
|
571 |
if(Channel == DAC_CHANNEL_1)
|
|
572 |
{
|
|
573 |
tmp += DAC_DHR12R1_ALIGNMENT(Alignment);
|
|
574 |
}
|
|
575 |
else
|
|
576 |
{
|
|
577 |
tmp += DAC_DHR12R2_ALIGNMENT(Alignment);
|
|
578 |
}
|
|
579 |
|
|
580 |
/* Set the DAC channel1 selected data holding register */
|
|
581 |
*(__IO uint32_t *) tmp = Data;
|
|
582 |
|
|
583 |
/* Return function status */
|
|
584 |
return HAL_OK;
|
|
585 |
}
|
|
586 |
|
|
587 |
/**
|
|
588 |
* @brief Conversion complete callback in non blocking mode for Channel1
|
|
589 |
* @param hdac pointer to a DAC_HandleTypeDef structure that contains
|
|
590 |
* the configuration information for the specified DAC.
|
|
591 |
* @retval None
|
|
592 |
*/
|
|
593 |
__weak void HAL_DAC_ConvCpltCallbackCh1(DAC_HandleTypeDef* hdac)
|
|
594 |
{
|
|
595 |
/* Prevent unused argument(s) compilation warning */
|
|
596 |
UNUSED(hdac);
|
|
597 |
|
|
598 |
/* NOTE : This function should not be modified, when the callback is needed,
|
|
599 |
the HAL_DAC_ConvCpltCallbackCh1 could be implemented in the user file
|
|
600 |
*/
|
|
601 |
}
|
|
602 |
|
|
603 |
/**
|
|
604 |
* @brief Conversion half DMA transfer callback in non-blocking mode for Channel1
|
|
605 |
* @param hdac pointer to a DAC_HandleTypeDef structure that contains
|
|
606 |
* the configuration information for the specified DAC.
|
|
607 |
* @retval None
|
|
608 |
*/
|
|
609 |
__weak void HAL_DAC_ConvHalfCpltCallbackCh1(DAC_HandleTypeDef* hdac)
|
|
610 |
{
|
|
611 |
/* Prevent unused argument(s) compilation warning */
|
|
612 |
UNUSED(hdac);
|
|
613 |
|
|
614 |
/* NOTE : This function should not be modified, when the callback is needed,
|
|
615 |
the HAL_DAC_ConvHalfCpltCallbackCh1 could be implemented in the user file
|
|
616 |
*/
|
|
617 |
}
|
|
618 |
|
|
619 |
/**
|
|
620 |
* @brief Error DAC callback for Channel1.
|
|
621 |
* @param hdac pointer to a DAC_HandleTypeDef structure that contains
|
|
622 |
* the configuration information for the specified DAC.
|
|
623 |
* @retval None
|
|
624 |
*/
|
|
625 |
__weak void HAL_DAC_ErrorCallbackCh1(DAC_HandleTypeDef *hdac)
|
|
626 |
{
|
|
627 |
/* Prevent unused argument(s) compilation warning */
|
|
628 |
UNUSED(hdac);
|
|
629 |
|
|
630 |
/* NOTE : This function should not be modified, when the callback is needed,
|
|
631 |
the HAL_DAC_ErrorCallbackCh1 could be implemented in the user file
|
|
632 |
*/
|
|
633 |
}
|
|
634 |
|
|
635 |
/**
|
|
636 |
* @brief DMA underrun DAC callback for channel1.
|
|
637 |
* @param hdac pointer to a DAC_HandleTypeDef structure that contains
|
|
638 |
* the configuration information for the specified DAC.
|
|
639 |
* @retval None
|
|
640 |
*/
|
|
641 |
__weak void HAL_DAC_DMAUnderrunCallbackCh1(DAC_HandleTypeDef *hdac)
|
|
642 |
{
|
|
643 |
/* Prevent unused argument(s) compilation warning */
|
|
644 |
UNUSED(hdac);
|
|
645 |
|
|
646 |
/* NOTE : This function should not be modified, when the callback is needed,
|
|
647 |
the HAL_DAC_DMAUnderrunCallbackCh1 could be implemented in the user file
|
|
648 |
*/
|
|
649 |
}
|
|
650 |
|
|
651 |
/**
|
|
652 |
* @}
|
|
653 |
*/
|
|
654 |
|
|
655 |
/** @defgroup DAC_Exported_Functions_Group3 Peripheral Control functions
|
|
656 |
* @brief Peripheral Control functions
|
|
657 |
*
|
|
658 |
@verbatim
|
|
659 |
==============================================================================
|
|
660 |
##### Peripheral Control functions #####
|
|
661 |
==============================================================================
|
|
662 |
[..] This section provides functions allowing to:
|
|
663 |
(+) Configure channels.
|
|
664 |
(+) Get result of conversion.
|
|
665 |
|
|
666 |
@endverbatim
|
|
667 |
* @{
|
|
668 |
*/
|
|
669 |
|
|
670 |
/**
|
|
671 |
* @brief Returns the last data output value of the selected DAC channel.
|
|
672 |
* @param hdac pointer to a DAC_HandleTypeDef structure that contains
|
|
673 |
* the configuration information for the specified DAC.
|
|
674 |
* @param Channel The selected DAC channel.
|
|
675 |
* This parameter can be one of the following values:
|
|
676 |
* @arg DAC_CHANNEL_1: DAC Channel1 selected
|
|
677 |
* @arg DAC_CHANNEL_2: DAC Channel2 selected
|
|
678 |
* @retval The selected DAC channel data output value.
|
|
679 |
*/
|
|
680 |
__weak uint32_t HAL_DAC_GetValue(DAC_HandleTypeDef* hdac, uint32_t Channel)
|
|
681 |
{
|
|
682 |
/* Prevent unused argument(s) compilation warning */
|
|
683 |
UNUSED(hdac);
|
|
684 |
UNUSED(Channel);
|
|
685 |
|
|
686 |
/* Note : This function is defined into this file for library reference. */
|
|
687 |
/* Function content is located into file stm32f0xx_hal_dac_ex.c */
|
|
688 |
|
|
689 |
/* Return error status as not implemented here */
|
|
690 |
return HAL_ERROR;
|
|
691 |
}
|
|
692 |
|
|
693 |
/**
|
|
694 |
* @brief Configures the selected DAC channel.
|
|
695 |
* @param hdac pointer to a DAC_HandleTypeDef structure that contains
|
|
696 |
* the configuration information for the specified DAC.
|
|
697 |
* @param sConfig DAC configuration structure.
|
|
698 |
* @param Channel The selected DAC channel.
|
|
699 |
* This parameter can be one of the following values:
|
|
700 |
* @arg DAC_CHANNEL_1: DAC Channel1 selected
|
|
701 |
* @arg DAC_CHANNEL_2: DAC Channel2 selected
|
|
702 |
* @retval HAL status
|
|
703 |
*/
|
|
704 |
__weak HAL_StatusTypeDef HAL_DAC_ConfigChannel(DAC_HandleTypeDef* hdac, DAC_ChannelConfTypeDef* sConfig, uint32_t Channel)
|
|
705 |
{
|
|
706 |
/* Prevent unused argument(s) compilation warning */
|
|
707 |
UNUSED(hdac);
|
|
708 |
UNUSED(sConfig);
|
|
709 |
UNUSED(Channel);
|
|
710 |
|
|
711 |
/* Note : This function is defined into this file for library reference. */
|
|
712 |
/* Function content is located into file stm32f0xx_hal_dac_ex.c */
|
|
713 |
|
|
714 |
/* Return error status as not implemented here */
|
|
715 |
return HAL_ERROR;
|
|
716 |
}
|
|
717 |
|
|
718 |
/**
|
|
719 |
* @}
|
|
720 |
*/
|
|
721 |
|
|
722 |
/** @defgroup DAC_Exported_Functions_Group4 Peripheral State and Errors functions
|
|
723 |
* @brief Peripheral State and Errors functions
|
|
724 |
*
|
|
725 |
@verbatim
|
|
726 |
==============================================================================
|
|
727 |
##### Peripheral State and Errors functions #####
|
|
728 |
==============================================================================
|
|
729 |
[..]
|
|
730 |
This subsection provides functions allowing to
|
|
731 |
(+) Check the DAC state.
|
|
732 |
(+) Check the DAC Errors.
|
|
733 |
|
|
734 |
@endverbatim
|
|
735 |
* @{
|
|
736 |
*/
|
|
737 |
|
|
738 |
/**
|
|
739 |
* @brief return the DAC handle state
|
|
740 |
* @param hdac pointer to a DAC_HandleTypeDef structure that contains
|
|
741 |
* the configuration information for the specified DAC.
|
|
742 |
* @retval HAL state
|
|
743 |
*/
|
|
744 |
HAL_DAC_StateTypeDef HAL_DAC_GetState(DAC_HandleTypeDef* hdac)
|
|
745 |
{
|
|
746 |
/* Return DAC handle state */
|
|
747 |
return hdac->State;
|
|
748 |
}
|
|
749 |
|
|
750 |
|
|
751 |
/**
|
|
752 |
* @brief Return the DAC error code
|
|
753 |
* @param hdac pointer to a DAC_HandleTypeDef structure that contains
|
|
754 |
* the configuration information for the specified DAC.
|
|
755 |
* @retval DAC Error Code
|
|
756 |
*/
|
|
757 |
uint32_t HAL_DAC_GetError(DAC_HandleTypeDef *hdac)
|
|
758 |
{
|
|
759 |
return hdac->ErrorCode;
|
|
760 |
}
|
|
761 |
|
|
762 |
/**
|
|
763 |
* @}
|
|
764 |
*/
|
|
765 |
|
|
766 |
|
|
767 |
/**
|
|
768 |
* @}
|
|
769 |
*/
|
|
770 |
|
|
771 |
/**
|
|
772 |
* @}
|
|
773 |
*/
|
|
774 |
#endif /* STM32F051x8 || STM32F058xx || */
|
|
775 |
/* STM32F071xB || STM32F072xB || STM32F078xx || */
|
|
776 |
/* STM32F091xC || STM32F098xx */
|
|
777 |
|
|
778 |
#endif /* HAL_DAC_MODULE_ENABLED */
|
|
779 |
|
|
780 |
/**
|
|
781 |
* @}
|
|
782 |
*/
|
|
783 |
|
|
784 |
|
|
785 |
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
|