source: S-port/trunk/Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_ll_dac.c

Last change on this file was 1, checked in by AlexLir, 4 years ago
File size: 12.4 KB
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1/**
2 ******************************************************************************
3 * @file stm32f4xx_ll_dac.c
4 * @author MCD Application Team
5 * @brief DAC LL module driver
6 ******************************************************************************
7 * @attention
8 *
9 * <h2><center>&copy; Copyright (c) 2016 STMicroelectronics.
10 * All rights reserved.</center></h2>
11 *
12 * This software component is licensed by ST under BSD 3-Clause license,
13 * the "License"; You may not use this file except in compliance with the
14 * License. You may obtain a copy of the License at:
15 * opensource.org/licenses/BSD-3-Clause
16 *
17 ******************************************************************************
18 */
19#if defined(USE_FULL_LL_DRIVER)
20
21/* Includes ------------------------------------------------------------------*/
22#include "stm32f4xx_ll_dac.h"
23#include "stm32f4xx_ll_bus.h"
24
25#ifdef USE_FULL_ASSERT
26#include "stm32_assert.h"
27#else
28#define assert_param(expr) ((void)0U)
29#endif /* USE_FULL_ASSERT */
30
31/** @addtogroup STM32F4xx_LL_Driver
32 * @{
33 */
34
35#if defined(DAC)
36
37/** @addtogroup DAC_LL DAC
38 * @{
39 */
40
41/* Private types -------------------------------------------------------------*/
42/* Private variables ---------------------------------------------------------*/
43/* Private constants ---------------------------------------------------------*/
44/* Private macros ------------------------------------------------------------*/
45
46/** @addtogroup DAC_LL_Private_Macros
47 * @{
48 */
49#if defined(DAC_CHANNEL2_SUPPORT)
50#define IS_LL_DAC_CHANNEL(__DACX__, __DAC_CHANNEL__) \
51 ( \
52 ((__DAC_CHANNEL__) == LL_DAC_CHANNEL_1) \
53 || ((__DAC_CHANNEL__) == LL_DAC_CHANNEL_2) \
54 )
55#else
56#define IS_LL_DAC_CHANNEL(__DACX__, __DAC_CHANNEL__) \
57 ( \
58 ((__DAC_CHANNEL__) == LL_DAC_CHANNEL_1) \
59 )
60#endif /* DAC_CHANNEL2_SUPPORT */
61
62#define IS_LL_DAC_TRIGGER_SOURCE(__TRIGGER_SOURCE__) \
63 ( ((__TRIGGER_SOURCE__) == LL_DAC_TRIG_SOFTWARE) \
64 || ((__TRIGGER_SOURCE__) == LL_DAC_TRIG_EXT_TIM2_TRGO) \
65 || ((__TRIGGER_SOURCE__) == LL_DAC_TRIG_EXT_TIM4_TRGO) \
66 || ((__TRIGGER_SOURCE__) == LL_DAC_TRIG_EXT_TIM5_TRGO) \
67 || ((__TRIGGER_SOURCE__) == LL_DAC_TRIG_EXT_TIM6_TRGO) \
68 || ((__TRIGGER_SOURCE__) == LL_DAC_TRIG_EXT_TIM7_TRGO) \
69 || ((__TRIGGER_SOURCE__) == LL_DAC_TRIG_EXT_TIM8_TRGO) \
70 || ((__TRIGGER_SOURCE__) == LL_DAC_TRIG_EXT_EXTI_LINE9) \
71 )
72
73#define IS_LL_DAC_WAVE_AUTO_GENER_MODE(__WAVE_AUTO_GENERATION_MODE__) \
74 ( ((__WAVE_AUTO_GENERATION_MODE__) == LL_DAC_WAVE_AUTO_GENERATION_NONE) \
75 || ((__WAVE_AUTO_GENERATION_MODE__) == LL_DAC_WAVE_AUTO_GENERATION_NOISE) \
76 || ((__WAVE_AUTO_GENERATION_MODE__) == LL_DAC_WAVE_AUTO_GENERATION_TRIANGLE) \
77 )
78
79#define IS_LL_DAC_WAVE_AUTO_GENER_CONFIG(__WAVE_AUTO_GENERATION_MODE__, __WAVE_AUTO_GENERATION_CONFIG__) \
80 ( (((__WAVE_AUTO_GENERATION_MODE__) == LL_DAC_WAVE_AUTO_GENERATION_NOISE) \
81 && ( ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_NOISE_LFSR_UNMASK_BIT0) \
82 || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_NOISE_LFSR_UNMASK_BITS1_0) \
83 || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_NOISE_LFSR_UNMASK_BITS2_0) \
84 || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_NOISE_LFSR_UNMASK_BITS3_0) \
85 || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_NOISE_LFSR_UNMASK_BITS4_0) \
86 || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_NOISE_LFSR_UNMASK_BITS5_0) \
87 || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_NOISE_LFSR_UNMASK_BITS6_0) \
88 || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_NOISE_LFSR_UNMASK_BITS7_0) \
89 || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_NOISE_LFSR_UNMASK_BITS8_0) \
90 || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_NOISE_LFSR_UNMASK_BITS9_0) \
91 || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_NOISE_LFSR_UNMASK_BITS10_0) \
92 || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_NOISE_LFSR_UNMASK_BITS11_0)) \
93 ) \
94 ||(((__WAVE_AUTO_GENERATION_MODE__) == LL_DAC_WAVE_AUTO_GENERATION_TRIANGLE) \
95 && ( ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_TRIANGLE_AMPLITUDE_1) \
96 || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_TRIANGLE_AMPLITUDE_3) \
97 || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_TRIANGLE_AMPLITUDE_7) \
98 || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_TRIANGLE_AMPLITUDE_15) \
99 || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_TRIANGLE_AMPLITUDE_31) \
100 || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_TRIANGLE_AMPLITUDE_63) \
101 || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_TRIANGLE_AMPLITUDE_127) \
102 || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_TRIANGLE_AMPLITUDE_255) \
103 || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_TRIANGLE_AMPLITUDE_511) \
104 || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_TRIANGLE_AMPLITUDE_1023) \
105 || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_TRIANGLE_AMPLITUDE_2047) \
106 || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_TRIANGLE_AMPLITUDE_4095)) \
107 ) \
108 )
109
110#define IS_LL_DAC_OUTPUT_BUFFER(__OUTPUT_BUFFER__) \
111 ( ((__OUTPUT_BUFFER__) == LL_DAC_OUTPUT_BUFFER_ENABLE) \
112 || ((__OUTPUT_BUFFER__) == LL_DAC_OUTPUT_BUFFER_DISABLE) \
113 )
114
115/**
116 * @}
117 */
118
119
120/* Private function prototypes -----------------------------------------------*/
121
122/* Exported functions --------------------------------------------------------*/
123/** @addtogroup DAC_LL_Exported_Functions
124 * @{
125 */
126
127/** @addtogroup DAC_LL_EF_Init
128 * @{
129 */
130
131/**
132 * @brief De-initialize registers of the selected DAC instance
133 * to their default reset values.
134 * @param DACx DAC instance
135 * @retval An ErrorStatus enumeration value:
136 * - SUCCESS: DAC registers are de-initialized
137 * - ERROR: not applicable
138 */
139ErrorStatus LL_DAC_DeInit(DAC_TypeDef *DACx)
140{
141 /* Check the parameters */
142 assert_param(IS_DAC_ALL_INSTANCE(DACx));
143
144 /* Force reset of DAC clock */
145 LL_APB1_GRP1_ForceReset(LL_APB1_GRP1_PERIPH_DAC1);
146
147 /* Release reset of DAC clock */
148 LL_APB1_GRP1_ReleaseReset(LL_APB1_GRP1_PERIPH_DAC1);
149
150 return SUCCESS;
151}
152
153/**
154 * @brief Initialize some features of DAC channel.
155 * @note @ref LL_DAC_Init() aims to ease basic configuration of a DAC channel.
156 * Leaving it ready to be enabled and output:
157 * a level by calling one of
158 * @ref LL_DAC_ConvertData12RightAligned
159 * @ref LL_DAC_ConvertData12LeftAligned
160 * @ref LL_DAC_ConvertData8RightAligned
161 * or one of the supported autogenerated wave.
162 * @note This function allows configuration of:
163 * - Output mode
164 * - Trigger
165 * - Wave generation
166 * @note The setting of these parameters by function @ref LL_DAC_Init()
167 * is conditioned to DAC state:
168 * DAC channel must be disabled.
169 * @param DACx DAC instance
170 * @param DAC_Channel This parameter can be one of the following values:
171 * @arg @ref LL_DAC_CHANNEL_1
172 * @arg @ref LL_DAC_CHANNEL_2 (1)
173 *
174 * (1) On this STM32 serie, parameter not available on all devices.
175 * Refer to device datasheet for channels availability.
176 * @param DAC_InitStruct Pointer to a @ref LL_DAC_InitTypeDef structure
177 * @retval An ErrorStatus enumeration value:
178 * - SUCCESS: DAC registers are initialized
179 * - ERROR: DAC registers are not initialized
180 */
181ErrorStatus LL_DAC_Init(DAC_TypeDef *DACx, uint32_t DAC_Channel, LL_DAC_InitTypeDef *DAC_InitStruct)
182{
183 ErrorStatus status = SUCCESS;
184
185 /* Check the parameters */
186 assert_param(IS_DAC_ALL_INSTANCE(DACx));
187 assert_param(IS_LL_DAC_CHANNEL(DACx, DAC_Channel));
188 assert_param(IS_LL_DAC_TRIGGER_SOURCE(DAC_InitStruct->TriggerSource));
189 assert_param(IS_LL_DAC_OUTPUT_BUFFER(DAC_InitStruct->OutputBuffer));
190 assert_param(IS_LL_DAC_WAVE_AUTO_GENER_MODE(DAC_InitStruct->WaveAutoGeneration));
191 if (DAC_InitStruct->WaveAutoGeneration != LL_DAC_WAVE_AUTO_GENERATION_NONE)
192 {
193 assert_param(IS_LL_DAC_WAVE_AUTO_GENER_CONFIG(DAC_InitStruct->WaveAutoGeneration,
194 DAC_InitStruct->WaveAutoGenerationConfig));
195 }
196
197 /* Note: Hardware constraint (refer to description of this function) */
198 /* DAC instance must be disabled. */
199 if (LL_DAC_IsEnabled(DACx, DAC_Channel) == 0UL)
200 {
201 /* Configuration of DAC channel: */
202 /* - TriggerSource */
203 /* - WaveAutoGeneration */
204 /* - OutputBuffer */
205 /* - OutputMode */
206 if (DAC_InitStruct->WaveAutoGeneration != LL_DAC_WAVE_AUTO_GENERATION_NONE)
207 {
208 MODIFY_REG(DACx->CR,
209 (DAC_CR_TSEL1
210 | DAC_CR_WAVE1
211 | DAC_CR_MAMP1
212 | DAC_CR_BOFF1
213 ) << (DAC_Channel & DAC_CR_CHX_BITOFFSET_MASK)
214 ,
215 (DAC_InitStruct->TriggerSource
216 | DAC_InitStruct->WaveAutoGeneration
217 | DAC_InitStruct->WaveAutoGenerationConfig
218 | DAC_InitStruct->OutputBuffer
219 ) << (DAC_Channel & DAC_CR_CHX_BITOFFSET_MASK)
220 );
221 }
222 else
223 {
224 MODIFY_REG(DACx->CR,
225 (DAC_CR_TSEL1
226 | DAC_CR_WAVE1
227 | DAC_CR_BOFF1
228 ) << (DAC_Channel & DAC_CR_CHX_BITOFFSET_MASK)
229 ,
230 (DAC_InitStruct->TriggerSource
231 | LL_DAC_WAVE_AUTO_GENERATION_NONE
232 | DAC_InitStruct->OutputBuffer
233 ) << (DAC_Channel & DAC_CR_CHX_BITOFFSET_MASK)
234 );
235 }
236 }
237 else
238 {
239 /* Initialization error: DAC instance is not disabled. */
240 status = ERROR;
241 }
242 return status;
243}
244
245/**
246 * @brief Set each @ref LL_DAC_InitTypeDef field to default value.
247 * @param DAC_InitStruct pointer to a @ref LL_DAC_InitTypeDef structure
248 * whose fields will be set to default values.
249 * @retval None
250 */
251void LL_DAC_StructInit(LL_DAC_InitTypeDef *DAC_InitStruct)
252{
253 /* Set DAC_InitStruct fields to default values */
254 DAC_InitStruct->TriggerSource = LL_DAC_TRIG_SOFTWARE;
255 DAC_InitStruct->WaveAutoGeneration = LL_DAC_WAVE_AUTO_GENERATION_NONE;
256 /* Note: Parameter discarded if wave auto generation is disabled, */
257 /* set anyway to its default value. */
258 DAC_InitStruct->WaveAutoGenerationConfig = LL_DAC_NOISE_LFSR_UNMASK_BIT0;
259 DAC_InitStruct->OutputBuffer = LL_DAC_OUTPUT_BUFFER_ENABLE;
260}
261
262/**
263 * @}
264 */
265
266/**
267 * @}
268 */
269
270/**
271 * @}
272 */
273
274#endif /* DAC */
275
276/**
277 * @}
278 */
279
280#endif /* USE_FULL_LL_DRIVER */
281
282/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
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