1 /**
2 ******************************************************************************
3 * @file stm32f2xx_ll_dac.c
4 * @author MCD Application Team
5 * @brief DAC LL module driver
6 ******************************************************************************
7 * @attention
8 *
9 * <h2><center>© 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 "stm32f2xx_ll_dac.h"
23 #include "stm32f2xx_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 STM32F2xx_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 #define IS_LL_DAC_CHANNEL(__DAC_CHANNEL__) \
50 ( ((__DAC_CHANNEL__) == LL_DAC_CHANNEL_1) \
51 || ((__DAC_CHANNEL__) == LL_DAC_CHANNEL_2) \
52 )
53
54 #define IS_LL_DAC_TRIGGER_SOURCE(__TRIGGER_SOURCE__) \
55 ( ((__TRIGGER_SOURCE__) == LL_DAC_TRIG_SOFTWARE) \
56 || ((__TRIGGER_SOURCE__) == LL_DAC_TRIG_EXT_TIM2_TRGO) \
57 || ((__TRIGGER_SOURCE__) == LL_DAC_TRIG_EXT_TIM4_TRGO) \
58 || ((__TRIGGER_SOURCE__) == LL_DAC_TRIG_EXT_TIM5_TRGO) \
59 || ((__TRIGGER_SOURCE__) == LL_DAC_TRIG_EXT_TIM6_TRGO) \
60 || ((__TRIGGER_SOURCE__) == LL_DAC_TRIG_EXT_TIM7_TRGO) \
61 || ((__TRIGGER_SOURCE__) == LL_DAC_TRIG_EXT_TIM8_TRGO) \
62 || ((__TRIGGER_SOURCE__) == LL_DAC_TRIG_EXT_EXTI_LINE9) \
63 )
64
65 #define IS_LL_DAC_WAVE_AUTO_GENER_MODE(__WAVE_AUTO_GENERATION_MODE__) \
66 ( ((__WAVE_AUTO_GENERATION_MODE__) == LL_DAC_WAVE_AUTO_GENERATION_NONE) \
67 || ((__WAVE_AUTO_GENERATION_MODE__) == LL_DAC_WAVE_AUTO_GENERATION_NOISE) \
68 || ((__WAVE_AUTO_GENERATION_MODE__) == LL_DAC_WAVE_AUTO_GENERATION_TRIANGLE) \
69 )
70
71 #define IS_LL_DAC_WAVE_AUTO_GENER_CONFIG(__WAVE_AUTO_GENERATION_MODE__, __WAVE_AUTO_GENERATION_CONFIG__) \
72 ( (((__WAVE_AUTO_GENERATION_MODE__) == LL_DAC_WAVE_AUTO_GENERATION_NOISE) \
73 && ( ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_NOISE_LFSR_UNMASK_BIT0) \
74 || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_NOISE_LFSR_UNMASK_BITS1_0) \
75 || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_NOISE_LFSR_UNMASK_BITS2_0) \
76 || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_NOISE_LFSR_UNMASK_BITS3_0) \
77 || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_NOISE_LFSR_UNMASK_BITS4_0) \
78 || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_NOISE_LFSR_UNMASK_BITS5_0) \
79 || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_NOISE_LFSR_UNMASK_BITS6_0) \
80 || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_NOISE_LFSR_UNMASK_BITS7_0) \
81 || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_NOISE_LFSR_UNMASK_BITS8_0) \
82 || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_NOISE_LFSR_UNMASK_BITS9_0) \
83 || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_NOISE_LFSR_UNMASK_BITS10_0) \
84 || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_NOISE_LFSR_UNMASK_BITS11_0)) \
85 ) \
86 ||(((__WAVE_AUTO_GENERATION_MODE__) == LL_DAC_WAVE_AUTO_GENERATION_TRIANGLE) \
87 && ( ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_TRIANGLE_AMPLITUDE_1) \
88 || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_TRIANGLE_AMPLITUDE_3) \
89 || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_TRIANGLE_AMPLITUDE_7) \
90 || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_TRIANGLE_AMPLITUDE_15) \
91 || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_TRIANGLE_AMPLITUDE_31) \
92 || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_TRIANGLE_AMPLITUDE_63) \
93 || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_TRIANGLE_AMPLITUDE_127) \
94 || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_TRIANGLE_AMPLITUDE_255) \
95 || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_TRIANGLE_AMPLITUDE_511) \
96 || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_TRIANGLE_AMPLITUDE_1023) \
97 || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_TRIANGLE_AMPLITUDE_2047) \
98 || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_TRIANGLE_AMPLITUDE_4095)) \
99 ) \
100 )
101
102 #define IS_LL_DAC_OUTPUT_BUFFER(__OUTPUT_BUFFER__) \
103 ( ((__OUTPUT_BUFFER__) == LL_DAC_OUTPUT_BUFFER_ENABLE) \
104 || ((__OUTPUT_BUFFER__) == LL_DAC_OUTPUT_BUFFER_DISABLE) \
105 )
106
107 /**
108 * @}
109 */
110
111
112 /* Private function prototypes -----------------------------------------------*/
113
114 /* Exported functions --------------------------------------------------------*/
115 /** @addtogroup DAC_LL_Exported_Functions
116 * @{
117 */
118
119 /** @addtogroup DAC_LL_EF_Init
120 * @{
121 */
122
123 /**
124 * @brief De-initialize registers of the selected DAC instance
125 * to their default reset values.
126 * @param DACx DAC instance
127 * @retval An ErrorStatus enumeration value:
128 * - SUCCESS: DAC registers are de-initialized
129 * - ERROR: not applicable
130 */
LL_DAC_DeInit(DAC_TypeDef * DACx)131 ErrorStatus LL_DAC_DeInit(DAC_TypeDef *DACx)
132 {
133 /* Check the parameters */
134 assert_param(IS_DAC_ALL_INSTANCE(DACx));
135
136 /* Force reset of DAC clock */
137 LL_APB1_GRP1_ForceReset(LL_APB1_GRP1_PERIPH_DAC1);
138
139 /* Release reset of DAC clock */
140 LL_APB1_GRP1_ReleaseReset(LL_APB1_GRP1_PERIPH_DAC1);
141
142 return SUCCESS;
143 }
144
145 /**
146 * @brief Initialize some features of DAC channel.
147 * @note @ref LL_DAC_Init() aims to ease basic configuration of a DAC channel.
148 * Leaving it ready to be enabled and output:
149 * a level by calling one of
150 * @ref LL_DAC_ConvertData12RightAligned
151 * @ref LL_DAC_ConvertData12LeftAligned
152 * @ref LL_DAC_ConvertData8RightAligned
153 * or one of the supported autogenerated wave.
154 * @note This function allows configuration of:
155 * - Output mode
156 * - Trigger
157 * - Wave generation
158 * @note The setting of these parameters by function @ref LL_DAC_Init()
159 * is conditioned to DAC state:
160 * DAC channel must be disabled.
161 * @param DACx DAC instance
162 * @param DAC_Channel This parameter can be one of the following values:
163 * @arg @ref LL_DAC_CHANNEL_1
164 * @arg @ref LL_DAC_CHANNEL_2
165 * @param DAC_InitStruct Pointer to a @ref LL_DAC_InitTypeDef structure
166 * @retval An ErrorStatus enumeration value:
167 * - SUCCESS: DAC registers are initialized
168 * - ERROR: DAC registers are not initialized
169 */
LL_DAC_Init(DAC_TypeDef * DACx,uint32_t DAC_Channel,LL_DAC_InitTypeDef * DAC_InitStruct)170 ErrorStatus LL_DAC_Init(DAC_TypeDef *DACx, uint32_t DAC_Channel, LL_DAC_InitTypeDef *DAC_InitStruct)
171 {
172 ErrorStatus status = SUCCESS;
173
174 /* Check the parameters */
175 assert_param(IS_DAC_ALL_INSTANCE(DACx));
176 assert_param(IS_LL_DAC_CHANNEL(DAC_Channel));
177 assert_param(IS_LL_DAC_TRIGGER_SOURCE(DAC_InitStruct->TriggerSource));
178 assert_param(IS_LL_DAC_OUTPUT_BUFFER(DAC_InitStruct->OutputBuffer));
179 assert_param(IS_LL_DAC_WAVE_AUTO_GENER_MODE(DAC_InitStruct->WaveAutoGeneration));
180 if (DAC_InitStruct->WaveAutoGeneration != LL_DAC_WAVE_AUTO_GENERATION_NONE)
181 {
182 assert_param(IS_LL_DAC_WAVE_AUTO_GENER_CONFIG(DAC_InitStruct->WaveAutoGeneration,
183 DAC_InitStruct->WaveAutoGenerationConfig));
184 }
185
186 /* Note: Hardware constraint (refer to description of this function) */
187 /* DAC instance must be disabled. */
188 if (LL_DAC_IsEnabled(DACx, DAC_Channel) == 0UL)
189 {
190 /* Configuration of DAC channel: */
191 /* - TriggerSource */
192 /* - WaveAutoGeneration */
193 /* - OutputBuffer */
194 /* - OutputMode */
195 if (DAC_InitStruct->WaveAutoGeneration != LL_DAC_WAVE_AUTO_GENERATION_NONE)
196 {
197 MODIFY_REG(DACx->CR,
198 (DAC_CR_TSEL1
199 | DAC_CR_WAVE1
200 | DAC_CR_MAMP1
201 | DAC_CR_BOFF1
202 ) << (DAC_Channel & DAC_CR_CHX_BITOFFSET_MASK)
203 ,
204 (DAC_InitStruct->TriggerSource
205 | DAC_InitStruct->WaveAutoGeneration
206 | DAC_InitStruct->WaveAutoGenerationConfig
207 | DAC_InitStruct->OutputBuffer
208 ) << (DAC_Channel & DAC_CR_CHX_BITOFFSET_MASK)
209 );
210 }
211 else
212 {
213 MODIFY_REG(DACx->CR,
214 (DAC_CR_TSEL1
215 | DAC_CR_WAVE1
216 | DAC_CR_BOFF1
217 ) << (DAC_Channel & DAC_CR_CHX_BITOFFSET_MASK)
218 ,
219 (DAC_InitStruct->TriggerSource
220 | LL_DAC_WAVE_AUTO_GENERATION_NONE
221 | DAC_InitStruct->OutputBuffer
222 ) << (DAC_Channel & DAC_CR_CHX_BITOFFSET_MASK)
223 );
224 }
225 }
226 else
227 {
228 /* Initialization error: DAC instance is not disabled. */
229 status = ERROR;
230 }
231 return status;
232 }
233
234 /**
235 * @brief Set each @ref LL_DAC_InitTypeDef field to default value.
236 * @param DAC_InitStruct pointer to a @ref LL_DAC_InitTypeDef structure
237 * whose fields will be set to default values.
238 * @retval None
239 */
LL_DAC_StructInit(LL_DAC_InitTypeDef * DAC_InitStruct)240 void LL_DAC_StructInit(LL_DAC_InitTypeDef *DAC_InitStruct)
241 {
242 /* Set DAC_InitStruct fields to default values */
243 DAC_InitStruct->TriggerSource = LL_DAC_TRIG_SOFTWARE;
244 DAC_InitStruct->WaveAutoGeneration = LL_DAC_WAVE_AUTO_GENERATION_NONE;
245 /* Note: Parameter discarded if wave auto generation is disabled, */
246 /* set anyway to its default value. */
247 DAC_InitStruct->WaveAutoGenerationConfig = LL_DAC_NOISE_LFSR_UNMASK_BIT0;
248 DAC_InitStruct->OutputBuffer = LL_DAC_OUTPUT_BUFFER_ENABLE;
249 }
250
251 /**
252 * @}
253 */
254
255 /**
256 * @}
257 */
258
259 /**
260 * @}
261 */
262
263 #endif /* DAC */
264
265 /**
266 * @}
267 */
268
269 #endif /* USE_FULL_LL_DRIVER */
270
271 /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
272
