1 /**
2 ******************************************************************************
3 * @file stm32l5xx_ll_dac.c
4 * @author MCD Application Team
5 * @brief DAC LL module driver
6 ******************************************************************************
7 * @attention
8 *
9 * Copyright (c) 2019 STMicroelectronics.
10 * All rights reserved.
11 *
12 * This software is licensed under terms that can be found in the LICENSE file
13 * in the root directory of this software component.
14 * If no LICENSE file comes with this software, it is provided AS-IS.
15 *
16 ******************************************************************************
17 */
18 #if defined(USE_FULL_LL_DRIVER)
19
20 /* Includes ------------------------------------------------------------------*/
21 #include "stm32l5xx_ll_dac.h"
22 #include "stm32l5xx_ll_bus.h"
23
24 #ifdef USE_FULL_ASSERT
25 #include "stm32_assert.h"
26 #else
27 #define assert_param(expr) ((void)0U)
28 #endif /* USE_FULL_ASSERT */
29
30 /** @addtogroup STM32L5xx_LL_Driver
31 * @{
32 */
33
34 #if defined(DAC1)
35
36 /** @addtogroup DAC_LL DAC
37 * @{
38 */
39
40 /* Private types -------------------------------------------------------------*/
41 /* Private variables ---------------------------------------------------------*/
42 /* Private constants ---------------------------------------------------------*/
43 /* Private macros ------------------------------------------------------------*/
44
45 /** @addtogroup DAC_LL_Private_Macros
46 * @{
47 */
48 #define IS_LL_DAC_CHANNEL(__DAC_CHANNEL__) \
49 (((__DAC_CHANNEL__) == LL_DAC_CHANNEL_1) \
50 || ((__DAC_CHANNEL__) == LL_DAC_CHANNEL_2) \
51 )
52
53 #define IS_LL_DAC_TRIGGER_SOURCE(__TRIGGER_SOURCE__) \
54 (((__TRIGGER_SOURCE__) == LL_DAC_TRIG_EXT_TIM1_TRGO) \
55 || ((__TRIGGER_SOURCE__) == LL_DAC_TRIG_EXT_TIM2_TRGO) \
56 || ((__TRIGGER_SOURCE__) == LL_DAC_TRIG_EXT_TIM4_TRGO) \
57 || ((__TRIGGER_SOURCE__) == LL_DAC_TRIG_EXT_TIM5_TRGO) \
58 || ((__TRIGGER_SOURCE__) == LL_DAC_TRIG_EXT_TIM6_TRGO) \
59 || ((__TRIGGER_SOURCE__) == LL_DAC_TRIG_EXT_TIM7_TRGO) \
60 || ((__TRIGGER_SOURCE__) == LL_DAC_TRIG_EXT_TIM8_TRGO) \
61 || ((__TRIGGER_SOURCE__) == LL_DAC_TRIG_EXT_TIM15_TRGO) \
62 || ((__TRIGGER_SOURCE__) == LL_DAC_TRIG_EXT_LPTIM1_OUT) \
63 || ((__TRIGGER_SOURCE__) == LL_DAC_TRIG_EXT_LPTIM2_OUT) \
64 || ((__TRIGGER_SOURCE__) == LL_DAC_TRIG_EXT_EXTI_LINE9) \
65 || ((__TRIGGER_SOURCE__) == LL_DAC_TRIG_SOFTWARE) \
66 )
67
68 #define IS_LL_DAC_WAVE_AUTO_GENER_MODE(__WAVE_AUTO_GENERATION_MODE__) \
69 (((__WAVE_AUTO_GENERATION_MODE__) == LL_DAC_WAVE_AUTO_GENERATION_NONE) \
70 || ((__WAVE_AUTO_GENERATION_MODE__) == LL_DAC_WAVE_AUTO_GENERATION_NOISE) \
71 || ((__WAVE_AUTO_GENERATION_MODE__) == LL_DAC_WAVE_AUTO_GENERATION_TRIANGLE) \
72 )
73
74 #define IS_LL_DAC_WAVE_AUTO_GENER_CONFIG(__WAVE_AUTO_GENERATION_MODE__, __WAVE_AUTO_GENERATION_CONFIG__) \
75 ( (((__WAVE_AUTO_GENERATION_MODE__) == LL_DAC_WAVE_AUTO_GENERATION_NOISE) \
76 && (((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_NOISE_LFSR_UNMASK_BIT0) \
77 || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_NOISE_LFSR_UNMASK_BITS1_0) \
78 || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_NOISE_LFSR_UNMASK_BITS2_0) \
79 || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_NOISE_LFSR_UNMASK_BITS3_0) \
80 || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_NOISE_LFSR_UNMASK_BITS4_0) \
81 || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_NOISE_LFSR_UNMASK_BITS5_0) \
82 || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_NOISE_LFSR_UNMASK_BITS6_0) \
83 || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_NOISE_LFSR_UNMASK_BITS7_0) \
84 || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_NOISE_LFSR_UNMASK_BITS8_0) \
85 || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_NOISE_LFSR_UNMASK_BITS9_0) \
86 || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_NOISE_LFSR_UNMASK_BITS10_0) \
87 || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_NOISE_LFSR_UNMASK_BITS11_0)) \
88 ) \
89 ||(((__WAVE_AUTO_GENERATION_MODE__) == LL_DAC_WAVE_AUTO_GENERATION_TRIANGLE) \
90 && (((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_TRIANGLE_AMPLITUDE_1) \
91 || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_TRIANGLE_AMPLITUDE_3) \
92 || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_TRIANGLE_AMPLITUDE_7) \
93 || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_TRIANGLE_AMPLITUDE_15) \
94 || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_TRIANGLE_AMPLITUDE_31) \
95 || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_TRIANGLE_AMPLITUDE_63) \
96 || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_TRIANGLE_AMPLITUDE_127) \
97 || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_TRIANGLE_AMPLITUDE_255) \
98 || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_TRIANGLE_AMPLITUDE_511) \
99 || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_TRIANGLE_AMPLITUDE_1023) \
100 || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_TRIANGLE_AMPLITUDE_2047) \
101 || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_TRIANGLE_AMPLITUDE_4095)) \
102 ) \
103 )
104
105 #define IS_LL_DAC_OUTPUT_BUFFER(__OUTPUT_BUFFER__) \
106 (((__OUTPUT_BUFFER__) == LL_DAC_OUTPUT_BUFFER_ENABLE) \
107 || ((__OUTPUT_BUFFER__) == LL_DAC_OUTPUT_BUFFER_DISABLE) \
108 )
109
110 #define IS_LL_DAC_OUTPUT_CONNECTION(__OUTPUT_CONNECTION__) \
111 (((__OUTPUT_CONNECTION__) == LL_DAC_OUTPUT_CONNECT_GPIO) \
112 || ((__OUTPUT_CONNECTION__) == LL_DAC_OUTPUT_CONNECT_INTERNAL) \
113 )
114
115 #define IS_LL_DAC_OUTPUT_MODE(__OUTPUT_MODE__) \
116 (((__OUTPUT_MODE__) == LL_DAC_OUTPUT_MODE_NORMAL) \
117 || ((__OUTPUT_MODE__) == LL_DAC_OUTPUT_MODE_SAMPLE_AND_HOLD) \
118 )
119
120 /**
121 * @}
122 */
123
124
125 /* Private function prototypes -----------------------------------------------*/
126
127 /* Exported functions --------------------------------------------------------*/
128 /** @addtogroup DAC_LL_Exported_Functions
129 * @{
130 */
131
132 /** @addtogroup DAC_LL_EF_Init
133 * @{
134 */
135
136 /**
137 * @brief De-initialize registers of the selected DAC instance
138 * to their default reset values.
139 * @param DACx DAC instance
140 * @retval An ErrorStatus enumeration value:
141 * - SUCCESS: DAC registers are de-initialized
142 * - ERROR: not applicable
143 */
LL_DAC_DeInit(const DAC_TypeDef * DACx)144 ErrorStatus LL_DAC_DeInit(const DAC_TypeDef *DACx)
145 {
146 /* Check the parameters */
147 assert_param(IS_DAC_ALL_INSTANCE(DACx));
148
149 /* Force reset of DAC clock */
150 LL_APB1_GRP1_ForceReset(LL_APB1_GRP1_PERIPH_DAC1);
151
152 /* Release reset of DAC clock */
153 LL_APB1_GRP1_ReleaseReset(LL_APB1_GRP1_PERIPH_DAC1);
154
155 return SUCCESS;
156 }
157
158 /**
159 * @brief Initialize some features of DAC channel.
160 * @note @ref LL_DAC_Init() aims to ease basic configuration of a DAC channel.
161 * Leaving it ready to be enabled and output:
162 * a level by calling one of
163 * @ref LL_DAC_ConvertData12RightAligned
164 * @ref LL_DAC_ConvertData12LeftAligned
165 * @ref LL_DAC_ConvertData8RightAligned
166 * or one of the supported autogenerated wave.
167 * @note This function allows configuration of:
168 * - Output mode
169 * - Trigger
170 * - Wave generation
171 * @note The setting of these parameters by function @ref LL_DAC_Init()
172 * is conditioned to DAC state:
173 * DAC channel must be disabled.
174 * @param DACx DAC instance
175 * @param DAC_Channel This parameter can be one of the following values:
176 * @arg @ref LL_DAC_CHANNEL_1
177 * @arg @ref LL_DAC_CHANNEL_2
178 * @param DAC_InitStruct Pointer to a @ref LL_DAC_InitTypeDef structure
179 * @retval An ErrorStatus enumeration value:
180 * - SUCCESS: DAC registers are initialized
181 * - ERROR: DAC registers are not initialized
182 */
LL_DAC_Init(DAC_TypeDef * DACx,uint32_t DAC_Channel,const LL_DAC_InitTypeDef * DAC_InitStruct)183 ErrorStatus LL_DAC_Init(DAC_TypeDef *DACx, uint32_t DAC_Channel, const LL_DAC_InitTypeDef *DAC_InitStruct)
184 {
185 ErrorStatus status = SUCCESS;
186
187 /* Check the parameters */
188 assert_param(IS_DAC_ALL_INSTANCE(DACx));
189 assert_param(IS_LL_DAC_CHANNEL(DAC_Channel));
190 assert_param(IS_LL_DAC_TRIGGER_SOURCE(DAC_InitStruct->TriggerSource));
191 assert_param(IS_LL_DAC_OUTPUT_BUFFER(DAC_InitStruct->OutputBuffer));
192 assert_param(IS_LL_DAC_OUTPUT_CONNECTION(DAC_InitStruct->OutputConnection));
193 assert_param(IS_LL_DAC_OUTPUT_MODE(DAC_InitStruct->OutputMode));
194 assert_param(IS_LL_DAC_WAVE_AUTO_GENER_MODE(DAC_InitStruct->WaveAutoGeneration));
195 if (DAC_InitStruct->WaveAutoGeneration != LL_DAC_WAVE_AUTO_GENERATION_NONE)
196 {
197 assert_param(IS_LL_DAC_WAVE_AUTO_GENER_CONFIG(DAC_InitStruct->WaveAutoGeneration,
198 DAC_InitStruct->WaveAutoGenerationConfig));
199 }
200
201 /* Note: Hardware constraint (refer to description of this function) */
202 /* DAC instance must be disabled. */
203 if (LL_DAC_IsEnabled(DACx, DAC_Channel) == 0UL)
204 {
205 /* Configuration of DAC channel: */
206 /* - TriggerSource */
207 /* - WaveAutoGeneration */
208 /* - OutputBuffer */
209 /* - OutputConnection */
210 /* - OutputMode */
211 if (DAC_InitStruct->WaveAutoGeneration != LL_DAC_WAVE_AUTO_GENERATION_NONE)
212 {
213 MODIFY_REG(DACx->CR,
214 (DAC_CR_TSEL1
215 | DAC_CR_WAVE1
216 | DAC_CR_MAMP1
217 ) << (DAC_Channel & DAC_CR_CHX_BITOFFSET_MASK)
218 ,
219 (DAC_InitStruct->TriggerSource
220 | DAC_InitStruct->WaveAutoGeneration
221 | DAC_InitStruct->WaveAutoGenerationConfig
222 ) << (DAC_Channel & DAC_CR_CHX_BITOFFSET_MASK)
223 );
224 }
225 else
226 {
227 MODIFY_REG(DACx->CR,
228 (DAC_CR_TSEL1
229 | DAC_CR_WAVE1
230 ) << (DAC_Channel & DAC_CR_CHX_BITOFFSET_MASK)
231 ,
232 (DAC_InitStruct->TriggerSource
233 | LL_DAC_WAVE_AUTO_GENERATION_NONE
234 ) << (DAC_Channel & DAC_CR_CHX_BITOFFSET_MASK)
235 );
236 }
237 MODIFY_REG(DACx->MCR,
238 (DAC_MCR_MODE1_1
239 | DAC_MCR_MODE1_0
240 | DAC_MCR_MODE1_2
241 ) << (DAC_Channel & DAC_CR_CHX_BITOFFSET_MASK)
242 ,
243 (DAC_InitStruct->OutputBuffer
244 | DAC_InitStruct->OutputConnection
245 | DAC_InitStruct->OutputMode
246 ) << (DAC_Channel & DAC_CR_CHX_BITOFFSET_MASK)
247 );
248 }
249 else
250 {
251 /* Initialization error: DAC instance is not disabled. */
252 status = ERROR;
253 }
254 return status;
255 }
256
257 /**
258 * @brief Set each @ref LL_DAC_InitTypeDef field to default value.
259 * @param DAC_InitStruct pointer to a @ref LL_DAC_InitTypeDef structure
260 * whose fields will be set to default values.
261 * @retval None
262 */
LL_DAC_StructInit(LL_DAC_InitTypeDef * DAC_InitStruct)263 void LL_DAC_StructInit(LL_DAC_InitTypeDef *DAC_InitStruct)
264 {
265 /* Set DAC_InitStruct fields to default values */
266 DAC_InitStruct->TriggerSource = LL_DAC_TRIG_SOFTWARE;
267 DAC_InitStruct->WaveAutoGeneration = LL_DAC_WAVE_AUTO_GENERATION_NONE;
268 /* Note: Parameter discarded if wave auto generation is disabled, */
269 /* set anyway to its default value. */
270 DAC_InitStruct->WaveAutoGenerationConfig = LL_DAC_NOISE_LFSR_UNMASK_BIT0;
271 DAC_InitStruct->OutputBuffer = LL_DAC_OUTPUT_BUFFER_ENABLE;
272 DAC_InitStruct->OutputConnection = LL_DAC_OUTPUT_CONNECT_GPIO;
273 DAC_InitStruct->OutputMode = LL_DAC_OUTPUT_MODE_NORMAL;
274 }
275
276 /**
277 * @}
278 */
279
280 /**
281 * @}
282 */
283
284 /**
285 * @}
286 */
287
288 #endif /* DAC1 */
289
290 /**
291 * @}
292 */
293
294 #endif /* USE_FULL_LL_DRIVER */
295
