1 /**
2 ******************************************************************************
3 * @file stm32f1xx_ll_dac.c
4 * @author MCD Application Team
5 * @brief DAC LL module driver
6 ******************************************************************************
7 * @attention
8 *
9 * Copyright (c) 2016 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 "stm32f1xx_ll_dac.h"
22 #include "stm32f1xx_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 STM32F1xx_LL_Driver
31 * @{
32 */
33
34 #if defined(DAC)
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_SOFTWARE) \
55 || ((__TRIGGER_SOURCE__) == LL_DAC_TRIG_EXT_TIM3_TRGO) \
56 || ((__TRIGGER_SOURCE__) == LL_DAC_TRIG_EXT_TIM15_TRGO) \
57 || ((__TRIGGER_SOURCE__) == LL_DAC_TRIG_EXT_TIM2_TRGO) \
58 || ((__TRIGGER_SOURCE__) == LL_DAC_TRIG_EXT_TIM4_TRGO) \
59 || ((__TRIGGER_SOURCE__) == LL_DAC_TRIG_EXT_TIM5_TRGO) \
60 || ((__TRIGGER_SOURCE__) == LL_DAC_TRIG_EXT_TIM6_TRGO) \
61 || ((__TRIGGER_SOURCE__) == LL_DAC_TRIG_EXT_TIM7_TRGO) \
62 || ((__TRIGGER_SOURCE__) == LL_DAC_TRIG_EXT_TIM8_TRGO) \
63 || ((__TRIGGER_SOURCE__) == LL_DAC_TRIG_EXT_EXTI_LINE9) \
64 )
65
66 #define IS_LL_DAC_WAVE_AUTO_GENER_MODE(__WAVE_AUTO_GENERATION_MODE__) \
67 (((__WAVE_AUTO_GENERATION_MODE__) == LL_DAC_WAVE_AUTO_GENERATION_NONE) \
68 || ((__WAVE_AUTO_GENERATION_MODE__) == LL_DAC_WAVE_AUTO_GENERATION_NOISE) \
69 || ((__WAVE_AUTO_GENERATION_MODE__) == LL_DAC_WAVE_AUTO_GENERATION_TRIANGLE) \
70 )
71
72 #define IS_LL_DAC_WAVE_AUTO_GENER_CONFIG(__WAVE_AUTO_GENERATION_MODE__, __WAVE_AUTO_GENERATION_CONFIG__) \
73 ( (((__WAVE_AUTO_GENERATION_MODE__) == LL_DAC_WAVE_AUTO_GENERATION_NOISE) \
74 && (((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_NOISE_LFSR_UNMASK_BIT0) \
75 || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_NOISE_LFSR_UNMASK_BITS1_0) \
76 || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_NOISE_LFSR_UNMASK_BITS2_0) \
77 || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_NOISE_LFSR_UNMASK_BITS3_0) \
78 || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_NOISE_LFSR_UNMASK_BITS4_0) \
79 || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_NOISE_LFSR_UNMASK_BITS5_0) \
80 || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_NOISE_LFSR_UNMASK_BITS6_0) \
81 || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_NOISE_LFSR_UNMASK_BITS7_0) \
82 || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_NOISE_LFSR_UNMASK_BITS8_0) \
83 || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_NOISE_LFSR_UNMASK_BITS9_0) \
84 || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_NOISE_LFSR_UNMASK_BITS10_0) \
85 || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_NOISE_LFSR_UNMASK_BITS11_0)) \
86 ) \
87 ||(((__WAVE_AUTO_GENERATION_MODE__) == LL_DAC_WAVE_AUTO_GENERATION_TRIANGLE) \
88 && (((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_TRIANGLE_AMPLITUDE_1) \
89 || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_TRIANGLE_AMPLITUDE_3) \
90 || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_TRIANGLE_AMPLITUDE_7) \
91 || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_TRIANGLE_AMPLITUDE_15) \
92 || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_TRIANGLE_AMPLITUDE_31) \
93 || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_TRIANGLE_AMPLITUDE_63) \
94 || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_TRIANGLE_AMPLITUDE_127) \
95 || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_TRIANGLE_AMPLITUDE_255) \
96 || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_TRIANGLE_AMPLITUDE_511) \
97 || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_TRIANGLE_AMPLITUDE_1023) \
98 || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_TRIANGLE_AMPLITUDE_2047) \
99 || ((__WAVE_AUTO_GENERATION_CONFIG__) == LL_DAC_TRIANGLE_AMPLITUDE_4095)) \
100 ) \
101 )
102
103 #define IS_LL_DAC_OUTPUT_BUFFER(__OUTPUT_BUFFER__) \
104 (((__OUTPUT_BUFFER__) == LL_DAC_OUTPUT_BUFFER_ENABLE) \
105 || ((__OUTPUT_BUFFER__) == LL_DAC_OUTPUT_BUFFER_DISABLE) \
106 )
107
108 /**
109 * @}
110 */
111
112
113 /* Private function prototypes -----------------------------------------------*/
114
115 /* Exported functions --------------------------------------------------------*/
116 /** @addtogroup DAC_LL_Exported_Functions
117 * @{
118 */
119
120 /** @addtogroup DAC_LL_EF_Init
121 * @{
122 */
123
124 /**
125 * @brief De-initialize registers of the selected DAC instance
126 * to their default reset values.
127 * @param DACx DAC instance
128 * @retval An ErrorStatus enumeration value:
129 * - SUCCESS: DAC registers are de-initialized
130 * - ERROR: not applicable
131 */
LL_DAC_DeInit(const DAC_TypeDef * DACx)132 ErrorStatus LL_DAC_DeInit(const DAC_TypeDef *DACx)
133 {
134 /* Check the parameters */
135 assert_param(IS_DAC_ALL_INSTANCE(DACx));
136
137 /* Force reset of DAC clock */
138 LL_APB1_GRP1_ForceReset(LL_APB1_GRP1_PERIPH_DAC1);
139
140 /* Release reset of DAC clock */
141 LL_APB1_GRP1_ReleaseReset(LL_APB1_GRP1_PERIPH_DAC1);
142
143 return SUCCESS;
144 }
145
146 /**
147 * @brief Initialize some features of DAC channel.
148 * @note @ref LL_DAC_Init() aims to ease basic configuration of a DAC channel.
149 * Leaving it ready to be enabled and output:
150 * a level by calling one of
151 * @ref LL_DAC_ConvertData12RightAligned
152 * @ref LL_DAC_ConvertData12LeftAligned
153 * @ref LL_DAC_ConvertData8RightAligned
154 * or one of the supported autogenerated wave.
155 * @note This function allows configuration of:
156 * - Output mode
157 * - Trigger
158 * - Wave generation
159 * @note The setting of these parameters by function @ref LL_DAC_Init()
160 * is conditioned to DAC state:
161 * DAC channel must be disabled.
162 * @param DACx DAC instance
163 * @param DAC_Channel This parameter can be one of the following values:
164 * @arg @ref LL_DAC_CHANNEL_1
165 * @arg @ref LL_DAC_CHANNEL_2
166 * @param DAC_InitStruct Pointer to a @ref LL_DAC_InitTypeDef structure
167 * @retval An ErrorStatus enumeration value:
168 * - SUCCESS: DAC registers are initialized
169 * - ERROR: DAC registers are not initialized
170 */
LL_DAC_Init(DAC_TypeDef * DACx,uint32_t DAC_Channel,const LL_DAC_InitTypeDef * DAC_InitStruct)171 ErrorStatus LL_DAC_Init(DAC_TypeDef *DACx, uint32_t DAC_Channel, const LL_DAC_InitTypeDef *DAC_InitStruct)
172 {
173 ErrorStatus status = SUCCESS;
174
175 /* Check the parameters */
176 assert_param(IS_DAC_ALL_INSTANCE(DACx));
177 assert_param(IS_LL_DAC_CHANNEL(DAC_Channel));
178 assert_param(IS_LL_DAC_TRIGGER_SOURCE(DAC_InitStruct->TriggerSource));
179 assert_param(IS_LL_DAC_OUTPUT_BUFFER(DAC_InitStruct->OutputBuffer));
180 assert_param(IS_LL_DAC_WAVE_AUTO_GENER_MODE(DAC_InitStruct->WaveAutoGeneration));
181 if (DAC_InitStruct->WaveAutoGeneration != LL_DAC_WAVE_AUTO_GENERATION_NONE)
182 {
183 assert_param(IS_LL_DAC_WAVE_AUTO_GENER_CONFIG(DAC_InitStruct->WaveAutoGeneration,
184 DAC_InitStruct->WaveAutoGenerationConfig));
185 }
186
187 /* Note: Hardware constraint (refer to description of this function) */
188 /* DAC instance must be disabled. */
189 if (LL_DAC_IsEnabled(DACx, DAC_Channel) == 0UL)
190 {
191 /* Configuration of DAC channel: */
192 /* - TriggerSource */
193 /* - WaveAutoGeneration */
194 /* - OutputBuffer */
195 /* - OutputMode */
196 if (DAC_InitStruct->WaveAutoGeneration != LL_DAC_WAVE_AUTO_GENERATION_NONE)
197 {
198 MODIFY_REG(DACx->CR,
199 (DAC_CR_TSEL1
200 | DAC_CR_WAVE1
201 | DAC_CR_MAMP1
202 | DAC_CR_BOFF1
203 ) << (DAC_Channel & DAC_CR_CHX_BITOFFSET_MASK)
204 ,
205 (DAC_InitStruct->TriggerSource
206 | DAC_InitStruct->WaveAutoGeneration
207 | DAC_InitStruct->WaveAutoGenerationConfig
208 | DAC_InitStruct->OutputBuffer
209 ) << (DAC_Channel & DAC_CR_CHX_BITOFFSET_MASK)
210 );
211 }
212 else
213 {
214 MODIFY_REG(DACx->CR,
215 (DAC_CR_TSEL1
216 | DAC_CR_WAVE1
217 | DAC_CR_BOFF1
218 ) << (DAC_Channel & DAC_CR_CHX_BITOFFSET_MASK)
219 ,
220 (DAC_InitStruct->TriggerSource
221 | LL_DAC_WAVE_AUTO_GENERATION_NONE
222 | DAC_InitStruct->OutputBuffer
223 ) << (DAC_Channel & DAC_CR_CHX_BITOFFSET_MASK)
224 );
225 }
226 }
227 else
228 {
229 /* Initialization error: DAC instance is not disabled. */
230 status = ERROR;
231 }
232 return status;
233 }
234
235 /**
236 * @brief Set each @ref LL_DAC_InitTypeDef field to default value.
237 * @param DAC_InitStruct pointer to a @ref LL_DAC_InitTypeDef structure
238 * whose fields will be set to default values.
239 * @retval None
240 */
LL_DAC_StructInit(LL_DAC_InitTypeDef * DAC_InitStruct)241 void LL_DAC_StructInit(LL_DAC_InitTypeDef *DAC_InitStruct)
242 {
243 /* Set DAC_InitStruct fields to default values */
244 DAC_InitStruct->TriggerSource = LL_DAC_TRIG_SOFTWARE;
245 DAC_InitStruct->WaveAutoGeneration = LL_DAC_WAVE_AUTO_GENERATION_NONE;
246 /* Note: Parameter discarded if wave auto generation is disabled, */
247 /* set anyway to its default value. */
248 DAC_InitStruct->WaveAutoGenerationConfig = LL_DAC_NOISE_LFSR_UNMASK_BIT0;
249 DAC_InitStruct->OutputBuffer = LL_DAC_OUTPUT_BUFFER_ENABLE;
250 }
251
252 /**
253 * @}
254 */
255
256 /**
257 * @}
258 */
259
260 /**
261 * @}
262 */
263
264 #endif /* DAC */
265
266 /**
267 * @}
268 */
269
270 #endif /* USE_FULL_LL_DRIVER */
271
