1 /**
2 ******************************************************************************
3 * @file stm32g0xx_ll_dac.c
4 * @author MCD Application Team
5 * @brief DAC LL module driver
6 ******************************************************************************
7 * @attention
8 *
9 * Copyright (c) 2018 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 "stm32g0xx_ll_dac.h"
22 #include "stm32g0xx_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 STM32G0xx_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_SOFTWARE) \
55 || ((__TRIGGER_SOURCE__) == LL_DAC_TRIG_EXT_TIM1_TRGO) \
56 || ((__TRIGGER_SOURCE__) == LL_DAC_TRIG_EXT_TIM2_TRGO) \
57 || ((__TRIGGER_SOURCE__) == LL_DAC_TRIG_EXT_TIM3_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_TIM15_TRGO) \
61 || ((__TRIGGER_SOURCE__) == LL_DAC_TRIG_EXT_LPTIM1_OUT) \
62 || ((__TRIGGER_SOURCE__) == LL_DAC_TRIG_EXT_LPTIM2_OUT) \
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 #define IS_LL_DAC_OUTPUT_CONNECTION(__OUTPUT_CONNECTION__) \
109 (((__OUTPUT_CONNECTION__) == LL_DAC_OUTPUT_CONNECT_GPIO) \
110 || ((__OUTPUT_CONNECTION__) == LL_DAC_OUTPUT_CONNECT_INTERNAL) \
111 )
112
113 #define IS_LL_DAC_OUTPUT_MODE(__OUTPUT_MODE__) \
114 (((__OUTPUT_MODE__) == LL_DAC_OUTPUT_MODE_NORMAL) \
115 || ((__OUTPUT_MODE__) == LL_DAC_OUTPUT_MODE_SAMPLE_AND_HOLD) \
116 )
117
118 /**
119 * @}
120 */
121
122
123 /* Private function prototypes -----------------------------------------------*/
124
125 /* Exported functions --------------------------------------------------------*/
126 /** @addtogroup DAC_LL_Exported_Functions
127 * @{
128 */
129
130 /** @addtogroup DAC_LL_EF_Init
131 * @{
132 */
133
134 /**
135 * @brief De-initialize registers of the selected DAC instance
136 * to their default reset values.
137 * @param DACx DAC instance
138 * @retval An ErrorStatus enumeration value:
139 * - SUCCESS: DAC registers are de-initialized
140 * - ERROR: not applicable
141 */
LL_DAC_DeInit(const DAC_TypeDef * DACx)142 ErrorStatus LL_DAC_DeInit(const DAC_TypeDef *DACx)
143 {
144 /* Check the parameters */
145 assert_param(IS_DAC_ALL_INSTANCE(DACx));
146
147 /* Force reset of DAC clock */
148 LL_APB1_GRP1_ForceReset(LL_APB1_GRP1_PERIPH_DAC1);
149
150 /* Release reset of DAC clock */
151 LL_APB1_GRP1_ReleaseReset(LL_APB1_GRP1_PERIPH_DAC1);
152
153 return SUCCESS;
154 }
155
156 /**
157 * @brief Initialize some features of DAC channel.
158 * @note @ref LL_DAC_Init() aims to ease basic configuration of a DAC channel.
159 * Leaving it ready to be enabled and output:
160 * a level by calling one of
161 * @ref LL_DAC_ConvertData12RightAligned
162 * @ref LL_DAC_ConvertData12LeftAligned
163 * @ref LL_DAC_ConvertData8RightAligned
164 * or one of the supported autogenerated wave.
165 * @note This function allows configuration of:
166 * - Output mode
167 * - Trigger
168 * - Wave generation
169 * @note The setting of these parameters by function @ref LL_DAC_Init()
170 * is conditioned to DAC state:
171 * DAC channel must be disabled.
172 * @param DACx DAC instance
173 * @param DAC_Channel This parameter can be one of the following values:
174 * @arg @ref LL_DAC_CHANNEL_1
175 * @arg @ref LL_DAC_CHANNEL_2
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 */
LL_DAC_Init(DAC_TypeDef * DACx,uint32_t DAC_Channel,const LL_DAC_InitTypeDef * DAC_InitStruct)181 ErrorStatus LL_DAC_Init(DAC_TypeDef *DACx, uint32_t DAC_Channel, const 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(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_OUTPUT_CONNECTION(DAC_InitStruct->OutputConnection));
191 assert_param(IS_LL_DAC_OUTPUT_MODE(DAC_InitStruct->OutputMode));
192 assert_param(IS_LL_DAC_WAVE_AUTO_GENER_MODE(DAC_InitStruct->WaveAutoGeneration));
193 if (DAC_InitStruct->WaveAutoGeneration != LL_DAC_WAVE_AUTO_GENERATION_NONE)
194 {
195 assert_param(IS_LL_DAC_WAVE_AUTO_GENER_CONFIG(DAC_InitStruct->WaveAutoGeneration,
196 DAC_InitStruct->WaveAutoGenerationConfig));
197 }
198
199 /* Note: Hardware constraint (refer to description of this function) */
200 /* DAC instance must be disabled. */
201 if (LL_DAC_IsEnabled(DACx, DAC_Channel) == 0UL)
202 {
203 /* Configuration of DAC channel: */
204 /* - TriggerSource */
205 /* - WaveAutoGeneration */
206 /* - OutputBuffer */
207 /* - OutputConnection */
208 /* - OutputMode */
209 if (DAC_InitStruct->WaveAutoGeneration != LL_DAC_WAVE_AUTO_GENERATION_NONE)
210 {
211 MODIFY_REG(DACx->CR,
212 (DAC_CR_TSEL1
213 | DAC_CR_WAVE1
214 | DAC_CR_MAMP1
215 ) << (DAC_Channel & DAC_CR_CHX_BITOFFSET_MASK)
216 ,
217 (DAC_InitStruct->TriggerSource
218 | DAC_InitStruct->WaveAutoGeneration
219 | DAC_InitStruct->WaveAutoGenerationConfig
220 ) << (DAC_Channel & DAC_CR_CHX_BITOFFSET_MASK)
221 );
222 }
223 else
224 {
225 MODIFY_REG(DACx->CR,
226 (DAC_CR_TSEL1
227 | DAC_CR_WAVE1
228 ) << (DAC_Channel & DAC_CR_CHX_BITOFFSET_MASK)
229 ,
230 (DAC_InitStruct->TriggerSource
231 | LL_DAC_WAVE_AUTO_GENERATION_NONE
232 ) << (DAC_Channel & DAC_CR_CHX_BITOFFSET_MASK)
233 );
234 }
235 MODIFY_REG(DACx->MCR,
236 (DAC_MCR_MODE1_1
237 | DAC_MCR_MODE1_0
238 | DAC_MCR_MODE1_2
239 ) << (DAC_Channel & DAC_CR_CHX_BITOFFSET_MASK)
240 ,
241 (DAC_InitStruct->OutputBuffer
242 | DAC_InitStruct->OutputConnection
243 | DAC_InitStruct->OutputMode
244 ) << (DAC_Channel & DAC_CR_CHX_BITOFFSET_MASK)
245 );
246 }
247 else
248 {
249 /* Initialization error: DAC instance is not disabled. */
250 status = ERROR;
251 }
252 return status;
253 }
254
255 /**
256 * @brief Set each @ref LL_DAC_InitTypeDef field to default value.
257 * @param DAC_InitStruct pointer to a @ref LL_DAC_InitTypeDef structure
258 * whose fields will be set to default values.
259 * @retval None
260 */
LL_DAC_StructInit(LL_DAC_InitTypeDef * DAC_InitStruct)261 void LL_DAC_StructInit(LL_DAC_InitTypeDef *DAC_InitStruct)
262 {
263 /* Set DAC_InitStruct fields to default values */
264 DAC_InitStruct->TriggerSource = LL_DAC_TRIG_SOFTWARE;
265 DAC_InitStruct->WaveAutoGeneration = LL_DAC_WAVE_AUTO_GENERATION_NONE;
266 /* Note: Parameter discarded if wave auto generation is disabled, */
267 /* set anyway to its default value. */
268 DAC_InitStruct->WaveAutoGenerationConfig = LL_DAC_NOISE_LFSR_UNMASK_BIT0;
269 DAC_InitStruct->OutputBuffer = LL_DAC_OUTPUT_BUFFER_ENABLE;
270 DAC_InitStruct->OutputConnection = LL_DAC_OUTPUT_CONNECT_GPIO;
271 DAC_InitStruct->OutputMode = LL_DAC_OUTPUT_MODE_NORMAL;
272 }
273
274 /**
275 * @}
276 */
277
278 /**
279 * @}
280 */
281
282 /**
283 * @}
284 */
285
286 #endif /* DAC1 */
287
288 /**
289 * @}
290 */
291
292 #endif /* USE_FULL_LL_DRIVER */
293
