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/**
2
  ******************************************************************************
3
  * @file    stm32l1xx_ll_opamp.h
4
  * @author  MCD Application Team
5
  * @brief   Header file of OPAMP LL module.
6
  ******************************************************************************
7
  * @attention
8
  *
9
  * <h2><center>&copy; Copyright (c) 2017 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
 
20
/* Define to prevent recursive inclusion -------------------------------------*/
21
#ifndef __STM32L1xx_LL_OPAMP_H
22
#define __STM32L1xx_LL_OPAMP_H
23
 
24
#ifdef __cplusplus
25
extern "C" {
26
#endif
27
 
28
/* Includes ------------------------------------------------------------------*/
29
#include "stm32l1xx.h"
30
 
31
/** @addtogroup STM32L1xx_LL_Driver
32
  * @{
33
  */
34
 
35
#if defined (OPAMP1) || defined (OPAMP2) || defined (OPAMP3) 
36
 
37
/** @defgroup OPAMP_LL OPAMP
38
  * @{
39
  */
40
 
41
/* Private types -------------------------------------------------------------*/
42
/* Private variables ---------------------------------------------------------*/
43
 
44
/* Private constants ---------------------------------------------------------*/
45
/** @defgroup OPAMP_LL_Private_Constants OPAMP Private Constants
46
  * @{
47
  */
48
 
49
/* Internal mask for OPAMP power mode:                                        */
50
/* To select into literal LL_OPAMP_POWERMODE_x the relevant bits for:         */
51
/* - OPAMP power mode into control register                                   */
52
/* - OPAMP trimming register offset                                           */
53
 
54
/* Internal register offset for OPAMP trimming configuration */
55
#define OPAMP_POWERMODE_OTR_REGOFFSET       (0x00000000U)
56
#define OPAMP_POWERMODE_LPOTR_REGOFFSET     (0x00000001U)
57
#define OPAMP_POWERMODE_OTR_REGOFFSET_MASK  (OPAMP_POWERMODE_OTR_REGOFFSET | OPAMP_POWERMODE_LPOTR_REGOFFSET)
58
 
59
/* Mask for OPAMP power mode into control register */
60
#define OPAMP_POWERMODE_CSR_BIT_MASK        (OPAMP_CSR_OPA1LPM)
61
 
62
/* Internal mask for OPAMP trimming of transistors differential pair NMOS     */
63
/* or PMOS.                                                                   */
64
/* To select into literal LL_OPAMP_TRIMMING_x the relevant bits for:          */
65
/* - OPAMP trimming selection of transistors differential pair                */
66
/* - OPAMP trimming values of transistors differential pair                   */
67
#define OPAMP_TRIMMING_SELECT_SW_OFFSET     (16U)
68
#define OPAMP_TRIMMING_SELECT_MASK          ((OPAMP_CSR_OPA1CAL_H | OPAMP_CSR_OPA1CAL_L) << OPAMP_TRIMMING_SELECT_SW_OFFSET)
69
#define OPAMP_TRIMMING_VALUE_MASK           (OPAMP_OTR_AO1_OPT_OFFSET_TRIM_HIGH | OPAMP_OTR_AO1_OPT_OFFSET_TRIM_LOW)
70
 
71
/**
72
  * @}
73
  */
74
 
75
 
76
/* Private macros ------------------------------------------------------------*/
77
/** @defgroup OPAMP_LL_Private_Macros OPAMP Private Macros
78
  * @{
79
  */
80
 
81
/**
82
  * @brief  Driver macro reserved for internal use: set a pointer to
83
  *         a register from a register basis from which an offset
84
  *         is applied.
85
  * @param  __REG__ Register basis from which the offset is applied.
86
  * @param  __REG_OFFSET__ Offset to be applied (unit: number of registers).
87
  * @retval Register address
88
*/
89
#define __OPAMP_PTR_REG_OFFSET(__REG__, __REG_OFFSET__)                        \
90
 ((uint32_t *)((uint32_t) ((uint32_t)(&(__REG__)) + ((__REG_OFFSET__) << 2U))))
91
 
92
/**
93
  * @brief  Driver macro reserved for internal use: from OPAMP instance
94
  *         selected, return the instance number in decimal format.
95
  * @param  __OPAMP_INSTANCE__ OPAMP instance
96
  * @retval Instance number in decimal format: value "0" for OPAMP1,
97
  *         value "1" for OPAMP2, value "2" for OPAMP3.
98
*/
99
#define __OPAMP_INSTANCE_DECIMAL(__OPAMP_INSTANCE__)                           \
100
  ((uint32_t)(__OPAMP_INSTANCE__) - OPAMP_BASE)
101
 
102
/**
103
  * @brief  Driver macro reserved for internal use: from OPAMP instance
104
  *         selected, set offset of bits into OPAMP register.
105
  * @note   Since all OPAMP instances are sharing the same register
106
  *         with 3 area of bits with an offset of 8 bits (except bits
107
  *         OPAxCALOUT, OPARANGE, S7SEL2), this function
108
  *         returns .
109
  * @param  __OPAMP_INSTANCE__ OPAMP instance
110
  * @retval Bits offset in register 32 bits: value "0" for OPAMP1,
111
  *         value "8" for OPAMP2, value "16" for OPAMP3
112
*/
113
#define __OPAMP_INSTANCE_BITOFFSET(__OPAMP_INSTANCE__)                         \
114
  (((uint32_t)(__OPAMP_INSTANCE__) - OPAMP_BASE) << 3U)
115
 
116
/**
117
  * @brief  Driver macro reserved for internal use: from OPAMP instance
118
  *         selected, return whether it corresponds to instance OPAMP2.
119
  * @param  __OPAMP_INSTANCE__ OPAMP instance
120
  * @retval Instance number in decimal format: value "0" for OPAMP1 or OPAMP3,
121
  *         value "1" for OPAMP2.
122
*/
123
#define __OPAMP_IS_INSTANCE_OPAMP2(__OPAMP_INSTANCE__)                         \
124
  (((uint32_t)(__OPAMP_INSTANCE__) - OPAMP_BASE) % 2)
125
 
126
/**
127
  * @}
128
  */
129
 
130
 
131
/* Exported types ------------------------------------------------------------*/
132
#if defined(USE_FULL_LL_DRIVER)
133
/** @defgroup OPAMP_LL_ES_INIT OPAMP Exported Init structure
134
  * @{
135
  */
136
 
137
/**
138
  * @brief  Structure definition of some features of OPAMP instance.
139
  */
140
typedef struct
141
{
142
  uint32_t PowerMode;                   /*!< Set OPAMP power mode.
143
                                             This parameter can be a value of @ref OPAMP_LL_EC_POWERMODE
144
 
145
                                             This feature can be modified afterwards using unitary function @ref LL_OPAMP_SetPowerMode(). */
146
 
147
  uint32_t FunctionalMode;              /*!< Set OPAMP functional mode by setting internal connections: OPAMP operation in standalone, follower, ...
148
                                             This parameter can be a value of @ref OPAMP_LL_EC_FUNCTIONAL_MODE
149
 
150
                                             This feature can be modified afterwards using unitary function @ref LL_OPAMP_SetFunctionalMode(). */
151
 
152
  uint32_t InputNonInverting;           /*!< Set OPAMP input non-inverting connection.
153
                                             This parameter can be a value of @ref OPAMP_LL_EC_INPUT_NONINVERTING
154
 
155
                                             This feature can be modified afterwards using unitary function @ref LL_OPAMP_SetInputNonInverting(). */
156
 
157
  uint32_t InputInverting;              /*!< Set OPAMP inverting input connection.
158
                                             This parameter can be a value of @ref OPAMP_LL_EC_INPUT_INVERTING
159
                                             @note OPAMP inverting input is used with OPAMP in mode standalone. Otherwise (OPAMP in mode follower), OPAMP inverting input is not used (not connected to GPIO pin), this parameter is discarded.
160
 
161
                                             This feature can be modified afterwards using unitary function @ref LL_OPAMP_SetInputInverting(). */
162
 
163
} LL_OPAMP_InitTypeDef;
164
 
165
/**
166
  * @}
167
  */
168
#endif /* USE_FULL_LL_DRIVER */
169
 
170
/* Exported constants --------------------------------------------------------*/
171
/** @defgroup OPAMP_LL_Exported_Constants OPAMP Exported Constants
172
  * @{
173
  */
174
 
175
/** @defgroup OPAMP_LL_EC_POWERSUPPLY_RANGE OPAMP power supply range
176
  * @{
177
  */
178
#define LL_OPAMP_POWERSUPPLY_RANGE_LOW  (0x00000000U)           /*!< Power supply range low. On STM32L1 serie: Vdda lower than 2.4V. */
179
#define LL_OPAMP_POWERSUPPLY_RANGE_HIGH (OPAMP_CSR_AOP_RANGE)   /*!< Power supply range high. On STM32L1 serie: Vdda higher than 2.4V. */
180
/**
181
  * @}
182
  */
183
 
184
/** @defgroup OPAMP_LL_EC_POWERMODE OPAMP power mode
185
  * @{
186
  */
187
#define LL_OPAMP_POWERMODE_NORMAL       (OPAMP_POWERMODE_OTR_REGOFFSET)                       /*!< OPAMP power mode normal */
188
#define LL_OPAMP_POWERMODE_LOWPOWER     (OPAMP_POWERMODE_LPOTR_REGOFFSET | OPAMP_CSR_OPA1LPM) /*!< OPAMP power mode low-power */
189
/**
190
  * @}
191
  */
192
 
193
/** @defgroup OPAMP_LL_EC_MODE OPAMP mode calibration or functional.
194
  * @{
195
  */
196
#define LL_OPAMP_MODE_FUNCTIONAL        (0x00000000U)                                                                                  /*!< OPAMP functional mode */
197
#define LL_OPAMP_MODE_CALIBRATION       (OPAMP_CSR_S3SEL1 | OPAMP_CSR_S4SEL1 | OPAMP_CSR_S5SEL1 | OPAMP_CSR_S6SEL1 | OPAMP_CSR_S7SEL2) /*!< OPAMP calibration mode (on STM32L1 serie, it corresponds to all OPAMP input internal switches opened) */
198
/**
199
  * @}
200
  */
201
 
202
/** @defgroup OPAMP_LL_EC_FUNCTIONAL_MODE OPAMP functional mode
203
  * @{
204
  */
205
#define LL_OPAMP_MODE_STANDALONE        (0x00000000U)           /*!< OPAMP functional mode, OPAMP operation in standalone (on STM32L1 serie, it corresponds to OPAMP internal switches S3 opened (switch SanB state depends on switch S4 state)) */
206
#define LL_OPAMP_MODE_FOLLOWER          (OPAMP_CSR_S3SEL1)      /*!< OPAMP functional mode, OPAMP operation in follower (on STM32L1 serie, it corresponds to OPAMP internal switches S3 and SanB closed) */
207
/**
208
  * @}
209
  */
210
 
211
/** @defgroup OPAMP_LL_EC_INPUT_NONINVERTING OPAMP input non-inverting
212
  * @{
213
  */
214
#define LL_OPAMP_INPUT_NONINVERT_IO0      (OPAMP_CSR_S5SEL1)      /*!< OPAMP non inverting input connected to GPIO pin (low leakage input) */
215
#define LL_OPAMP_INPUT_NONINV_DAC1_CH1    (OPAMP_CSR_S6SEL1)      /*!< OPAMP non inverting input connected to DAC1 channel1 output (specific to OPAMP instances: OPAMP1, OPAMP2) */
216
#define LL_OPAMP_INPUT_NONINV_DAC1_CH2    (OPAMP_CSR_S7SEL2)      /*!< OPAMP non inverting input connected to DAC1 channel2 output (specific to OPAMP instances: OPAMP2, OPAMP3) */
217
#if defined(OPAMP3)
218
#define LL_OPAMP_INPUT_NONINV_DAC1_CH2_OPAMP3 (OPAMP_CSR_S6SEL1)  /*!< OPAMP non inverting input connected to DAC1 channel2 output (specific to OPAMP instances: OPAMP3) */
219
#endif
220
/**
221
  * @}
222
  */
223
 
224
/** @defgroup OPAMP_LL_EC_INPUT_INVERTING OPAMP input inverting
225
  * @{
226
  */
227
#define LL_OPAMP_INPUT_INVERT_IO0        (OPAMP_CSR_S4SEL1)      /*!< OPAMP inverting input connected to GPIO pin (low leakage input). Note: OPAMP inverting input is used with OPAMP in mode standalone. Otherwise (OPAMP in mode follower), OPAMP inverting input is not used (not connected to GPIO pin). */
228
#define LL_OPAMP_INPUT_INVERT_IO1        (OPAMP_CSR_ANAWSEL1)    /*!< OPAMP inverting input connected to GPIO pin (alternative IO pin, not low leakage, availability depends on STM32L1 serie devices packages). Note: OPAMP inverting input is used with OPAMP in mode standalone. Otherwise (OPAMP in mode follower), OPAMP inverting input is not used (not connected to GPIO pin). */
229
#define LL_OPAMP_INPUT_INVERT_CONNECT_NO (0x00000000U)           /*!< OPAMP inverting input not externally connected (intended for OPAMP in mode follower) */
230
/**
231
  * @}
232
  */
233
 
234
/** @defgroup OPAMP_LL_EC_TRIMMING_MODE OPAMP trimming mode
235
  * @{
236
  */
237
#define LL_OPAMP_TRIMMING_FACTORY       (0x00000000U)           /*!< OPAMP trimming factors set to factory values */
238
#define LL_OPAMP_TRIMMING_USER          (OPAMP_OTR_OT_USER)     /*!< OPAMP trimming factors set to user values */
239
/**
240
  * @}
241
  */
242
 
243
/** @defgroup OPAMP_LL_EC_TRIMMING_TRANSISTORS_DIFF_PAIR OPAMP trimming of transistors differential pair NMOS or PMOS
244
  * @{
245
  */
246
#define LL_OPAMP_TRIMMING_NMOS          (OPAMP_OTR_AO1_OPT_OFFSET_TRIM_HIGH | (OPAMP_CSR_OPA1CAL_H << OPAMP_TRIMMING_SELECT_SW_OFFSET)) /*!< OPAMP trimming of transistors differential pair NMOS */
247
#define LL_OPAMP_TRIMMING_PMOS          (OPAMP_OTR_AO1_OPT_OFFSET_TRIM_LOW  | (OPAMP_CSR_OPA1CAL_L << OPAMP_TRIMMING_SELECT_SW_OFFSET)) /*!< OPAMP trimming of transistors differential pair PMOS */
248
#define LL_OPAMP_TRIMMING_NONE          (0x00000000U)                                                                                   /*!< OPAMP trimming unselect transistors differential pair NMOS and PMOs */
249
/**
250
  * @}
251
  */
252
 
253
/** @defgroup OPAMP_LL_EC_HW_DELAYS  Definitions of OPAMP hardware constraints delays
254
  * @note   Only OPAMP IP HW delays are defined in OPAMP LL driver driver,
255
  *         not timeout values.
256
  *         For details on delays values, refer to descriptions in source code
257
  *         above each literal definition.
258
  * @{
259
  */
260
 
261
/* Delay for OPAMP startup time (transition from state disable to enable).    */
262
/* Note: OPAMP startup time depends on board application environment:         */
263
/*       impedance connected to OPAMP output.                                 */
264
/*       The delay below is specified under conditions:                       */
265
/*        - OPAMP in mode low power                                           */
266
/*        - load impedance of 4kOhm (min), 50pF (max)                         */
267
/* Literal set to maximum value (refer to device datasheet,                   */
268
/* parameter "tWAKEUP").                                                      */
269
/* Unit: us                                                                   */
270
#define LL_OPAMP_DELAY_STARTUP_US         (30U)  /*!< Delay for OPAMP startup time */
271
 
272
/**
273
  * @}
274
  */
275
 
276
/**
277
  * @}
278
  */
279
 
280
/* Exported macro ------------------------------------------------------------*/
281
/** @defgroup OPAMP_LL_Exported_Macros OPAMP Exported Macros
282
  * @{
283
  */
284
/** @defgroup OPAMP_LL_EM_WRITE_READ Common write and read registers macro
285
  * @{
286
  */
287
/**
288
  * @brief  Write a value in OPAMP register
289
  * @param  __INSTANCE__ OPAMP Instance
290
  * @param  __REG__ Register to be written
291
  * @param  __VALUE__ Value to be written in the register
292
  * @retval None
293
  */
294
#define LL_OPAMP_WriteReg(__INSTANCE__, __REG__, __VALUE__) WRITE_REG(__INSTANCE__->__REG__, (__VALUE__))
295
 
296
/**
297
  * @brief  Read a value in OPAMP register
298
  * @param  __INSTANCE__ OPAMP Instance
299
  * @param  __REG__ Register to be read
300
  * @retval Register value
301
  */
302
#define LL_OPAMP_ReadReg(__INSTANCE__, __REG__) READ_REG(__INSTANCE__->__REG__)
303
/**
304
  * @}
305
  */
306
 
307
/** @defgroup OPAMP_LL_EM_HELPER_MACRO OPAMP helper macro
308
  * @{
309
  */
310
 
311
/**
312
  * @brief  Helper macro to select the OPAMP common instance
313
  *         to which is belonging the selected OPAMP instance.
314
  * @note   OPAMP common register instance can be used to
315
  *         set parameters common to several OPAMP instances.
316
  *         Refer to functions having argument "OPAMPxy_COMMON" as parameter.
317
  * @param  __OPAMPx__ OPAMP instance
318
  * @retval OPAMP common instance
319
  */
320
#if defined(OPAMP1) && defined(OPAMP2) && defined(OPAMP3)
321
#define __LL_OPAMP_COMMON_INSTANCE(__OPAMPx__)                                 \
322
  (OPAMP123_COMMON)
323
#else
324
#define __LL_OPAMP_COMMON_INSTANCE(__OPAMPx__)                                 \
325
  (OPAMP12_COMMON)
326
#endif
327
 
328
/**
329
  * @brief  Helper macro to check if all OPAMP instances sharing the same
330
  *         OPAMP common instance are disabled.
331
  * @note   This check is required by functions with setting conditioned to
332
  *         OPAMP state:
333
  *         All OPAMP instances of the OPAMP common group must be disabled.
334
  *         Refer to functions having argument "OPAMPxy_COMMON" as parameter.
335
  * @retval 0: All OPAMP instances sharing the same OPAMP common instance
336
  *            are disabled.
337
  *         1: At least one OPAMP instance sharing the same OPAMP common instance
338
  *            is enabled
339
  */
340
#if defined(OPAMP1) && defined(OPAMP2) && defined(OPAMP3)
341
#define __LL_OPAMP_IS_ENABLED_ALL_COMMON_INSTANCE()                            \
342
  (LL_OPAMP_IsEnabled(OPAMP1) |                                                \
343
   LL_OPAMP_IsEnabled(OPAMP2) |                                                \
344
   LL_OPAMP_IsEnabled(OPAMP3)  )
345
#else
346
#define __LL_OPAMP_IS_ENABLED_ALL_COMMON_INSTANCE()                            \
347
  (LL_OPAMP_IsEnabled(OPAMP1) |                                                \
348
   LL_OPAMP_IsEnabled(OPAMP2)  )
349
#endif
350
 
351
/**
352
  * @}
353
  */
354
 
355
/**
356
  * @}
357
  */
358
 
359
/* Exported functions --------------------------------------------------------*/
360
/** @defgroup OPAMP_LL_Exported_Functions OPAMP Exported Functions
361
  * @{
362
  */
363
 
364
/** @defgroup OPAMP_LL_EF_Configuration_opamp_common Configuration of OPAMP hierarchical scope: common to several OPAMP instances
365
  * @{
366
  */
367
 
368
/**
369
  * @brief  Set OPAMP power range.
370
  * @note   The OPAMP power range applies to several OPAMP instances
371
  *         (if several OPAMP instances available on the selected device).
372
  * @note   On this STM32 serie, setting of this feature is conditioned to
373
  *         OPAMP state:
374
  *         All OPAMP instances of the OPAMP common group must be disabled.
375
  *         This check can be done with function @ref LL_OPAMP_IsEnabled() for each
376
  *         OPAMP instance or by using helper macro
377
  *         @ref __LL_OPAMP_IS_ENABLED_ALL_COMMON_INSTANCE().
378
  * @rmtoll CSR      AOP_RANGE      LL_OPAMP_SetCommonPowerRange
379
  * @param  OPAMPxy_COMMON OPAMP common instance
380
  *         (can be set directly from CMSIS definition or by using helper macro @ref __LL_OPAMP_COMMON_INSTANCE() )
381
  * @param  PowerRange This parameter can be one of the following values:
382
  *         @arg @ref LL_OPAMP_POWERSUPPLY_RANGE_LOW
383
  *         @arg @ref LL_OPAMP_POWERSUPPLY_RANGE_HIGH
384
  * @retval None
385
  */
386
__STATIC_INLINE void LL_OPAMP_SetCommonPowerRange(OPAMP_Common_TypeDef *OPAMPxy_COMMON, uint32_t PowerRange)
387
{
388
  /* Prevent unused parameter warning */
389
  (void)(OPAMPxy_COMMON);
390
 
391
  MODIFY_REG(OPAMP->CSR, OPAMP_CSR_AOP_RANGE, PowerRange);
392
}
393
 
394
/**
395
  * @brief  Get OPAMP power range.
396
  * @note   The OPAMP power range applies to several OPAMP instances
397
  *         (if several OPAMP instances available on the selected device).
398
  * @rmtoll CSR      AOP_RANGE      LL_OPAMP_GetCommonPowerRange
399
  * @param  OPAMPxy_COMMON OPAMP common instance
400
  *         (can be set directly from CMSIS definition or by using helper macro @ref __LL_OPAMP_COMMON_INSTANCE() )
401
  * @retval Returned value can be one of the following values:
402
  *         @arg @ref LL_OPAMP_POWERSUPPLY_RANGE_LOW
403
  *         @arg @ref LL_OPAMP_POWERSUPPLY_RANGE_HIGH
404
  */
405
__STATIC_INLINE uint32_t LL_OPAMP_GetCommonPowerRange(OPAMP_Common_TypeDef *OPAMPxy_COMMON)
406
{
407
  /* Prevent unused parameter warning */
408
  (void)(OPAMPxy_COMMON);
409
 
410
  return (uint32_t)(READ_BIT(OPAMP->CSR, OPAMP_CSR_AOP_RANGE));
411
}
412
 
413
/**
414
  * @}
415
  */
416
 
417
/** @defgroup OPAMP_LL_EF_CONFIGURATION_OPAMP_INSTANCE Configuration of OPAMP hierarchical scope: OPAMP instance
418
  * @{
419
  */
420
 
421
/**
422
  * @brief  Set OPAMP power mode.
423
  * @note   The OPAMP must be disabled to change this configuration.
424
  * @rmtoll CSR      OPA1LPM        LL_OPAMP_SetPowerMode\n
425
  *         CSR      OPA2LPM        LL_OPAMP_SetPowerMode\n
426
  *         CSR      OPA3LPM        LL_OPAMP_SetPowerMode
427
  * @param  OPAMPx OPAMP instance
428
  * @param  PowerMode This parameter can be one of the following values:
429
  *         @arg @ref LL_OPAMP_POWERMODE_NORMAL
430
  *         @arg @ref LL_OPAMP_POWERMODE_LOWPOWER
431
  * @retval None
432
  */
433
__STATIC_INLINE void LL_OPAMP_SetPowerMode(OPAMP_TypeDef *OPAMPx, uint32_t PowerMode)
434
{
435
  MODIFY_REG(OPAMP->CSR,
436
             OPAMP_CSR_OPA1LPM << __OPAMP_INSTANCE_BITOFFSET(OPAMPx),
437
             (PowerMode & OPAMP_POWERMODE_CSR_BIT_MASK) << __OPAMP_INSTANCE_BITOFFSET(OPAMPx));
438
}
439
 
440
/**
441
  * @brief  Get OPAMP power mode.
442
  * @rmtoll CSR      OPA1LPM        LL_OPAMP_GetPowerMode\n
443
  *         CSR      OPA2LPM        LL_OPAMP_GetPowerMode\n
444
  *         CSR      OPA3LPM        LL_OPAMP_GetPowerMode
445
  * @param  OPAMPx OPAMP instance
446
  * @retval Returned value can be one of the following values:
447
  *         @arg @ref LL_OPAMP_POWERMODE_NORMAL
448
  *         @arg @ref LL_OPAMP_POWERMODE_LOWPOWER
449
  */
450
__STATIC_INLINE uint32_t LL_OPAMP_GetPowerMode(OPAMP_TypeDef *OPAMPx)
451
{
452
  uint32_t power_mode = (READ_BIT(OPAMP->CSR, OPAMP_CSR_OPA1LPM << __OPAMP_INSTANCE_BITOFFSET(OPAMPx)));
453
 
454
  /* Shift variable to position corresponding to bitfield of OPAMP1 */
455
  power_mode >>= __OPAMP_INSTANCE_BITOFFSET(OPAMPx);
456
 
457
  /* Construct data corresponding to literal LL_OPAMP_POWERMODE_x */
458
  return (uint32_t)(power_mode | (power_mode >> (POSITION_VAL(OPAMP_CSR_OPA1LPM))));
459
}
460
 
461
/**
462
  * @brief  Set OPAMP mode calibration or functional.
463
  * @note   OPAMP mode corresponds to functional or calibration mode:
464
  *          - functional mode: OPAMP operation in standalone, follower, ...
465
  *            Set functional mode using function
466
  *            @ref LL_OPAMP_SetFunctionalMode().
467
  *          - calibration mode: offset calibration of the selected
468
  *            transistors differential pair NMOS or PMOS.
469
  * @note   On this STM32 serie, entering in calibration mode makes
470
  *         loosing OPAMP internal switches configuration.
471
  *         Therefore, when going back to functional mode,
472
  *         functional mode must be set again using
473
  *         @ref LL_OPAMP_SetFunctionalMode().
474
  * @rmtoll CSR      S3SELx         LL_OPAMP_SetMode\n
475
  * @rmtoll CSR      S4SELx         LL_OPAMP_SetMode\n
476
  * @rmtoll CSR      S5SELx         LL_OPAMP_SetMode\n
477
  * @rmtoll CSR      S6SELx         LL_OPAMP_SetMode\n
478
  * @rmtoll CSR      S7SEL2         LL_OPAMP_SetMode
479
  * @param  OPAMPx OPAMP instance
480
  * @param  Mode This parameter can be one of the following values:
481
  *         @arg @ref LL_OPAMP_MODE_FUNCTIONAL
482
  *         @arg @ref LL_OPAMP_MODE_CALIBRATION
483
  * @retval None
484
  */
485
__STATIC_INLINE void LL_OPAMP_SetMode(OPAMP_TypeDef *OPAMPx, uint32_t Mode)
486
{
487
  CLEAR_BIT(OPAMP->CSR,
488
            ((Mode & ~OPAMP_CSR_S7SEL2) << __OPAMP_INSTANCE_BITOFFSET(OPAMPx)) | ((Mode & OPAMP_CSR_S7SEL2) * __OPAMP_IS_INSTANCE_OPAMP2(OPAMPx)));
489
}
490
 
491
/**
492
  * @brief  Get OPAMP mode calibration or functional.
493
  * @note   OPAMP mode corresponds to functional or calibration mode:
494
  *          - functional mode: OPAMP operation in standalone, follower, ...
495
  *            Set functional mode using function
496
  *            @ref LL_OPAMP_SetFunctionalMode().
497
  *          - calibration mode: offset calibration of the selected
498
  *            transistors differential pair NMOS or PMOS.
499
  * @rmtoll CSR      S3SELx         LL_OPAMP_SetMode\n
500
  * @rmtoll CSR      S4SELx         LL_OPAMP_SetMode\n
501
  * @rmtoll CSR      S5SELx         LL_OPAMP_SetMode\n
502
  * @rmtoll CSR      S6SELx         LL_OPAMP_SetMode\n
503
  * @rmtoll CSR      S7SEL2         LL_OPAMP_SetMode
504
  * @param  OPAMPx OPAMP instance
505
  * @retval Returned value can be one of the following values:
506
  *         @arg @ref LL_OPAMP_MODE_FUNCTIONAL
507
  *         @arg @ref LL_OPAMP_MODE_CALIBRATION
508
  */
509
__STATIC_INLINE uint32_t LL_OPAMP_GetMode(OPAMP_TypeDef *OPAMPx)
510
{
511
  return (uint32_t)(((READ_BIT(OPAMP->CSR,
512
                               ((LL_OPAMP_MODE_CALIBRATION & ~OPAMP_CSR_S7SEL2) << __OPAMP_INSTANCE_BITOFFSET(OPAMPx)) | (OPAMP_CSR_S7SEL2 * __OPAMP_IS_INSTANCE_OPAMP2(OPAMPx)))
513
                     ) == 0U) * LL_OPAMP_MODE_CALIBRATION);
514
}
515
 
516
/**
517
  * @brief  Set OPAMP functional mode by setting internal connections.
518
  *         OPAMP operation in standalone, follower, ...
519
  * @note   This function reset bit of calibration mode to ensure
520
  *         to be in functional mode, in order to have OPAMP parameters
521
  *         (inputs selection, ...) set with the corresponding OPAMP mode
522
  *         to be effective.
523
  * @rmtoll CSR      S3SELx        LL_OPAMP_SetFunctionalMode
524
  * @param  OPAMPx OPAMP instance
525
  * @param  FunctionalMode This parameter can be one of the following values:
526
  *         @arg @ref LL_OPAMP_MODE_STANDALONE
527
  *         @arg @ref LL_OPAMP_MODE_FOLLOWER
528
  * @retval None
529
  */
530
__STATIC_INLINE void LL_OPAMP_SetFunctionalMode(OPAMP_TypeDef *OPAMPx, uint32_t FunctionalMode)
531
{
532
  /* Note: Bits OPAMP_CSR_OPAxCAL_y reset to ensure to be in functional mode */
533
  MODIFY_REG(OPAMP->CSR,
534
             (OPAMP_CSR_S3SEL1 | OPAMP_CSR_OPA1CAL_H | OPAMP_CSR_OPA1CAL_L) << __OPAMP_INSTANCE_BITOFFSET(OPAMPx),
535
             FunctionalMode << __OPAMP_INSTANCE_BITOFFSET(OPAMPx));
536
}
537
 
538
/**
539
  * @brief  Get OPAMP functional mode from setting of internal connections.
540
  *         OPAMP operation in standalone, follower, ...
541
  * @rmtoll CSR      S3SELx        LL_OPAMP_GetFunctionalMode
542
  * @param  OPAMPx OPAMP instance
543
  * @retval Returned value can be one of the following values:
544
  *         @arg @ref LL_OPAMP_MODE_STANDALONE
545
  *         @arg @ref LL_OPAMP_MODE_FOLLOWER
546
  */
547
__STATIC_INLINE uint32_t LL_OPAMP_GetFunctionalMode(OPAMP_TypeDef *OPAMPx)
548
{
549
  return (uint32_t)(READ_BIT(OPAMP->CSR, OPAMP_CSR_S3SEL1 << __OPAMP_INSTANCE_BITOFFSET(OPAMPx))
550
                    >> __OPAMP_INSTANCE_BITOFFSET(OPAMPx)
551
                   );
552
}
553
 
554
/**
555
  * @}
556
  */
557
 
558
/** @defgroup OPAMP_LL_EF_CONFIGURATION_INPUTS Configuration of OPAMP inputs
559
  * @{
560
  */
561
 
562
/**
563
  * @brief  Set OPAMP non-inverting input connection.
564
  * @rmtoll CSR      S5SELx         LL_OPAMP_SetInputNonInverting\n
565
  * @rmtoll CSR      S6SELx         LL_OPAMP_SetInputNonInverting\n
566
  * @rmtoll CSR      S7SEL2         LL_OPAMP_SetInputNonInverting
567
  * @param  OPAMPx OPAMP instance
568
  * @param  InputNonInverting This parameter can be one of the following values:
569
  *         @arg @ref LL_OPAMP_INPUT_NONINVERT_IO0
570
  *         @arg @ref LL_OPAMP_INPUT_NONINV_DAC1_CH1 (1)
571
  *         @arg @ref LL_OPAMP_INPUT_NONINV_DAC1_CH2 (2)
572
  *        
573
  *         (1) Parameter specific to OPAMP instances: OPAMP1, OPAMP2.\n
574
  *         (2) Parameter specific to OPAMP instances: OPAMP2, OPAMP3.
575
  * @retval None
576
  */
577
__STATIC_INLINE void LL_OPAMP_SetInputNonInverting(OPAMP_TypeDef *OPAMPx, uint32_t InputNonInverting)
578
{
579
  MODIFY_REG(OPAMP->CSR,
580
             ((OPAMP_CSR_S5SEL1 | OPAMP_CSR_S6SEL1) << __OPAMP_INSTANCE_BITOFFSET(OPAMPx)) | (OPAMP_CSR_S7SEL2 * __OPAMP_IS_INSTANCE_OPAMP2(OPAMPx)),
581
             (InputNonInverting << __OPAMP_INSTANCE_BITOFFSET(OPAMPx)) | ((InputNonInverting & OPAMP_CSR_S7SEL2) * __OPAMP_IS_INSTANCE_OPAMP2(OPAMPx))
582
            );
583
}
584
 
585
/**
586
  * @brief  Get OPAMP non-inverting input connection.
587
  * @rmtoll CSR      S5SELx         LL_OPAMP_GetInputNonInverting\n
588
  * @rmtoll CSR      S6SELx         LL_OPAMP_GetInputNonInverting\n
589
  * @rmtoll CSR      S7SEL2         LL_OPAMP_GetInputNonInverting
590
  * @param  OPAMPx OPAMP instance
591
  * @retval Returned value can be one of the following values:
592
  *         @arg @ref LL_OPAMP_INPUT_NONINVERT_IO0
593
  *         @arg @ref LL_OPAMP_INPUT_NONINV_DAC1_CH1 (1)
594
  *         @arg @ref LL_OPAMP_INPUT_NONINV_DAC1_CH2 (2)
595
  *        
596
  *         (1) Parameter specific to OPAMP instances: OPAMP1, OPAMP2.\n
597
  *         (2) Parameter specific to OPAMP instances: OPAMP2, OPAMP3.
598
  */
599
__STATIC_INLINE uint32_t LL_OPAMP_GetInputNonInverting(OPAMP_TypeDef *OPAMPx)
600
{
601
  uint32_t input_non_inverting_opamp_x = READ_BIT(OPAMP->CSR,
602
                                                  (OPAMP_CSR_S5SEL1 | OPAMP_CSR_S6SEL1) << __OPAMP_INSTANCE_BITOFFSET(OPAMPx)
603
                                                  | (OPAMP_CSR_S7SEL2 * __OPAMP_IS_INSTANCE_OPAMP2(OPAMPx))
604
                                                 );
605
 
606
  return (((input_non_inverting_opamp_x & ~OPAMP_CSR_S7SEL2) >> __OPAMP_INSTANCE_BITOFFSET(OPAMPx)) | (input_non_inverting_opamp_x & OPAMP_CSR_S7SEL2));
607
}
608
 
609
/**
610
  * @brief  Set OPAMP inverting input connection.
611
  * @note   OPAMP inverting input is used with OPAMP in mode standalone.
612
  *         Otherwise (OPAMP in mode follower), OPAMP inverting input
613
  *         is not used (not connected to GPIO pin).
614
  * @rmtoll CSR      S4SELx         LL_OPAMP_SetInputInverting\n
615
  * @rmtoll CSR      ANAWSELx        LL_OPAMP_SetInputInverting
616
  * @param  OPAMPx OPAMP instance
617
  * @param  InputInverting This parameter can be one of the following values:
618
  *         @arg @ref LL_OPAMP_INPUT_INVERT_IO0
619
  *         @arg @ref LL_OPAMP_INPUT_INVERT_IO1        (1)
620
  *         @arg @ref LL_OPAMP_INPUT_INVERT_CONNECT_NO
621
  *        
622
  *         (1) Alternative IO pin, not low leakage, availability depends on STM32L1 serie devices packages.
623
  * @retval None
624
  */
625
__STATIC_INLINE void LL_OPAMP_SetInputInverting(OPAMP_TypeDef *OPAMPx, uint32_t InputInverting)
626
{
627
  MODIFY_REG(OPAMP->CSR,
628
             ((OPAMP_CSR_S4SEL1) << __OPAMP_INSTANCE_BITOFFSET(OPAMPx)) | ((OPAMP_CSR_ANAWSEL1) << __OPAMP_INSTANCE_DECIMAL(OPAMPx)),
629
             ((InputInverting & OPAMP_CSR_S4SEL1) << __OPAMP_INSTANCE_BITOFFSET(OPAMPx)) | ((InputInverting & OPAMP_CSR_ANAWSEL1) << __OPAMP_INSTANCE_DECIMAL(OPAMPx))
630
            );
631
}
632
 
633
/**
634
  * @brief  Get OPAMP inverting input connection.
635
  * @rmtoll CSR      S4SELx         LL_OPAMP_SetInputInverting\n
636
  * @rmtoll CSR      ANAWSELx        LL_OPAMP_SetInputInverting
637
  * @param  OPAMPx OPAMP instance
638
  * @retval Returned value can be one of the following values:
639
  *         @arg @ref LL_OPAMP_INPUT_INVERT_IO0
640
  *         @arg @ref LL_OPAMP_INPUT_INVERT_IO1        (1)
641
  *         @arg @ref LL_OPAMP_INPUT_INVERT_CONNECT_NO
642
  *        
643
  *         (1) Alternative IO pin, not low leakage, availability depends on STM32L1 serie devices packages.
644
  */
645
__STATIC_INLINE uint32_t LL_OPAMP_GetInputInverting(OPAMP_TypeDef *OPAMPx)
646
{
647
  uint32_t input_inverting_opamp_x = READ_BIT(OPAMP->CSR,
648
                                                (OPAMP_CSR_S4SEL1) << __OPAMP_INSTANCE_BITOFFSET(OPAMPx)
649
                                              | (OPAMP_CSR_ANAWSEL1) << __OPAMP_INSTANCE_DECIMAL(OPAMPx)
650
                                             );
651
 
652
#if defined(OPAMP3)
653
  return (  ((input_inverting_opamp_x & (OPAMP_CSR_S4SEL1 | OPAMP_CSR_S4SEL2 | OPAMP_CSR_S4SEL3)) >> __OPAMP_INSTANCE_BITOFFSET(OPAMPx))
654
          | ((input_inverting_opamp_x & (OPAMP_CSR_ANAWSEL1 | OPAMP_CSR_ANAWSEL2 | OPAMP_CSR_ANAWSEL3)) >> __OPAMP_INSTANCE_DECIMAL(OPAMPx)));
655
#else
656
  return (  ((input_inverting_opamp_x & (OPAMP_CSR_S4SEL1 | OPAMP_CSR_S4SEL2)) >> __OPAMP_INSTANCE_BITOFFSET(OPAMPx))
657
          | ((input_inverting_opamp_x & (OPAMP_CSR_ANAWSEL1 | OPAMP_CSR_ANAWSEL2)) >> __OPAMP_INSTANCE_DECIMAL(OPAMPx)));
658
#endif
659
}
660
 
661
/**
662
  * @}
663
  */
664
 
665
/** @defgroup OPAMP_LL_EF_OPAMP_TRIMMING Configuration and operation of OPAMP trimming
666
  * @{
667
  */
668
 
669
/**
670
  * @brief  Set OPAMP trimming mode.
671
  * @note   The OPAMP trimming mode applies to several OPAMP instances
672
  *         (if several OPAMP instances available on the selected device).
673
  * @rmtoll OTR      OT_USER        LL_OPAMP_SetCommonTrimmingMode
674
  * @param  OPAMPxy_COMMON OPAMP common instance
675
  *         (can be set directly from CMSIS definition or by using helper macro @ref __LL_OPAMP_COMMON_INSTANCE() )
676
  * @param  TrimmingMode This parameter can be one of the following values:
677
  *         @arg @ref LL_OPAMP_TRIMMING_FACTORY
678
  *         @arg @ref LL_OPAMP_TRIMMING_USER
679
  * @retval None
680
  */
681
__STATIC_INLINE void LL_OPAMP_SetCommonTrimmingMode(OPAMP_Common_TypeDef *OPAMPxy_COMMON, uint32_t TrimmingMode)
682
{
683
  /* Note: On STM32L1 serie, OPAMP trimming mode bit "OPAMP_OTR_OT_USER" is   */
684
  /*       write only, cannot be read.                                        */
685
  MODIFY_REG(OPAMPxy_COMMON->OTR,
686
             OPAMP_OTR_OT_USER,
687
             TrimmingMode);
688
}
689
 
690
/**
691
  * @brief  Get OPAMP trimming mode.
692
  * @note   The OPAMP trimming mode applies to several OPAMP instances
693
  *         (if several OPAMP instances available on the selected device).
694
  * @rmtoll OTR      OT_USER        LL_OPAMP_GetCommonTrimmingMode
695
  * @param  OPAMPxy_COMMON OPAMP common instance
696
  *         (can be set directly from CMSIS definition or by using helper macro @ref __LL_OPAMP_COMMON_INSTANCE() )
697
  * @retval Returned value can be one of the following values:
698
  *         @arg @ref LL_OPAMP_TRIMMING_FACTORY
699
  *         @arg @ref LL_OPAMP_TRIMMING_USER
700
  */
701
__STATIC_INLINE uint32_t LL_OPAMP_GetCommonTrimmingMode(OPAMP_Common_TypeDef *OPAMPxy_COMMON)
702
{
703
  return (uint32_t)(READ_BIT(OPAMPxy_COMMON->OTR, OPAMP_OTR_OT_USER));
704
}
705
 
706
/**
707
  * @brief  Set OPAMP offset to calibrate the selected transistors
708
  *         differential pair NMOS or PMOS.
709
  * @note   Preliminarily, OPAMP must be set in mode calibration
710
  *         using function @ref LL_OPAMP_SetMode().
711
  * @rmtoll CSR      OPA1CAL_H      LL_OPAMP_SetCalibrationSelection\n
712
  *         CSR      OPA1CAL_L      LL_OPAMP_SetCalibrationSelection
713
  * @param  OPAMPx OPAMP instance
714
  * @param  TransistorsDiffPair This parameter can be one of the following values:
715
  *         @arg @ref LL_OPAMP_TRIMMING_NMOS
716
  *         @arg @ref LL_OPAMP_TRIMMING_PMOS
717
  *         @arg @ref LL_OPAMP_TRIMMING_NONE
718
  * @retval None
719
  */
720
__STATIC_INLINE void LL_OPAMP_SetCalibrationSelection(OPAMP_TypeDef *OPAMPx, uint32_t TransistorsDiffPair)
721
{
722
  /* Parameter used with mask "OPAMP_TRIMMING_SELECT_MASK" because            */
723
  /* containing other bits reserved for other purpose.                        */
724
  MODIFY_REG(OPAMP->CSR,
725
             (OPAMP_CSR_OPA1CAL_H | OPAMP_CSR_OPA1CAL_L) << __OPAMP_INSTANCE_BITOFFSET(OPAMPx),
726
             ((TransistorsDiffPair & OPAMP_TRIMMING_SELECT_MASK) >> OPAMP_TRIMMING_SELECT_SW_OFFSET) << __OPAMP_INSTANCE_BITOFFSET(OPAMPx)
727
            );
728
}
729
 
730
/**
731
  * @brief  Get OPAMP offset to calibrate the selected transistors
732
  *         differential pair NMOS or PMOS.
733
  * @note   Preliminarily, OPAMP must be set in mode calibration
734
  *         using function @ref LL_OPAMP_SetMode().
735
  * @rmtoll CSR      OPA1CAL_H      LL_OPAMP_SetCalibrationSelection\n
736
  *         CSR      OPA1CAL_L      LL_OPAMP_SetCalibrationSelection
737
  * @param  OPAMPx OPAMP instance
738
  * @retval Returned value can be one of the following values:
739
  *         @arg @ref LL_OPAMP_TRIMMING_NMOS
740
  *         @arg @ref LL_OPAMP_TRIMMING_PMOS
741
  *         @arg @ref LL_OPAMP_TRIMMING_NONE
742
  */
743
__STATIC_INLINE uint32_t LL_OPAMP_GetCalibrationSelection(OPAMP_TypeDef *OPAMPx)
744
{
745
  uint32_t CalibrationSelection = (uint32_t)(READ_BIT(OPAMP->CSR,
746
                                                      (OPAMP_CSR_OPA1CAL_H | OPAMP_CSR_OPA1CAL_L) << __OPAMP_INSTANCE_BITOFFSET(OPAMPx)
747
                                                     )
748
                                             >> __OPAMP_INSTANCE_BITOFFSET(OPAMPx)
749
                                            );
750
 
751
  return ((CalibrationSelection << OPAMP_TRIMMING_SELECT_SW_OFFSET) |
752
          ((OPAMP_OTR_AO1_OPT_OFFSET_TRIM_LOW) << (OPAMP_OTR_AO1_OPT_OFFSET_TRIM_HIGH_Pos * ((CalibrationSelection & OPAMP_CSR_OPA1CAL_H) != 0U))));
753
}
754
 
755
/**
756
  * @brief  Get OPAMP calibration result of toggling output.
757
  * @note   This functions returns:
758
  *         0 if OPAMP calibration output is reset
759
  *         1 if OPAMP calibration output is set
760
  * @rmtoll CSR      OPAxCALOUT     LL_OPAMP_IsCalibrationOutputSet
761
  * @param  OPAMPx OPAMP instance
762
  * @retval State of bit (1 or 0).
763
  */
764
__STATIC_INLINE uint32_t LL_OPAMP_IsCalibrationOutputSet(OPAMP_TypeDef *OPAMPx)
765
{
766
  return (READ_BIT(OPAMP->CSR, (OPAMP_CSR_OPA1CALOUT << __OPAMP_INSTANCE_DECIMAL(OPAMPx)))
767
          == (OPAMP_CSR_OPA1CALOUT << __OPAMP_INSTANCE_DECIMAL(OPAMPx)));
768
}
769
 
770
/**
771
  * @brief  Set OPAMP trimming factor for the selected transistors
772
  *         differential pair NMOS or PMOS, corresponding to the selected
773
  *         power mode.
774
  * @note   On STM32L1 serie, OPAMP trimming mode must be re-configured
775
  *         at each update of trimming values in power mode normal.
776
  *         Refer to function @ref LL_OPAMP_SetCommonTrimmingMode().
777
  * @rmtoll OTR      AOx_OPT_OFFSET_TRIM_HIGH    LL_OPAMP_SetTrimmingValue\n
778
  *         OTR      AOx_OPT_OFFSET_TRIM_LOW     LL_OPAMP_SetTrimmingValue\n
779
  *         LPOTR    AOx_OPT_OFFSET_TRIM_LP_HIGH LL_OPAMP_SetTrimmingValue\n
780
  *         LPOTR    AOx_OPT_OFFSET_TRIM_LP_LOW  LL_OPAMP_SetTrimmingValue
781
  * @param  OPAMPx OPAMP instance
782
  * @param  PowerMode This parameter can be one of the following values:
783
  *         @arg @ref LL_OPAMP_POWERMODE_NORMAL
784
  *         @arg @ref LL_OPAMP_POWERMODE_LOWPOWER
785
  * @param  TransistorsDiffPair This parameter can be one of the following values:
786
  *         @arg @ref LL_OPAMP_TRIMMING_NMOS
787
  *         @arg @ref LL_OPAMP_TRIMMING_PMOS
788
  * @param  TrimmingValue 0x00...0x1F
789
  * @retval None
790
  */
791
__STATIC_INLINE void LL_OPAMP_SetTrimmingValue(OPAMP_TypeDef* OPAMPx, uint32_t PowerMode, uint32_t TransistorsDiffPair, uint32_t TrimmingValue)
792
{
793
  uint32_t *preg = __OPAMP_PTR_REG_OFFSET(OPAMP->OTR, (PowerMode & OPAMP_POWERMODE_OTR_REGOFFSET_MASK));
794
 
795
  /* Set bits with position in register depending on parameter                */
796
  /* "TransistorsDiffPair".                                                   */
797
  /* Parameter used with mask "OPAMP_TRIMMING_VALUE_MASK" because             */
798
  /* containing other bits reserved for other purpose.                        */
799
  MODIFY_REG(*preg,
800
             (TransistorsDiffPair & OPAMP_TRIMMING_VALUE_MASK) << (OPAMP_OTR_AO2_OPT_OFFSET_TRIM_LOW_Pos * __OPAMP_INSTANCE_DECIMAL(OPAMPx)),
801
             TrimmingValue << (POSITION_VAL(TransistorsDiffPair & OPAMP_TRIMMING_VALUE_MASK) + (OPAMP_OTR_AO2_OPT_OFFSET_TRIM_LOW_Pos * __OPAMP_INSTANCE_DECIMAL(OPAMPx))));
802
}
803
 
804
/**
805
  * @brief  Get OPAMP trimming factor for the selected transistors
806
  *         differential pair NMOS or PMOS, corresponding to the selected
807
  *         power mode.
808
  * @rmtoll OTR      AOx_OPT_OFFSET_TRIM_HIGH    LL_OPAMP_GetTrimmingValue\n
809
  *         OTR      AOx_OPT_OFFSET_TRIM_LOW     LL_OPAMP_GetTrimmingValue\n
810
  *         LPOTR    AOx_OPT_OFFSET_TRIM_LP_HIGH LL_OPAMP_GetTrimmingValue\n
811
  *         LPOTR    AOx_OPT_OFFSET_TRIM_LP_LOW  LL_OPAMP_GetTrimmingValue
812
  * @param  OPAMPx OPAMP instance
813
  * @param  PowerMode This parameter can be one of the following values:
814
  *         @arg @ref LL_OPAMP_POWERMODE_NORMAL
815
  *         @arg @ref LL_OPAMP_POWERMODE_LOWPOWER
816
  * @param  TransistorsDiffPair This parameter can be one of the following values:
817
  *         @arg @ref LL_OPAMP_TRIMMING_NMOS
818
  *         @arg @ref LL_OPAMP_TRIMMING_PMOS
819
  * @retval 0x0...0x1F
820
  */
821
__STATIC_INLINE uint32_t LL_OPAMP_GetTrimmingValue(OPAMP_TypeDef* OPAMPx, uint32_t PowerMode, uint32_t TransistorsDiffPair)
822
{
823
  uint32_t *preg = __OPAMP_PTR_REG_OFFSET(OPAMP->OTR, (PowerMode & OPAMP_POWERMODE_OTR_REGOFFSET_MASK));
824
 
825
  /* Retrieve bits with position in register depending on parameter           */
826
  /* "TransistorsDiffPair".                                                   */
827
  /* Parameter used with mask "OPAMP_TRIMMING_VALUE_MASK" because             */
828
  /* containing other bits reserved for other purpose.                        */
829
  return (uint32_t)(READ_BIT(*preg, (TransistorsDiffPair & OPAMP_TRIMMING_VALUE_MASK) << (OPAMP_OTR_AO2_OPT_OFFSET_TRIM_LOW_Pos * __OPAMP_INSTANCE_DECIMAL(OPAMPx)))
830
                    >> (POSITION_VAL(TransistorsDiffPair & OPAMP_TRIMMING_VALUE_MASK) + (OPAMP_OTR_AO2_OPT_OFFSET_TRIM_LOW_Pos * __OPAMP_INSTANCE_DECIMAL(OPAMPx)))
831
                   );
832
}
833
 
834
/**
835
  * @}
836
  */
837
 
838
/** @defgroup OPAMP_LL_EF_OPERATION Operation on OPAMP instance
839
  * @{
840
  */
841
/**
842
  * @brief  Enable OPAMP instance.
843
  * @note   After enable from off state, OPAMP requires a delay
844
  *         to fullfill wake up time specification.
845
  *         Refer to device datasheet, parameter "tWAKEUP".
846
  * @rmtoll CSR      OPAxPD         LL_OPAMP_Enable
847
  * @param  OPAMPx OPAMP instance
848
  * @retval None
849
  */
850
__STATIC_INLINE void LL_OPAMP_Enable(OPAMP_TypeDef *OPAMPx)
851
{
852
  CLEAR_BIT(OPAMP->CSR, OPAMP_CSR_OPA1PD << __OPAMP_INSTANCE_BITOFFSET(OPAMPx));
853
}
854
 
855
/**
856
  * @brief  Disable OPAMP instance.
857
  * @rmtoll CSR      OPAxPD         LL_OPAMP_Disable
858
  * @param  OPAMPx OPAMP instance
859
  * @retval None
860
  */
861
__STATIC_INLINE void LL_OPAMP_Disable(OPAMP_TypeDef *OPAMPx)
862
{
863
  SET_BIT(OPAMP->CSR, OPAMP_CSR_OPA1PD << __OPAMP_INSTANCE_BITOFFSET(OPAMPx));
864
}
865
 
866
/**
867
  * @brief  Get OPAMP instance enable state
868
  *         (0: OPAMP is disabled, 1: OPAMP is enabled)
869
  * @rmtoll CSR      OPAxPD         LL_OPAMP_IsEnabled
870
  * @param  OPAMPx OPAMP instance
871
  * @retval State of bit (1 or 0).
872
  */
873
__STATIC_INLINE uint32_t LL_OPAMP_IsEnabled(OPAMP_TypeDef *OPAMPx)
874
{
875
  return (READ_BIT(OPAMP->CSR, OPAMP_CSR_OPA1PD << __OPAMP_INSTANCE_BITOFFSET(OPAMPx))
876
          != (OPAMP_CSR_OPA1PD << __OPAMP_INSTANCE_BITOFFSET(OPAMPx)));
877
}
878
 
879
/**
880
  * @}
881
  */
882
 
883
#if defined(USE_FULL_LL_DRIVER)
884
/** @defgroup OPAMP_LL_EF_Init Initialization and de-initialization functions
885
  * @{
886
  */
887
 
888
ErrorStatus LL_OPAMP_DeInit(OPAMP_TypeDef *OPAMPx);
889
ErrorStatus LL_OPAMP_Init(OPAMP_TypeDef *OPAMPx, LL_OPAMP_InitTypeDef *OPAMP_InitStruct);
890
void        LL_OPAMP_StructInit(LL_OPAMP_InitTypeDef *OPAMP_InitStruct);
891
 
892
/**
893
  * @}
894
  */
895
#endif /* USE_FULL_LL_DRIVER */
896
 
897
/**
898
  * @}
899
  */
900
 
901
/**
902
  * @}
903
  */
904
 
905
#endif /* OPAMP1 || OPAMP2 || OPAMP3 */
906
 
907
/**
908
  * @}
909
  */
910
 
911
#ifdef __cplusplus
912
}
913
#endif
914
 
915
#endif /* __STM32L1xx_LL_OPAMP_H */
916
 
917
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/