1 /**
2   ******************************************************************************
3   * @file    stm32f0xx_hal_comp.h
4   * @author  MCD Application Team
5   * @brief   Header file of COMP HAL module.
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 
19 /* Define to prevent recursive inclusion -------------------------------------*/
20 #ifndef STM32F0xx_HAL_COMP_H
21 #define STM32F0xx_HAL_COMP_H
22 
23 #ifdef __cplusplus
24  extern "C" {
25 #endif
26 
27 #if defined (COMP1) || defined (COMP2)
28 
29 /* Includes ------------------------------------------------------------------*/
30 #include "stm32f0xx_hal_def.h"
31 
32 /** @addtogroup STM32F0xx_HAL_Driver
33   * @{
34   */
35 
36 /** @addtogroup COMP COMP
37   * @{
38   */
39 
40 /* Exported types ------------------------------------------------------------*/
41 /** @defgroup COMP_Exported_Types COMP Exported Types
42   * @{
43   */
44 
45 /**
46   * @brief  COMP Init structure definition
47   */
48 typedef struct
49 {
50 
51   uint32_t InvertingInput;     /*!< Selects the inverting input of the comparator.
52                                     This parameter can be a value of @ref COMP_InvertingInput */
53 
54   uint32_t NonInvertingInput;  /*!< Selects the non inverting input of the comparator.
55                                     This parameter can be a value of @ref COMP_NonInvertingInput */
56 
57   uint32_t Output;             /*!< Selects the output redirection of the comparator.
58                                     This parameter can be a value of @ref COMP_Output */
59 
60   uint32_t OutputPol;          /*!< Selects the output polarity of the comparator.
61                                     This parameter can be a value of @ref COMP_OutputPolarity */
62 
63   uint32_t Hysteresis;         /*!< Selects the hysteresis voltage of the comparator.
64                                     This parameter can be a value of @ref COMP_Hysteresis */
65 
66   uint32_t Mode;               /*!< Selects the operating consumption mode of the comparator
67                                     to adjust the speed/consumption.
68                                     This parameter can be a value of @ref COMP_Mode */
69 
70   uint32_t WindowMode;         /*!< Selects the window mode of the comparator 1 & 2.
71                                     This parameter can be a value of @ref COMP_WindowMode */
72 
73   uint32_t TriggerMode;        /*!< Selects the trigger mode of the comparator (interrupt mode).
74                                     This parameter can be a value of @ref COMP_TriggerMode */
75 
76 }COMP_InitTypeDef;
77 
78 /**
79   * @brief  COMP Handle Structure definition
80   */
81 typedef struct __COMP_HandleTypeDef
82 {
83   COMP_TypeDef                *Instance;                          /*!< Register base address    */
84   COMP_InitTypeDef            Init;                               /*!< COMP required parameters */
85   HAL_LockTypeDef             Lock;                               /*!< Locking object           */
86   __IO uint32_t               State;                              /*!< COMP communication state
87                                                                        This parameter can be a value of @ref COMP_State  */
88   __IO uint32_t      ErrorCode;                                   /*!< COMP Error code */
89 #if (USE_HAL_COMP_REGISTER_CALLBACKS == 1)
90   void (* TriggerCallback)(struct __COMP_HandleTypeDef *hcomp);   /*!< COMP trigger callback */
91   void (* MspInitCallback)(struct __COMP_HandleTypeDef *hcomp);   /*!< COMP Msp Init callback */
92   void (* MspDeInitCallback)(struct __COMP_HandleTypeDef *hcomp); /*!< COMP Msp DeInit callback */
93 #endif /* USE_HAL_COMP_REGISTER_CALLBACKS */
94 }COMP_HandleTypeDef;
95 
96 #if (USE_HAL_COMP_REGISTER_CALLBACKS == 1)
97 /**
98   * @brief  HAL COMP Callback ID enumeration definition
99   */
100 typedef enum
101 {
102   HAL_COMP_TRIGGER_CB_ID                = 0x00U,  /*!< COMP trigger callback ID */
103   HAL_COMP_MSPINIT_CB_ID                = 0x01U,  /*!< COMP Msp Init callback ID */
104   HAL_COMP_MSPDEINIT_CB_ID              = 0x02U   /*!< COMP Msp DeInit callback ID */
105 } HAL_COMP_CallbackIDTypeDef;
106 
107 /**
108   * @brief  HAL COMP Callback pointer definition
109   */
110 typedef  void (*pCOMP_CallbackTypeDef)(COMP_HandleTypeDef *hcomp); /*!< pointer to a COMP callback function */
111 
112 #endif /* USE_HAL_COMP_REGISTER_CALLBACKS */
113 
114 /**
115   * @}
116   */
117 
118 /* Exported constants --------------------------------------------------------*/
119 /** @defgroup COMP_Exported_Constants COMP Exported Constants
120   * @{
121   */
122 
123 /** @defgroup COMP_Error_Code COMP Error Code
124   * @{
125   */
126 #define HAL_COMP_ERROR_NONE             (0x00U)   /*!< No error */
127 #if (USE_HAL_COMP_REGISTER_CALLBACKS == 1)
128 #define HAL_COMP_ERROR_INVALID_CALLBACK (0x01U)   /*!< Invalid Callback error */
129 #endif /* USE_HAL_COMP_REGISTER_CALLBACKS */
130 /**
131   * @}
132   */
133 
134 /** @defgroup COMP_State COMP State
135   * @{
136   */
137 #define HAL_COMP_STATE_RESET             (0x00000000U)    /*!< COMP not yet initialized or disabled             */
138 #define HAL_COMP_STATE_READY             (0x00000001U)    /*!< COMP initialized and ready for use               */
139 #define HAL_COMP_STATE_READY_LOCKED      (0x00000011U)    /*!< COMP initialized but the configuration is locked */
140 #define HAL_COMP_STATE_BUSY              (0x00000002U)    /*!< COMP is running                                  */
141 #define HAL_COMP_STATE_BUSY_LOCKED       (0x00000012U)    /*!< COMP is running and the configuration is locked  */
142 /**
143   * @}
144   */
145 
146 /** @defgroup COMP_OutputPolarity COMP OutputPolarity
147   * @{
148   */
149 #define COMP_OUTPUTPOL_NONINVERTED             (0x00000000U)  /*!< COMP output on GPIO isn't inverted */
150 #define COMP_OUTPUTPOL_INVERTED                COMP_CSR_COMP1POL       /*!< COMP output on GPIO is inverted  */
151 /**
152   * @}
153   */
154 
155 /** @defgroup COMP_Hysteresis COMP Hysteresis
156   * @{
157   */
158 #define COMP_HYSTERESIS_NONE                   (0x00000000U)  /*!< No hysteresis */
159 #define COMP_HYSTERESIS_LOW                    COMP_CSR_COMP1HYST_0    /*!< Hysteresis level low */
160 #define COMP_HYSTERESIS_MEDIUM                 COMP_CSR_COMP1HYST_1    /*!< Hysteresis level medium */
161 #define COMP_HYSTERESIS_HIGH                   COMP_CSR_COMP1HYST      /*!< Hysteresis level high */
162 /**
163   * @}
164   */
165 
166 /** @defgroup COMP_Mode COMP Mode
167   * @{
168   */
169 /* Please refer to the electrical characteristics in the device datasheet for
170    the power consumption values */
171 #define COMP_MODE_HIGHSPEED                    (0x00000000U) /*!< High Speed */
172 #define COMP_MODE_MEDIUMSPEED                  COMP_CSR_COMP1MODE_0   /*!< Medium Speed */
173 #define COMP_MODE_LOWPOWER                     COMP_CSR_COMP1MODE_1   /*!< Low power mode */
174 #define COMP_MODE_ULTRALOWPOWER                COMP_CSR_COMP1MODE     /*!< Ultra-low power mode */
175 /**
176   * @}
177   */
178 
179 /** @defgroup COMP_InvertingInput COMP InvertingInput
180   * @{
181   */
182 
183 #define COMP_INVERTINGINPUT_1_4VREFINT         (0x00000000U) /*!< 1/4 VREFINT connected to comparator inverting input */
184 #define COMP_INVERTINGINPUT_1_2VREFINT         COMP_CSR_COMP1INSEL_0                         /*!< 1/2 VREFINT connected to comparator inverting input    */
185 #define COMP_INVERTINGINPUT_3_4VREFINT         COMP_CSR_COMP1INSEL_1                         /*!< 3/4 VREFINT connected to comparator inverting input    */
186 #define COMP_INVERTINGINPUT_VREFINT            (COMP_CSR_COMP1INSEL_1|COMP_CSR_COMP1INSEL_0) /*!< VREFINT connected to comparator inverting input        */
187 #define COMP_INVERTINGINPUT_DAC1               COMP_CSR_COMP1INSEL_2                         /*!< DAC_OUT1 (PA4) connected to comparator inverting input */
188 #define COMP_INVERTINGINPUT_DAC1SWITCHCLOSED   (COMP_CSR_COMP1INSEL_2|COMP_CSR_COMP1SW1)     /*!< DAC_OUT1 (PA4) connected to comparator inverting input
189                                                                                                   and close switch (PA0 for COMP1 only) */
190 #define COMP_INVERTINGINPUT_DAC2               (COMP_CSR_COMP1INSEL_2|COMP_CSR_COMP1INSEL_0) /*!< DAC_OUT2 (PA5) connected to comparator inverting input */
191 #define COMP_INVERTINGINPUT_IO1                (COMP_CSR_COMP1INSEL_2|COMP_CSR_COMP1INSEL_1) /*!< IO (PA0 for COMP1 and PA2 for COMP2) connected to comparator inverting input */
192 /**
193   * @}
194   */
195 
196 /** @defgroup COMP_NonInvertingInput COMP NonInvertingInput
197   * @{
198   */
199 #define COMP_NONINVERTINGINPUT_IO1               (0x00000000U) /*!< I/O1 (PA1 for COMP1, PA3 for COMP2)
200                                                                              connected to comparator non inverting input */
201 #define COMP_NONINVERTINGINPUT_DAC1SWITCHCLOSED  COMP_CSR_COMP1SW1  /*!< DAC output connected to comparator COMP1 non inverting input */
202 /**
203   * @}
204   */
205 
206 /** @defgroup COMP_Output COMP Output
207   * @{
208   */
209 
210 /* Output Redirection common for COMP1 and COMP2 */
211 #define COMP_OUTPUT_NONE                       (0x00000000U)                          /*!< COMP output isn't connected to other peripherals */
212 #define COMP_OUTPUT_TIM1BKIN                   COMP_CSR_COMP1OUTSEL_0                          /*!< COMP output connected to TIM1 Break Input (BKIN) */
213 #define COMP_OUTPUT_TIM1IC1                    COMP_CSR_COMP1OUTSEL_1                          /*!< COMP output connected to TIM1 Input Capture 1 */
214 #define COMP_OUTPUT_TIM1OCREFCLR               (COMP_CSR_COMP1OUTSEL_1|COMP_CSR_COMP1OUTSEL_0) /*!< COMP output connected to TIM1 OCREF Clear */
215 #define COMP_OUTPUT_TIM2IC4                    COMP_CSR_COMP1OUTSEL_2                          /*!< COMP output connected to TIM2 Input Capture 4 */
216 #define COMP_OUTPUT_TIM2OCREFCLR               (COMP_CSR_COMP1OUTSEL_2|COMP_CSR_COMP1OUTSEL_0) /*!< COMP output connected to TIM2 OCREF Clear */
217 #define COMP_OUTPUT_TIM3IC1                    (COMP_CSR_COMP1OUTSEL_2|COMP_CSR_COMP1OUTSEL_1) /*!< COMP output connected to TIM3 Input Capture 1 */
218 #define COMP_OUTPUT_TIM3OCREFCLR               COMP_CSR_COMP1OUTSEL                            /*!< COMP output connected to TIM3 OCREF Clear */
219 /**
220   * @}
221   */
222 
223 /** @defgroup COMP_OutputLevel COMP OutputLevel
224   * @{
225   */
226 /* When output polarity is not inverted, comparator output is low when
227    the non-inverting input is at a lower voltage than the inverting input*/
228 #define COMP_OUTPUTLEVEL_LOW                   (0x00000000U)
229 /* When output polarity is not inverted, comparator output is high when
230    the non-inverting input is at a higher voltage than the inverting input */
231 #define COMP_OUTPUTLEVEL_HIGH                  COMP_CSR_COMP1OUT
232 /**
233   * @}
234   */
235 
236 /** @defgroup COMP_TriggerMode COMP TriggerMode
237   * @{
238   */
239 #define COMP_TRIGGERMODE_NONE                  (0x00000000U)  /*!< No External Interrupt trigger detection */
240 #define COMP_TRIGGERMODE_IT_RISING             (0x00000001U)  /*!< External Interrupt Mode with Rising edge trigger detection */
241 #define COMP_TRIGGERMODE_IT_FALLING            (0x00000002U)  /*!< External Interrupt Mode with Falling edge trigger detection */
242 #define COMP_TRIGGERMODE_IT_RISING_FALLING     (0x00000003U)  /*!< External Interrupt Mode with Rising/Falling edge trigger detection */
243 #define COMP_TRIGGERMODE_EVENT_RISING          (0x00000010U)  /*!< Event Mode with Rising edge trigger detection */
244 #define COMP_TRIGGERMODE_EVENT_FALLING         (0x00000020U)  /*!< Event Mode with Falling edge trigger detection */
245 #define COMP_TRIGGERMODE_EVENT_RISING_FALLING  (0x00000030U)  /*!< Event Mode with Rising/Falling edge trigger detection */
246 /**
247   * @}
248   */
249 
250 /** @defgroup COMP_WindowMode COMP WindowMode
251   * @{
252   */
253 #define COMP_WINDOWMODE_DISABLE                (0x00000000U)  /*!< Window mode disabled */
254 #define COMP_WINDOWMODE_ENABLE                 COMP_CSR_WNDWEN         /*!< Window mode enabled: non inverting input of comparator 2
255                                                                             is connected to the non inverting input of comparator 1 (PA1) */
256 /**
257   * @}
258   */
259 
260 /** @defgroup COMP_Flag COMP Flag
261   * @{
262   */
263 #define COMP_FLAG_LOCK                         ((uint32_t)COMP_CSR_COMPxLOCK)  /*!< Lock flag */
264 
265 /**
266   * @}
267   */
268 
269 /**
270   * @}
271   */
272 
273 /* Exported macros -----------------------------------------------------------*/
274 /** @defgroup COMP_Exported_Macros COMP Exported Macros
275   * @{
276   */
277 
278 /** @brief  Reset COMP handle state
279   * @param  __HANDLE__ COMP handle.
280   * @retval None
281   */
282 #if (USE_HAL_COMP_REGISTER_CALLBACKS == 1)
283 #define __HAL_COMP_RESET_HANDLE_STATE(__HANDLE__) do{                                                   \
284                                                      (__HANDLE__)->State = HAL_COMP_STATE_RESET;      \
285                                                      (__HANDLE__)->MspInitCallback = NULL;            \
286                                                      (__HANDLE__)->MspDeInitCallback = NULL;          \
287                                                     } while(0)
288 #else
289 #define __HAL_COMP_RESET_HANDLE_STATE(__HANDLE__) ((__HANDLE__)->State = HAL_COMP_STATE_RESET)
290 #endif
291 
292 /**
293   * @brief Clear COMP error code (set it to no error code "HAL_COMP_ERROR_NONE").
294   * @param __HANDLE__ COMP handle
295   * @retval None
296   */
297 #define COMP_CLEAR_ERRORCODE(__HANDLE__) ((__HANDLE__)->ErrorCode = HAL_COMP_ERROR_NONE)
298 
299 /**
300   * @brief  Enable the specified comparator.
301   * @param  __HANDLE__ COMP handle.
302   * @retval None
303   */
304 #define __HAL_COMP_ENABLE(__HANDLE__)                 (((__HANDLE__)->Instance == COMP1) ?    \
305                                                        SET_BIT(COMP->CSR, COMP_CSR_COMP1EN) : \
306                                                        SET_BIT(COMP->CSR, COMP_CSR_COMP2EN))
307 
308 /**
309   * @brief  Disable the specified comparator.
310   * @param  __HANDLE__ COMP handle.
311   * @retval None
312   */
313 #define __HAL_COMP_DISABLE(__HANDLE__)                (((__HANDLE__)->Instance == COMP1) ?    \
314                                                        CLEAR_BIT(COMP->CSR, COMP_CSR_COMP1EN) : \
315                                                        CLEAR_BIT(COMP->CSR, COMP_CSR_COMP2EN))
316 
317 /**
318   * @brief  Lock the specified comparator configuration.
319   * @param  __HANDLE__ COMP handle.
320   * @retval None
321   */
322 #define __HAL_COMP_LOCK(__HANDLE__)                   (((__HANDLE__)->Instance == COMP1) ?    \
323                                                        SET_BIT(COMP->CSR, COMP_CSR_COMP1LOCK) : \
324                                                        SET_BIT(COMP->CSR, COMP_CSR_COMP2LOCK))
325 
326 /**
327   * @brief  Enable the COMP1 EXTI line rising edge trigger.
328   * @retval None
329   */
330 #define __HAL_COMP_COMP1_EXTI_ENABLE_RISING_EDGE()    SET_BIT(EXTI->RTSR, COMP_EXTI_LINE_COMP1)
331 
332 /**
333   * @brief  Disable the COMP1 EXTI line rising edge trigger.
334   * @retval None
335   */
336 #define __HAL_COMP_COMP1_EXTI_DISABLE_RISING_EDGE()   CLEAR_BIT(EXTI->RTSR, COMP_EXTI_LINE_COMP1)
337 
338 /**
339   * @brief  Enable the COMP1 EXTI line falling edge trigger.
340   * @retval None
341   */
342 #define __HAL_COMP_COMP1_EXTI_ENABLE_FALLING_EDGE()   SET_BIT(EXTI->FTSR, COMP_EXTI_LINE_COMP1)
343 
344 /**
345   * @brief  Disable the COMP1 EXTI line falling edge trigger.
346   * @retval None
347   */
348 #define __HAL_COMP_COMP1_EXTI_DISABLE_FALLING_EDGE()  CLEAR_BIT(EXTI->FTSR, COMP_EXTI_LINE_COMP1)
349 
350 /**
351   * @brief  Enable the COMP1 EXTI line rising & falling edge trigger.
352   * @retval None
353   */
354 #define __HAL_COMP_COMP1_EXTI_ENABLE_RISING_FALLING_EDGE()   do { \
355                                                                __HAL_COMP_COMP1_EXTI_ENABLE_RISING_EDGE(); \
356                                                                __HAL_COMP_COMP1_EXTI_ENABLE_FALLING_EDGE(); \
357                                                              } while(0)
358 
359 /**
360   * @brief  Disable the COMP1 EXTI line rising & falling edge trigger.
361   * @retval None
362   */
363 #define __HAL_COMP_COMP1_EXTI_DISABLE_RISING_FALLING_EDGE()  do { \
364                                                                __HAL_COMP_COMP1_EXTI_DISABLE_RISING_EDGE(); \
365                                                                __HAL_COMP_COMP1_EXTI_DISABLE_FALLING_EDGE(); \
366                                                              } while(0)
367 
368 /**
369   * @brief  Enable the COMP1 EXTI line in interrupt mode.
370   * @retval None
371   */
372 #define __HAL_COMP_COMP1_EXTI_ENABLE_IT()             SET_BIT(EXTI->IMR, COMP_EXTI_LINE_COMP1)
373 
374 /**
375   * @brief  Disable the COMP1 EXTI line in interrupt mode.
376   * @retval None
377   */
378 #define __HAL_COMP_COMP1_EXTI_DISABLE_IT()            CLEAR_BIT(EXTI->IMR, COMP_EXTI_LINE_COMP1)
379 
380 /**
381   * @brief  Generate a software interrupt on the COMP1 EXTI line.
382   * @retval None
383   */
384 #define __HAL_COMP_COMP1_EXTI_GENERATE_SWIT()         SET_BIT(EXTI->SWIER, COMP_EXTI_LINE_COMP1)
385 
386 /**
387   * @brief  Enable the COMP1 EXTI Line in event mode.
388   * @retval None
389   */
390 #define __HAL_COMP_COMP1_EXTI_ENABLE_EVENT()           SET_BIT(EXTI->EMR, COMP_EXTI_LINE_COMP1)
391 
392 /**
393   * @brief  Disable the COMP1 EXTI Line in event mode.
394   * @retval None
395   */
396 #define __HAL_COMP_COMP1_EXTI_DISABLE_EVENT()          CLEAR_BIT(EXTI->EMR, COMP_EXTI_LINE_COMP1)
397 
398 /**
399   * @brief  Check whether the COMP1 EXTI line flag is set or not.
400   * @retval RESET or SET
401   */
402 #define __HAL_COMP_COMP1_EXTI_GET_FLAG()              READ_BIT(EXTI->PR, COMP_EXTI_LINE_COMP1)
403 
404 /**
405   * @brief  Clear the COMP1 EXTI flag.
406   * @retval None
407   */
408 #define __HAL_COMP_COMP1_EXTI_CLEAR_FLAG()            WRITE_REG(EXTI->PR, COMP_EXTI_LINE_COMP1)
409 
410 /**
411   * @brief  Enable the COMP2 EXTI line rising edge trigger.
412   * @retval None
413   */
414 #define __HAL_COMP_COMP2_EXTI_ENABLE_RISING_EDGE()    SET_BIT(EXTI->RTSR, COMP_EXTI_LINE_COMP2)
415 
416 /**
417   * @brief  Disable the COMP2 EXTI line rising edge trigger.
418   * @retval None
419   */
420 #define __HAL_COMP_COMP2_EXTI_DISABLE_RISING_EDGE()   CLEAR_BIT(EXTI->RTSR, COMP_EXTI_LINE_COMP2)
421 
422 /**
423   * @brief  Enable the COMP2 EXTI line falling edge trigger.
424   * @retval None
425   */
426 #define __HAL_COMP_COMP2_EXTI_ENABLE_FALLING_EDGE()   SET_BIT(EXTI->FTSR, COMP_EXTI_LINE_COMP2)
427 
428 /**
429   * @brief  Disable the COMP2 EXTI line falling edge trigger.
430   * @retval None
431   */
432 #define __HAL_COMP_COMP2_EXTI_DISABLE_FALLING_EDGE()  CLEAR_BIT(EXTI->FTSR, COMP_EXTI_LINE_COMP2)
433 
434 /**
435   * @brief  Enable the COMP2 EXTI line rising & falling edge trigger.
436   * @retval None
437   */
438 #define __HAL_COMP_COMP2_EXTI_ENABLE_RISING_FALLING_EDGE()   do { \
439                                                                __HAL_COMP_COMP2_EXTI_ENABLE_RISING_EDGE(); \
440                                                                __HAL_COMP_COMP2_EXTI_ENABLE_FALLING_EDGE(); \
441                                                              } while(0)
442 
443 /**
444   * @brief  Disable the COMP2 EXTI line rising & falling edge trigger.
445   * @retval None
446   */
447 #define __HAL_COMP_COMP2_EXTI_DISABLE_RISING_FALLING_EDGE()   do { \
448                                                                __HAL_COMP_COMP2_EXTI_DISABLE_RISING_EDGE(); \
449                                                                __HAL_COMP_COMP2_EXTI_DISABLE_FALLING_EDGE(); \
450                                                              } while(0)
451 
452 /**
453   * @brief  Enable the COMP2 EXTI line in interrupt mode.
454   * @retval None
455   */
456 #define __HAL_COMP_COMP2_EXTI_ENABLE_IT()             SET_BIT(EXTI->IMR, COMP_EXTI_LINE_COMP2)
457 
458 /**
459   * @brief  Disable the COMP2 EXTI line in interrupt mode.
460   * @retval None
461   */
462 #define __HAL_COMP_COMP2_EXTI_DISABLE_IT()            CLEAR_BIT(EXTI->IMR, COMP_EXTI_LINE_COMP2)
463 
464 /**
465   * @brief  Generate a software interrupt on the COMP2 EXTI line.
466   * @retval None
467   */
468 #define __HAL_COMP_COMP2_EXTI_GENERATE_SWIT()         SET_BIT(EXTI->SWIER, COMP_EXTI_LINE_COMP2)
469 
470 /**
471   * @brief  Enable the COMP2 EXTI Line in event mode.
472   * @retval None
473   */
474 #define __HAL_COMP_COMP2_EXTI_ENABLE_EVENT()           SET_BIT(EXTI->EMR, COMP_EXTI_LINE_COMP2)
475 
476 /**
477   * @brief  Disable the COMP2 EXTI Line in event mode.
478   * @retval None
479   */
480 #define __HAL_COMP_COMP2_EXTI_DISABLE_EVENT()          CLEAR_BIT(EXTI->EMR, COMP_EXTI_LINE_COMP2)
481 
482 /**
483   * @brief  Check whether the COMP2 EXTI line flag is set or not.
484   * @retval RESET or SET
485   */
486 #define __HAL_COMP_COMP2_EXTI_GET_FLAG()              READ_BIT(EXTI->PR, COMP_EXTI_LINE_COMP2)
487 
488 /**
489   * @brief  Clear the COMP2 EXTI flag.
490   * @retval None
491   */
492 #define __HAL_COMP_COMP2_EXTI_CLEAR_FLAG()            WRITE_REG(EXTI->PR, COMP_EXTI_LINE_COMP2)
493 
494 /** @brief  Check whether the specified COMP flag is set or not.
495   * @param  __HANDLE__ specifies the COMP Handle.
496   * @param  __FLAG__ specifies the flag to check.
497   *        This parameter can be one of the following values:
498   *            @arg COMP_FLAG_LOCK:  lock flag
499   * @retval The new state of __FLAG__ (TRUE or FALSE).
500   */
501 #define __HAL_COMP_GET_FLAG(__HANDLE__, __FLAG__)     (((__HANDLE__)->Instance->CSR & (__FLAG__)) == (__FLAG__))
502 
503 /**
504   * @}
505   */
506 
507 /* Exported functions --------------------------------------------------------*/
508 /** @addtogroup COMP_Exported_Functions COMP Exported Functions
509   * @{
510   */
511 /** @addtogroup COMP_Exported_Functions_Group1 Initialization/de-initialization functions
512  *  @brief    Initialization and Configuration functions
513  * @{
514  */
515 /* Initialization and de-initialization functions  ****************************/
516 HAL_StatusTypeDef     HAL_COMP_Init(COMP_HandleTypeDef *hcomp);
517 HAL_StatusTypeDef     HAL_COMP_DeInit (COMP_HandleTypeDef *hcomp);
518 void                  HAL_COMP_MspInit(COMP_HandleTypeDef *hcomp);
519 void                  HAL_COMP_MspDeInit(COMP_HandleTypeDef *hcomp);
520 
521 #if (USE_HAL_COMP_REGISTER_CALLBACKS == 1)
522 /* Callbacks Register/UnRegister functions  ***********************************/
523 HAL_StatusTypeDef HAL_COMP_RegisterCallback(COMP_HandleTypeDef *hcomp, HAL_COMP_CallbackIDTypeDef CallbackID, pCOMP_CallbackTypeDef pCallback);
524 HAL_StatusTypeDef HAL_COMP_UnRegisterCallback(COMP_HandleTypeDef *hcomp, HAL_COMP_CallbackIDTypeDef CallbackID);
525 #endif /* USE_HAL_COMP_REGISTER_CALLBACKS */
526 
527 /**
528   * @}
529   */
530 
531 /** @addtogroup COMP_Exported_Functions_Group2 I/O operation functions
532  *  @brief   Data transfers functions
533  * @{
534  */
535 /* IO operation functions *****************************************************/
536 HAL_StatusTypeDef     HAL_COMP_Start(COMP_HandleTypeDef *hcomp);
537 HAL_StatusTypeDef     HAL_COMP_Stop(COMP_HandleTypeDef *hcomp);
538 HAL_StatusTypeDef     HAL_COMP_Start_IT(COMP_HandleTypeDef *hcomp);
539 HAL_StatusTypeDef     HAL_COMP_Stop_IT(COMP_HandleTypeDef *hcomp);
540 void                  HAL_COMP_IRQHandler(COMP_HandleTypeDef *hcomp);
541 /**
542   * @}
543   */
544 
545 /** @addtogroup COMP_Exported_Functions_Group3 Peripheral Control functions
546  *  @brief   management functions
547  * @{
548  */
549 /* Peripheral Control functions ***********************************************/
550 HAL_StatusTypeDef     HAL_COMP_Lock(COMP_HandleTypeDef *hcomp);
551 uint32_t              HAL_COMP_GetOutputLevel(COMP_HandleTypeDef *hcomp);
552 
553 /* Callback in Interrupt mode */
554 void                  HAL_COMP_TriggerCallback(COMP_HandleTypeDef *hcomp);
555 /**
556   * @}
557   */
558 
559 /** @addtogroup COMP_Exported_Functions_Group4 Peripheral State functions
560  *  @brief   Peripheral State functions
561  * @{
562  */
563 /* Peripheral State and Error functions ***************************************/
564 uint32_t              HAL_COMP_GetState(COMP_HandleTypeDef *hcomp);
565 uint32_t              HAL_COMP_GetError(COMP_HandleTypeDef *hcomp);
566 /**
567   * @}
568   */
569 
570 /**
571   * @}
572   */
573 
574 /* Private types -------------------------------------------------------------*/
575 /* Private constants ---------------------------------------------------------*/
576 /** @defgroup COMP_Private_Constants COMP Private Constants
577   * @{
578   */
579 /** @defgroup COMP_ExtiLine COMP EXTI Lines
580   *        Elements values convention: XXXX0000
581   *           - XXXX : Interrupt mask in the EMR/IMR/RTSR/FTSR register
582   * @{
583   */
584 #define COMP_EXTI_LINE_COMP1             ((uint32_t)EXTI_IMR_MR21)  /*!< EXTI line 21 connected to COMP1 output */
585 #define COMP_EXTI_LINE_COMP2             ((uint32_t)EXTI_IMR_MR22)  /*!< EXTI line 22 connected to COMP2 output */
586 
587 /**
588   * @}
589   */
590 
591 /**
592   * @}
593   */
594 
595 /* Private macros ------------------------------------------------------------*/
596 /** @defgroup COMP_Private_Macros COMP Private Macros
597   * @{
598   */
599 /** @defgroup COMP_GET_EXTI_LINE COMP Private macros to get EXTI line associated with Comparators
600   * @{
601   */
602 /**
603   * @brief  Get the specified EXTI line for a comparator instance.
604   * @param  __INSTANCE__ specifies the COMP instance.
605   * @retval value of @ref COMP_ExtiLine
606   */
607 #define COMP_GET_EXTI_LINE(__INSTANCE__)             (((__INSTANCE__) == COMP1) ? COMP_EXTI_LINE_COMP1 : \
608                                                       COMP_EXTI_LINE_COMP2)
609 /**
610   * @}
611   */
612 
613 /** @defgroup COMP_IS_COMP_Definitions COMP Private macros to check input parameters
614   * @{
615   */
616 
617 #define IS_COMP_OUTPUTPOL(POL)  (((POL) == COMP_OUTPUTPOL_NONINVERTED)  || \
618                                  ((POL) == COMP_OUTPUTPOL_INVERTED))
619 
620 #define IS_COMP_HYSTERESIS(HYSTERESIS)    (((HYSTERESIS) == COMP_HYSTERESIS_NONE)   || \
621                                            ((HYSTERESIS) == COMP_HYSTERESIS_LOW)    || \
622                                            ((HYSTERESIS) == COMP_HYSTERESIS_MEDIUM) || \
623                                            ((HYSTERESIS) == COMP_HYSTERESIS_HIGH))
624 
625 #define IS_COMP_MODE(MODE)  (((MODE) == COMP_MODE_HIGHSPEED)     || \
626                              ((MODE) == COMP_MODE_MEDIUMSPEED)   || \
627                              ((MODE) == COMP_MODE_LOWPOWER)      || \
628                              ((MODE) == COMP_MODE_ULTRALOWPOWER))
629 
630 #define IS_COMP_INVERTINGINPUT(INPUT) (((INPUT) == COMP_INVERTINGINPUT_1_4VREFINT)       || \
631                                        ((INPUT) == COMP_INVERTINGINPUT_1_2VREFINT)       || \
632                                        ((INPUT) == COMP_INVERTINGINPUT_3_4VREFINT)       || \
633                                        ((INPUT) == COMP_INVERTINGINPUT_VREFINT)          || \
634                                        ((INPUT) == COMP_INVERTINGINPUT_DAC1)             || \
635                                        ((INPUT) == COMP_INVERTINGINPUT_DAC1SWITCHCLOSED) || \
636                                        ((INPUT) == COMP_INVERTINGINPUT_DAC2)             || \
637                                        ((INPUT) == COMP_INVERTINGINPUT_IO1))
638 
639 #define IS_COMP_NONINVERTINGINPUT(INPUT) (((INPUT) == COMP_NONINVERTINGINPUT_IO1) || \
640                                           ((INPUT) == COMP_NONINVERTINGINPUT_DAC1SWITCHCLOSED))
641 
642 #define IS_COMP_OUTPUT(OUTPUT) (((OUTPUT) == COMP_OUTPUT_NONE)                || \
643                                 ((OUTPUT) == COMP_OUTPUT_TIM1BKIN)            || \
644                                 ((OUTPUT) == COMP_OUTPUT_TIM1IC1)             || \
645                                 ((OUTPUT) == COMP_OUTPUT_TIM1OCREFCLR)        || \
646                                 ((OUTPUT) == COMP_OUTPUT_TIM2IC4)             || \
647                                 ((OUTPUT) == COMP_OUTPUT_TIM2OCREFCLR)        || \
648                                 ((OUTPUT) == COMP_OUTPUT_TIM3IC1)             || \
649                                 ((OUTPUT) == COMP_OUTPUT_TIM3OCREFCLR))
650 
651 #define IS_COMP_WINDOWMODE(WINDOWMODE) (((WINDOWMODE) == COMP_WINDOWMODE_DISABLE) || \
652                                         ((WINDOWMODE) == COMP_WINDOWMODE_ENABLE))
653 
654 #define IS_COMP_TRIGGERMODE(__MODE__)  (((__MODE__) == COMP_TRIGGERMODE_NONE)                 || \
655                                         ((__MODE__) == COMP_TRIGGERMODE_IT_RISING)            || \
656                                         ((__MODE__) == COMP_TRIGGERMODE_IT_FALLING)           || \
657                                         ((__MODE__) == COMP_TRIGGERMODE_IT_RISING_FALLING)    || \
658                                         ((__MODE__) == COMP_TRIGGERMODE_EVENT_RISING)         || \
659                                         ((__MODE__) == COMP_TRIGGERMODE_EVENT_FALLING)        || \
660                                         ((__MODE__) == COMP_TRIGGERMODE_EVENT_RISING_FALLING))
661 /**
662   * @}
663   */
664 
665 /** @defgroup COMP_Lock COMP Lock
666   * @{
667   */
668 #define COMP_LOCK_DISABLE                      (0x00000000U)
669 #define COMP_LOCK_ENABLE                       COMP_CSR_COMP1LOCK
670 
671 #define COMP_STATE_BIT_LOCK                    (0x10U)
672 /**
673   * @}
674   */
675 
676 /**
677   * @}
678   */
679 
680 /* Private functions ---------------------------------------------------------*/
681 
682 /**
683   * @}
684   */
685 
686 /**
687   * @}
688   */
689 
690 #endif /* COMP1 || COMP2 */
691 
692 #ifdef __cplusplus
693 }
694 #endif
695 
696 #endif /* STM32F0xx_HAL_COMP_H */
697 
698 
699