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stm32g0xx_ll_comp.h

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1	/**
2	******************************************************************************
3	* @file stm32g0xx_ll_comp.h
4	* @author MCD Application Team
5	* @brief Header file of COMP LL module.
6	******************************************************************************
7	* @attention
8	*
9	* <h2><center>© Copyright (c) 2018 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 STM32G0xx_LL_COMP_H
22	#define STM32G0xx_LL_COMP_H
23
24	#ifdef __cplusplus
25	extern "C" {
26	#endif
27
28	/* Includes ------------------------------------------------------------------*/
29	#include "stm32g0xx.h"
30
31	/** @addtogroup STM32G0xx_LL_Driver
32	* @{
33	*/
34
35	#if defined (COMP1) \|\| defined (COMP2)
36
37	/** @defgroup COMP_LL COMP
38	* @{
39	*/
40
41	/* Private types -------------------------------------------------------------*/
42	/* Private variables ---------------------------------------------------------*/
43	/* Private constants ---------------------------------------------------------*/
44	/** @defgroup COMP_LL_Private_Constants COMP Private Constants
45	* @{
46	*/
47
48	/* Internal mask for pair of comparators instances window mode: */
49	/* To select into literals LL_COMP_WINDOWMODE_COMPx_INPUT_PLUS_COMMON */
50	/* the relevant bits for: */
51	/* (concatenation of multiple bits used in different registers) */
52	/* - Comparator instance selected as master for window mode : register offset */
53	/* - Window mode enable or disable: bit value */
54	#define LL_COMP_WINDOWMODE_COMP_ODD_REGOFFSET_MASK (0x00000000UL) /* Register of COMP instance odd (COMP1_CSR, ...) defined as reference register */
55	#define LL_COMP_WINDOWMODE_COMP_EVEN_REGOFFSET_MASK (0x00000001UL) /* Register of COMP instance even (COMP2_CSR, ...) offset vs register of COMP instance odd */
56	#define LL_COMP_WINDOWMODE_COMPX_REGOFFSET_MASK (LL_COMP_WINDOWMODE_COMP_ODD_REGOFFSET_MASK \| LL_COMP_WINDOWMODE_COMP_EVEN_REGOFFSET_MASK)
57	#define LL_COMP_WINDOWMODE_COMPX_SETTING_MASK (COMP_CSR_WINMODE)
58	#define LL_COMP_WINDOWOUTPUT_COMPX_SETTING_MASK (COMP_CSR_WINOUT)
59	#define LL_COMP_WINDOWOUTPUT_BOTH_SETTING_MASK (COMP_CSR_WINOUT << 1UL)
60	#define LL_COMP_WINDOWOUTPUT_BOTH_POS_VS_WINDOW (1UL)
61
62	/* COMP registers bits positions */
63	#define LL_COMP_WINDOWMODE_BITOFFSET_POS (11UL) /* Value equivalent to POSITION_VAL(COMP_CSR_WINMODE) */
64	#define LL_COMP_OUTPUT_LEVEL_BITOFFSET_POS (30UL) /* Value equivalent to POSITION_VAL(COMP_CSR_VALUE) */
65
66	/**
67	* @}
68	*/
69
70	/* Private macros ------------------------------------------------------------*/
71	/** @defgroup COMP_LL_Private_Macros COMP Private Macros
72	* @{
73	*/
74
75	/**
76	* @brief Driver macro reserved for internal use: set a pointer to
77	* a register from a register basis from which an offset
78	* is applied.
79	* @param __REG__ Register basis from which the offset is applied.
80	* @param __REG_OFFFSET__ Offset to be applied (unit: number of registers).
81	* @retval Pointer to register address
82	*/
83	#define __COMP_PTR_REG_OFFSET(__REG__, __REG_OFFFSET__) \
84	((__IO uint32_t *)((uint32_t) ((uint32_t)(&(__REG__)) + ((__REG_OFFFSET__) << 2UL))))
85
86	/**
87	* @}
88	*/
89
90	/* Exported types ------------------------------------------------------------*/
91	#if defined(USE_FULL_LL_DRIVER)
92	/** @defgroup COMP_LL_ES_INIT COMP Exported Init structure
93	* @{
94	*/
95
96	/**
97	* @brief Structure definition of some features of COMP instance.
98	*/
99	typedef struct
100	{
101	uint32_t PowerMode; /*!< Set comparator operating mode to adjust power and speed.
102	This parameter can be a value of @ref COMP_LL_EC_POWERMODE
103
104	This feature can be modified afterwards using unitary function @ref LL_COMP_SetPowerMode(). */
105
106	uint32_t InputPlus; /*!< Set comparator input plus (non-inverting input).
107	This parameter can be a value of @ref COMP_LL_EC_INPUT_PLUS
108
109	This feature can be modified afterwards using unitary function @ref LL_COMP_SetInputPlus(). */
110
111	uint32_t InputMinus; /*!< Set comparator input minus (inverting input).
112	This parameter can be a value of @ref COMP_LL_EC_INPUT_MINUS
113
114	This feature can be modified afterwards using unitary function @ref LL_COMP_SetInputMinus(). */
115
116	uint32_t InputHysteresis; /*!< Set comparator hysteresis mode of the input minus.
117	This parameter can be a value of @ref COMP_LL_EC_INPUT_HYSTERESIS
118
119	This feature can be modified afterwards using unitary function @ref LL_COMP_SetInputHysteresis(). */
120
121	uint32_t OutputPolarity; /*!< Set comparator output polarity.
122	This parameter can be a value of @ref COMP_LL_EC_OUTPUT_POLARITY
123
124	This feature can be modified afterwards using unitary function @ref LL_COMP_SetOutputPolarity(). */
125
126	uint32_t OutputBlankingSource; /*!< Set comparator blanking source.
127	This parameter can be a value of @ref COMP_LL_EC_OUTPUT_BLANKING_SOURCE
128
129	This feature can be modified afterwards using unitary function @ref LL_COMP_SetOutputBlankingSource(). */
130
131	} LL_COMP_InitTypeDef;
132
133	/**
134	* @}
135	*/
136	#endif /* USE_FULL_LL_DRIVER */
137
138	/* Exported constants --------------------------------------------------------*/
139	/** @defgroup COMP_LL_Exported_Constants COMP Exported Constants
140	* @{
141	*/
142
143	/** @defgroup COMP_LL_EC_COMMON_WINDOWMODE Comparator common modes - Window mode
144	* @{
145	*/
146	#define LL_COMP_WINDOWMODE_DISABLE (0x00000000UL) /!< Window mode disable: Comparators 1 and 2 are independent /
147	#define LL_COMP_WINDOWMODE_COMP1_INPUT_PLUS_COMMON (COMP_CSR_WINMODE \| LL_COMP_WINDOWMODE_COMP_EVEN_REGOFFSET_MASK) /!< Window mode enable: Comparators instances pair COMP1 and COMP2 have their input plus connected together. The common input is COMP1 input plus (COMP2 input plus is no more accessible). /
148	#define LL_COMP_WINDOWMODE_COMP2_INPUT_PLUS_COMMON (COMP_CSR_WINMODE \| LL_COMP_WINDOWMODE_COMP_ODD_REGOFFSET_MASK) /!< Window mode enable: Comparators instances pair COMP1 and COMP2 have their input plus connected together. The common input is COMP2 input plus (COMP1 input plus is no more accessible). /
149	/**
150	* @}
151	*/
152
153	/** @defgroup COMP_LL_EC_COMMON_WINDOWOUTPUT Comparator common modes - Window output
154	* @{
155	*/
156	#define LL_COMP_WINDOWOUTPUT_EACH_COMP (0x00000000UL) /!< Window output default mode: Comparators output are indicating each their own state. To know window mode state: each comparator output must be read, if "((COMPx exclusive or COMPy) == 1)" then monitored signal is within comparators window. The same way, if both comparators output are high, then monitored signal is below window. /
157	#define LL_COMP_WINDOWOUTPUT_COMP1 (COMP_CSR_WINOUT \| LL_COMP_WINDOWMODE_COMP_ODD_REGOFFSET_MASK) /!< Window output synthetized on COMP1 output: COMP1 output is no more indicating its own state, but global window mode state (logical high means monitored signal is within comparators window). /
158	#define LL_COMP_WINDOWOUTPUT_COMP2 (COMP_CSR_WINOUT \| LL_COMP_WINDOWMODE_COMP_EVEN_REGOFFSET_MASK) /!< Window output synthetized on COMP2 output: COMP2 output is no more indicating its own state, but global window mode state (logical high means monitored signal is within comparators window). /
159	#define LL_COMP_WINDOWOUTPUT_BOTH (COMP_CSR_WINOUT \| LL_COMP_WINDOWMODE_COMP_EVEN_REGOFFSET_MASK \| LL_COMP_WINDOWOUTPUT_BOTH_SETTING_MASK) /!< Window output synthetized on both COMP1 and COMP2 output: COMP1 and COMP2 outputs are no more indicating their own state, but global window mode state (logical high means monitored signal is within comparators window). This is a specific configuraton (technically possible but not relevant from application point of view: 2 comparators output used for the same signal level), standard configuraton for window mode is one of the 3 settings above. /
160	/**
161	* @}
162	*/
163
164	/** @defgroup COMP_LL_EC_POWERMODE Comparator modes - Power mode
165	* @{
166	*/
167	#define LL_COMP_POWERMODE_HIGHSPEED (0x00000000UL) /!< COMP power mode to high speed /
168	#define LL_COMP_POWERMODE_MEDIUMSPEED (COMP_CSR_PWRMODE_0) /!< COMP power mode to medium speed /
169	/**
170	* @}
171	*/
172
173	/** @defgroup COMP_LL_EC_INPUT_PLUS Comparator inputs - Input plus (input non-inverting) selection
174	* @{
175	*/
176	#define LL_COMP_INPUT_PLUS_IO1 (0x00000000UL) /!< Comparator input plus connected to IO1 (pin PC5 for COMP1, pin PB4 for COMP2) /
177	#define LL_COMP_INPUT_PLUS_IO2 (COMP_CSR_INPSEL_0) /!< Comparator input plus connected to IO2 (pin PB2 for COMP1, pin PB6 for COMP2) /
178	#define LL_COMP_INPUT_PLUS_IO3 (COMP_CSR_INPSEL_1) /!< Comparator input plus connected to IO3 (pin PA1 for COMP1, pin PA3 for COMP2) /
179	/**
180	* @}
181	*/
182
183	/** @defgroup COMP_LL_EC_INPUT_MINUS Comparator inputs - Input minus (input inverting) selection
184	* @{
185	*/
186	#define LL_COMP_INPUT_MINUS_1_4VREFINT (0x00000000UL) /!< Comparator input minus connected to 1/4 VrefInt /
187	#define LL_COMP_INPUT_MINUS_1_2VREFINT ( COMP_CSR_INMSEL_0) /!< Comparator input minus connected to 1/2 VrefInt /
188	#define LL_COMP_INPUT_MINUS_3_4VREFINT ( COMP_CSR_INMSEL_1 ) /!< Comparator input minus connected to 3/4 VrefInt /
189	#define LL_COMP_INPUT_MINUS_VREFINT ( COMP_CSR_INMSEL_1 \| COMP_CSR_INMSEL_0) /!< Comparator input minus connected to VrefInt /
190	#define LL_COMP_INPUT_MINUS_DAC1_CH1 ( COMP_CSR_INMSEL_2 ) /!< Comparator input minus connected to DAC1 channel 1 (DAC_OUT1) /
191	#define LL_COMP_INPUT_MINUS_DAC1_CH2 ( COMP_CSR_INMSEL_2 \| COMP_CSR_INMSEL_0) /!< Comparator input minus connected to DAC1 channel 2 (DAC_OUT2) /
192	#define LL_COMP_INPUT_MINUS_IO1 ( COMP_CSR_INMSEL_2 \| COMP_CSR_INMSEL_1 ) /!< Comparator input minus connected to IO1 (pin PA9 for COMP1, pin PB3 for COMP2) /
193	#define LL_COMP_INPUT_MINUS_IO2 ( COMP_CSR_INMSEL_2 \| COMP_CSR_INMSEL_1 \| COMP_CSR_INMSEL_0) /!< Comparator input minus connected to IO2 (pin PC4 for COMP1, pin PB7 for COMP2) /
194	#define LL_COMP_INPUT_MINUS_IO3 (COMP_CSR_INMSEL_3 ) /!< Comparator input minus connected to IO3 (pin PA0 for COMP1, pin PA2 for COMP2) /
195	/**
196	* @}
197	*/
198
199	/** @defgroup COMP_LL_EC_INPUT_HYSTERESIS Comparator input - Hysteresis
200	* @{
201	*/
202	#define LL_COMP_HYSTERESIS_NONE (0x00000000UL) /!< No hysteresis /
203	#define LL_COMP_HYSTERESIS_LOW ( COMP_CSR_HYST_0) /!< Hysteresis level low /
204	#define LL_COMP_HYSTERESIS_MEDIUM (COMP_CSR_HYST_1 ) /!< Hysteresis level medium /
205	#define LL_COMP_HYSTERESIS_HIGH (COMP_CSR_HYST_1 \| COMP_CSR_HYST_0) /!< Hysteresis level high /
206	/**
207	* @}
208	*/
209
210	/** @defgroup COMP_LL_EC_OUTPUT_POLARITY Comparator output - Output polarity
211	* @{
212	*/
213	#define LL_COMP_OUTPUTPOL_NONINVERTED (0x00000000UL) /!< COMP output polarity is not inverted: comparator output is high when the plus (non-inverting) input is at a higher voltage than the minus (inverting) input /
214	#define LL_COMP_OUTPUTPOL_INVERTED (COMP_CSR_POLARITY) /!< COMP output polarity is inverted: comparator output is low when the plus (non-inverting) input is at a lower voltage than the minus (inverting) input /
215	/**
216	* @}
217	*/
218
219	/** @defgroup COMP_LL_EC_OUTPUT_BLANKING_SOURCE Comparator output - Blanking source
220	* @{
221	*/
222	#define LL_COMP_BLANKINGSRC_NONE (0x00000000UL) /!<Comparator output without blanking /
223	/* Note: Output blanking source common to all COMP instances */
224	#define LL_COMP_BLANKINGSRC_TIM1_OC4 (COMP_CSR_BLANKING_0) /!< Comparator output blanking source TIM1 OC4 (common to all COMP instances: COMP1, COMP2) /
225	#define LL_COMP_BLANKINGSRC_TIM1_OC5 (COMP_CSR_BLANKING_1) /!< Comparator output blanking source TIM1 OC5 (common to all COMP instances: COMP1, COMP2) /
226	#define LL_COMP_BLANKINGSRC_TIM2_OC3 (COMP_CSR_BLANKING_2) /!< Comparator output blanking source TIM2 OC3 (common to all COMP instances: COMP1, COMP2) /
227	#define LL_COMP_BLANKINGSRC_TIM3_OC3 (COMP_CSR_BLANKING_3) /!< Comparator output blanking source TIM3 OC3 (common to all COMP instances: COMP1, COMP2) /
228	#define LL_COMP_BLANKINGSRC_TIM15_OC2 (COMP_CSR_BLANKING_4) /!< Comparator output blanking source TIM15 OC2 (common to all COMP instances: COMP1, COMP2) /
229	/**
230	* @}
231	*/
232
233	/** @defgroup COMP_LL_EC_OUTPUT_LEVEL Comparator output - Output level
234	* @{
235	*/
236	#define LL_COMP_OUTPUT_LEVEL_LOW (0x00000000UL) /!< Comparator output level low (if the polarity is not inverted, otherwise to be complemented) /
237	#define LL_COMP_OUTPUT_LEVEL_HIGH (0x00000001UL) /!< Comparator output level high (if the polarity is not inverted, otherwise to be complemented) /
238	/**
239	* @}
240	*/
241
242	/** @defgroup COMP_LL_EC_HW_DELAYS Definitions of COMP hardware constraints delays
243	* @note Only COMP peripheral HW delays are defined in COMP LL driver driver,
244	* not timeout values.
245	* For details on delays values, refer to descriptions in source code
246	* above each literal definition.
247	* @{
248	*/
249
250	/* Delay for comparator startup time. */
251	/* Note: Delay required to reach propagation delay specification. */
252	/* Literal set to maximum value (refer to device datasheet, */
253	/* parameter "tSTART"). */
254	/* Unit: us */
255	#define LL_COMP_DELAY_STARTUP_US ( 80UL) /!< Delay for COMP startup time /
256
257	/* Delay for comparator voltage scaler stabilization time. */
258	/* Note: Voltage scaler is used when selecting comparator input */
259	/* based on VrefInt: VrefInt or subdivision of VrefInt. */
260	/* Literal set to maximum value (refer to device datasheet, */
261	/* parameter "tSTART_SCALER"). */
262	/* Unit: us */
263	#define LL_COMP_DELAY_VOLTAGE_SCALER_STAB_US ( 200UL) /!< Delay for COMP voltage scaler stabilization time /
264
265	/**
266	* @}
267	*/
268
269	/**
270	* @}
271	*/
272
273	/* Exported macro ------------------------------------------------------------*/
274	/** @defgroup COMP_LL_Exported_Macros COMP Exported Macros
275	* @{
276	*/
277	/** @defgroup COMP_LL_EM_WRITE_READ Common write and read registers macro
278	* @{
279	*/
280
281	/**
282	* @brief Write a value in COMP register
283	* @param __INSTANCE__ comparator instance
284	* @param __REG__ Register to be written
285	* @param __VALUE__ Value to be written in the register
286	* @retval None
287	*/
288	#define LL_COMP_WriteReg(__INSTANCE__, __REG__, __VALUE__) WRITE_REG((__INSTANCE__)->__REG__, (__VALUE__))
289
290	/**
291	* @brief Read a value in COMP register
292	* @param __INSTANCE__ comparator instance
293	* @param __REG__ Register to be read
294	* @retval Register value
295	*/
296	#define LL_COMP_ReadReg(__INSTANCE__, __REG__) READ_REG((__INSTANCE__)->__REG__)
297	/**
298	* @}
299	*/
300
301	/** @defgroup COMP_LL_EM_HELPER_MACRO COMP helper macro
302	* @{
303	*/
304
305	/**
306	* @brief Helper macro to select the COMP common instance
307	* to which is belonging the selected COMP instance.
308	* @note COMP common register instance can be used to
309	* set parameters common to several COMP instances.
310	* Refer to functions having argument "COMPxy_COMMON" as parameter.
311	* @param __COMPx__ COMP instance
312	* @retval COMP common instance or value "0" if there is no COMP common instance.
313	*/
314	#define __LL_COMP_COMMON_INSTANCE(__COMPx__) \
315	(COMP12_COMMON)
316
317	/**
318	* @}
319	*/
320
321	/**
322	* @}
323	*/
324
325	/* Exported functions --------------------------------------------------------*/
326	/** @defgroup COMP_LL_Exported_Functions COMP Exported Functions
327	* @{
328	*/
329
330	/** @defgroup COMP_LL_EF_Configuration_comparator_common Configuration of COMP hierarchical scope: common to several COMP instances
331	* @{
332	*/
333
334	/**
335	* @brief Set window mode of a pair of comparators instances
336	* (2 consecutive COMP instances odd and even COMP<x> and COMP<x+1>).
337	* @rmtoll CSR WINMODE LL_COMP_SetCommonWindowMode
338	* @param COMPxy_COMMON Comparator common instance
339	* (can be set directly from CMSIS definition or by using helper macro @ref __LL_COMP_COMMON_INSTANCE() )
340	* @param WindowMode This parameter can be one of the following values:
341	* @arg @ref LL_COMP_WINDOWMODE_DISABLE
342	* @arg @ref LL_COMP_WINDOWMODE_COMP1_INPUT_PLUS_COMMON
343	* @arg @ref LL_COMP_WINDOWMODE_COMP2_INPUT_PLUS_COMMON
344	* @retval None
345	*/
346	__STATIC_INLINE void LL_COMP_SetCommonWindowMode(COMP_Common_TypeDef *COMPxy_COMMON, uint32_t WindowMode)
347	{
348	/* Note: On this STM32 serie, window mode can be set from one of the pair */
349	/* of COMP instances: COMP1 or COMP2. */
350	register __IO uint32_t *preg = __COMP_PTR_REG_OFFSET(COMPxy_COMMON->CSR_ODD, (WindowMode & LL_COMP_WINDOWMODE_COMPX_REGOFFSET_MASK));
351
352	/* Clear the potential previous setting of window mode */
353	register __IO uint32_t *preg_clear = __COMP_PTR_REG_OFFSET(COMPxy_COMMON->CSR_ODD, (~(WindowMode & LL_COMP_WINDOWMODE_COMPX_REGOFFSET_MASK) & 0x1UL));
354	CLEAR_BIT(*preg_clear,
355	COMP_CSR_WINMODE
356	);
357
358	/* Set window mode */
359	MODIFY_REG(*preg,
360	COMP_CSR_WINMODE,
361	(WindowMode & LL_COMP_WINDOWMODE_COMPX_SETTING_MASK)
362	);
363	}
364
365	/**
366	* @brief Get window mode of a pair of comparators instances
367	* (2 consecutive COMP instances odd and even COMP<x> and COMP<x+1>).
368	* @rmtoll CSR WINMODE LL_COMP_GetCommonWindowMode
369	* @param COMPxy_COMMON Comparator common instance
370	* (can be set directly from CMSIS definition or by using helper macro @ref __LL_COMP_COMMON_INSTANCE() )
371	* @retval Returned value can be one of the following values:
372	* @arg @ref LL_COMP_WINDOWMODE_DISABLE
373	* @arg @ref LL_COMP_WINDOWMODE_COMP1_INPUT_PLUS_COMMON
374	* @arg @ref LL_COMP_WINDOWMODE_COMP2_INPUT_PLUS_COMMON
375	*/
376	__STATIC_INLINE uint32_t LL_COMP_GetCommonWindowMode(COMP_Common_TypeDef *COMPxy_COMMON)
377	{
378	/* Note: On this STM32 serie, window mode can be set from one of the pair */
379	/* of COMP instances: COMP1 or COMP2. */
380	register const uint32_t window_mode_comp_odd = (uint32_t)READ_BIT(COMPxy_COMMON->CSR_ODD, COMP_CSR_WINMODE);
381	register const uint32_t window_mode_comp_even = (uint32_t)READ_BIT(COMPxy_COMMON->CSR_EVEN, COMP_CSR_WINMODE);
382
383	return (uint32_t)(window_mode_comp_odd
384	\| window_mode_comp_even
385	\| ((window_mode_comp_even >> LL_COMP_WINDOWMODE_BITOFFSET_POS) * LL_COMP_WINDOWMODE_COMP_EVEN_REGOFFSET_MASK));
386	}
387
388	/**
389	* @brief Set window output of a pair of comparators instances
390	* (2 consecutive COMP instances odd and even COMP<x> and COMP<x+1>).
391	* @rmtoll CSR WINOUT LL_COMP_SetCommonWindowOutput
392	* @param COMPxy_COMMON Comparator common instance
393	* (can be set directly from CMSIS definition or by using helper macro @ref __LL_COMP_COMMON_INSTANCE() )
394	* @param WindowOutput This parameter can be one of the following values:
395	* @arg @ref LL_COMP_WINDOWOUTPUT_EACH_COMP
396	* @arg @ref LL_COMP_WINDOWOUTPUT_COMP1
397	* @arg @ref LL_COMP_WINDOWOUTPUT_COMP2
398	* @arg @ref LL_COMP_WINDOWOUTPUT_BOTH
399	* @retval None
400	*/
401	__STATIC_INLINE void LL_COMP_SetCommonWindowOutput(COMP_Common_TypeDef *COMPxy_COMMON, uint32_t WindowOutput)
402	{
403	register __IO uint32_t *preg = __COMP_PTR_REG_OFFSET(COMPxy_COMMON->CSR_ODD, (WindowOutput & LL_COMP_WINDOWMODE_COMPX_REGOFFSET_MASK));
404
405	/* Clear the potential previous setting of window output on the relevant comparator instance */
406	/* (clear bit of window output unless specific case of setting of comparator both output selected) */
407	register __IO uint32_t *preg_clear = __COMP_PTR_REG_OFFSET(COMPxy_COMMON->CSR_ODD, (~(WindowOutput & LL_COMP_WINDOWMODE_COMPX_REGOFFSET_MASK) & 0x1UL));
408	MODIFY_REG(*preg_clear,
409	COMP_CSR_WINOUT,
410	((WindowOutput & LL_COMP_WINDOWOUTPUT_BOTH_SETTING_MASK) >> LL_COMP_WINDOWOUTPUT_BOTH_POS_VS_WINDOW)
411	);
412
413	/* Set window output */
414	MODIFY_REG(*preg,
415	COMP_CSR_WINOUT,
416	(WindowOutput & LL_COMP_WINDOWOUTPUT_COMPX_SETTING_MASK)
417	);
418	}
419
420	/**
421	* @brief Get window output of a pair of comparators instances
422	* (2 consecutive COMP instances odd and even COMP<x> and COMP<x+1>).
423	* @rmtoll CSR WINMODE LL_COMP_GetCommonWindowOutput
424	* @param COMPxy_COMMON Comparator common instance
425	* (can be set directly from CMSIS definition or by using helper macro @ref __LL_COMP_COMMON_INSTANCE() )
426	* @retval Returned value can be one of the following values:
427	* @arg @ref LL_COMP_WINDOWOUTPUT_EACH_COMP
428	* @arg @ref LL_COMP_WINDOWOUTPUT_COMP1
429	* @arg @ref LL_COMP_WINDOWOUTPUT_COMP2
430	* @arg @ref LL_COMP_WINDOWOUTPUT_BOTH
431	*/
432	__STATIC_INLINE uint32_t LL_COMP_GetCommonWindowOutput(COMP_Common_TypeDef *COMPxy_COMMON)
433	{
434	register const uint32_t window_output_comp_odd = (uint32_t)READ_BIT(COMPxy_COMMON->CSR_ODD, COMP_CSR_WINOUT);
435	register const uint32_t window_output_comp_even = (uint32_t)READ_BIT(COMPxy_COMMON->CSR_EVEN, COMP_CSR_WINOUT);
436
437	/* Construct value corresponding to LL_COMP_WINDOWOUTPUT_xxx */
438	return (uint32_t)(window_output_comp_odd
439	\| window_output_comp_even
440	\| ((window_output_comp_even >> COMP_CSR_WINOUT_Pos) * LL_COMP_WINDOWMODE_COMP_EVEN_REGOFFSET_MASK)
441	\| (window_output_comp_odd + window_output_comp_even));
442	}
443
444	/**
445	* @}
446	*/
447
448	/** @defgroup COMP_LL_EF_Configuration_comparator_modes Configuration of comparator modes
449	* @{
450	*/
451
452	/**
453	* @brief Set comparator instance operating mode to adjust power and speed.
454	* @rmtoll CSR PWRMODE LL_COMP_SetPowerMode
455	* @param COMPx Comparator instance
456	* @param PowerMode This parameter can be one of the following values:
457	* @arg @ref LL_COMP_POWERMODE_HIGHSPEED
458	* @arg @ref LL_COMP_POWERMODE_MEDIUMSPEED
459	* @retval None
460	*/
461	__STATIC_INLINE void LL_COMP_SetPowerMode(COMP_TypeDef *COMPx, uint32_t PowerMode)
462	{
463	MODIFY_REG(COMPx->CSR, COMP_CSR_PWRMODE, PowerMode);
464	}
465
466	/**
467	* @brief Get comparator instance operating mode to adjust power and speed.
468	* @rmtoll CSR PWRMODE LL_COMP_GetPowerMode
469	* @param COMPx Comparator instance
470	* @retval Returned value can be one of the following values:
471	* @arg @ref LL_COMP_POWERMODE_HIGHSPEED
472	* @arg @ref LL_COMP_POWERMODE_MEDIUMSPEED
473	*/
474	__STATIC_INLINE uint32_t LL_COMP_GetPowerMode(COMP_TypeDef *COMPx)
475	{
476	return (uint32_t)(READ_BIT(COMPx->CSR, COMP_CSR_PWRMODE));
477	}
478
479	/**
480	* @}
481	*/
482
483	/** @defgroup COMP_LL_EF_Configuration_comparator_inputs Configuration of comparator inputs
484	* @{
485	*/
486
487	/**
488	* @brief Set comparator inputs minus (inverting) and plus (non-inverting).
489	* @note In case of comparator input selected to be connected to IO:
490	* GPIO pins are specific to each comparator instance.
491	* Refer to description of parameters or to reference manual.
492	* @note On this STM32 serie, a voltage scaler is used
493	* when COMP input is based on VrefInt (VrefInt or subdivision
494	* of VrefInt):
495	* Voltage scaler requires a delay for voltage stabilization.
496	* Refer to device datasheet, parameter "tSTART_SCALER".
497	* @rmtoll CSR INMSEL LL_COMP_ConfigInputs\n
498	* CSR INPSEL LL_COMP_ConfigInputs\n
499	* @param COMPx Comparator instance
500	* @param InputMinus This parameter can be one of the following values:
501	* @arg @ref LL_COMP_INPUT_MINUS_1_4VREFINT
502	* @arg @ref LL_COMP_INPUT_MINUS_1_2VREFINT
503	* @arg @ref LL_COMP_INPUT_MINUS_3_4VREFINT
504	* @arg @ref LL_COMP_INPUT_MINUS_VREFINT
505	* @arg @ref LL_COMP_INPUT_MINUS_DAC1_CH1
506	* @arg @ref LL_COMP_INPUT_MINUS_DAC1_CH2
507	* @arg @ref LL_COMP_INPUT_MINUS_IO1
508	* @arg @ref LL_COMP_INPUT_MINUS_IO2
509	* @arg @ref LL_COMP_INPUT_MINUS_IO3
510	* @param InputPlus This parameter can be one of the following values:
511	* @arg @ref LL_COMP_INPUT_PLUS_IO1
512	* @arg @ref LL_COMP_INPUT_PLUS_IO2
513	* @arg @ref LL_COMP_INPUT_PLUS_IO3
514	* @retval None
515	*/
516	__STATIC_INLINE void LL_COMP_ConfigInputs(COMP_TypeDef *COMPx, uint32_t InputMinus, uint32_t InputPlus)
517	{
518	MODIFY_REG(COMPx->CSR,
519	COMP_CSR_INMSEL \| COMP_CSR_INPSEL,
520	InputMinus \| InputPlus);
521	}
522
523	/**
524	* @brief Set comparator input plus (non-inverting).
525	* @note In case of comparator input selected to be connected to IO:
526	* GPIO pins are specific to each comparator instance.
527	* Refer to description of parameters or to reference manual.
528	* @rmtoll CSR INPSEL LL_COMP_SetInputPlus
529	* @param COMPx Comparator instance
530	* @param InputPlus This parameter can be one of the following values:
531	* @arg @ref LL_COMP_INPUT_PLUS_IO1
532	* @arg @ref LL_COMP_INPUT_PLUS_IO2
533	* @arg @ref LL_COMP_INPUT_PLUS_IO3
534	* @retval None
535	*/
536	__STATIC_INLINE void LL_COMP_SetInputPlus(COMP_TypeDef *COMPx, uint32_t InputPlus)
537	{
538	MODIFY_REG(COMPx->CSR, COMP_CSR_INPSEL, InputPlus);
539	}
540
541	/**
542	* @brief Get comparator input plus (non-inverting).
543	* @note In case of comparator input selected to be connected to IO:
544	* GPIO pins are specific to each comparator instance.
545	* Refer to description of parameters or to reference manual.
546	* @rmtoll CSR INPSEL LL_COMP_GetInputPlus
547	* @param COMPx Comparator instance
548	* @retval Returned value can be one of the following values:
549	* @arg @ref LL_COMP_INPUT_PLUS_IO1
550	* @arg @ref LL_COMP_INPUT_PLUS_IO2
551	* @arg @ref LL_COMP_INPUT_PLUS_IO3
552	*/
553	__STATIC_INLINE uint32_t LL_COMP_GetInputPlus(COMP_TypeDef *COMPx)
554	{
555	return (uint32_t)(READ_BIT(COMPx->CSR, COMP_CSR_INPSEL));
556	}
557
558	/**
559	* @brief Set comparator input minus (inverting).
560	* @note In case of comparator input selected to be connected to IO:
561	* GPIO pins are specific to each comparator instance.
562	* Refer to description of parameters or to reference manual.
563	* @note On this STM32 serie, a voltage scaler is used
564	* when COMP input is based on VrefInt (VrefInt or subdivision
565	* of VrefInt):
566	* Voltage scaler requires a delay for voltage stabilization.
567	* Refer to device datasheet, parameter "tSTART_SCALER".
568	* @rmtoll CSR INMSEL LL_COMP_SetInputMinus
569	* @param COMPx Comparator instance
570	* @param InputMinus This parameter can be one of the following values:
571	* @arg @ref LL_COMP_INPUT_MINUS_1_4VREFINT
572	* @arg @ref LL_COMP_INPUT_MINUS_1_2VREFINT
573	* @arg @ref LL_COMP_INPUT_MINUS_3_4VREFINT
574	* @arg @ref LL_COMP_INPUT_MINUS_VREFINT
575	* @arg @ref LL_COMP_INPUT_MINUS_DAC1_CH1
576	* @arg @ref LL_COMP_INPUT_MINUS_DAC1_CH2
577	* @arg @ref LL_COMP_INPUT_MINUS_IO1
578	* @arg @ref LL_COMP_INPUT_MINUS_IO2
579	* @arg @ref LL_COMP_INPUT_MINUS_IO3
580	* @retval None
581	*/
582	__STATIC_INLINE void LL_COMP_SetInputMinus(COMP_TypeDef *COMPx, uint32_t InputMinus)
583	{
584	MODIFY_REG(COMPx->CSR, COMP_CSR_INMSEL, InputMinus);
585	}
586
587	/**
588	* @brief Get comparator input minus (inverting).
589	* @note In case of comparator input selected to be connected to IO:
590	* GPIO pins are specific to each comparator instance.
591	* Refer to description of parameters or to reference manual.
592	* @rmtoll CSR INMSEL LL_COMP_GetInputMinus
593	* @param COMPx Comparator instance
594	* @retval Returned value can be one of the following values:
595	* @arg @ref LL_COMP_INPUT_MINUS_1_4VREFINT
596	* @arg @ref LL_COMP_INPUT_MINUS_1_2VREFINT
597	* @arg @ref LL_COMP_INPUT_MINUS_3_4VREFINT
598	* @arg @ref LL_COMP_INPUT_MINUS_VREFINT
599	* @arg @ref LL_COMP_INPUT_MINUS_DAC1_CH1
600	* @arg @ref LL_COMP_INPUT_MINUS_DAC1_CH2
601	* @arg @ref LL_COMP_INPUT_MINUS_IO1
602	* @arg @ref LL_COMP_INPUT_MINUS_IO2
603	* @arg @ref LL_COMP_INPUT_MINUS_IO3
604	*/
605	__STATIC_INLINE uint32_t LL_COMP_GetInputMinus(COMP_TypeDef *COMPx)
606	{
607	return (uint32_t)(READ_BIT(COMPx->CSR, COMP_CSR_INMSEL));
608	}
609
610	/**
611	* @brief Set comparator instance hysteresis mode of the input minus (inverting input).
612	* @rmtoll CSR HYST LL_COMP_SetInputHysteresis
613	* @param COMPx Comparator instance
614	* @param InputHysteresis This parameter can be one of the following values:
615	* @arg @ref LL_COMP_HYSTERESIS_NONE
616	* @arg @ref LL_COMP_HYSTERESIS_LOW
617	* @arg @ref LL_COMP_HYSTERESIS_MEDIUM
618	* @arg @ref LL_COMP_HYSTERESIS_HIGH
619	* @retval None
620	*/
621	__STATIC_INLINE void LL_COMP_SetInputHysteresis(COMP_TypeDef *COMPx, uint32_t InputHysteresis)
622	{
623	MODIFY_REG(COMPx->CSR, COMP_CSR_HYST, InputHysteresis);
624	}
625
626	/**
627	* @brief Get comparator instance hysteresis mode of the minus (inverting) input.
628	* @rmtoll CSR HYST LL_COMP_GetInputHysteresis
629	* @param COMPx Comparator instance
630	* @retval Returned value can be one of the following values:
631	* @arg @ref LL_COMP_HYSTERESIS_NONE
632	* @arg @ref LL_COMP_HYSTERESIS_LOW
633	* @arg @ref LL_COMP_HYSTERESIS_MEDIUM
634	* @arg @ref LL_COMP_HYSTERESIS_HIGH
635	*/
636	__STATIC_INLINE uint32_t LL_COMP_GetInputHysteresis(COMP_TypeDef *COMPx)
637	{
638	return (uint32_t)(READ_BIT(COMPx->CSR, COMP_CSR_HYST));
639	}
640
641	/**
642	* @}
643	*/
644
645	/** @defgroup COMP_LL_EF_Configuration_comparator_output Configuration of comparator output
646	* @{
647	*/
648
649	/**
650	* @brief Set comparator instance output polarity.
651	* @rmtoll CSR POLARITY LL_COMP_SetOutputPolarity
652	* @param COMPx Comparator instance
653	* @param OutputPolarity This parameter can be one of the following values:
654	* @arg @ref LL_COMP_OUTPUTPOL_NONINVERTED
655	* @arg @ref LL_COMP_OUTPUTPOL_INVERTED
656	* @retval None
657	*/
658	__STATIC_INLINE void LL_COMP_SetOutputPolarity(COMP_TypeDef *COMPx, uint32_t OutputPolarity)
659	{
660	MODIFY_REG(COMPx->CSR, COMP_CSR_POLARITY, OutputPolarity);
661	}
662
663	/**
664	* @brief Get comparator instance output polarity.
665	* @rmtoll CSR POLARITY LL_COMP_GetOutputPolarity
666	* @param COMPx Comparator instance
667	* @retval Returned value can be one of the following values:
668	* @arg @ref LL_COMP_OUTPUTPOL_NONINVERTED
669	* @arg @ref LL_COMP_OUTPUTPOL_INVERTED
670	*/
671	__STATIC_INLINE uint32_t LL_COMP_GetOutputPolarity(COMP_TypeDef *COMPx)
672	{
673	return (uint32_t)(READ_BIT(COMPx->CSR, COMP_CSR_POLARITY));
674	}
675
676	/**
677	* @brief Set comparator instance blanking source.
678	* @note Blanking source may be specific to each comparator instance.
679	* Refer to description of parameters or to reference manual.
680	* @note Availability of parameters of blanking source from timer
681	* depends on timers availability on the selected device.
682	* @rmtoll CSR BLANKING LL_COMP_SetOutputBlankingSource
683	* @param COMPx Comparator instance
684	* @param BlankingSource This parameter can be one of the following values:
685	* @arg @ref LL_COMP_BLANKINGSRC_NONE
686	* @arg @ref LL_COMP_BLANKINGSRC_TIM1_OC4 (1)
687	* @arg @ref LL_COMP_BLANKINGSRC_TIM1_OC5 (1)
688	* @arg @ref LL_COMP_BLANKINGSRC_TIM2_OC3 (1)
689	* @arg @ref LL_COMP_BLANKINGSRC_TIM3_OC3 (1)
690	* @arg @ref LL_COMP_BLANKINGSRC_TIM15_OC2 (1)
691	*
692	* (1) Parameter availability depending on timer availability
693	* on the selected device.
694	* @retval None
695	*/
696	__STATIC_INLINE void LL_COMP_SetOutputBlankingSource(COMP_TypeDef *COMPx, uint32_t BlankingSource)
697	{
698	MODIFY_REG(COMPx->CSR, COMP_CSR_BLANKING, BlankingSource);
699	}
700
701	/**
702	* @brief Get comparator instance blanking source.
703	* @note Availability of parameters of blanking source from timer
704	* depends on timers availability on the selected device.
705	* @note Blanking source may be specific to each comparator instance.
706	* Refer to description of parameters or to reference manual.
707	* @rmtoll CSR BLANKING LL_COMP_GetOutputBlankingSource
708	* @param COMPx Comparator instance
709	* @retval Returned value can be one of the following values:
710	* @arg @ref LL_COMP_BLANKINGSRC_NONE
711	* @arg @ref LL_COMP_BLANKINGSRC_TIM1_OC4 (1)
712	* @arg @ref LL_COMP_BLANKINGSRC_TIM1_OC5 (1)
713	* @arg @ref LL_COMP_BLANKINGSRC_TIM2_OC3 (1)
714	* @arg @ref LL_COMP_BLANKINGSRC_TIM3_OC3 (1)
715	* @arg @ref LL_COMP_BLANKINGSRC_TIM15_OC2 (1)
716	*
717	* (1) Parameter availability depending on timer availability
718	* on the selected device.
719	*/
720	__STATIC_INLINE uint32_t LL_COMP_GetOutputBlankingSource(COMP_TypeDef *COMPx)
721	{
722	return (uint32_t)(READ_BIT(COMPx->CSR, COMP_CSR_BLANKING));
723	}
724
725	/**
726	* @}
727	*/
728
729	/** @defgroup COMP_LL_EF_Operation Operation on comparator instance
730	* @{
731	*/
732
733	/**
734	* @brief Enable comparator instance.
735	* @note After enable from off state, comparator requires a delay
736	* to reach reach propagation delay specification.
737	* Refer to device datasheet, parameter "tSTART".
738	* @rmtoll CSR EN LL_COMP_Enable
739	* @param COMPx Comparator instance
740	* @retval None
741	*/
742	__STATIC_INLINE void LL_COMP_Enable(COMP_TypeDef *COMPx)
743	{
744	SET_BIT(COMPx->CSR, COMP_CSR_EN);
745	}
746
747	/**
748	* @brief Disable comparator instance.
749	* @rmtoll CSR EN LL_COMP_Disable
750	* @param COMPx Comparator instance
751	* @retval None
752	*/
753	__STATIC_INLINE void LL_COMP_Disable(COMP_TypeDef *COMPx)
754	{
755	CLEAR_BIT(COMPx->CSR, COMP_CSR_EN);
756	}
757
758	/**
759	* @brief Get comparator enable state
760	* (0: COMP is disabled, 1: COMP is enabled)
761	* @rmtoll CSR EN LL_COMP_IsEnabled
762	* @param COMPx Comparator instance
763	* @retval State of bit (1 or 0).
764	*/
765	__STATIC_INLINE uint32_t LL_COMP_IsEnabled(COMP_TypeDef *COMPx)
766	{
767	return ((READ_BIT(COMPx->CSR, COMP_CSR_EN) == (COMP_CSR_EN)) ? 1UL : 0UL);
768	}
769
770	/**
771	* @brief Lock comparator instance.
772	* @note Once locked, comparator configuration can be accessed in read-only.
773	* @note The only way to unlock the comparator is a device hardware reset.
774	* @rmtoll CSR LOCK LL_COMP_Lock
775	* @param COMPx Comparator instance
776	* @retval None
777	*/
778	__STATIC_INLINE void LL_COMP_Lock(COMP_TypeDef *COMPx)
779	{
780	SET_BIT(COMPx->CSR, COMP_CSR_LOCK);
781	}
782
783	/**
784	* @brief Get comparator lock state
785	* (0: COMP is unlocked, 1: COMP is locked).
786	* @note Once locked, comparator configuration can be accessed in read-only.
787	* @note The only way to unlock the comparator is a device hardware reset.
788	* @rmtoll CSR LOCK LL_COMP_IsLocked
789	* @param COMPx Comparator instance
790	* @retval State of bit (1 or 0).
791	*/
792	__STATIC_INLINE uint32_t LL_COMP_IsLocked(COMP_TypeDef *COMPx)
793	{
794	return ((READ_BIT(COMPx->CSR, COMP_CSR_LOCK) == (COMP_CSR_LOCK)) ? 1UL : 0UL);
795	}
796
797	/**
798	* @brief Read comparator instance output level.
799	* @note The comparator output level depends on the selected polarity
800	* (Refer to function @ref LL_COMP_SetOutputPolarity()).
801	* If the comparator polarity is not inverted:
802	* - Comparator output is low when the input plus
803	* is at a lower voltage than the input minus
804	* - Comparator output is high when the input plus
805	* is at a higher voltage than the input minus
806	* If the comparator polarity is inverted:
807	* - Comparator output is high when the input plus
808	* is at a lower voltage than the input minus
809	* - Comparator output is low when the input plus
810	* is at a higher voltage than the input minus
811	* @rmtoll CSR VALUE LL_COMP_ReadOutputLevel
812	* @param COMPx Comparator instance
813	* @retval Returned value can be one of the following values:
814	* @arg @ref LL_COMP_OUTPUT_LEVEL_LOW
815	* @arg @ref LL_COMP_OUTPUT_LEVEL_HIGH
816	*/
817	__STATIC_INLINE uint32_t LL_COMP_ReadOutputLevel(COMP_TypeDef *COMPx)
818	{
819	return (uint32_t)(READ_BIT(COMPx->CSR, COMP_CSR_VALUE)
820	>> LL_COMP_OUTPUT_LEVEL_BITOFFSET_POS);
821	}
822
823	/**
824	* @}
825	*/
826
827	#if defined(USE_FULL_LL_DRIVER)
828	/** @defgroup COMP_LL_EF_Init Initialization and de-initialization functions
829	* @{
830	*/
831
832	ErrorStatus LL_COMP_DeInit(COMP_TypeDef *COMPx);
833	ErrorStatus LL_COMP_Init(COMP_TypeDef COMPx, LL_COMP_InitTypeDef COMP_InitStruct);
834	void LL_COMP_StructInit(LL_COMP_InitTypeDef *COMP_InitStruct);
835
836	/**
837	* @}
838	*/
839	#endif /* USE_FULL_LL_DRIVER */
840
841	/**
842	* @}
843	*/
844
845	/**
846	* @}
847	*/
848
849	/**
850	* @}
851	*/
852
853	#endif /* COMP1 \|\| COMP2 */
854
855	/**
856	* @}
857	*/
858
859	#ifdef __cplusplus
860	}
861	#endif
862
863	#endif /* STM32G0xx_LL_COMP_H */
864
865	/********************** (C) COPYRIGHT STMicroelectronics *END OF FILE**/

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source: trunk/firmware/Drivers/STM32G0xx_HAL_Driver/Inc/stm32g0xx_ll_comp.h

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