summaryrefslogtreecommitdiff
path: root/cdc-dials/Drivers/STM32F0xx_HAL_Driver/Inc/stm32f0xx_ll_iwdg.h
blob: 6749c15da5aed30f7565194ddc8e5ca5769f5600 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
/**
  ******************************************************************************
  * @file    stm32f0xx_ll_iwdg.h
  * @author  MCD Application Team
  * @brief   Header file of IWDG LL module.
  ******************************************************************************
  * @attention
  *
  * <h2><center>&copy; Copyright (c) 2016 STMicroelectronics.
  * All rights reserved.</center></h2>
  *
  * This software component is licensed by ST under BSD 3-Clause license,
  * the "License"; You may not use this file except in compliance with the
  * License. You may obtain a copy of the License at:
  *                        opensource.org/licenses/BSD-3-Clause
  *
  ******************************************************************************
  */

/* Define to prevent recursive inclusion -------------------------------------*/
#ifndef STM32F0xx_LL_IWDG_H
#define STM32F0xx_LL_IWDG_H

#ifdef __cplusplus
extern "C" {
#endif

/* Includes ------------------------------------------------------------------*/
#include "stm32f0xx.h"

/** @addtogroup STM32F0xx_LL_Driver
  * @{
  */

#if defined(IWDG)

/** @defgroup IWDG_LL IWDG
  * @{
  */

/* Private types -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/

/* Private constants ---------------------------------------------------------*/
/** @defgroup IWDG_LL_Private_Constants IWDG Private Constants
  * @{
  */
#define LL_IWDG_KEY_RELOAD                 0x0000AAAAU               /*!< IWDG Reload Counter Enable   */
#define LL_IWDG_KEY_ENABLE                 0x0000CCCCU               /*!< IWDG Peripheral Enable       */
#define LL_IWDG_KEY_WR_ACCESS_ENABLE       0x00005555U               /*!< IWDG KR Write Access Enable  */
#define LL_IWDG_KEY_WR_ACCESS_DISABLE      0x00000000U               /*!< IWDG KR Write Access Disable */
/**
  * @}
  */

/* Private macros ------------------------------------------------------------*/

/* Exported types ------------------------------------------------------------*/
/* Exported constants --------------------------------------------------------*/
/** @defgroup IWDG_LL_Exported_Constants IWDG Exported Constants
  * @{
  */

/** @defgroup IWDG_LL_EC_GET_FLAG Get Flags Defines
  * @brief    Flags defines which can be used with LL_IWDG_ReadReg function
  * @{
  */
#define LL_IWDG_SR_PVU                     IWDG_SR_PVU                           /*!< Watchdog prescaler value update */
#define LL_IWDG_SR_RVU                     IWDG_SR_RVU                           /*!< Watchdog counter reload value update */
#define LL_IWDG_SR_WVU                     IWDG_SR_WVU                           /*!< Watchdog counter window value update */
/**
  * @}
  */

/** @defgroup IWDG_LL_EC_PRESCALER  Prescaler Divider
  * @{
  */
#define LL_IWDG_PRESCALER_4                0x00000000U                           /*!< Divider by 4   */
#define LL_IWDG_PRESCALER_8                (IWDG_PR_PR_0)                        /*!< Divider by 8   */
#define LL_IWDG_PRESCALER_16               (IWDG_PR_PR_1)                        /*!< Divider by 16  */
#define LL_IWDG_PRESCALER_32               (IWDG_PR_PR_1 | IWDG_PR_PR_0)         /*!< Divider by 32  */
#define LL_IWDG_PRESCALER_64               (IWDG_PR_PR_2)                        /*!< Divider by 64  */
#define LL_IWDG_PRESCALER_128              (IWDG_PR_PR_2 | IWDG_PR_PR_0)         /*!< Divider by 128 */
#define LL_IWDG_PRESCALER_256              (IWDG_PR_PR_2 | IWDG_PR_PR_1)         /*!< Divider by 256 */
/**
  * @}
  */

/**
  * @}
  */

/* Exported macro ------------------------------------------------------------*/
/** @defgroup IWDG_LL_Exported_Macros IWDG Exported Macros
  * @{
  */

/** @defgroup IWDG_LL_EM_WRITE_READ Common Write and read registers Macros
  * @{
  */

/**
  * @brief  Write a value in IWDG register
  * @param  __INSTANCE__ IWDG Instance
  * @param  __REG__ Register to be written
  * @param  __VALUE__ Value to be written in the register
  * @retval None
  */
#define LL_IWDG_WriteReg(__INSTANCE__, __REG__, __VALUE__) WRITE_REG(__INSTANCE__->__REG__, (__VALUE__))

/**
  * @brief  Read a value in IWDG register
  * @param  __INSTANCE__ IWDG Instance
  * @param  __REG__ Register to be read
  * @retval Register value
  */
#define LL_IWDG_ReadReg(__INSTANCE__, __REG__) READ_REG(__INSTANCE__->__REG__)
/**
  * @}
  */

/**
  * @}
  */


/* Exported functions --------------------------------------------------------*/
/** @defgroup IWDG_LL_Exported_Functions IWDG Exported Functions
  * @{
  */
/** @defgroup IWDG_LL_EF_Configuration Configuration
  * @{
  */

/**
  * @brief  Start the Independent Watchdog
  * @note   Except if the hardware watchdog option is selected
  * @rmtoll KR           KEY           LL_IWDG_Enable
  * @param  IWDGx IWDG Instance
  * @retval None
  */
__STATIC_INLINE void LL_IWDG_Enable(IWDG_TypeDef *IWDGx)
{
  WRITE_REG(IWDGx->KR, LL_IWDG_KEY_ENABLE);
}

/**
  * @brief  Reloads IWDG counter with value defined in the reload register
  * @rmtoll KR           KEY           LL_IWDG_ReloadCounter
  * @param  IWDGx IWDG Instance
  * @retval None
  */
__STATIC_INLINE void LL_IWDG_ReloadCounter(IWDG_TypeDef *IWDGx)
{
  WRITE_REG(IWDGx->KR, LL_IWDG_KEY_RELOAD);
}

/**
  * @brief  Enable write access to IWDG_PR, IWDG_RLR and IWDG_WINR registers
  * @rmtoll KR           KEY           LL_IWDG_EnableWriteAccess
  * @param  IWDGx IWDG Instance
  * @retval None
  */
__STATIC_INLINE void LL_IWDG_EnableWriteAccess(IWDG_TypeDef *IWDGx)
{
  WRITE_REG(IWDGx->KR, LL_IWDG_KEY_WR_ACCESS_ENABLE);
}

/**
  * @brief  Disable write access to IWDG_PR, IWDG_RLR and IWDG_WINR registers
  * @rmtoll KR           KEY           LL_IWDG_DisableWriteAccess
  * @param  IWDGx IWDG Instance
  * @retval None
  */
__STATIC_INLINE void LL_IWDG_DisableWriteAccess(IWDG_TypeDef *IWDGx)
{
  WRITE_REG(IWDGx->KR, LL_IWDG_KEY_WR_ACCESS_DISABLE);
}

/**
  * @brief  Select the prescaler of the IWDG
  * @rmtoll PR           PR            LL_IWDG_SetPrescaler
  * @param  IWDGx IWDG Instance
  * @param  Prescaler This parameter can be one of the following values:
  *         @arg @ref LL_IWDG_PRESCALER_4
  *         @arg @ref LL_IWDG_PRESCALER_8
  *         @arg @ref LL_IWDG_PRESCALER_16
  *         @arg @ref LL_IWDG_PRESCALER_32
  *         @arg @ref LL_IWDG_PRESCALER_64
  *         @arg @ref LL_IWDG_PRESCALER_128
  *         @arg @ref LL_IWDG_PRESCALER_256
  * @retval None
  */
__STATIC_INLINE void LL_IWDG_SetPrescaler(IWDG_TypeDef *IWDGx, uint32_t Prescaler)
{
  WRITE_REG(IWDGx->PR, IWDG_PR_PR & Prescaler);
}

/**
  * @brief  Get the selected prescaler of the IWDG
  * @rmtoll PR           PR            LL_IWDG_GetPrescaler
  * @param  IWDGx IWDG Instance
  * @retval Returned value can be one of the following values:
  *         @arg @ref LL_IWDG_PRESCALER_4
  *         @arg @ref LL_IWDG_PRESCALER_8
  *         @arg @ref LL_IWDG_PRESCALER_16
  *         @arg @ref LL_IWDG_PRESCALER_32
  *         @arg @ref LL_IWDG_PRESCALER_64
  *         @arg @ref LL_IWDG_PRESCALER_128
  *         @arg @ref LL_IWDG_PRESCALER_256
  */
__STATIC_INLINE uint32_t LL_IWDG_GetPrescaler(IWDG_TypeDef *IWDGx)
{
  return (READ_REG(IWDGx->PR));
}

/**
  * @brief  Specify the IWDG down-counter reload value
  * @rmtoll RLR          RL            LL_IWDG_SetReloadCounter
  * @param  IWDGx IWDG Instance
  * @param  Counter Value between Min_Data=0 and Max_Data=0x0FFF
  * @retval None
  */
__STATIC_INLINE void LL_IWDG_SetReloadCounter(IWDG_TypeDef *IWDGx, uint32_t Counter)
{
  WRITE_REG(IWDGx->RLR, IWDG_RLR_RL & Counter);
}

/**
  * @brief  Get the specified IWDG down-counter reload value
  * @rmtoll RLR          RL            LL_IWDG_GetReloadCounter
  * @param  IWDGx IWDG Instance
  * @retval Value between Min_Data=0 and Max_Data=0x0FFF
  */
__STATIC_INLINE uint32_t LL_IWDG_GetReloadCounter(IWDG_TypeDef *IWDGx)
{
  return (READ_REG(IWDGx->RLR));
}

/**
  * @brief  Specify high limit of the window value to be compared to the down-counter.
  * @rmtoll WINR         WIN           LL_IWDG_SetWindow
  * @param  IWDGx IWDG Instance
  * @param  Window Value between Min_Data=0 and Max_Data=0x0FFF
  * @retval None
  */
__STATIC_INLINE void LL_IWDG_SetWindow(IWDG_TypeDef *IWDGx, uint32_t Window)
{
  WRITE_REG(IWDGx->WINR, IWDG_WINR_WIN & Window);
}

/**
  * @brief  Get the high limit of the window value specified.
  * @rmtoll WINR         WIN           LL_IWDG_GetWindow
  * @param  IWDGx IWDG Instance
  * @retval Value between Min_Data=0 and Max_Data=0x0FFF
  */
__STATIC_INLINE uint32_t LL_IWDG_GetWindow(IWDG_TypeDef *IWDGx)
{
  return (READ_REG(IWDGx->WINR));
}

/**
  * @}
  */

/** @defgroup IWDG_LL_EF_FLAG_Management FLAG_Management
  * @{
  */

/**
  * @brief  Check if flag Prescaler Value Update is set or not
  * @rmtoll SR           PVU           LL_IWDG_IsActiveFlag_PVU
  * @param  IWDGx IWDG Instance
  * @retval State of bit (1 or 0).
  */
__STATIC_INLINE uint32_t LL_IWDG_IsActiveFlag_PVU(IWDG_TypeDef *IWDGx)
{
  return ((READ_BIT(IWDGx->SR, IWDG_SR_PVU) == (IWDG_SR_PVU)) ? 1UL : 0UL);
}

/**
  * @brief  Check if flag Reload Value Update is set or not
  * @rmtoll SR           RVU           LL_IWDG_IsActiveFlag_RVU
  * @param  IWDGx IWDG Instance
  * @retval State of bit (1 or 0).
  */
__STATIC_INLINE uint32_t LL_IWDG_IsActiveFlag_RVU(IWDG_TypeDef *IWDGx)
{
  return ((READ_BIT(IWDGx->SR, IWDG_SR_RVU) == (IWDG_SR_RVU)) ? 1UL : 0UL);
}

/**
  * @brief  Check if flag Window Value Update is set or not
  * @rmtoll SR           WVU           LL_IWDG_IsActiveFlag_WVU
  * @param  IWDGx IWDG Instance
  * @retval State of bit (1 or 0).
  */
__STATIC_INLINE uint32_t LL_IWDG_IsActiveFlag_WVU(IWDG_TypeDef *IWDGx)
{
  return ((READ_BIT(IWDGx->SR, IWDG_SR_WVU) == (IWDG_SR_WVU)) ? 1UL : 0UL);
}

/**
  * @brief  Check if all flags Prescaler, Reload & Window Value Update are reset or not
  * @rmtoll SR           PVU           LL_IWDG_IsReady\n
  *         SR           WVU           LL_IWDG_IsReady\n
  *         SR           RVU           LL_IWDG_IsReady
  * @param  IWDGx IWDG Instance
  * @retval State of bits (1 or 0).
  */
__STATIC_INLINE uint32_t LL_IWDG_IsReady(IWDG_TypeDef *IWDGx)
{
  return ((READ_BIT(IWDGx->SR, IWDG_SR_PVU | IWDG_SR_RVU | IWDG_SR_WVU) == 0U) ? 1UL : 0UL);
}

/**
  * @}
  */


/**
  * @}
  */

/**
  * @}
  */

#endif /* IWDG */

/**
  * @}
  */

#ifdef __cplusplus
}
#endif

#endif /* STM32F0xx_LL_IWDG_H */

/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/