1 /**
2 ******************************************************************************
3 * @file stm32g4xx_hal.c
4 * @author MCD Application Team
5 * @brief HAL module driver.
6 * This is the common part of the HAL initialization
7 ******************************************************************************
8 * @attention
9 *
10 * Copyright (c) 2019 STMicroelectronics.
11 * All rights reserved.
12 *
13 * This software is licensed under terms that can be found in the LICENSE file
14 * in the root directory of this software component.
15 * If no LICENSE file comes with this software, it is provided AS-IS.
16 *
17 ******************************************************************************
18 @verbatim
19 ==============================================================================
20 ##### How to use this driver #####
21 ==============================================================================
22 [..]
23 The common HAL driver contains a set of generic and common APIs that can be
24 used by the PPP peripheral drivers and the user to start using the HAL.
25 [..]
26 The HAL contains two APIs' categories:
27 (+) Common HAL APIs
28 (+) Services HAL APIs
29
30 @endverbatim
31 ******************************************************************************
32 */
33
34 /* Includes ------------------------------------------------------------------*/
35 #include "stm32g4xx_hal.h"
36
37 /** @addtogroup STM32G4xx_HAL_Driver
38 * @{
39 */
40
41 /** @defgroup HAL HAL
42 * @brief HAL module driver
43 * @{
44 */
45
46 #ifdef HAL_MODULE_ENABLED
47
48 /* Private typedef -----------------------------------------------------------*/
49 /* Private define ------------------------------------------------------------*/
50 /**
51 * @brief STM32G4xx HAL Driver version number V1.2.2
52 */
53 #define __STM32G4xx_HAL_VERSION_MAIN (0x01U) /*!< [31:24] main version */
54 #define __STM32G4xx_HAL_VERSION_SUB1 (0x02U) /*!< [23:16] sub1 version */
55 #define __STM32G4xx_HAL_VERSION_SUB2 (0x02U) /*!< [15:8] sub2 version */
56 #define __STM32G4xx_HAL_VERSION_RC (0x00U) /*!< [7:0] release candidate */
57 #define __STM32G4xx_HAL_VERSION ((__STM32G4xx_HAL_VERSION_MAIN << 24U)\
58 |(__STM32G4xx_HAL_VERSION_SUB1 << 16U)\
59 |(__STM32G4xx_HAL_VERSION_SUB2 << 8U )\
60 |(__STM32G4xx_HAL_VERSION_RC))
61
62 #if defined(VREFBUF)
63 #define VREFBUF_TIMEOUT_VALUE 10U /* 10 ms */
64 #endif /* VREFBUF */
65
66 /* ------------ SYSCFG registers bit address in the alias region ------------ */
67 #define SYSCFG_OFFSET (SYSCFG_BASE - PERIPH_BASE)
68 /* --- MEMRMP Register ---*/
69 /* Alias word address of FB_MODE bit */
70 #define MEMRMP_OFFSET SYSCFG_OFFSET
71 #define FB_MODE_BitNumber ((uint8_t)0x8)
72 #define FB_MODE_BB (PERIPH_BB_BASE + (MEMRMP_OFFSET * 32) + (FB_MODE_BitNumber * 4))
73
74 /* --- GPC Register ---*/
75 /* Alias word address of CCMER bit */
76 #define SCSR_OFFSET (SYSCFG_OFFSET + 0x18)
77 #define CCMER_BitNumber ((uint8_t)0x0)
78 #define SCSR_CCMER_BB (PERIPH_BB_BASE + (SCSR_OFFSET * 32) + (CCMER_BitNumber * 4))
79
80 /* Private macro -------------------------------------------------------------*/
81 /* Exported variables ---------------------------------------------------------*/
82 /** @defgroup HAL_Exported_Variables HAL Exported Variables
83 * @{
84 */
85 __IO uint32_t uwTick;
86 uint32_t uwTickPrio = (1UL << __NVIC_PRIO_BITS); /* Invalid PRIO */
87 uint32_t uwTickFreq = HAL_TICK_FREQ_DEFAULT; /* 1KHz */
88 /**
89 * @}
90 */
91
92 /* Private function prototypes -----------------------------------------------*/
93 /* Exported functions --------------------------------------------------------*/
94
95 /** @defgroup HAL_Exported_Functions HAL Exported Functions
96 * @{
97 */
98
99 /** @defgroup HAL_Exported_Functions_Group1 Initialization and de-initialization Functions
100 * @brief HAL Initialization and de-initialization functions
101 *
102 @verbatim
103 ===============================================================================
104 ##### Initialization and Configuration functions #####
105 ===============================================================================
106 [..] This section provides functions allowing to:
107 (+) Initialize the Flash interface the NVIC allocation and initial time base
108 clock configuration.
109 (+) De-Initialize common part of the HAL.
110 (+) Configure the time base source to have 1ms time base with a dedicated
111 Tick interrupt priority.
112 (++) SysTick timer is used by default as source of time base, but user
113 can eventually implement his proper time base source (a general purpose
114 timer for example or other time source), keeping in mind that Time base
115 duration should be kept 1ms since PPP_TIMEOUT_VALUEs are defined and
116 handled in milliseconds basis.
117 (++) Time base configuration function (HAL_InitTick ()) is called automatically
118 at the beginning of the program after reset by HAL_Init() or at any time
119 when clock is configured, by HAL_RCC_ClockConfig().
120 (++) Source of time base is configured to generate interrupts at regular
121 time intervals. Care must be taken if HAL_Delay() is called from a
122 peripheral ISR process, the Tick interrupt line must have higher priority
123 (numerically lower) than the peripheral interrupt. Otherwise the caller
124 ISR process will be blocked.
125 (++) functions affecting time base configurations are declared as __weak
126 to make override possible in case of other implementations in user file.
127 @endverbatim
128 * @{
129 */
130
131 /**
132 * @brief This function is used to configure the Flash prefetch, the Instruction and Data caches,
133 * the time base source, NVIC and any required global low level hardware
134 * by calling the HAL_MspInit() callback function to be optionally defined in user file
135 * stm32g4xx_hal_msp.c.
136 *
137 * @note HAL_Init() function is called at the beginning of program after reset and before
138 * the clock configuration.
139 *
140 * @note In the default implementation the System Timer (Systick) is used as source of time base.
141 * The Systick configuration is based on HSI clock, as HSI is the clock
142 * used after a system Reset and the NVIC configuration is set to Priority group 4.
143 * Once done, time base tick starts incrementing: the tick variable counter is incremented
144 * each 1ms in the SysTick_Handler() interrupt handler.
145 *
146 * @retval HAL status
147 */
HAL_Init(void)148 HAL_StatusTypeDef HAL_Init(void)
149 {
150 HAL_StatusTypeDef status = HAL_OK;
151 /* Configure Flash prefetch, Instruction cache, Data cache */
152 /* Default configuration at reset is: */
153 /* - Prefetch disabled */
154 /* - Instruction cache enabled */
155 /* - Data cache enabled */
156 #if (INSTRUCTION_CACHE_ENABLE == 0U)
157 __HAL_FLASH_INSTRUCTION_CACHE_DISABLE();
158 #endif /* INSTRUCTION_CACHE_ENABLE */
159
160 #if (DATA_CACHE_ENABLE == 0U)
161 __HAL_FLASH_DATA_CACHE_DISABLE();
162 #endif /* DATA_CACHE_ENABLE */
163
164 #if (PREFETCH_ENABLE != 0U)
165 __HAL_FLASH_PREFETCH_BUFFER_ENABLE();
166 #endif /* PREFETCH_ENABLE */
167
168 /* Set Interrupt Group Priority */
169 HAL_NVIC_SetPriorityGrouping(NVIC_PRIORITYGROUP_4);
170
171 /* Use SysTick as time base source and configure 1ms tick (default clock after Reset is HSI) */
172 if (HAL_InitTick(TICK_INT_PRIORITY) != HAL_OK)
173 {
174 status = HAL_ERROR;
175 }
176 else
177 {
178 /* Init the low level hardware */
179 HAL_MspInit();
180 }
181
182 /* Return function status */
183 return status;
184
185 }
186
187 /**
188 * @brief This function de-initializes common part of the HAL and stops the source of time base.
189 * @note This function is optional.
190 * @retval HAL status
191 */
HAL_DeInit(void)192 HAL_StatusTypeDef HAL_DeInit(void)
193 {
194 /* Reset of all peripherals */
195 __HAL_RCC_APB1_FORCE_RESET();
196 __HAL_RCC_APB1_RELEASE_RESET();
197
198 __HAL_RCC_APB2_FORCE_RESET();
199 __HAL_RCC_APB2_RELEASE_RESET();
200
201 __HAL_RCC_AHB1_FORCE_RESET();
202 __HAL_RCC_AHB1_RELEASE_RESET();
203
204 __HAL_RCC_AHB2_FORCE_RESET();
205 __HAL_RCC_AHB2_RELEASE_RESET();
206
207 __HAL_RCC_AHB3_FORCE_RESET();
208 __HAL_RCC_AHB3_RELEASE_RESET();
209
210 /* De-Init the low level hardware */
211 HAL_MspDeInit();
212
213 /* Return function status */
214 return HAL_OK;
215 }
216
217 /**
218 * @brief Initialize the MSP.
219 * @retval None
220 */
HAL_MspInit(void)221 __weak void HAL_MspInit(void)
222 {
223 /* NOTE : This function should not be modified, when the callback is needed,
224 the HAL_MspInit could be implemented in the user file
225 */
226 }
227
228 /**
229 * @brief DeInitializes the MSP.
230 * @retval None
231 */
HAL_MspDeInit(void)232 __weak void HAL_MspDeInit(void)
233 {
234 /* NOTE : This function should not be modified, when the callback is needed,
235 the HAL_MspDeInit could be implemented in the user file
236 */
237 }
238
239 /**
240 * @brief This function configures the source of the time base:
241 * The time source is configured to have 1ms time base with a dedicated
242 * Tick interrupt priority.
243 * @note This function is called automatically at the beginning of program after
244 * reset by HAL_Init() or at any time when clock is reconfigured by HAL_RCC_ClockConfig().
245 * @note In the default implementation, SysTick timer is the source of time base.
246 * It is used to generate interrupts at regular time intervals.
247 * Care must be taken if HAL_Delay() is called from a peripheral ISR process,
248 * The SysTick interrupt must have higher priority (numerically lower)
249 * than the peripheral interrupt. Otherwise the caller ISR process will be blocked.
250 * The function is declared as __weak to be overwritten in case of other
251 * implementation in user file.
252 * @param TickPriority: Tick interrupt priority.
253 * @retval HAL status
254 */
HAL_InitTick(uint32_t TickPriority)255 __weak HAL_StatusTypeDef HAL_InitTick(uint32_t TickPriority)
256 {
257 HAL_StatusTypeDef status = HAL_OK;
258
259 if (uwTickFreq != 0U)
260 {
261 /* Configure the SysTick to have interrupt in 1ms time basis*/
262 if (HAL_SYSTICK_Config(SystemCoreClock / (1000U / uwTickFreq)) == 0U)
263 {
264 /* Configure the SysTick IRQ priority */
265 if (TickPriority < (1UL << __NVIC_PRIO_BITS))
266 {
267 HAL_NVIC_SetPriority(SysTick_IRQn, TickPriority, 0U);
268 uwTickPrio = TickPriority;
269 }
270 else
271 {
272 status = HAL_ERROR;
273 }
274 }
275 else
276 {
277 status = HAL_ERROR;
278 }
279 }
280 else
281 {
282 status = HAL_ERROR;
283 }
284
285 /* Return function status */
286 return status;
287 }
288
289 /**
290 * @}
291 */
292
293 /** @defgroup HAL_Exported_Functions_Group2 HAL Control functions
294 * @brief HAL Control functions
295 *
296 @verbatim
297 ===============================================================================
298 ##### HAL Control functions #####
299 ===============================================================================
300 [..] This section provides functions allowing to:
301 (+) Provide a tick value in millisecond
302 (+) Provide a blocking delay in millisecond
303 (+) Suspend the time base source interrupt
304 (+) Resume the time base source interrupt
305 (+) Get the HAL API driver version
306 (+) Get the device identifier
307 (+) Get the device revision identifier
308
309 @endverbatim
310 * @{
311 */
312
313 /**
314 * @brief This function is called to increment a global variable "uwTick"
315 * used as application time base.
316 * @note In the default implementation, this variable is incremented each 1ms
317 * in SysTick ISR.
318 * @note This function is declared as __weak to be overwritten in case of other
319 * implementations in user file.
320 * @retval None
321 */
HAL_IncTick(void)322 __weak void HAL_IncTick(void)
323 {
324 uwTick += uwTickFreq;
325 }
326
327 /**
328 * @brief Provides a tick value in millisecond.
329 * @note This function is declared as __weak to be overwritten in case of other
330 * implementations in user file.
331 * @retval tick value
332 */
HAL_GetTick(void)333 __weak uint32_t HAL_GetTick(void)
334 {
335 return uwTick;
336 }
337
338 /**
339 * @brief This function returns a tick priority.
340 * @retval tick priority
341 */
HAL_GetTickPrio(void)342 uint32_t HAL_GetTickPrio(void)
343 {
344 return uwTickPrio;
345 }
346
347 /**
348 * @brief Set new tick Freq.
349 * @retval status
350 */
HAL_SetTickFreq(uint32_t Freq)351 HAL_StatusTypeDef HAL_SetTickFreq(uint32_t Freq)
352 {
353 HAL_StatusTypeDef status = HAL_OK;
354 uint32_t prevTickFreq;
355
356 assert_param(IS_TICKFREQ(Freq));
357
358 if (uwTickFreq != Freq)
359 {
360 /* Back up uwTickFreq frequency */
361 prevTickFreq = uwTickFreq;
362
363 /* Update uwTickFreq global variable used by HAL_InitTick() */
364 uwTickFreq = Freq;
365
366 /* Apply the new tick Freq */
367 status = HAL_InitTick(uwTickPrio);
368
369 if (status != HAL_OK)
370 {
371 /* Restore previous tick frequency */
372 uwTickFreq = prevTickFreq;
373 }
374 }
375
376 return status;
377 }
378
379 /**
380 * @brief Returns tick frequency.
381 * @retval tick period in Hz
382 */
HAL_GetTickFreq(void)383 uint32_t HAL_GetTickFreq(void)
384 {
385 return uwTickFreq;
386 }
387
388 /**
389 * @brief This function provides minimum delay (in milliseconds) based
390 * on variable incremented.
391 * @note In the default implementation , SysTick timer is the source of time base.
392 * It is used to generate interrupts at regular time intervals where uwTick
393 * is incremented.
394 * @note This function is declared as __weak to be overwritten in case of other
395 * implementations in user file.
396 * @param Delay specifies the delay time length, in milliseconds.
397 * @retval None
398 */
HAL_Delay(uint32_t Delay)399 __weak void HAL_Delay(uint32_t Delay)
400 {
401 uint32_t tickstart = HAL_GetTick();
402 uint32_t wait = Delay;
403
404 /* Add a freq to guarantee minimum wait */
405 if (wait < HAL_MAX_DELAY)
406 {
407 wait += (uint32_t)(uwTickFreq);
408 }
409
410 while ((HAL_GetTick() - tickstart) < wait)
411 {
412 }
413 }
414
415 /**
416 * @brief Suspends Tick increment.
417 * @note In the default implementation , SysTick timer is the source of time base. It is
418 * used to generate interrupts at regular time intervals. Once HAL_SuspendTick()
419 * is called, the SysTick interrupt will be disabled and so Tick increment
420 * is suspended.
421 * @note This function is declared as __weak to be overwritten in case of other
422 * implementations in user file.
423 * @retval None
424 */
HAL_SuspendTick(void)425 __weak void HAL_SuspendTick(void)
426 {
427 /* Disable SysTick Interrupt */
428 CLEAR_BIT(SysTick->CTRL, SysTick_CTRL_TICKINT_Msk);
429 }
430
431 /**
432 * @brief Resume Tick increment.
433 * @note In the default implementation , SysTick timer is the source of time base. It is
434 * used to generate interrupts at regular time intervals. Once HAL_ResumeTick()
435 * is called, the SysTick interrupt will be enabled and so Tick increment
436 * is resumed.
437 * @note This function is declared as __weak to be overwritten in case of other
438 * implementations in user file.
439 * @retval None
440 */
HAL_ResumeTick(void)441 __weak void HAL_ResumeTick(void)
442 {
443 /* Enable SysTick Interrupt */
444 SET_BIT(SysTick->CTRL, SysTick_CTRL_TICKINT_Msk);
445 }
446
447 /**
448 * @brief Returns the HAL revision.
449 * @retval version : 0xXYZR (8bits for each decimal, R for RC)
450 */
HAL_GetHalVersion(void)451 uint32_t HAL_GetHalVersion(void)
452 {
453 return __STM32G4xx_HAL_VERSION;
454 }
455
456 /**
457 * @brief Returns the device revision identifier.
458 * @retval Device revision identifier
459 */
HAL_GetREVID(void)460 uint32_t HAL_GetREVID(void)
461 {
462 return ((DBGMCU->IDCODE & DBGMCU_IDCODE_REV_ID) >> 16U);
463 }
464
465 /**
466 * @brief Returns the device identifier.
467 * @retval Device identifier
468 */
HAL_GetDEVID(void)469 uint32_t HAL_GetDEVID(void)
470 {
471 return (DBGMCU->IDCODE & DBGMCU_IDCODE_DEV_ID);
472 }
473
474 /**
475 * @}
476 */
477
478 /** @defgroup HAL_Exported_Functions_Group3 HAL Debug functions
479 * @brief HAL Debug functions
480 *
481 @verbatim
482 ===============================================================================
483 ##### HAL Debug functions #####
484 ===============================================================================
485 [..] This section provides functions allowing to:
486 (+) Enable/Disable Debug module during SLEEP mode
487 (+) Enable/Disable Debug module during STOP0/STOP1/STOP2 modes
488 (+) Enable/Disable Debug module during STANDBY mode
489
490 @endverbatim
491 * @{
492 */
493
494 /**
495 * @brief Enable the Debug Module during SLEEP mode.
496 * @retval None
497 */
HAL_DBGMCU_EnableDBGSleepMode(void)498 void HAL_DBGMCU_EnableDBGSleepMode(void)
499 {
500 SET_BIT(DBGMCU->CR, DBGMCU_CR_DBG_SLEEP);
501 }
502
503 /**
504 * @brief Disable the Debug Module during SLEEP mode.
505 * @retval None
506 */
HAL_DBGMCU_DisableDBGSleepMode(void)507 void HAL_DBGMCU_DisableDBGSleepMode(void)
508 {
509 CLEAR_BIT(DBGMCU->CR, DBGMCU_CR_DBG_SLEEP);
510 }
511
512 /**
513 * @brief Enable the Debug Module during STOP0/STOP1/STOP2 modes.
514 * @retval None
515 */
HAL_DBGMCU_EnableDBGStopMode(void)516 void HAL_DBGMCU_EnableDBGStopMode(void)
517 {
518 SET_BIT(DBGMCU->CR, DBGMCU_CR_DBG_STOP);
519 }
520
521 /**
522 * @brief Disable the Debug Module during STOP0/STOP1/STOP2 modes.
523 * @retval None
524 */
HAL_DBGMCU_DisableDBGStopMode(void)525 void HAL_DBGMCU_DisableDBGStopMode(void)
526 {
527 CLEAR_BIT(DBGMCU->CR, DBGMCU_CR_DBG_STOP);
528 }
529
530 /**
531 * @brief Enable the Debug Module during STANDBY mode.
532 * @retval None
533 */
HAL_DBGMCU_EnableDBGStandbyMode(void)534 void HAL_DBGMCU_EnableDBGStandbyMode(void)
535 {
536 SET_BIT(DBGMCU->CR, DBGMCU_CR_DBG_STANDBY);
537 }
538
539 /**
540 * @brief Disable the Debug Module during STANDBY mode.
541 * @retval None
542 */
HAL_DBGMCU_DisableDBGStandbyMode(void)543 void HAL_DBGMCU_DisableDBGStandbyMode(void)
544 {
545 CLEAR_BIT(DBGMCU->CR, DBGMCU_CR_DBG_STANDBY);
546 }
547
548 /**
549 * @}
550 */
551
552 /** @defgroup HAL_Exported_Functions_Group4 HAL SYSCFG configuration functions
553 * @brief HAL SYSCFG configuration functions
554 *
555 @verbatim
556 ===============================================================================
557 ##### HAL SYSCFG configuration functions #####
558 ===============================================================================
559 [..] This section provides functions allowing to:
560 (+) Start a hardware CCMSRAM erase operation
561 (+) Enable/Disable the Internal FLASH Bank Swapping
562 (+) Configure the Voltage reference buffer
563 (+) Enable/Disable the Voltage reference buffer
564 (+) Enable/Disable the I/O analog switch voltage booster
565
566 @endverbatim
567 * @{
568 */
569
570 /**
571 * @brief Start a hardware CCMSRAM erase operation.
572 * @note As long as CCMSRAM is not erased the CCMER bit will be set.
573 * This bit is automatically reset at the end of the CCMSRAM erase operation.
574 * @retval None
575 */
HAL_SYSCFG_CCMSRAMErase(void)576 void HAL_SYSCFG_CCMSRAMErase(void)
577 {
578 /* unlock the write protection of the CCMER bit */
579 SYSCFG->SKR = 0xCA;
580 SYSCFG->SKR = 0x53;
581 /* Starts a hardware CCMSRAM erase operation*/
582 SET_BIT(SYSCFG->SCSR, SYSCFG_SCSR_CCMER);
583 }
584
585 /**
586 * @brief Enable the Internal FLASH Bank Swapping.
587 *
588 * @note This function can be used only for STM32G4xx devices.
589 *
590 * @note Flash Bank2 mapped at 0x08000000 (and aliased @0x00000000)
591 * and Flash Bank1 mapped at 0x08040000 (and aliased at 0x00040000)
592 *
593 * @retval None
594 */
HAL_SYSCFG_EnableMemorySwappingBank(void)595 void HAL_SYSCFG_EnableMemorySwappingBank(void)
596 {
597 SET_BIT(SYSCFG->MEMRMP, SYSCFG_MEMRMP_FB_MODE);
598 }
599
600 /**
601 * @brief Disable the Internal FLASH Bank Swapping.
602 *
603 * @note This function can be used only for STM32G4xx devices.
604 *
605 * @note The default state : Flash Bank1 mapped at 0x08000000 (and aliased @0x0000 0000)
606 * and Flash Bank2 mapped at 0x08040000 (and aliased at 0x00040000)
607 *
608 * @retval None
609 */
HAL_SYSCFG_DisableMemorySwappingBank(void)610 void HAL_SYSCFG_DisableMemorySwappingBank(void)
611 {
612 CLEAR_BIT(SYSCFG->MEMRMP, SYSCFG_MEMRMP_FB_MODE);
613 }
614
615 #if defined(VREFBUF)
616 /**
617 * @brief Configure the internal voltage reference buffer voltage scale.
618 * @param VoltageScaling: specifies the output voltage to achieve
619 * This parameter can be one of the following values:
620 * @arg SYSCFG_VREFBUF_VOLTAGE_SCALE0: VREFBUF_OUT around 2.048 V.
621 * This requires VDDA equal to or higher than 2.4 V.
622 * @arg SYSCFG_VREFBUF_VOLTAGE_SCALE1: VREFBUF_OUT around 2.5 V.
623 * This requires VDDA equal to or higher than 2.8 V.
624 * @arg SYSCFG_VREFBUF_VOLTAGE_SCALE2: VREFBUF_OUT around 2.9 V.
625 * This requires VDDA equal to or higher than 3.15 V.
626 * @retval None
627 */
HAL_SYSCFG_VREFBUF_VoltageScalingConfig(uint32_t VoltageScaling)628 void HAL_SYSCFG_VREFBUF_VoltageScalingConfig(uint32_t VoltageScaling)
629 {
630 /* Check the parameters */
631 assert_param(IS_SYSCFG_VREFBUF_VOLTAGE_SCALE(VoltageScaling));
632
633 MODIFY_REG(VREFBUF->CSR, VREFBUF_CSR_VRS, VoltageScaling);
634 }
635
636 /**
637 * @brief Configure the internal voltage reference buffer high impedance mode.
638 * @param Mode: specifies the high impedance mode
639 * This parameter can be one of the following values:
640 * @arg SYSCFG_VREFBUF_HIGH_IMPEDANCE_DISABLE: VREF+ pin is internally connect to VREFINT output.
641 * @arg SYSCFG_VREFBUF_HIGH_IMPEDANCE_ENABLE: VREF+ pin is high impedance.
642 * @retval None
643 */
HAL_SYSCFG_VREFBUF_HighImpedanceConfig(uint32_t Mode)644 void HAL_SYSCFG_VREFBUF_HighImpedanceConfig(uint32_t Mode)
645 {
646 /* Check the parameters */
647 assert_param(IS_SYSCFG_VREFBUF_HIGH_IMPEDANCE(Mode));
648
649 MODIFY_REG(VREFBUF->CSR, VREFBUF_CSR_HIZ, Mode);
650 }
651
652 /**
653 * @brief Tune the Internal Voltage Reference buffer (VREFBUF).
654 * @param TrimmingValue specifies trimming code for VREFBUF calibration
655 * This parameter can be a number between Min_Data = 0x00 and Max_Data = 0x3F
656 * @retval None
657 */
HAL_SYSCFG_VREFBUF_TrimmingConfig(uint32_t TrimmingValue)658 void HAL_SYSCFG_VREFBUF_TrimmingConfig(uint32_t TrimmingValue)
659 {
660 /* Check the parameters */
661 assert_param(IS_SYSCFG_VREFBUF_TRIMMING(TrimmingValue));
662
663 MODIFY_REG(VREFBUF->CCR, VREFBUF_CCR_TRIM, TrimmingValue);
664 }
665
666 /**
667 * @brief Enable the Internal Voltage Reference buffer (VREFBUF).
668 * @retval HAL_OK/HAL_TIMEOUT
669 */
HAL_SYSCFG_EnableVREFBUF(void)670 HAL_StatusTypeDef HAL_SYSCFG_EnableVREFBUF(void)
671 {
672 uint32_t tickstart;
673
674 SET_BIT(VREFBUF->CSR, VREFBUF_CSR_ENVR);
675
676 /* Get Start Tick*/
677 tickstart = HAL_GetTick();
678
679 /* Wait for VRR bit */
680 while (READ_BIT(VREFBUF->CSR, VREFBUF_CSR_VRR) == 0x00U)
681 {
682 if ((HAL_GetTick() - tickstart) > VREFBUF_TIMEOUT_VALUE)
683 {
684 return HAL_TIMEOUT;
685 }
686 }
687
688 return HAL_OK;
689 }
690
691 /**
692 * @brief Disable the Internal Voltage Reference buffer (VREFBUF).
693 *
694 * @retval None
695 */
HAL_SYSCFG_DisableVREFBUF(void)696 void HAL_SYSCFG_DisableVREFBUF(void)
697 {
698 CLEAR_BIT(VREFBUF->CSR, VREFBUF_CSR_ENVR);
699 }
700 #endif /* VREFBUF */
701
702 /**
703 * @brief Enable the I/O analog switch voltage booster
704 *
705 * @retval None
706 */
HAL_SYSCFG_EnableIOSwitchBooster(void)707 void HAL_SYSCFG_EnableIOSwitchBooster(void)
708 {
709 SET_BIT(SYSCFG->CFGR1, SYSCFG_CFGR1_BOOSTEN);
710 }
711
712 /**
713 * @brief Disable the I/O analog switch voltage booster
714 *
715 * @retval None
716 */
HAL_SYSCFG_DisableIOSwitchBooster(void)717 void HAL_SYSCFG_DisableIOSwitchBooster(void)
718 {
719 CLEAR_BIT(SYSCFG->CFGR1, SYSCFG_CFGR1_BOOSTEN);
720 }
721
722 /**
723 * @brief Enable the I/O analog switch voltage by VDD
724 *
725 * @retval None
726 */
HAL_SYSCFG_EnableIOSwitchVDD(void)727 void HAL_SYSCFG_EnableIOSwitchVDD(void)
728 {
729 SET_BIT(SYSCFG->CFGR1, SYSCFG_CFGR1_ANASWVDD);
730 }
731
732 /**
733 * @brief Disable the I/O analog switch voltage by VDD
734 *
735 * @retval None
736 */
HAL_SYSCFG_DisableIOSwitchVDD(void)737 void HAL_SYSCFG_DisableIOSwitchVDD(void)
738 {
739 CLEAR_BIT(SYSCFG->CFGR1, SYSCFG_CFGR1_ANASWVDD);
740 }
741
742
743 /** @brief CCMSRAM page write protection enable
744 * @param Page: This parameter is a long 32bit value and can be a value of @ref SYSCFG_CCMSRAMWRP
745 * @note write protection can only be disabled by a system reset
746 * @retval None
747 */
HAL_SYSCFG_CCMSRAM_WriteProtectionEnable(uint32_t Page)748 void HAL_SYSCFG_CCMSRAM_WriteProtectionEnable(uint32_t Page)
749 {
750 assert_param(IS_SYSCFG_CCMSRAMWRP_PAGE(Page));
751
752 SET_BIT(SYSCFG->SWPR, (uint32_t)(Page));
753 }
754
755
756 /**
757 * @}
758 */
759
760 /**
761 * @}
762 */
763
764 #endif /* HAL_MODULE_ENABLED */
765 /**
766 * @}
767 */
768
769 /**
770 * @}
771 */
772
773
