1 /**
2 ******************************************************************************
3 * @file stm32l5xx_hal.c
4 * @author MCD Application Team
5 * @brief HAL module driver.
6 * This is the common part of the HAL initialization
7 *
8 @verbatim
9 ==============================================================================
10 ##### How to use this driver #####
11 ==============================================================================
12 [..]
13 The common HAL driver contains a set of generic and common APIs that can be
14 used by the PPP peripheral drivers and the user to start using the HAL.
15 [..]
16 The HAL contains two APIs' categories:
17 (+) Common HAL APIs
18 (+) Services HAL APIs
19
20 @endverbatim
21 ******************************************************************************
22 * @attention
23 *
24 * <h2><center>© Copyright (c) 2019 STMicroelectronics.
25 * All rights reserved.</center></h2>
26 *
27 * This software component is licensed by ST under BSD 3-Clause license,
28 * the "License"; You may not use this file except in compliance with the
29 * License. You may obtain a copy of the License at:
30 * opensource.org/licenses/BSD-3-Clause
31 *
32 ******************************************************************************
33 */
34
35 /* Includes ------------------------------------------------------------------*/
36 #include "stm32l5xx_hal.h"
37
38 /** @addtogroup STM32L5xx_HAL_Driver
39 * @{
40 */
41
42 /** @defgroup HAL HAL
43 * @brief HAL module driver
44 * @{
45 */
46
47 #ifdef HAL_MODULE_ENABLED
48
49 /* Private typedef -----------------------------------------------------------*/
50 /* Private define ------------------------------------------------------------*/
51 /**
52 * @brief STM32L5xx HAL Driver version number
53 */
54 #define STM32L5XX_HAL_VERSION_MAIN (0x01U) /*!< [31:24] main version */
55 #define STM32L5XX_HAL_VERSION_SUB1 (0x00U) /*!< [23:16] sub1 version */
56 #define STM32L5XX_HAL_VERSION_SUB2 (0x04U) /*!< [15:8] sub2 version */
57 #define STM32L5XX_HAL_VERSION_RC (0x00U) /*!< [7:0] release candidate */
58 #define STM32L5XX_HAL_VERSION ((STM32L5XX_HAL_VERSION_MAIN << 24U)\
59 |(STM32L5XX_HAL_VERSION_SUB1 << 16U)\
60 |(STM32L5XX_HAL_VERSION_SUB2 << 8U )\
61 |(STM32L5XX_HAL_VERSION_RC))
62
63 #define VREFBUF_TIMEOUT_VALUE 10U /*!< 10 ms (to be confirmed) */
64 #define VREFBUF_SC0_CAL_ADDR ((uint8_t *) (0x0BFA0579UL)) /*!< Address of VREFBUF trimming value for VRS=0,
65 VREF_SC0 in STM32L5 datasheet */
66 #define VREFBUF_SC1_CAL_ADDR ((uint8_t *) (0x0BFA0530UL)) /*!< Address of VREFBUF trimming value for VRS=1,
67 VREF_SC1 in STM32L5 datasheet */
68
69 /* Private macro -------------------------------------------------------------*/
70 /* Private variables ---------------------------------------------------------*/
71 /* Private function prototypes -----------------------------------------------*/
72
73 /* Exported variables --------------------------------------------------------*/
74
75 /** @defgroup HAL_Exported_Variables HAL Exported Variables
76 * @{
77 */
78 __IO uint32_t uwTick;
79 uint32_t uwTickPrio = (1UL << __NVIC_PRIO_BITS); /* Invalid priority */
80 HAL_TickFreqTypeDef uwTickFreq = HAL_TICK_FREQ_DEFAULT; /* 1KHz */
81 /**
82 * @}
83 */
84
85 /* Exported functions --------------------------------------------------------*/
86
87 /** @defgroup HAL_Exported_Functions HAL Exported Functions
88 * @{
89 */
90
91 /** @defgroup HAL_Exported_Functions_Group1 Initialization and de-initialization Functions
92 * @brief Initialization and de-initialization functions
93 *
94 @verbatim
95 ===============================================================================
96 ##### Initialization and de-initialization functions #####
97 ===============================================================================
98 [..] This section provides functions allowing to:
99 (+) Initialize the Flash interface the NVIC allocation and initial time base
100 clock configuration.
101 (+) De-initialize common part of the HAL.
102 (+) Configure the time base source to have 1ms time base with a dedicated
103 Tick interrupt priority.
104 (++) SysTick timer is used by default as source of time base, but user
105 can eventually implement his proper time base source (a general purpose
106 timer for example or other time source), keeping in mind that Time base
107 duration should be kept 1ms since PPP_TIMEOUT_VALUEs are defined and
108 handled in milliseconds basis.
109 (++) Time base configuration function (HAL_InitTick ()) is called automatically
110 at the beginning of the program after reset by HAL_Init() or at any time
111 when clock is configured, by HAL_RCC_ClockConfig().
112 (++) Source of time base is configured to generate interrupts at regular
113 time intervals. Care must be taken if HAL_Delay() is called from a
114 peripheral ISR process, the Tick interrupt line must have higher priority
115 (numerically lower) than the peripheral interrupt. Otherwise the caller
116 ISR process will be blocked.
117 (++) functions affecting time base configurations are declared as __weak
118 to make override possible in case of other implementations in user file.
119 @endverbatim
120 * @{
121 */
122
123 /**
124 * @brief Configure the time base source, NVIC and any required global low level hardware
125 * by calling the HAL_MspInit() callback function to be optionally defined in user file
126 * stm32l5xx_hal_msp.c.
127 *
128 * @note HAL_Init() function is called at the beginning of program after reset and before
129 * the clock configuration.
130 *
131 * @note In the default implementation the System Timer (Systick) is used as source of time base.
132 * The Systick configuration is based on MSI clock, as MSI is the clock
133 * used after a system Reset and the NVIC configuration is set to Priority group 4.
134 * Once done, time base tick starts incrementing: the tick variable counter is incremented
135 * each 1ms in the SysTick_Handler() interrupt handler.
136 *
137 * @retval HAL status
138 */
HAL_Init(void)139 HAL_StatusTypeDef HAL_Init(void)
140 {
141 HAL_StatusTypeDef status = HAL_OK;
142
143 /* Set Interrupt Group Priority */
144 HAL_NVIC_SetPriorityGrouping(NVIC_PRIORITYGROUP_3);
145
146 /* Insure time base clock coherency */
147 SystemCoreClockUpdate();
148
149 /* Use SysTick as time base source and configure 1ms tick (default clock after Reset is MSI) */
150 if (HAL_InitTick(TICK_INT_PRIORITY) != HAL_OK)
151 {
152 status = HAL_ERROR;
153 }
154 else
155 {
156 /* Init the low level hardware */
157 HAL_MspInit();
158 }
159
160 /* Return function status */
161 return status;
162 }
163
164 /**
165 * @brief DeInitialize common part of the HAL and stop the source of time base.
166 * @note This function is optional.
167 * @retval HAL status
168 */
HAL_DeInit(void)169 HAL_StatusTypeDef HAL_DeInit(void)
170 {
171 /* Reset of all peripherals */
172 __HAL_RCC_APB1_FORCE_RESET();
173 __HAL_RCC_APB1_RELEASE_RESET();
174
175 __HAL_RCC_APB2_FORCE_RESET();
176 __HAL_RCC_APB2_RELEASE_RESET();
177
178 __HAL_RCC_AHB1_FORCE_RESET();
179 __HAL_RCC_AHB1_RELEASE_RESET();
180
181 __HAL_RCC_AHB2_FORCE_RESET();
182 __HAL_RCC_AHB2_RELEASE_RESET();
183
184 __HAL_RCC_AHB3_FORCE_RESET();
185 __HAL_RCC_AHB3_RELEASE_RESET();
186
187 /* De-Init the low level hardware */
188 HAL_MspDeInit();
189
190 /* Return function status */
191 return HAL_OK;
192 }
193
194 /**
195 * @brief Initialize the MSP.
196 * @retval None
197 */
HAL_MspInit(void)198 __weak void HAL_MspInit(void)
199 {
200 /* NOTE : This function should not be modified, when the callback is needed,
201 the HAL_MspInit could be implemented in the user file
202 */
203 }
204
205 /**
206 * @brief DeInitialize the MSP.
207 * @retval None
208 */
HAL_MspDeInit(void)209 __weak void HAL_MspDeInit(void)
210 {
211 /* NOTE : This function should not be modified, when the callback is needed,
212 the HAL_MspDeInit could be implemented in the user file
213 */
214 }
215
216 /**
217 * @brief This function configures the source of the time base:
218 * The time source is configured to have 1ms time base with a dedicated
219 * Tick interrupt priority.
220 * @note This function is called automatically at the beginning of program after
221 * reset by HAL_Init() or at any time when clock is reconfigured by HAL_RCC_ClockConfig().
222 * @note In the default implementation, SysTick timer is the source of time base.
223 * It is used to generate interrupts at regular time intervals.
224 * Care must be taken if HAL_Delay() is called from a peripheral ISR process,
225 * The SysTick interrupt must have higher priority (numerically lower)
226 * than the peripheral interrupt. Otherwise the caller ISR process will be blocked.
227 * The function is declared as __weak to be overwritten in case of other
228 * implementation in user file.
229 * @param TickPriority Tick interrupt priority.
230 * @retval HAL status
231 */
HAL_InitTick(uint32_t TickPriority)232 __weak HAL_StatusTypeDef HAL_InitTick(uint32_t TickPriority)
233 {
234 HAL_StatusTypeDef status = HAL_OK;
235
236 /* Check uwTickFreq for MisraC 2012 (even if uwTickFreq is a enum type that doesn't take the value zero)*/
237 if ((uint32_t)uwTickFreq != 0U)
238 {
239 /*Configure the SysTick to have interrupt in 1ms time basis*/
240 if (HAL_SYSTICK_Config(SystemCoreClock / (1000U / (uint32_t)uwTickFreq)) == 0U)
241 {
242 /* Configure the SysTick IRQ priority */
243 if (TickPriority < (1UL << __NVIC_PRIO_BITS))
244 {
245 HAL_NVIC_SetPriority(SysTick_IRQn, TickPriority, 0U);
246 uwTickPrio = TickPriority;
247 }
248 else
249 {
250 status = HAL_ERROR;
251 }
252 }
253 else
254 {
255 status = HAL_ERROR;
256 }
257 }
258 else
259 {
260 status = HAL_ERROR;
261 }
262
263 /* Return function status */
264 return status;
265 }
266
267 /**
268 * @}
269 */
270
271 /** @defgroup HAL_Exported_Functions_Group2 HAL Control functions
272 * @brief HAL Control functions
273 *
274 @verbatim
275 ===============================================================================
276 ##### HAL Control functions #####
277 ===============================================================================
278 [..] This section provides functions allowing to:
279 (+) Provide a tick value in millisecond
280 (+) Provide a blocking delay in millisecond
281 (+) Suspend the time base source interrupt
282 (+) Resume the time base source interrupt
283 (+) Get the HAL API driver version
284 (+) Get the device identifier
285 (+) Get the device revision identifier
286
287 @endverbatim
288 * @{
289 */
290
291 /**
292 * @brief This function is called to increment a global variable "uwTick"
293 * used as application time base.
294 * @note In the default implementation, this variable is incremented each 1ms
295 * in SysTick ISR.
296 * @note This function is declared as __weak to be overwritten in case of other
297 * implementations in user file.
298 * @retval None
299 */
HAL_IncTick(void)300 __weak void HAL_IncTick(void)
301 {
302 uwTick += (uint32_t)uwTickFreq;
303 }
304
305 /**
306 * @brief Provide a tick value in millisecond.
307 * @note This function is declared as __weak to be overwritten in case of other
308 * implementations in user file.
309 * @retval tick value
310 */
HAL_GetTick(void)311 __weak uint32_t HAL_GetTick(void)
312 {
313 return uwTick;
314 }
315
316 /**
317 * @brief This function returns a tick priority.
318 * @retval tick priority
319 */
HAL_GetTickPrio(void)320 uint32_t HAL_GetTickPrio(void)
321 {
322 return uwTickPrio;
323 }
324
325 /**
326 * @brief Set new tick Freq.
327 * @param Freq tick frequency
328 * @retval HAL status
329 */
HAL_SetTickFreq(HAL_TickFreqTypeDef Freq)330 HAL_StatusTypeDef HAL_SetTickFreq(HAL_TickFreqTypeDef Freq)
331 {
332 HAL_StatusTypeDef status = HAL_OK;
333 HAL_TickFreqTypeDef prevTickFreq;
334
335 if (uwTickFreq != Freq)
336 {
337 /* Back up uwTickFreq frequency */
338 prevTickFreq = uwTickFreq;
339
340 /* Update uwTickFreq global variable used by HAL_InitTick() */
341 uwTickFreq = Freq;
342
343 /* Apply the new tick Freq */
344 status = HAL_InitTick(uwTickPrio);
345 if (status != HAL_OK)
346 {
347 /* Restore previous tick frequency */
348 uwTickFreq = prevTickFreq;
349 }
350 }
351
352 return status;
353 }
354
355 /**
356 * @brief Return tick frequency.
357 * @retval tick period in Hz
358 */
HAL_GetTickFreq(void)359 HAL_TickFreqTypeDef HAL_GetTickFreq(void)
360 {
361 return uwTickFreq;
362 }
363
364 /**
365 * @brief This function provides minimum delay (in milliseconds) based
366 * on variable incremented.
367 * @note In the default implementation , SysTick timer is the source of time base.
368 * It is used to generate interrupts at regular time intervals where uwTick
369 * is incremented.
370 * @note This function is declared as __weak to be overwritten in case of other
371 * implementations in user file.
372 * @param Delay specifies the delay time length, in milliseconds.
373 * @retval None
374 */
HAL_Delay(uint32_t Delay)375 __weak void HAL_Delay(uint32_t Delay)
376 {
377 uint32_t tickstart = HAL_GetTick();
378 uint32_t wait = Delay;
379
380 /* Add a period to guaranty minimum wait */
381 if (wait < HAL_MAX_DELAY)
382 {
383 wait += (uint32_t)uwTickFreq;
384 }
385
386 while ((HAL_GetTick() - tickstart) < wait)
387 {
388 }
389 }
390
391 /**
392 * @brief Suspend Tick increment.
393 * @note In the default implementation , SysTick timer is the source of time base. It is
394 * used to generate interrupts at regular time intervals. Once HAL_SuspendTick()
395 * is called, the SysTick interrupt will be disabled and so Tick increment
396 * is suspended.
397 * @note This function is declared as __weak to be overwritten in case of other
398 * implementations in user file.
399 * @retval None
400 */
HAL_SuspendTick(void)401 __weak void HAL_SuspendTick(void)
402 {
403 /* Disable SysTick Interrupt */
404 SysTick->CTRL &= ~SysTick_CTRL_TICKINT_Msk;
405 }
406
407 /**
408 * @brief Resume Tick increment.
409 * @note In the default implementation , SysTick timer is the source of time base. It is
410 * used to generate interrupts at regular time intervals. Once HAL_ResumeTick()
411 * is called, the SysTick interrupt will be enabled and so Tick increment
412 * is resumed.
413 * @note This function is declared as __weak to be overwritten in case of other
414 * implementations in user file.
415 * @retval None
416 */
HAL_ResumeTick(void)417 __weak void HAL_ResumeTick(void)
418 {
419 /* Enable SysTick Interrupt */
420 SysTick->CTRL |= SysTick_CTRL_TICKINT_Msk;
421 }
422
423 /**
424 * @brief Return the HAL revision.
425 * @retval version : 0xXYZR (8bits for each decimal, R for RC)
426 */
HAL_GetHalVersion(void)427 uint32_t HAL_GetHalVersion(void)
428 {
429 return STM32L5XX_HAL_VERSION;
430 }
431
432 /**
433 * @brief Return the device revision identifier.
434 * @retval Device revision identifier
435 */
HAL_GetREVID(void)436 uint32_t HAL_GetREVID(void)
437 {
438 return ((DBGMCU->IDCODE & DBGMCU_IDCODE_REV_ID) >> DBGMCU_IDCODE_REV_ID_Pos);
439 }
440
441 /**
442 * @brief Return the device identifier.
443 * @retval Device identifier
444 */
HAL_GetDEVID(void)445 uint32_t HAL_GetDEVID(void)
446 {
447 return (DBGMCU->IDCODE & DBGMCU_IDCODE_DEV_ID);
448 }
449
450 /**
451 * @brief Return the first word of the unique device identifier (UID based on 96 bits)
452 * @retval Device identifier
453 */
HAL_GetUIDw0(void)454 uint32_t HAL_GetUIDw0(void)
455 {
456 return (READ_REG(*((uint32_t *)UID_BASE)));
457 }
458
459 /**
460 * @brief Return the second word of the unique device identifier (UID based on 96 bits)
461 * @retval Device identifier
462 */
HAL_GetUIDw1(void)463 uint32_t HAL_GetUIDw1(void)
464 {
465 return (READ_REG(*((uint32_t *)(UID_BASE + 4U))));
466 }
467
468 /**
469 * @brief Return the third word of the unique device identifier (UID based on 96 bits)
470 * @retval Device identifier
471 */
HAL_GetUIDw2(void)472 uint32_t HAL_GetUIDw2(void)
473 {
474 return (READ_REG(*((uint32_t *)(UID_BASE + 8U))));
475 }
476
477 /**
478 * @}
479 */
480
481 /** @defgroup HAL_Exported_Functions_Group3 HAL Debug functions
482 * @brief HAL Debug functions
483 *
484 @verbatim
485 ===============================================================================
486 ##### HAL Debug functions #####
487 ===============================================================================
488 [..] This section provides functions allowing to:
489 (+) Enable/Disable Debug module during STOP0/STOP1/STOP2 modes
490 (+) Enable/Disable Debug module during STANDBY mode
491
492 @endverbatim
493 * @{
494 */
495
496 /**
497 * @brief Enable the Debug Module during STOP0/STOP1/STOP2 modes.
498 * @retval None
499 */
HAL_DBGMCU_EnableDBGStopMode(void)500 void HAL_DBGMCU_EnableDBGStopMode(void)
501 {
502 SET_BIT(DBGMCU->CR, DBGMCU_CR_DBG_STOP);
503 }
504
505 /**
506 * @brief Disable the Debug Module during STOP0/STOP1/STOP2 modes.
507 * @retval None
508 */
HAL_DBGMCU_DisableDBGStopMode(void)509 void HAL_DBGMCU_DisableDBGStopMode(void)
510 {
511 CLEAR_BIT(DBGMCU->CR, DBGMCU_CR_DBG_STOP);
512 }
513
514 /**
515 * @brief Enable the Debug Module during STANDBY mode.
516 * @retval None
517 */
HAL_DBGMCU_EnableDBGStandbyMode(void)518 void HAL_DBGMCU_EnableDBGStandbyMode(void)
519 {
520 SET_BIT(DBGMCU->CR, DBGMCU_CR_DBG_STANDBY);
521 }
522
523 /**
524 * @brief Disable the Debug Module during STANDBY mode.
525 * @retval None
526 */
HAL_DBGMCU_DisableDBGStandbyMode(void)527 void HAL_DBGMCU_DisableDBGStandbyMode(void)
528 {
529 CLEAR_BIT(DBGMCU->CR, DBGMCU_CR_DBG_STANDBY);
530 }
531
532 /**
533 * @}
534 */
535
536 /** @defgroup HAL_Exported_Functions_Group4 HAL SYSCFG configuration functions
537 * @brief HAL SYSCFG configuration functions
538 *
539 @verbatim
540 ===============================================================================
541 ##### HAL SYSCFG configuration functions #####
542 ===============================================================================
543 [..] This section provides functions allowing to:
544 (+) Start a hardware SRAM2 erase operation
545 (+) Configure the Voltage reference buffer
546 (+) Enable/Disable the Voltage reference buffer
547 (+) Enable/Disable the I/O analog switch voltage booster
548 (+) Enable/Disable the I/O analog switch supplied by VDD
549
550 @endverbatim
551 * @{
552 */
553
554 /**
555 * @brief Start a hardware SRAM2 erase operation.
556 * @note As long as SRAM2 is not erased the SRAM2ER bit will be set.
557 * This bit is automatically reset at the end of the SRAM2 erase operation.
558 * @retval None
559 */
HAL_SYSCFG_SRAM2Erase(void)560 void HAL_SYSCFG_SRAM2Erase(void)
561 {
562 /* unlock the write protection of the SRAM2ER bit */
563 SYSCFG->SKR = 0xCA;
564 SYSCFG->SKR = 0x53;
565
566 /* Starts a hardware SRAM2 erase operation*/
567 SET_BIT(SYSCFG->SCSR, SYSCFG_SCSR_SRAM2ER);
568 }
569
570 /**
571 * @brief Configure the internal voltage reference buffer voltage scale.
572 * @param VoltageScaling specifies the output voltage to achieve
573 * This parameter can be one of the following values:
574 * @arg SYSCFG_VREFBUF_VOLTAGE_SCALE0: VREF_OUT1 around 2.048 V.
575 * This requires VDDA equal to or higher than 2.4 V.
576 * @arg SYSCFG_VREFBUF_VOLTAGE_SCALE1: VREF_OUT1 around 2.5 V.
577 * This requires VDDA equal to or higher than 2.8 V.
578 * @note Retrieve the TrimmingValue from factory located at
579 * VREFBUF_SC0_CAL_ADDR or VREFBUF_SC1_CAL_ADDR addresses.
580 * @retval None
581 */
HAL_SYSCFG_VREFBUF_VoltageScalingConfig(uint32_t VoltageScaling)582 void HAL_SYSCFG_VREFBUF_VoltageScalingConfig(uint32_t VoltageScaling)
583 {
584 uint32_t TrimmingValue;
585
586 /* Check the parameters */
587 assert_param(IS_SYSCFG_VREFBUF_VOLTAGE_SCALE(VoltageScaling));
588
589 MODIFY_REG(VREFBUF->CSR, VREFBUF_CSR_VRS, VoltageScaling);
590
591 /* Restrieve Calibration data and store them into trimming field */
592 if (VoltageScaling == SYSCFG_VREFBUF_VOLTAGE_SCALE0)
593 {
594 TrimmingValue = ((uint32_t) *VREFBUF_SC0_CAL_ADDR) & 0x3FU;
595 }
596 else
597 {
598 TrimmingValue = ((uint32_t) *VREFBUF_SC1_CAL_ADDR) & 0x3FU;
599 }
600 assert_param(IS_SYSCFG_VREFBUF_TRIMMING(TrimmingValue));
601
602 HAL_SYSCFG_VREFBUF_TrimmingConfig(TrimmingValue);
603 }
604
605 /**
606 * @brief Configure the internal voltage reference buffer high impedance mode.
607 * @param Mode specifies the high impedance mode
608 * This parameter can be one of the following values:
609 * @arg SYSCFG_VREFBUF_HIGH_IMPEDANCE_DISABLE: VREF+ pin is internally connect to VREFINT output.
610 * @arg SYSCFG_VREFBUF_HIGH_IMPEDANCE_ENABLE: VREF+ pin is high impedance.
611 * @retval None
612 */
HAL_SYSCFG_VREFBUF_HighImpedanceConfig(uint32_t Mode)613 void HAL_SYSCFG_VREFBUF_HighImpedanceConfig(uint32_t Mode)
614 {
615 /* Check the parameters */
616 assert_param(IS_SYSCFG_VREFBUF_HIGH_IMPEDANCE(Mode));
617
618 MODIFY_REG(VREFBUF->CSR, VREFBUF_CSR_HIZ, Mode);
619 }
620
621 /**
622 * @brief Tune the Internal Voltage Reference buffer (VREFBUF).
623 * @retval None
624 */
HAL_SYSCFG_VREFBUF_TrimmingConfig(uint32_t TrimmingValue)625 void HAL_SYSCFG_VREFBUF_TrimmingConfig(uint32_t TrimmingValue)
626 {
627 /* Check the parameters */
628 assert_param(IS_SYSCFG_VREFBUF_TRIMMING(TrimmingValue));
629
630 MODIFY_REG(VREFBUF->CCR, VREFBUF_CCR_TRIM, TrimmingValue);
631 }
632
633 /**
634 * @brief Enable the Internal Voltage Reference buffer (VREFBUF).
635 * @retval HAL_OK/HAL_TIMEOUT
636 */
HAL_SYSCFG_EnableVREFBUF(void)637 HAL_StatusTypeDef HAL_SYSCFG_EnableVREFBUF(void)
638 {
639 uint32_t tickstart;
640
641 SET_BIT(VREFBUF->CSR, VREFBUF_CSR_ENVR);
642
643 /* Get Start Tick*/
644 tickstart = HAL_GetTick();
645
646 /* Wait for VRR bit */
647 while (READ_BIT(VREFBUF->CSR, VREFBUF_CSR_VRR) == 0U)
648 {
649 if ((HAL_GetTick() - tickstart) > VREFBUF_TIMEOUT_VALUE)
650 {
651 return HAL_TIMEOUT;
652 }
653 }
654
655 return HAL_OK;
656 }
657
658 /**
659 * @brief Disable the Internal Voltage Reference buffer (VREFBUF).
660 *
661 * @retval None
662 */
HAL_SYSCFG_DisableVREFBUF(void)663 void HAL_SYSCFG_DisableVREFBUF(void)
664 {
665 CLEAR_BIT(VREFBUF->CSR, VREFBUF_CSR_ENVR);
666 }
667
668 /**
669 * @brief Enable the I/O analog switch voltage booster
670 * @note Insure low VDDA voltage operation with I/O analog switch control
671 * @retval None
672 */
HAL_SYSCFG_EnableIOAnalogBooster(void)673 void HAL_SYSCFG_EnableIOAnalogBooster(void)
674 {
675 MODIFY_REG(SYSCFG->CFGR1, (SYSCFG_CFGR1_BOOSTEN | SYSCFG_CFGR1_ANASWVDD), SYSCFG_CFGR1_BOOSTEN);
676 }
677
678 /**
679 * @brief Disable the I/O analog switch voltage booster
680 *
681 * @retval None
682 */
HAL_SYSCFG_DisableIOAnalogBooster(void)683 void HAL_SYSCFG_DisableIOAnalogBooster(void)
684 {
685 CLEAR_BIT(SYSCFG->CFGR1, SYSCFG_CFGR1_BOOSTEN);
686 }
687
688 /**
689 * @brief Enable the I/O analog switch supplied by VDD
690 * @note To be used when I/O analog switch voltage booster is not enabled
691 * @retval None
692 */
HAL_SYSCFG_EnableIOAnalogSwitchVdd(void)693 void HAL_SYSCFG_EnableIOAnalogSwitchVdd(void)
694 {
695 MODIFY_REG(SYSCFG->CFGR1, (SYSCFG_CFGR1_BOOSTEN | SYSCFG_CFGR1_ANASWVDD), SYSCFG_CFGR1_ANASWVDD);
696 }
697
698 /**
699 * @brief Disable the I/O analog switch supplied by VDD
700 *
701 * @retval None
702 */
HAL_SYSCFG_DisableIOAnalogSwitchVdd(void)703 void HAL_SYSCFG_DisableIOAnalogSwitchVdd(void)
704 {
705 CLEAR_BIT(SYSCFG->CFGR1, SYSCFG_CFGR1_ANASWVDD);
706 }
707
708 /**
709 * @}
710 */
711
712 /** @defgroup HAL_Exported_Functions_Group5 HAL SYSCFG lock management functions
713 * @brief SYSCFG lock management functions.
714 *
715 @verbatim
716 ===============================================================================
717 ##### SYSCFG lock functions #####
718 ===============================================================================
719
720 @endverbatim
721 * @{
722 */
723
724 /**
725 * @brief Lock the SYSCFG item(s).
726 * @note Setting lock(s) depends on privilege mode in secure/non-secure code
727 * Lock(s) cleared only at system reset
728 * @param Item Item(s) to set lock on.
729 * This parameter can be a combination of @ref SYSCFG_Lock_items
730 * @retval None
731 */
HAL_SYSCFG_Lock(uint32_t Item)732 void HAL_SYSCFG_Lock(uint32_t Item)
733 {
734 /* Check the parameters */
735 assert_param(IS_SYSCFG_LOCK_ITEMS(Item));
736
737 /* Privilege secure/non-secure locks */
738 SYSCFG->CNSLCKR = (0xFFFFU & Item); /* non-secure lock item in 16 lowest bits */
739
740 #if defined (__ARM_FEATURE_CMSE) && (__ARM_FEATURE_CMSE == 3U)
741 /* Privilege secure only locks */
742 SYSCFG->CSLCKR = ((0xFFFF0000U & Item) >> 16U); /* Secure-only lock item in 16 highest bits */
743 #endif /* __ARM_FEATURE_CMSE */
744 }
745
746 /**
747 * @brief Get the lock state of SYSCFG item.
748 * @note Getting lock(s) depends on privilege mode in secure/non-secure code
749 * @param pItem pointer to return locked items
750 * the return value can be a combination of @ref SYSCFG_Lock_items
751 * @retval HAL status
752 */
HAL_SYSCFG_GetLock(uint32_t * pItem)753 HAL_StatusTypeDef HAL_SYSCFG_GetLock(uint32_t *pItem)
754 {
755 uint32_t tmp_lock;
756
757 /* Check null pointer */
758 if (pItem == NULL)
759 {
760 return HAL_ERROR;
761 }
762
763 /* Get the non-secure lock state */
764 tmp_lock = SYSCFG->CNSLCKR;
765
766 /* Get the secure lock state in secure code */
767 #if defined (__ARM_FEATURE_CMSE) && (__ARM_FEATURE_CMSE == 3U)
768 tmp_lock |= (SYSCFG->CSLCKR << 16U);
769 #endif /* __ARM_FEATURE_CMSE */
770
771 /* Return overall lock status */
772 *pItem = tmp_lock;
773
774 return HAL_OK;
775 }
776
777 /**
778 * @}
779 */
780
781 #if defined (__ARM_FEATURE_CMSE) && (__ARM_FEATURE_CMSE == 3U)
782
783
784 /** @defgroup HAL_Exported_Functions_Group6 HAL SYSCFG attributes management functions
785 * @brief SYSCFG attributes management functions.
786 *
787 @verbatim
788 ===============================================================================
789 ##### SYSCFG attributes functions #####
790 ===============================================================================
791
792 @endverbatim
793 * @{
794 */
795
796 /**
797 * @brief Configure the SYSCFG item attribute(s).
798 * @note Available attributes are to secure SYSCFG items, so this function is
799 * only available in secure
800 * @param Item Item(s) to set attributes on.
801 * This parameter can be a one or a combination of @ref SYSCFG_Attributes_items
802 * @param Attributes specifies the secure/non-secure attributes.
803 * @retval None
804 */
HAL_SYSCFG_ConfigAttributes(uint32_t Item,uint32_t Attributes)805 void HAL_SYSCFG_ConfigAttributes(uint32_t Item, uint32_t Attributes)
806 {
807 uint32_t tmp;
808
809 /* Check the parameters */
810 assert_param(IS_SYSCFG_ITEMS_ATTRIBUTES(Item));
811 assert_param(IS_SYSCFG_ATTRIBUTES(Attributes));
812
813 tmp = SYSCFG_S->SECCFGR;
814
815 /* Set or reset Item */
816 if ((Attributes & SYSCFG_SEC) != 0x00U)
817 {
818 tmp |= Item;
819 }
820 else
821 {
822 tmp &= ~Item;
823 }
824
825 /* Set secure attributes */
826 SYSCFG_S->SECCFGR = tmp;
827 }
828
829 /**
830 * @brief Get the attribute of a SYSCFG item.
831 * @note Available attributes are to secure SYSCFG items, so this function is
832 * only available in secure
833 * @param Item Single item to get secure/non-secure attribute from.
834 * @param pAttributes pointer to return the attribute.
835 * @retval HAL status
836 */
HAL_SYSCFG_GetConfigAttributes(uint32_t Item,uint32_t * pAttributes)837 HAL_StatusTypeDef HAL_SYSCFG_GetConfigAttributes(uint32_t Item, uint32_t *pAttributes)
838 {
839 /* Check null pointer */
840 if (pAttributes == NULL)
841 {
842 return HAL_ERROR;
843 }
844
845 /* Check the parameters */
846 assert_param(IS_SYSCFG_ITEMS_ATTRIBUTES(Item));
847
848 /* Get the secure attribute state */
849 if ((SYSCFG_S->SECCFGR & Item) != 0U)
850 {
851 *pAttributes = SYSCFG_SEC;
852 }
853 else
854 {
855 *pAttributes = SYSCFG_NSEC;
856 }
857
858 return HAL_OK;
859 }
860
861 /**
862 * @}
863 */
864
865 #endif /* __ARM_FEATURE_CMSE */
866
867 /**
868 * @}
869 */
870
871 #endif /* HAL_MODULE_ENABLED */
872 /**
873 * @}
874 */
875
876 /**
877 * @}
878 */
879
880 /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
881
