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 ******************************************************************************
9 * @attention
10 *
11 * Copyright (c) 2019 STMicroelectronics.
12 * All rights reserved.
13 *
14 * This software is licensed under terms that can be found in the LICENSE file
15 * in the root directory of this software component.
16 * If no LICENSE file comes with this software, it is provided AS-IS.
17 *
18 ******************************************************************************
19 @verbatim
20 ==============================================================================
21 ##### How to use this driver #####
22 ==============================================================================
23 [..]
24 The common HAL driver contains a set of generic and common APIs that can be
25 used by the PPP peripheral drivers and the user to start using the HAL.
26 [..]
27 The HAL contains two APIs' categories:
28 (+) Common HAL APIs
29 (+) Services HAL APIs
30
31 @endverbatim
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 (0x06U) /*!< [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 frequency.
358 * Value of @ref HAL_TickFreqTypeDef.
359 */
HAL_GetTickFreq(void)360 HAL_TickFreqTypeDef HAL_GetTickFreq(void)
361 {
362 return uwTickFreq;
363 }
364
365 /**
366 * @brief This function provides minimum delay (in milliseconds) based
367 * on variable incremented.
368 * @note In the default implementation , SysTick timer is the source of time base.
369 * It is used to generate interrupts at regular time intervals where uwTick
370 * is incremented.
371 * @note This function is declared as __weak to be overwritten in case of other
372 * implementations in user file.
373 * @param Delay specifies the delay time length, in milliseconds.
374 * @retval None
375 */
HAL_Delay(uint32_t Delay)376 __weak void HAL_Delay(uint32_t Delay)
377 {
378 uint32_t tickstart = HAL_GetTick();
379 uint32_t wait = Delay;
380
381 /* Add a period to guaranty minimum wait */
382 if (wait < HAL_MAX_DELAY)
383 {
384 wait += (uint32_t)uwTickFreq;
385 }
386
387 while ((HAL_GetTick() - tickstart) < wait)
388 {
389 }
390 }
391
392 /**
393 * @brief Suspend Tick increment.
394 * @note In the default implementation , SysTick timer is the source of time base. It is
395 * used to generate interrupts at regular time intervals. Once HAL_SuspendTick()
396 * is called, the SysTick interrupt will be disabled and so Tick increment
397 * is suspended.
398 * @note This function is declared as __weak to be overwritten in case of other
399 * implementations in user file.
400 * @retval None
401 */
HAL_SuspendTick(void)402 __weak void HAL_SuspendTick(void)
403 {
404 /* Disable SysTick Interrupt */
405 SysTick->CTRL &= ~SysTick_CTRL_TICKINT_Msk;
406 }
407
408 /**
409 * @brief Resume Tick increment.
410 * @note In the default implementation , SysTick timer is the source of time base. It is
411 * used to generate interrupts at regular time intervals. Once HAL_ResumeTick()
412 * is called, the SysTick interrupt will be enabled and so Tick increment
413 * is resumed.
414 * @note This function is declared as __weak to be overwritten in case of other
415 * implementations in user file.
416 * @retval None
417 */
HAL_ResumeTick(void)418 __weak void HAL_ResumeTick(void)
419 {
420 /* Enable SysTick Interrupt */
421 SysTick->CTRL |= SysTick_CTRL_TICKINT_Msk;
422 }
423
424 /**
425 * @brief Return the HAL revision.
426 * @retval version : 0xXYZR (8bits for each decimal, R for RC)
427 */
HAL_GetHalVersion(void)428 uint32_t HAL_GetHalVersion(void)
429 {
430 return STM32L5XX_HAL_VERSION;
431 }
432
433 /**
434 * @brief Return the device revision identifier.
435 * @retval Device revision identifier
436 */
HAL_GetREVID(void)437 uint32_t HAL_GetREVID(void)
438 {
439 return ((DBGMCU->IDCODE & DBGMCU_IDCODE_REV_ID) >> DBGMCU_IDCODE_REV_ID_Pos);
440 }
441
442 /**
443 * @brief Return the device identifier.
444 * @retval Device identifier
445 */
HAL_GetDEVID(void)446 uint32_t HAL_GetDEVID(void)
447 {
448 return (DBGMCU->IDCODE & DBGMCU_IDCODE_DEV_ID);
449 }
450
451 /**
452 * @brief Return the first word of the unique device identifier (UID based on 96 bits)
453 * @retval Device identifier
454 */
HAL_GetUIDw0(void)455 uint32_t HAL_GetUIDw0(void)
456 {
457 return (READ_REG(*((uint32_t *)UID_BASE)));
458 }
459
460 /**
461 * @brief Return the second word of the unique device identifier (UID based on 96 bits)
462 * @retval Device identifier
463 */
HAL_GetUIDw1(void)464 uint32_t HAL_GetUIDw1(void)
465 {
466 return (READ_REG(*((uint32_t *)(UID_BASE + 4U))));
467 }
468
469 /**
470 * @brief Return the third word of the unique device identifier (UID based on 96 bits)
471 * @retval Device identifier
472 */
HAL_GetUIDw2(void)473 uint32_t HAL_GetUIDw2(void)
474 {
475 return (READ_REG(*((uint32_t *)(UID_BASE + 8U))));
476 }
477
478 /**
479 * @}
480 */
481
482 /** @defgroup HAL_Exported_Functions_Group3 HAL Debug functions
483 * @brief HAL Debug functions
484 *
485 @verbatim
486 ===============================================================================
487 ##### HAL Debug functions #####
488 ===============================================================================
489 [..] This section provides functions allowing to:
490 (+) Enable/Disable Debug module during STOP0/STOP1/STOP2 modes
491 (+) Enable/Disable Debug module during STANDBY mode
492
493 @endverbatim
494 * @{
495 */
496
497 /**
498 * @brief Enable the Debug Module during STOP0/STOP1/STOP2 modes.
499 * @retval None
500 */
HAL_DBGMCU_EnableDBGStopMode(void)501 void HAL_DBGMCU_EnableDBGStopMode(void)
502 {
503 SET_BIT(DBGMCU->CR, DBGMCU_CR_DBG_STOP);
504 }
505
506 /**
507 * @brief Disable the Debug Module during STOP0/STOP1/STOP2 modes.
508 * @retval None
509 */
HAL_DBGMCU_DisableDBGStopMode(void)510 void HAL_DBGMCU_DisableDBGStopMode(void)
511 {
512 CLEAR_BIT(DBGMCU->CR, DBGMCU_CR_DBG_STOP);
513 }
514
515 /**
516 * @brief Enable the Debug Module during STANDBY mode.
517 * @retval None
518 */
HAL_DBGMCU_EnableDBGStandbyMode(void)519 void HAL_DBGMCU_EnableDBGStandbyMode(void)
520 {
521 SET_BIT(DBGMCU->CR, DBGMCU_CR_DBG_STANDBY);
522 }
523
524 /**
525 * @brief Disable the Debug Module during STANDBY mode.
526 * @retval None
527 */
HAL_DBGMCU_DisableDBGStandbyMode(void)528 void HAL_DBGMCU_DisableDBGStandbyMode(void)
529 {
530 CLEAR_BIT(DBGMCU->CR, DBGMCU_CR_DBG_STANDBY);
531 }
532
533 /**
534 * @}
535 */
536
537 /** @defgroup HAL_Exported_Functions_Group4 HAL SYSCFG configuration functions
538 * @brief HAL SYSCFG configuration functions
539 *
540 @verbatim
541 ===============================================================================
542 ##### HAL SYSCFG configuration functions #####
543 ===============================================================================
544 [..] This section provides functions allowing to:
545 (+) Start a hardware SRAM2 erase operation
546 (+) Configure the Voltage reference buffer
547 (+) Enable/Disable the Voltage reference buffer
548 (+) Enable/Disable the I/O analog switch voltage booster
549 (+) Enable/Disable the I/O analog switch supplied by VDD
550
551 @endverbatim
552 * @{
553 */
554
555 /**
556 * @brief Start a hardware SRAM2 erase operation.
557 * @note As long as SRAM2 is not erased the SRAM2ER bit will be set.
558 * This bit is automatically reset at the end of the SRAM2 erase operation.
559 * @retval None
560 */
HAL_SYSCFG_SRAM2Erase(void)561 void HAL_SYSCFG_SRAM2Erase(void)
562 {
563 /* unlock the write protection of the SRAM2ER bit */
564 SYSCFG->SKR = 0xCA;
565 SYSCFG->SKR = 0x53;
566
567 /* Starts a hardware SRAM2 erase operation*/
568 SET_BIT(SYSCFG->SCSR, SYSCFG_SCSR_SRAM2ER);
569 }
570
571 /**
572 * @brief Configure the internal voltage reference buffer voltage scale.
573 * @param VoltageScaling specifies the output voltage to achieve
574 * This parameter can be one of the following values:
575 * @arg SYSCFG_VREFBUF_VOLTAGE_SCALE0: VREF_OUT1 around 2.048 V.
576 * This requires VDDA equal to or higher than 2.4 V.
577 * @arg SYSCFG_VREFBUF_VOLTAGE_SCALE1: VREF_OUT1 around 2.5 V.
578 * This requires VDDA equal to or higher than 2.8 V.
579 * @note Retrieve the TrimmingValue from factory located at
580 * VREFBUF_SC0_CAL_ADDR or VREFBUF_SC1_CAL_ADDR addresses.
581 * @retval None
582 */
HAL_SYSCFG_VREFBUF_VoltageScalingConfig(uint32_t VoltageScaling)583 void HAL_SYSCFG_VREFBUF_VoltageScalingConfig(uint32_t VoltageScaling)
584 {
585 uint32_t TrimmingValue;
586
587 /* Check the parameters */
588 assert_param(IS_SYSCFG_VREFBUF_VOLTAGE_SCALE(VoltageScaling));
589
590 MODIFY_REG(VREFBUF->CSR, VREFBUF_CSR_VRS, VoltageScaling);
591
592 /* Restrieve Calibration data and store them into trimming field */
593 if (VoltageScaling == SYSCFG_VREFBUF_VOLTAGE_SCALE0)
594 {
595 TrimmingValue = ((uint32_t) *VREFBUF_SC0_CAL_ADDR) & 0x3FU;
596 }
597 else
598 {
599 TrimmingValue = ((uint32_t) *VREFBUF_SC1_CAL_ADDR) & 0x3FU;
600 }
601 assert_param(IS_SYSCFG_VREFBUF_TRIMMING(TrimmingValue));
602
603 HAL_SYSCFG_VREFBUF_TrimmingConfig(TrimmingValue);
604 }
605
606 /**
607 * @brief Configure the internal voltage reference buffer high impedance mode.
608 * @param Mode specifies the high impedance mode
609 * This parameter can be one of the following values:
610 * @arg SYSCFG_VREFBUF_HIGH_IMPEDANCE_DISABLE: VREF+ pin is internally connect to VREFINT output.
611 * @arg SYSCFG_VREFBUF_HIGH_IMPEDANCE_ENABLE: VREF+ pin is high impedance.
612 * @retval None
613 */
HAL_SYSCFG_VREFBUF_HighImpedanceConfig(uint32_t Mode)614 void HAL_SYSCFG_VREFBUF_HighImpedanceConfig(uint32_t Mode)
615 {
616 /* Check the parameters */
617 assert_param(IS_SYSCFG_VREFBUF_HIGH_IMPEDANCE(Mode));
618
619 MODIFY_REG(VREFBUF->CSR, VREFBUF_CSR_HIZ, Mode);
620 }
621
622 /**
623 * @brief Tune the Internal Voltage Reference buffer (VREFBUF).
624 * @retval None
625 */
HAL_SYSCFG_VREFBUF_TrimmingConfig(uint32_t TrimmingValue)626 void HAL_SYSCFG_VREFBUF_TrimmingConfig(uint32_t TrimmingValue)
627 {
628 /* Check the parameters */
629 assert_param(IS_SYSCFG_VREFBUF_TRIMMING(TrimmingValue));
630
631 MODIFY_REG(VREFBUF->CCR, VREFBUF_CCR_TRIM, TrimmingValue);
632 }
633
634 /**
635 * @brief Enable the Internal Voltage Reference buffer (VREFBUF).
636 * @retval HAL_OK/HAL_TIMEOUT
637 */
HAL_SYSCFG_EnableVREFBUF(void)638 HAL_StatusTypeDef HAL_SYSCFG_EnableVREFBUF(void)
639 {
640 uint32_t tickstart;
641
642 SET_BIT(VREFBUF->CSR, VREFBUF_CSR_ENVR);
643
644 /* Get Start Tick*/
645 tickstart = HAL_GetTick();
646
647 /* Wait for VRR bit */
648 while (READ_BIT(VREFBUF->CSR, VREFBUF_CSR_VRR) == 0U)
649 {
650 if ((HAL_GetTick() - tickstart) > VREFBUF_TIMEOUT_VALUE)
651 {
652 return HAL_TIMEOUT;
653 }
654 }
655
656 return HAL_OK;
657 }
658
659 /**
660 * @brief Disable the Internal Voltage Reference buffer (VREFBUF).
661 *
662 * @retval None
663 */
HAL_SYSCFG_DisableVREFBUF(void)664 void HAL_SYSCFG_DisableVREFBUF(void)
665 {
666 CLEAR_BIT(VREFBUF->CSR, VREFBUF_CSR_ENVR);
667 }
668
669 /**
670 * @brief Enable the I/O analog switch voltage booster
671 * @note Insure low VDDA voltage operation with I/O analog switch control
672 * @retval None
673 */
HAL_SYSCFG_EnableIOAnalogBooster(void)674 void HAL_SYSCFG_EnableIOAnalogBooster(void)
675 {
676 MODIFY_REG(SYSCFG->CFGR1, (SYSCFG_CFGR1_BOOSTEN | SYSCFG_CFGR1_ANASWVDD), SYSCFG_CFGR1_BOOSTEN);
677 }
678
679 /**
680 * @brief Disable the I/O analog switch voltage booster
681 *
682 * @retval None
683 */
HAL_SYSCFG_DisableIOAnalogBooster(void)684 void HAL_SYSCFG_DisableIOAnalogBooster(void)
685 {
686 CLEAR_BIT(SYSCFG->CFGR1, SYSCFG_CFGR1_BOOSTEN);
687 }
688
689 /**
690 * @brief Enable the I/O analog switch supplied by VDD
691 * @note To be used when I/O analog switch voltage booster is not enabled
692 * @retval None
693 */
HAL_SYSCFG_EnableIOAnalogSwitchVdd(void)694 void HAL_SYSCFG_EnableIOAnalogSwitchVdd(void)
695 {
696 MODIFY_REG(SYSCFG->CFGR1, (SYSCFG_CFGR1_BOOSTEN | SYSCFG_CFGR1_ANASWVDD), SYSCFG_CFGR1_ANASWVDD);
697 }
698
699 /**
700 * @brief Disable the I/O analog switch supplied by VDD
701 *
702 * @retval None
703 */
HAL_SYSCFG_DisableIOAnalogSwitchVdd(void)704 void HAL_SYSCFG_DisableIOAnalogSwitchVdd(void)
705 {
706 CLEAR_BIT(SYSCFG->CFGR1, SYSCFG_CFGR1_ANASWVDD);
707 }
708
709 /**
710 * @}
711 */
712
713 /** @defgroup HAL_Exported_Functions_Group5 HAL SYSCFG lock management functions
714 * @brief SYSCFG lock management functions.
715 *
716 @verbatim
717 ===============================================================================
718 ##### SYSCFG lock functions #####
719 ===============================================================================
720
721 @endverbatim
722 * @{
723 */
724
725 /**
726 * @brief Lock the SYSCFG item(s).
727 * @note Setting lock(s) depends on privilege mode in secure/non-secure code
728 * Lock(s) cleared only at system reset
729 * @param Item Item(s) to set lock on.
730 * This parameter can be a combination of @ref SYSCFG_Lock_items
731 * @retval None
732 */
HAL_SYSCFG_Lock(uint32_t Item)733 void HAL_SYSCFG_Lock(uint32_t Item)
734 {
735 /* Check the parameters */
736 assert_param(IS_SYSCFG_LOCK_ITEMS(Item));
737
738 /* Privilege secure/non-secure locks */
739 SYSCFG->CNSLCKR = (0xFFFFU & Item); /* non-secure lock item in 16 lowest bits */
740
741 #if defined (__ARM_FEATURE_CMSE) && (__ARM_FEATURE_CMSE == 3U)
742 /* Privilege secure only locks */
743 SYSCFG->CSLCKR = ((0xFFFF0000U & Item) >> 16U); /* Secure-only lock item in 16 highest bits */
744 #endif /* __ARM_FEATURE_CMSE */
745 }
746
747 /**
748 * @brief Get the lock state of SYSCFG item.
749 * @note Getting lock(s) depends on privilege mode in secure/non-secure code
750 * @param pItem pointer to return locked items
751 * the return value can be a combination of @ref SYSCFG_Lock_items
752 * @retval HAL status
753 */
HAL_SYSCFG_GetLock(uint32_t * pItem)754 HAL_StatusTypeDef HAL_SYSCFG_GetLock(uint32_t *pItem)
755 {
756 uint32_t tmp_lock;
757
758 /* Check null pointer */
759 if (pItem == NULL)
760 {
761 return HAL_ERROR;
762 }
763
764 /* Get the non-secure lock state */
765 tmp_lock = SYSCFG->CNSLCKR;
766
767 /* Get the secure lock state in secure code */
768 #if defined (__ARM_FEATURE_CMSE) && (__ARM_FEATURE_CMSE == 3U)
769 tmp_lock |= (SYSCFG->CSLCKR << 16U);
770 #endif /* __ARM_FEATURE_CMSE */
771
772 /* Return overall lock status */
773 *pItem = tmp_lock;
774
775 return HAL_OK;
776 }
777
778 /**
779 * @}
780 */
781
782 #if defined (__ARM_FEATURE_CMSE) && (__ARM_FEATURE_CMSE == 3U)
783
784
785 /** @defgroup HAL_Exported_Functions_Group6 HAL SYSCFG attributes management functions
786 * @brief SYSCFG attributes management functions.
787 *
788 @verbatim
789 ===============================================================================
790 ##### SYSCFG attributes functions #####
791 ===============================================================================
792
793 @endverbatim
794 * @{
795 */
796
797 /**
798 * @brief Configure the SYSCFG item attribute(s).
799 * @note Available attributes are to secure SYSCFG items, so this function is
800 * only available in secure
801 * @param Item Item(s) to set attributes on.
802 * This parameter can be a one or a combination of @ref SYSCFG_Attributes_items
803 * @param Attributes specifies the secure/non-secure attributes.
804 * @retval None
805 */
HAL_SYSCFG_ConfigAttributes(uint32_t Item,uint32_t Attributes)806 void HAL_SYSCFG_ConfigAttributes(uint32_t Item, uint32_t Attributes)
807 {
808 uint32_t tmp;
809
810 /* Check the parameters */
811 assert_param(IS_SYSCFG_ITEMS_ATTRIBUTES(Item));
812 assert_param(IS_SYSCFG_ATTRIBUTES(Attributes));
813
814 tmp = SYSCFG_S->SECCFGR;
815
816 /* Set or reset Item */
817 if ((Attributes & SYSCFG_SEC) != 0x00U)
818 {
819 tmp |= Item;
820 }
821 else
822 {
823 tmp &= ~Item;
824 }
825
826 /* Set secure attributes */
827 SYSCFG_S->SECCFGR = tmp;
828 }
829
830 /**
831 * @brief Get the attribute of a SYSCFG item.
832 * @note Available attributes are to secure SYSCFG items, so this function is
833 * only available in secure
834 * @param Item Single item to get secure/non-secure attribute from.
835 * @param pAttributes pointer to return the attribute.
836 * @retval HAL status
837 */
HAL_SYSCFG_GetConfigAttributes(uint32_t Item,uint32_t * pAttributes)838 HAL_StatusTypeDef HAL_SYSCFG_GetConfigAttributes(uint32_t Item, uint32_t *pAttributes)
839 {
840 /* Check null pointer */
841 if (pAttributes == NULL)
842 {
843 return HAL_ERROR;
844 }
845
846 /* Check the parameters */
847 assert_param(IS_SYSCFG_ITEMS_ATTRIBUTES(Item));
848
849 /* Get the secure attribute state */
850 if ((SYSCFG_S->SECCFGR & Item) != 0U)
851 {
852 *pAttributes = SYSCFG_SEC;
853 }
854 else
855 {
856 *pAttributes = SYSCFG_NSEC;
857 }
858
859 return HAL_OK;
860 }
861
862 /**
863 * @}
864 */
865
866 #endif /* __ARM_FEATURE_CMSE */
867
868 /**
869 * @}
870 */
871
872 #endif /* HAL_MODULE_ENABLED */
873 /**
874 * @}
875 */
876
877 /**
878 * @}
879 */
880
881
