| | |
| | | * @brief HAL module driver. |
| | | * This is the common part of the HAL initialization |
| | | * |
| | | ****************************************************************************** |
| | | * @attention |
| | | * |
| | | * Copyright (c) 2016 STMicroelectronics. |
| | | * All rights reserved. |
| | | * |
| | | * This software is licensed under terms that can be found in the LICENSE file |
| | | * in the root directory of this software component. |
| | | * If no LICENSE file comes with this software, it is provided AS-IS. |
| | | * |
| | | ****************************************************************************** |
| | | @verbatim |
| | | ============================================================================== |
| | | ##### How to use this driver ##### |
| | |
| | | (+) Services HAL APIs |
| | | |
| | | @endverbatim |
| | | ****************************************************************************** |
| | | * @attention |
| | | * |
| | | * <h2><center>© 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 __STM32L0xx_HAL_VERSION_MAIN (0x01U) /*!< [31:24] main version */ |
| | | #define __STM32L0xx_HAL_VERSION_SUB1 (0x0AU) /*!< [23:16] sub1 version */ |
| | | #define __STM32L0xx_HAL_VERSION_SUB2 (0x02U) /*!< [15:8] sub2 version */ |
| | | #define __STM32L0xx_HAL_VERSION_SUB2 (0x06U) /*!< [15:8] sub2 version */ |
| | | #define __STM32L0xx_HAL_VERSION_RC (0x00U) /*!< [7:0] release candidate */ |
| | | #define __STM32L0xx_HAL_VERSION ((__STM32L0xx_HAL_VERSION_MAIN << 24U)\ |
| | | |(__STM32L0xx_HAL_VERSION_SUB1 << 16U)\ |
| | | |(__STM32L0xx_HAL_VERSION_SUB2 << 8U )\ |
| | | |(__STM32L0xx_HAL_VERSION_RC)) |
| | | |
| | | #define IDCODE_DEVID_MASK ((uint32_t)0x00000FFFU) |
| | | #define IDCODE_DEVID_MASK (0x00000FFFU) |
| | | |
| | | /** |
| | | * @} |
| | |
| | | * @{ |
| | | */ |
| | | __IO uint32_t uwTick; |
| | | uint32_t uwTickPrio = (1UL << __NVIC_PRIO_BITS); /* Invalid PRIO */ |
| | | HAL_TickFreqTypeDef uwTickFreq = HAL_TICK_FREQ_DEFAULT; /* 1KHz */ |
| | | /** |
| | | * @} |
| | | */ |
| | |
| | | |
| | | /** |
| | | * @brief This function configures the source of the time base: |
| | | * The time source is configured to have 1ms time base with a dedicated |
| | | * The time source is configured to have 1ms time base with a dedicated |
| | | * Tick interrupt priority. |
| | | * @note This function is called automatically at the beginning of program after |
| | | * reset by HAL_Init() or at any time when clock is reconfigured by HAL_RCC_ClockConfig(). |
| | | * @note In the default implementation, SysTick timer is the source of time base. |
| | | * It is used to generate interrupts at regular time intervals. |
| | | * Care must be taken if HAL_Delay() is called from a peripheral ISR process, |
| | | * @note In the default implementation, SysTick timer is the source of time base. |
| | | * It is used to generate interrupts at regular time intervals. |
| | | * Care must be taken if HAL_Delay() is called from a peripheral ISR process, |
| | | * The SysTick interrupt must have higher priority (numerically lower) |
| | | * than the peripheral interrupt. Otherwise the caller ISR process will be blocked. |
| | | * The function is declared as __weak to be overwritten in case of other |
| | |
| | | */ |
| | | __weak HAL_StatusTypeDef HAL_InitTick(uint32_t TickPriority) |
| | | { |
| | | HAL_StatusTypeDef status = HAL_OK; |
| | | |
| | | /*Configure the SysTick to have interrupt in 1ms time basis*/ |
| | | if (HAL_SYSTICK_Config(SystemCoreClock/1000UL) != 0U) |
| | | /* Configure the SysTick to have interrupt in 1ms time basis*/ |
| | | if (HAL_SYSTICK_Config(SystemCoreClock / (1000U / uwTickFreq)) > 0U) |
| | | { |
| | | status = HAL_ERROR; |
| | | return HAL_ERROR; |
| | | } |
| | | |
| | | /* Configure the SysTick IRQ priority */ |
| | | if (TickPriority < (1UL << __NVIC_PRIO_BITS)) |
| | | { |
| | | HAL_NVIC_SetPriority(SysTick_IRQn, TickPriority, 0U); |
| | | uwTickPrio = TickPriority; |
| | | } |
| | | else |
| | | { |
| | | /*Configure the SysTick IRQ priority */ |
| | | HAL_NVIC_SetPriority(SysTick_IRQn, TickPriority, 0); |
| | | return HAL_ERROR; |
| | | } |
| | | |
| | | /* Return function status */ |
| | | return status; |
| | | return HAL_OK; |
| | | } |
| | | |
| | | /** |
| | |
| | | */ |
| | | __weak void HAL_IncTick(void) |
| | | { |
| | | uwTick++; |
| | | uwTick += uwTickFreq; |
| | | } |
| | | |
| | | /** |
| | |
| | | __weak uint32_t HAL_GetTick(void) |
| | | { |
| | | return uwTick; |
| | | } |
| | | |
| | | /** |
| | | * @brief This function returns a tick priority. |
| | | * @retval tick priority |
| | | */ |
| | | uint32_t HAL_GetTickPrio(void) |
| | | { |
| | | return uwTickPrio; |
| | | } |
| | | |
| | | /** |
| | | * @brief Set new tick Freq. |
| | | * @retval Status |
| | | */ |
| | | HAL_StatusTypeDef HAL_SetTickFreq(HAL_TickFreqTypeDef Freq) |
| | | { |
| | | HAL_StatusTypeDef status = HAL_OK; |
| | | HAL_TickFreqTypeDef prevTickFreq; |
| | | |
| | | assert_param(IS_TICKFREQ(Freq)); |
| | | |
| | | if (uwTickFreq != Freq) |
| | | { |
| | | /* Back up uwTickFreq frequency */ |
| | | prevTickFreq = uwTickFreq; |
| | | |
| | | /* Update uwTickFreq global variable used by HAL_InitTick() */ |
| | | uwTickFreq = Freq; |
| | | |
| | | /* Apply the new tick Freq */ |
| | | status = HAL_InitTick(uwTickPrio); |
| | | |
| | | if (status != HAL_OK) |
| | | { |
| | | /* Restore previous tick frequency */ |
| | | uwTickFreq = prevTickFreq; |
| | | } |
| | | } |
| | | |
| | | return status; |
| | | } |
| | | |
| | | /** |
| | | * @brief Return tick frequency. |
| | | * @retval Tick frequency. |
| | | * Value of @ref HAL_TickFreqTypeDef. |
| | | */ |
| | | HAL_TickFreqTypeDef HAL_GetTickFreq(void) |
| | | { |
| | | return uwTickFreq; |
| | | } |
| | | |
| | | /** |
| | |
| | | uint32_t tickstart = HAL_GetTick(); |
| | | uint32_t wait = Delay; |
| | | |
| | | /* Add a period to guaranty minimum wait */ |
| | | /* Add a freq to guarantee minimum wait */ |
| | | if (wait < HAL_MAX_DELAY) |
| | | { |
| | | wait++; |
| | | wait += (uint32_t)(uwTickFreq); |
| | | } |
| | | |
| | | while((HAL_GetTick() - tickstart) < wait) |
| | |
| | | * @} |
| | | */ |
| | | |
| | | /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/ |
| | | |
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