Mercurial > public > ostc4
view Common/Drivers/STM32F4xx_HAL_Driver/Src/stm32f4xx_hal_timebase_tim_template.c @ 309:b0045281cb2d cleanup-4
cleanup: factor out SHelper typedef (and more)
It is totally useless to carry some data around in the SLifeData
global data, that is never used in a significant way. All data
in the SHelper typedef can trivially be changed to static
data in the new setAvgDepth code.
Further, cleanup the setAvgDepth code. Reset to 0 instead of 1,
adapt the references to the new local and static data instead
of pointers to the external data.
Signed-off-by: Jan Mulder <jlmulder@xs4all.nl>
author | Jan Mulder <jlmulder@xs4all.nl> |
---|---|
date | Fri, 24 May 2019 09:29:29 +0200 |
parents | c78bcbd5deda |
children |
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/** ****************************************************************************** * @file stm32f4xx_hal_timebase_tim_template.c * @author MCD Application Team * @brief HAL time base based on the hardware TIM Template. * * This file overrides the native HAL time base functions (defined as weak) * the TIM time base: * + Intializes the TIM peripheral generate a Period elapsed Event each 1ms * + HAL_IncTick is called inside HAL_TIM_PeriodElapsedCallback ie each 1ms * ****************************************************************************** * @attention * * <h2><center>© COPYRIGHT(c) 2017 STMicroelectronics</center></h2> * * Redistribution and use in source and binary forms, with or without modification, * are permitted provided that the following conditions are met: * 1. Redistributions of source code must retain the above copyright notice, * this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright notice, * this list of conditions and the following disclaimer in the documentation * and/or other materials provided with the distribution. * 3. Neither the name of STMicroelectronics nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * ****************************************************************************** */ /* Includes ------------------------------------------------------------------*/ #include "stm32f4xx_hal.h" /** @addtogroup STM32F4xx_HAL_Driver * @{ */ /** @addtogroup HAL_TimeBase_TIM * @{ */ /* Private typedef -----------------------------------------------------------*/ /* Private define ------------------------------------------------------------*/ /* Private macro -------------------------------------------------------------*/ /* Private variables ---------------------------------------------------------*/ TIM_HandleTypeDef TimHandle; /* Private function prototypes -----------------------------------------------*/ void TIM6_DAC_IRQHandler(void); /* Private functions ---------------------------------------------------------*/ /** * @brief This function configures the TIM6 as a time base source. * 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 configured, by HAL_RCC_ClockConfig(). * @param TickPriority Tick interrupt priority. * @retval HAL status */ HAL_StatusTypeDef HAL_InitTick (uint32_t TickPriority) { RCC_ClkInitTypeDef clkconfig; uint32_t uwTimclock, uwAPB1Prescaler = 0U; uint32_t uwPrescalerValue = 0U; uint32_t pFLatency; /*Configure the TIM6 IRQ priority */ HAL_NVIC_SetPriority(TIM6_DAC_IRQn, TickPriority ,0U); /* Enable the TIM6 global Interrupt */ HAL_NVIC_EnableIRQ(TIM6_DAC_IRQn); /* Enable TIM6 clock */ __HAL_RCC_TIM6_CLK_ENABLE(); /* Get clock configuration */ HAL_RCC_GetClockConfig(&clkconfig, &pFLatency); /* Get APB1 prescaler */ uwAPB1Prescaler = clkconfig.APB1CLKDivider; /* Compute TIM6 clock */ if (uwAPB1Prescaler == RCC_HCLK_DIV1) { uwTimclock = HAL_RCC_GetPCLK1Freq(); } else { uwTimclock = 2*HAL_RCC_GetPCLK1Freq(); } /* Compute the prescaler value to have TIM6 counter clock equal to 1MHz */ uwPrescalerValue = (uint32_t) ((uwTimclock / 1000000U) - 1U); /* Initialize TIM6 */ TimHandle.Instance = TIM6; /* Initialize TIMx peripheral as follow: + Period = [(TIM6CLK/1000) - 1]. to have a (1/1000) s time base. + Prescaler = (uwTimclock/1000000 - 1) to have a 1MHz counter clock. + ClockDivision = 0 + Counter direction = Up */ TimHandle.Init.Period = (1000000U / 1000U) - 1U; TimHandle.Init.Prescaler = uwPrescalerValue; TimHandle.Init.ClockDivision = 0U; TimHandle.Init.CounterMode = TIM_COUNTERMODE_UP; if(HAL_TIM_Base_Init(&TimHandle) == HAL_OK) { /* Start the TIM time Base generation in interrupt mode */ return HAL_TIM_Base_Start_IT(&TimHandle); } /* Return function status */ return HAL_ERROR; } /** * @brief Suspend Tick increment. * @note Disable the tick increment by disabling TIM6 update interrupt. * @retval None */ void HAL_SuspendTick(void) { /* Disable TIM6 update Interrupt */ __HAL_TIM_DISABLE_IT(&TimHandle, TIM_IT_UPDATE); } /** * @brief Resume Tick increment. * @note Enable the tick increment by Enabling TIM6 update interrupt. * @retval None */ void HAL_ResumeTick(void) { /* Enable TIM6 Update interrupt */ __HAL_TIM_ENABLE_IT(&TimHandle, TIM_IT_UPDATE); } /** * @brief Period elapsed callback in non blocking mode * @note This function is called when TIM6 interrupt took place, inside * HAL_TIM_IRQHandler(). It makes a direct call to HAL_IncTick() to increment * a global variable "uwTick" used as application time base. * @param htim TIM handle * @retval None */ void HAL_TIM_PeriodElapsedCallback(TIM_HandleTypeDef *htim) { HAL_IncTick(); } /** * @brief This function handles TIM interrupt request. * @retval None */ void TIM6_DAC_IRQHandler(void) { HAL_TIM_IRQHandler(&TimHandle); } /** * @} */ /** * @} */ /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/