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Diffstat (limited to 'FreeRTOS/Demo/CORTEX_MPU_M7_NUCLEO_H743ZI2_GCC_IAR_Keil/ST_Code/Core/Src/stm32h7xx_hal_timebase_tim.c')
-rw-r--r-- | FreeRTOS/Demo/CORTEX_MPU_M7_NUCLEO_H743ZI2_GCC_IAR_Keil/ST_Code/Core/Src/stm32h7xx_hal_timebase_tim.c | 114 |
1 files changed, 114 insertions, 0 deletions
diff --git a/FreeRTOS/Demo/CORTEX_MPU_M7_NUCLEO_H743ZI2_GCC_IAR_Keil/ST_Code/Core/Src/stm32h7xx_hal_timebase_tim.c b/FreeRTOS/Demo/CORTEX_MPU_M7_NUCLEO_H743ZI2_GCC_IAR_Keil/ST_Code/Core/Src/stm32h7xx_hal_timebase_tim.c new file mode 100644 index 000000000..39f82cbb9 --- /dev/null +++ b/FreeRTOS/Demo/CORTEX_MPU_M7_NUCLEO_H743ZI2_GCC_IAR_Keil/ST_Code/Core/Src/stm32h7xx_hal_timebase_tim.c @@ -0,0 +1,114 @@ +/* USER CODE BEGIN Header */ +/** + ****************************************************************************** + * @file stm32h7xx_hal_timebase_TIM.c + * @brief HAL time base based on the hardware TIM. + ****************************************************************************** + * @attention + * + * <h2><center>© Copyright (c) 2020 STMicroelectronics. + * All rights reserved.</center></h2> + * + * This software component is licensed by ST under Ultimate Liberty license + * SLA0044, the "License"; You may not use this file except in compliance with + * the License. You may obtain a copy of the License at: + * www.st.com/SLA0044 + * + ****************************************************************************** + */ +/* USER CODE END Header */ + +/* Includes ------------------------------------------------------------------*/ +#include "stm32h7xx_hal.h" +#include "stm32h7xx_hal_tim.h" + +/* Private typedef -----------------------------------------------------------*/ +/* Private define ------------------------------------------------------------*/ +/* Private macro -------------------------------------------------------------*/ +/* Private variables ---------------------------------------------------------*/ +TIM_HandleTypeDef htim6; +/* Private function prototypes -----------------------------------------------*/ +/* 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 = 0; + uint32_t uwPrescalerValue = 0; + uint32_t pFLatency; + + /*Configure the TIM6 IRQ priority */ + HAL_NVIC_SetPriority(TIM6_DAC_IRQn, TickPriority ,0); + + /* 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); + + /* Compute TIM6 clock */ + uwTimclock = HAL_RCC_GetPCLK1Freq(); + + /* Compute the prescaler value to have TIM6 counter clock equal to 1MHz */ + uwPrescalerValue = (uint32_t) ((uwTimclock / 1000000) - 1); + + /* Initialize TIM6 */ + htim6.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 + */ + htim6.Init.Period = (1000000 / 1000) - 1; + htim6.Init.Prescaler = uwPrescalerValue; + htim6.Init.ClockDivision = 0; + htim6.Init.CounterMode = TIM_COUNTERMODE_UP; + if(HAL_TIM_Base_Init(&htim6) == HAL_OK) + { + /* Start the TIM time Base generation in interrupt mode */ + return HAL_TIM_Base_Start_IT(&htim6); + } + + /* Return function status */ + return HAL_ERROR; +} + +/** + * @brief Suspend Tick increment. + * @note Disable the tick increment by disabling TIM6 update interrupt. + * @param None + * @retval None + */ +void HAL_SuspendTick(void) +{ + /* Disable TIM6 update Interrupt */ + __HAL_TIM_DISABLE_IT(&htim6, TIM_IT_UPDATE); +} + +/** + * @brief Resume Tick increment. + * @note Enable the tick increment by Enabling TIM6 update interrupt. + * @param None + * @retval None + */ +void HAL_ResumeTick(void) +{ + /* Enable TIM6 Update interrupt */ + __HAL_TIM_ENABLE_IT(&htim6, TIM_IT_UPDATE); +} + +/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/ |