diff options
| author | joshua <joshua@joshuayun.com> | 2023-12-30 23:54:31 -0500 |
|---|---|---|
| committer | joshua <joshua@joshuayun.com> | 2023-12-30 23:54:31 -0500 |
| commit | 86608c6770cf08c138a2bdab5855072f64be09ef (patch) | |
| tree | 494a61b3ef37e76f9235a0d10f5c93d97290a35f /Drivers/STM32H7xx_HAL_Driver/Src/stm32h7xx_hal_timebase_tim_template.c | |
| download | sdr-software-master.tar.gz | |
Diffstat (limited to 'Drivers/STM32H7xx_HAL_Driver/Src/stm32h7xx_hal_timebase_tim_template.c')
| -rw-r--r-- | Drivers/STM32H7xx_HAL_Driver/Src/stm32h7xx_hal_timebase_tim_template.c | 178 |
1 files changed, 178 insertions, 0 deletions
diff --git a/Drivers/STM32H7xx_HAL_Driver/Src/stm32h7xx_hal_timebase_tim_template.c b/Drivers/STM32H7xx_HAL_Driver/Src/stm32h7xx_hal_timebase_tim_template.c new file mode 100644 index 0000000..887a3cd --- /dev/null +++ b/Drivers/STM32H7xx_HAL_Driver/Src/stm32h7xx_hal_timebase_tim_template.c @@ -0,0 +1,178 @@ +/**
+ ******************************************************************************
+ * @file stm32h7xx_hal_timebase_tim_template.c
+ * @author MCD Application Team
+ * @brief HAL time base based on the hardware TIM.
+ *
+ * This file overrides the native HAL time base functions (defined as weak)
+ * the TIM time base:
+ * + Initializes the TIM peripheral generate a Period elapsed Event each 1ms
+ * + HAL_IncTick is called inside HAL_TIM_PeriodElapsedCallback ie each 1ms
+ *
+ ******************************************************************************
+ * @attention
+ *
+ * Copyright (c) 2017 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 #####
+ ==============================================================================
+ [..]
+ This file must be copied to the application folder and modified as follows:
+ (#) Rename it to 'stm32h7xx_hal_timebase_tim.c'
+ (#) Add this file and the TIM HAL drivers to your project and uncomment
+ HAL_TIM_MODULE_ENABLED define in stm32h7xx_hal_conf.h
+
+ @endverbatim
+ ******************************************************************************
+ */
+
+/* Includes ------------------------------------------------------------------*/
+#include "stm32h7xx_hal.h"
+
+/* Private typedef -----------------------------------------------------------*/
+/* Private define ------------------------------------------------------------*/
+/* Private macro -------------------------------------------------------------*/
+/* Private variables ---------------------------------------------------------*/
+static 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;
+ uint32_t uwPrescalerValue;
+ uint32_t pFLatency;
+ HAL_StatusTypeDef status;
+
+ /* 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 = 2UL * 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;
+ status = HAL_TIM_Base_Init(&TimHandle);
+ if (status == HAL_OK)
+ {
+ /* Start the TIM time Base generation in interrupt mode */
+ status = HAL_TIM_Base_Start_IT(&TimHandle);
+ if (status == HAL_OK)
+ {
+ /* Enable the TIM6 global Interrupt */
+ HAL_NVIC_EnableIRQ(TIM6_DAC_IRQn);
+
+ if (TickPriority < (1UL << __NVIC_PRIO_BITS))
+ {
+ /* Enable the TIM6 global Interrupt */
+ HAL_NVIC_SetPriority(TIM6_DAC_IRQn, TickPriority, 0);
+ uwTickPrio = TickPriority;
+ }
+ else
+ {
+ status = HAL_ERROR;
+ }
+ }
+}
+
+ /* Return function status */
+ return status;
+}
+
+/**
+ * @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(&TimHandle, 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(&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)
+{
+ /* Prevent unused argument(s) compilation warning */
+ UNUSED(htim);
+
+ HAL_IncTick();
+}
+
+/**
+ * @brief This function handles TIM interrupt request.
+ * @param None
+ * @retval None
+ */
+void TIM6_DAC_IRQHandler(void)
+{
+ HAL_TIM_IRQHandler(&TimHandle);
+}
+
+
|