[Mod] First commit

Core/Inc/FreeRTOSConfig.h

@@ -0,0 +1,149 @@
+/* USER CODE BEGIN Header */
+/*
+ * FreeRTOS Kernel V10.0.1
+ * Copyright (C) 2017 Amazon.com, Inc. or its affiliates.  All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of
+ * this software and associated documentation files (the "Software"), to deal in
+ * the Software without restriction, including without limitation the rights to
+ * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+ * the Software, and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+ * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+ * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * http://www.FreeRTOS.org
+ * http://aws.amazon.com/freertos
+ *
+ * 1 tab == 4 spaces!
+ */
+/* USER CODE END Header */
+
+#ifndef FREERTOS_CONFIG_H
+#define FREERTOS_CONFIG_H
+
+/*-----------------------------------------------------------
+ * Application specific definitions.
+ *
+ * These definitions should be adjusted for your particular hardware and
+ * application requirements.
+ *
+ * These parameters and more are described within the 'configuration' section of the
+ * FreeRTOS API documentation available on the FreeRTOS.org web site.
+ *
+ * See http://www.freertos.org/a00110.html
+ *----------------------------------------------------------*/
+
+/* USER CODE BEGIN Includes */
+/* Section where include file can be added */
+/* USER CODE END Includes */
+
+/* Ensure definitions are only used by the compiler, and not by the assembler. */
+#if defined(__ICCARM__) || defined(__CC_ARM) || defined(__GNUC__)
+  #include <stdint.h>
+  extern uint32_t SystemCoreClock;
+#endif
+#define configUSE_PREEMPTION                     1
+#define configSUPPORT_STATIC_ALLOCATION          1
+#define configSUPPORT_DYNAMIC_ALLOCATION         1
+#define configUSE_IDLE_HOOK                      0
+#define configUSE_TICK_HOOK                      0
+#define configCPU_CLOCK_HZ                       ( SystemCoreClock )
+#define configTICK_RATE_HZ                       ((TickType_t)1000)
+#define configMAX_PRIORITIES                     ( 56 )
+#define configMINIMAL_STACK_SIZE                 ((uint16_t)128)
+#define configTOTAL_HEAP_SIZE                    ((size_t)3072)
+#define configMAX_TASK_NAME_LEN                  ( 16 )
+#define configUSE_TRACE_FACILITY                 1
+#define configUSE_16_BIT_TICKS                   0
+#define configUSE_MUTEXES                        1
+#define configQUEUE_REGISTRY_SIZE                8
+#define configUSE_RECURSIVE_MUTEXES              1
+#define configUSE_COUNTING_SEMAPHORES            1
+#define configUSE_PORT_OPTIMISED_TASK_SELECTION  0
+
+/* Co-routine definitions. */
+#define configUSE_CO_ROUTINES                    0
+#define configMAX_CO_ROUTINE_PRIORITIES          ( 2 )
+
+/* Software timer definitions. */
+#define configUSE_TIMERS                         1
+#define configTIMER_TASK_PRIORITY                ( 2 )
+#define configTIMER_QUEUE_LENGTH                 10
+#define configTIMER_TASK_STACK_DEPTH             256
+
+/* Set the following definitions to 1 to include the API function, or zero
+to exclude the API function. */
+#define INCLUDE_vTaskPrioritySet            1
+#define INCLUDE_uxTaskPriorityGet           1
+#define INCLUDE_vTaskDelete                 1
+#define INCLUDE_vTaskCleanUpResources       0
+#define INCLUDE_vTaskSuspend                1
+#define INCLUDE_vTaskDelayUntil             1
+#define INCLUDE_vTaskDelay                  1
+#define INCLUDE_xTaskGetSchedulerState      1
+#define INCLUDE_xTimerPendFunctionCall      1
+#define INCLUDE_xQueueGetMutexHolder        1
+#define INCLUDE_uxTaskGetStackHighWaterMark 1
+#define INCLUDE_eTaskGetState               1
+
+/*
+ * The CMSIS-RTOS V2 FreeRTOS wrapper is dependent on the heap implementation used
+ * by the application thus the correct define need to be enabled below
+ */
+#define USE_FreeRTOS_HEAP_4
+
+/* Cortex-M specific definitions. */
+#ifdef __NVIC_PRIO_BITS
+ /* __BVIC_PRIO_BITS will be specified when CMSIS is being used. */
+ #define configPRIO_BITS         __NVIC_PRIO_BITS
+#else
+ #define configPRIO_BITS         4
+#endif
+
+/* The lowest interrupt priority that can be used in a call to a "set priority"
+function. */
+#define configLIBRARY_LOWEST_INTERRUPT_PRIORITY   15
+
+/* The highest interrupt priority that can be used by any interrupt service
+routine that makes calls to interrupt safe FreeRTOS API functions.  DO NOT CALL
+INTERRUPT SAFE FREERTOS API FUNCTIONS FROM ANY INTERRUPT THAT HAS A HIGHER
+PRIORITY THAN THIS! (higher priorities are lower numeric values. */
+#define configLIBRARY_MAX_SYSCALL_INTERRUPT_PRIORITY 5
+
+/* Interrupt priorities used by the kernel port layer itself.  These are generic
+to all Cortex-M ports, and do not rely on any particular library functions. */
+#define configKERNEL_INTERRUPT_PRIORITY 		( configLIBRARY_LOWEST_INTERRUPT_PRIORITY << (8 - configPRIO_BITS) )
+/* !!!! configMAX_SYSCALL_INTERRUPT_PRIORITY must not be set to zero !!!!
+See http://www.FreeRTOS.org/RTOS-Cortex-M3-M4.html. */
+#define configMAX_SYSCALL_INTERRUPT_PRIORITY 	( configLIBRARY_MAX_SYSCALL_INTERRUPT_PRIORITY << (8 - configPRIO_BITS) )
+
+/* Normal assert() semantics without relying on the provision of an assert.h
+header file. */
+/* USER CODE BEGIN 1 */
+#define configASSERT( x ) if ((x) == 0) {taskDISABLE_INTERRUPTS(); for( ;; );}
+/* USER CODE END 1 */
+
+/* Definitions that map the FreeRTOS port interrupt handlers to their CMSIS
+standard names. */
+#define vPortSVCHandler    SVC_Handler
+#define xPortPendSVHandler PendSV_Handler
+
+/* IMPORTANT: This define is commented when used with STM32Cube firmware, when the timebase source is SysTick,
+              to prevent overwriting SysTick_Handler defined within STM32Cube HAL */
+
+#define xPortSysTickHandler SysTick_Handler
+
+/* USER CODE BEGIN Defines */
+/* Section where parameter definitions can be added (for instance, to override default ones in FreeRTOS.h) */
+/* USER CODE END Defines */
+
+#endif /* FREERTOS_CONFIG_H */

Core/Inc/gpio.h

@@ -0,0 +1,49 @@
+/* USER CODE BEGIN Header */
+/**
+  ******************************************************************************
+  * @file    gpio.h
+  * @brief   This file contains all the function prototypes for
+  *          the gpio.c file
+  ******************************************************************************
+  * @attention
+  *
+  * Copyright (c) 2023 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.
+  *
+  ******************************************************************************
+  */
+/* USER CODE END Header */
+/* Define to prevent recursive inclusion -------------------------------------*/
+#ifndef __GPIO_H__
+#define __GPIO_H__
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* Includes ------------------------------------------------------------------*/
+#include "main.h"
+
+/* USER CODE BEGIN Includes */
+
+/* USER CODE END Includes */
+
+/* USER CODE BEGIN Private defines */
+
+/* USER CODE END Private defines */
+
+void MX_GPIO_Init(void);
+
+/* USER CODE BEGIN Prototypes */
+
+/* USER CODE END Prototypes */
+
+#ifdef __cplusplus
+}
+#endif
+#endif /*__ GPIO_H__ */
+

Core/Inc/main.h

@@ -57,6 +57,20 @@ void Error_Handler(void);
 /* USER CODE END EFP */
 
 /* Private defines -----------------------------------------------------------*/
+#define B1_Pin GPIO_PIN_13
+#define B1_GPIO_Port GPIOC
+#define USART_TX_Pin GPIO_PIN_2
+#define USART_TX_GPIO_Port GPIOA
+#define USART_RX_Pin GPIO_PIN_3
+#define USART_RX_GPIO_Port GPIOA
+#define LD2_Pin GPIO_PIN_13
+#define LD2_GPIO_Port GPIOB
+#define TMS_Pin GPIO_PIN_13
+#define TMS_GPIO_Port GPIOA
+#define TCK_Pin GPIO_PIN_14
+#define TCK_GPIO_Port GPIOA
+#define SWO_Pin GPIO_PIN_3
+#define SWO_GPIO_Port GPIOB
 
 /* USER CODE BEGIN Private defines */
 

Core/Inc/stm32f3xx_hal_conf.h

@@ -57,8 +57,8 @@
 /*#define HAL_RNG_MODULE_ENABLED   */
 /*#define HAL_RTC_MODULE_ENABLED   */
 /*#define HAL_SPI_MODULE_ENABLED   */
-/*#define HAL_TIM_MODULE_ENABLED   */
-/*#define HAL_UART_MODULE_ENABLED   */
+#define HAL_TIM_MODULE_ENABLED
+#define HAL_UART_MODULE_ENABLED
 /*#define HAL_USART_MODULE_ENABLED   */
 /*#define HAL_IRDA_MODULE_ENABLED   */
 /*#define HAL_SMARTCARD_MODULE_ENABLED   */

Core/Inc/stm32f3xx_it.h

@@ -51,10 +51,8 @@ void HardFault_Handler(void);
 void MemManage_Handler(void);
 void BusFault_Handler(void);
 void UsageFault_Handler(void);
-void SVC_Handler(void);
 void DebugMon_Handler(void);
-void PendSV_Handler(void);
-void SysTick_Handler(void);
+void TIM1_UP_TIM16_IRQHandler(void);
 /* USER CODE BEGIN EFP */
 
 /* USER CODE END EFP */

Core/Inc/usart.h

@@ -0,0 +1,52 @@
+/* USER CODE BEGIN Header */
+/**
+  ******************************************************************************
+  * @file    usart.h
+  * @brief   This file contains all the function prototypes for
+  *          the usart.c file
+  ******************************************************************************
+  * @attention
+  *
+  * Copyright (c) 2023 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.
+  *
+  ******************************************************************************
+  */
+/* USER CODE END Header */
+/* Define to prevent recursive inclusion -------------------------------------*/
+#ifndef __USART_H__
+#define __USART_H__
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* Includes ------------------------------------------------------------------*/
+#include "main.h"
+
+/* USER CODE BEGIN Includes */
+
+/* USER CODE END Includes */
+
+extern UART_HandleTypeDef huart2;
+
+/* USER CODE BEGIN Private defines */
+
+/* USER CODE END Private defines */
+
+void MX_USART2_UART_Init(void);
+
+/* USER CODE BEGIN Prototypes */
+
+/* USER CODE END Prototypes */
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __USART_H__ */
+

Core/Src/freertos.c

@@ -0,0 +1,129 @@
+/* USER CODE BEGIN Header */
+/**
+  ******************************************************************************
+  * File Name          : freertos.c
+  * Description        : Code for freertos applications
+  ******************************************************************************
+  * @attention
+  *
+  * Copyright (c) 2023 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.
+  *
+  ******************************************************************************
+  */
+/* USER CODE END Header */
+
+/* Includes ------------------------------------------------------------------*/
+#include "FreeRTOS.h"
+#include "task.h"
+#include "main.h"
+#include "cmsis_os.h"
+
+/* Private includes ----------------------------------------------------------*/
+/* USER CODE BEGIN Includes */
+
+/* USER CODE END Includes */
+
+/* Private typedef -----------------------------------------------------------*/
+/* USER CODE BEGIN PTD */
+
+/* USER CODE END PTD */
+
+/* Private define ------------------------------------------------------------*/
+/* USER CODE BEGIN PD */
+
+/* USER CODE END PD */
+
+/* Private macro -------------------------------------------------------------*/
+/* USER CODE BEGIN PM */
+
+/* USER CODE END PM */
+
+/* Private variables ---------------------------------------------------------*/
+/* USER CODE BEGIN Variables */
+
+/* USER CODE END Variables */
+/* Definitions for defaultTask */
+osThreadId_t defaultTaskHandle;
+const osThreadAttr_t defaultTask_attributes = {
+  .name = "defaultTask",
+  .stack_size = 128 * 4,
+  .priority = (osPriority_t) osPriorityNormal,
+};
+
+/* Private function prototypes -----------------------------------------------*/
+/* USER CODE BEGIN FunctionPrototypes */
+
+/* USER CODE END FunctionPrototypes */
+
+void StartDefaultTask(void *argument);
+
+void MX_FREERTOS_Init(void); /* (MISRA C 2004 rule 8.1) */
+
+/**
+  * @brief  FreeRTOS initialization
+  * @param  None
+  * @retval None
+  */
+void MX_FREERTOS_Init(void) {
+  /* USER CODE BEGIN Init */
+
+  /* USER CODE END Init */
+
+  /* USER CODE BEGIN RTOS_MUTEX */
+  /* add mutexes, ... */
+  /* USER CODE END RTOS_MUTEX */
+
+  /* USER CODE BEGIN RTOS_SEMAPHORES */
+  /* add semaphores, ... */
+  /* USER CODE END RTOS_SEMAPHORES */
+
+  /* USER CODE BEGIN RTOS_TIMERS */
+  /* start timers, add new ones, ... */
+  /* USER CODE END RTOS_TIMERS */
+
+  /* USER CODE BEGIN RTOS_QUEUES */
+  /* add queues, ... */
+  /* USER CODE END RTOS_QUEUES */
+
+  /* Create the thread(s) */
+  /* creation of defaultTask */
+  defaultTaskHandle = osThreadNew(StartDefaultTask, NULL, &defaultTask_attributes);
+
+  /* USER CODE BEGIN RTOS_THREADS */
+  /* add threads, ... */
+  /* USER CODE END RTOS_THREADS */
+
+  /* USER CODE BEGIN RTOS_EVENTS */
+  /* add events, ... */
+  /* USER CODE END RTOS_EVENTS */
+
+}
+
+/* USER CODE BEGIN Header_StartDefaultTask */
+/**
+  * @brief  Function implementing the defaultTask thread.
+  * @param  argument: Not used
+  * @retval None
+  */
+/* USER CODE END Header_StartDefaultTask */
+void StartDefaultTask(void *argument)
+{
+  /* USER CODE BEGIN StartDefaultTask */
+  /* Infinite loop */
+  for(;;)
+  {
+    osDelay(1);
+  }
+  /* USER CODE END StartDefaultTask */
+}
+
+/* Private application code --------------------------------------------------*/
+/* USER CODE BEGIN Application */
+
+/* USER CODE END Application */
+

Core/Src/gpio.c

@@ -0,0 +1,73 @@
+/* USER CODE BEGIN Header */
+/**
+  ******************************************************************************
+  * @file    gpio.c
+  * @brief   This file provides code for the configuration
+  *          of all used GPIO pins.
+  ******************************************************************************
+  * @attention
+  *
+  * Copyright (c) 2023 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.
+  *
+  ******************************************************************************
+  */
+/* USER CODE END Header */
+
+/* Includes ------------------------------------------------------------------*/
+#include "gpio.h"
+
+/* USER CODE BEGIN 0 */
+
+/* USER CODE END 0 */
+
+/*----------------------------------------------------------------------------*/
+/* Configure GPIO                                                             */
+/*----------------------------------------------------------------------------*/
+/* USER CODE BEGIN 1 */
+
+/* USER CODE END 1 */
+
+/** Configure pins as
+        * Analog
+        * Input
+        * Output
+        * EVENT_OUT
+        * EXTI
+*/
+void MX_GPIO_Init(void)
+{
+
+  GPIO_InitTypeDef GPIO_InitStruct = {0};
+
+  /* GPIO Ports Clock Enable */
+  __HAL_RCC_GPIOC_CLK_ENABLE();
+  __HAL_RCC_GPIOF_CLK_ENABLE();
+  __HAL_RCC_GPIOA_CLK_ENABLE();
+  __HAL_RCC_GPIOB_CLK_ENABLE();
+
+  /*Configure GPIO pin Output Level */
+  HAL_GPIO_WritePin(LD2_GPIO_Port, LD2_Pin, GPIO_PIN_RESET);
+
+  /*Configure GPIO pin : PtPin */
+  GPIO_InitStruct.Pin = B1_Pin;
+  GPIO_InitStruct.Mode = GPIO_MODE_IT_FALLING;
+  GPIO_InitStruct.Pull = GPIO_NOPULL;
+  HAL_GPIO_Init(B1_GPIO_Port, &GPIO_InitStruct);
+
+  /*Configure GPIO pin : PtPin */
+  GPIO_InitStruct.Pin = LD2_Pin;
+  GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
+  GPIO_InitStruct.Pull = GPIO_NOPULL;
+  GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
+  HAL_GPIO_Init(LD2_GPIO_Port, &GPIO_InitStruct);
+
+}
+
+/* USER CODE BEGIN 2 */
+
+/* USER CODE END 2 */

Core/Src/main.c

@@ -18,6 +18,9 @@
 /* USER CODE END Header */
 /* Includes ------------------------------------------------------------------*/
 #include "main.h"
+#include "cmsis_os.h"
+#include "usart.h"
+#include "gpio.h"
 
 /* Private includes ----------------------------------------------------------*/
 /* USER CODE BEGIN Includes */
@@ -47,6 +50,7 @@
 
 /* Private function prototypes -----------------------------------------------*/
 void SystemClock_Config(void);
+void MX_FREERTOS_Init(void);
 /* USER CODE BEGIN PFP */
 
 /* USER CODE END PFP */
@@ -83,10 +87,19 @@ int main(void)
   /* USER CODE END SysInit */
 
   /* Initialize all configured peripherals */
+  MX_GPIO_Init();
+  MX_USART2_UART_Init();
   /* USER CODE BEGIN 2 */
 
   /* USER CODE END 2 */
 
+  /* Init scheduler */
+  osKernelInitialize();  /* Call init function for freertos objects (in freertos.c) */
+  MX_FREERTOS_Init();
+
+  /* Start scheduler */
+  osKernelStart();
+  /* We should never get here as control is now taken by the scheduler */
   /* Infinite loop */
   /* USER CODE BEGIN WHILE */
   while (1)
@@ -113,7 +126,9 @@ void SystemClock_Config(void)
   RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSI;
   RCC_OscInitStruct.HSIState = RCC_HSI_ON;
   RCC_OscInitStruct.HSICalibrationValue = RCC_HSICALIBRATION_DEFAULT;
-  RCC_OscInitStruct.PLL.PLLState = RCC_PLL_NONE;
+  RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
+  RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSI;
+  RCC_OscInitStruct.PLL.PLLMUL = RCC_PLL_MUL16;
   if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
   {
     Error_Handler();
@@ -123,12 +138,12 @@ void SystemClock_Config(void)
   */
   RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK|RCC_CLOCKTYPE_SYSCLK
                               |RCC_CLOCKTYPE_PCLK1|RCC_CLOCKTYPE_PCLK2;
-  RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_HSI;
+  RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
   RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
-  RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV1;
+  RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV2;
   RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV1;
 
-  if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_0) != HAL_OK)
+  if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_2) != HAL_OK)
   {
     Error_Handler();
   }
@@ -138,6 +153,27 @@ void SystemClock_Config(void)
 
 /* USER CODE END 4 */
 
+/**
+  * @brief  Period elapsed callback in non blocking mode
+  * @note   This function is called  when TIM1 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)
+{
+  /* USER CODE BEGIN Callback 0 */
+
+  /* USER CODE END Callback 0 */
+  if (htim->Instance == TIM1) {
+    HAL_IncTick();
+  }
+  /* USER CODE BEGIN Callback 1 */
+
+  /* USER CODE END Callback 1 */
+}
+
 /**
   * @brief  This function is executed in case of error occurrence.
   * @retval None

Core/Src/stm32f3xx_hal_msp.c

@@ -70,6 +70,8 @@ void HAL_MspInit(void)
   __HAL_RCC_PWR_CLK_ENABLE();
 
   /* System interrupt init*/
+  /* PendSV_IRQn interrupt configuration */
+  HAL_NVIC_SetPriority(PendSV_IRQn, 15, 0);
 
   /* USER CODE BEGIN MspInit 1 */
 

Core/Src/stm32f3xx_hal_timebase_tim.c

@@ -0,0 +1,128 @@
+/* USER CODE BEGIN Header */
+/**
+  ******************************************************************************
+  * @file    stm32f3xx_hal_timebase_TIM.c
+  * @brief   HAL time base based on the hardware TIM.
+  ******************************************************************************
+  * @attention
+  *
+  * Copyright (c) 2023 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.
+  *
+  ******************************************************************************
+  */
+/* USER CODE END Header */
+
+/* Includes ------------------------------------------------------------------*/
+#include "stm32f3xx_hal.h"
+#include "stm32f3xx_hal_tim.h"
+
+/* Private typedef -----------------------------------------------------------*/
+/* Private define ------------------------------------------------------------*/
+/* Private macro -------------------------------------------------------------*/
+/* Private variables ---------------------------------------------------------*/
+TIM_HandleTypeDef        htim1;
+/* Private function prototypes -----------------------------------------------*/
+/* Private functions ---------------------------------------------------------*/
+
+/**
+  * @brief  This function configures the TIM1 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 = 0U;
+
+  uint32_t              uwPrescalerValue = 0U;
+  uint32_t              pFLatency;
+  HAL_StatusTypeDef     status;
+
+  /* Enable TIM1 clock */
+  __HAL_RCC_TIM1_CLK_ENABLE();
+
+  /* Get clock configuration */
+  HAL_RCC_GetClockConfig(&clkconfig, &pFLatency);
+
+  /* Compute TIM1 clock */
+      uwTimclock = HAL_RCC_GetPCLK2Freq();
+
+  /* Compute the prescaler value to have TIM1 counter clock equal to 1MHz */
+  uwPrescalerValue = (uint32_t) ((uwTimclock / 1000000U) - 1U);
+
+  /* Initialize TIM1 */
+  htim1.Instance = TIM1;
+
+  /* Initialize TIMx peripheral as follow:
+
+  + Period = [(TIM1CLK/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
+  */
+  htim1.Init.Period = (1000000U / 1000U) - 1U;
+  htim1.Init.Prescaler = uwPrescalerValue;
+  htim1.Init.ClockDivision = 0;
+  htim1.Init.CounterMode = TIM_COUNTERMODE_UP;
+  htim1.Init.AutoReloadPreload = TIM_AUTORELOAD_PRELOAD_DISABLE;
+
+  status = HAL_TIM_Base_Init(&htim1);
+  if (status == HAL_OK)
+  {
+    /* Start the TIM time Base generation in interrupt mode */
+    status = HAL_TIM_Base_Start_IT(&htim1);
+    if (status == HAL_OK)
+    {
+    /* Enable the TIM1 global Interrupt */
+        HAL_NVIC_EnableIRQ(TIM1_UP_TIM16_IRQn);
+      /* Configure the SysTick IRQ priority */
+      if (TickPriority < (1UL << __NVIC_PRIO_BITS))
+      {
+        /* Configure the TIM IRQ priority */
+        HAL_NVIC_SetPriority(TIM1_UP_TIM16_IRQn, TickPriority, 0U);
+        uwTickPrio = TickPriority;
+      }
+      else
+      {
+        status = HAL_ERROR;
+      }
+    }
+  }
+
+ /* Return function status */
+  return status;
+}
+
+/**
+  * @brief  Suspend Tick increment.
+  * @note   Disable the tick increment by disabling TIM1 update interrupt.
+  * @param  None
+  * @retval None
+  */
+void HAL_SuspendTick(void)
+{
+  /* Disable TIM1 update Interrupt */
+  __HAL_TIM_DISABLE_IT(&htim1, TIM_IT_UPDATE);
+}
+
+/**
+  * @brief  Resume Tick increment.
+  * @note   Enable the tick increment by Enabling TIM1 update interrupt.
+  * @param  None
+  * @retval None
+  */
+void HAL_ResumeTick(void)
+{
+  /* Enable TIM1 Update interrupt */
+  __HAL_TIM_ENABLE_IT(&htim1, TIM_IT_UPDATE);
+}
+

Core/Src/stm32f3xx_it.c

@@ -55,6 +55,7 @@
 /* USER CODE END 0 */
 
 /* External variables --------------------------------------------------------*/
+extern TIM_HandleTypeDef htim1;
 
 /* USER CODE BEGIN EV */
 
@@ -138,19 +139,6 @@ void UsageFault_Handler(void)
   }
 }
 
-/**
-  * @brief This function handles System service call via SWI instruction.
-  */
-void SVC_Handler(void)
-{
-  /* USER CODE BEGIN SVCall_IRQn 0 */
-
-  /* USER CODE END SVCall_IRQn 0 */
-  /* USER CODE BEGIN SVCall_IRQn 1 */
-
-  /* USER CODE END SVCall_IRQn 1 */
-}
-
 /**
   * @brief This function handles Debug monitor.
   */
@@ -164,33 +152,6 @@ void DebugMon_Handler(void)
   /* USER CODE END DebugMonitor_IRQn 1 */
 }
 
-/**
-  * @brief This function handles Pendable request for system service.
-  */
-void PendSV_Handler(void)
-{
-  /* USER CODE BEGIN PendSV_IRQn 0 */
-
-  /* USER CODE END PendSV_IRQn 0 */
-  /* USER CODE BEGIN PendSV_IRQn 1 */
-
-  /* USER CODE END PendSV_IRQn 1 */
-}
-
-/**
-  * @brief This function handles System tick timer.
-  */
-void SysTick_Handler(void)
-{
-  /* USER CODE BEGIN SysTick_IRQn 0 */
-
-  /* USER CODE END SysTick_IRQn 0 */
-  HAL_IncTick();
-  /* USER CODE BEGIN SysTick_IRQn 1 */
-
-  /* USER CODE END SysTick_IRQn 1 */
-}
-
 /******************************************************************************/
 /* STM32F3xx Peripheral Interrupt Handlers                                    */
 /* Add here the Interrupt Handlers for the used peripherals.                  */
@@ -198,6 +159,20 @@ void SysTick_Handler(void)
 /* please refer to the startup file (startup_stm32f3xx.s).                    */
 /******************************************************************************/
 
+/**
+  * @brief This function handles TIM1 update and TIM16 interrupts.
+  */
+void TIM1_UP_TIM16_IRQHandler(void)
+{
+  /* USER CODE BEGIN TIM1_UP_TIM16_IRQn 0 */
+
+  /* USER CODE END TIM1_UP_TIM16_IRQn 0 */
+  HAL_TIM_IRQHandler(&htim1);
+  /* USER CODE BEGIN TIM1_UP_TIM16_IRQn 1 */
+
+  /* USER CODE END TIM1_UP_TIM16_IRQn 1 */
+}
+
 /* USER CODE BEGIN 1 */
 
 /* USER CODE END 1 */