特性：实现电机控制与霍尔传感器功能

新增电机板级支持包：基于 AT8236-MS 驱动芯片，实现了对 4 个直流电机的 PWM 控制。
实现霍尔传感器功能：用于速度测量和脉冲计数。
更新 GPIO 初始化：为霍尔传感器添加了外部中断（EXTI）配置。
修改系统时钟配置：改用高速外部时钟（HSE）并调整了锁相环（PLL）设置。
更改定时器配置：将时基生成从 TIM8 改为 TIM4。
增强 FreeRTOS 任务：实现从霍尔传感器周期性读取并更新速度数据。
更新项目配置：以反映外设使用情况和优先级的变更。

Core/Src/main.c

@@ -140,12 +140,13 @@ void SystemClock_Config(void)
   /** Initializes the RCC Oscillators according to the specified parameters
   * in the RCC_OscInitTypeDef structure.
   */
-  RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSI;
+  RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSE;
+  RCC_OscInitStruct.HSEState = RCC_HSE_ON;
+  RCC_OscInitStruct.HSEPredivValue = RCC_HSE_PREDIV_DIV1;
   RCC_OscInitStruct.HSIState = RCC_HSI_ON;
-  RCC_OscInitStruct.HSICalibrationValue = RCC_HSICALIBRATION_DEFAULT;
   RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
-  RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSI_DIV2;
-  RCC_OscInitStruct.PLL.PLLMUL = RCC_PLL_MUL16;
+  RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSE;
+  RCC_OscInitStruct.PLL.PLLMUL = RCC_PLL_MUL9;
   if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
   {
     Error_Handler();
@@ -178,7 +179,7 @@ void SystemClock_Config(void)
 
 /**
   * @brief  Period elapsed callback in non blocking mode
-  * @note   This function is called  when TIM8 interrupt took place, inside
+  * @note   This function is called  when TIM4 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
@@ -189,7 +190,7 @@ void HAL_TIM_PeriodElapsedCallback(TIM_HandleTypeDef *htim)
   /* USER CODE BEGIN Callback 0 */
 
   /* USER CODE END Callback 0 */
-  if (htim->Instance == TIM8)
+  if (htim->Instance == TIM4)
   {
     HAL_IncTick();
   }