求GD32F103的TIM3_ETR示例程序

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tylerxiang| 实习生

楼主 | 2023-12-11 10:24 | 只看该作者回帖奖励

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本帖最后由 tylerxiang 于 2023-12-11 10:26 编辑

下面代码，使用STM32的HAL库，将TIM3时钟源设置为TIM3_ETR(PD2)管脚。  TIM_ClockConfigTypeDef sClockSourceConfig = {0};
  TIM_MasterConfigTypeDef sMasterConfig = {0};

  /* USER CODE BEGIN TIM3_Init 1 */

  /* USER CODE END TIM3_Init 1 */
  htim3.Instance = TIM3;
  htim3.Init.Prescaler = 0;
  htim3.Init.CounterMode = TIM_COUNTERMODE_UP;
  htim3.Init.Period = 1;
  htim3.Init.ClockDivision = TIM_CLOCKDIVISION_DIV1;
  htim3.Init.AutoReloadPreload = TIM_AUTORELOAD_PRELOAD_DISABLE;
  if (HAL_TIM_Base_Init(&htim3) != HAL_OK)
  {
Error_Handler();
  }
  sClockSourceConfig.ClockSource = TIM_CLOCKSOURCE_ETRMODE2;
  sClockSourceConfig.ClockPolarity = TIM_CLOCKPOLARITY_NONINVERTED;
  sClockSourceConfig.ClockPrescaler = TIM_CLOCKPRESCALER_DIV1;
  sClockSourceConfig.ClockFilter = 0;
  if (HAL_TIM_ConfigClockSource(&htim3, &sClockSourceConfig) != HAL_OK)
  {
Error_Handler();
  }
  sMasterConfig.MasterOutputTrigger = TIM_TRGO_RESET;
  sMasterConfig.MasterSlaveMode = TIM_MASTERSLAVEMODE_DISABLE;
  if (HAL_TIMEx_MasterConfigSynchronization(&htim3, &sMasterConfig) != HAL_OK)
  {
Error_Handler();
  }

请教，如何用gd32的hal库实现同样功能？

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