定时器配置函数: 
- void MX_TIM1_Init(void)
 
 - {
 
 -   TIM_ClockConfigTypeDef sClockSourceConfig = {0};
 
 -   TIM_MasterConfigTypeDef sMasterConfig = {0};
 
 -   TIM_OC_InitTypeDef sConfigOC = {0};
 
 -   TIM_BreakDeadTimeConfigTypeDef sBreakDeadTimeConfig = {0};
 
  
-   htim1.Instance = TIM1;
 
 -   htim1.Init.Prescaler = 31;
 
 -   htim1.Init.CounterMode = TIM_COUNTERMODE_UP;
 
 -   htim1.Init.Period = 40000;
 
 -   htim1.Init.ClockDivision = TIM_CLOCKDIVISION_DIV1;
 
 -   htim1.Init.RepetitionCounter = 0;
 
 -   htim1.Init.AutoReloadPreload = TIM_AUTORELOAD_PRELOAD_DISABLE;
 
 -   if (HAL_TIM_Base_Init(&htim1) != HAL_OK)
 
 -   {
 
 -     Error_Handler();
 
 -   }
 
 -   sClockSourceConfig.ClockSource = TIM_CLOCKSOURCE_INTERNAL;
 
 -   if (HAL_TIM_ConfigClockSource(&htim1, &sClockSourceConfig) != HAL_OK)
 
 -   {
 
 -     Error_Handler();
 
 -   }
 
 -   if (HAL_TIM_PWM_Init(&htim1) != HAL_OK)
 
 -   {
 
 -     Error_Handler();
 
 -   }
 
 -   sMasterConfig.MasterOutputTrigger = TIM_TRGO_RESET;
 
 -   sMasterConfig.MasterSlaveMode = TIM_MASTERSLAVEMODE_DISABLE;
 
 -   if (HAL_TIMEx_MasterConfigSynchronization(&htim1, &sMasterConfig) != HAL_OK)
 
 -   {
 
 -     Error_Handler();
 
 -   }
 
 -   sConfigOC.OCMode = TIM_OCMODE_PWM1;
 
 -   sConfigOC.Pulse = 20000;
 
 -   sConfigOC.OCPolarity = TIM_OCPOLARITY_HIGH;
 
 -   sConfigOC.OCNPolarity = TIM_OCNPOLARITY_HIGH;
 
 -   sConfigOC.OCFastMode = TIM_OCFAST_DISABLE;
 
 -   sConfigOC.OCIdleState = TIM_OCIDLESTATE_RESET;
 
 -   sConfigOC.OCNIdleState = TIM_OCNIDLESTATE_RESET;
 
 -   if (HAL_TIM_PWM_ConfigChannel(&htim1, &sConfigOC, TIM_CHANNEL_1) != HAL_OK)
 
 -   {
 
 -     Error_Handler();
 
 -   }
 
 -   __HAL_TIM_DISABLE_OCxPRELOAD(&htim1, TIM_CHANNEL_1);
 
 -   sBreakDeadTimeConfig.OffStateRunMode = TIM_OSSR_DISABLE;
 
 -   sBreakDeadTimeConfig.OffStateIDLEMode = TIM_OSSI_DISABLE;
 
 -   sBreakDeadTimeConfig.LockLevel = TIM_LOCKLEVEL_OFF;
 
 -   sBreakDeadTimeConfig.DeadTime = 0;
 
 -   sBreakDeadTimeConfig.BreakState = TIM_BREAK_DISABLE;
 
 -   sBreakDeadTimeConfig.BreakPolarity = TIM_BREAKPOLARITY_HIGH;
 
 -   sBreakDeadTimeConfig.AutomaticOutput = TIM_AUTOMATICOUTPUT_DISABLE;
 
 -   if (HAL_TIMEx_ConfigBreakDeadTime(&htim1, &sBreakDeadTimeConfig) != HAL_OK)
 
 -   {
 
 -     Error_Handler();
 
 -   }
 
 -   HAL_TIM_MspPostInit(&htim1);
 
  
- }
 
  
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