//TIM14 PWM初始化//PWM输出初始化//arr:自动重装值 psc:时钟预分频数。voidTIM14_PWM_Init(u32 arr,u32 psc) { GPIO_InitTypeDef GPIO_InitStructure; TIM_TimeBaseInitTypeDef TIM_TimeBaseStructure; TIM_OCInitTypeDef TIM_OCInitStructure; RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM14,ENABLE);//TIM14时...