TIM2无法关闭

午夜狼嚎 · 发表于 2018-8-23 16:25:18

单片机型号：STM32F103C8T6
我用TIM2做了个定时104us,但是在初始化的时候不开启，在别处开启。程序如下：
但是在初始化后，定时器并没有关闭，直接开始工作，并且能进中断。这是哪里出了问题？
void TIM2_INIT(void)
{
TIM_TimeBaseInitTypeDef TIM_InitStructure;
NVIC_InitTypeDef NVIC_InitStructure;
RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM2,ENABLE);

TIM_InitStructure.TIM_ClockDivision    = TIM_CKD_DIV1;
TIM_InitStructure.TIM_CounterMode    = TIM_CounterMode_Up;
TIM_InitStructure.TIM_Period          = 5;
TIM_InitStructure.TIM_Prescaler       = 1247;
TIM_InitStructure.TIM_RepetitionCounter = 0;
TIM_TimeBaseInit(TIM2,&TIM_InitStructure);
TIM_ITConfig(TIM2,TIM_IT_Update,ENABLE);
TIM_ClearITPendingBit(TIM2,TIM_IT_Update);
TIM_Cmd(TIM2,DISABLE);

NVIC_InitStructure.NVIC_IRQChannel                = TIM2_IRQn;
NVIC_InitStructure.NVIC_IRQChannelCmd             = ENABLE;
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 2;
NVIC_InitStructure.NVIC_IRQChannelSubPriority       = 1;
NVIC_Init(&NVIC_InitStructure);
}