stm32f103能够同时用三个定时器吗？好心人解答一下！

zylxcu

stm32f103芯片：关于定时器的问题
如果配置三个定时器的话NVIC_PriorityGroupConfig(NVIC_PriorityGroup_x)是不是应该配成NVIC_PriorityGroupConfig(NVIC_PriorityGroup_2)？？？例如：
    NVIC_PriorityGroupConfig(NVIC_PriorityGroup_2);
    NVIC_InitStructure.NVIC_IRQChannel = TIM2_IRQn;
    NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0;
    NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0;
    NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
    NVIC_Init(&NVIC_InitStructure);
 
    NVIC_InitStructure.NVIC_IRQChannel = TIM3_IRQn;
    NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 1;
    NVIC_InitStructure.NVIC_IRQChannelSubPriority = 1;
    NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
    NVIC_Init(&NVIC_InitStructure);
 
   
    NVIC_InitStructure.NVIC_IRQChannel = TIM4_IRQn;
    NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 2;
    NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0;
    NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
    NVIC_Init(&NVIC_InitStructure);
并且    NVIC_PriorityGroupConfig(NVIC_PriorityGroup_2);只用写一次就行，而不用每个中断都写？？

zylxcu

没人吗

zylxcu

不要沉了。这个东西不懂啊！

gotofly21

我的6个一起用啊，这个没限制吧，做出来不用不是浪费？

gotofly21

我的6个一起用啊，这个没限制吧，做出来不用不是浪费？