EXTI NVIC初始化问题

cacaoss

在做外部中断初始化时遇见这样的问题，对PB0 PB1设置成外部中断，初始化NVIC时直接写成 NVIC_InitStructure.NVIC_IRQChannel=EXTI0_IRQn|EXTI1_IRQn;  不能正常进中断
唯一的区别就是把 NVIC_InitStructure.NVIC_IRQChannel分开了，想问一下有谁知道这是为什么?

正常代码

[mw_shl_code=c,true] NVIC_InitStructure.NVIC_IRQChannel=EXTI0_IRQn; NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority=0x01; NVIC_InitStructure.NVIC_IRQChannelSubPriority=0x02; NVIC_InitStructure.NVIC_IRQChannelCmd=ENABLE; NVIC_Init(&NVIC_InitStructure); NVIC_InitStructure.NVIC_IRQChannel=EXTI1_IRQn; NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority=0x01; NVIC_InitStructure.NVIC_IRQChannelSubPriority=0x02; NVIC_InitStructure.NVIC_IRQChannelCmd=ENABLE; NVIC_Init(&NVIC_InitStructure);[/mw_shl_code]

不正常代码

[mw_shl_code=c,true] NVIC_InitStructure.NVIC_IRQChannel=EXTI0_IRQn|EXTI1_IRQn; NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority=0x01; NVIC_InitStructure.NVIC_IRQChannelSubPriority=0x02; NVIC_InitStructure.NVIC_IRQChannelCmd=ENABLE; NVIC_Init(&NVIC_InitStructure);[/mw_shl_code]

八度空间

这个一次只能初始化一个中断号

FantaSy_

那就要看channel的定义下能不能用|

hpeng1874

两个中断的抢占优先级和响应优先级一样不是冲突了？