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AM3358 NMI中断怎么使用?

Other Parts Discussed in Thread: AM3358

先请教另外一个问题,我用的AM3358,之前使用GPIO中断,但发现Linux对中断响应速度有时会达到3ms,请问这个正常吗?

出现了上面的问题后,我想用NMI中断,但不知道怎么使用,还是用request_irq()来申请中断吗,但我试过,系统启动会出错,说irq  7号向量有问题。请问对NMI应该怎么使用呢?