如果有两个中断A和B,A的优先级高,如果当前正在执行中断B的程序,此时中断A触发,那么是先执行完中断B,再执行A,还是立刻切到A,执行完A再跳回B呢?
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如果有两个中断A和B,A的优先级高,如果当前正在执行中断B的程序,此时中断A触发,那么是先执行完中断B,再执行A,还是立刻切到A,执行完A再跳回B呢?