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请问6748实现中断嵌套应怎么操作，有没有相关的官方例程
有一个关于中断嵌套的帖子参考看一下。
https://e2echina.ti.com/support/processors/f/processors-forum/127304/dsp
你好 ，这个例程中等待timer2中断进来什么意思，在timer3中断服务程序中一直检测是不是产生timer2中断吗，
timer2是嵌套进来的吧。
