Hi 志成 项,
非常感谢使用NXP产品，很高兴为你提供技术支持！
1) I/O中断请参考SDK软件库中的input_interrupt例程
2) 对于这个问题，我不太清楚理解是否跟你一致，很多IDE都是支持代码运行在QSPI中调试的，所以我不太理解你说的的‘退出调试模式’是如何发生的，请解释一下。
Have a great day,
TIC
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