I am in trouble with LS 1021 A interrupt handling being unresponsive. While repeating interrupts from GPIO, the core seems to stop responding for about 200 μs. Even if I stop processing OS, middleware, all my firmware and test it by just keeping interrupting, the same phenomenon will occur, so worry about any mistakes in the hardware configuration There. (Currently purchasing software packages prepared by some OS vendors and using them). Do you have advice on similar events or how to deal with it?