各位专家好:
Each INTm input has a corresponding output that indicates if a low-to-high transition occurred on the input while the pending flag for that input had not yet been cleared.These outputs may be used by the interrupt controller to create an exception back to the CPU to notify the user of the missed interrupt. See the device-specific data manual to verify the device supports this feature.
上面一段话是来自CPU and Instruction Set.pdf,丢失一个中断会产生一个异常,是产生什么异常,是四类异常中的哪一类(EXCEP_exception,NMI_exception,soft_exception,internal_exception)?如果用软件编程可以产生这类异常吗,如使用汇编?
smitch jasom:
回复 Zhan Xiang:
您说的很正确,它是EXCEP_exception,这个我已经测出来了,我能不能人为的制造丢失中断的情况,比如说我连续几拍些ISR寄存器,但它进入中断只能进入一次,这种是丢失中断的情况吗?谢谢大虾