I cant clear the ARLK.0 bit in interrupt routine . I am trying to creat the change interrupt. But after the first interrupt program cant go out from the interrupt routine, because of ARLK.0 bit cant clear. I have not attach the file.
"the ARLK.0 bit"
How is anyone supposed to know what that is if you don't specifically state what chip you are using?!
"I have not attach the file"
Of course you haven't - this forum has no facility for attaching files!
But people who are talking about attaching documents or PM etc are quite often silently cross-posting their questions to a large number of forums which is the reason their text makes references that are not applicable - or they make assumptions that people would know what chip family they are using.