Hi Guys,
I had setup the interrupts in LPC214x. I had given Interrupt priority slot 0 to a RTC function for reading and displaying time every time when the RTC interrupt occurs. The RTC interrupt is generated every second. The RTC interrupt works fine. Now when I introduce a external Interrupt for which I had given a slot priority of 15, I see that when the key is kept pressed the RTC interrupt is not serviced. The system is in a hanged state. But when key is released again the system is back to normal state. I had set the interrupt on the external pin for active high state with a level sensitive. When the key is pressed the pin is driven to high state. Why is the RTC ISR not serviced. What could be the reason. Should I do any other settings?