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Hi, I need to use the external interrupts of the LPC932. The micro will be in sleeping mode and will be woke up only by these two events. It works fine the first time, but then it does not work any more for external interrupt 0. Why? Could it be my Port configuration on port 1, which is where these two interrupts are entered. These two pins have to be input only. IT0 = 1; //pulses will be edge triggered EX0 = 1; IT1 = 1; //pulses will be edge triggered EX1 = 1; EA = 1; //EBO = 1; //Brown Out interrupt (IEN0.5) PCONA = 0xEF; // turn off all peripherals that can be turned off PCON |= 0x12; // switch to Power Down mode while(1); Thank you!
Erik I followed the direction from the previous comments. But it does not work if I switch to Power Down Mode. However, it worked on the simulator but not in the application. Why?