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My external inteerupt not working

Heena Panchal

i m using EINT 2 on port P0.a5 on LPC 2148

here is my code ..can anyone guide me pls..

        PINSEL0 = 0x80000000;                   //Select P0.7 for EINT2
                VICIntSelect = 0x00;
                VICVectCntl1 = 0x20 | 0x10;      //EINT 2 is selected
                VICVectAddr1 = (unsigned long) intr2_srv;
                VICIntEnable = 1<<0x10;
                EXTMODE = 0x04;
                EXTPOLAR = 0x04;  // HIGH Level

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