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Hii all.This time I'm struck with the ADC problem.My code is running successfully.I'm using a ready-made board of LPC2148 which has a potentiometer connected with its pin 13 of the MCU i.e., AD0.1.The potentiometer is used to supply various analog voltage to the pin 13. Now the problems are -- 1:->the result of the ADC conversion of a predefined voltage is not coming in the AD0DR1 register..but its coming in the global result register i.e., in the AD0GDR. I dont know why this is happening 2:->I'm sending the result of ADC conversion to P1.16 to P1.23 which has LED connection to it..and the pattern of LED blinking is rightfully going with the ADC result.If i power up the development board with a predefined analog volatage(say 2V) the result is coming accordingly..but now if i change the value of the potentiometer(say to 3V) then the new result isn't coming..and the result of 2V continues to blink at the LEDs.If I reset the board or switch on the board after switching it off then the right value of 3V is showing up..what should i do