i am doing a simple project with pic 16f72 microcontroller. the project is to blink the led which is connected to port a pin no. 2. led positive end is connected to port a pin and its negative end is gnd followed by a 330Ω resistor. pin 1 is connected to +5 v dc. After burn a program into pic microcontroller then i came to a result that led does not blink. then i have check the voltage on pin no.2 of pic16f72 then it is come to be .45v.
what the problem with that circuit? i also check the program and its output in pic simulator here i found that the overall progarm is correct....
so please help me in this problem...

 

You should post a schematic. Are you sure there is a ground hooked up properly to the LED and the PIC?

Are you using a decoupling capacitor?

Can you post you code? Be sure to include the config words, and be sure to mention what compiler you are using.