" wrote:

hi
I piezo connected to pin no. 16 in atmel(atmega128-16ac)
microcontroller & the piezo giving going to gives alarm I want know
what the function of pin 16 & how I can remove this alarm
any help please
thank you for any help
yar

Why do the hopeless jerks almost always post using Google ?

Dear Yar,

I suggest you 'get a clue' by reading the data sheet and learning
something about how electronics works.

Graham