Hello, I have stored data sucessfully in flash memory but when I erase to burn a new program, my saved data at a particular location in flash memory also gets erased. I want the data to stay and want to erase other sectors. The bottom line is the sector contains my data should not erase and other sectors containing code, data and constants should erase. I am using µvison3 with ULINK. can any one pass on hints, how to configure sector wise erasing. thanks Sridhar