I am using a custom made Blackfin ADSP BF518F processor board for my project. I am using Visual DSP++ 5.1 version for programming. In my project i am using SSm2603 Audio Codec IC , hence for that I tired to utilise the device driver bundles along with the VisulaDSP++. But I am not able to initialise SSM2603 IC using device driver, but i was successfull in initialise SSM2603 through the code given in Power in Self test. Please suggest me why I am not able to initialise SSM2603 using device driver program.