Gigabit Ethernet was not there in backfin so i have decided to change the processor so but firmware for the sharc may take many months to bring up that instead can i use the same code which i wrote for my sport ,UART,usb,SPI and TWI in blackfin or else do i need to change the whole code and by the way i thought using ADSP-SC58X series in my design pother than changing headers do i need change anything else please suggest me best possible to bring up my project in quick time