I have found one problem while compiling optiboot os in Atmel studio 6.2
here by i am attaching the image where i am getting error.
error is - F_CPU’ undeclared (first use in this function).
tools used- atmel studio version 6.2
bootloader used- optiboot( available in Arduino-1.0.5 installation folder)
OS version - windows 8
please reply if you have any idea
Thanks in advance.