Re: [avr-gcc-list] Re: placing a variable in flash

[E. Weddington]

Alan Kilian wrote:

> > > Say I place the Oscillator Calib. byte at 0x1fff. How can retreive it in my
> > > program? I have to 'tell' GCC to look for it at (byte)location 0x1fff; which
> > > means I need to have a variable(or const) located at 0x1fff.
> > >      
>
>
>  Are you trying to set the oscillator calibration register to some
>  value you determined at compile time?
>
>  If so, how about this code?
>
>  #define CALIBRATION 0x10    // For example
>
>  #include <avr/io.h>
>
>  main () {
>      outb(OSCCAL, CALIBRATION);
>  }
>
>  

Don't use the outb, inb, outp, inp macros. They are all deprecated. Use 
direct access, such as:

OSCCAL = CALIBRATION;