Re: [avr-gcc-list] Choose where the code is placed in flash memory

[E. Weddington]

On 4 Dec 2002 at 22:14, address@hidden wrote:

> 
> My question is: For what reason is it justified to lock something to a
> specific address instead of allowing the compiler/linker do it's job?
> 
> What makes this any different then using "Magic number" and global
> variables that are difficult to maintain and support?
> 
> Jeff

The biggest reason is if you are writing a bootloader. The bootloader 
code needs to reside in the NRWW section (see Atmel specs). This 
section resides at a particular high address. This address is also 
settable by fuses. So one would write bootloader code, put it in a 
user-named section and relocate this section to a fixed, specific 
address.

Eric
avr-gcc-list at http://avr1.org