Atmel CAVR-4 Manual De Usuario

CAVR-4

152

Descriptions of segments

AVR® IAR C/C++ Compiler

Reference Guide

Description

Holds the internal data stack. This segment and its length is normally defined in the
linker command file with the following command:

-Z(DATA)CSTACK+nn=start

-Z(DATA)CSTACK=start-end

where

is the length,

start

is the first memory location, and

end

is the last memory

location.

DIFUNCT

Holds pointers to constructor blocks in C++ code.

XLINK segment memory type

CODE

Memory space

Flash. The address range is

0x0–0xFFFF

Description

When using C++ and global objects, it is necessary to call the constructor methods of
these global objects before

main

is called.

EEPROM_AN

Variables with an absolute location in the built-in EEPROM.

XLINK segment memory type

XDATA

Memory space

EEPROM.

Description

This segment is not copied to EEPROM during system startup. Instead it is used for
programming the EEPROM during the download of the code.

Use the command line option

--eeprom_size

to set the address range for this segment;