Atmel CAVR-4 Manual De Usuario

CAVR-4

Descriptions of options

Reference Guide

For descriptions of the available memory attributes, see Table 7, Memory attributes for 
data on page 19 and Table 8, Memory attributes for functions on page 28. For a 
description of the segment name suffixes, see Segment naming, page 37.

--separate_cluster_for_

initialized_variables

--separate_cluster_for_initialized_variables

Separates initialized and non-initialized variables when using variable clustering. 
Makes the 

*_ID

 segments smaller but can generate bigger code.

--silent

--silent 

By default, the compiler issues introductory messages and a final statistics report. Use 

--silent

 to make the compiler operate without sending these messages to the standard 

output stream (normally the screen). 

This option does not affect the display of error and warning messages.

--spmcr_address

--spmcr_address address

This option sets the 

SPMCR

 address, where 

0x37

 is the default.

--strict_ansi

--strict_ansi 

By default, the compiler accepts a relaxed superset of ISO/ANSI C (see the chapter IAR 
language extensions). Use 

--strict_ansi

 to ensure that the program conforms to the 

ISO/ANSI C standard.

Note: The 

-e

 option and the 

--strict_ansi

 option cannot be used at the same time.

To set the equivalent option in IAR Embedded Workbench, select 
Project>Options>C/C++ Compiler>Language.

--string_literals_in_flash

--string_literals_in_flash

Puts "string" in the __

nearflash

 or __

farflash

 segment depending on the processor 

option.

When this option is used, library functions taking a string literal as a parameter will no 
longer be type-compatible. Use the 

*_P

 library function variants (for example 

printf_P

). See AVR–specific library functions, page 249.´