[avr-gcc-list] AVR-GCC sram variables

[Ufficio Software]

HI,

I'm developing an application using AT90S2313 (128 bytes of RAM) using AVR-GCC version 2.95.2.

My application defines 70 bytes of SRAM (global variables), but having a look to map files, the variables are allocated starting from 0x70 and some bytes variables allovates 2 bytes instead of 1.

The final result is that the stack overwrite some variables.

How ram from 0x60 to 0x70 is used by AVR-GCC compiler? Can I use this area?

How global variables are allocated? How can I modify this behaviour (if possible).

 

Thanks for help.

 

Patrizio Zelotti

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