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uClinux detects less RAM memory than I have

Honored Contributor II

Hi all, 


Can anyone explain me why uClinux detects less RAM memory than I have? I have a 16 MBytes SDRAM, but uClinux can see just 12,2 MBytes. I apologize if this is a stupid question. 


I already tried to force "mem=16M" in <Processor type and features> --> <Default kernel command string>, but with no results. 


Thanks in advance  


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