Does freeMemory() observe the heap?

LR_ · **Joined:** Wed Sep 21, 2011 12:21 pm **Posts:** 38

Hi,

thanks.

If anyone is interested in printing a fine-grained representation of the memory usage, here is the code:

Code:

extern  unsigned int __data_start;
extern  unsigned int __data_end;
extern  unsigned int __bss_start;
extern  unsigned int __bss_end;
extern  unsigned int __heap_start;
extern  void *__brkval;

void printMemLayout( void )
{
   int stackVal = 0  ;
   USB.println("MEMORY LAYOUT");
   
      
   USB.print(".data:");
   USB.print((int)&__data_start,DEC);
   USB.print("-");
   USB.println((int)&__data_end,DEC);
   
   USB.print(".bss:");
   USB.print((int)&__bss_start,DEC);
   USB.print("-");
   USB.println((int)&__bss_end,DEC);
   
   USB.print("heap:");
   USB.print((int)&__heap_start,DEC);
   USB.print("-");
   USB.println((int)__brkval,DEC);

        USB.print("stack:");
   USB.print((int)&stackVal,DEC); 
   USB.print("-");
   USB.println(RAMEND,DEC);
}

Best regards
LR_

libelium-dev · **Joined:** Mon Sep 28, 2009 1:06 pm **Posts:** 7516

LR_,

thanks for sharing your code.

Regards.