On Oct 6, 2009, at 7:24 AM, Isaac Marino Bavaresco wrote:

> Indeed, your heap must be declared as a normal variable (big array of
> char) so the compiler and linker locate it properly.

This is the easy way to do things, but of course it won't correct for  
suddenly switching to a different PIC with more RAM.  Compiler/linker  
combinations are usually pretty good about defining some magic symbols  
(_edata for gcc, for instance) that indicate the end of the pre- 
allocated data space.  If you combine that with detecting or "knowing"  
where the stack is, and how much memory actually exists, you can get  
away without having the array...

BillW
  
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