[En-Nut-Discussion] Need Tools to measure Rom and memory Usage

Harald Kipp harald.kipp at egnite.de
Sun Jun 20 21:52:50 CEST 2004

At 14:59 18.06.2004 +0100, you wrote:
>After a few week working on Nut/Os, i still no idea how to measure memory
>and rom usage and how much it left.

There are three _basic_ types of memory (actually
there are more):

1. Code space
2. Data space used by variables
3. Data space used for heap memory

1 + 2 can be found in the linker's map file.
bss_end marks the end of RAM used by program
variables. The rest is allocated by the heap
manager and NutHeapAvailable() returns the
number of bytes available.


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