Hi,
I refer to figure 16.3, and section 16.4
16.4 Default Image Layout
Code and initial values of initialised data items are placed into first bank of Flash (as show in
memory configuration editor). During startup, MCUXpresso IDE startup code copies the data into
the first bank of RAM (as show in memory configuration editor), and zero initializes the BSS data
directly after this in memory. This process uses a global section table generated into the image
from the linker script.
Other RAM blocks can also have data items placed into them under user control, and the startup
code will also initialize these automatically. See later in this chapter for more details.
Figure 16.3. Default Memory Layout
Note: The above memory layout is simply the default used by the IDE’s managed linker script
mechanism. There are a number of mechanisms that can be used to modify the layout according
to the requirements of your actual project – such as simply editing the order of the RAM banks
in the Memory Configuration Editor. These various methods are described later in this chapter
Anyway, now I understand that the the diagram and explanation is just an example, and the behaviour depens on linker.
Thank you,
ranran
