Hi,
I am trying to understand the memory reservation and usage of RAM for stack and heap.
In the IAR .map file
we can see that the stats presented at the end of compilation
Q1) 7.5kb of 8kb RAM is used for XDATA memory , what happens to the the remaining memory, is it used for stack or heap?
212 855 bytes of CODE memory (+ 47 149 range fill )
32 bytes of DATA memory (+ 81 absolute )
7 479 bytes of XDATA memory
192 bytes of IDATA memory
8 bits of BIT memory
454 bytes of CONST memory
Q2) Here stack is mentioned in 2 places
XSTACK and ISTACK, how are the different? when are they used?
XSTACK XDATA 00000001 - 00000400 400 rel 0 XDATA_Z XDATA 00000401 - 0000100E C0E rel 0 XDATA_I XDATA 0000100F - 00001135 127 rel 0 <XDATA_N> 1 XDATA 00001136 - 00001D37 C02 rel 0 <XDATA_ROM_C> 1 CONST 00008000 - 000081C5 1C6 rel 0 ISTACK IDATA 00000040 - 000000FF C0 rel 0
Q3) in the build commands there are 2 stack macros defined, how are the different? when are they used?
# -D_PDATA_STACK_SIZE=0x80 # # -D_XDATA_STACK_SIZE=0x400 #
Q4) Are there any resources available to detect stack overflow in CC2530?
I have gone through the https://wwwfiles.iar.com/8051/webic/doc/EW8051_CompilerGuide.pdf but was unable to understand these differences.
Would be great to have a simpler explanation to start with
and understand in more details with reference of any resource that you may have?
