I use EZDSP kit , TMS320F28335 . In my project I need 128k x 16 memory to be assigned for dynamic memory allocation (malloc) . so I dedicated the external SARAM for this purpose. I wrote the following lines in the .cmd file
MEMORY
{.
.
ALLOCZONE : origin = 0x200000, length = 0x020000
}
SECTIONS
{
.
.
.esysmem : > ALLOCZONE, PAGE = 1
}
when I dynamically allocate memory by malloc in the following statement:
x=(short*) malloc (0x200);
while whatching the (x) variable, the watch window shows that x = 0x200002 instead of 0x200000 . this means that I can not use the full 128k size. I will always have a shortage of 2 bytes.
When I looked at the map file I found this :
.esysmem 1 00200000 00020000 UNINITIALIZED
00200000 00000001 rts2800_fpu32.lib : memory.obj (.esysmem)
00200001 0001ffff --HOLE--
it seems that 1 or 2 bytes are reserved for rts2800_fpu32.lib . Any clue how to get rid of rts2800_fpu32.lib annoyance ? because these evil 2 bytes always lead to the failure of the allocation.
