TMS320F280049C: Question about malloc function

Dear team:

My client will encounter an exception when calling malloc function. The memory is not allocated and the return value is empty.

Moreover, the customer looked at the map file and did not find the start and end addresses of the heap.

Below is customer's cmd file:

MEMORY
{
PAGE 0: /* Program Memory */
PAGE 1: /* Data Memory */
BEGIN : origin = 0x00080000, length = 0x00000002
BOOT_RSVD : origin = 0x00000002, length = 0x00000126

/* RAMLS5 : origin = 0x0000A800, length = 0x00000800 */
/* RAMLS6 : origin = 0x0000B000, length = 0x00000800 */
/* RAMLS7 : origin = 0x0000B800, length = 0x00000800 */
RAMLS567 : origin = 0x0000A600, length = 0x00001A00

/* Flash sectors */
/* BANK 0 */
/* FLASHBANK0_SECT0 : origin = 0x00080002, length = 0x00000FFE */
FLASHBANK0_BOOT : origin = 0x00080002, length = 0x00000FFE /* remote update */
/* FLASHBANK0_SECT1 : origin = 0x00081000, length = 0x00001000 */
/* FLASHBANK0_SECT2 : origin = 0x00082000, length = 0x00001000 */
/* FLASHBANK0_SECT3 : origin = 0x00083000, length = 0x00001000 */
/* FLASHBANK0_SECT4 : origin = 0x00084000, length = 0x00001000 */
/* FLASHBANK0_SECT5 : origin = 0x00085000, length = 0x00001000 */
/* FLASHBANK0_SECT6 : origin = 0x00086000, length = 0x00001000 */
/* FLASHBANK0_SECT7 : origin = 0x00087000, length = 0x00001000 */
/* FLASHBANK0_SECT8 : origin = 0x00088000, length = 0x00001000 */
/* FLASHBANK0_SECT9 : origin = 0x00089000, length = 0x00001000 */
/* FLASHBANK0_SECT10 : origin = 0x0008A000, length = 0x00001000 */
/* FLASHBANK0_SECT11 : origin = 0x0008B000, length = 0x00001000 */
/* FLASHBANK0_SECT12 : origin = 0x0008C000, length = 0x00001000 */
/* FLASHBANK0_SECT13 : origin = 0x0008D000, length = 0x00001000 */
FLASHBANK0_CODE : origin = 0x00081000, length = 0x0000D000 /* control code */

/* FLASHBANK0_SECT14 : origin = 0x0008E000, length = 0x00001000 */
FLASHBANK0_DATA : origin = 0x0008E000, length = 0x00001000 /* constant data */

FLASHBANK0_SECT15 : origin = 0x0008F000, length = 0x000FF0
FLASHBANK0_SEC15_RSVD : origin = 0x08FFF0, length = 0x000010 /* Reserve and do not use for code as per the errata advisory "Memory: Prefetching Beyond Valid Memory" */

BOOTROM : origin = 0x003F0000, length = 0x00008000
BOOTROM_EXT : origin = 0x003F8000, length = 0x00007FC0
RESET : origin = 0x003FFFC0, length = 0x00000002

RAMM0S : origin = 0x00000128, length = 0x00000118 /* stack, on-chip RAM block M0 part */
RAMM1D : origin = 0x00000240, length = 0x000005B8 /* on-chip RAM block M0 part & M1 */
RAMM1_RSVD : origin = 0x000007F8, length = 0x00000008 /* Reserve and do not use for code as per the errata advisory "Memory: Prefetching Beyond Valid Memory" */

RAMGS0 : origin = 0x0000C000, length = 0x00002000 /**8*16K*/
RAMGS1 : origin = 0x0000E000, length = 0x00002000 /**8*16K*/
RAMGS2 : origin = 0x00010000, length = 0x00002000 /**8*16K*/
RAMGS3 : origin = 0x00012000, length = 0x00001FF8 /**8*16K*/
// RAMGS3_RSVD : origin = 0x013FF8, length = 0x000008 /* Reserve and do not use for code as per the errata advisory "Memory: Prefetching Beyond Valid Memory" */
RAMLS4 : origin = 0x0000A000, length = 0x00000600
}


SECTIONS
{
.reset : > RESET, TYPE = DSECT
codestart : > BEGIN, ALIGN(4)


GROUP
{
#if defined(SFRA_ENABLE)
.TI.ramfunc
{
-l sfra_f32_tmu_eabi.lib<sfra_f32_tmu_collect.obj> (.text)
-l sfra_f32_tmu_eabi.lib<sfra_f32_tmu_inject.obj> (.text)
}
#else
.TI.ramfunc
#endif
ramfuncs
/* Digital Controller Library functions */
dclfuncs
dcl32funcs
} LOAD = FLASHBANK0_CODE
RUN = RAMLS567,
LOAD_START(RamfuncsLoadStart),
LOAD_SIZE(RamfuncsLoadSize),
LOAD_END(RamfuncsLoadEnd),
RUN_START(RamfuncsRunStart),
RUN_SIZE(RamfuncsRunSize),
RUN_END(RamfuncsRunEnd),
ALIGN(2)

ctrlfuncs : {
}
LOAD = FLASHBANK0_CODE
RUN = RAMLS567,
LOAD_START(ctrlfuncsLoadStart),
LOAD_SIZE(ctrlfuncsLoadSize),
LOAD_END(ctrlfuncsLoadEnd),
RUN_START(ctrlfuncsRunStart),
RUN_SIZE(ctrlfuncsRunSize),
RUN_END(ctrlfuncsRunEnd),
ALIGN(2)

.text : > FLASHBANK0_CODE, ALIGN(8)
.cinit : > FLASHBANK0_CODE, ALIGN(4)
.switch : > FLASHBANK0_CODE, ALIGN(4)
.cio : > FLASHBANK0_CODE
.pinit : > FLASHBANK0_CODE, ALIGN(4)
.const : > FLASHBANK0_CODE, ALIGN(4)
.init_array : > FLASHBANK0_CODE, ALIGN(4)

.stack : > RAMM0S
.bss : > RAMM1D
.bss:output : > RAMM1D
.bss:cio : > RAMM1D
.data : > RAMM1D
.sysmem : > RAMGS1

est_data : > RAMLS4
}

SECTIONS
{
prms_data : > FLASHBANK0_DATA

GROUP
{
user_data
foc_data
}
LOAD = RAMM1D
LOAD_START(ctrlVarsLoadStart),
LOAD_SIZE(ctrlVarsLoadSize),
LOAD_END(ctrlVarsLoadEnd)

GROUP
{
sys_data
ctrl_data
motor_data
}
LOAD = RAMGS0
LOAD_START(motorVarsLoadStart),
LOAD_SIZE(motorVarsLoadSize),
LOAD_END(motorVarsLoadEnd)


GROUP
{
vibc_data
dmaBuf_data

datalog_data
graph_data

sfra_data
SFRA_F32_Data
}
LOAD = RAMGS0
LOAD_START(extVarsLoadStart),
LOAD_SIZE(extVarsLoadSize),
LOAD_END(extVarsLoadEnd)

GROUP
{
jpf_data
}
LOAD = RAMGS1
LOAD_START(jpfVarsLoadStart),
LOAD_SIZE(jpfVarsLoadSize),
LOAD_END(jpfVarsLoadEnd)
}

Is there anything wrong with that? 

Best regards