I am working on a custom board using the C6748 DSP. This board will include mDDR RAM, but having the mDDR running is not my first priority. I have other more critical functions to verify first. Is it possible to have the TI-RTOS not use the DDR memory space and have the TI-RTOS run from the 128 kb SRAM instead?
Thanks,
Tobyn
Hi Tobyn,
Sorry for the delayed response.
We can also add "linker.cmd" file into your RTOS project to mention where we can run the code.
http://e2e.ti.com/support/dsp/omap_applications_processors/f/42/t/359410.aspx?pi301055=1
Ex:
/*
* Do not modify this file; it is automatically generated from the template
* linkcmd.xdt in the ti.targets.elf package and will be overwritten.
*/
/*
* put '"'s around paths because, without this, the linker
* considers '-' as minus operator, not a file name character.
*/
-l"D:\TI_RTOS_C6000_examples_sols\Sols\Test_HWI\blink_C6000_HWI_SOL\Debug\configPkg\package\cfg\app_pe674.oe674"
-l"C:\ti\tirtos_c6000_2_00_01_23\products\uia_2_00_00_28\packages\ti\uia\sysbios\lib\release\ti.uia.sysbios.ae674"
-l"C:\ti\tirtos_c6000_2_00_01_23\products\uia_2_00_00_28\packages\ti\uia\loggers\lib\release\ti.uia.loggers.ae674"
-l"D:\TI_RTOS_C6000_examples_sols\Sols\Test_HWI\blink_C6000_HWI_SOL\src\sysbios\sysbios.ae674"
-l"C:\ti\tirtos_c6000_2_00_01_23\products\uia_2_00_00_28\packages\ti\uia\services\lib\release\ti.uia.services.ae674"
-l"C:\ti\tirtos_c6000_2_00_01_23\products\uia_2_00_00_28\packages\ti\uia\runtime\lib\release\ti.uia.runtime.ae674"
-l"C:\ti\tirtos_c6000_2_00_01_23\products\uia_2_00_00_28\packages\ti\uia\events\lib\release\ti.uia.events.ae674"
-l"C:\ti\tirtos_c6000_2_00_01_23\products\bios_6_40_01_15\packages\ti\targets\rts6000\lib\ti.targets.rts6000.ae674"
-l"C:\ti\tirtos_c6000_2_00_01_23\products\bios_6_40_01_15\packages\ti\targets\rts6000\lib\boot.ae674"
--retain="*(xdc.meta)"
--args 0x0
-heap 0x0
-stack 0x400
MEMORY
{
IROM (RX) : org = 0x11700000, len = 0x100000
IRAM (RWX) : org = 0x11800000, len = 0x40000
L3_CBA_RAM (RWX) : org = 0x80000000, len = 0x20000
DDR : org = 0xc0000000, len = 0x8000000
}
/*
* Linker command file contributions from all loaded packages:
*/
/* Content from xdc.services.global (null): */
/* Content from xdc (null): */
/* Content from xdc.corevers (null): */
/* Content from xdc.shelf (null): */
/* Content from xdc.services.spec (null): */
/* Content from xdc.services.intern.xsr (null): */
/* Content from xdc.services.intern.gen (null): */
/* Content from xdc.services.intern.cmd (null): */
/* Content from xdc.bld (null): */
/* Content from ti.targets (null): */
/* Content from ti.targets.elf (null): */
/* Content from xdc.rov (null): */
/* Content from xdc.runtime (null): */
/* Content from ti.targets.rts6000 (null): */
/* Content from ti.sysbios.interfaces (null): */
/* Content from ti.sysbios.family (null): */
/* Content from xdc.services.getset (null): */
/* Content from ti.sysbios.hal (null): */
/* Content from xdc.rta (null): */
/* Content from ti.uia.events (null): */
/* Content from ti.uia.runtime (null): */
/* Content from xdc.runtime.knl (null): */
/* Content from ti.sysbios.rts (ti/sysbios/rts/linkcmd.xdt): */
/* Content from ti.sysbios.family.c62 (null): */
/* Content from ti.sysbios.family.c64p.primus (null): */
/* Content from ti.uia.services (null): */
/* Content from ti.catalog.c6000 (null): */
/* Content from ti.catalog (null): */
/* Content from ti.catalog.peripherals.hdvicp2 (null): */
/* Content from xdc.platform (null): */
/* Content from xdc.cfg (null): */
/* Content from ti.platforms.evm6748 (null): */
/* Content from ti.sysbios (null): */
/* Content from ti.sysbios.knl (null): */
/* Content from ti.sysbios.family.c64p (ti/sysbios/family/c64p/linkcmd.xdt): */
/* Content from ti.sysbios.syncs (null): */
/* Content from ti.uia.loggers (null): */
/* Content from ti.sysbios.gates (null): */
/* Content from ti.sysbios.xdcruntime (null): */
/* Content from ti.sysbios.timers.timer64 (null): */
/* Content from ti.sysbios.utils (null): */
/* Content from ti.uia.sysbios (null): */
/* Content from configPkg (null): */
/* Content from xdc.services.io (null): */
/*
* symbolic aliases for static instance objects
*/
xdc_runtime_Startup__EXECFXN__C = 1;
xdc_runtime_Startup__RESETFXN__C = 1;
TSK_idle = ti_sysbios_knl_Task_Object__table__V + 0;
SECTIONS
{
.text: load >> DDR
.ti.decompress: load > DDR
.stack: load > DDR
GROUP: load > DDR
{
.bss:
.neardata:
.rodata:
}
.cinit: load > DDR
.pinit: load >> DDR
.init_array: load > DDR
.const: load >> DDR
.data: load >> DDR
.fardata: load >> DDR
.switch: load >> DDR
.sysmem: load > DDR
.far: load >> DDR
.args: load > DDR align = 0x4, fill = 0 {_argsize = 0x0; }
.cio: load >> DDR
.ti.handler_table: load > DDR
.c6xabi.exidx: load > DDR
.c6xabi.extab: load >> DDR
.vecs: load > DDR
xdc.meta: load > DDR, type = COPY
xdc.noload: load > DDR, type = COPY
}
