Can't place TEXTSEG in SDRAM?

MikeH

DSP/BIOS v5.41.13.42

C5515EVM

I would like to run my code from SDRAM. However, when I place the .text section in SDRAM using the config script, the linker still places the .text section in SARAM. Can someone spot what is wrong with my config

utils.loadPlatform("ti.platforms.ezdsp5505");

/* The following DSP/BIOS Features are enabled. */
bios.enableRealTimeAnalysis(prog);
/*bios.enableRtdx(prog);*/
bios.enableTskManager(prog);

bios.MEM.instance("VECT").base = 0x000100;
bios.MEM.instance("DARAM").base = 0x000180;
bios.MEM.instance("DARAM").len = 0x7e7f;
bios.MEM.instance("SARAM").base = 0x008000;
bios.MEM.instance("SARAM").len = 0x20000;
bios.MEM.create("SDRAM");
bios.MEM.instance("SDRAM").base = 0x028000;
bios.MEM.instance("SDRAM").len = 0x3d8000;

bios.MEM.NOMEMORYHEAPS = 0;
bios.MEM.instance("SDRAM").createHeap = 1;
bios.MEM.instance("SDRAM").heapSize = 0x12800;
bios.MEM.TEXTSEG = prog.get("SDRAM");
bios.MEM.BIOSOBJSEG = prog.get("SDRAM");
bios.MEM.MALLOCSEG = prog.get("SDRAM");

bios.LOG.create("trace");
bios.PRD.create("ToggleLed");
bios.PRD.instance("ToggleLed").order = 2;
bios.PRD.instance("ToggleLed").fxn = prog.extern("toggleLED");
bios.PRD.instance("ToggleLed").period = 500;
bios.HWI.instance("HWI_INT8").useDispatcher = 1;
bios.HWI.instance("HWI_INT8").fxn = prog.extern("HWI_I2S_DMA_isr");
bios.SEM.create("SEM_EndOfFrame");
bios.TSK.instance("TSK_idle").order = 1;
bios.TSK.create("TSK_ProcessFrame");
bios.TSK.instance("TSK_ProcessFrame").order = 3;
bios.TSK.instance("TSK_ProcessFrame").fxn = prog.extern("ProcessFrame");
bios.PRD.instance("ToggleLed").order = 1;

// !GRAPHICAL_CONFIG_TOOL_SCRIPT_INSERT_POINT!

prog.gen();

...and from my map file

.text 0 00010000 [ 00008000 ] 0003d8b0 *

over 13 years ago

0 Sasha Slijepcevic over 13 years ago

TI__Mastermind 37985 points

MikeH,
if you are working in CCS, check the directory Debug (or Release) for a file with the extension .cmd. Open it in a text editor and check if there is a line that allocates .text in that file. It should look similar to this:
.text: {} > SDRAM
If you are not using CCS, the cmd file should be in the same directory as your TCF script.
The next thing to check is whether you are passing another linker command file on your linker command line. If there is another .cmd file, check if that file allocates .text. Let me know what you find, and then we'll know where to look further. It would also help if you paste here your linker command line.

0 Steven Connell over 13 years ago

TI__Mastermind 45025 points

MikeH,

What version of the compiler are you using?

I imported the BIOS hello example and then applied your *.tcf file changes to it. I saw it move .text into SDRAM:

******************************************************************************
TMS320C55x Linker PC v4.4.1
******************************************************************************

...

        name            origin    length      used     unused   attr    fill
                        (bytes)   (bytes)    (bytes)   (bytes)
---------------------- -------- --------- -------- -------- ---- --------
VECT                  00000200   00000100 00000100 00000000 RWIX
DARAM                 00000300   0000fcfe 00005862 0000a49c RWIX
SARAM                 00010000   00040000 00000000 00040000 RWIX
SDRAM                 00050000   007b0000 0002509c 0078af64 RWIX

...

00075000 .text

See attached. 7608.text_sdram.zip

Steve

0 MikeH over 13 years ago in reply to Steven Connell

Guru 15580 points

My bad. I have been jumping between Debug and Release. If I actually look at the *correct* .map file I can see that the linker is correctly allocating memory segments.

Thanks for the help guys.

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Can't place TEXTSEG in SDRAM?