Linking issue in OMAP-L138 DSP+ARM9 LCDK with SYSBIOS to drive StarterWare

YeuShyr Wu

Other Parts Discussed in Thread: SYSBIOS, OMAPL138

Hello

Yesterday, I just repeated what Sam had done (of this thread) last year.

http://e2e.ti.com/support/dsp/omap_applications_processors/f/42/t/259301.aspx

First, I have created a SYS/BIOS (v6.4) project (as simple as a "hello" RTOS code, a Timer only) for LCDKOMAPL138's ARM core, and it worked just fine (with a Timer spinning correctly). This proved the backbone TI-RTOS was working. Then, I tried pulling in another known good StarterWare (1.10.04.01) 'gpio' sample project with some initialization functions sitting in the main(), prior to entering the BIOS_start(). The result is almost the same: my LCDKOMAPL138 crashes at the PSCModuleControl function, only at different address HWREG(0x01E27000 + offset).

1) Why SYSBIOS stop working once I add StarterWare? Is there any comment from TI or any pioneers? Thank you!

My guessing is that I should do some reconfiguration on RTOS’s .cfg file, but I do not see any problem about memory conflict like in a linker command file (no .cmd file anyway). As I tried to edit the .cfg file, I simply got two empty columns [Package Name and CPU Core]. I was not allowed to do any edit/view for .cfg reconfiguration. Thus, we could not trace how the system has crashed and we have no access to edit/view it.

2) How do I manage the .cfg file (or any .cmd if needed) for RTOS to work with StarterWare)?

Please help!

Thank you!

YeuShyr

over 11 years ago

0 Titusrathinaraj Stalin over 11 years ago

TI__Guru** 116100 points

Hi YeuShyr,

I'm able to build & run the SYSBIOS with starterware code stuffs.

I'm not getting any issue as you like "LCDKOMAPL138 crashes at the PSCModuleControl function, only at different address HWREG(0x01E27000 + offset)."

Please find the attachment of the tested project which has "hello world SYSBIOS code with starterware DSP LED code", and this code has been tested on C6748 LCDK board.

Note:

I ran this test on DSP core.

2480.Test_SYSBIOS.zip

Please attach your code or send your code to my email ID (x0213399@ti.com)

0 Titusrathinaraj Stalin over 11 years ago in reply to Titusrathinaraj Stalin

TI__Guru** 116100 points

Hi,

Thanks for your files.

I understood that you need to run SYSBIOS code with starterware code stuffs in ARM core.

1) If LCDK board, What platform have you select while you creating the project ?

I hope it is "evm.omapl138" and not lcdk

2) Did you get any exception like below while you running ?

[ARM9_0] Exception occurred in ThreadType_Main.
Main handle: 0x0.

If yes, You have create memory for PSC registers

Please refer the following which helps.

http://e2e.ti.com/support/embedded/tirtos/f/355/p/200390/712854.aspx

0 YeuShyr Wu over 11 years ago in reply to Titusrathinaraj Stalin

Prodigy 160 points

Hello Titus,

1) We did selected "evm.omapl138" and not lcdk, for the platform.

2) We did not encounter any "exception" issue, so we had no such message ("[ARM9_0] Exception occurred in ...").

Our LCDKOMAPL138 board crashed once it ran to following code:

HWREG(baseAdd + PSC_MDCTL(moduleId)) = (flags & PSC_MDCTL_NEXT);

where baseAdd = 0x01E27000, moduleId = 3

and

if I hit [suspend], then I found the code looping forever in this area of Exception_asm.asm:

/****************************************************

ti_sysbios_family_arm_exc_Exception_excHandlerAsm__I:

.asmfunc

stmfd sp!, {r0-r12} ; save r4-r12 while we're at it

mrc p15, #0, r12, c5, c0, #0 ; read DFSR into r12

stmfd sp!, {r12} ; save DFSR

mrc p15, #0, r12, c5, c0, #1 ; read IFSR into r12

stmfd sp!, {r12} ; save IFSR

mrc p15, #0, r12, c6, c0, #0 ; read DFAR into r12

stmfd sp!, {r12} ; save DFAR

mrc p15, #0, r12, c6, c0, #2 ; read IFAR into r12

stmfd sp!, {r12} ; save IFAR

****************************************************/

Furthermore, I had been trying to add another section to the external memory in the "edit platform" as mentioned in:

http://e2e.ti.com/support/embedded/tirtos/f/355/p/200390/712854.aspx

But I could not pull down any column for editing.

Please advise. Thank you!

YeuShyr

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Linking issue in OMAP-L138 DSP+ARM9 LCDK with SYSBIOS to drive StarterWare