TMS320C6657: IBL debugging in CCS failed

Hi Eyal,

1. This issue looks weird, if you set a break point after configureGPIO() weather the debugger halts at the point?

2. Try this steps,
A. Connect with DSP Core0
B. Init with gel file
C. Load and run the ibl image.

Thank you.

Hi Rajasekaran K,

2. that is exactlly what I'm doing.
the running of the confgiureGPIO() function cause the debugger to run some code regading SPI tranfser. It shoulddnt be there.
In addition to that, the code at the beginning (the 4 lines doing the initialization of the iblStatus - lines 456-459 in my first image), when running step by step (step over) does not runs as 4 seperated steps.

Eyal,

Just wanted to understand the setup and requirements,

Is there a reason for debugging the IBL source code on your case? What is the boot mode of your end application?

Thank you.

Hello Rajasekaran K,

Our custom borad has only SPI nor flash connected to SPI CS0 of the C6657. We don't have any I2C prom. I would like to use the IBL mechanism (using iblInit and iblMain) all located in the *SPI nor*. I'm having problem to do so.
I have read the data of the SPI NOR flash in the EVM (C6657 Eval Board) and found out that the flash conatainonly thr ELF file.
But when I'm looking on the iblInit app (under the MCSDK) i have found that it looking for iblMain on the flash.

1) First the problem regarding the debugging of iblInit in the CCS was solved, the problem was that when running the makefile
under C:\ti\mcsdk_2_01_02_06\tools\boot_loader\ibl\src\make it should be running with the option "DEBUG=yes".

2) Regarding my overall problem, is it possible to run the IBL mechanism using the only the NOR flash?
a) modified version of iblInit will be load from the flash.
b) it runs, configure the PLL and DDR based on the iblStructure configured internally.
c) it loads from flash a modified version of iblMain and runs it.
d) the modified version of iblMain will load my ELF application adn runs it.

3) can you please explain these last few line in the end of iblInit

==================

/* Pass control to the boot table processor */
iblBootBtbl (bFxnTbl, &entry);

if (btblWrapEcode != 0) {
iblStatus.iblFail = ibl_FAIL_CODE_BTBL_FAIL;
for (;;);
}

/* jump to the exit point, which will be the entry point for the full IBL */
exit = (void (*)())entry;
(*exit)();

=====================

Is it the load of the iblMain from nor and then runs it using (*exit)() ?

Thank you
Eyal