LCDK C6748 -> tick stays 0

Ramun Schmid

Other Parts Discussed in Thread: TMS320C6748

Hello

I'm currently trying to run the Typical example on a LCDK C6748 but it seems that the system tick isn't running properly.
What I do is the following:

Import of the following project: TI Resource Explorer -> SYS/BIOS -> C6000 -> C674x Floating-point DSP -> LCDKC6748 -> Typical
Build the project
Debug the project
Add breakpoints at line 19 (System_printf("enter taskFxn()\n");) and at line 23 (System_printf("exit taskFxn()\n");)
After hitting the resume button, the program stops at the first breakpoint (-> as expected)
However, after hitting the resume button once more, the program seems to run forever and doesn't stop at the second break point.
If I pause manually, the debugger stops somewhere in the Idle_loop() and I can see a clock module with ticks=0 and a timer module:

Also, the TIMER64P0 seems to be active and its interrupt is pending:

Does anyone see what I'm doing wrong?
I'm using CCS Version: 5.5.0.00077

Any help is appreciated!

Ramun

PS: Another thing that's wired for a demo project is that I need to add System_flush() after the System_printf() functions in order to actually see the output on the Console...

over 9 years ago

0 ToddMullanix over 9 years ago

TI__Guru* 96960 points

Do you have the c6748 or the omap138? Or in other words, is there an Arm or not?

Regarding the output...we generally use SysMin which maintains a internal buffer that is only sent to the CCS console on System_flush or at exit. SysStd writes to the console but the target is halted when this happens. So realtime is out the window.

Todd

0 Ramun Schmid over 9 years ago in reply to ToddMullanix

Prodigy 60 points

Hi Todd

Thank you very much for the clarification regarding System_flush()!

I'm working with a board that's equipped with a TMS320C6748BZWT.

Ramun

0 Ramun Schmid over 9 years ago in reply to Ramun Schmid

Prodigy 60 points

Hi,

I just realized that the tick is incremented when I'm doing the following:

Pause the debugging
Manually set the PRDINTEN12 to 'disabled'
Manually set the PRDINTEN12 to 'enabled'
Press the resume button and then the susbend button

So it looks as if the PRDINTSTAT12 bit isn't reset properly...

Ramun

0 ToddMullanix over 9 years ago in reply to Ramun Schmid

TI__Guru* 96960 points

Thanks. Which version of BIOS are you using?

0 Ramun Schmid over 9 years ago in reply to ToddMullanix

Prodigy 60 points

Judging from what is selected when I import this example project, I'd say that I'm using SYS/BIOS V6.35.4.50 (see first print screen of my first post). Is there another way of determining which version I'm using?
In the TI installation directory I can find a 'bios_5_42_01_09' and a 'bios_6_35_04_50' folder...

Please do also note that I select ti.platforms.evm6748 as platform since this is the only one that shows a 6748 in its name... If I use xdc.platform.generic instead, I'm getting the following error:

0 Ramun Schmid over 9 years ago in reply to Ramun Schmid

Prodigy 60 points

Is there someone that can at least confirm that the BIOS v6 should work with the TMS320C6748?

0 Ramun Schmid over 9 years ago in reply to Ramun Schmid

Prodigy 60 points

I just realized, that everything works fine if I change the app.cfg file such that the Clock module uses the timer ID 2 or 3. If I configure it to use the timer IDs "Any", 0 or 1, the tick stays zero...

Any idea, how this behavior can be explained?

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LCDK C6748 -> tick stays 0