TMS320F28069: Regarding diagnostic for microcontroller internals

Chandrakant Pal

Intellectual 500 points

Part Number: TMS320F28069

Hi All,

Is there any way to have a diagnostic for microcontroller for:

1.CPU integrity:Stuck CPU,Stuck ALU,RAM

2.Memory integrity: Stuck Memory,stack overflow underflow

3.Digital I/O integrity

4.ADC integrity

At run time when the application code is running.

I guesS stack overflow and underflow can be detected based on the stack pointer.But can we do it for remaining while the application is runnung??

Regards,

Chandrakant Pal

over 7 years ago

0 Chen Jiang ti over 7 years ago

TI__Genius 15935 points

Hi Chandrakant,

Sorry for late reply. Out safety software expert is out for business trip and should give you a reply early next week. Thanks for your patience.

Best regards,
Chen

0 Chandrakant Pal over 7 years ago in reply to Chen Jiang ti

Intellectual 500 points

Hi Chen,

Thanks for your reply. Waiting for safety software expert reply.
Thank you.

Regards,
Chandrakant Pal

0 Sal Pezzino over 7 years ago in reply to Chandrakant Pal

TI__Mastermind 32995 points

Hi Chandrakant,

There is a safety library available for this device which provides these tests. You will need to integrate them into your test.

www.ti.com/.../iec60730swpackages

Regards,
sal

0 Chandrakant Pal over 7 years ago in reply to Sal Pezzino

Intellectual 500 points

Hi sal,

Thank you for your reply. The library and link has helped me to write safety and testing for microcontroller.

Regards,
Chandrakant Pal

0 Sal Pezzino over 7 years ago in reply to Chandrakant Pal

TI__Mastermind 32995 points

Chandrakant,

That is great! Please verify one of TI's responses to close the thread.

Let us know if you have any more questions.

Regards,
sal

0 Chandrakant Pal over 7 years ago in reply to Sal Pezzino

Intellectual 500 points

Hi sal,

I have a question regarding STL_CPU_TEST_testCpuRegisters() function. I have used it from the stl library. When I call this function i see there is only XAR1,XAR2,XAR3 registers pushed i.e. this registers values are saved and while exiting from the function this registers value are poped and restored. I have a question why are remaining registers XAR0,XAR4,XAR5,XAR6,XAR7,ST0,ST1,XT,P,PC,IER,IFR,DBGIER registers not pushed and poped i.e. saved and restored.

Thank you

Regards,
Chandrakant Pal

0 Mitja Nemec over 7 years ago in reply to Chandrakant Pal

Genius 5885 points

This is the TI compiler ABI. Look for the chapter "Register Conventions" in TI compiler user guide (spru514)

0 Sal Pezzino over 7 years ago in reply to Chandrakant Pal

TI__Mastermind 32995 points

Chandrakant,

The compiler automatically saves these registers. See Section 7.2 and Section 7.3 in spru514

sal

0 Chandrakant Pal over 7 years ago in reply to Sal Pezzino

Intellectual 500 points

Hi sal ,Mitja,

Thank you for your reply. This help me resolve my issue.

Regards
Chandrakant

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TMS320F28069: Regarding diagnostic for microcontroller internals