How can I use exception handling within TI Compiler?

Nicolas Göddel

Hi there,

I am using the TI compiler version 5.1.9 together with Code Composer Studio 6.0.1.00040 and I want to use exception handling because a constructor does not have a return type. And it would not make sense to create a zombie object which is there but not correctly initialized.

At the moment when I try to use the keyword "throw" I get this error message: "#542 support for exception handling is disabled"
How can I enable exception handling?

over 10 years ago

0 Amit Ashara over 10 years ago

TI__Guru**** 244440 points

Hello Nicolas,

The exception handler is enabled in Cortex Architecture. The startup file has the handler routines with while(1). You would need to process the cause of the exception using the value of the NVIC_FAULTSTAT and NVIC_FAULTADDR to support exception resolution. Each exception has a definitive meaning, so handling it would be specific to the what bit(s) get set.

Regards
Amit

0 Nicolas Göddel over 10 years ago in reply to Amit Ashara

Intellectual 795 points

I am using the Tiva C Series Connected Launchpad TM4C1294XL for my projects and to learn. Is it possible to enable exception handling for this device?
And what have I to do to make it work? Is there an example anywhere? That would be nice. :)

0 Amit Ashara over 10 years ago in reply to Nicolas Göddel

TI__Guru**** 244440 points

Hello Nicolas,

You may want to look at the following example from the DK-TM4C129X

D:\ti\TivaWare_C_Series-2.1.1.71\examples\boards\dk-tm4c129x\mpu_fault

Regards
Amit

0 Nicolas Göddel over 10 years ago in reply to Amit Ashara

Intellectual 795 points

So I can not create my own exception classes which I can throw like in normal C++ code?
See here: www.cplusplus.com/.../

0 Robert Adsett over 10 years ago in reply to Amit Ashara

Guru 27665 points

Amit, I think you are confusing CPU exceptions with C++ exceptions. They are not related.

The C++ exceptions will be compiler specific (you might have to set an option to control them) and likely will take at least some additional overhead.

Question might be better addressed to compiler support. Maybe there is a FAQ on this subject?

Robert

0 Amit Ashara over 10 years ago in reply to Robert Adsett

TI__Guru**** 244440 points

Hello Robert,

You are right. May be I am confusing CPU exceptions with C++ exception and that the Compiler Support would be a better place to answer the same

Regards
Amit

0 Robert Adsett over 10 years ago

Guru 27665 points

You might try looking for keywords like EC++ or Embedded C++, IIRC that standard requires exceptions not be used.

Robert

0 Chester Gillon over 10 years ago

Guru 92251 points

Nicolas Göddel said:
How can I enable exception handling?

In the CCS Project Properties in Build -> ARM Compiler -> Advanced Options -> Language Options try ticking the "Enable C++ exception handling (--exceptions)" option.

Arm-based microcontrollers

Arm-based microcontrollers forum

How can I use exception handling within TI Compiler?