Break on assertion with Tiva microcontroller and CCS

Julian S

Prodigy 200 points

Hi,

I found the article

http://processors.wiki.ti.com/index.php/Software_Breakpoints_in_the_IDE

and I wonder if there is an equivalent instruction available for the Tiva microcontrollers.

I also found a post here

http://e2e.ti.com/support/microcontrollers/msp430/f/166/t/246378.aspx

which concerns the MSP430. There the opcode 0x4343 is used to place SW breakpoints. But it seems the TI v5.1.6 compiler I am using doesn't know a "_op_code()" function...

In the TivaWare examples, the ASSERT macro does not break. Is there any way to do this? I don't like to use while(1) loops....

Thanks in advance,

Julian

over 11 years ago

0 Amit Ashara over 11 years ago

TI__Guru**** 244400 points

Hello Julian,

For cortex M4 it is BKPT Instruction.

Regards

Amit

0 Julian S over 11 years ago in reply to Amit Ashara

Prodigy 200 points

Hello Amit,

thanks for your quick reply. I placed a

__asm("BKPT\n");

in my code, but the target is not actually halted there.... With

__asm("BKPT #0\n"); or

__asm("BKPT 0\n");

it doesn't even compile.

Is BKPT supported by the inline assembler?

Or does the TI compiler have an intrinsic like __breakpoint()?

Regards,

Julian

0 Amit Ashara over 11 years ago in reply to Julian S

TI__Guru**** 244400 points

Hello Julian

Inline assembly is supported in CCS (since you mention TI Compiler). It needs to be created as a function

void
myFunc(void)
{
    //
    // Jump to the CCS C initialization routine. This will enable the
    // floating-point unit as well, so that does not need to be done here.
    //
    __asm("    bkpt    #0x0\n");
}

Regards

Amit

0 Julian S over 11 years ago in reply to Amit Ashara

Prodigy 200 points

Hello Amit,

thanks, this works. I figured out that the problem was that I didn't put a whitespace in front of bkpt.

Regards

Julian

Arm-based microcontrollers

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Break on assertion with Tiva microcontroller and CCS