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TMS320F28P650DH: Unexpected warning from the cla compiler

Ralf Bartling
Expert 1205 points

Part Number: TMS320F28P650DH

Hello,
I´m writing my first code for the cla in the F28P650DH device by using the CCS Version 12.6. Now I get an unexpected warning from the cla compiler (#1173-D unknown attribute "noblocked" in f28p65x_xbar.h).

 

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How can I prevent this warning?

Thank you very much

Ralf

  • 0
    TI__Mastermind 25340 points

    Hi Ralf,

    Are you trying to include the f28p65x_xbar.h file in your .cla file? What seems to be happening is that this file wasn't written to be compiled for the CLA, so it is using compiler attributes that only the C28x compiler can recognize. You can either ignore this warning, remove the noblocked attribute from the source file, or update the source so that it compiles two different versions: one for the C28x and one for the CLA:

    #if defined(__TMS320C28X__)
extern volatile struct XBAR_REGS XbarRegs __attribute__((noblocked));
#elif defined(__TMS320C28XX_CLA__)
extern volatile struct XBAR_REGS XbarRegs;
#endif

    Best Regards,

    Delaney

  • 0 in reply to Delaney Woodward
    Expert 1205 points

    Dear Delaney,
    many thanks for your answer.

    Yes, the f28p65x_xbar.h file was included from the cla compiler source code, because we need access to the ADC and EPWM registers. I have included the following files.

    #include "cla_f28p65_shared.h"
    #include "F28x_Project.h"           // this file includes the f28p65x_xbar.h
    #include "CLAmath.h"

    I come from the F28379D device, the F28379D_xbar.h does not have the attribute extension.

    Why have the f28p65x_xbar.h file this extension?

    Thank you

    Ralf

  • 0 in reply to Ralf Bartling
    TI__Mastermind 25340 points

    Hi Ralf,

    Linked here is an explanation of what the "blocked" and "noblocked" attributes do. I'm not sure why the noblocked attribute was added for this struct specifically, I am asking our software team about this and will let you know when I have an answer.

    Best Regards,

    Delaney 

  • 0 in reply to Delaney Woodward
    Expert 1205 points

    Dear Delaney,
    I have added your suggestion in the header file and it works fine.


    Thank you

    Ralf