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Compiler/TMS320F280049: Warning for conversion in TMS320F280049 CLA usage

Benjamin Zhou
Expert 4000 points
Part Number: TMS320F280049

Tool/software: TI C/C++ Compiler

Hi Team,

  My customer reported a warning while using conversion in CLA usage, could you kindly give comments on how to solve this issue?

warning : #70D integer conversion resulted in truncation. 

 Details shown as attached, expect for your reply, thanks.

Best Regards

BenjaminTMS320F280049 CLA Warning.docx

  • 0
    TI__Mastermind 32995 points

    This warning can be suppressed. The compiler is warning that a 32-bit address is being converted to a 16-bit address. However, CLA program addresses must be 16-bits or less. This is an architecture limitation.

    You can do the below:

    //
    // Suppressing #770-D conversion from pointer to smaller integer
    // The CLA address range is 16 bits so the addresses passed to the MVECT
    // registers will be in the lower 64KW address space. Turn the warning
    // back on after the MVECTs are assigned addresses
    //
    #pragma diag_suppress=770

    //
    // Compute all CLA task vectors
    // On Type-2 CLAs the MVECT registers accept full 16-bit task addresses as
    // opposed to offsets used on older Type-0 CLAs

    CLA_mapTaskVector(CLA1_BASE, CLA_MVECT_1, (uint16_t)&Cla1Task1);
    CLA_mapTaskVector(CLA1_BASE, CLA_MVECT_2, (uint16_t)&Cla1Task2);

    #pragma diag_warning=770

    Regards,

    sal