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Tivaware grlib with GNU compiler

Christophe Cloutier-Tremblay
Intellectual 265 points
Other Parts Discussed in Thread: ENERGIA

Hi, 

I imported a project from energia to CCS6. The compiler is GNU Linaro (can't change it).

I am trying to link the Tivaware Grlib so i can use a library for a LCD/TOUCH display. I am able to get the library going on the TI V5.2.5 compiler but not under the GNU (linaro).

Any tutorial or key steps on acessing the Grlib via GNU compiler would be much appreciate.

Thanks

  • 0
    Intellectual 265 points
    Note : I followed : processors.wiki.ti.com/.../Using_GCC_with_Tiva_in_CCSv6

    But I get the error :
    Description Resource Path Location Type
    error: projet.out uses VFP register arguments, C:/ti/TivaWare_C_Series-2.1.2.111/driverlib/gcc\libdriver.a(adc.o) does not projet C/C++ Problem
    error: projet.out uses VFP register arguments, C:/ti/TivaWare_C_Series-2.1.2.111/driverlib/gcc\libdriver.a(cpu.o) does not projet C/C++ Problem
    error: projet.out uses VFP register arguments, C:/ti/TivaWare_C_Series-2.1.2.111/driverlib/gcc\libdriver.a(gpio.o) does not projet C/C++ Problem
    error: projet.out uses VFP register arguments, C:/ti/TivaWare_C_Series-2.1.2.111/driverlib/gcc\libdriver.a(interrupt.o) does not projet C/C++ Problem
  • 0 in reply to Christophe Cloutier-Tremblay
    TI__Guru**** 173310 points

    Christophe Cloutier-Tremblay said:
    error: projet.out uses VFP register arguments, C:/ti/TivaWare_C_Series-2.1.2.111/driverlib/gcc\libdriver.a(adc.o) does not projet C/C++ Problem

    The error indicates a mismatch between the floating-point ABI used for building the project and the one that the driverlib was built for.

    If you look at your CCS Project Properties->GNU Compiler->Runtime, you will likely see the -mfloat-abi option set to "hard". The "hard" setting allows generation of floating-point instructions and uses FPU-specific calling conventions. However, it appears the driverlib was not built for that setting. 

    To resolve the error, try setting the -mfloat-abi option in your project to either "soft" or "softfp". Here is a link I found with a bit of information about these options.