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Original question:

TMS320F28335: How much of a given function is copied to RAM from Flash by #pragma CODE_SECTION(insert_function_name_here...

TMS320F28335: TMS320F28388D:

Wen Li
Expert 8511 points

Part Number: TMS320F28335
Other Parts Discussed in Thread: C2000WARE

If I want to load some functions of "driverlib" to the RAM, what should I do?

For example, I am using the function "SCI_writeCharArray()" which is "..\driverlib\sci.h" of C2000ware.

What will be the #pragma CODE_SECTION(???, ".TI.ramfunc") ?

Thanks and regards

Wen Li

  • 0
    TI__Mastermind 32695 points

    Hi Wen Li,

    If you are using the sci.c file directly, instead of using the prebuilt driverlib.lib, you can add the pragma as follows in the sci.h/.c file:

    #pragma CODE_SECTION(SCI_writeCharArray, ".TI.ramfunc")

    If you are using driverlib.lib, you can update the linker cmd as follows to make all SCI functions as ramfuncs:

       GROUP
   {
	   .TI.ramfunc
	   { -l driverlib.lib<sci.obj>(.text)}

   }	LOAD = FLASH3,
	    RUN = RAMLS0,
	    LOAD_START(RamfuncsLoadStart),
	    LOAD_SIZE(RamfuncsLoadSize),
	    LOAD_END(RamfuncsLoadEnd),
	    RUN_START(RamfuncsRunStart),
	    RUN_SIZE(RamfuncsRunSize),
	    RUN_END(RamfuncsRunEnd),
	    ALIGN(8)

    Regards,

    Veena