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CCS/TMS320F280049C: Make rts2800_fpu32.lib run in RAM section

Horst Essig
Prodigy 20 points
Part Number: TMS320F280049C

Tool/software: Code Composer Studio

Dear TI Team,

I have a runtime problem in "Release" Mode. When all my code runs in Flash memory space, the runtime of my code is too slow to work.

So i inserted the following lines in *.cmd file:

   .TI.ramfunc      : LOAD = FLASH_BANK0_SEC1_2,
                         RUN = RAMLS3456,
                         LOAD_START(_RamfuncsLoadStart),
                         LOAD_SIZE(_RamfuncsLoadSize),
                         LOAD_END(_RamfuncsLoadEnd),
                         RUN_START(_RamfuncsRunStart),
                         RUN_SIZE(_RamfuncsRunSize),
                         RUN_END(_RamfuncsRunEnd),
                         PAGE = 0, ALIGN(4)

   .TI.ramfunc2      : LOAD = FLASH_BANK0_SEC3_4,
                         RUN = RAMGS2,
                         LOAD_START(_Ramfuncs2LoadStart),
                         LOAD_SIZE(_Ramfuncs2LoadSize),
                         LOAD_END(_Ramfuncs2LoadEnd),
                         RUN_START(_Ramfuncs2RunStart),
                         RUN_SIZE(_Ramfuncs2RunSize),
                         RUN_END(_Ramfuncs2RunEnd),
                         PAGE = 0, ALIGN(4)

".TI.ramfunc" i used for time-critical functions and ".TI.ramfunc2" for some user functions.

After that change my application works most of time good, but sometimes the calculated value in my measuring process is not correct.

If my application runs in debug mode (all code is executed in RAM) the calculated value is always correct. So I suspect that i had to copy the rts2800_fpu32.lib code to a RAM section, too.

I tried to do this with the following code lines in the *.cmd file:

RTS2800_FPU32:

   {

        rts2800_fpu32.lib(.econst)

        rts2800_fpu32.lib(.text)

   }                   LOAD = FLASH_BANK0_SEC7,

                         RUN = RAMGS3,

                         LOAD_START(_Ramfuncs3LoadStart),

                         LOAD_SIZE(_Ramfuncs3LoadSize),

                         LOAD_END(_Ramfuncs3LoadEnd),

                         RUN_START(_Ramfuncs3RunStart),

                         RUN_SIZE(_Ramfuncs3RunSize),

                         RUN_END(_Ramfuncs3RunEnd),

                         PAGE = 0, ALIGN(4)

 

But than i get the following error message:

"../28004x_generic_flash_lnk.cmd", line 114: error #10008-D: cannot find file "rts2800_fpu32.lib"

The path to the library is correct , i think.

 Because without the erroneous lines in the *.cmd file the rts2800_fpu32.lib code is linked to the following flash sections:

.text.1    0    00081f50    000010af    
                  00081f50    0000057c     measure.obj (.text)
                  000824cc    000004e8     host.obj (.text)
                  000829b4    00000495     f28004x_defaultisr.obj (.text:retain)
                  00082e49    00000107     global.obj (.text)
                  00082f50    0000009c     rts2800_fpu32.lib : fd_add28.asm.obj (.text)
                  00082fec    00000010     f28004x_pievect.obj (.text)
                  00082ffc    00000002     rts2800_fpu32.lib : pre_init.c.obj (.text)
                  00082ffe    00000001                       : startup.c.obj (.text)

.text.2    0    00084cb4    0000034b    
                  00084cb4    000002f5     f28004x_sysctrl.obj (.text)
                  00084fa9    00000056     rts2800_fpu32.lib : boot28.asm.obj (.text)

.text.3    0    00085298    00000d64    
                  00085298    00000487     test.obj (.text)
                  0008571f    0000036e     f28004x_dma.obj (.text)
                  00085a8d    000002df     test.obj (.text:retain)
                  00085d6c    00000251     rts2800_fpu32.lib : e_log10.c.obj (.text)
                  00085fbd    00000031                       : atoi.c.obj (.text)
                  00085fee    0000000e                       : fd_sub28.asm.obj (.text)

.text.4    0    00086660    00000999    
                  00086660    00000222     f28004x_gpio.obj (.text)
                  00086882    00000204     hv.obj (.text)
                  00086a86    000000f5     main.obj (.text)
                  00086b7b    000000ef     adc.obj (.text)
                  00086c6a    000000d1     temperature.obj (.text)
                  00086d3b    000000c5     f28004x_spi.obj (.text)
                  00086e00    000000b5     vca.obj (.text)
                  00086eb5    0000008b     rts2800_fpu32.lib : fd_div28.asm.obj (.text)
                  00086f40    00000083                       : fd_mpy28.asm.obj (.text)
                  00086fc3    0000002d     spi.obj (.text)
                  00086ff0    00000009     rts2800_fpu32.lib : _lock.c.obj (.text)

.text.5    0    00087000    00000436    
                  00087000    0000007f     parameter.obj (.text)
                  0008707f    00000072     dma.obj (.text)
                  000870f1    00000061     f28004x_adc.obj (.text)
                  00087152    0000005c     f28004x_cputimers.obj (.text)
                  000871ae    00000055     laser.obj (.text)
                  00087203    00000046     hvPwm.obj (.text)
                  00087249    0000002a     rts2800_fpu32.lib : fd_cmp28.asm.obj (.text)
                  00087273    0000002a                       : l_div28.asm.obj (.text)
                  0008729d    00000029                       : exit.c.obj (.text)
                  000872c6    00000028     f28004x_piectrl.obj (.text)
                  000872ee    00000024     cpld.obj (.text)
                  00087312    00000024     rts2800_fpu32.lib : cpy_tbl.c.obj (.text)
                  00087336    00000023                       : fd_tofsfpu32.asm.obj (.text)
                  00087359    0000001e                       : memcpy.c.obj (.text)
                  00087377    0000001d                       : i_tofd28.asm.obj (.text)
                  00087394    0000001c                       : fs_tofdfpu32.asm.obj (.text)
                  000873b0    0000001c                       : l_tofd28.asm.obj (.text)
                  000873cc    0000001a     error.obj (.text)
                  000873e6    00000019     rts2800_fpu32.lib : args_main.c.obj (.text)
                  000873ff    00000018                       : ll_aox28.asm.obj (.text)
                  00087417    00000016                       : ul_tofd28.asm.obj (.text)
                  0008742d    00000009                       : fd_neg28.asm.obj (.text)

Can you tell my what i made wrong ?

Regards,

Horst Essig

 

 

Can you tell me what to do ?

  • 0
    TI__Expert 6795 points

    Hi,

    Can you try giving the complete path of rts2800_fpu32.lib path such as c:\ti\ccs910\ccs\tools\compiler\ti-cgt-c2000_18.12.2.LTS\lib\rts2800_fpu32.lib?

    In the project properties of "File search path" you may find both the library name and path are provided. Similar path is needed to be mentioned in the linker command file if the library is not in the default project folder.

    Hope this helps.

    Thanks,

    Katta

  • 0
    TI__Genius 10845 points

    Hi,

    You need to use --library option as shown below while defining sections for libraries. Refer to TI Linker command File primer for more details.

    http://software-dl.ti.com/ccs/esd/documents/sdto_cgt_Linker-Command-File-Primer.html

    RTS2800_FPU64:
{

--library=rts2800_fpu64_eabi.lib(.text)

} LOAD = FLASH3,

RUN = RAMGS3,

LOAD_START(_Ramfuncs3LoadStart),

LOAD_SIZE(_Ramfuncs3LoadSize),

LOAD_END(_Ramfuncs3LoadEnd),

RUN_START(_Ramfuncs3RunStart),

RUN_SIZE(_Ramfuncs3RunSize),

RUN_END(_Ramfuncs3RunEnd),

ALIGN(4)

    Thanks

    Vasudha

  • 0 in reply to Rajaravi Krishna Katta
    Prodigy 20 points

    Hi,

    the problem was not the path. I find a hint in another post, that i had to leave some code in flash memory and only copying the remaining functions.

    I had managed this with the following lines inserted in the *.cmd file:

       rts2800_fpu32_FLASH: > FLASH_BANK0_SEC7, PAGE = 0
       {
         rts2800_fpu32.lib <boot28.asm.obj> (.text)
         rts2800_fpu32.lib <exit.c.obj> (.text)
         rts2800_fpu32.lib <args_main.c.obj> (.text)
         rts2800_fpu32.lib <pre_init.c.obj> (.text)
         rts2800_fpu32.lib <startup.c.obj> (.text)
       }

      rts2800_fpu32_RAM :    LOAD = FLASH_BANK0_SEC7,
                             RUN = RAMLS2,
                             LOAD_START(_FpuLibLoadStart),
                             LOAD_SIZE(_FpuLibLoadSize),
                             LOAD_END(_FpuLibLoadEnd),
                             RUN_START(_FpuLibRunStart),
                             {
                              rts2800_fpu32.lib <*> (.text)
                             }
                             RUN_SIZE(_FpuLibRunSize),
                             RUN_END(_FpuLibRunEnd),
                             PAGE = 0, ALIGN(4)

    But unfortunately my runtime problem already exists.

    I am trying to copy all other functions in RAM sections, now.

    I hope i will find the function which is responsible for the runtime problem.

    Regards,

    Horst Essig