C2000 _c_int00 defined

Hi,

Check out these links:

 http://processors.wiki.ti.com/index.php/Accessing_c_int00

http://e2e.ti.com/support/development_tools/compiler/f/343/t/252199.aspx

http://e2e.ti.com/support/microcontrollers/c2000/f/171/t/56906.aspx

Regards,

Gautam

from Accessing _c_int00

Not using SYS/BIOS or DSP/BIOS

If you are not using DSP/BIOS, you should be able to specify the address using the linker command file. The general idea is to put the boot module (where _c_int00 is defined) into an output section of its own, then allocate that output section to a specific memory address. For example for C5000:

boot > 0x1234
{
    -l rts55.lib<boot.obj>(.text)
} 

You can change the address 0x1234 to be whatever address that you want to put the code. Probably the start of your RAM would be a good place so that the linker doesn’t have problems allocating other objects around it.

None of these links tell me anything about the location of the definition for the concerto, as far as I can tell. How should this procedure be constructed for the C2000?

Thanks,

Pat

Here is the data from my linker cmd file. I am trying to add a definite start up location for boot. How should this be done?

MEMORY

{

    CSM_ECSL_Z1     : origin = 0x00200000, length = 0x0024

    CSM_RSVD_Z1     : origin = 0x00200024, length = 0x000c

RESETISR (RX) : origin = 0x00200030, length = 0x0010

//, FILL=0xFFFFFFFF   /* Reset ISR is mapped to boot to Flash location */

    INTVECS (RX)    : origin = 0x00201000, length = 0x01B0

    FLASHLOAD (RX)  : origin = 0x00201200, length = 0x2E00  

/* For storing code in Flash to copy to RAM at runtime */

CINIT : origin = 0x00204800, length = 0x400

// test

//    FLASH (RX)      : origin = 0x00204000, length = 0x7BFD0

// seperate flash for Download file storage

    FLASH_M (RX)    : origin = 0x00205000, length = 0x3000 

    FLASH_L (RX)    : origin = 0x00208000, length = 0x4000  

    FLASH_K (RX)    : origin = 0x0020C000, length = 0x4000  

    FLASH_J (RX)    : origin = 0x00210000, length = 0x10000

    FLASH_I (RX)    : origin = 0x00220000, length = 0x10000  

    FLASH_H (RX)    : origin = 0x00230000, length = 0x10000  

    FLASH_G (RX)    : origin = 0x00240000, length = 0x10000  

    FLASH_F (RX)    : origin = 0x00250000, length = 0x10000  

    FLASH_E (RX)    : origin = 0x00260000, length = 0x10000  

    FLASH_D (RX)    : origin = 0x00270000, length = 0x4000 

    FLASH_C (RX)    : origin = 0x00274000, length = 0x4000 

    FLASH_B (RX)    : origin = 0x00278000, length = 0x4000

    FLASH_A (RX)    : origin = 0x0027C000, length = 0x3F00

//    FLASH (RX)      : origin = 0x00204000, length = 0x30000 //seperate section for NID, plus download boot stuff

//    FLASH_DLOAD (RX) : origin = 0x00240000, length = 0x30000

//

    CSM_RSVD_Z2     : origin = 0x0027FF00, length = 0x00DC

/////

    CSM_ECSL_Z2     : origin = 0x0027FFDC, length = 0x0024

//R.Liang: combine C0 and C1 into one memory C0_1

//C0 (RWX)        : origin = 0x20000000, length = 0x2000

//C1 (RWX)        : origin = 0x20002000, length = 0x2000

    C0_1 (RWX)        : origin = 0x20000000, length = 0x4000

    BOOT_RSVD (RX)  : origin = 0x20004000, length = 0x0FF8

//combine C2 and C3 into single memory C2_3

//C2 (RWX)        : origin = 0x200051B0, length = 0x0E50

//C3 (RWX)        : origin = 0x20006000, length = 0x2000

    C2_3 (RWX)        : origin = 0x200051B0, length = 0x2E50 

/////

    S0 (RWX)        : origin = 0x20008000, length = 0x2000

    S1 (RWX)        : origin = 0x2000A000, length = 0x2000

    S2 (RWX)        : origin = 0x2000C000, length = 0x2000

    S3 (RWX)        : origin = 0x2000E000, length = 0x2000

    S4 (RWX)        : origin = 0x20010000, length = 0x2000

    S5 (RWX)        : origin = 0x20012000, length = 0x2000

    S6 (RWX)        : origin = 0x20014000, length = 0x2000

    S7 (RWX)        : origin = 0x20016000, length = 0x2000

    CTOMRAM (RX)    : origin = 0x2007F000, length = 0x0800

    MTOCRAM (RWX)   : origin = 0x2007F800, length = 0x0800

}

/* Section allocation in memory */

SECTIONS

{

    .intvecs:   > INTVECS

    .resetisr:  > RESETISR

.cinit: > CINIT

.text   :   > FLASH_M |FLASH_L | FLASH_K | FLASH_J | FLASH_I | FLASH_H

.const  :   > FLASH_M |FLASH_L | FLASH_K | FLASH_J | FLASH_I | FLASH_H

/*.cinit  :   > FLASH_M |FLASH_L | FLASH_K | FLASH_J | FLASH_I | FLASH_H */

.pinit  :   > FLASH_M |FLASH_L | FLASH_K | FLASH_J | FLASH_I | FLASH_H

.dload : > FLASH_G | FLASH_F |FLASH_E | FLASH_D | FLASH_C | FLASH_B | FLASH_A

    .vtable :   > C0_1

.data   :   > C0_1

.bss    :   > C2_3

.sysmem :   > C0_1

.stack  :   > C0_1

    .z1secvalues  :   >  CSM_ECSL_Z1

    .z1_csm_rsvd  :   >  CSM_RSVD_Z1

    .z2secvalues  :   >  CSM_ECSL_Z2

    .z2_csm_rsvd  :   >  CSM_RSVD_Z2

GROUP

    {

      ramfuncs

{

-

l F021_API_CortexM3_LE.lib

}     

     }        

LOAD = FLASHLOAD,

RUN = C0_1,

LOAD_START(RamfuncsLoadStart),

LOAD_SIZE(RamfuncsLoadSize),

LOAD_END(RamfuncsLoadEnd),

RUN_START(RamfuncsRunStart),

RUN_SIZE(RamfuncsRunSize),

RUN_END(RamfuncsRunEnd),

PAGE = 0

GROUP : > MTOCRAM

    {

        PUTBUFFER 

        PUTWRITEIDX

        GETREADIDX 

    }

GROUP : > CTOMRAM

    {

        GETBUFFER :

TYPE = DSECT

        GETWRITEIDX :

TYPE = DSECT

        PUTREADIDX :

TYPE = DSECT

    }   

}

__STACK_TOP = __stack + 256;

　Thanks,

Pat

It appears that I need to add

rtsv7M3_T_le_eabi.lib : boot.obj

to my cmd file and assign a fixed location for the boot module. My approach was to place this module at the end of FLASH_J:

    FLASH_J (RX)    : origin = 0x00210000, length = 0xff00

Then create a section for the CM3 boot module:

BOOT_CM3 (RX) : origin = 0x0021ff00, length = 0x100

Then create a GROUP for the module:

GROUP : > BOOT_CM3

    {

    -l rtsv7M3_T_le_eabi.lib : boot.obj //(.text)

    }

This gives the following error:

"C:/Texas Instruments/PLUS_CCU_V6_2/plus_ccu_cm3/dsp_c28x/cfg/F28M35H52C1_m3_FreeRTOS.cmd", line 140: error #10026-D:

   expecting output section, GROUP, or UNION instead of "-"

Any suggestions, please?

Thanks,

Pat