How to get rid of following error? Error: Illegal opcode (00000040) at pc = 0x0000000c Illegal opcode at pc = 0x0000000c

Hi,

Is the error you are getting when you try to running the code ?

Do you have hw (XDS510 or XDS560 etc.,) emulator and DSKC6713 board with you ?

I have tested your code on TI C6748 LCDK board and got the result is 30.

Yeah i get this error when i run the code. No, i don't have emulator and hardware board. Even the simple hello world program gives the same error though i am just following the example given in getting started section(hello world example)

Hi,

I don't aware about this issue and this is device specific forum,

Use http://e2e.ti.com/support/development_tools/code_composer_studio/default.aspx  this forum for CCS and simulator issues.

Have you linked the command file into this project (linker.cmd or C6713.cmd) ?

Please refer the following TI e2e posts.

http://e2e.ti.com/support/development_tools/code_composer_studio/f/81/t/145185.aspx

http://e2e.ti.com/support/dsp/tms320c6000_high_performance_dsps/f/115/t/157856.aspx

http://e2e.ti.com/support/development_tools/code_composer_studio/f/81/t/65710.aspx

Hi Arora,

I'm able to run the hello world DSP project on C6713 simulator on CCSv5.4.

I would like to suggest to use the CCS version 5.4 for simulator support.

No, I did not include linker file. Now, I included the linker file but getting a new error:

TMS320C6713: Error:   Memory Map Error: READ access by CPU to address 0x40000, which is RESERVED in Hardware.

Please see the attached linker file that i included in my project.

Hi Arora,

You don't want to include separate "linker.cmd" file into your new hello world project.

It will create automatically project and you should mention about your target & CPU type while you create new hello world CCS project.

Note: I don't see any linker cmd file in your reply.

/****************************************************************************/
/* lnk.cmd v##### */
/* Copyright (c) 1996@%%%% Texas Instruments Incorporated */
/* Usage: lnk6x <obj files...> -o <out file> -m <map file> lnk.cmd */
/* cl6x <src files...> -z -o <out file> -m <map file> lnk.cmd */
/* */
/* Description: This file is a sample linker command file that can be */
/* used for linking programs built with the C compiler and */
/* running the resulting .out file on a C620x/C670x */
/* simulator. Use it as a guideline. You will want to */
/* change the memory layout to match your specific C6xxx */
/* target system. You may want to change the allocation */
/* scheme according to the size of your program. */
/* */
/* Notes: (1) You must specivy a directory in which rts6x00.lib is */
/* located. either add a -i"<directory>" line to this */
/* file or use the system environment variable C_DIR to */
/* specify a search path for the libraries. */
/* */
/* (2) If the run-time library you are using is not named */
/* rts6200[e].lib, rts6400[e].lib, or rts6700[e].lib, be */
/* sure to use the correct name here. */
/* */
/****************************************************************************/
-c
-heap 0x2000
-stack 0x4000

/* Memory Map 1 - the default */
MEMORY
{
PMEM: o = 00000020h l = 0000ffe0h
EXT0: o = 00400000h l = 01000000h
EXT1: o = 01400000h l = 00400000h
EXT2: o = 02000000h l = 01000000h
EXT3: o = 03000000h l = 01000000h
BMEM: o = 80000000h l = 00010000h
}

/* Memory Map 0 */
/*
MEMORY
{
EXT0: o = 00000000h l = 01000000h
EXT1: o = 01000000h l = 00400000h
PMEM: o = 01400000h l = 00010000h
EXT2: o = 02000000h l = 01000000h
EXT3: o = 03000000h l = 01000000h
BMEM: o = 80000000h l = 00010000h
}
*/

SECTIONS
{
.text > PMEM
.stack > BMEM
.bss > BMEM
.cinit > BMEM
.cio > BMEM
.const > BMEM
.data > BMEM
.switch > BMEM
.sysmem > BMEM
.far > EXT2
.ppdata > EXT2
}

This is the linker command file i've included. And the error I am getting this time is:

TMS320C6713: Error: Memory Map Error: READ access by CPU to address 0x40000, which is RESERVED in Hardware.

Hi Arora,

/* Description: This file is a sample linker command file that can be */
/* used for linking programs built with the C compiler and */
/* running the resulting .out file on a C620x/C670x */
/* simulator. Use it as a guideline. You will want to */

Your linker command file seems to be belongs to different SoC C670x and not C6713 or C671x

This is my C6713.cmd (linker command)  file.

/****************************************************************************/
/*  C6713.cmd                                                               */
/*  Copyright (c) 2010 Texas Instruments Incorporated                       */
/*  Author: Rafael de Souza                                                 */
/*                                                                          */
/*    Description: This file is a sample linker command file that can be    */
/*                 used for linking programs built with the C compiler and  */
/*                 running the resulting .out file on an TMS320C6713        */
/*                 device.  Use it as a guideline.  You will want to        */
/*                 change the memory layout to match your specific C6xxx    */
/*                 target system.  You may want to change the allocation    */
/*                 scheme according to the size of your program.            */
/*                                                                          */
/****************************************************************************/

MEMORY
{
    IRAM     o = 0x00000000  l = 0x00030000  /* 192kB - Internal RAM */
    L2RAM    o = 0x00030000  l = 0x00010000  /* 64kB - Internal RAM/CACHE */
    EMIFCE0  o = 0x80000000  l = 0x10000000  /* SDRAM in 6713 DSK */
    EMIFCE1  o = 0x90000000  l = 0x10000000  /* Flash/CPLD in 6713 DSK */
    EMIFCE2  o = 0xA0000000  l = 0x10000000  /* Daughterboard in 6713 DSK */
    EMIFCE3  o = 0xB0000000  l = 0x10000000  /* Daughterboard in 6713 DSK */
}

SECTIONS
{
    .text          >  IRAM
    .stack         >  IRAM
    .bss           >  IRAM
    .cio           >  IRAM
    .const         >  IRAM
    .data          >  IRAM
    .switch        >  IRAM
    .sysmem        >  IRAM
    .far           >  IRAM
    .args          >  IRAM
    .ppinfo        >  IRAM
    .ppdata        >  IRAM
  
    /* COFF sections */
    .pinit         >  IRAM
    .cinit         >  IRAM
  
    /* EABI sections */
    .binit         >  IRAM
    .init_array    >  IRAM
    .neardata      >  IRAM
    .fardata       >  IRAM
    .rodata        >  IRAM
    .c6xabi.exidx  >  IRAM
    .c6xabi.extab  >  IRAM
}

I used your linkernfile, but still getting this error:

TMS320C6713: Error: Illegal opcode (0a646c72) at pc = 0x00000008 Illegal opcode at pc = 0x00000008

Hi Arora,

Sorry for the bad luck.

Please try to use CCSv5.5 or CCSv5.4.

Let us know if any issues comes even you use CCSv5.4

Hi,

Thanks for your help.

My program is running. What I did was: include rts6700.lib in my project and I am not including any linker file. This way I am not getting any error.

But is this the right way to do?? guide me