TMS320F280033: code doesn't boot from flash

Hi Adrien,

Can you please share the linker cmd file for analysis?

Did you try out any examples from the SDKin flash configuration with the boot pins as "Boot from Flash"

Thanks

Aswin

Hi Aswin,

Here is the cmd file I have used.

/*
   Copyright (c) 2019-2021 by Plexim GmbH
   All rights reserved.

   A free license is granted to anyone to use this software for any legal
   non safety-critical purpose, including commercial applications, provided
   that:
   1) IT IS NOT USED TO DIRECTLY OR INDIRECTLY COMPETE WITH PLEXIM, and
   2) THIS COPYRIGHT NOTICE IS PRESERVED in its entirety.

   THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
   OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
   FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
   AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
   LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
   OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
   SOFTWARE.
 */

MEMORY
{
   BEGIN          : origin = 0x088000, length = 0x000002
   BOOT_RSVD      : origin = 0x00000002, length = 0x00000126
   RAMM0          : origin = 0x00000128, length = 0x000002D8
   RAMM1          : origin = 0x00000400, length = 0x000003F8
   // RAMM1_RSVD  : origin = 0x000007F8, length = 0x00000008 /* Reserve and do not use for code as per the errata advisory "Memory: Prefetching Beyond Valid Memory" */

   BOOTROM          : origin = 0x003F8000, length = 0x00007FC0
   SECURE_ROM       : origin = 0x003F2000, length = 0x00006000
   RESET            : origin = 0x003FFFC0, length = 0x00000002

   RAMLS	         : origin = 0x008000, length = 0x003F00
   //RAMLS0       : origin = 0x008000, length = 0x000800
   //RAMLS1       : origin = 0x008800, length = 0x000800
   //RAMLS2       : origin = 0x009000, length = 0x000800
   //RAMLS3       : origin = 0x009800, length = 0x000800
   //RAMLS4       : origin = 0x00A000, length = 0x000800
   //RAMLS5       : origin = 0x00A800, length = 0x000800
   //RAMLS6       : origin = 0x00B000, length = 0x000800
   //RAMLS7       : origin = 0x00B800, length = 0x000800
   RAMLS7_RSVD    : origin = 0x00BF00, length = 0x000100  // JTAG communication buffer

   // we do not utilize any RAMGS RAM, as this memory is used for page 0
   // by the "ram_lnk" configuration

   //RESET          : origin = 0x3FFFC0, length = 0x000002

   //BEGIN          : origin = 0x080000, length = 0x000002     // Flash Bank 0
      /* Flash sectors */
   /* BANK 0 */
   FLASH_BANK0	    : origin = 0x088002, length = 0x007FFE	/* on-chip Flash */ 
   //FLASH_BANK0_SEC0  : origin = 0x080002, length = 0x000FFE
   //FLASH_BANK0_SEC1  : origin = 0x081000, length = 0x001000
   //FLASH_BANK0_SEC2  : origin = 0x082000, length = 0x001000
   //FLASH_BANK0_SEC3  : origin = 0x083000, length = 0x001000
   //FLASH_BANK0_SEC4  : origin = 0x084000, length = 0x001000
   //FLASH_BANK0_SEC5  : origin = 0x085000, length = 0x001000
   //FLASH_BANK0_SEC6  : origin = 0x086000, length = 0x001000
   //FLASH_BANK0_SEC7  : origin = 0x087000, length = 0x001000
   // FLASH_BANK0_SEC8  : origin = 0x088000, length = 0x001000
   // FLASH_BANK0_SEC9  : origin = 0x089000, length = 0x001000
   // FLASH_BANK0_SEC10 : origin = 0x08A000, length = 0x001000
   // FLASH_BANK0_SEC11 : origin = 0x08B000, length = 0x001000
   // FLASH_BANK0_SEC12 : origin = 0x08C000, length = 0x001000
   // FLASH_BANK0_SEC13 : origin = 0x08D000, length = 0x001000
   // FLASH_BANK0_SEC14 : origin = 0x08E000, length = 0x001000
   // FLASH_BANK0_SEC15 : origin = 0x08F000, length = 0x001000

   /* BANK 1 */
   FLASH_BANK1_SEC0  : origin = 0x090000, length = 0x001000
   FLASH_BANK1_SEC1  : origin = 0x091000, length = 0x001000
   FLASH_BANK1_SEC2  : origin = 0x092000, length = 0x001000
   FLASH_BANK1_SEC3  : origin = 0x093000, length = 0x001000
   FLASH_BANK1_SEC4  : origin = 0x094000, length = 0x001000
   FLASH_BANK1_SEC5  : origin = 0x095000, length = 0x001000
   FLASH_BANK1_SEC6  : origin = 0x096000, length = 0x001000
   FLASH_BANK1_SEC7  : origin = 0x097000, length = 0x001000
   // FLASH_BANK1_SEC8  : origin = 0x098000, length = 0x001000
   // FLASH_BANK1_SEC9  : origin = 0x099000, length = 0x001000
   // FLASH_BANK1_SEC10 : origin = 0x09A000, length = 0x001000
   // FLASH_BANK1_SEC11 : origin = 0x09B000, length = 0x001000
   // FLASH_BANK1_SEC12 : origin = 0x09C000, length = 0x001000
   // FLASH_BANK1_SEC13 : origin = 0x09D000, length = 0x001000
   // FLASH_BANK1_SEC14 : origin = 0x09E000, length = 0x001000
   // FLASH_BANK1_SEC15 : origin = 0x09F000, length = 0x001000

  /* BANK 2 */
   // FLASH_BANK2_SEC0  : origin = 0x0A0000, length = 0x001000
   // FLASH_BANK2_SEC1  : origin = 0x0A1000, length = 0x001000
   // FLASH_BANK2_SEC2  : origin = 0x0A2000, length = 0x001000
   // FLASH_BANK2_SEC3  : origin = 0x0A3000, length = 0x001000
   // FLASH_BANK2_SEC4  : origin = 0x0A4000, length = 0x001000
   // FLASH_BANK2_SEC5  : origin = 0x0A5000, length = 0x001000
   // FLASH_BANK2_SEC6  : origin = 0x0A6000, length = 0x001000
   // FLASH_BANK2_SEC7  : origin = 0x0A7000, length = 0x001000
   // FLASH_BANK2_SEC8  : origin = 0x0A8000, length = 0x001000
   // FLASH_BANK2_SEC9  : origin = 0x0A9000, length = 0x001000
   // FLASH_BANK2_SEC10 : origin = 0x0AA000, length = 0x001000
   // FLASH_BANK2_SEC11 : origin = 0x0AB000, length = 0x001000
   // FLASH_BANK2_SEC12 : origin = 0x0AC000, length = 0x001000
   // FLASH_BANK2_SEC13 : origin = 0x0AD000, length = 0x001000
   // FLASH_BANK2_SEC14 : origin = 0x0AE000, length = 0x001000
   // FLASH_BANK2_SEC15 : origin = 0x0AF000, length = 0x000FF0

   //FLASH_BANK0_SEC15_RSVD     : origin = 0x0AFFF0, length = 0x000010  /* Reserve and do not use for code as per the errata advisory "Memory: Prefetching Beyond Valid Memory" */

}

SECTIONS
{
   scope            : > RAMLS, ALIGN(2)
   step             : > FLASH_BANK0, ALIGN(4)
   dispatch         : > FLASH_BANK0, ALIGN(4)

   codestart        : > BEGIN, ALIGN(4)
   .text            : > FLASH_BANK0, ALIGN(4)
   .cinit           : > FLASH_BANK0, ALIGN(4)
   .switch          : > FLASH_BANK0, ALIGN(4)

   .stack           : > RAMM1 | RAMLS

#if defined(__TI_EABI__)
   .init_array      : > FLASH_BANK0, ALIGN(4)
   .const           : > FLASH_BANK0, ALIGN(4)
   .bss             : > RAMLS
   .bss:output      : > RAMLS
   .bss:cio         : > RAMLS
   .data            : > RAMLS
   .sysmem          : > RAMLS
#else
   .pinit           : > FLASH_BANK0, ALIGN(4)
   .econst          : > FLASH_BANK0, ALIGN(4)
   .cio             : > FLASH_BANK0, ALIGN(4)
   .ebss            : > RAMLS
   .esysmem         : > RAMLS
#endif

    GROUP      : LOAD = FLASH_BANK0,
                RUN = RAMLS,
#if defined(__TI_EABI__)
                LOAD_START(RamfuncsLoadStart),
                LOAD_END(RamfuncsLoadEnd),
                RUN_START(RamfuncsRunStart),
                LOAD_SIZE(RamfuncsLoadSize),
#else
                LOAD_START(_RamfuncsLoadStart),
                LOAD_END(_RamfuncsLoadEnd),
                RUN_START(_RamfuncsRunStart),
                LOAD_SIZE(_RamfuncsLoadSize),
#endif
                ALIGN(4)
   {
      ramfuncs
      .TI.ramfunc
   }
   .reset           : > RESET, TYPE = DSECT /* not used, */
 }

It is a modified version of the default F280039 cmd file provided by Plexim as part of their C2000 code generation package. I modified it according to this discussion thread.

To the best of my knowledge, all examples in the SDK use default TI F28003x cmd file, which is not compatible with the F280033. Hence the aforementioned discussion thread.

Best regards,

Adrien

Hi Aswin,

Sorry to insist, but this matter has become very, very urgent. I am supposed to ship a working prototype to my client next week, and having to reprogram the microcontroller afer every power cylce doesn't fit the definition of "working prototype".

Moreover, if you include the original post (here), in which I now understand I was given only half of the solution to my issue, the problem has been going on for 6 months.

Please, I really need this issue fixed, and quickly !

Adrien

Hi,

A colleague found this thread, that seems to correspond to my issue.

Applying the proposed fix seems to work. However, once applied, this doesn't translate to future boards that would be programmed

--> How can this be done automatically each time a board is programmed ?

--> How can I make it transparent for my colleagues (ie is there a file somewhere that is git-able that would apply the fix) ?

Thanks in advance,

Adrien

Hi,

Any idea how I can get this done, please ?

Thanks in advance,

Adrien

Hi Adrien,

Let me loop apps experts on this.

Thanks

Aswin

Hi Matthew,

Thanks, that worked perfectly.

Best regards,

Adrien

Hi Aswin, Matthew,

Thank you for your help. Closing this case as agreed with the customer.

Best regards,
François.