Need to jump from bootloader to downloaded executable file

This should be pretty easy to do.

There are different ways to write a linker command file, but for the TI linker and TMS570 you might have something like what is pasted below.

You can either:

 a) change the origin of FLASH0 for the Mathworks project,  so that it starts after your bootloader.    (Make sure to reduce the length too).

 b) in the SECTIONS area where you see FLASH0 | FLASH1 just change this to FLASH1 only

If your linker command file is very different and you want us to look at it then pls. post and we'll make a suggestion.

MEMORY

{

    VECTORS (X)  : origin=0x00000000 length=0x00000020

    FLASH0  (RX) : origin=0x00000020 length=0x0017FFE0

    FLASH1  (RX) : origin=0x00180000 length=0x00180000

    STACKS  (RW) : origin=0x08000000 length=0x00001500

    RAM     (RW) : origin=0x08001500 length=0x00026b00

}

SECTIONS

{

    .intvecs : {} > VECTORS

    .text    : {} > FLASH0 | FLASH1

    .const   : {} > FLASH0 | FLASH1

    .cinit   : {} > FLASH0 | FLASH1

    .pinit   : {} > FLASH0 | FLASH1

    .bss     : {} > RAM

    .data    : {} > RAM

}

Hi,

I did the same way you mentioned above. But, i didn't understand what you are trying to say? First i will make you clear, I have two linker command files. One which i use to flash the bootloader in Flash Bank 0 through CCS and the other linker file which i have to flash my executable (FLD file) to Flash Bank 1 through Target Link tool.

Now in which linker file you want me to make these changes?

and

you mention in point (a) as change the origin of FLASH0 for the Mathworks project. Please give me more explanation for this.

Sorry, i couldn't place the linker file here.

Thanks and Regards

Gowdham Natarajan

Hi Natarajan,

If I understand correctly, you want to link your Matlab program such that it loads and executes from Flash Bank 1.   Whereas you have your bootloader always in Flash Bank 0?

If that's correct, then you should change the linker command file for your Matlab code. (executable) not your bootloader.

To confirm are you using TI's hex conversion utility to convert from EABI to SREC?   Are you using the default --motorola=3 or -m3 command line option such that the S record is generated with 32-bit addresses?   If you're not sure, but can paste your first couple of lines from SREC here I can tell you.

Also, I assume you are not trying to relocate the SREC before executing.   In other words, you are using the bootloader only to flash the SREC into the device through some serial port link...   But once the SREC is flashed you're intending to execute it in place.   Is that correct?

Last, do you see any lines like Load = or Run = in your linker command file?   Reason is it is possible to specify these differently,  and that might make your SREC still try to load at address 0 even if you run at a higher address.   If you don't see these lines, then the load and run addresses should be the same;  which is what you'd want if you're going to execute the image in place.

Best Regards,
Anthony

Hi Anthony,

Thanks for understood clearly. As you said, i made the modification in my Linker command file for MATLAB code, but still the issue remains same.

Yeah, I am sure. am using TI utility.

Also, I am not using any load = or Run = in my linker file.

I pasted memory block and sections block of the linker file.

/*----------------------------------------------------------------------------*/
/* Linker Settings                                                            */

--retain="*(.intvecs)"

/*----------------------------------------------------------------------------*/
/* Memory Map                                                                 */

MEMORY
{
    VECTORS (X)  : origin=0x00000000 length=0x00000020
/*    FLASH0  (RX) : origin=0x00000020 length=0x001FFFE0 */
    FLASH1  (RX) : origin=0x00080000 length=0x00080000
/*    FLASH2  (RX) : origin=0x00100000 length=0x00080000
    FLASH3  (RX) : origin=0x00180000 length=0x00080000
    STACKS  (RW) : origin=0x00000000 length=0x00001300*/
    RAM     (RW) : origin=0x08000000 length=0x00006D00

}

/*----------------------------------------------------------------------------*/
/* Section Configuration                                                      */

SECTIONS
{
    .intvecs : {} > FLASH1
    .text    : {} > FLASH1 /*FLASH0 | FLASH1 | FLASH2 | FLASH3*/
    .const   : {} > FLASH1 /*> FLASH0 /*| FLASH1 | FLASH2 | FLASH3*/
    .cinit   : {} > FLASH1 /*> FLASH0 /*| FLASH1 | FLASH2 | FLASH3*/
    .pinit   : {} > FLASH1 /*> FLASH0 /*| FLASH1 | FLASH2 | FLASH3*/
    .bss     : {} > RAM /*FLASH0 /*RAM*/
    .data    : {} > RAM /*FLASH0 /*RAM*/

}

Thanks and Regards

Gowdham Natarajan

Hello Gowdham, 

Is this issue still open/un-resolved?