Placing _c_int00 in specific location using liker command file.

Steve Runion

According to the method http://processors.wiki.ti.com/index.php/Accessing_c_int00 I am attempting to force _c_init00 in a specific location for use with a custom bootloader. In my linker command file I have added

 SECTIONS {
   .text:_c_int00 > 0x300000
 }

to place the _c_int00 for my SYS/BIOS application and the very beginning of the internal flash on the TMS32028335. This is the sanctioned method according to the referenced link.

However, when I check to the map file to confirm that _c_int00 is where I desire to place it, it is shown to sit at address 0x00320d9d.

What might I be doing wrong?

over 12 years ago

0 George Mock over 12 years ago

TI__Guru**** 249860 points

This ...

Steve Runion said:
SECTIONS {
.text:_c_int00 > 0x300000
}

is not the syntax recommended in that wiki article. The wiki article says to use ...

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

But you need to replace the library name rts55.lib with the name of the RTS library you use.

This forum thread may also be useful.

Thanks and regards,

-George

0 Steve Runion over 12 years ago in reply to George Mock

Intellectual 960 points

It's not?

0 George Mock over 12 years ago in reply to Steve Runion

TI__Guru**** 249860 points

Oops, sorry. I overlooked the SYS/BIOS part of your post.

I think my suggested solution is still correct. All the same, I'm checking into it.

Thanks and regards,

-George

0 Karl Wechsler over 12 years ago in reply to George Mock

TI__Mastermind 20805 points

The wiki page applies to the C6000 and not the C2800. I updated the wiki and filed a bug asking that we place the c_int00 in a subsection of .text similar to how it is done for the C6000.

Until this bug is fixed, you can employ the following workaround. Add the following code to your .cmd file. Update the path to point to the right place. And change '28FP' to '28L' if you are using a fixed point 28x device.

    boot : > 0x3D8000 PAGE = 0
    {
        -l"C:\ti\ccsv5_3_0_00042\xdctools_3_24_02_30\packages\ti\targets\rts2800\lib\boot.a28FP" <boot_cg.o28FP> (.text)
    }

0 Steve Runion over 12 years ago in reply to Karl Wechsler

Intellectual 960 points

That worked, with a corrected path that is. Thanks for the help. Case closed.

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Placing _c_int00 in specific location using liker command file.