C6000 Linker Sections

Marc48067

Expert 2000 points

Other Parts Discussed in Thread: OMAPL138

Hello,

I had a look at the linker map file of our C674x DSP code on the OMAPL138. There are 2 bios (V5_33_06) sections (.vers, .printf) of type COPY SECTION. Are these sections initialized, e.g. do I have to add them to the boot table which i create with the hex utility? What exactly does COPY SECTION mean?

Thanks in advance.....

over 16 years ago

0 Mariana over 16 years ago

TI__Mastermind 24340 points

Please see:

http://e2e.ti.com/support/dsp/tms320c6000_high_performance_dsps/f/112/p/11794/46199.aspx#46199

0 Marc48067 over 16 years ago in reply to Mariana

Expert 2000 points

Thanks for your fast answer!

The linker map file says:

MEMORY CONFIGURATION

         name               origin          length         used         unused       attr     fill
----------------------     --------           ---------        --------         --------         ----    --------
IRAM                  11800000   00040000 00024f99   0001b067   RWIX
CACHE_L1P    11e00000   00008000 00000000 00008000 RWIX
CACHE_L1D    11f00000    00008000 00000000 00008000 RWIX
L3_CBA_RAM  80000000   00020000 00000000 00020000 RWIX
DDR                   c3000000   01000000 00000000 01000000 RWIX

.vers 0 00000000 0000003c COPY SECTION
00000000 0000003c bioscfg.obj (.vers)

.printf 0 118245f9 00000059 COPY SECTION
118245f9 00000059 bioscfg.obj (.printf)

Address 0 for .vers isn't a valid RAM address! As you wrote .vers just contains date information which needn't to be transferred to DSP RAM by our loader, right?! What about .printf section? It is located on a valid RAM address. Does it have to be loaded into RAM?

0 Mariana over 16 years ago in reply to Marc48067

TI__Mastermind 24340 points

Marc said:
Address 0 for .vers isn't a valid RAM address! As you wrote .vers just contains date information which needn't to be transferred to DSP RAM by our loader, right?!

Right!

Marc said:
What about .printf section? It is located on a valid RAM address. Does it have to be loaded into RAM?

see:

http://processors.wiki.ti.com/index.php/DSP_BIOS_FAQ#Q:_Does_LOG_printf.28.29_really_loads_the_strings_to_the_target.3F_If_so.2C_what_is_the_memory_section_used.3F

Code Composer Studio™︎

Code Composer Studio forum

C6000 Linker Sections