AD535 | BIOS | Booting | Bootloader | C621 | C6211 | C6415 | C671 | C6711 | C6711DSK | C6713 | CCS | Chassaing | COFF | DAT | DM64 | DM642 | DMA | DSK671 | DSK6711 | EDM | EDMA | EMIF | Emulator | EVM | EVM620 | FFT | FIR | GPIO | Halting | HPI | HWI | IDK | JTAG | LDB | LDH | LDW | Linker | LMS | LOG_printf | Matlab | McBSP | MEM_alloc | MIPS | PCI | PCM3003 | Pipeline | Profiling | QDM | Reset | ROM | RTDX | Sampling | SDRAM | Stack | TEB | THS1206 | TMS320C621 | TMS320C6416 | TMS320C6711 | TMS320C6713 | UART | Vector Table | XBUS | XDS560

Fab-

Thanks for documenting your solution, that's helpful for the group.  Yep,
Richard is
pretty good.

-Jeff
f...@yahoo.it wrote:
> 
> Hi to all.
> >I am a student and I am trying to learn using DSP with th eDSKBoard
6713.
> >I have a problem when I declare an array ( buffer1 ) in SDRAM, i.e. in
the section ‘ .my_section ‘.
> >What I have done is:
> >
> >    #pragma DATA_SECTION(buffer1,".my_section")
> >    Int16 buffer1[500000];
> >
> >Using DSP/BIOS, it creates a linker command file by default
> >( prova_6cfg.cmd ).
> >To add ‘ my_section ‘ in SDRAM, I should add a “compound
linker command file”, that has to include at the first line (-l) and the
original linker command file created by DSP/BIOS:
> >
> >    -l prova_6cfg.cmd
> >
> >    SECTIONS
> >    {
> >       .my_section >  SDRAM
> >    }
> >
> >But, when I “Rebuild All” the project, I receive a lot of
warnings and errors like as:
> >> > 
C:\Programmi\CCStudio_v3.1\MyProjects\Fab\prova_6_bis\prova_6cfg.cmd, line 81:
warning:
> >               multiple definitions of SECTION named '.vers'
> >> > 
C:\Programmi\CCStudio_v3.1\MyProjects\Fab\prova_6_bis\prova_6cfg.cmd, line 104:
warning:
> >               multiple definitions of SECTION named '.clk'
> >...      ...
> >> >    error: memory types IRAM and IRAM on page 0 overlap
> >> >    error: memory types CACHE_L2 and CACHE_L2 on page 0
overlap
> >> >    error: memory types SDRAM and SDRAM on page 0 overlap
> >...      ...
> >Why there are multiple definitions and memory overlaps?
> >Another thing that I do not understand is the fact that when I delete
the first line (-l prova_6cfg.cmd) of the compound linker command file, the
program compiles and goes well, but only when it uses few memory resources. But,
it should not be a conflict with 2 linker command files?
> >Then, when the program uses a lot of memory resources, it gives
errors:
> >> >    error: can't allocate .buffer1, size 001f3c00 (page 0) in
SDRAM (avail:
> >            00024c00)
> >> >    error: errors in input - ./Debug/prova_6.out not built
> >
> >Can someone help me to allocate a buffer in SDRAM (off-chip RAM) using
the “compound linker command file” or better with the Configuration
Tool of DSP/BIOS?
> >
> >Thanks a lot in advance.
> >
> >Best regards
> >
> >Fab
> >
> > Hi to all.
> 
> The problem is resolved and I explain how for all beginners (like me)...
> 
> First, I have added the C code:
> 
>     #pragma DATA_SECTION(buffer1,".my_section")
>     Int16 buffer1[500000];
> 
> Then, I have added to my project my linker command file with 'my_section':
> 
>     SECTIONS
>     {
>         .text     > IRAM
>         .far      > IRAM
>         ...
>         .cio      > IRAM
>         .my_section > SDRAM
>     }
> 
> Then:
> 
> 1. open the *.cdb file
> 2. MEM - Memory Section manager
> 3. Properties
> 4. Compiler Sections
> 5. Select    User .cmd File...
> 6. Save *.cdb file e Rebuild
> 
> I must thank Richard Williams for his aid!
> 
> Bye
> 
> Fab

(You need to be a member of c6x -- send a blank email to c6x-subscribe@yahoogroups.com )