CCS/TMS320F28388D: Boot from FLASH not working

NAGESH RK

Part Number: TMS320F28388D
Other Parts Discussed in Thread: C2000WARE

Tool/software: Code Composer Studio

Hello,

I am using the TMS320F28388D controller, I am raising the issue on the linking error faced when code_start is added to have the code boot from FLASH.

I want the start address to be as per my linker cmd file which is 0x080000 but when compiled with CCS IDE Version: 10.1.0.00010, Compiler version TI v20.2.1.LTS I do not see in the map file which has to be addressed as required but it generated with a different address as shown in the below image.

Because of this Issue, I am not able to boot the code from FLASH address 0x080000.

Please refer to the attached word document which has screenshots.

TMS320F28388D controller issue.docx

When I use code_start I get below errors, Let me know how to fix these errors

undefined first referenced
symbol in file
--------- ----------------
__TI_decompress_lzss
__TI_decompress_none
_c_int00 ./cdstrbr.obj

error #10234-D: unresolved symbols remain
warning #10063-D: entry-point symbol other than "_c_int00" specified: "code_start"
error #10010: errors encountered during linking; "GBL_F28388D_RTL.out" not built

I also observed when I use the example program I don't see this issue, this happen when we create a new project .

thanks,

Nagesh

over 5 years ago

0 Baskaran Chidambaram over 5 years ago

TI__Genius 17370 points

you need to call _c_int00 from code_start.

Refer f2838x_codestartbranch.asm from C2000ware for reference. Also look at the flash linker command file provided in C2000Ware.

0 NAGESH RK over 5 years ago in reply to Baskaran Chidambaram

Expert 2260 points

Hi ,

I am using the code start branch asm file and _c_int00 is called in it.

You can also recreate this scenario.

Please create a new CCS Project C28XX[C2000] with target TMS320F28388D controller. and include the files from the example whichever you can and try to compile it by adding code_start in Symbol Management.

Please try and let me know if you are able to compile successfully . and how to fix the above-mentioned linking errors.

thanks,

Nagesh

0 Baskaran Chidambaram over 5 years ago in reply to NAGESH RK

TI__Genius 17370 points

please share your linker command file, ccs project file and asm file.

Also have you included any run time library ?and are you compiling in elf or coff format ?

0 NAGESH RK over 5 years ago in reply to Baskaran Chidambaram

Expert 2260 points

Hi,

I am attaching a sample project created by me which has the flash linker command file, this also has similar error , its a empty main project.

TEST_PRJ.zip

0 Baskaran Chidambaram over 5 years ago in reply to NAGESH RK

TI__Genius 17370 points

Everything seems to be fine except the runtime configuration as highlighted in below snapshot. with this change the project builds.

0 NAGESH RK over 5 years ago in reply to Baskaran Chidambaram

Expert 2260 points

hi,

I am not able to view the image you have posted, can you repost is again .

thanks,

Nagesh

0 Baskaran Chidambaram over 5 years ago in reply to NAGESH RK

TI__Genius 17370 points

0 NAGESH RK over 5 years ago in reply to Baskaran Chidambaram

Expert 2260 points

Hi ,

Thank your suggestion worked and its compiling fine. But I have a couple of questions

1. As per the image Runtime support library is given as <automatic> which library does it take, and why is it required to give. as I need to understand for my program where we will be using the custom library, so that I can include those specific required files into my custom library.

2. what is the use of libc.a .

thanks,

Nagesh

0 Baskaran Chidambaram over 5 years ago in reply to NAGESH RK

TI__Genius 17370 points

the c run time lib will be used. i dont think source code is released along with the lib.

libc.a -this is a standard lib - just google it.

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CCS/TMS320F28388D: Boot from FLASH not working