TMS320F28335: F28335 EBSS SIZE

Ivan Petric

Part Number: TMS320F28335

Hello,

I am working on a project which includes FFT and it would be good for me to use array of 4096 elements.

When I compile, I get error that ebss size is not enough. I went to f28335.cmd file and I see that ebss is on RAML4 which has length = 0x001000.

As I understood for compiler for my array I need 0x001080 size.

Can I somehow change ebss size? (maybe add two RAM memories together or something like that). Or is there maybe some other solution to my problem?

Thanks for answer,

Ivan.

over 8 years ago

0 Christopher Chiarella over 8 years ago

TI__Mastermind 30255 points

Ivan

Yes, you can either split across multiple memory or combine memory ranges in the linker.
Refer to these wikis:
processors.wiki.ti.com/.../C28x_Compiler_-_Understanding_Linking
processors.wiki.ti.com/.../Linker_Command_File_Primer

Best Regards
Chris

0 Ivan Petric over 8 years ago in reply to Christopher Chiarella

Prodigy 120 points

Thanks for quick answer,

I looked at example and found way to split ebss in RAML4 and RAML5 but it still doesnt work. (I even tried splitting it in every RAM location).
// .ebss : >> RAML4 | RAML5 |RAML6 PAGE = 1

I still get the same error.

I would really appreciate it if you could help me out here. (Do I need to change ebss size somewhere in CCS?)

Thanks in advance!
Ivan.

0 Christopher Chiarella over 8 years ago in reply to Ivan Petric

TI__Mastermind 30255 points

Ivan

In this case, combine ram sections in the linker and assign ebss to this new section.
Example: Comment out RAML4 and RAML5 in the MEMORY part of the linker, then create a RAML4_L5 with the combined length of those two sections and assign .ebss : > RAML4_L5, PAGE = 1

Best Rgards
Chris

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TMS320F28335: F28335 EBSS SIZE