C6678EVM: NOR Write and too big ELF files

Alberto Chessa

Hello,

I'm trying to flash (NOR) my application. The nor writer documentation say it is able to flash elf files (that must be renamed as .dat ). I run nor write from CCS but it terminate with the error:

NOR Writer Utility Version 01.00.00.02

The data file is too big to fit into the device.
Error in parsing CCS file app.dat

My elf file is 16MBytes (after stripx6)!!! This is very strange since the rom section is about 500K (core + const + tables + load copy of initialized data). I tried to convert it with the hex6x utility and I get a 1M file.

I already tried to recompile everything without debug information but it remains essentialy the same (as expected).

The executable is linked as a static image, with rom autoinitialization model. I checked all the sections size and they look ok (load copy of cada are rle compressed).

over 13 years ago

0 Sandeep Nair over 13 years ago

TI__Prodigy 595 points

Hi,

By any chance is the output a partially linked object (i.e. do you have the linker flags "--relocatable" & "--dynamic" ) ? Are you able to load & run this ELF file through CCS?

Regards

Sandeep

0 Alberto Chessa over 13 years ago in reply to Sandeep Nair

Mastermind 6670 points

Sandeep Nair said:

Hi,

By any chance is the output a partially linked object (i.e. do you have the linker flags "--relocatable" & "--dynamic" ) ? Are you able to load & run this ELF file through CCS?

Regards

Sandeep

It isn't relocatable and I can run it with CCS,

0 Sandeep Nair over 13 years ago in reply to Alberto Chessa

TI__Prodigy 595 points

Hi Alberto,

Then I'm not sure what could be the issue. One thought is that you can try to explicitly specify the linker option "--absolute_exe" if not specified.

Anyways you should probably post this question on the compiler forum at http://e2e.ti.com/support/development_tools/compiler/f/343.aspx

Regards

Sandeep

0 tscheck over 13 years ago in reply to Sandeep Nair

TI__Mastermind 23525 points

What libraries are you linking too? Are you using the debug or release .out file? Debug will have a lot of extra info, try the release version if you haven't already.

Regards,

Travis

0 Alberto Chessa over 13 years ago in reply to tscheck

Mastermind 6670 points

tscheck said:

What libraries are you linking too? Are you using the debug or release .out file? Debug will have a lot of extra info, try the release version if you haven't already.

Regards,

Travis

I use some MCSDK libraries in release version. I try to generate my exec and my libraries both with and without debug symbols but nothing change. Anyway, regardless of the debug info included, the strip6x should cut everything not needed but it reduces only a bit the size, about 2M.

0 Alberto Chessa over 13 years ago in reply to Alberto Chessa

Mastermind 6670 points

I solve the problem. I used an ALIGN directive that generates a gap of 16M, filled with zeros. See also http://e2e.ti.com/support/development_tools/compiler/f/343/t/149011.aspx.

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C6678EVM: NOR Write and too big ELF files