Compiler/CC2640R2F: Project compiles memory allocation is different between 1 PC and another PC

Hi Erez,

This is very mysterious. Are both computers using the exact same unmodified project and the same CCS version also? Is it possible that you have changed the optimization level or something in the project settings for each project?

BR,
Aslak

Actually, optimization is switched off in both.
I need a better understanding of the FLASH_LAST_PAGE section, there is the major difference between both, maybe we can get the clue from there, how can I debug what is cosnt.2 section under the FLASH_LAST_PAGE?

Hi,

FLASH_LAST_PAGE is just used as an extension of the whole flash, but is defined separately so that CCFG can be placed at the end of it, and so the whole page can be omitted easily if needed.

So in your case, the rest of the flash is full and the linker continues filling into the last page.

You can compare the .map files and see what each module / symbol uses in terms of space, and see from that what the culprit is.

But if you can confirm that the source code and project files are _exactly_ the same, then I'd be happy to involve someone from the compiler team - the forum you landed in is concerned with mostly stack and hardware issues.

Please attach the output from the build console for each machine, in case that's useful for the experts.

Best regards,
Aslak

Thanks,

I appreciate the futher support for this matter, attached both output (from bPC1_output.txtPC2_output.txtuild console)

I inspected the build logs a little.  I found two differences worth pointing out. I'll refer to the two builds as PC1 and PC2.

PC1 uses C:/ti/xdctools_3_50_00_10_core/xs, while PC2 uses C:/ti/xdctools_3_50_04_43/xs .  And there are other differences in the xs invocation.  

PC1 never defines the preprocessor symbol --define=__H3101_H3102_HSN_CC2640R2, but PC2 does.

I don't know what effect these differences cause.  But it seems likely they will cause some differences in code size.

Thanks and regards,

-George

Please confirm whether the differences I point out in my last post fully explain the change in code size.

Thanks and regards,

-George