C2000WARE-MOTORCONTROL-SDK: Arrangement Rules for Data in the .cinit Section

yang li

Part Number: C2000WARE-MOTORCONTROL-SDK

Tool/software:

Hello everyone,

I am studying the startup process of TMS320 series DSPs and have some questions about the arrangement rules of initialized data in the .cinit section.

How exactly is the variable initialization data organized in the .cinit section under the COFF file format?
I have observed some of the arrangement rules and created a simple summary. Is there any technical documentation that provides details on this subject?

Thanks for your help!

4 days ago

0 Delaney Woodward 4 days ago

TI__Mastermind 18395 points

Hi Yang,

Please take a look at the following and let me know if they answer your question:

C2000 Migration from COFF to EABI

SPRU513 User guide | TI.com

Best Regards,

Delaney

0 yang li 3 days ago in reply to Delaney Woodward

Prodigy 20 points

Thank you for your response. However, my search didn't yield any useful information. Could you please point me to where I can look up the flags corresponding to different data types? For instance, is 'FF FE' the identifier for a float type？

Could you explain the mechanism by which the loader parses the .cinit section and carries out the encoded initializations during load time?

0 Delaney Woodward 5 hours ago in reply to yang li

TI__Mastermind 18395 points

Hi Yang,

Please check this document as well:

Common Object File Format (COFF

Apologies, I meant to link this in my other reply too. It includes more detailed descriptions of the COFF format. I will loop in the compiler expert as well to see if they can give a more detailed explanation.

Best Regards,

Delaney

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C2000WARE-MOTORCONTROL-SDK: Arrangement Rules for Data in the .cinit Section