CCS: How do I tell the linker to place one specific object module at a specifice location in my flash.

DaveG

Tool/software: Code Composer Studio

Assume x.obj is a group of functions that require a 3K space in flash. I want to place his module and all the functions contained in it to exist in this section and starting at for example, address of 0xA000. I don't want any code in this object module to be placed in any other sections or any code that is not in this object file to be placed in the section. I suspect this is a .cmd file operation with a #pragma reference at the beginning of the specific C module that I want to locate at an absolute address. I believe the linker wants to put the active program code in the .text section. I can add a memory area like the "FLASH" in the .cmd file and add a section My_Area in the sections definition but I don't know where and how to tell the linker to put x.obj in that section. I am also not sure that there is not a better way that I have missed. In assembly this might be an ORGIN definition but what is the equivalent in 'C'?

over 8 years ago

0 George Mock over 8 years ago

TI__Guru**** 249860 points

First, please become familiar with your current linker command file by reading the first half of the wiki article Linker Command File Primer.

With that understanding now in place, add a line similar to this in your linker command file ...

    output_section_name { x.obj(.text) } > 0xA000

That creates an output section named output_section_name. It is made up of one input section, the .text section from the file x.obj. This output section is allocated to the address 0xA000.

Thanks and regards,

-George

Code Composer Studio™︎

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CCS: How do I tell the linker to place one specific object module at a specifice location in my flash.