CCS/TMS570LC4357: How to set predefined memory location for my each function ?

Arun Prakash

Part Number: TMS570LC4357

Tool/software: Code Composer Studio

Hi,

I want to verify the each function CRC32 value, at system start up. I have CRC32 software module, so i can easily found the CRC32 for any of the memory location. But my query is "for system safety, i need verify the CRC value for each function. That value already should store in EEPROM or hardcode"

So how can i define the function name in pre-defined memory location also find the function size. if possible i can easily calculate the CRC for each function and i will validate each system startup. . I studied about like need to properly configure the linker cmd file. is this correct?

Please provide any example or solution or your idea. Thanks in advance

over 5 years ago

0 George Mock over 5 years ago

TI__Guru**** 249900 points

TI supplies no solution for computing and checking the CRC of one function. You can do that for one output section. Please search the ARM assembly tools manual for the sub-chapter titled Linker-Generated CRC Tables.

Thanks and regards,

-George

0 Arun Prakash over 5 years ago in reply to George Mock

Intellectual 390 points

Dear George

Thanks for the response, i will refer that document for further, Is it possible to define the function in particular memory section?

0 George Mock over 5 years ago in reply to Arun Prakash

TI__Guru**** 249900 points

Arun Prakash said:
Is it possible to define the function in particular memory section?

It is possible to isolate a function into a section with a name you choose. Then, in the linker command file, you can specify where this section is allocated to memory.

For isolating the function into a section, there are three methods to consider.

Compiler build option --gen_func_subsections
#pragma CODE_SECTION
GCC function attribute section

For documentation on these methods, please search the ARM compiler manual.

To learn how specify where a section is allocated in memory, please read the first part of the article Linker Command File Primer.

Thanks and regards,

-George

0 Arun Prakash over 5 years ago in reply to George Mock

Intellectual 390 points

Dear George.

As per your suggestion, i was configured the MEMORY and SECTION in linked cmd file. #pragma CODE_SECTION(fn, "SECTION_NAME") also working fine.

Thanks a lot.

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CCS/TMS570LC4357: How to set predefined memory location for my each function ?