Starterware/TDA2EVM5777: TDA2EX Family cortex M4 (IUP2): Want to go to main() through my start up file instead of Cint through boot.asm

Harshalkumar Shinde

Part Number: TDA2EVM5777

Tool/software: Starterware

Hello,

I write my .asm startup file in that define the Reset handler function and from that calling main function. it works but after following scenario

1. When load the program through CCS 7.1, main function calling from cinit through boot.asm

2. When i do the cpu reset, control goes to Reset handler function which is written in my .asm startup file and from that function it call main function.

I want control goes to my Reset handler function when i load the program. I don't know why this happen, please help me in that.

Thanks,

Harshalkumar

over 6 years ago

0 Yordan Kamenov over 6 years ago

TI__Mastermind 42515 points

Hi Harshalkumar ,

I have forwarded your question to an expert for comment.

Regards,
Yordan

0 Piyali Goswami over 6 years ago in reply to Yordan Kamenov

TI__Mastermind 30235 points

Hi Harshalkumar,

CCS while loading looks for the entry point as defined during linking the code. In order for CCS to understand that the entry point in your code is your Reset Handler ASM function you need to specify that this function is your entry point with a linker command option -e <Reset Handler name>. or --entry <Reset Handler name>. (You can look up entry point in the compiler's user guide to know more about this).

Since you have placed the Reset handler in the beginning of the vector table the CPU reset will take you to this point. This is the expected hardware behavior.

Please try setting the entry point while building your code and let me know if this works for you.

Thanks and Regards,

Piyali

0 Piyali Goswami over 6 years ago in reply to Piyali Goswami

TI__Mastermind 30235 points

Hi Harshalkumar,

Have you been able to try this at your end? Is the fix working for you?

Thanks and Regards,
Piyali

0 Harshalkumar Shinde over 6 years ago in reply to Piyali Goswami

Intellectual 320 points

Hi Priyali,

Sorry for the late reply.
I tried this, Add the entry point in linker and its work fine.

Thanks for your valuable reply.

Thanks,
Harshalkumar Shinde

0 Piyali Goswami over 6 years ago in reply to Harshalkumar Shinde

TI__Mastermind 30235 points

Hi Harshal,

Thanks for confirming!!

Regards,
Piyali

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Starterware/TDA2EVM5777: TDA2EX Family cortex M4 (IUP2): Want to go to main() through my start up file instead of Cint through boot.asm