topic Re: link error ... pls help in Classic/Legacy CodeWarrior

link error ... pls help

bingo23 — Mon, 31 Jan 2011 17:24:15 GMT

Hi Everybody,

I'm new to codewarrior and I'm working on energy meter project. I got a reference code for this project and when I compile it I get the following error msg.

Link Error : Undefined : "main"
Referenced from "_startup" in

Link failed.

What does this error msg mean and how do I solve it?

I'm using the codewarrior version 6.3. But the actual project was done in an older version. Could that be the reason for the error.

Re: link error ... pls help

Lundin — Mon, 31 Jan 2011 17:28:39 GMT

It means that the linker can't find a function named main() in your program. "Startup" is the CW default code that gets executed after MCU reset, and it calls main().

Re: link error ... pls help

bingo23 — Mon, 31 Jan 2011 17:33:02 GMT

Thanks for the quick reply.

Ive checked the code and the main() fn is defined. Then why is this error still occurring?

Re: link error ... pls help

bingo23 — Mon, 31 Jan 2011 17:36:49 GMT

oh sorry ... you were right. It was because the startup was calling Main() and the ref code was using main().

thanks a lot