Kinetis Design StudioのトピックOn the startup

On the startup

pietrodicastri — Wed, 18 Nov 2015 10:17:56 GMT

Good morning

I have a problem with the start up.

in the startup_MK64F12.S I see the following lines

#ifndef __ATOLLIC__

bl __START

#else

bl __libc_init_array

bl main

#endif

If the __ATOLLIC__ is not defined it will branch to the __START. It is what happens using the KDS with GCC compiler.

But after the execution of the __START the sp is sinked down by about 32KB. I wander in the name of what. I have reserved

8KB for the stack and after the __START the sp is pointing out of the assigned area. Everything works because I have a lot of unusued

ram. but things are not in order...

Someone has a knowledge about this question???

Thank You everybody

Pietro

Re: On the startup

ZhangJennie — Thu, 26 Nov 2015 08:27:01 GMT

hello Pietro.

I use KDS3.0, but the code from my side is not exact as yours.

what KDS version do you work with ?

i attached a video from my side. can you please check if it's same as yours?

Have a great day,
Zhang Jun

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Re: On the startup

pietrodicastri — Mon, 30 Nov 2015 15:52:26 GMT

Hello

Thank You for the interest.

I am using the KDS 3.0. I just create a project with the wizard for the MK64.

I don t see the attachment. If You can just renew I would like to have this suggestion.

Thank You

Pietro

Re: On the startup

pietrodicastri — Tue, 01 Dec 2015 08:17:31 GMT

Thank You

I see now the attachment. We have the same file but the code is different. I don t know what happens.

For now I just prevent the execution of the __libc_init_array and it works normally.

Thank You

Pietro