CodeWarrior for MCUのトピックRe: MCU Codewarrior: Problem report is - region 'm_data' overflowed

MCU Codewarrior: Problem report is - region 'm_data' overflowed

armendgecaj — Tue, 23 Aug 2016 11:09:36 GMT

Hi all,

i am working with Kinteis K -series (with Codewarrior).

I am developing an algorithm, that produces a random labyrinth (with C).

Now i will show my labyrinth on a LCD Display.

But if i build my Project in Codewarrior i get the problem report: region 'm_data' overflowed by 12808 bytes.

I researched that the memory of the Kinetis K - family is seperated in two (m_data and m_data_20000000). I looked in my Project map file but my memory is not seperated.

I looked after another solution but i did not find any.

Does anybody have a solution?

Can it be that the memory requirements of my algorithm is to big for my microcontroller?

Or can i do something in the settings of Codewarrior to solve the Problem.

Armend

Original Attachment has been moved to: mapFile.map.zip

Re: MCU Codewarrior: Problem report is - region 'm_data' overflowed

TICS_Fiona — Wed, 24 Aug 2016 08:57:19 GMT

Hello Armend

Usually, ‘m_data’ is used to save global variables, stack, heap. And the array ’abyrinth’ in your application is placed in .bss, which also locates in ‘m_data’. Since the ’abyrinth’ is a big array, please try to enlarge the size of ‘m_data’ in your link command file.

Best Regards
Fiona Kuang
TIC - Technical Information Center
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Re: MCU Codewarrior: Problem report is - region 'm_data' overflowed

armendgecaj — Fri, 26 Aug 2016 05:54:24 GMT

Hi Kuang,

i thank you very much. I tried your suggestion and it works. As you told me i changed the length of 'm_data' in my command file.

Agian: thank you!

If you have some time can you explain me why this works. Well, why can i enlarge 'm_data'?

I thought this is given me by my microcontroller.

Is 'm_data' a part of the memory of my microcontroller?

If yes, why can i change it?

Thank you very much!

Best Regards

Armend