address of malloc

lpeng

Hi, all

I have a problem with malloc. My program has a malloced sint array which is too big to put it in local L2. So I specify the .system section to DDR2. Since all three cores need to do something with this array, Is there any way that other cores can know the address of this array before malloc? (like static array using data_section pragma)

Best regards,

Liang Peng

over 14 years ago

0 HRi over 14 years ago

Guru 10750 points

Hi Liang,

There are two options, if all the cores are running the same SW that set the specific malloc first and check that it gets the same add for all the cores or define a static array in a specific addr in the external memory in the private cmd file,

BR,

0 lpeng over 14 years ago in reply to HRi

Prodigy 155 points

Hi, HR

I used your second option, and it works. : ) . I think the first option wont work when different core has different 'malloc sequence‘. and It needs a check.

Best regards,

Liang Peng

0 Mary Green over 14 years ago in reply to lpeng

Intellectual 400 points

Liang Peng,

What is your second option?Can you display some of your code here? I want to study it. Thanks.

0 lpeng over 14 years ago in reply to Mary Green

Prodigy 155 points

Hi Mary,

My second option is defining a static array in ddr in the each cores' cmd file.You can do that using data_section pragma in your source code.

best regards,

lpeng

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address of malloc