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what is PAD memory area?

Alejandro Alis

Hi all,

I'm writing a program and until now the RO-data size wa around 2000 bytes.. Now, after some changes in the code, I saw the RO-data size is 33758 bytes... in the MAP file the compiler uses around 30000 bytes in the PAD area.. what's this?...

Thanks

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  • 0 in reply to Alejandro Alis

    Exactly - the linker has basically just told you that it has skipped a lot of RAM to reach a new memory region to place variables in. So it doesn't represent wasted RAM space.

    And it has given you a tip that some projects could potentially gain by strategic changes to variable placements to squeeze other things into this available hole.

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  • 0 in reply to Alejandro Alis

    Exactly - the linker has basically just told you that it has skipped a lot of RAM to reach a new memory region to place variables in. So it doesn't represent wasted RAM space.

    And it has given you a tip that some projects could potentially gain by strategic changes to variable placements to squeeze other things into this available hole.

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