Checking free memory

[SloMusti]

While debugging an application which is mis-behaving, I have discovered the need to determine the free memory available in real-time to see if something is going wrong.

For Arduino there is the library https://github.com/maniacbug/MemoryFree which does not work because:

...\Arduino\libraries\MemoryFree-master/MemoryFree.cpp:18: undefined reference to `__brkval'
...\Arduino\libraries\MemoryFree-master/MemoryFree.cpp:18: undefined reference to `__bss_end'

I believe it would be useful to have this feature in the core itself or have a known method that works to check this.

[GrumpyOldPizza]

This library will not work with ArduinoCore-stm32l0. Mainly because the heap/malloc layout in memory is different as to what the code assumes.

On Mon, Nov 26, 2018 at 3:23 AM SloMusti [email protected] wrote:

While debugging an application which is mis-behaving, I have discovered the need to determine the free memory available in real-time to see if something is going wrong.

For Arduino there is the library https://github.com/maniacbug/MemoryFree which does not work because:

...\Arduino\libraries\MemoryFree-master/MemoryFree.cpp:18: undefined reference to __brkval' ...\Arduino\libraries\MemoryFree-master/MemoryFree.cpp:18: undefined reference to __bss_end'

I believe it would be useful to have this feature in the core itself or have a known method that works to check this.

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