topic Re: How to set heap size 0 in MCUXpresso IDE in MCUXpresso IDE

How to set heap size 0 in MCUXpresso IDE

zorrotz — Mon, 08 May 2017 09:34:53 GMT

Hi,

I´m trying to set size 0 for the heap, but automaticaly it is set to 'default'.

How can I set heap size to 0 or disable the heap?

Thanks

Re: How to set heap size 0 in MCUXpresso IDE

lpcxpresso_supp — Mon, 08 May 2017 11:32:48 GMT

Yes, it looks like the current implementation of the Heap and Stack placement table only allows the heap to be reduced to 4 bytes, rather than 0. But also providing the below function in your application should do the trick:

unsigned __check_heap_overflow (void * new_end_of_heap) {
   return 1; // Heap has overflowed
}

See chapter 12 of the MCUXpresso IDE v10.0.0 User Guide for more details on this function.

Regards,

MCUXpresso IDE Support

Re: How to set heap size 0 in MCUXpresso IDE

zorrotz — Mon, 08 May 2017 12:58:38 GMT

Thank you

This trick helps.