Where to set MPLab X PIC32 heap size

In order to set the heap size, use MPLab Harmony 3, click on System in the Project Graph, then open the tree as follows:

• Device & Project configuration
• Project configuration
• Tool Chain Selections
• XC32 Global Options
• Linker
• General

and set *Heap Size (bytes)*to the desired value.

Additionally, you need to set the heap size in the project options => XC32 options => xc32-ld options: