I have not tested a RT1020 lately. My board is pack becaue I am moving in a > fey days. It will be a several weeks before I can l look at it. Possibly > Dave Marples github @mubes can lend a hand. > >
In the mean time check out calls to up_allocate_heap() and arm_addregion() in https://github.com/apache/incubator-nuttx/blob/master/arch/arm/src/imxrt/imxrt_allocateheap.c. Note that these depend on a lot of configuration settings. Most likely one of the settings is incorrect in your configuration files.
