new pcba，new n2l ，Blank flash。
RAM execution without flash memory ，xSPl0 boot mode (x1 boot serial flash)，Cannot enter debug
Does RAM execution mode require no flash?
Can a blank flash be directly debugged in xSPl0 boot mode (x1 boot serial flash) mode? Whether to burn boot parameters in serial port mode.
Create a New Project for Blinky (Getting Started with Flexible Software Package)
In RAM debug execution, program are not load/copy from external flash to RAM rather debugger copy program to the RAM for execution.
How to debug in flash boot mode, please check the FSP getting start guide.