Not all customers necessarily need to use an OS or RTOS.  More specifically, when it comes to a quick evaluation of the processor functionalities or a quick test on a new hardware (PCB board), designers do not want to spend time implementing a heavy OS; this is where the Microchip software package comes into play. It offers around forty examples in C/C++ that exercise most of the SAMA5D3 features. Finally, Microchip delivers a full package to customers interested in implementing a secure boot solution. This includes a generic presentation, multiple application notes, and PC software. The secure boot package is delivered under restricted conditions and requires an NDA; contact an Microchip sales facility.