{{ImportantMessage|text='''For BXELK 1.0.1 or older, the boot process was based on the FSBL+second-stage bootloader (U-Boot) combination. From BXELK 2.0.0 on, the boot process is based on the first-stage bootloader (U-Boot SPL)+second-stage bootloader (U-Boot) combination.'''
}}
<section begin="Unboxing" />
==Unboxing==
**U-boot SPL for BXELK 2.0.0 or newer
* building the second-stage bootloader (U-Boot)
* building and running Linux operating system on [[:Category:BORA XpressBORA_Xpress_SOM|BORA Xpress SOM]]
* building and debugging applications that will be executed on top of Yocto-based Linux distribution running on the target.
The main kit components are:
* hardware platform, composed by [[:Category:BORA XpressBORA_Xpress_SOM|BORA Xpress SOM]] and [[BORA_Xpress_SOM/BORA_Xpress_Evaluation_Kit | BORA Xpress Evalutation kit]]
* By default, ARM cores frequency is set to 667 MHz and the [[Creating and building example Vivado project (BELK/BXELK)|example Vivado project]] is implemented for a "-1" device. This choice makes the software released with the kit compatible with possible variants based on different SoM models. In this regard, see also the [[#Order codes|order codes section]].