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{{Applies To Bora}}
{{Applies To BoraX}}
{{Applies To BoraLite}}
{{InfoBoxBottom}}
|[[Bora_Embedded_Linux_Kit_(BELK)#BELK_software_components|3.0.0]]
|First release
|-
|2.0.0
|December 2016
|BELK 3.0.1 / BXELK 1.0.0
|Added information about new kits
|-
|3.0.0
|July 2017
|BELK 4.0.0 / BXELK 2.0.0
|Added information about new kits
|-
|}
==Introduction==
BELK provides a bootable microSD that can be used not only to quickly start the system, but also as a recovery method in case the primary boot device (eg. QSPI NOR flash) gets erased or corrupted. The following sections describe how to create a bootable SD card and how to configure the system for booting from SD.[[Restoring_U-Boot_on_SPI_NOR_flash_(BELK/BXELK)|This article]], for example, shows how to make use of such a card to restore the U-Boot image onto the NOR flash. {{ImportantMessage|text=It is worth remembering that the bootable microSD card described in this article is not configured to perform a full boot sequence, including the operating system bootstrap. The bootable microSD card delivered along with the kit is set up to do a full bootstrap sequence, instead. For more details, please refer to [[Working_with_the_Yocto_build_system#bootscript|this section]].}} ==How to create a bootable MicroSD microSD card=====BELK <= 3.0.2 / BXELK <= 1.0.1===This section describes how to create a new bootable microSD card from scratchfor '''BELK <= 3.0.2''' and '''BXELK <= 1.0.1'''.
The following components must be available:
*FSBL built with Vivado 2014.4 as described [[Creating_and_building_example_Vivado_project_(BELK)|here]]
*on a PC, format the microSD card creating a FAT32 partition
*copy the <code>boot.bin</code> file to the microSD card FAT32 partition.
===BELK-4.0.0 / BXELK-2.0.0===
This section describes how to create a new bootable microSD card from scratch for '''BELK-4.0.0''' and '''BXELK-2.0.0'''.
The following components must be available:
*U-boot SPL and U-boot second stage built as described in [[Building_U-Boot_(BELK)|here]]
*FPGA bitstream (optional).
The procedure is the following:
*on a PC, format the microSD card creating a FAT32 partition
*copy the following files to the microSD card FAT32 partition:
** U-boot SPL: <code>boot.bin</code>
** U-boot second stage: <code>u-boot.img</code>
** Fpga bitstream .bit (optional): <code>fpga.bit</code>
==How to configure the system for microSD boot==
For Bora/BoraEVB systems please refer to [[BoraEVB#Boot_mode_selection_-_S5|this pagelink]]. For BoraX/BoraXEVB systems please refer to [[BoraXEVB#Boot_mode_selection_-_S5|this link]]. {{ImportantMessage|text=In case the microSD card provided along with the kit is used, the Programmable Logic is automatically programmed with the [[Creating_and_building_example_Vivado_project_(BELK/BXELK)|example design]] during the boot process.}}
