> For the complete documentation index, see [llms.txt](https://docs.conexiotech.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.conexiotech.com/getting-started-with-conexio-blitz/conexio-blitz-overview/programming-and-debugging/building-and-programming-an-application/conexio-blitz-board-definition-files.md).

# Conexio BLITZ Board Definition Files

Before we can compile and flash the application firmware to the BLITZ device, we need to gather a few files for this board. First, we need to install the board definition files or the board’s devicetree in the ZephyrRTOS. Zephyr utilizes devicetree to describe the hardware available on its supported Boards, as well as that hardware’s initial configuration. An introduction to the devicetree is well documented [<mark style="color:red;">here</mark>](https://developer.nordicsemi.com/nRF_Connect_SDK/doc/latest/zephyr/guides/dts/intro.html).

### **Fetching Conexio BLITZ Board Definition Files**

<figure><img src="https://3229153654-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F-MXjGw-Z8_tCuNQB93OW%2Fuploads%2FLM1zxS3BaCJCeUA8Jpp8%2Fblitz-top-view.png?alt=media&amp;token=7e96eb67-f59a-40d3-8787-94a7ddb509cf" alt="" width="375"><figcaption><p>Conexio BLITZ</p></figcaption></figure>

BLITZ developers are asked to directly download the board files in zip format below extract/unzip, and copy the `conexio_blitz` folder and place it in the NCS directory:

&#x20;**Device Tree for nRF SDK v2.6.0**

> ncs/v2.6.0/zephyr/boards/arm

Coming soon...

You should now see a folder named `conexio_blitz` among other supported board files. Using the board target as `conexio_blitz_cpuapp` you can now build Zephyr applications for the BLITZ board.

```
└── ncs/
    └── v2.6.0/
        ├── zephyr/
        │   └── boards/
        │       └── arm/
        │           ├── ...
        │           ├── ...
        │           ├── conexio_blitz
        │           └── ...
        ├── bootloader
        ├── modules
        ├── nrf
        ├── tools
        ├── toolchain
        └── ...
```

### Download the BLITZ Board Definition Files from Git repo

Coming soon...

### Patch MCUBoot file for Stratus Pro Board

Coming soon...