> For the complete documentation index, see [llms.txt](https://docs.excl.ornl.gov/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.excl.ornl.gov/system-overview/snapdragon.md).

# snapdragon

This document describes how to access Snapdragon 855 HDK boards through mcmurdo and amundsen excl computing machines. The Snapdragon 855 HDK board is connected to Ubuntu linux machines through ADB.

## Description

The Qualcomm® Snapdragon™ 855 Mobile Hardware Development Kit (HDK) is a highly integrated and optimized Android development platform.

Accessing this system:

* Qualcomm board is connected to an HPZ820 workstation (McMurdo) or to an HP Z4 workstation (Clark) through USB
* Development Environment: Android SDK/NDK
* Login to mcmurdo or clark
  * $ ssh –Y mcmurdo
* Setup Android platform tools and development environment
  * $ source /home/nqx/setup\_android.source
* Make sure you have a functioning environment
  * adb kill-server
  * adb start-server
  * adb root (restart adbd as root)
  * adb devices (to make sure there is a snapdragon responding)
  * adb shell (to test connecting to the device)
* Run Hello-world on ARM cores
  * $ git clone <https://code.ornl.gov/nqx/helloworld-android>
  * $ make compile push run
* Run OpenCL example on GPU
  * $ git clone <https://code.ornl.gov/nqx/opencl-img-processing>
  * Run Sobel edge detection
    * $ make compile push run fetch
  * Login to Qualcomm development board shell
    * $ adb shell
    * $ cd /data/local/tmp

## Other Details

The snapdragon SDK uses python 2.7; you may need to explicitly specify python2 in your environment.

## Access

Access will be granted per request (as this cannot be used as a shared resource).

## Useful Links

1. Android Studio: <https://developer.android.com/studio>
2. Qualcomm HDK: <https://developer.qualcomm.com/hardware/snapdragon-855-hdk>
3. Qualcomm Neural Processor SDK: <https://developer.qualcomm.com/software/qualcomm-neural-processing-sdk>

   <https://developer.qualcomm.com/docs/snpe/overview.htm>

## Images

![Laboratory Setup](https://4244690715-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-McQDUQ3llzFCPZiz6Wq%2Fsync%2Fb7d35750ccfb7f5f34796a2e9a96a56652768a31.jpg?generation=1623954703123279\&alt=media)