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Build Workstation Configuration

This section outlines key system and host environment configuration elements needed to build the reference operating system.

The following configuration and Yocto workflow is based on a workstation running Linux*. Examples provided have been tested with Ubuntu* 16.04 and should work on most modern distributions if adapted by a knowledgeable developer.

Camera SW Stack

The diagram below shows the high level software stack that is available to an imaging module connected to the Camera Serial Interface (CSI) bus to the internal Image Processing Unit (IPU) within the SOC.



Tools for Bluetooth

Debug Tools

Reference Operating System for IoT includes various widely used debug tools for Bluetooth® :

  • hcitool
  • hciconfig
  • hcidump
  • btmon

These tools provide the --help option about usage. Also, there are many resources available publicly to help you use these tools.


The Intel® Joule™ platform offers multiple solutions for data retention: eMMC, SD Card, and SDIO. Each storage type is intended for a specific use but offers the developer the flexibility to choose between them.


The module contains an embedded MultiMedia Card (eMMC) with ether 8GB or 16GB of storage capacity. See the System on Module Overview for module configurations.

Expansion Board Design Guide

The Design Guide provides guidance towards designing your own expansion board for use with the Intel® Joule™ module, based on our experience designing the reference expansion board described here.


This document provides the minimum information needed to design an expansion board for a module.

Required Straps

The boot behavior of the SoC on the module can be influenced by a number of strap signals. The table below shows the configuration of the straps for normal operation. It is the designer’s responsibility to ensure that their design does not impact the default signal levels; that is, the signals must remain in the default states until the PMIC_RESET is de-asserted.


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