This section discusses the following subjects:
The Intel® Joule™ platform is a system on module (SoM) and is available in multiple configurations that share the same footprint and interface connector placement. This enables accelerated product design by providing multiple levels of compute power, graphics performance, and memory options in a single common footprint.
Intel® Joule™ Module Configurations
There are two configurations of the module.
The SD card interface supports SD memory at a maximum of 208MHz (SDR104 mode). An external level shifter is required. The level shifter needs to support dual voltage operation in case UHS-I or faster speeds are required. Signals going to an SD card connector should have ESD protection and EMI filtering.
This section lists Gstreamer commands that can be used to activate a camera by either streaming data from the camera as a viewfinder on a display (or HDMI output) or by sending the data stream to a video encoder for compression and storage as a video file.
Gstreamer offers additional features and commands that may not be enabled nor supported by the development platform hardware or Ref-OS-IoT software image.
The Intel® Joule compute module includes an Intel ® Dual Band Wireless-AC 8260 adapter. The adapter has Dual mode Bluetooth® 4.2 enabling BR/EDR - Low Energy protocols, supports Bluetooth® Core Specification Version 4.2 with provisions for supporting future specifications. It also supports Bluetooth® Class 1 or Class 2 transmitter operation.
Reference Operating System for IoT includes the BlueZ stack and various utilities for debugging.
Pinmapping for the breakout connectors can be found in Module Board-to-Board Connector Pinout. The tables below provides the pin assignment, signal name, and description for the signals on the breakout connectors J12 and J13.
These signals are mapped by various operating systems in different ways, and that mapping can be redefined by software methods.
"Not registered" message when trying to connect to Wi-Fi
If you see a "not registered" message when trying to connect the development platform to a Wi-Fi network, make sure that you have turned the agent on from the command line. See WiFi_Make_Connection for details.
This section covers the MIPI CSI interfaces of the compute module. USB cameras are managed by the USB service layer.
There are two MIPI CSI interfaces on the compute module; the CSI camera modules are connected directly to the module as the CSI signals are not routed through the board to board connectors.
The Intel® Joule™ module interfaces with the expansion board through two high-density, board-to-board connectors labeled J6 and J7 on the expansion board. The default pin usage of J6 and J7 refers to the vantage point of the expansion board. For example the +VBUS signal originates in the expansion board and is delivered to the module; therefore, +VBUS is an output from the expansion board.