Murata SprIoT 6UL User manual

SprIoT 6UL Development Platform for
Android Things
Quick Start Guide

1. Overview
This tutorial helps new developers get started with the NXP based development platform for
Android Things –SprIoT 6UL board, and software support. Specifically, it walks through the
hardware setup, Android Things image build and board booting process.
Code development, build, and unit testing take place on the developer’s host computer. The
resulting image is flashed to the target hardware for further integration testing and debugging over
USB or Ethernet. Just as Android Things is Android-based, the software development leverages
Android development tools including ADB (Android Development Bridge) and FASTBOOT mode to
interact with the target.
This development platform together with the Board Support Package software aim to enable faster
development of IoT devices based on Android Things, and flexible hardware/software customization
needed for the particular device.
2. Hardware Requirement
The development kit contains:
SprIoT 6UL System-On-Module (SOM)
•EVK6UL-Base Board
•DC power supply
The power adapter specification is rated as follows:
DC output voltage: 5V
DC output Current: 2A
DC plug dimensions (mm): 5.5 +/- 0.05 (OD) x 2.1 +/- 0.05 (ID) x 10 +/- 0.3 (L)
Besides, other required materials include:
•Cables:
For ADB/FASTBOOT/MFGTool
oUSB type-A to Micro USB cable
Serial console:
oUSB type-A to Micro USB cable

3. Getting Familiar with the Development Platform
The key interfaces of the board are shown in Figure 1:
Boot mode switch to choose boot mode or download mode for the device.
5V power supply interface.
Power switch.
Micro USB connector which is used for USB to Serial Console convertor for debugging.
Audio jack.
USB OTG interface.
Optional WiFi and BT antenna with U.FL interface.
Figure 1. Top view of the SprIoT 6UL SOM and EVK6UL-BB

Take a close look at the switch on the top view of the board. There are two different setups for
download mode and boot mode. Continue reading for further details.
Figure 2a. Switch Setup (Download Mode S1:2’b01)

Figure 2b. Jumper Setup (Boot Mode S1:2’b10)
4. Connect the board and host computer
1. Connect the Micro USB to USB type-A wire’s Micro USB end to the USB to UART interface
(Number 4 in Figure 1). Connect the type-A end to the host PC.
2. Get a USB type-A to micro USB cable. Plug the micro USB end to the micro USB OTG (number 6
in Figure 1) for ADB and FASTBOOT interface. Plug another end of the USB cable to your
computer.
3. Plug in the power supply (Number 2 in figure 1) and switch S1(Number 7 in figure 1) to “2’b1b”.
5. Instructions to set up the serial console terminal
1. Make sure the you connect to the UART serial console as shown in step 3 in “Connect the board
and host computer” section
2. Start the serial communication software
3. Choose operating system of host computer–Window
a. Once the PC recognizes the virtual USB to UART device, it can be seen in your PC Device
Manager list. You can determine the port number of the virtual COM port by looking under
the "Ports" group.