HummingBoard IIOT & RZ/G2L SOM Quick Start Guide

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Introduction

The following quick start guide provides background information about the HummingBoard IIOT.

The guide will give a technical overview about the product and by the end of it you should be able to boot an operating system and begin testing your application.

Revision and Notes

Hardware Setup

Product specifications

Block Diagram

The following figure describes the RZ/G2L Block Diagram.

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Visual features overview

Please see below the features overview of the connector side of the HummingBoard IIOT & RZ/G2L SOM.

Print side connector overview of the HummingBoard IIOT & RZ/G2L SOM.

Power Input Polarity [J1]:

• Connector Type: Green two-terminal connector [J1].

• Voltage Range: 7V to 32V.

• Polarity:

  • + (Positive): Left terminal (as marked in the image).

  • - (Negative): Right terminal (as marked in the image).

J5004 {2x RS485, 2x CAN-FD, 2x RS232, DIG_IN, DIG_OUT}

Software Setup

Cable setup and prerequisites

Here is what you will need to power up and use the board:

• Linux or Windows PC

• HummingBoard IIOT with SOM

• 12V Power adapter (HummingBoard IIOT has wide range input of 7V-28V), alternatively you can use a PoE injector to power on the device.

• Type-C to USB for console, the HummingBoard IIOT has an onboard FTDI chip.

• IP router or IP switch

Boot Select

Before powering up the board for the first time it is recommended to select the boot media using onboard DIP switch S5:

Booting from SD card

Boot Select

Here is the correct DIP switch position for SD boot:

Once you set the switches, you can apply the following for booting from an SD card.

1. Downloading the Debian image

Download the Debian image by running the following command on your Linux/Windows PC:

• For more Debian releases, please visit Debian Releases for RZ/G2L.

2. Writing the image to the SD card

Use the following commands for writing the image to an SD card:

• For more information, please visit Flashing an SD Card .

3. SD card insertion

Please Insert the SD card into your device.

4. Power connection

Connect your power adaptor to the DC jack, and then connect the adaptor to mains supply.

5. Serial Connection

Please insert the micro USB into your device, then you can refer to Serial Connection for installing necessary serial connection software in Linux/Windows.

Once you installed the necessary serial connection software, you should be able to see the following:

• In order to be able to log in , please insert “root” as a username and password as follows:

More Features

Internet

Connect an Ethernet cable to your HummingBoard Pulse (for internet access during boot-up).
Models HummingBoard with WiFi, can be connected via WiFi or wired Ethernet.

• Please check you Ethernet connection.

• Use the following commands in order to keep your system up-to-date:

• For more detailed information, please refer to i.MX8M Debian .

WiFi

• You can connect to WiFi using any application, such as : connmanctl or wpa_spplicant.

An example for connecting to WiFi using wpa_supplicant:

1. To bring a WiFi interface up, run the following :

2. Install the wpa_supplicant package:

3. Edit network interfaces file :

At the bottom of the file, add the following lines to allow wlan as a network connection:

4. Create a configuration file with the relevant ssid:

5. Make sure it works:

Restart your device and it should connect to the wireless network. If it doesn't, repeat above steps or get help from an adult.

• For more information about using wpa_supplicant , you can refer to wpa_supplicant or wpa_supplicant.

Bluetooth

1. For showing all Bluetooth devices, run the following:

2. Choose a device, and turn it on:

3. Set up the Bluetooth name:

4. Make your Bluetooth detectable by other devices:

5. If you want to connect to other devices:

• Start by scanning for other Bluetooth devices:

• Choose a MAC address and connect :

• You can check the communication between the devices by writing :

Cellular Modem

The cellular modem is a more fully featured extension of which contains a cellular module with additional hardware interfaces and a SIM card slot.

You can connect your cellular modem to the mPCIe, and insert a SIM card.

• For some cellular modules to be connected, please refer to Cellular Modules .

SPI

For testing you serial peripheral interface - SPI, please see this documentation SPI from Linux with spidev.

GUI On Debian

There is an option with the Debian image, up to the user, to work with a GUI like Weston, GNOME and etc.
For applying this option do the following steps:

First, connect your device to a screen using the working output (HDMI / uHDMI).

For working with Weston GUI:

1. Install the Weston package.

2. Make a directory for the output of the Weston GUI.

3. Give permissions to this directory.

4. Set the XDG_RUNTIME_DIR env param to your directory.

5. Run Weston.

    

For working with GNOME GUI on top of Xorg:

1. Install Xorg.

2. Install your desired gnome.

   NOTE: ‘gnome-session’ is an example of gnome that we can work with, you can replace the ‘session' with another GNOME extention.

3. Start your GNOME GUI.

   • For logging in you need a user on your device to log into it. You can create one before step 3 by this command (replace the ‘username’ with name that you want) :

   • You can jump between GUIs that you install (like gnome-session) by the setting button that locates in the down right corner of the home screen.

TLV EEPROM Support

RZ/G2L SoMs are being programmed with identifying information such as the product name, MAC Address and SKUs to allow for programmatic identification of hardware.

List Of Supported OS

Build from source

• GitHub - SolidRun/build_rzg2lc: Scripts to build basic Buildroot/Debian images for RZ/{G2LC, G2L, V2L} based platforms

Documentation

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