HummingBoard Ripple & RZ/G2LC SOM Quick Start Guide



The following quick start guide provides background information about the HummingBoard RZ/G2LC.

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









Nov 23, 2022

Yazan Shhady 


Initial release

Feb 28, 2023

Yazan Shhady 


Updated SW Versions

May 15, 2023

Yazan Shhady 


Updated SD SW Versions

Table of Contents


Hardware Setup

Product specifications







2 x USB 3.0



1 x Ethernet RJ45 10/100
1 x 802.11 a/b/g/n/ac WiFi and Bluetooth (2.4 GHz)


Renesas RZ/G2LC Dual core Arm Cortex A55 up to 1.2GHz + Cortex M33

Memory & Storage

Up to 2GB DDR4


micro HDMI


1 x Reset button
1 x Configurable push button
3 x LED indicators

Development and Debug interfaces

Micro USB


7V – 36V

Expansion card I/Os

mikroBUS header
Mini Pcie with SIM holder


Commercial: 0°C to 70°C
Industrial: -40°C to 85°C


PCBA: 100 x 70mm
Enclosure: 120 x 80 x 30mm


Extruded aluminium



Supported with RZ/G2LC SOM. For more detailed information about our SOM-RZ/G2LC series please visit this user manual : RZ/G2LC SOM Hardware User Manual .

Block Diagram

The following figure describes the RZ/G2LC Block Diagram.


Visual features overview

Please see below the features overview of the connector side of the HummingBoard RZ/G2LC


Print side connector overview of the HummingBoard RZ/G2LC.

Software Setup

Cable setup and prerequisites

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

  • Linux or Windows PC

  • HummingBoard Ripple with RZ/G2LC SOM (HummingBoard RZ/G2LC)

  • 12V Power adapter (HummingBoard Ripple has wide range input of 7V-36V, it is recommended to use 12V power adapter).

  • Micro USB to USB for console, the HummingBoard Ripple has an onboard FTDI chip.

  • IP router or IP switch

  • USB Disk and SD Card

Boot Select

Before powering up the board for the first time it is recommended to select the boot media. In order to configure the boot media, please refer to HummingBoard RZ/G2LC Boot Select .

eMMC and SD connect to the same SDIO signals via MUX so we can’t have access to the SD & eMMC at the same time, select eMMC/SD by setting switch S3{6} → off : eMMC , on : SD

Generating Yocto, Buildroot and Debian image


  1. Clone the repository from the “List of supported OS” link and move your terminal to this directory.

  2. Download the layers by this command

    $ repo init -u -b dunfell -m meta-solidrun-arm-rzg2lc.xml $ repo sync
  3. In this stage you can modify your image configs as you want, you can find more info about it the the repository.

  4. For graphics support you need to explore in the readme file in the github and follow the instructions of this utility.

  5. Set the environment of the image that going to be build by this command

    $ TEMPLATECONF=$PWD/meta-solidrun-arm-rzg2lc/docs/template/conf/rzg2lc-solidrun source poky/oe-init-build-env build
  6. Build your own Yocto image by this command

    $ MACHINE=rzg2lc-hummingboard bitbake <target>
    • NOTE: Choose your relevant target, for example:
      -core-image-bsp: cli image.
      -core-image-weston: graphical image.
      -core-image-qt: graphical image including qt.


  1. Clone the repository from the “List of supported OS” link and move your terminal to this directory.

  2. In this stage you can modify your image configs as you want, you can find more info about it the the repository.

  3. Build your own image by this command

Booting from SD card

The following shows how to set the switches on the boot source selector:

Please Note:

The black rectangle represents the switch position.

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

  1. Downloading the image
    Download the image (for example Debian) by running the following command on your Linux/Windows PC:

  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 .

    • Note: Plug a micro SD into your Linux PC, the following assumes that the USB-Disk / Micro-SD is added as /dev/sdX and all it’s partitions are unmounted.

    • Note: You can use the following command for writing to the SD in case you generated your own image:

  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. Power On
    Hold on the On/Off Power button - SW1 (as shown in the figure below)

    • Note: The system should turn on by default when the power is connected (without pressing the button).

  6. 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:

  • Enter “root” in the login like the above example and then you can move on to use the device.

Final stages

The following stages need to be done in order to finalise the imaging:

  1. Run fdisk /dev/mmcblk0 if using SD or eMMC.

  2. Recreate the rootfs partition (mostly the second partition) by deleting it and then creating a new partition that starts at the next sector after the first one and extends to the end of the drive (or less depending on your needs).

  3. Write the new partition, when prompt about ‘Do you want to remove the signature?’ then answer with Yes.

  4. Run resize2fs /dev/mmcblk0p2 if using SD Card or eMMC.

  5. In this stage the root partition should be big enough to start populating it; but first update the RTC clock.

  6. Connect the RJ45 to your network with internet access (and DHCP server); and then run dhclient.

  7. Update the RTC clock by running ntpdate and then hwclock -w.

  8. Run apt-update commands below and then populate the root filesystem as you wish.

Here is an example of the process until the 3rd step (include):

After those steps you should end the process in this way (step 4 to the end):

In the end you should see with “lsblk” that the partition size is in the required size.

More Features

List Of Supported OS

Build from source


  File Modified

ZIP Archive

Feb 28, 2023 by Yazan Shhady

ZIP Archive HummingBoard Mechanical

Feb 28, 2023 by Yazan Shhady

ZIP Archive

Feb 28, 2023 by Yazan Shhady

ZIP Archive HummingBoard

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PDF File hummingboard-v2.5-Full-schematics.pdf

Feb 28, 2023 by Yazan Shhady

SolidRun Ltd.