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

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Info

Please Note:

The black rectangle represents the switch position.

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

    Code Block
    wget https://solid-run-images.sos-de-fra-1.exo.io/RZG2LC/Debian/sr-rzg2lc-debian-bullseye-ea244d8-cli-rzg2lc-hummingboard.img.xz

  2. Writing the image to the SD card and USB Disk
    Use the following commands for writing the image to an SD card:

    Code Block
    xz -dc sr-rzg2lc-debian-bullseye-ea244d8-cli-rzg2lc-hummingboard.img.xz | dd of=/dev/sdX bs=4k conv=fdatasync

    • 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.

  3. SD card insertion
    Please Insert the SD card into your device.

  4. USB Disk insertion
    Plug your USB device into the lower USB port

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

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

  7. Set U-Boot configuration
    Press any key to stop the device in U-Boot when you see the U_Boot counter and run the commands below

    Code Block
    setenv bootargs 'root=/dev/sda1 rootwait'; mmc dev 0; ext4load mmc 0:1 0x48080000 boot/Image; ext4load mmc 0:1 0x48000000 boot/rzg2lc-hummingboard.dtb;

  8. Enable eMMC
    set the dip switch S3 to enable the eMMC -> S3 = {1-5:N/C, 6:off}
    Note: 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…

  9. Boot and loading Debian from USB Disk
    run the U-Boot command below to boot

    Code Block
    booti 0x48080000 - 0x48000000

  10. 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:

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It should load full Debian image from eMMC (SD & USB can be removed)

13. Set eMMC U-Boot Environemnts
Stop it in U-Boot and run the commands below to

Code Block
setenv bootcmd " setenv bootargs 'root=/dev/mmcblk0p1 rootwait'; mmc dev 0; ext4load mmc 0:1 0x48080000 boot/Image; ext4load mmc 0:1 0x48000000 boot/rzg2lc-hummingboard.dtb; booti 0x48080000 - 0x48000000"; saveenv

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.

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