HummingBoard & Hailo 15 SOM Quick Start Guide

Introduction

The following quick start guide provides background information about the SolidRun Hailo 15 SOM.

The guide will give a technical overview of the product. By the end of it, you should be able to boot an operating system and run a demo application.

Revision and Notes

Hardware Setup

Product specifications

Visual Features Overview

Please see below the features overview of the connector side of the HummingBoard Pro & Hailo 15

Open

Software Setup

Cable setup and prerequisites

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

• Linux or Windows PC

• HummingBoard with Hailo 15 SOM

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

• The micro USB to USB for the console (the HummingBoard has an onboard FTDI chip).

• IP router or IP switch

Boot select and boot options

You should select the boot source before powering up the board for the first time.

Hailo 15 with HummingBoard has two boot options: serial boot (for recovery) and eMMC boot (the main option). To select a boot option, the DIP switch needs to be modified.

For more information, see HummingBoard Hailo 15 Boot Select

Generating Yocto image

The prebuilt artifacts are available here.

Navigate to the meta layer repo for the build instructions: meta-solidrun-arm-hailo.

Understanding boot artifacts

The following artifacts are generated by yocto build:

Booting the board:

The board is pre-flashed with a basic yocto image and AI demos.

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

2. Network connection
   The prebuilt image has a preset network configuration with a static IP 10.0.0.1. Connect your PC to the board with a 1GbE RJ45 patch cord and set the static IP of your PC interface to 10.0.0.2.

3. Optional: Camera connection
   To evaluate the demo application, connect the MIPI-CSI camera to the Hailo 15 SOM MIPI-CSI interface before starting the boot.

4. Power the board
   Plug in a power supply, and the board will start booting. You will see the boot log in the serial terminal:

Poky (Yocto Project Reference Distro) 4.0.2 hailo15 ttyS1

hailo15 login:

• Login: root

• Password: root

Running the demo applications

Using GStreamer

Gstreamer is a CLI application that allows you to send, receive, and convert video streams.

1. Install gstreamer

For Ubuntu/Debian distros:

For Fedora/RHEL distros:

For Windows:

• Download the Installer: Go to the GStreamer official website and download the appropriate installer for your Windows version.

• Run the Installer: Execute the downloaded file. During installation, select "Complete Installation" to install all basic plugins.

• Set Environment Variables: To use GStreamer from the command line, add GStreamer to your system's PATH as described here.

2. Run the gstreamer pipeline to start receiving a stream.

3. Run the demo application on the Hailo15 EVK:

Using VLC

Another option is to receive a stream using VLC media player.\

1. Install VLC

   For Ubuntu/Debian distros:

   For Fedora/RHEL distros:

   For Windows:

• Download the Installer: Go to the VLC official website and download the appropriate installer for your Windows version.

• Run the Installer: Execute the downloaded file. During installation, select "Complete Installation" to install all basic plugins.

2. Create a stream configuration file stream.sdp with the following content:

3. Open the stream.sdp in the vlc using the Media -> Open File tab.

4. Run the demo application on the target:

Flashing an eMMC

By default, when Linux is booted from eMMC, the eMMC root partition is mounted, which makes it difficult to reflash. The u-boot menu has a special entry that allows you to load a ramdisk from an HTTP server and boot to it.

1. Run an HTTP server on port 80 in the directory with the image

2. Reset the board. In the u-boot menu, select Boot to flashing ramdisk

3. The Board will grub a new image from the HTTP server and flash it to the eMMC.

4. Once the board is booted to the ramdisk, flash eMMC:

Flashing QSPI flash

Reflashing QSPI is only possible under Linux.

1. Download the flashing tool and install it into your system.

2. Set the S3 switch to the Serial download mode.

3. Close the serial terminal on your PC.

4. Reset the board.

5. Upload the uart flashing firmware into the SOM:

6. Reflash QSPI content:

Restoring corrupted eMMC u-boot image.

If the eMMC content is blank, the SPL bootloader will fall back to the UART Y-Modem mode. This will allow the user to send a new u-boot-tfa.itb file over the serial connection and then restore the eMMC content with tftp. If you see this in the boot log, the board expects u-boot over the uart. You can skip the reflashing u-boot env part.

U-Boot SPL 2022.01 (Feb 04 2024 - 18:42:25 +0000)
Loading Environment from SPIFlash... OK
U-Boot SPL boot source uart
CCCCCCCCCC

However, if the u-boot-tfa.itb was corrupted, the board will load a corrupted file and get stuck booting. To force SPL to the UART upload mode, the u-boot env has to be reflashed.

Modifying u-boot env to force uart boot mode

1. Modify the u-boot env to set uart boot mode for the SPL:

Find the line spl_boot_source=mmc2 and replace it with spl_boot_source=uart in the file u-boot-initial-env-uart.

2. Set the S3 switch to the Serial download mode.

3. Close the serial terminal on your PC.

4. Reset the board.

5. Upload the uart flashing firmware into the SOM:

6. Reflash u-boot environment:

7. Set the S3 switch back to the eMMC boot.

8. Open the serial connection and reset the boot. The board will boot to the SPL and expect the u-boot image to be transferred over the serial.

Uploading u-boot over uart

The SPL waits for the Y-modem transfer to upload the u-boot into the RAM. The latest minicom already has a built-in Y-modem transfer function. With minicom, press Ctrl+A, then S, select ymodem, and then select file u-boot-tfa.itb. Note: the transfer can take a few minutes. As soon as the u-boot is completely transferred, you will see the same u-boot entries, and you can restore eMMC content with tftp.

Restoring u-boot env

If you previously modified a u-boot env to force a serial mode, you need to restore it.

1. Set the S3 switch to the Serial download mode.

2. Close the serial terminal on your PC.

3. Reset the board.

4. Upload the uart flashing firmware into the SOM:

6. Reflash u-boot environment:

7. Set the S3 switch back to the eMMC boot:

8. Open the serial connection and reset the boot. The board will boot to the SPL and expect the u-boot image to be transferred over the serial.

List Of Supported OS

OS

OS
Open	Hailo 15 Yocto

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