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Revisions and Notes

Date	Owner	Revision	Notes
23 Feb 2022		1.0	Initial release
Table Of Contents

The following documentation provides a quick guide to boot from USB OTG port.

1. Clone the mfgtools project by running the following:

git clone https://github.com/NXPmicro/mfgtools.git

Please make sure to have cmake 3.19 or a newer version.

2. Install U-Boot binaries

3. Set the switches on the boot source selector as follows:

4. Serial connection

Connect your micro USB cable to your device.

You can refer to the serial connection section in one of our quick start guide pages - Cubox-M, HummingBoard Pulse.

5. Connect the Male to Male USB-A cable to the OTG port on your device.

Identify the OTG port
It’s the upper USB port. This holds true of all our i.MX8 based boards.

6. Use the following commands for loading the U-Boot:

cd <DIRPATH>/mfgtools/uuu/
sudo ./uuu <flash.bin-dir>/flash.bin

For more information about the uuu tools, you can refer to https://github.com/NXPmicro/mfgtools

The following is an example for i.MX8M-Plus Step-by-step:

1. Once you built the mfgtools, run the following to install the U-Boot binaries

wget https://solid-run-ignition.sos-de-fra-1.exo.io/imx8mp/Buildroot/flash-uboot-1g-and-3g.bin

You can build your own image using the runme.sh script here – https://github.com/SolidRun/imx8mp_build. The flash.bin should be under $ROOGitHub - SolidRun/imx8mp_build: IMX8M Plus buildroot build script.TDIR/build/imx-mkimage/iMX8M/flash.bin

2. Connect your micro USB cable to your device.

3. Connect the Male to Male USB-A cable to the OTG port on your device.

Make sure you can detect the USB = NXP Semiconductors in the usb devices list with the exact same vendor ID as shown in the below figure:

4. Change your current working directory and load the U-Boot:

cd <DIRPATH>/mfgtools/uuu/
sudo ./uuu <flash.bin-dir>/flash-uboot-1g-and-3g.bin

Then, you should be able to see the following:

At this point U-Boot has been loaded to RAM and is running.