Rock3/dev/usb-install
Install on eMMC from USB port
This page describes how to download and install the image on eMMC and boot on ROCK 3. You need at least the following. ROCK 3 supports maskrom mode, which is a special running mode the CPU is waiting for command from USB OTG port. The PC tool we use to communicate with ROCK 3 in maskrom mode is rkdevelop tool, an open source tool by Rockchip.