Overview

This page contains the instructions to flash the eMMC on a SBC-3.5-RK3568 (E09) SECO board.

Requirements

Hardware

• MicroUSB cable (OTG).

• Linux Host PC.

Software

Download the needed software here:

• Rockchip rkdeveloptool - this guide uses the official open source Rockchip rkdeveloptoolpackage but any other Rockchip flashing utilities could be used. Here you can find more info about Rockchip flashing tools.

• Rockchip RK3568 loader - official Rockchip loader for RK3568.

• The OS image file (.wic) provided in the SBC-3.5-RK3568 (E09) product page.

Instructions

These are the instructions to be followed in case the device that needs to be flashed does not either have a bootloader:

1. Make sure there is no microSD card inserted in the slot J17 of the SBC-3.5-RK3568.

2. Connect your Linux Host PC to the microUSB connector J48 of the SBC-3.5-RK3568.

3. Turn on the switch SW1.

4. Power on the SBC-3.5-RK3568 board.

5. Turn the switch SW1 back off.

6. Run the command rkdeveloptool ld to make sure the Rockchip board is detected.

7. Flash the loader on the SBC-3.5-RK3568 device via the following command:

   $ sudo rkdeveloptool db loader.bin

8. Flash the .wic image in the board via the following command. Remember to substitute the <image-file>.wic with the file name of the image (e.g seco_rk3568_e09_edgehog-embedded-full-image-wayland_5-10-x_kirkstone_1-03-00_20240410.wic):

   $ sudo rkdeveloptool wl 0 <image-file>.wic

9. Wait for it to finish, then disconnect the microUSB cable and reboot the board. The SBC-3.5-RK3568 board will now run the new image.