A unified OpenIPC ground station image builder using Buildroot 2.

Supported GS Hardware

• RunCam Wifilink
• Emax Wyvern-Link
• Radxa Zero3 (choose one of the above)

Upgrade

• Copy the <vrx name>.tar.gz package to a FAT-formatted SD card and reboot.
• Copy the <vrx name>.tar.gz package to the DVR partition on the SD card and reboot.
• Copy the <vrx name>.tar.gz package to the DVR partition on the eMMC. Use scp, SMB, or gadget mode and reboot.
• Use sysupgrade -u -r for an online update. See sysupgrade --help for more options.
• Use make ssh-flash to flash a local build to BR2_BOARD_HOST. See menuconfig.
• Use make flash to flash a local build to the eMMC using rkdeveloptool (maskrom).
• Flash <vrx name>_sdcard.img using RKDevTool/rkdeveloptool, see: Wiki

Factory Reset

• Hold the Right button during boot.
• Run firstboot.

Gadget Mode

• Hold the Left button during boot to enable USB OTG gadget mode.

  Via the OTG port, you will get:

  • DVR access
  • Serial connection
  • Network connection (SBC is on 192.168.5.1)

Custom Build (Linux/WSL2)

Custom builds rely on Buildroot dependencies, as well as Docker or Podman, which are needed for Radxa's kernel and U-Boot.

When building in WSL2, ensure your WSL2 instance can run Docker.

git clone https://github.com/OpenIPC/sbc-groundstations.git
cd sbc-groundstations
./build.sh

Refer to Buildroot's documentation for instructions on customizing your build: Buildroot

Upgrade from Older SBC Version (Radxa Zero3 Based)

SBC-GS 2 Beta 2 and older versions will not boot squashfs-based systems. A new bootloader is required. The new bootloader will boot from the SD card and eMMC (in that order).

Option 1

• Boot the old image.
• Copy the new <vrx name>_u-boot.bin to your SBC.
• Replace the bootloader on the eMMC by executing the following command:

  dd if=/tmp/runcam_wifilink_u-boot.bin of=/dev/mmcblk0 seek=64 status=progress
  

Option 2

• Use RKDevTool/rkdeveloptool and flash <vrx name>_emmc_bootloader.img to the eMMC.

  How to recover RunCam VRX from a bad flash

  Note: This will erase all data on the internal flash.

Option 3

• Full replace the eMMC

  Flash <vrx name>_sdcard.img using RKDevTool/rkdeveloptool, see: Wiki

  or

  Use dd from SD booted system

  dd if=/tmp/<vrx name>_sdcard.img of=/dev/mmcblk0 status=progress
  

U-Boot Arguments

eMMC

setenv bootargs quiet splash init=/init root=PARTLABEL=rootfs ro rootwait 
mmc dev 0
load mmc 0:1 0x03000000 /boot/Image
load mmc 0:1 0x05000000 /boot/rockchip/rk3566-radxa-zero3.dtb
booti 0x03000000 - 0x05000000

SD Card

setenv bootargs quiet splash init=/init root=PARTLABEL=rootfs ro rootwait
mmc dev 1
load mmc 1:1 0x03000000 /boot/Image
load mmc 1:1 0x05000000 /boot/rockchip/rk3566-radxa-zero3.dtb
booti 0x03000000 - 0x05000000

CC Edition Maintained by @zhouruixi

See the CC branch

• Radxa zero 3W/E v0.9-beta