Rock 4 SE 4GB

The industry-leading single-board computer ROCK 4 SE was created by OKdo and Radxa. Based on the potent Rockchip RK3399-T CPU, it is a huge, dependable, strong, low-power, and high-performing SBC. 4GB dual channel LPDDR4 RAM, an Arm Mali-T860MP4 GPU, and a LITTLE Arm Dual Cortex-A72 CPU. A long list of top-notch features is available on the board, including an onboard antenna, RTC, WiFi 802.11 b/g/n/ac, Bluetooth 5 and BLE modules, an audio jack with microphone in, a 4K HDMI port 60fps, user-configurable USB HOST/OTG mode, M.2 memory expansion, an eMMC robust memory slot, and many more.

Technical Specifications:

• Processor: RK3399T, Arm® big.LITTLE™ technology (Dual Cortex®A72; frequency 1.5Ghz, quad CortexA53, frequency 1.0Ghz)
• GPU: Arm Mali™ T860MP4 GPU, supporting OpenGL ES 1.1/2.0/3.0/3.1/3.2, Vulkan 1.0, Open CL 1.1 1.2, DX11
• RAM: Dual channel 4GB 64bit LPDDR4
• Dual display via HDMI and MIPI DSI supporting mirror or extend modes H.265/VP9 (HEVC) hardware decode (up to 4Kp60)
• H.264 hardware decode (up to 1080p60)
• WiFi 5/BT 5.0, BLE, Gigabit Ethernet
• USB TypeC™ PD/QC power input
• Micro SD, eMMC/M.2 (M key) connectors
• Real-time clock (RTC)
• Software: ARMv8 Instruction Set, Debian/Ubuntu Linux support, Android 7.1/Android 9.0/Android 10/Android 11 support, GPU-enabled AI stack such as Caffe, Hardware access /control library for Linux/Android
• Operation Temperature: 0∼50 ℃/ Storage Temperature: -20∼80 ℃

Resources:

Common How-to

• Flash the image to NAND
• Flash the image to SD card
• Upgrade NAND from SD card
• Backing up
• Recovery ext4 file system
• Serial console debugging
• Unbrick Rock
• Resize linux rootfs
• Using IR on Rock
• Using USB on Rock
• Using UART on Rock
• Using Wireless on Rock
• Using Camera on Rock
• Using Lvds,Tp,Camera on Rock
• Run Rock Lite
• Add new hdmi resolution
• wringX:GPIO/I2C/SPI/ISR/UART/PWM
• Using gpio In Android apk
• Config power saving

Linux

• Build your own kernel and boot into Linux
• Build Linux Mainline
• Make Ubuntu rootfs
• Make Debian rootfs
• Make SD booting images
• Audio on Rock
• Display on Rock
• Using LEDs on Rock
• Setting up VNC server on Rock
• Boot Lubuntu from SD card OBSOLETE

Android

• ADB under Windows
• ADB under Linux
• Build Android image for RR
• Making bootable SD card
• Make radxa as a WIFI_AP
• Backup your apps
• Some tips for android development

Others

• Dual boot Android/Linux
• Boot FreeBSD

Bootloader

• Boot Loader
• U-Boot