Summary of Resource Downloads
Loader file
rk3528_spl_loader_v1.07.104.bin (for debian)
rock2a_android13_box_20240619_MiniLoader (for Android)
Operating System Image
debian xfce:
rock-2_bullseye_xfce_b1.output.img.xz
Android13 ：
rock2a_android13_box_20240619_gpt.img (used to start from SD-Card)
rock2a_android13_box_20240619_update.img (used to start from EMMC)
tip
These image is fully compatible with E20C, ROCK 2A, and ROCK 2F devices, all incorporating the RK3528 chip. The compatible method is as follow:
- Each of these three products employs distinct pull-down resistors on a shared ADC pin.
- Each device comes with a predefined ADC range value.
- During the u-boot initialization phase, the appropriate device tree is dynamically selected based on the read ADC value, thereby achieving seamless compatibility across these platforms.
Hardware Design
Radxa ROCK 2A V1.2 Version
v1.2 2D pdf
v1.2 Schematic Diagram pdf
v1.2 Component Placement Diagram pdf