Radxa Cubie A7A

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Radxa Cubie A7A
Radxa Cubie A7A top.jpg
Manufacturer Radxa
Dimensions 56mm x 85mm
Release Date July 2025
Website Radxa Cubie A7A
Specifications
SoC A733
DRAM 2/4/8/16GiB LPDDR5 @ 4800 MT/s
Power DC 5V @ 4A via USB-C connector
Features
Video Standard HDMI 2.0b, MIPI FPC connector
Audio Line out on header, HDMI audio
Network WiFi 802.11 a/b/g/n/ac/ax (Quectel FCU760K), 1x 10/100/1000Mbps Ethernet (Maxio MAE0621A), supports PoE
Storage µSD, 128Mbit SPI flash (Winbond W25Q128JWPIQ), eMMC Module, UFS Module
USB 3 X USB2.0 Host, 1 X USB3.0 HOST, 1x USB 2.0 OTG Type C
Other 1x PCIe 3.0 FPC

Radxa Cubie A7A is the 2nd Allwinner based SBC introduced by Radxa, in a credit card size form factor.

Identification

The PCB has a version number silkscreened at the top: 

Radxa Logo
Cubie A7A V1.10

General Notes

Firmware download port is the USB C power port.

Radxa BSP

allwinner-target: https://github.com/radxa/allwinner-target/tree/target-a733-v1.4.6
allwinner-device: https://github.com/radxa/allwinner-device/tree/device-a733-v1.4.6
allwinner-bsp: https://github.com/radxa/allwinner-bsp/tree/cubie-aiot-v1.4.6
kernel: https://github.com/radxa/kernel/tree/allwinner-aiot-linux-5.15
u-boot: https://github.com/radxa/u-boot/tree/cubie-aiot-v1.4.6

Repository path in TinaSDK: 

allwinner-target => target/a733/
allwinner-device => device/config/chips/a733/
allwinner-bsp    => bsp/
kernel           => kernel/linux-5.15/
u-boot           => brandy/brandy-2.0/u-boot-2018/

Allwinner SDK

Tina SDK 1.4.6(partially uploaded):: https://gitlab.com/tina5.0_aiot
Tina SDK 1.4.6(complete repo package, use command 'repo sync -l' to restore directory structure):
Mega: https://mega.nz/file/kFtD0BYY#zm3FXLiLK9SfOFss3BGY1Kx714BFBqyyPeYeE5FvOw0
BaiduPan: https://pan.baidu.com/s/1zcVq4l-rij7RPmJ92nccZg password: 547b
NOTE:
Modify the name of the spl-pub folder under the brandy directory, for example, change it
to spl-pub-bak, so that it no longer participates in compilation. The files compiled
in this directory will replace the binary files in the devcie/xxxx/configs/a733/bin
directory. However, we now need to temporarily use the binary files provided by
Allwinner to achieve a better experience.

Tools

For Allwinner Phoenix Image:
Linux Image Flash tool(CLI): https://dl.radxa.com/tools/linux/phoenixconsole-3.0.9_amd64.deb
Windows Image Flash tool(UI): https://dl.radxa.com/tools/windows/PhoenixCard_V4.3.2_20250331_1604_Release.zip


Manual build

  • 📝 Configuration
source ./build/envsetup.sh
./build.sh config
  • 📊 Configuration Example
Debian xfce image example:
========ACTION List: mk_config ;========
options : 
All available platform:
   0. android
   1. linux
Choice [android]: 1
All available linux_dev:
   0. bsp
   1. dragonboard
   2. buildroot
   3. debian
   4. yocto
Choice [bsp]: 3
All available kern_name:
   0. linux-5.10
   1. linux-5.15
Choice [linux-5.10]: 1
All available ic:
   0. a523
   1. a527
   2. a733
   3. t527
   4. t736
Choice [a523]: 2
All available board:
   0. QA
   1. cubie_a7a
   2. fpga
   3. perf1
   4. pro2
   5. pro3
Choice [QA]: 1
All available flash:
   0. default
   1. nor
Choice [default]: 0
cat: /home/feng/work/project/allwinner/a527/tina_co_develop/debian/.config: No such file or directory
All available rootfs files:
   0. linaro-bullseye-gnome-arm64.tar.gz
   1. linaro-bullseye-lite-arm64.tar.gz
   2. linaro-bullseye-lxde-arm64.tar.gz
   3. linaro-bullseye-xfce-arm64.tar.gz
   4. linaro-bullseye-xfce-ros2-humble-arm64.tar.gz
Choice [linaro-bullseye-gnome-arm64.tar.gz]: 3
Setup BSP files
  • 🔨 Building Image
./build.sh
  • 📦 Packing Image
./build.sh pack

You will find the generated image in the ‘out’ directory.

U-Boot

./build.sh bootloader

# Running the command './build.sh bootloader' will execute the build.sh script located in the brandy/brandy-2.0/ directory.
# Alternatively, you can manually execute the following command in this directory:

cd brandy/brandy-2.0/
./build.sh -p sun60iw2p1 -b a733

# This will using sun60iw2p1_defconfig under the u-boot-2018/configs directory.
# And compile the components required for the bootloader, including boot0, fes1, sboot, and u-boot.

output: 
u-boot-sun60iw2p1.bin 
boot0_sdcard_sun60iw2p1.bin
fes1_sun60iw2p1.bin
sboot_sdcard_sun60iw2p1.bin 
etc.
Viewing the compile log will reveal the folder where the compiled files are located.

+-----+--------+--------------------------------------------------------------------------------------------------------------------+
| num | type   | use                                                                                                                |
+=====+========+====================================================================================================================+
| 1   | boot0  | boot0 is the first stage bootloader (FSBL) in the Allwinner chip boot process.                                    |
|     |        | It is responsible for initializing basic hardware (such as DRAM, clocks, etc.) and loading the next stage bootloader |
|     |        | (such as U-Boot).                                                                                                  |
+-----+--------+--------------------------------------------------------------------------------------------------------------------+
| 2   | fes    | The program run during firmware burning.                                                                           |
+-----+--------+--------------------------------------------------------------------------------------------------------------------+
| 3   | sboot  | sboot is the bootloader for secure boot. It is responsible for verifying the signatures of subsequent bootloaders |
|     |        | (such as U-Boot or the Linux kernel) to ensure the integrity and security of the boot chain.                        |
+-----+--------+--------------------------------------------------------------------------------------------------------------------+
| 4   | U-Boot | The universal boot loader.                                                                                         |
+-----+--------+--------------------------------------------------------------------------------------------------------------------+

Linux Kernel

# 1) Ensure you have performed the parameter configuration with ‘./build.sh config’ before running this command.
$./build.sh kernel

# 2）This will use the defconfig file located at device/config/chips/a733/configs/cubie_a7a/debian/linux-5.15/bsp_defconfig and
the device tree file at device/config/chips/a733/configs/cubie_a7a/linux-5.15/board.dts.


# 3）You will find the kernel image in the out/a733/cubie_a733/debian/ directory.

+-----+-----------+--------------------------------------------------------+
| num | type      | use                                                    |
+=====+===========+========================================================+
| 1   | boot.img  | bootimg containing the kernel and device tree   |
+-----+-----------+--------------------------------------------------------+
| 2   | sunxi.dtb | The device-tree blob                                   |
+-----+-----------+--------------------------------------------------------+

Expansion ports

The Cubie A7A has a 40-pin, 0.1" populated connector with several low-speed interfaces.

FUNC9 FUNC8 FUNC7 FUNC6 FUNC5 FUNC4 FUNC3 FUNC2 FUNC1 Pin# Pin# FUNC1 FUNC2 FUNC3 FUNC4 FUNC5 FUNC6 FUNC7 FUNC8 FUNC9 FUNC10
+3.3V 1 2 +5.0V
PJ-EINT23 LCD0-D9 TWI11-SDA TWI3-SDA TWI7-SDA UART2-CTS UART3-RX PWM1-5 PJ23 3 4 +5.0V
PJ-EINT22 LCD0-D8 TWI11-SCK TWI3-SCK TWI7-SCK UART2-RTS UART3-TX PWM1-4 PJ22 5 6 GND
PB-EINT0 JTAG-MS LCD0-D0 DSI-TRIG-LCD-TE1 SPI2-CS0 UART0-TX UART2-TX PB0 7 8 PB9 UART0-TX I2S0-DIN2 I2S0-DOUT2 PWM1-1 WATCHDOG-SIG LCD0-D16 TWI8-SCK TWI0-SCK PB-EINT9
GND 9 10 PB10 UART0-RX I2S0-DIN3 I2S0-DOUT3 PWM1-2 PLL-LOCK-DBG LCD0-D17 TWI8-SDA TWI0-SDA PB-EINT10
PB-EINT1 JTAG-CK LCD0-D1 SPI2-CLK UART0-RX UART2-RX PB1 11 12 PK0 MCSIA-D0N UART6-DCD I2S4-BCLK HDMI-CEC TWI1-SDA NCSI1-HSYNC SGPIO-SLOAD PK-EINT0
PL-EINT6 S-PWM0-4 S-IR-RX S-SPI0-MOSI S-UART0-TX S-JTAG-DO PL6 13 14 GND
PL-EINT7 S-PWM0-5 S-SPI0-MISO S-UART0-RX S-JTAG-DI PL7 15 16 PJ24 PWM1-6 UART4-TX TWI4-SCK SPI3-CLK PJ-EINT24
+3.3V 17 18 PJ25 PWM1-7 UART4-RX TWI4-SDA SPI3-MOSI PJ-EINT25
PD-EINT12 PWM1-2 SPI1-MOSI EINK-D12 DSI1-D1P LVDS1-D1P LCD0-D18 PD12 19 20 GND
PD-EINT13 PWM1-3 SPI1-MISO EINK-D13 DSI1-D1N LVDS1-D1N LCD0-D19 PD13 21 22 PL10 S-UART0-TX S-TWI2-SCK S-UART1-TX S-PWM0-8 PL-EINT10
PD-EINT11 PWM1-1 SPI1-CLK EINK-D11 DSI1-D0N LVDS1-D0N LCD0-D15 PD11 23 24 PD10 LCD0-D14 LVDS1-D0P DSI1-D0P EINK-D10 SPI1-CS0 PWM1-0 PD-EINT10
GND 25 26 PD14 LCD0-D20 LVDS1-D2P DSI1-CKP EINK-D14 SPI1-HOLD UART3-RTS PD-EINT14
PD-EINT1 UART3-RX TWI2-SDA EINK-LEH DSI1-D2N LVDS1-CKN LCD0-D23 PD17 27 28 PD16 LCD0-D22 LVDS1-CKP DSI1-D2P EINK-OEH TWI2-SCK UART3-TX PD-EINT16
PK-EINT5 JTAG-MAS-CK NCSI1-D14 SPI3-CLK PWM1-9 PWM1-8 PCIE-CLKREQN MCSIA-CKP PK5 29 30 GND
PK-EINT6 JTAG-MAS-DO NCSI1-D13 SPI3-MOSI UART2-RTS UART4-TX TWI2-SCK MCSIA-D2N PK6 31 32 PD16 LCD0-D22 LVDS1-CKP DSI1-D2P EINK-OEH TWI2-SCK UART3-TX PD-EINT16
PK-EINT7 JTAG-MAS-DI NCSI1-D12 SPI3-MISO UART2-CTS UART4-RX TWI2-SDA MCSIA-D2P PK7 33 34 GND
PK-EINT2 SGPIO-SDATAIN NCSI1-PCLK TWI5-SDA HDMI-SDA I2S4-LRCK UART6-DTR MCSIA-D1N PK2 35 36 PK1 MCSIA-D0P UART6-DSR I2S4-MCLK HDMI-SCL TWI1-SCK NCSI1-VSYNC SGPIO-SCLK PK-EINT1
PK-EINT8 JTAG-MAS-NTRST NCSI1-D11 SPI3-CS1 UART2-TX UART4-RTS MCSI0-MCLK MCSIA-D3N PK8 37 38 PK3 MCSIA-D1P UART6-RI I2S4-DIN0 I2S4-DOUT1 TWI5-SCK NCSI1-MCLK SGPIO-SDATAOUT PK-EINT3
GND 39 40 PK4 MCSIA-CKN PCIE-WAKEN I2S4-DOUT0 I2S4-DIN1 SPI3-CS0 NCSI1-D15 JTAG-MAS-MS PK-EINT4

Sunxi support

Current status

Not Supported

Pictures

  • Radxa Cubie A7A gpio.jpg
  • Radxa Cubie A7A connectors.jpg
  • Radxa Cubie A7A bottom.jpg

Schematics

See also

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