MarsBoard A20

The MarsBoard was a short-lived credit-card sized, extendable board with an Allwinner A20 SoC. It is an update of the MarsBoard_A10.

A new version of the MarsBoard_A20 is now available on the market. It comes with an A20 SOM board + Base board and use new features.

= Identification = The board reads "www.MarsBoard.com" on top, and has an A20 SoC clearly visible.

In android, under Settings->About Tablet, you will find:


 * Model Number:
 * Build Number:

= Sunxi support =

Current status
Supported

Images
None at this time.

Cubieboard2 and Cubietruck image are working well on the MarsBoard_A20. But the script.bin file need to be replaced by the MarsBoard A20 one.

Here is a good topic about how to do linux SDCard for MarsBoard A20 from Cubieboard2 SD image: HOWTO: run cubieboard linux images on marsboard a20

Manual build

 * For building u-boot, use the "Marsboard_A20" or "Marsboard_A20_debug" target.
 * The .fex file can be found in sunxi-boards as

Everything else is the same as the manual build howto.

Mainline U-Boot
For building mainline u-boot, use the "" target.

Mainline kernel
Use the device-tree file for the mainline kernel.

= Tips, Tricks, Caveats =

FEL mode
The button triggers  FEL mode.

To enter in FEL mode the unique button on the top of the board near the SATA connector need to be pushed before and during power up the board.

= Adding a serial port (voids warranty) =



Locating the UART
On the P2 header, pins 64, 65 and 66 are ground, TX and RX, respectively. Attach some 2.0mm pitch leads according to our UART howto.

= Pictures =

= Also known as =

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= See also =


 * MarsBoard Schematic V1.3.pdf
 * Homepage. Amazingly, no information on the Marsboard A20 is still available there. That's how shortlived this device was.
 * MarsBoard Forums (A10/A20)

Manufacturer images
Index of /marsboard