|Dimensions||80mm x 55mm x 20mm|
|Release Date||April 2013|
|SoC||A20 @ 1Ghz|
|DRAM||1GiB DDR3 @ 480MHz|
|Power||DC 5V @ 2A|
|Video||HDMI (Type C - mini)|
|Audio||3.5mm headphone plug, HDMI,|
|Network||10/100Mbps Ethernet (Realtek RTL8201CP)|
|USB||2 USB2.0 Host, 1 USB2.0 OTG|
A new device by the same manufacturer is confusingly also called Marsboard A20. It is a completely different design though, with a SOM and a baseboard. This newer board is not documented on this page.
The board reads "www.MarsBoard.com" on top, and has an A20 SoC clearly visible.
Supported. When the fex file becomes available
- For building u-boot, use the "Marsboard_A20" or "Marsboard_A20_debug" target.
- The .fex file can be found in sunxi-boards as MANUFACTURER_DEVICE.fex
Everything else is the same as the manual build howto.
Tips, Tricks, Caveats
A button right next to the SATA connector triggers FEL mode.
Adding a serial port
On the P2 header, pins 64, 65 and 66 are ground, TX and RX, respectively. Either solder on some leads, or insert some pins according to our UART howto. Be warned though, this is a 2.0mm pitch connector, and not the usual 2.54mm.
- File: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) (The forums are awash in spam, and almost useless for purposes of information or support.)