Semitime g2

This is an obvious Rikomagic MK802+ clone, but it contains an A10s SoC instead. It is not clear whether it was ever sold by Rikomagic itself, or whether it was only marketed by third parties.

= Identification =

This device is clearly marked as an MK802+ on the case, and is often sold as such. It however has 1GB of RAM and an A10s chip inside. The paper manual mentions "AK-212MinPC". The board is marked as "ST-G2", together with the kernel version strings, this led us to the manufacturer.

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


 * Model Number: SoftwinnerEvb
 * Kernel-Version: 3.0.8 qliu00@semitime #6 Mon Dec 10:44:01 CST 2012
 * Build Number: elite_nm307_v11-eng 4.0.4 IMMQ76D 20121210 test-keys

Incidentally, that's the same android image that is running on the Megafeis A08.

= Sunxi support =

Current status
Supported.

Manual build

 * For building u-boot, use the "mk802_a10s" target.
 * The .fex file can be found in sunxi-boards as mk802_a10s.fex

Everything else is the same as the manual build howto.

= Tips, Tricks, Caveats =

FEL mode
There is a special button to trigger FEL mode. You can reach it through the bottom-left hole of the top cover of the device.

= Adding a serial port (voids warranty) =



Device disassembly
The three piece case is clicked together. Do not try to get the semi-transparent bit around the USB Host connector off, as it is clipped into the top and you could damage the clip. Just gently push your plastic tool between the bottom and the top, and push the top part of the shell outwards. You will soon hear the clips release.

Locating the UART
There are two pads just below the A10s SoC, all you have to do is attach some wires according to the UART howto.

This needs to be verified, but it seems as if the VER:1.0 revision of this board has bad pad routing, and that the two pads are PB11 and PB14 instead. This makes them completely useless for a UART. The second revision apparently has differently routed pads, which are connected to UART0.

= Pictures =

= Also known as =


 * It is often branded as an A10s based MK802+, but it just shares the external packaging and has MK802+ written on the top cover.

= See also =


 * Rikomagic MK802: The 512MiB A10 based original, which has the same case.
 * Rikomagic MK802+: The 1GiB A10 based device, which also has the same case.
 * Megafeis A08: Different board, different exterior, but it has the same android identification strings.