Semitime Qt840a

This HTPC uses a pretty common case design, and sometimes can be found as the Q5 or I12_TvBox or unbranded. But whereas the Q5 or I12_TvBox use a Ampak AP6210 Wifi/BT module, the QT840 uses the Ampak AP6330.

= Identification =

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


 * Model Number: SoftwinerEvb
 * Build Number: homelet_sugar 4.2.2 JDQ39 xxxxx test-keys

= Sunxi support =

Current status
Supported.

Manual build

 * For building u-boot, use the "qt840a" target.
 * The .fex file can be found in sunxi-boards as qt840a.fex

Everything else is the same as the manual build howto.

Mainline kernel
Use the sun7i-a20-i12-tvbox.dts device-tree file for the mainline kernel.

= Tips, Tricks, Caveats =

FEL mode
The push button on the rearside of the board triggers FEL mode.

JTAG
There are some JTAG pads right next to the UART pads. Here is the pin-out:
 * TP3: JTAG-MS
 * TP4: JTAG-CK
 * TP5: JTAG-DO
 * TP6： JTAG-DI

= Adding a serial port (voids warranty) =



Device disassembly
Only clips attach the top of the case to the rest of it. Insert your plastic tool along the top edge, and gently push the outside rim outwards, the clips should soon release.

Locating the UART
There are some clearly visible test pads next to the SoC. All you need to do is attach some wires according to our UART howto.

Pin-out:
 * TP1: UART0-TX
 * TP2: UART0-RX

= Pictures =

= Also known as =

= See also =