|Dimensions||181mm x 121mm x 10.5mm|
|Release Date||April 2013|
|SoC||A13 @ 1Ghz|
|DRAM||512MiB DDR3 @ 432MHz (Micron MT41J256M16HA-125 256X16DDR3 HL)|
|NAND||4GB (Samsung K9GBG08U0A)|
|Power||DC 5V @ 2A, ????mAh 3.7V Li-Ion battery|
|LCD||800x480 (7" 16:9)|
|Touchscreen||5-finger capacitive (Silead GSL1680)|
|Audio||3.5mm headphone plug, built-in microphone.|
|Network||WiFi 802.11 b/g/n (Realtek RTL8188ETV)|
|USB||1 USB2.0 OTG|
|Camera||640x480 (VGA) front-facing, Optional rear-facing camera|
A standard Q8 format, A13 based tablet, but with separate UART pads.
The PCB is clearly marked HSG_H702_V1.2.
In android, under Settings->About Tablet, you will find:
- Model Number: SoftwinerEVB
- Build Number: nuclear_evb-eng 4.0.4 IMM76D 20130418test-keys
The android strings are not helpful as both are generic A13 Allwinner strings. The only option to properly identify this device is by opening up the case and reading the markings on the board.
- For building u-boot, use the "A13_MID" target.
- The .fex file can be found in sunxi-boards as hsg_h702.fex
Everything else is the same as the manual build howto.
Use the sun5i-a13-hsg-h702.dts device-tree file for the mainline kernel.
Tips, Tricks, Caveats
The Volume+ button triggers FEL mode.
Adding a serial port (voids warranty)
See the Q8 tablet format disassembly page.
Locating the UART
On the front of the mainboard, there are two test pads next to the SoC. Solder on some wires according to our UART howto. These pads are connected to UART1, and are not multiplexed with the SD card.