TZX-Q8-713B7

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TZX-Q8-713B7
TZX-Q8-713B7 Front.png
Manufacturer TZX Technologies
Dimensions 182mm x 120mm x 10mm
Release Date August 2012
Specifications
SoC A13 @ 1Ghz
DRAM 512MiB DDR3 @ 408MHz
NAND 4GB
Power DC 5V @ 2.0A, 2080mAh 3.7V Li-Ion battery
Features
LCD 800x480 (7" 5:3)
Touchscreen 5-finger capacitive (Elan EKT3632)
Audio 3.5mm headphone plug, internal speaker, internal microphone
Network WiFi 802.11 b/g/n (Realtek RTL8188EUS)
Storage µSD
USB 1 USB2.0 OTG
Camera 0.3MP (640x480) front (Galaxycore GC0308)

Contents

Identification

The PCB has the following silkscreened on it:

TZX-Q8-713B7

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

  • Model Number: SoftwinnerEvb
  • Build Number: 713B7.B1.50.TZX.R01.eng.0121

Current status

The device is supported and maintained in mainline U-Boot. There is no mainstream kernel support at this point.

Some features are missing on Linux (sunxi-3.4 branch):

  • Touchscreen support is not there but external patches are available
  • Accelerometer support is not there but external patches are available

Manual build

  • For building u-boot, use the "TZX-Q8-713B7" target.
  • The .fex file can be found in sunxi-boards as tzx-q8-713b7.fex

Everything else is the same as the manual build howto.

Mainline U-Boot

For building mainline U-Boot, use the TZX-Q8-713B7 target.

Tips, Tricks, Caveats

FEL mode

Any button (VOL-, VOL+) triggers FEL mode.

Adding a serial port (voids warranty)

TZX-Q8-713B7 UART pads

The devices uses UART1 for U-Boot and Linux messages: make sure to properly set console=ttyS1 and spawn getty on ttyS1.

Device disassembly

See the Q8 tablet format disassembly page.

Locating the UART

Uart has 2 pads on the back of the PCB (near the SoC). On the A13, UART1 is on pins 151 and 152, which are left of the SoC. Just solder on some wires according to the UART howto

Pictures

Also known as

  • Q88

See also

Manufacturer images

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