Mixtile LOFT-Q
| Mixtile LOFT-Q | |
|---|---|
 | |
| Manufacturer | Focalcrest |
| Dimensions | 120 mm x 120 mm |
| Website | |
| Specifications | |
| SoC | A31 @ 1Ghz |
| DRAM | 2GiB DDR3 @ 312MHz |
| eMMC | 8GB |
| Power | DC 12V @ 4A |
| Features | |
| Video | HDMI (Type A - full) |
| Audio | toslink plug, HDMI, on-board microphone |
| Network | WiFi 802.11 b/g/n + BT (AP6234), 10/100/1000Mbps Ethernet, Zigbee NXP JN5168 |
| Storage | SD SATA |
| USB | 4 USB2.0 Host |
| Headers | UART, JTAG, LCD, SPI, TWI, RTP, CSI, MIPI CSI, MIPI DSI, IR |
Identification
The board reads "Mixtile LOFT-Q"
The board comes with Android 4.4.2 (3.3.0 kernel) preloaded in the EMMC.
- Model Number: Softwinner
Sunxi support
Current status
The Mixtile LOFT-Q is only partially supported, benefited from Humming bird.
Sunxi Kernel
Like all A31 based devices, there is no support in our sunxi kernel.
Sunxi U-Boot
Linux-sunxi's U-Boot currently lacks SPL support. This means that you have to chain load it from Allwinner's bootloader How?.
Mainline kernel
Mainline kernel support is included in 3.17. Currently only UARTs, USB, I2C, and GMAC are supported.
Use the sun6i-a31-hummingbird.dtb device-tree file for the mainline kernel.
Mainline U-Boot
Images
HW-Pack
BSP
Manual build
- For building u-boot, use the "MANUFACTURER_DEVICE" target.
- The .fex file can be found in sunxi-boards as hummingbird_a31.fex
Everything else is the same as the manual build howto.
Tips, Tricks, Caveats
FEL mode
The U-Boot button triggers FEL mode. See BROM for more information on the boot sequence.
Datasheet
Will soon be released.
Expansion Ports
The Mixtile LOFT-Q exposes 3 x 60 pins 0.5 mm pitch connectors with lots of expansion possibilities.
| J4 "CSI/MIPI-DSI" | |||
|---|---|---|---|
| 2x30 Header | |||
| 1 | CSI-D0 | 2 | CSI-D1 |
| 3 | CSI-D2 | 4 | CSI-D3 |
| 5 | CSI-D4 | 6 | CSI-D5 |
| 7 | CSI-D6 | 8 | CSI-D7 |
| 9 | CSI-D8 | 10 | CSI-D9 |
| 11 | CSI-D10 | 12 | CSI-D11 |
| 13 | GND | 14 | CSI-HSYNC |
| 15 | CSI-VSYNC | 16 | TWI0-SCK |
| 17 | TWI0-SDA | 18 | GND |
| 19 | CSI-MCLK | 20 | CSI-PCLK |
| 21 | GND | 22 | VDD1V8-CSI |
| 23 | VDD1V8-CSI | 24 | GND |
| 25 | VCC-5V | 26 | VCC-5V |
| 27 | GND | 28 | VCC-3V3 |
| 29 | VCC-3V3 | 30 | GND |
| 31 | MCSI-MCLK | 32 | NC |
| 33 | NC | 34 | GND |
| 35 | DSI-D0N | 36 | DSI-D0P |
| 37 | GND | 38 | DSI-D1N |
| 39 | DSI-D1P | 40 | GND |
| 41 | DSI-D2N | 42 | DSI-D2P |
| 43 | GND | 44 | DSI-D3N |
| 45 | DSI-D3P | 46 | GND |
| 47 | DSI-CKN | 48 | DSI-CKP |
| 49 | "GND" | 50 | SPDIF-IN |
| 51 | SPDIF-OUT | 52 | GND |
| 53 | I2S1-DIN | 54 | I2S1-BCLK |
| 55 | I2S1-LRCK | 56 | I2S1-MCLK |
| 57 | EARGND2 | 58 | LRADC0 |
| 59 | EARGND2 | 60 | LRADC0 |
| J5 "" | |||
|---|---|---|---|
| 2x30 Header | |||
| 1 | VCC-5V | 2 | VCC-5V |
| 3 | GND | 4 | VCC-LCD |
| 5 | VCC-LCD | 6 | GND |
| 7 | UART4-TX | 8 | UART4-RX |
| 9 | GND | 10 | VCC-JTAG |
| 11 | VCC-JTAG | 12 | AP-RESET# |
| 13 | TMS0 | 14 | TCK0 |
| 15 | TDO0 | 16 | TDI0 |
| 17 | JTAG-SEL0 | 18 | GND |
| 19 | SPI0-MOSI | 20 | 'SPI0-MISO |
| 21 | SPI0-CLK | 22 | SPI0-CS0 |
| 23 | GND | 24 | CSI2-D0N |
| 25 | CSI2-D0P | 26 | GND |
| 27 | CSI2-D1N | 28 | CSI2-D1P |
| 29 | GND | 30 | CSI2-D2N |
| 31 | CSI2-D2P | 32 | GND |
| 33 | CSI2-D3N | 34 | CSI2-D3P |
| 35 | GND | 36 | DSI-D0P |
| 37 | CSI2-CKP | 38 | GND |
| 39 | TWI3-SCK | 40 | TWI3-SDA |
| 41 | GND | 42 | MCS-MCLK1 |
| 43 | GND | 44 | CAM-R-STBY-EN |
| 45 | CAM-R-RESET# | 46 | GND |
| 47 | GPIO-PH0 | 48 | GPIO-PH1 |
| 49 | GPIO-PH2 | 50 | GPIO-PH3 |
| 51 | GPIO-PH4 | 52 | GPIO-PH5 |
| 53 | GPIO-PH6 | 54 | GPIO-PH7 |
| 55 | GPIO-PH8 | 56 | GPIO-PH29 |
| 57 | GPIO-PH30 | 58 | GND |
| 59 | USB-DP0 | 60 | USB-DM0 |
| J6 "LCD/LVDS" | |||
|---|---|---|---|
| 2x30 Header | |||
| 1 | LVDS0-D0P (LCD0-D0) | 2 | LVDS0-D0N (LCD0-D1) |
| 3 | GND | 4 | LVDS0-D1P (LCD0-D2) |
| 5 | LVDS0-D1N (LCD0-D3) | 6 | GND |
| 7 | LVDS0-D2P (LCD0-D4) | 8 | LVDS0-D2N (LCD0-D5) |
| 9 | GND | 10 | LVDS0-CLKP (LCD0-D6) |
| 11 | LVDS0-CLKN (LCD0-D7) | 12 | GND |
| 13 | LVDS0-D3P (LCD0-D8) | 14 | LVDS0-D3N (LCD0-D9) |
| 15 | GND | 16 | LVDS1-D0P (LCD0-D10) |
| 17 | LVDS1-D0N (LCD0-D11) | 18 | GND |
| 19 | LVDS1-D1P (LCD0-D12) | 20 | LVDS1-D1N (LCD0-D13) |
| 21 | GND | 22 | LVDS1-D2P (LCD0-D14) |
| 23 | LVDS1-D2N (LCD0-D15) | 24 | GND |
| 25 | LVDS1-CLKP (LCD0-D16) | 26 | LVDS1-CLKN (LCD0-D17) |
| 27 | GND | 28 | LVDS1-D3P (LCD0-D18) |
| 29 | LVDS1-D3N (LCD0-D19) | 30 | GND |
| 31 | LCD0-D20 | 32 | LCD0-D21 |
| 33 | LCD0-D22 | 34 | LCD0-D23 |
| 35 | LCD0-CLK | 36 | LCD0-HSYNC |
| 37 | LCD0-DE | 38 | LCD0-VSYNC |
| 39 | LCD0-PWM | 40 | LCD0-BL-EN |
| 41 | GND | 42 | CTP-WAKE |
| 43 | CTP-INT | 44 | TWI1-SCK |
| 45 | TWI1-SDA | 46 | GND |
| 47 | RTP-X1 | 48 | RTP-X2 |
| 49 | RTP-Y1 | 50 | RTP-Y2 |
| 51 | GND | 52 | VCC2V8-LCD |
| 53 | VCC2V8-LCD | 54 | VCC2V8-LCD |
| 55 | GND | 56 | VCC1V8-LCD |
| 57 | VCC2V8-LCD | 58 | GND |
| 59 | VCC-5V | 60 | VCC-5V |
| J21 "LED/IR/POWER-ON" | |||
|---|---|---|---|
| 2x4 Header | |||
| 1 | VCC-NRF | 2 | GND |
| 3 | IR-RX | 4 | PWR-ON |
| 5 | LED1-R | 6 | LED2-G |
| 7 | LED3-B | 8 | GND |
| J7 "AUDIO IN/OUT" | |||
|---|---|---|---|
| 2x3 Header | |||
| 1 | SPKL | 2 | SPKR |
| 3 | AGND | 4 | AGND |
| 5 | LINEINL | 6 | LINEINR |
Adding a serial port
The UART header is next to USB host. Just attach some leads according to our UART howto.
