Merrii A80 Optimus Board

From linux-sunxi.org
Jump to: navigation, search
Merrii A80 Optimus Board
A80 Optimus front.jpg
Manufacturer Merrii
Dimensions 135mm x 70mm
Release Date August 2014
Website Device Product Page
Specifications
SoC A80 @ 1008Mhz
DRAM 2GiB DDR3 @ 672MHz (SK hynix H5TQ4G63AFR-PBC 4Gb * 4)
NAND 16GB eMMC (Samsung KLMAG2WEMB-B031)
Power DC 5V @ 3A, optional Li-Ion battery
Features
Video HDMI (Type A - full)
Audio 3.5mm headphone plug
Network WiFi 802.11 b/g/n (Ampak AP6330), 10/100/1000Mbps Ethernet (Realtek RTL8211E)
Storage eMMC, µSD
USB 2 USB2.0 Host, 1 USB3.0 OTG
Other IRDA, Bluetooth (Ampak AP6330)

The A80 Optimus Board is a official development board for the Allwinner A80 SoC, targeting both developers and consumers.

Contents

Identification

The board has a clearly recognizable Allwinner logo, the name "Allwinner Tech", and "OPTIMUS BOARD", all uppercase, in the lower right hand corner.

Sunxi support

Current status

Sunxi Kernel

Like all A80 based devices, there is no support in our sunxi kernel.

Sunxi U-Boot

Like all A80 based devices, there is no support in u-boot-sunxi.

Mainline kernel

Mainline kernel support is queued up for 3.19. Currently only UARTs are supported.

Use the sun9i-a80-optimus.dtb device-tree file for the mainline kernel.

Mainline u-boot

Like all A80 based devices, there is no support in mainline u-boot.

Images

HW-Pack

BSP

Manual build

Follow SDK build howto to build u-boot and the kernel from the SDK.

Mainline kernel

Initial support for the A80 based on the A80 Optimus board is being worked on.

Use the sun9i-a80-optimus.dtb device-tree file for the mainline kernel.

Tips, Tricks, Caveats

FEL mode

There is no FEL mode button on this board.

Instead you can enter fel mode from U-Boot. While U-Boot is starting, type CTRL+C to interrupt it. At the prompt type efex to enter fel mode.

If booting fails entirely then FEL mode can be entered by shorting pin 29-30 on the nand/emmc with a suitable metal object (tweezer or the like), by vendor official procedure.

Expansion Ports

The A80 Optimus board exposes a 2 mm pitch connector for GPIO, and a Camera/MIPI connector [connector details needed].

GPIO Connector

2x16 GPIO Header
1 GPIO-ADC0 2 GPIO-PL0-CPUS-TX
3 GPIO-ADC1 4 GPIO-PL1-CPUS-RX
5 GND 6 GPIO-3V
7 GPIO-HSIC-STRB 8 GND
9 GND 10 GPIO-PH6-PWM0
11 GPIO-HSIC-DATA 12 GND
13 GND 14 GPIO-PH14-SPI3-CLK
15 GPIO-PL7-1WIRE 16 GPIO-PH15-SPI3-MOSI
17 GPIO-PM0 18 GPIO-PH16-SPI3-MISO
19 GPIO-PM1 20 GPIO-PH17-SPI3-CS0
21 GPIO-PM2 22 GPIO-PG10-TWI3-SCK
23 GPIO-PM3 24 GPIO-PG11-TWI3-SDA
25 GPIO-PM4 26 GPIO-PG12-UART4-TX
27 GPIO-PM8 28 GPIO-PG13-UART4-RX
29 GPIO-PM9 30 GPIO-PG14-UART4-RTS
31 GPIO-PH2 32 GPIO-PG15-UART4-CTS

Camera/MIPI connector

2x17 MIPI Camera Header
1 GND 2 AFVCC-CAM
3 MIPI-CSI2-CLKP 4 AFVCC-CAM
5 MIPI-CSI2-CLKN 6 DVDD-CAM
7 GND 8 VCC-IO-CAM
9 MIPI-CSI2-D2P 10 NC
11 MIPI-CSI2-D2N 12 MIPI-CSI2-MCLK
13 GND 14 NC
15 MIPI-CSI2-D0P 16 NC
17 MIPI-CSI2-D0N 18 MIPI-CSI-SCK
19 GND 20 MIPI-CSI-SDA
21 MIPI-CSI2-D3P 22 MIPI-CSI-RESET
23 MIPI-CSI2-D3N 24 MIPI-CSI-PWDN
25 GND 26 NC
27 MIPI-CSI2-D1P 28 GND
29 MIPI-CSI2-D1N 30 NC
31 GND 32 GND
33 GND 34 GND

JTAG

The board have a dedicated JTAG port with 2mm pinspacing.

2x7 JTAG Header
1 VCC-PH 2 GND
3 NC 4 GND
5 CPUB-TDI 6 GND
7 CPUB-TMS 8 GND
9 CPUB-TCK 10 GND
11 CPUB-TDO 12 NC
13 VCC-PH 14 GND


Serial console port

UART header

The UART header is next to the Ethernet port. The board comes with a custom USB UART cable that fits direclty into the header.

1x5 UART Header
1 GND
2 GND
3 VCC-PH
4 GPIO-PH13-UART0-RX
5 GPIO-PH12-UART0-TX

Pictures

See also

  • Pcduino8 A80 Board: this board has a very similar layout and is probably closely related.

Manufacturer images

Merrii provides firmware images for hardware owners, currently through their customer support.

Personal tools
Namespaces

Variants
Actions
Navigation
Tools