Olimex Open Source Hardware Embedded ARM Linux Single board computer with dual core, dual GPU ALLWINNER A20 CORTEX-A7 A2 A20-OLinuXino-MICRO 数据表
产品代码
A20-OLinuXino-MICRO
OLIMEX© 2013
A20-OLinuXino-MICRO user's manual
screen resolution of 480x272, through the 7'' one named A13-LCD7 with 800x480, to the
1024x600 10.1'' A13-LCD10.
1024x600 10.1'' A13-LCD10.
IMPORTANT:
To use Android with display or resolution different than HDMI and 1024x600 (default settings) you
need to upload new Android image to the board. These images are available here:
need to upload new Android image to the board. These images are available here:
Since the configuration in the Debian images is set to HDMI (720p/60Hz) and 1024x600 (default
settings) you would need to change a configuration file in the main partition of the SD card.
Detailed information and download locations for the script files might be found at:
settings) you would need to change a configuration file in the main partition of the SD card.
Detailed information and download locations for the script files might be found at:
6.15 Jumper description
Please note that most the jumpers on the board are SMT type. If you feel insecure of your
soldering/cutting technique it is better not to try to adjust the jumpers since it is possible to damage
the board.
soldering/cutting technique it is better not to try to adjust the jumpers since it is possible to damage
the board.
Board jumpers
Jumper name
Type
Default position
Function
NAND_E
PTH
UBOOT
Changes the functionality of the
BOOT/REC button – when in UBOOT
position the button is used to
enter bootloader mode (to connect
via USB_OTG). When in REC
BOOT/REC button – when in UBOOT
position the button is used to
enter bootloader mode (to connect
via USB_OTG). When in REC
VPS-
SMT
Open
Reserved for future use of
different types of NAND memories.
different types of NAND memories.
VPS+
SMT
Open
Reserved for future use of
different types of NAND memories.
different types of NAND memories.
6.16 Additional hardware components
The components below are mounted on OLinuXino but are not discussed above. They are listed
here for completeness:
here for completeness:
Reset button - used to reset the board
2 x 2Gbytes (2 x 256Mb x 8 bit) DDR3 SDRAM - the exact memory used in the first revisions of
the board is Memphis H5TQ2G83CFR-H9C H5TQ2G63BFR
the board is Memphis H5TQ2G83CFR-H9C H5TQ2G63BFR
1 x 32Gbytes (4096Mb x 8 bit) NAND FLASH – the exact memory is hynix H27UBG8T2A
PWR_LED – turns on upon powering the board
LED1 – GPIO button
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