OLIMEX© 2018
A20-OLinuXino-MICRO user's manual
CHAPTER 2: SETTING UP THE OLINUXINO BOARD
2. Introduction to the chapter
This section helps you set up the OLinuXino development board for the first time. Please consider
first the electrostatic warning to avoid damaging the board, then discover the hardware and software
required to operate the board.
The procedure to power up the board is given, and a description of the default board behavior is
detailed.
2.1 Electrostatic and electrical polarity warning
This product is shipped in a protective anti-static package. The board must not be exposed to high
electrostatic potentials. A grounding strap or similar protective device should be worn when
handling the board. Avoid touching the component pins or any other metallic element.
Ensure that your development board gets attached to properly working hardware. For example, it is
common for cheap HDMI monitors to lack grounding. Avoid TVs which have no grounding on their
power supply cable! If you can’t avoid them try to add the grounding yourself, if this is not possible
please use insulation products like USB-ISO to save your development board from potential over
voltage.
If you connect other electrical devices to the A20 board make sure that they have equal electrical
polarity. For example, when you connect an HDMI cable between a TV and the board it is a good
idea to have them both connected to the same electrical source (to the same utility power socket).
This might be said for a serial cable connected between a PC and the board's DEBUG port.
In rare cases different polarity might cause hardware damage to the board.
2.2 Requirements
In order to set up the A20-OLinuXino-MICRO optimally one or more additional items may be used.
They might be generally placed in three categories:
Required –
items that are needed in order to achieve minimum functionality;
Recommended
– items that is good to have in order to be able to interact with the most important
of the features of the board;
Additional
– items that provide access to additional features or expand the features of the board.
Required items:
- USB type A to USB mini cable – to connect to a personal computer; used for powering the board
and uploading new Android image to the NAND memory (if your board has 4GB NAND)
- Input device – either a mouse/keyboard or touchscreen LCD
- Output device – either HDMI cable + native HDMI monitor/screen/projector; or USB-SERIAL-
CABLE-F + personal computer (for Linux and/or Android debugging); or OLIMEX LCD (TS)
d 40-pin CABLE-IDC40-15cm; or A20-VGA-CABLE + VGA monitor/screen/projector
- SD card with compatible image – if you have the board version with NO additional NAND
memory you will need it to use one of the images available.
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