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Distributor of Olimex LTD: Excellent Integrated System Limited
Datasheet of A20-OLINUXINO-MICRO-4GB - BOARD ARM LINUX SGL A20 4GB
Contact us: sales@integrated-circuit.com Website: www.integrated-circuit.com
Excellent Integrated System Limited
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Olimex LTD
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A20-OLINUXINO-MICRO-4GB
A20-OLINUXINO-MICRO-4GB
For any questions, you can email us directly:
For any questions, you can email us directly:
sales@integrated-circuit.com
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Summary of Contents for OLIMEX A20-OLINUXINO-MICRO-4GB
- Page 1 Distributor of Olimex LTD: Excellent Integrated System Limited Datasheet of A20-OLINUXINO-MICRO-4GB - BOARD ARM LINUX SGL A20 4GB Contact us: sales@integrated-circuit.com Website: www.integrated-circuit.com Excellent Integrated System Limited Excellent Integrated System Limited Stocking Distributor Stocking Distributor Click to view price, real time Inventory, Delivery & Lifecycle Information: Click to view price, real time Inventory, Delivery &...
- Page 2 Distributor of Olimex LTD: Excellent Integrated System Limited Datasheet of A20-OLINUXINO-MICRO-4GB - BOARD ARM LINUX SGL A20 4GB Contact us: sales@integrated-circuit.com Website: www.integrated-circuit.com A20-OLinuXino-MICRO Open-source single-board Android/Linux mini-computer USER’S MANUAL Document revision P, December 2015 Designed by OLIMEX Ltd, 2015...
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Page 3: Disclaimer
This document is intended only to assist the reader in the use of the product. OLIMEX Ltd. shall not be liable for any loss or damage arising from the use of any information in this document or any error or omission in such information or any incorrect use of the product. -
Page 4: Table Of Contents
Distributor of Olimex LTD: Excellent Integrated System Limited Datasheet of A20-OLINUXINO-MICRO-4GB - BOARD ARM LINUX SGL A20 4GB Contact us: sales@integrated-circuit.com Website: www.integrated-circuit.com OLIMEX© 2015 A20-OLinuXino-MICRO user's manual Table of Contents DISCLAIMER ......................2 CHAPTER 1: OVERVIEW ..................5 1. Introduction to the chapter ....................... 5 1.1 Features ............................. - Page 5 Distributor of Olimex LTD: Excellent Integrated System Limited Datasheet of A20-OLINUXINO-MICRO-4GB - BOARD ARM LINUX SGL A20 4GB Contact us: sales@integrated-circuit.com Website: www.integrated-circuit.com OLIMEX© 2015 A20-OLinuXino-MICRO user's manual 5.3 Power supply circuit ......................23 CHAPTER 6: CONNECTORS AND PINOUT ............24 6.
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Page 6: Chapter 1: Overview
Thank you for choosing this OLinuXino single board computer from Olimex! This document provides a user’s guide for the Olimex A20-OLinuXino board. As an overview, this chapter gives the scope of this document and lists the board’s features. The document’s organization is then detailed. -
Page 7: Target Market And Purpose Of The Board
SD card. The 4GB version comes with already programmed Android 4.2.2 image. The other Olimex boards with close characteristics are the ones with A13 and A10 microcontrollers. The A13 boards feature a generation older processor but since they have been longer on the market they have better Linux and Android support. -
Page 8: Organization
Distributor of Olimex LTD: Excellent Integrated System Limited Datasheet of A20-OLINUXINO-MICRO-4GB - BOARD ARM LINUX SGL A20 4GB Contact us: sales@integrated-circuit.com Website: www.integrated-circuit.com OLIMEX© 2015 A20-OLinuXino-MICRO user's manual 1.5 Organization Each section in this document covers a separate topic, organized as follows: –... -
Page 9: Chapter 2: Setting Up The Olinuxino Board
- 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) display + 40-pin CABLE-IDC40-15cm; or A20-VGA-CABLE + VGA monitor/screen/projector - SD card with compatible image –... -
Page 10: Powering The Board
A20-Android-SD – a tested class 10 micro SD card with the latest (by the time of leaving the Olimex facilities) official Android release A20-Debian-SD – a tested class 10 micro SD card with the latest (by the time of leaving Olimex facilities) official Debian Linux release USB-SERIAL-CABLE-F –... -
Page 11: Prebuilt Software
Distributor of Olimex LTD: Excellent Integrated System Limited Datasheet of A20-OLINUXINO-MICRO-4GB - BOARD ARM LINUX SGL A20 4GB Contact us: sales@integrated-circuit.com Website: www.integrated-circuit.com OLIMEX© 2015 A20-OLinuXino-MICRO user's manual The preferred way of powering the board is via the PWR jack with 6-16V DC with a power of 5W (e.g. -
Page 12: Interacting With The Board
Distributor of Olimex LTD: Excellent Integrated System Limited Datasheet of A20-OLINUXINO-MICRO-4GB - BOARD ARM LINUX SGL A20 4GB Contact us: sales@integrated-circuit.com Website: www.integrated-circuit.com OLIMEX© 2015 A20-OLinuXino-MICRO user's manual VOL+ – increases the volume VOL- – lowers the volume MENU – brings up the main menu SEARCH –... -
Page 13: Hdmi Monitor
Distributor of Olimex LTD: Excellent Integrated System Limited Datasheet of A20-OLINUXINO-MICRO-4GB - BOARD ARM LINUX SGL A20 4GB Contact us: sales@integrated-circuit.com Website: www.integrated-circuit.com OLIMEX© 2015 A20-OLinuXino-MICRO user's manual Using HDMI, LCD_CON or LAN might require additional configurations. Furthermore, it is possible to corrupt the output settings over those interfaces and, thus, lose the output. -
Page 14: Lcd Display
One of the ways to interact with the board is via an external display (with or without touchscreen component). The 40-pin male connector LCD_CON has the typical 0.1'' pin step. All Olimex displays have corresponding 40-pin male connector. You would only need a 0.1'' female-female cable for the hardware connection. - Page 15 Distributor of Olimex LTD: Excellent Integrated System Limited Datasheet of A20-OLINUXINO-MICRO-4GB - BOARD ARM LINUX SGL A20 4GB Contact us: sales@integrated-circuit.com Website: www.integrated-circuit.com OLIMEX© 2015 A20-OLinuXino-MICRO user's manual For LCD: 1. 4.3" (480×272) 2. 7" (800×480) 3. 10" (1024×600) For HDMI: 0.
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Page 16: Connecting And Calibrating A Display
All LCD displays made by Olimex have at least a 0.1'' LCD connector. Going for an LCD output you would also need need and a cable to attach the display to the board. The cable is sold separately. -
Page 17: Android Calibration
If the problem is under Debian Linux make sure you are properly logged in the LXDE interface! Else applying calibration would not happen for the current user – if you are calibrating from the X graphical interface make sure that you are logged as user “olimex” (if calibrating without the X, the user is “root”). -
Page 18: I2C And Spi Under Debian
We usually try to provide details on how to build the Linux and the Android images at our wordpress page: http://olimex.wordpress.com/. Another useful place is the Olimex forums where a lot of people share their experience and advice: https://www.olimex.com/forum/ Page 17 of 56... - Page 19 Distributor of Olimex LTD: Excellent Integrated System Limited Datasheet of A20-OLINUXINO-MICRO-4GB - BOARD ARM LINUX SGL A20 4GB Contact us: sales@integrated-circuit.com Website: www.integrated-circuit.com OLIMEX© 2015 A20-OLinuXino-MICRO user's manual Additional Android and Linux support and features are added overtime. The Linux support is a work-in-progress and you should not expect full Linux support after the initial volume of such boards have become available on the market.
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Page 20: Chapter 3: A20-Olinuxino-Micro Board Description
Distributor of Olimex LTD: Excellent Integrated System Limited Datasheet of A20-OLINUXINO-MICRO-4GB - BOARD ARM LINUX SGL A20 4GB Contact us: sales@integrated-circuit.com Website: www.integrated-circuit.com OLIMEX© 2015 A20-OLinuXino-MICRO user's manual CHAPTER 3: A20-OLINUXINO-MICRO BOARD DESCRIPTION 3. Introduction to the chapter Here you get acquainted with the main parts of the board. Note the names used on the board might differ from the names used below to describe them. -
Page 21: Layout (Bottom View)
Distributor of Olimex LTD: Excellent Integrated System Limited Datasheet of A20-OLINUXINO-MICRO-4GB - BOARD ARM LINUX SGL A20 4GB Contact us: sales@integrated-circuit.com Website: www.integrated-circuit.com OLIMEX© 2015 A20-OLinuXino-MICRO user's manual 3.2 Layout (bottom view) At the bottom of the board there are mainly buttons and the large SD/MMC connector. -
Page 22: Chapter 4: The Allwinner A20 Embedded Processor
Distributor of Olimex LTD: Excellent Integrated System Limited Datasheet of A20-OLINUXINO-MICRO-4GB - BOARD ARM LINUX SGL A20 4GB Contact us: sales@integrated-circuit.com Website: www.integrated-circuit.com OLIMEX© 2015 A20-OLinuXino-MICRO user's manual CHAPTER 4: THE ALLWINNER A20 EMBEDDED PROCESSOR 4. Introduction to the chapter In this chapter is located the information about the heart of OLinuXino –... -
Page 23: Block Diagram
Distributor of Olimex LTD: Excellent Integrated System Limited Datasheet of A20-OLINUXINO-MICRO-4GB - BOARD ARM LINUX SGL A20 4GB Contact us: sales@integrated-circuit.com Website: www.integrated-circuit.com OLIMEX© 2015 A20-OLinuXino-MICRO user's manual AUDIO Integrated HI-FI 100dB Audio Codec Dual analog mic amplifiers More information can be found on Allwinner's web site at the following web-address: http://www.allwinnertech.com/en/product/A20.html... -
Page 24: Chapter 5: Control Circuity
Distributor of Olimex LTD: Excellent Integrated System Limited Datasheet of A20-OLINUXINO-MICRO-4GB - BOARD ARM LINUX SGL A20 4GB Contact us: sales@integrated-circuit.com Website: www.integrated-circuit.com OLIMEX© 2015 A20-OLinuXino-MICRO user's manual CHAPTER 5: CONTROL CIRCUITY 5. Introduction to the chapter Here you can find information about reset circuit and quartz crystals locations, the power supply circuit is discussed. -
Page 25: Chapter 6: Connectors And Pinout
Distributor of Olimex LTD: Excellent Integrated System Limited Datasheet of A20-OLINUXINO-MICRO-4GB - BOARD ARM LINUX SGL A20 4GB Contact us: sales@integrated-circuit.com Website: www.integrated-circuit.com OLIMEX© 2015 A20-OLinuXino-MICRO user's manual CHAPTER 6: CONNECTORS AND PINOUT 6. Introduction to the chapter In this chapter are presented the connectors that can be found on the board all together with their pinout and notes about them. - Page 26 Distributor of Olimex LTD: Excellent Integrated System Limited Datasheet of A20-OLINUXINO-MICRO-4GB - BOARD ARM LINUX SGL A20 4GB Contact us: sales@integrated-circuit.com Website: www.integrated-circuit.com OLIMEX© 2015 A20-OLinuXino-MICRO user's manual 5. Connect USB cable to the mini USB connector 6. You will be asked for drivers for the bootloader. Navigate to the folder where you extracted the PhoenixSuit and install the drivers from the respective executables (or manually point the installer to the drivers folder in the PhoenixSuit installation path).
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Page 27: Uart0, Uext1, Uext2 Interface
7 SPI1-MISO SPI1-MOSI 9 SPI1-CLK SPI1-CS0 The UEXT connectors are used as an interface for the Olimex's UEXT modules (usually boards with MOD- prefix in their commercial names). For more information on UEXT please visit: https://www.olimex.com/Products/Modules/UEXT/resources/UEXT.pdf Page 26 of 56... -
Page 28: Sd Card Connectors
When in doubt – try the same operation with another card from another brand. Olimex sells microSD cards with Linux or Android images, that have been tested – please refer to chapter “2.2 Requirements”. Of course, if you already have a large enough microSD card you can download the official Linux image from the wiki pages: https://www.olimex.com/wiki/A20-... -
Page 29: Sd/Mmc1 Slot
Distributor of Olimex LTD: Excellent Integrated System Limited Datasheet of A20-OLINUXINO-MICRO-4GB - BOARD ARM LINUX SGL A20 4GB Contact us: sales@integrated-circuit.com Website: www.integrated-circuit.com OLIMEX© 2015 A20-OLinuXino-MICRO user's manual 6.2.1 SD/MMC1 slot The schematic related to the SD/MMC1 (microSD connector) is shown below: SD/MMC1 slot is the “smaller”... -
Page 30: Sd/Mmc Slot
Distributor of Olimex LTD: Excellent Integrated System Limited Datasheet of A20-OLINUXINO-MICRO-4GB - BOARD ARM LINUX SGL A20 4GB Contact us: sales@integrated-circuit.com Website: www.integrated-circuit.com OLIMEX© 2015 A20-OLinuXino-MICRO user's manual 6.2.2 SD/MMC slot The schematic related to the SD/MMC1 (SD/MMC connector) is shown below: The SD/MMC2 slot is located on the back of the PCB and works with the “larger”... -
Page 31: Pwr Jack
6.3 PWR jack The power jack used is the typical one used by Olimex in most of our products – the DC barrel jack has 2.0mm inner pin and 6.3mm hole. More information about the exact component might be found here: https://www.olimex.com/wiki/PWRJACK. -
Page 32: Usb_Otg Connector
Distributor of Olimex LTD: Excellent Integrated System Limited Datasheet of A20-OLINUXINO-MICRO-4GB - BOARD ARM LINUX SGL A20 4GB Contact us: sales@integrated-circuit.com Website: www.integrated-circuit.com OLIMEX© 2015 A20-OLinuXino-MICRO user's manual MIC_IN. The MIC_IN is a mono input. MIC_IN connector Pin # Signal name... - Page 33 Distributor of Olimex LTD: Excellent Integrated System Limited Datasheet of A20-OLINUXINO-MICRO-4GB - BOARD ARM LINUX SGL A20 4GB Contact us: sales@integrated-circuit.com Website: www.integrated-circuit.com OLIMEX© 2015 A20-OLinuXino-MICRO user's manual There are two parts of a successful OTG device/host mode switch and usage – hardware part and software part.
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Page 34: Usb_Host Connector
Distributor of Olimex LTD: Excellent Integrated System Limited Datasheet of A20-OLINUXINO-MICRO-4GB - BOARD ARM LINUX SGL A20 4GB Contact us: sales@integrated-circuit.com Website: www.integrated-circuit.com OLIMEX© 2015 A20-OLinuXino-MICRO user's manual 6.6 USB_HOST connector The part of the schematic related to the USB_HOST connector is listed below: The USB_HOST connector features two levels –... -
Page 35: Ethernet
Distributor of Olimex LTD: Excellent Integrated System Limited Datasheet of A20-OLINUXINO-MICRO-4GB - BOARD ARM LINUX SGL A20 4GB Contact us: sales@integrated-circuit.com Website: www.integrated-circuit.com OLIMEX© 2015 A20-OLinuXino-MICRO user's manual USB_HOST two-level connector Pin # Signal name Processor pin Pin # Signal name... - Page 36 Distributor of Olimex LTD: Excellent Integrated System Limited Datasheet of A20-OLINUXINO-MICRO-4GB - BOARD ARM LINUX SGL A20 4GB Contact us: sales@integrated-circuit.com Website: www.integrated-circuit.com OLIMEX© 2015 A20-OLinuXino-MICRO user's manual Important: In some Debian images it is possible that the Ethernet doesn't get auto-detected during boot-up.
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Page 37: Hdmi Connector
Distributor of Olimex LTD: Excellent Integrated System Limited Datasheet of A20-OLINUXINO-MICRO-4GB - BOARD ARM LINUX SGL A20 4GB Contact us: sales@integrated-circuit.com Website: www.integrated-circuit.com OLIMEX© 2015 A20-OLinuXino-MICRO user's manual 6.8 HDMI connector The part of the schematic that describes the HDMI module is shown below: Note that there are different Linux images depending whether the HDMI TV works at 50Hz or 60Hz refresh rate. -
Page 38: Vga Connector
6.9 VGA connector You would probably need an adapter cable for the VGA display (6-pin connector to 15-pin female RGB cable). You can make the cable or the connection yourself or you can purchase the Olimex- made cable: https://www.olimex.com/Products/Components/Cables/A20-VGA-CABLE/.Note that you also have to change the script under Debian as explained in chapter 2.6 “Calibrating a display”. -
Page 39: Sata Connector And Power
Distributor of Olimex LTD: Excellent Integrated System Limited Datasheet of A20-OLINUXINO-MICRO-4GB - BOARD ARM LINUX SGL A20 4GB Contact us: sales@integrated-circuit.com Website: www.integrated-circuit.com OLIMEX© 2015 A20-OLinuXino-MICRO user's manual 6.10 SATA connector and power The part of the schematic describing the SATA module is shown below:... -
Page 40: Gpio Ports
Distributor of Olimex LTD: Excellent Integrated System Limited Datasheet of A20-OLINUXINO-MICRO-4GB - BOARD ARM LINUX SGL A20 4GB Contact us: sales@integrated-circuit.com Website: www.integrated-circuit.com OLIMEX© 2015 A20-OLinuXino-MICRO user's manual 6.11 GPIO ports There are three GPIO ports which are used generally to access unused by the board's peripherals pins. -
Page 41: Gpio-2 (General Purpose Input/Output) 40Pin Connector
Distributor of Olimex LTD: Excellent Integrated System Limited Datasheet of A20-OLINUXINO-MICRO-4GB - BOARD ARM LINUX SGL A20 4GB Contact us: sales@integrated-circuit.com Website: www.integrated-circuit.com OLIMEX© 2015 A20-OLinuXino-MICRO user's manual 6.11.2 GPIO-2 (General Purpose Input/Output) 40pin connector The GPIO pins are led out on a separate 40pin connecter. They allow the user to attach additional hardware, check readings or perform hardware debug. -
Page 42: Gpio-3 (General Purpose Input/Output) 40Pin Connector
Distributor of Olimex LTD: Excellent Integrated System Limited Datasheet of A20-OLINUXINO-MICRO-4GB - BOARD ARM LINUX SGL A20 4GB Contact us: sales@integrated-circuit.com Website: www.integrated-circuit.com OLIMEX© 2015 A20-OLinuXino-MICRO user's manual 6.11.3 GPIO-3 (General Purpose Input/Output) 40pin connector GPIO-3 connector features the signals of AXP152 on a convenient header. The signals available might be used to implement power controls on the board –... - Page 43 Distributor of Olimex LTD: Excellent Integrated System Limited Datasheet of A20-OLINUXINO-MICRO-4GB - BOARD ARM LINUX SGL A20 4GB Contact us: sales@integrated-circuit.com Website: www.integrated-circuit.com OLIMEX© 2015 A20-OLinuXino-MICRO user's manual on the debugger you have and the type of its connector (20-pin JTAG, 10-pin JTAG, etc).
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Page 44: Lcd_Con 40Pin Connector
We have tested the ability of the board to interact with such a display. They allow the user to attach additional hardware, check readings or perform hardware debug. Important: you need additional 40PIN ribbon cable to connect an Olimex display and the LCD_CON. -
Page 45: Jumper Description
OLIMEX© 2015 A20-OLinuXino-MICRO user's manual The LCD connector is suitable for a number of Olimex displays and touchscreen panels with different native resolution – the smallest available is the 4.3'' one called LCD-OLinuXino-4.3TS with native screen resolution of 480×272, through the 7'' one named LCD-OlinuXino-7TS with 800×480, to the 1024×600 10.1'' LCD-OLinuXino-10TS. -
Page 46: Additional Hardware Components
Distributor of Olimex LTD: Excellent Integrated System Limited Datasheet of A20-OLINUXINO-MICRO-4GB - BOARD ARM LINUX SGL A20 4GB Contact us: sales@integrated-circuit.com Website: www.integrated-circuit.com OLIMEX© 2015 A20-OLinuXino-MICRO user's manual 6.14 Additional hardware components The components below are mounted on OLinuXino but are not discussed above. They are listed here for completeness: Reset button –... -
Page 47: Chapter 7: Schematics
Distributor of Olimex LTD: Excellent Integrated System Limited Datasheet of A20-OLINUXINO-MICRO-4GB - BOARD ARM LINUX SGL A20 4GB Contact us: sales@integrated-circuit.com Website: www.integrated-circuit.com OLIMEX© 2015 A20-OLinuXino-MICRO user's manual CHAPTER 7: SCHEMATICS 7. Introduction to the chapter In this chapter is located information about the schematics describing logically and physically A20- OLinuXino-MICRO. -
Page 48: Physical Dimensions
Distributor of Olimex LTD: Excellent Integrated System Limited Datasheet of A20-OLINUXINO-MICRO-4GB - BOARD ARM LINUX SGL A20 4GB Contact us: sales@integrated-circuit.com Website: www.integrated-circuit.com OLIMEX© 2015 A20-OLinuXino-MICRO user's manual 7.2 Physical dimensions Note that all dimensions are in mils. The three highest elements on the board in order from the tallest to the shortest are: USB_HOST connector –... -
Page 49: Chapter 8: Revision History And Support
Distributor of Olimex LTD: Excellent Integrated System Limited Datasheet of A20-OLINUXINO-MICRO-4GB - BOARD ARM LINUX SGL A20 4GB Contact us: sales@integrated-circuit.com Website: www.integrated-circuit.com OLIMEX© 2015 A20-OLinuXino-MICRO user's manual CHAPTER 8: REVISION HISTORY AND SUPPORT 8. Introduction to the chapter In this chapter you will find the current and the previous version of the document you are reading. - Page 50 Distributor of Olimex LTD: Excellent Integrated System Limited Datasheet of A20-OLINUXINO-MICRO-4GB - BOARD ARM LINUX SGL A20 4GB Contact us: sales@integrated-circuit.com Website: www.integrated-circuit.com OLIMEX© 2015 A20-OLinuXino-MICRO user's manual Revision, date Notable changes Modified page 1. Updated pictures with revision E 1, 14, 15 2.
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Page 51: Board Revision
Distributor of Olimex LTD: Excellent Integrated System Limited Datasheet of A20-OLINUXINO-MICRO-4GB - BOARD ARM LINUX SGL A20 4GB Contact us: sales@integrated-circuit.com Website: www.integrated-circuit.com OLIMEX© 2015 A20-OLinuXino-MICRO user's manual 8.2 Board revision Remember to check the schematics and the board design files to compare the differences. -
Page 52: Useful Web Links And Purchase Codes
A20-Android-SD – a tested class 10 micro SD card with the latest (by the time of leaving the Olimex facilities) official Android release A20-Debian-SD – a tested class 10 micro SD card with the latest (by the time of leaving Olimex facilities) official Debian Linux release LCD-OLinuXino-4.3TS –... -
Page 53: Frequently Asked Questions
Distributor of Olimex LTD: Excellent Integrated System Limited Datasheet of A20-OLINUXINO-MICRO-4GB - BOARD ARM LINUX SGL A20 4GB Contact us: sales@integrated-circuit.com Website: www.integrated-circuit.com OLIMEX© 2015 A20-OLinuXino-MICRO user's manual 8.4 Frequently asked questions Q: I power my board, it shows a logo and then nothing happens. - Page 54 Distributor of Olimex LTD: Excellent Integrated System Limited Datasheet of A20-OLINUXINO-MICRO-4GB - BOARD ARM LINUX SGL A20 4GB Contact us: sales@integrated-circuit.com Website: www.integrated-circuit.com OLIMEX© 2015 A20-OLinuXino-MICRO user's manual Q: How to detect and enable the Ethernet controller (if it is disabled by default)? A: You can enable it by following these two steps: 1.
- Page 55 Distributor of Olimex LTD: Excellent Integrated System Limited Datasheet of A20-OLINUXINO-MICRO-4GB - BOARD ARM LINUX SGL A20 4GB Contact us: sales@integrated-circuit.com Website: www.integrated-circuit.com OLIMEX© 2015 A20-OLinuXino-MICRO user's manual Q: I have a 4GB version of the board. The board doesn't seem to have Android loaded.
- Page 56 Distributor of Olimex LTD: Excellent Integrated System Limited Datasheet of A20-OLINUXINO-MICRO-4GB - BOARD ARM LINUX SGL A20 4GB Contact us: sales@integrated-circuit.com Website: www.integrated-circuit.com OLIMEX© 2015 A20-OLinuXino-MICRO user's manual Android will go in sleep mode and you have to press POWER button to start it, you can change to fast boot when you power off there is dialog box asking you if you want next boot to be fast boot, you have to check this box before you power off.
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Page 57: Product Support
All goods are checked before they are sent out. In the unlikely event that goods are faulty, they must be returned, to OLIMEX at the address listed on your order invoice. OLIMEX will not accept goods that have clearly been used more than the amount needed to evaluate their functionality.
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