OLinuXino-MICRO
Open-source single-board Linux computer
USER’S MANUAL
Revision K, March 2013
Designed by OLIMEX Ltd, 2012
All boards produced by Olimex LTD are ROHS compliant
OLIMEX© 2012
OLinuXino-MICRO user's manual
DISCLAIMER
© 2012 Olimex Ltd. Olimex®, logo and combinations thereof, are registered trademarks of Olimex Ltd.
Other product names may be trademarks of others and the rights belong to their respective owners.
The information in this document is provided in connection with Olimex products. No license, express
or implied or otherwise, to any intellectual property right is granted by this document or in connection
with the sale of Olimex products.
The Hardware project is released under the Creative Commons Attribution-Share Alike 3.0 United States
License. You may reproduce it for both your own personal use, and for commercial use. You will have to
provide a link to the original creator of the project http://www.olimex.com on any documentation or website.
You may also modify the files, but you must then release them as well under the same terms. Credit can be
attributed through a link to the creator website: http://www.olimex.com
The software is released under GPL.
It is possible that the pictures in this manual differ from the latest revision of the board.
The product described in this document is subject to continuous development and improvements. All
particulars of the product and its use contained in this document are given by OLIMEX in good faith.
However all warranties implied or expressed including but not limited to implied warranties of
merchantability or fitness for purpose are excluded. 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.
This evaluation board/kit is intended for use for engineering development, demonstration, or evaluation
purposes only and is not considered by OLIMEX to be a finished end-product fit for general consumer use.
Persons handling the product must have electronics training and observe good engineering practice
standards. As such, the goods being provided are not intended to be complete in terms of required design-,
marketing-, and/or manufacturing-related protective considerations, including product safety and
environmental measures typically found in end products that incorporate such semiconductor components or
circuit boards.
Olimex currently deals with a variety of customers for products, and therefore our arrangement with the user
is not exclusive. Olimex assumes no liability for applications assistance, customer product design, software
performance, or infringement of patents or services described herein.
THERE IS NO WARRANTY FOR THE DESIGN MATERIALS AND THE
COMPONENTS USED TO CREATE OLINUXINO. THEY ARE CONSIDERED
SUITABLE ONLY FOR OLINUXINO.
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OLIMEX© 2012
OLinuXino-MICRO user's manual
Table of Contents
DISCLAIMER............................................................................................................. 2
CHAPTER 1: OVERVIEW........................................................................................5
1. Introduction to the chapter.......................................................................................................5
1.1 Features.....................................................................................................................................5
1.2 The OLinuXino family............................................................................................................ 6
1.2 Target market and purpose of the board...............................................................................6
1.3 Organization.............................................................................................................................7
CHAPTER 2: SETTING UP THE OLINUXINO BOARD.....................................8
2. Introduction to the chapter.......................................................................................................8
2.1 Electrostatic warning...............................................................................................................8
2.3 Requirements........................................................................................................................... 8
2.4 Powering the board..................................................................................................................9
2.5 Prebuilt software......................................................................................................................9
2.6 Using BitBurner.....................................................................................................................10
2.7 Building the Debian Linux image.........................................................................................11
2.8 How to blink the LED............................................................................................................13
2.9 How to setup Arch Linux distribution................................................................................. 13
2.10 How setup the I2C, SPI, UART.......................................................................................... 14
CHAPTER 3: OLINUXINO BOARD DESCRIPTION.........................................15
3. Introduction to the chapter.....................................................................................................15
3.1 Layout (top view)...................................................................................................................16
3.2 Layout (bottom view).............................................................................................................17
CHAPTER 4: THE iMX233 MICROCONTROLLER......................................... 18
4. Introduction to the chapter.....................................................................................................18
4.1 The microcontroller...............................................................................................................18
CHAPTER 5: CONTROL CIRCUITY................................................................... 21
5. Introduction to the chapter.....................................................................................................21
5.1 Reset........................................................................................................................................21
5.2 Clock....................................................................................................................................... 21
5.3 Power supply circuit.............................................................................................................. 21
CHAPTER 6: CONNECTORS AND PINOUT......................................................23
6. Introduction to the chapter.....................................................................................................23
6.1 Debugging interfaces............................................................................................................. 23
6.1.1 UART debug........................................................................................................................24
6.1.2 SJTAG debug...................................................................................................................... 24
6.1.3 Classic JTAG debug............................................................................................................25
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OLIMEX© 2012
OLinuXino-MICRO user's manual
6.2 SD/MMC slot..........................................................................................................................27
6.3 UEXT connector.....................................................................................................................28
6.4 CON1 and CON2 pads..........................................................................................................29
6.5 USB HOST..............................................................................................................................33
6.6 PWR Jack...............................................................................................................................33
6.7 Headphones and line-in connector....................................................................................... 34
6.8 Composite video connector................................................................................................... 34
6.9 Boot mode positions...............................................................................................................34
6.10 Jumper description..............................................................................................................35
6.10.1 SCL_SW/SCL_HW and SDA_SW/SDA_HW................................................................35
6.10.2 5V_E...................................................................................................................................35
6.10.3 3.3V_E jumper.................................................................................................................. 35
6.10.4 Boot mode selecting jumpers........................................................................................... 35
6.11 Additional hardware components.......................................................................................35
6.12 Accessories............................................................................................................................ 36
6.12.1 USB-SERIAL-CABLE-F..................................................................................................36
CHAPTER 7: BLOCK DIAGRAM AND MEMORY........................................... 37
7. Introduction to the chapter.....................................................................................................37
7.1 Memory addresses................................................................................................................. 37
7.2 Processor block diagram.......................................................................................................38
7.3 Physical memory map........................................................................................................... 39
CHAPTER 8: SCHEMATICS..................................................................................40
8. Introduction to the chapter.....................................................................................................40
8.1 Eagle schematic......................................................................................................................40
8.2 Physical dimensions...............................................................................................................42
CHAPTER 9: REVISION HISTORY AND SUPPORT........................................ 43
9. Introduction to the chapter.....................................................................................................43
9.1 Document revision................................................................................................................. 43
9.2 Board revision........................................................................................................................ 45
9.3 Useful web links and purchase codes...................................................................................46
9.3 Product support..................................................................................................................... 47
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OLIMEX© 2012
OLinuXino-MICRO user's manual
CHAPTER 1: OVERVIEW
1. Introduction to the chapter
Thank you for choosing the OLinuXino single board computer from Olimex! This document
provides a user’s guide for the Olimex OLinuXino-MICRO board. As an overview, this chapter
gives the scope of this document and lists the board’s features. The differences between the
members of the OLinuXino family are mentioned. The document’s organization is then detailed.
The OLinuXino development board enables code development of applications running on the
microcontroller i.MX233, manufactured by FreeScale Semiconductor.
OLinuXino is an open-source, open-hardware project and all documentation is available to the
customer.
1.1 Features
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iMX233 ARM926J processor at 454Mhz
64 MB RAM
SD-card connector for booting the Linux image
TV PAL/NTSC video output
1 USB High Speed Host
three Buttons
2x30 pin GPIO for connection of other hardware
PCB dimensions: 3.00'' x 1.70'' (76.2mm x 43.2mm)
Nominal dimensions: 3.40'' x 1.70'' (86.4mm x 43.2mm)
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WindowsCE
