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OLIMEX© 2015

AM3352-SOM user's manual

CHAPTER 1: OVERVIEW

1. Introduction to the chapter

Thank you for choosing this single board computer from Olimex! This document provides a user’s 
guide for the AM3352-SOM 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.

The AM3352-SOM development board enables code development of applications running on the 
AM3352 microcontroller, manufactured by Texas Instruments from the U.S.A.

The AM3352-SOM board is typically used together with AM3352-SOM-EVB board which features
most of the peripherals and connectors needed for full evaluation and utilization of the AM3352 
processor.

The hardware design of AM3352-SOM development board is considered intellectual property to 
Olimex. The hardware layout design files are considered copyright material and would not be 
distributed. The original schematics, however, are distributed in a popular file format.

AM3352-SOM-EVB board is an open-source, open-hardware project and all documentation used to
manufacture the board is available to the customer.

The software support for both boards is open-source and released under GPL license.

1.1 Introduction to SOM (System-On-a-Module)

OLIMEX System-on-Module (SOM) boards are powerful Linux-capable boards. They follow a 
low-cost modular design which allows rapid product development. Each of these boards has two 
parts – a main part which nests the processor, the memory and the power control unit and the 
peripheral part which contains the USB ports, the video output and most of the connectors. SOM 
designs are targeted at customers who want to apply custom modifications and own solutions based 
on a specific processor without having to deal with multi layer PCBs with controlled impedance and
BGA assembly. This makes it possible to create simple boards (that might be manufactured by your 
local board manufacturer) containing only the peripherals you need with the dimensions and shape 
suitable for your specific solution.

Both the main part and the peripheral part of the SOM system have support in the official Android 
and Debian images distributed by Olimex and maintained by Olimex and the Linux community. 
These images are typically available at the wiki articles of the boards.

The peripheral part of the SOM design is considered Open Source HardWare (OSHW) and the 
customer has access to the board source files that we used to manufacture it. The part of the design 
that has the main microcontroller is considered proprietary design and design files would not be 
shared. If you are looking for open source design of the processors used please check the 
OLinuXino boards. OLinuXino board designs are fully open source but harder to implement in own
solutions and require more of a hardware experience to do so. Nevertheless, OLinuXino boards are 
pretty good choice for evaluating the capabilities of the embedded processors.

Page 5 of 36

Содержание AM3352-SOM

Страница 1: ...ss mainly focus on the distribution of electronic components Line cards we deal with include Microchip ALPS ROHM Xilinx Pulse ON Everlight and Freescale Main products comprise IC Modules Potentiometer...

Страница 2: ...AM3352 SOM System on Module Linux enabled board USER S MANUAL Document revision B September 2015 Designed by OLIMEX Ltd 2015 All boards produced by Olimex LTD are ROHS compliant...

Страница 3: ...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 an...

Страница 4: ...arity warnings 10 3 2 Requirements 11 3 3 Powering the board 12 3 3 1 Stand alone powering 12 3 3 2 Mounted powering 13 3 4 Button functions 13 3 5 Interacting with the board 14 3 6 Expanding the Debi...

Страница 5: ...or 27 6 6 AM_CON LCD 40pin connector 28 6 7 Jumper description 29 6 8 Additional hardware components 29 CHAPTER 7 SCHEMATICS 31 7 Introduction to the chapter 31 7 1 Eagle schematic 31 7 2 General phys...

Страница 6: ...product development Each of these boards has two parts a main part which nests the processor the memory and the power control unit and the peripheral part which contains the USB ports the video output...

Страница 7: ...od solution for application orientated embedded systems The reason for this alteration is the additional hardware that AM3352 SOM EVB it provides direct VGA output and easier ways to connect periphera...

Страница 8: ...ollows the hardware layout of AM3352 SOM board revision C AM3352 SOM EVB revision D peripheral board was used while writing this document Different board revisions might have different features or set...

Страница 9: ...check the AM3352 SOM board itself 2 1 Layout top view The picture below shows the top side of the board and highlights the most important parts The four plastic connectors AM_CON LCD AM_CON GPIO1 AM_...

Страница 10: ...ure below shows the bottom side of the board and highlights the most important parts The power LED indicates whether the board is powered properly It is not connected to a processor pin The user LED i...

Страница 11: ...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...

Страница 12: ...52 SOM lacks other options for debugging you would need a serial cable suitable for the 3 3V UART signals SD card with compatible image official images are available at the wiki article for the board...

Страница 13: ...of any of the following headers AM_CON LCD header AM_CON GPIO1 AM_CON GPIO2 AM_CON GPIO3 IMPORTANT provide power supply to only one of the mentioned pins providing 5V to more than one header simultan...

Страница 14: ...umption of AM3352 SOM EVB AM3352 SOM is around 0 20A 10V but might reach peaks up to 0 25A 10V during initial boot These values were measured without anything else connected to the board e g no keyboa...

Страница 15: ...e serial COM port which the cable is associated with The typical baud rate is 115200 the rest of the settings should be left as per default After everything else is set you would need to power the boa...

Страница 16: ...ution To ease the process of changing the video output settings in the default Linux image we have provided a shell script that can be executed Using it you can set the preferred video output medium a...

Страница 17: ...However there is only a 40 pin female connector AM_CON LCD with a 0 05 step Unlike other OLIMEX Linux enabled boards the AM3352 SOM lacks a row of pins that allows the user to connect a display out o...

Страница 18: ...eases These images might be downloaded for free and modified as the user wishes The latest images and updates are featured at the wiki article of the device https www olimex com wiki AM3352 SOM We usu...

Страница 19: ...ntation of the processor refer to the information for the ZCZ ball layout Of particular importance is that Texas Instruments provides excellent documentation and support for AM3352 A short list of fea...

Страница 20: ...OLIMEX 2015 AM3352 SOM user s manual 4 2 Block diagram The block diagram was taken from the based on the AM3352 s documentation Page 19 of 36...

Страница 21: ...t or power cycling the board reset by disconnecting and re applying the main power supply might lead to software corruption of the operating system of choice 5 2 Clocks RTC clock 32 768Hz is connected...

Страница 22: ...level of your computer or cable That is true for the RX and TX also It is highly recommended to have an USB SERIAL CABLE F or similar product at hand when debugging the video output is not always reli...

Страница 23: ...oSD card connector The micro SD card slot is primarily used for booting the operating system The board works with micro SDHC cards up to 32GB of storage Note that the speed class rating of the card us...

Страница 24: ...recommended to use class 10 10MByte sec card for faster read write operations since lower class cards especially higher capacity ones might slow down the whole system You can find the table with the...

Страница 25: ...p IMPORTANT the connectors are very fragile if you attempt to disconnect the board by pulling only one side out it might break Furthermore you might bend the board s pins Use pliers or other suitable...

Страница 26: ...NDQ5 V8 13 P0_23 LCD_D22 T6 14 P1_4 NDQ4 U8 15 P2_11 LCD_D5 U9 16 P1_3 NDQ3 T8 17 P2_13 LCD_D7 V6 18 P1_2 NDQ2 R8 19 P2_15 LCD_D9 T7 20 P1_1 NDQ1 V7 21 P0_22 LCD_D23 T17 22 P1_0 NDQ0 U7 23 P1_14 LCD_D...

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