Critical Link MitySOM-335x User manual

Copyright © 2016, Critical Link LLC
60-000019-1_RevA
Thank you for choosing the MitySOM-335x Maker Transition Kit from Critical Link.
In this Quick Start Guide you will be guided through the initial steps of setting up your MitySOM-335x Maker
Transition Kit. This Kit will allow you to transition an existing Beaglebone® based design to the Critical Link
MitySOM-335x System on Module; included and installed in the Maker Transition Board. A Linux Operating
System is pre-loaded onto the Micro SD to support this transition. The MitySOM-335x Maker Transition Board
is designed to offer similar interfaces as that of the Beaglebone to ensure a quick hardware and software
transition.
The MitySOM-335x Maker Transition Kit contains the following:
Provided Hardware:
MitySOM-335x Maker Transition Board with:
oMitySOM-335x System on Module (Installed)
o4GB of eMMC Flash Memory
oDual 46-pin Cape Compatible Headers
oMicroSD Card Connector
o10/100 Networking
oHDMI Output with audio
oUSB OTG (Mini B) and Host (A) Ports
oSingle 5V DC Input
oJTAG and UART Debug interfaces
USB to UART Debug Serial cable
AC/DC 5V 2A adapter
SD Card pre-loaded with Linux Operating System and demonstration application
Printed Documents:
MitySOM-335x Development Kit Quick Start Guide (this document)
Software and documentation:
Please visit our support site for updated software and documentation
ohttps://support.criticallink.com/redmine/projects/mitysom-335x_maker/wiki
Suggested Hardware (not provided):
Widescreen HDMI display and MicroHDMI to HDMI Adapter
USB Mouse (for interaction with Demo application)

Copyright © 2016, Critical Link LLC
60-000019-1_RevA
Default Setup (Boot from MicroSD card)
1) By default the MitySOM-335x Maker Transition Kit is
configured to boot from the included MicroSD card.
Make sure that the MicroSD card has been inserted fully
into the slot, J401 (Find 1).
2) Connect the supplied USB to UART cable to the 3-pin
header (Find 2), J2, and then the USB A connector to
your PC. Configure your PC serial port application with:
115200 baud rate, 8 data bits, no parity, 1 stop bit and
no flow control for the newly detected COM port.
3) The included SD card will execute a graphical
demonstration application by default. You may connect
a USB Mouse to the USB A port (Find 3) and an HDMI
display, Micro HDMI adapter required, through J300
(Find 4). 10/100 Ethernet is supported by connecting an
Ethernet cable to the RJ45 port (Find 5).
4) Connect the 5V AC/DC power input to J402 (Find 6). At
this time the module should boot from the SD card.
Note: LED D2 on the MitySOM module should light and
stay lit once power is applied.

Copyright © 2016, Critical Link LLC
60-000019-1_RevA
5) If the debug serial port is connected to a PC you should
see boot messages appear and after approximately 10
seconds there should be a MitySOM-335x prompt
shown. The login is “root”; there is no password.
6) At this time if a monitor has been connected you should
see the following demonstration screen displayed.
Using a USB mouse you can interact with the
demonstration application. To exit the application press
the [X] in the top right corner or the “Quit” button.
7) At this point you may now explore the demonstration
applications using your USB mouse.
8) If you are NOT using a monitor or other display you can
stop and start the demonstration program through the
debug serial interface using the following commands:
a. Stop/Close: /etc/init.d/qtdemo stop
b. Start: /etc/init.d/qtdemo stop
9) Included on the board are two Reset/Power switches
(Find 7)
a. S101 –System Reset
b. S102 –Power Button
10) 4GB of eMMC memory is available on the transition
board for users and is not programmed by default.
11) The MitySOM-335x Maker Transition Board includes a
USB Mini B connector (Find 8) which can be used to
connect the board to a PC. Currently this is configured
as an RNDIS device in the included Linux Kernel.
12) The MitySOM-335x Maker Transition Board has been
designed to be compatible with most Beaglebone Black
compatible expansion capes through the use of the two
46-pin headers, P8 and P9.
13) Note that any variant of MitySOM-335x SoM can be
installed in the Maker Transition Board. Please contact
your Critical Link representative if you would like to
obtain an alternate module. Stocked AM335x types:
a. AM3352
b. AM3354
c. AM3358
d. AM3359
14) If you have any questions please visit our support pages:
a. Wiki:
https://support.criticallink.com/redmine/proje
cts/mitysom-335x_maker/wiki
b. Forums:https://support.criticallink.com/redmin
e/projects/mitysom-335x_maker/boards

Copyright © 2016, Critical Link LLC
60-000019-1_RevA
MitySOM-335x Maker Transition Kit
Quick Start Guide
For more details visit
www.criticallink.com