ARM Cortex-A8 Based Product Support¶

Support is included for the MitySOM-335X System on Module (SOM). See The MitySOM-335x Product webpage for a top level summary of this platform.

• MitySOM-335X Module DataSheet [pdf]
• MitySOM-335X Development Kit Base Board DataSheet [pdf]
• MitySOM-335X Development Kit Base Board [Wiki]
• MitySOM-335x Carrier Board Design Guide

MitySOM-335x WiFi and BLE Module¶

• MitySOM-335X TiWi-BLE [Wiki]

In addition, many of the concepts and procedures used on the ARM-9 based platforms are applicable to the Cortex-A8 platform (with a little tweaking for architecture and toolchain differences). Critical Link maintains a wiki for our ARM-9 based products here... http://support.criticallink.com/redmine/projects/arm9-platforms/wiki

Architecture¶

• MitySOM-335x Architecture
• MitySOM-335x I2C Addresses

Software Design¶

Linux Operating System¶

Please use our Quick Start guide to configure your environment: MitySOM-335x Quick Start Guide

The current MDK (Mity Development Kit) for this module is an extension the TI Processor SDK. The MDK is created using Yocto and includes a cross-compiler environment along with Kernel, U-Boot, and filesystem binaries. In general, we recommend using Ubuntu Linux distribution for development. Using a older, but still supported, LTS release is usually the best choice.

Downloads of Critical Link maintained packages can be found under the "Files" tab or directly at: https://support.criticallink.com/redmine/projects/armc8-platforms/files. Also, larger files (including source code for the MDK Yocto build) are available at http://support.criticallink.com/files/mityarm335x/.

Other Linux Topics¶

• Ethernet Phy Reset in UBoot
• Configure U-Boot from Linux
• MitySOM 335x Network Boot
• Configure U-Boot Splash Screen
• Creating a custom device tree for your baseboard
• UBIFS Nand Boot
• Boot Peripheral Options
• MitySOM-335x Frequency Scaling
• Using JTAG to debug Linux kernel
• NTFS Read/Write Support
• Using psplash

Throughput Testing¶

• MMC/SD Card Throughput
• NAND Throughput
• Gigabit Ethernet Throughput

LCD, Graphics and Touchscreen¶

• Supported Video Resolutions
• Touch Screen Calibration
• PowerVR Graphics

Networking¶

• Setting a Static IP Address
• Compiling iperf3
• Network Time Applications - NTP PTP

Other Peripherals¶

• Building libdaq example applications/libraries
• Using USB port
• Using Audio jacks
• Driving RS-485 transceivers
• Using CAN port
• I2C0 Bus Access in U-Boot
• Using AM335x watchdog
• GPIO Usage Overview
• 802.11 WiFi Usage and Configuration
• Programmable Real-time Unit(s)

Windows EC Operating Systems¶

Windows EC 2013

• WEC 2013 SW Details
• Flashing 2013 EBOOT and OS Files
• Booting Win EC 2013 from SD Card

Windows EC 2007 (Deprecated)

• Flashing EBOOT and OS Files
• Booting Win CE from SD Card

Older MDK DocumentationOlder MDK Documentation

Hardware Design¶

Electrical¶

• MitySOM-335x Power Supply Requirements
• MitySOM-335x RTC Information
• Pin Out
• Ethernet Phy Selection
• WARMRST_N Signal Usage
• GPIO Protection

Mechanical¶

• Shock and Vibration
• CAD Files
• Mounting and Mechanical Supports

Other Design Considerations¶

• Module Product Change Notifications
• Hardware Design Guidelines
• EMI/EMC Testing
• LCD and DVI Display Solutions

Frequently Asked Questions¶

• Software FAQs
• Hardware FAQs
• Misc. FAQs

Reference Material¶

A large portion of the software has been developed using information from the sites listed below:

• Texas Instruments
• TI Arago Project
• TI Processor Community
• OpenEmbedded Project