MitySOM-335x Quick Start Guide¶

1. Install the latest MDK Release:

The Yocto MDK is released as a self-extracting installer for Linux systems.

• Download the current release from the Files tab of this support site: https://support.criticallink.com/redmine/projects/armc8-platforms/files
• Open a shell and run the self-extracting installer. It may be necessary to mark the file as executable.
  

  chmod +x mitysom-335x-devkit-MDK-20XX-XX-XX.sh
  ./mitysom-335x-devkit-MDK-20XX-XX-XX.sh
  

• Select the installation directory and complete the installation. The default location is /opt/criticallink/mitysom-335x_XXXX.

2. Install the git-core and subversion applications:

• Open a Terminal window on the host machine
• Run the command, or one appropriate for your machine: sudo apt-get install git-core subversion
• After the install is finished reboot the machine

3. Building an example application

• Source the toolchain
  

  source /opt/criticallink/mitysom-335x_DATE/environment-setup-XXXcriticallink-linux-gnueabi
  

• Replace your usual gcc/g++ command with the cross compile equivalent
  

  arm-criticallink-linux-gnueabi-cpp
  arm-criticallink-linux-gnueabi-g++
  arm-criticallink-linux-gnueabi-gcc
  

• All the cross compile tools can be found in: /opt/criticallink/mitysom-335x_DATE/sysroots/i686-clsdk-linux/usr/bin/arm-criticallink-linux-gnueabi/

4. Basic Makefile

Note: Sourcing the toolchain will set the CC environment variable to the correct value

Makefile: The $(CC) line must have one tab for proper Makefile syntax.

HelloWorld: HelloWorld.c
     $(CC) -o HelloWorld HelloWorld.c

5. Next steps:

After booting the SD card included with the MitySOM-335x Development Kit, it is recommended that you try rebuilding U-Boot and the Linux kernel in order to verify that your environment is configured correctly.

• Das U-Boot Port - Compile and Install
• Linux Kernel - Compile and Install

You can also update the filesystem on your SD card:

• Root Filesystem - Update and Create

If you are planning to do Qt development, please use this guide to setup your environment:

• Qt Starter Guide 2020

Useful Links¶

Critical Link's AM335x Wiki page - This page has an ever expanding base of knowledge that is updated regularly by our engineers
Critical Link Support Site - The main Critical Link Support Website