Download CrossStep & TargetOS

TargetOS is a complete embedded operating system from Blunk Microsystems. The lite version of the kernel is free to use. Our middleware components are available under the following three plans:


TargetOS Basic (Free!)

  • CrossStep IDE with kernel-awareness and debug over Ethernet support
  • TargetOS lite kernel, released as source code
  • Pre-compiled middleware eval libraries for file systems,  networking (including web server), USB, and graphics. Pre-compiled middleware libraries can be licensed on a per-project basis.
  • BSP source code for timers, UART, and CPU initialization
  • Full middleware support in pre-compiled BSP eval library

 TargetOS Pro ($5K/seat annual subscription)

  • Adds TargetOS full kernel, released as source code
  • Adds source code for the following middleware components:
  • Adds BSP source code for full middleware support

TargetOS Premium


TargetOS is Blunk’s operating system for embedded development. It consists of a free full-featured RTOS kernel and a myriad of system components designed to facilitate state of the art embedded product development.

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The RTOS kernel is fully integrated with our free IDE, CrossStep. Some of the kernel features are:

  • multi-tasking
  • preemptive
  • re-entrant
  • priority based
  • synchronization/communication mechanisms
  • deterministic
  • responsive
  • flexible scheduler
  • interrupt service routine manager
  • command line debug monitor

Our system components span the following major categories:

  • storage
  • networking
  • USB
  • graphics

The components are available as evaluation libraries via our download page.


 Storage At A Glance

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 Networking At A Glance

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