CMX Systems announces CMX-RTX and CMX-TINY+, Real-Time Multi-Tasking Operating Systems support for the Stellaris® Microcontrollers

CMX-RTX and CMX-TINY+ RTOSes Optimized for Small Footprint and Multi-tasking Requirements of Popular Cortex™ - M3-based Stellaris MCUs

Jacksonville, FL and Austin, TX - January 3, 2007– CMX Systems today announced the availability of CMX-RTX and CMX-Tiny+ RTOSes for Luminary Micro’s Stellaris microcontrollers based on the ARM® Cortex-M3 microcontroller core. Luminary Micro is ARM’s lead partner for the Cortex-M3 core and is the first company to bring ARM for $1.00 to embedded developers. The company currently offers a popular family of 19 Stellaris 32-bit microcontrollers at 8- and 16-bit prices.

“CMX is pleased to expand its microcontroller support by introducing CMX-RTX and CMX-Tiny+ support for the Stellaris Cortex-M3 family. CMX-RTX and CMX-Tiny+ provide truly preemptive, multi-tasking operating systems for accelerating development capabilities of designers using Stellaris microcontrollers ” stated Chuck Behrmann, CEO of CMX Systems. “With its broad array of kernel services and extremely small footprint, CMX-RTX and CMX-Tiny+ allow faster application development and easier hardware utilization for Stellaris developers.”

CMX-RTX RTOS supports most 8-bit, 16-bit, and 32-bit microcontrollers and DSPs. It offers the smallest footprint, the fastest context switch times, and the lowest interrupt latency periods of any commercial RTOS available today. RTOS functionality provided in CMX-RTX includes support for: tasks, messages, queues, system, events, memory, resource, semaphores, timers, interrupts and optional kernel aware debugging. ROM requirements are approximately 1.5K minimum to 4.5K maximum.

The CMX-Tiny+ real time multi-tasking operating system is a very “lean and mean” kernel for those processors that have a small amount of RAM embedded on the processor’s silicon (minimum of 512 bytes and higher.) This unique RTOS, based on a scaled down version of the popular CMX-RTX, retains most of the power of CMX-RTX as well as the more frequently used functions. ROM requirements are approximately 1K minimum to 3K maximum.

“CMX Systems is a recognized leader in providing RTOS products for high-performance embedded microcontrollers,” said Jean Anne Booth, CMO of Luminary Micro. “The introduction of CMX-RTX and CMX-Tiny+ for the Stellaris Cortex-M3 family provides designers with expanded capability and flexibility for real-time applications using Stellaris microcontrollers.”

Both CMX-RTX and CMX-Tiny+ also integrate with the CMX-MicroNet™ TCP/IP stack for those applications requiring networking connectivity. CMX-RTX and CMX-Tiny+ also feature full source code, no royalties, and free technical support and updates with every purchase.

CMX-RTX and CMX-Tiny+ are available from CMX Systems and its distributors listed at Luminary Micro’s Stellaris microcontrollers are available through their global sales channel

About CMX Systems, Inc.:

Since its inception in 1990, CMX Systems has focused on providing its customers with all of the tools needed to program their embedded applications. The company's core business is to develop and support real-time, multitasking operating systems (RTOS), TCP/IP stacks, Flash File Systems, USB stacks and the CANopen stack for a wide variety of 8-bit, 16-bit, and 32-bit microcomputers, microprocessors, and digital signal processors. The company's RTOSes support more than 50 processor families and over 30 C-compiler vendors. CMX also develops and supports products that enhance the user's ability to create, test and debug application code, including CMXKAware, CMXBug, and CMXTracker. CMX also offers the tiny CMX-MicroNet, which is a unique TCP/IP stack that is targeted for 8-, 16-, 32-bit and DSP processors with limited ROM and/or RAM and CMX-TCP/IP, a full-featured TCP/IP stack designed for 16-, 32-bit and DSP processors. CMX additionally offers four different Flash File Systems and USB products. For more information, please visit CMX Systems' website at

About Luminary Micro and Stellaris:

Luminary Micro, Inc. designs, markets and sells ARM Cortex-M3-based microcontrollers (MCUs). Austin, Texas-based Luminary Micro is the lead partner for the Cortex-M3 processor, delivering the world’s first silicon implementation of the Cortex-M3 core. Luminary Micro’s introduction of the Stellaris® family of products provides 32-bit performance for the same price as current 8- and 16-bit microcontroller designs. With entry level pricing at $1.00 for an ARM technology-based MCU, Luminary Micro's Stellaris product line allows for standardization that eliminates future architectural upgrades or software tools changes. Contact the company at 1-512-279-8800 or email for more information.

Stellaris is a registered trademark and the Luminary Micro logo is a trademark of Luminary Micro, Inc. or its subsidiaries in the United States and other countries. All other products are trademarks of their respective owners.

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