CMX Systems announces RTOS and TCP/IP Support for Freescale's Flexis Series Microcontrollers

Scaleable RTOSes and TCP/IP Stack simplify migration from 8- to 32-bit platforms

Boston, MA - September 18, 2007– CMX Systems today announced the availability of the CMX-Tiny+ and CMX-RTX real time operating systems plus the CMX-MicroNet TCP/IP stack for Freescale's Flexis QE 128 series of microcontrollers (MCUs).

“CMX is pleased to expand its microcontroller support by introducing CMX-Tiny+ and CMX-RTX support for the Flexis family. CMX-Tiny+ and CMX-RTX provide a truly preemptive, multi-tasking operating system for accelerating development capabilities of designers using Flexis 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 Flexis developers. CMX-MicroNet significantly increases the value of the Flexis series MCU's for applications requiring TCP/IP connectivity.”

CMX-RTX is a truly preemptive, multi-tasking RTOS supporting a wide variety of 8-, 16-, 32-bit microcomputers, microprocessors, and DSP's. CMX-RTX offers the smallest footprint, the fastest context switching times, and the lowest interrupt latency times available on the market today. RTOS functionality provided in CMX-RTX includes: task management, message management, queue management, system management, event management, memory management, resource management, semaphore management and timer management. CMXKAware provides kernel aware debugging.

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. Most important, true preemptive scheduling is fully supported and cooperative scheduling is also available, if required. ROM requirements are approximately 1K minimum to 3K maximum.

CMX-MicroNet is a TCP/IP stack specially crafted to work with virtually all processors and features an extremely small ROM requirement ranging from 5K to 24K (depending on configuration and processor) and very minimal RAM requirements of about 500 bytes plus buffers for packets. The base CMX-MicroNet software package currently includes UDP, TCP, IP, Modem, SLIP, ICMP Echo, IGMP, and Virtual File system. Current Add-On Options available are: HTTP Web Server, DNS Client, FTP, SMTP, SNMP, DHCP Client, TFTP Client, Fragmentation, SNTP, POP3, PPP, CHAP, Ethernet (ARP, BOOTP) and Wireless Ethernet. The CMX-MicroNet stack can work with or without an RTOS.

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

CMX-Tiny+, CMX-RTX and CMX-MicroNet are available from CMX Systems and its distributors. Contact CMX Systems at 904-880-1840 or email

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 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 to best meet the memory management needs of embedded developers. CMX-USB is offered for designers wishing to add USB connectivity to their products. For more information, please visit CMX Systems' website at

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