Express Logic Supports Xilinx MicroBlaze, Virtex-II Pro with ThreadX RTOS

3/15/2004 - Express Logic, Inc., the worldwide leader in royalty-free real-time operating systems (RTOS), announced an expansion of its support for Xilinx® platform FPGA solutions to include ThreadX® RTOS support for the PowerPCTM processor embedded in Xilinx Virtex-II ProTM FPGAs. Express Logic, a member of the Xilinx AllianceEmbedded Program, first announced ThreadX support for the Xilinx MicroBlazeTM soft processor core last year. Developers can now use ThreadX on either architecture, allowing them to optimize their processor choice based upon their ThreadX supported application requirements.

Express Logic's ThreadX provides real-time embedded developers who use Xilinx FPGA solutions with the most technically advanced multitasking solution on the market today. Express Logic's picokernelTM design results in very high-performance and extremely small memory requirements – as small as 3Kbytes to meet extreme size constraints. ThreadX also provides applications using Xilinx’s PowerPC embedded processor cores with significant technical innovations including extremely fast software timers and a mechanism to help reduce context switching called preemption-thresholdTM. Also available for MicroBlaze soft processors, the full suite of Express Logic offerings can now be used by Virtex-II Pro embedded PowerPC users, including the NetXTM network stack, FileXTM file management, and PegXTM graphics.

"Express Logic's ThreadX RTOS support for the Virtex-II Pro embedded PowerPC processor enables customers to better address deeply embedded applications like digital imaging, networking, storage systems, and consumer electronics," said Jerry Banks, director of Global Alliances at Xilinx. “By having a single RTOS supplier support both processor architectures, customers can benefit through lower cost of development and maintenance.”

ThreadX works with the Xilinx Embedded Development Kit (EDK), which includes a complete set of GNU-based software development tools including a C compiler, assembler, linker, and debugger and the Xilinx Platform Studio, a powerful hardware/software embedded design environment. Low cost PowerPC evaluation and development systems from Insight Memec allowed Express Logic to quickly port ThreadX to the Virtex-II Pro embedded PowerPC core.

“Evaluating the ThreadX RTOS on our Spartan-IIE, Virtex-II, Virtex-II Pro, and new Spartan-3 platforms provides users with a flexible environment to investigate the benefits of Express Logic’s multitasking solution,” said Jim Beneke, director of Technical Marketing for Memec.

"We are seeing increasing interest in Xilinx's FPGA solutions for demanding real-time embedded products. Since Xilinx addresses the same high-performance and cost sensitive applications that ThreadX does, we expect strong demand for our Xilinx/PowerPC support package," says William E. Lamie, Express Logic's president. "The addition of our ThreadX support for the PowerPC hard processor core and the MicroBlaze soft processor core will most definitely help application developers leverage the Xilinx Virtex-II Pro and Spartan-3 FPGAs to get better quality product to market in less time."

ThreadX is the smallest, fastest, lowest cost commercial RTOS addressing deeply embedded applications in consumer electronics, medical devices, automotive electronics, and industrial control. ThreadX is royalty-free, making it ideal for high-volume products where manufacturing cost must be held to an absolute minimum.

ThreadX for the Xilinx Virtex-II Pro embedded PowerPC processor is available today, at prices starting at $12,500 for a single product, royalty-free license.

About Express Logic and ThreadX
Headquartered in San Diego, CA, Express Logic offers the most advanced run-time solution for deeply embedded applications, including the popular ThreadX RTOS, the high-performance TCP/IP stack NetXTM, and the embedded MS-DOS file system FileXTM. All products from Express Logic include full source-code and have no run-time royalties. For more information about Express Logic solutions, please browse to, call 1-888-THREADX, or email inquires to

ThreadX is a registered trademark of Express Logic, Inc. NetX, FileX, preemption-threshold, picokernel, UDP fast path technology, are trademarks of Express Logic, Inc. Xilinx, Virtex-II Pro, Spartan, and MicroBlaze are trademarks of Xilinx, Inc.

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