Graphical tools reconfigure embedded hardware
By Warren Webb -- EDN, September 16, 2004
National Instruments extends its popular virtual-instrumentation software to the embedded-system market with the introduction of a ruggedized, embedded control-and-acquisition system. The new CompactRIO system allows developers to define custom measurement-hardware circuitry using a reconfigurable FPGA and LabView graphical development tools (Picture). CompactRIO features a real-time embedded processor; a four- or an eight-slot chassis containing a user-programmable FPGA; and 15 hot-swappable, industrial-I/O modules. Targeting machine-control, data-acquisition, signal-analysis, system-characterization, and other applications, the CompactRIO system promises to erase the steep FPGA learning curve.
The FPGA circuitry at the heart of the CompactRIO system comprises a parallel-processing, reconfigurable-computing engine that deterministically executes embedded LabView applications at rates as much as 100 times faster than previously possible. For example, engineers can implement multiloop analog PID-control systems at loop rates exceeding 100k samples/sec.
Measuring 7.07×3.47×3.47 in. and weighing 3.47 lbs, the four-slot CompactRIO system withstands temperatures of –40 to +158°F, 50g shock, and hazardous environments. The dc-powered system typically consumes 7 to 10W of power from dual 11 to 30V-dc supply inputs. The new CompactRIO product line includes a four- or an eight-slot chassis; 1 million- or 3 million-gate FPGAs; and a variety of analog, digital, relay, and counter-timer plug-in modules. Designers program CompactRIO hardware using LabView, the LabView Real-Time Module, and the LabView FPGA Module. Prices for CompactRIO embedded systems start at $2495.
National Instruments, www.ni.com/compactrio.
