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High-speed digital I/O boards for PCIe deliver 200MBps

Posted: 20 Nov 2006 ?? ?Print Version ?Bookmark and Share

Keywords:National Instruments? digital I/O? PCIe? NI PCIe-6536? NI PCIe-6537?

NI's high-speed digital I/O boards for PCIe

National Instruments (NI) has unveiled what it claimed to be the first high-speed digital I/O instruments for PCIe to deliver up to 200MBps dedicated throughput per direction to and from the host processor. The 25MHz NI PCIe-6536 and 50MHz NI PCIe-6537 low-cost digital I/O boards build on the throughput of PCIe to acquire and generate large digital patterns that are otherwise impossible to sustain.

Using this high-performance bus, these digital I/O boards can directly stream data to and from the host processor at full data rates with increased performance and lower costs than traditional proprietary test systems, the company said. Engineers can use these instruments to meet a variety of applications including interfacing to memory devices, emulating communications protocols and testing image sensors and display panels.

The NI PCIe-6536 and NI PCIe-6537 digital I/O boards offer a flexible, universal parallel interface that's entirely software configurable. These digital boards feature maximum clock rates of 25MHz and 50MHz across 32 channels for maximum sustainable throughput of 100MBps and 200MBps, respectively. Engineers can set the direction of each channel for acquisition or generation and can choose from 2.5V, 3.3V or 5V TTL compliant logic levels per direction. The boards are capable of both synchronous and asynchronous timing modes for applications including pattern I/O, handshaking and change detection. Engineers also can easily synchronize the PCIe digital boards with other PCIe DAQ boards to create powerful mixed-signal test systems.

These digital devices take advantage of the high bandwidth of PCIe and use inexpensive PC memory to increase performance while reducing the overall cost of the board, NI explained.

Engineers can further reduce development and maintenance costs of a digital test system by using NI-DAQmx driver software and graphical programming to rapidly prototype their systems. Customers can reuse existing digital applications written with the NI-DAQmx API for the popular NI 6533 and NI 6534 digital devices with their PCIe instruments. The boards are also compatible with NI Digital Waveform Editor software for interactively creating, editing and importing digital waveforms. These instruments integrate with the NI LabVIEW graphical programming platform, LabWindows/CVI software for ANSI C development and NI TestStand test management software.

The NI PCIe-6536 and NI PCIe-6537 digital I/O boards are priced from $1,799.

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