Strategic Test > Digital I/O PCI cards with 64, 32 or 16 bit PCI Express boards

Digital I/O PCI cards with 64, 32 or 16 bit PCI Express boards

Posted on Oct 18, 2011, Categories: PCI Express

125 MHz maximum clock rate

  • PCI Express x1 board
  • 125 MHz max clock on up to 32 TTL channels, or
  • 60 MHz max clock on up to 64 TTL channels
  • Simultaneous record / replay possible
  • 8 channel memory saving mode
  • 1 kHz to maximum clock rate
  • Triggers: start, stop, pattern, change detection and pulsewidth
  • Up to 4 GigaByte of onboard signal memory
  • Drivers: Windows and Linux drivers included.
  • Optional: MATLAB, LabVIEW, VEE, DASYLab, LabWindows/CVI
  • Two years hardware warranty
  • Life time free technical support and software updates
Table 1: Maximum I/O rates SelectShow

Standard mode: Recording

The signals can be recorded to the onboard signal memory at the maximum clock rate using Standard mode. At the end of the measurement, the data is off-loaded to the PC using DMA at the maximum PCI Express bus data transfer rate of up to 120 MBytes/s. While recording, the card operates independently of the host PC which is available for other tasks.

Standard mode: Generation

The signals are downloaded to the onboard signal memory. Output is started on software or external TTL trigger and the signal(s) are output once, n times, or repeated until the card is stopped by software. This mode allows the cards to output at the maximum clock rate. While generating, the card operates independently of the host PC so the cpu can be used for other tasks.

… and FIFO mode. Recording or Generating continuously at 120 MBytes/s

Alternatively, the UF2e boards also provide a FIFO mode that continuously transfers the waveform data gap-free to or from the PC. This mode has the advantage that longer signals can be recorded or generated than the available on-board memory.

Note that the maximum output rate is limited by the PCI Express bus transfer rate, which is typically 120 MBytes/s, and the number of activated channels. For a 16-bit Digital board this equates to a max sampling rate of f=120M/2/n where n is the total number of activated channels (including all cards in the system).

Synchronizing multiple-cards in a single PC

The Star Hub option is an add-on that allows multiple cards, even of different types, to be synchronized. There are two versions that support up to 5 cards or 16 cards.

The Star Hub distributes the clock and trigger signals, so all channels are without time-skew errors and all cards start on the same trigger condition (any channel, any external TTL trigger). Any card can be defined as the clock master or trigger master by software. It’s also possible to configure AND/OR trigger conditions (channel or external TTL) across multiple cards. Please note that the UF2e Star Hub option is not compatible with the older UF Star Hub option.

Download the UF2/UF2e Star Hub datasheet here.

Synchronizing multiple PC’s

A new option, the System Star Hub synchronizes up to 271 UF2e and UF2 cards cards hosted in up to 17 PC’s. This option is useful if:

  • The number of channels/cards required can’t fit in one PC
  • Data will be stored continuously (using FIFO mode) to hard disk array and the limits of the PCI/PCI Express means not all cards can be placed in one system
  • Extensive online calculations have to be made for several channels and the bus bandwidth isn’t capable of streaming data for all channels or a single cpu power is not sufficient

Fine Resolution Sampling Rates

Most other products limit you to a few fixed sampling rate choices, however with the UF2e cards you simply instruct the software which rate you require and the driver will automatically adjust the onboard PLL and hardware divider to achieve the closest sampling rate possible.

External Clock and External Trigger

Need to synchronize with external equipment? As standard the UF2e cards are supplied with connectors for external clock and trigger. Both can be programmed as input or output, so the card can receive a TTL clock or output the internal clock and the trigger connector can receive a TTL trigger event or generate a trigger event from either a software trigger or detected channel trigger.

Easy Programming

Only six key functions to define a complete setup. Small DLL or module (Linux) uses few system resources and does not conflict with other programs. On request, we will be pleased to send you the User Manual as a pdf so you can see the many examples.

The API is identical for all UF2e Digitizer, AWG and Digital cards to reduce programming times.

What’s included

The UF2e cards are supplied with:

  • Windows (Vista, XP, XP64, 2000, NT) and Linux drivers
  • Extensive printed user manual with many programming examples
  • Source code programming examples: c/c++, VB, Delphi
  • SBench 6 waveform generationprogram for Win/Linux
  • Two years hardware warranty
  • Lifetime software updates (inc. future Win/Linux drivers)
  • Lifetime technical support from specialists

Features

Standard Features
Onboard signal memory
256 MBytes standard. Expandable to 4 GBytes onboard.
Standard mode Record at max rates of into card memory
FIFO mode
Up to 120 MBytes/s data streaming to/from PC memory
External clock I/O Clock input/output for synchronization with external systems
External trigger I/O Trigger input/output for synchronization with external systems
Reference clock Input of high precision external reference clock
Optional Features
Memory upgrades
Options: 512, 1024, 2048, 4096 MBytes
Multiple Recording Memory segmentation and auto re-arm trigger for recording high-speed series of waveforms at high repetition rates.
Multiple Replay Memory segmentation and auto re-arm trigger for recording high-speed series of waveforms at high repetition rates. Especially suited to capture RADAR pulses.
Gated Sampling Recording controlled by external gate signal
Timestamp Records the time of trigger events in an extra FIFO buffer
Star Hub (-sh5, -sh16) Perfect synchronization of up to 16 boards. Unique!
System Star Hub Synchronize up to 17 Star Hub systems (271 cards)
Base Extra I/O (-xio) Asynch digital I/O’s for control, read status or trigger off external equipment
Drivers MATLAB, LabVIEW, VEE and DASYLab driver options

Strategic Test

Strategic Test was established in the UK during 1994. The company opened a subsidiary in Sweden in 1999 and decided to make this the head office during 2000. In 2004 we celebrated our 10th anniversary and the opening of our USA subsidiary, Strategic Test Corporation which is located in the Boston area.

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