PI-41000 is a CompactPCI® bus
based instrument card that allows the user to capture up to 32-bits of
digital data into an
on-board memory at clock rates up to 80 MHz. The inputs are software
configurable to provide one 32-bit wide channel, one 16-bit wide channel with double depth or two
digital data channel requires three timing signals, frame, line and pixel
to accommodate the data capture. When operating in a two channel mode, clocks from channel A can be
used to provide timing to channel B. For wider words or multiple channels, more boards can be used in parallel.
PI-41000 Digital Acquisition Board has on-board memory of 256 MB
or 512 MB. When the instrument is configured to operate as a single 16-bit
channel the two input buffers are combined to maximize the memory depth.
In this mode and with a 256 MB memory the unit will store 128 Mwords. When the same instrument is
configured for one 32-bit channel or two
independent 16-bit channels, the unit will store 64 Mwords.
Acquisition and Inputs:
PI-41000 was designed primary for image capture. To synchronize data, the board
frame, line and pixel timing signals. Each of these timing signals has an associated counter.
The line and pixel counters when combined provide an important Area
of Interest (AOI) feature. This feature provides the ability to capture a sub-image of a
defined area on the imaging device. The Area of Interest acquisition provides for an efficient use of
the capture memory. Data can be collected on a defined pixel area of the imager without
acquiring and storing the complete image. By using the AOI feature the user can process and display and area
of any size up to 64K x 64K pixels.
input levels for both data and clocks are 3.3V CMOS or LVDS. The inputs for data and timing signals are terminated with
approximately 1 KOhm. To minimize reflections the drive for the data and timing signals
should be a back-matched with 50 ohms. As an option the input impedance of data and/or timing signals can
be changed to 50 ohms. The data input is via two 40 pin header connectors.
The timing signal connectors are SMA.
The PI-41000 can be used by itself in a CompactPCI-based test system, or as
the digital acquisition component of the PI-3105
Multi-Channel Data Acquisition System or of a fully-integrated, turnkey
imager test system.
Transfer and Software:
PI-41000 is capable of becoming a bus master and therefore uses DMA to
transfer the captured data to from the on-board memory to the Host CPU.
PI-41000 is supported by Pulse Instruments’ PI-DATS
and PI-Controller software. DLLs, documentation, and sample code are also
available to facilitate integration into custom applications written in C++,
VisualBasic, VBA, LabVEW, HTBasic, IDL, or MATLAB.