Техническая Спецификация для Cesys CEBO-STICK C028210
Модели
C028210
Software timed - one single frame
Capture and return one frame, which may consist of several input or output signals.
Exact frame timing is not predictable, as it strongly depends on host system processing
of requests targeting the USB interface. Therefore frame to frame timing might vary.
With a typical system minimum time frames are between one and four microseconds,
hence the maximum sample rate will be about 250 up to 1.000 frames per second.
Exact frame timing is not predictable, as it strongly depends on host system processing
of requests targeting the USB interface. Therefore frame to frame timing might vary.
With a typical system minimum time frames are between one and four microseconds,
hence the maximum sample rate will be about 250 up to 1.000 frames per second.
Hardware timed - continuous frames
Capture and return an unlimited number of frames. The frame to frame timing is
completely done by CEBO-STICK hardware and only stopped upon user request. If you
need well defined sample rates at the highest data transfer levels use this mode.
completely done by CEBO-STICK hardware and only stopped upon user request. If you
need well defined sample rates at the highest data transfer levels use this mode.
The achievable maximum frame acquisition frequency is limited by the available data
transfer rate between CEBO-STICK and the host system. With a fast host system total
sample rates up to 188.000 Samples per second are possible.
transfer rate between CEBO-STICK and the host system. With a fast host system total
sample rates up to 188.000 Samples per second are possible.
Hardware timed - buffered frames
Frame data is captured to onboard memory of CEBO-STICK and stops automatically,
when a given number of frames has been stored. The frame to frame timing is
completely done by CEBO-STICK hardware. Use this mode, if you need a well defined
sample rate at the highest data transfer levels, but your host system is not capable to
sustain such high data rates. The number of acquisitions is limited by the buffer size of
the CEBO-STICK.
when a given number of frames has been stored. The frame to frame timing is
completely done by CEBO-STICK hardware. Use this mode, if you need a well defined
sample rate at the highest data transfer levels, but your host system is not capable to
sustain such high data rates. The number of acquisitions is limited by the buffer size of
the CEBO-STICK.
When external trigger is enabled, an edge on the TRG input is required to start
capturing.
capturing.
External timed - continuous/buffered frames
These acquisition modes are like the hardware-timed modes but with one difference:
Timing is not done by CEBO-STICK hardware, but an adequate clock signal has to be
provided on the trigger input. Edges on IO-0, configured as trigger input, start the
acquisition of one frame. You can
Timing is not done by CEBO-STICK hardware, but an adequate clock signal has to be
provided on the trigger input. Edges on IO-0, configured as trigger input, start the
acquisition of one frame. You can
falling, rising or both edges.
CEBO-STICK Reference Manual
Cesys GmbH
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