User`s manual
CYDAS UDR Library User’s Guide Analog Input Boards - CYDAS 1602, CYDAS 1202 & CYDAS 100x Series
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Event notification
Event notification functions and methods supported
PCI Versions Only
UDR:
cbEnableEvent(), cbDisableEvent()
UDR for .NET: EnableEvent(), DisableEvent()
Event notification argument values
EventType ON_SCAN_ERROR, ON_PRETRIGGER, ON_DATA_AVAILABLE, ON_END_OF_AI_SCAN
For CYDAS 1602HRDAP and CYDAS 1602DAP the following argument values
are also valid:
ON_END_OF_AO_SCAN
Hardware considerations
Pacing analog input
Hardware pacing, external or internal clock supported.
The clock edge used to trigger acquisition for the external pacer may be rising or falling, and is selectable
using InstaCal.
For the CYDAS 1602HRDAP, the packet size is 256 samples. All others in this series have a packet size of
512 samples.
Analog input configuration
The analog input mode is selectable via InstaCal for either 8-channel differential or 16-channel single-ended.
Triggering and gating - CYDAS 1602 Series
Digital (TTL) and analog hardware triggering supported.
Analog thresholds are set relative to the ±10 V range. For example: a threshold of 0 equates to -10 V.
Thresholds of 65535 and 4095 correspond to +9.999695 and +9.995116 V for the 16-bit and 12-bit boards,
respectively.
When using analog trigger feature, one or both of the DACs are unavailable for other functions. If the trigger
function requires a single reference (
GATE_ABOVE, GATE_BELOW, TRIGABOVE, and TRIGBELOW), DAC0 is
available. If the trigger function requires two references (
GATE_IN_WINDOW, GATE_ OUT_WINDOW,
GATE_NEG_HYS and GATE_ POS_HYS), neither DAC is available for other functions.
Triggering and gating – CYDAS 1202, CYDAS 100x Series
Digital (TTL) hardware triggering supported.
Concurrent operations - CYDAS 1602 Series
Concurrent analog input and output scans supported. That is, CYDAS 1602 Series boards allow for operations
of analog input functions (
cbAInScan() and cbAPretrig()) and analog output functions (cbAOutScan()) to
overlap without having to call
cbStopBackground() between the start of input and output scans. Equivalent
UDR Library for .NET methods are
AInScan(), APretrig(), AOutScan(), and StopBackground().
Pacing analog output - CYDAS 1602 Series
Hardware pacing, external or internal clock supported.