Measurement Computing Personal Daq rev.6.0 - Manual (Page 136)

B-4 API Commands Appendix B, 887095 Personal Daq User’s Manual
daqAdcDisarm
DLL Function daqAdcDisarm(DaqHandleT handle);
C daqAdcDisarm(DaqHandleT handle);
Visual BASIC VBdaqAdcDisarm&(ByVal handle&)
Delphi daqAdcDisarm(handle:DaqHandleT)
Parameters handle handle to the device to disable ADC acquisitions
Returns DerrNoError - No error
See Also daqAdcArm
Program References None
Used With All devices
Description
daqAdcDisarm allows you to disarm an acquisition if one is currently active.
• If the specified trigger event has not yet occurred, the trigger event will be disabled and no acquisition will be performed.
• If the trigger event has occurred, both the acquisition and the transfer of data come to a halt.
daqAdcGetFreq
DLL Function daqAdcGetFreq(DaqHandleT handle, PFLOAT freq);
C daqAdcGetFreq(DaqHandleT handle, PFLOAT freq);
Visual BASIC VbdaqAdcGetFreq&(ByVal handle&, freq!)
Delphi daqAdcGetFreq(handle:DaqHandleT; var freq:single)
Parameters handle Handle to the device for which to get the current frequency setting
freq A variable to hold the currently defined sampling frequency in Hz
Valid values: 100000.0 - 0.0002
Returns DerrNoError - No errors
See Also daqAdcSetFreq, daqAdcSetClock
Program References None
Used With All devices
Description
daqAdcGetFreq reads the sampling frequency of the pacer clock.
daqAdcGetScan
DLL Function daqAdcGetScan(DaqHandleT handle, PDWORD channels, daqAdcGain *gains, PDWORD flags,
PDWORD chanCount);
C daqAdcGetScan(DaqHandleT handle, PDWORD channels, DaqAdcGain *gains, PDWORD flags,
PDWORD chanCount);
Visual BASIC VbdaqAdcGetScan&(ByVal handle&, channels&(), gains&(), flags&(), chanCount&)
Delphi daqAdcGetScan( handle:DaqHandleT; channels:PDWORD; gains:daqAdcGainP; flags:PDWORD;
chanCount:PDWORD )
handle Handle to the device for which to get the current scan configuration.
channels An array to hold up to 512 channel numbers or 0 if the channel information is not desired.
*gains An array to hold up to 512 gain values or 0 if the channel gain information is not desired
flags Channel configuration flags in the in the form of a bit mask
Parameters
chanCount A variable to hold the number of values returned in the chans and gains arrays
Returns DerrNoError No error
See Also daqAdcSetScan, daqAdcSetMux
Program References None
Used With All devices
Description
daqAdcGetScan reads the current scan group consisting of all channels currently configured. The returned parameter settings directly
correspond to those set using the daqAdcSetScan function. For further description of these parameters, refer to daqAdcSetScan. See
ADC Flags Definition table for channel flag definitions.