B-18 API Commands
Appendix B,
887095
Personal Daq User’s Manual
daqAdcTransferStart
DLL Function
daqAdcTransferStart(DaqHandleT handle);
C
daqAdcTransferStart(DaqHandleT handle);
Visual BASIC
VBdaqAdcTransferStart&(ByVal handle&)
Delphi
daqAdcTransferStart( handle:DaqHandleT )
Parameters
Handle
Handle to the device to initiate an ADC transfer
Returns
DerrNoError
No error
See Also
daqAdcTranferSetBuffer, daqAdcTransferGetStat, daqAdcTransferStop
Program References
ADCEX1.C, FREQEX1.C, PULSEEX1.C, MULTEX1.C, DAQEX.FRM (VB), DAQEX.PAS (Delphi)
Used With
All devices
Description
daqAdcTransferStart
allows you to initiate an acquisition transfer. The transfer will be performed under the current active acquisition.
If no acquisition is currently active, the transfer will not initiate until an acquisition becomes active (via the
daqAdcArm
function). The
transfer will be characterized by the current settings for the transfer buffer. The transfer buffer can be configured via the
daqAdcSetTransferBuffer
function.
daqAdcTransferStop
DLL Function
daqAdcTransferStop(DaqHandleT handle);
C
daqAdcTransferStop(DaqHandleT handle);
Visual BASIC
VBdaqAdcTransferStop&(ByVal handle&)
Delphi
daqAdcTransferStop( handle:DaqHandleT )
Parameters
handle
Handle to the device for which the Adc data transfer is to be stopped
Returns
DerrNoError
No error
See Also
daqAdcTransferSetBuffer, daqAdcTransferStart, daqAdcTransferGetStat
Program References
None
Used With
All devices
Description
daqAdcTransferStop
allows you to stop a current buffer transfer, if one is active. The current transfer will be halted and no more data
will transfer into the transfer buffer. Though the transfer is stopped, the acquisition will remain active. Transfers can be re-initiated with
daqAdcStartTransfer
after the stop, as long as the current acquisition remains active. The acquisition can be halted by calling the
daqAdcDisarm
function.
daqClose
DLL Function
daqClose(DaqHandleT handle);
C
daqClose(DaqHandleT handle);
Visual BASIC
VBdaqClose&(ByVal handle&)
Delphi
daqClose(handle:DaqHandleT)
Parameters
handle
Handle to the device to be closed
Returns
DerrNoError
No error
See Also
daqOpen
Program References
ADCEX1.C, FREQEX1.C, PULSEEX1.C, MULTEX1.C, DIGEX1.C, INITEX1.C, DAQEX.FRM (VB),
DAQEX.PAS (Delphi)
Used With
All devices
Description
daqClose
is used to close a Personal Daq device. Once the specified device has been closed, no subsequent communication with the
device can be performed. In order to re-establish communications with a closed device, the device must be re-opened with the
daqOpen
function.
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