179 lines
6.5 KiB
C
179 lines
6.5 KiB
C
///////////////////////////////////////////////////////////////////////////////
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//
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// pci416_32dll.h: Header file for DLL functions that perform board setup and
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// data acquisition using FIFO polling.
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// Copyright (c) Datel, Inc. 1997
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// Platform: Win95, Win NT
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// Compiler: MVC4.0 + DDK
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// Version: 3.0
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// Author: GS
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// created: 2/28/97
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// modified: 7/9/98
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///////////////////////////////////////////////////////////////////////////////
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#ifndef PCI416_32DLL_H
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#define PCI416_32DLL_H
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#include <windows.h>
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// REALTYPE is defined as double (size: 8 bytes)
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/******************************************************************************
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Function: get_adm_inf
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Description: Returns specific info of installed A/D module.
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Use this function instead the get_adm_stats function for DLL calls.
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The get_adm_stats function expects a pointer to an ADM_STATS
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structure which is only available in C programs. Other compilers and
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programs may generate structures with different size and boundaries
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that could cause sytem crashes!
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Inputs: DWORD brdindex : Index of board.
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Max. index = number of PCI-416 boards - 1
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Char *model : ADM model
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WORD *bits : Resolution in bits
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WORD *channels : no.of channels
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WORD *shortcycle : 1== can be short cycled
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REALTYPE *fmax_single: max. sample freq. single channel mode
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REALTYPE *fmax_scan: max. sample freq. multi channel mode
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return: Error status as define in winerror.h
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NOERROR
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ERROR_INVALID_HANDLE
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ERROR_DEV_NOT_EXIST
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******************************************************************************/
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DWORD LIB_TYPE get_adm_inf(DWORD brdindex, WORD *model, WORD *bits, WORD *channels,
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WORD *shortcycle, REALTYPE *fmax_single, REALTYPE *fmax_scan);
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/******************************************************************************
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Function: set_modes
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Description: Setup board paramters: sample rate, trigger rate, clock and trigger
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source etc.
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Inputs: DWORD brdindex : Index of board.
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Max. index = number of PCI-416 boards - 1
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WORD ClockSrc : 0= INTERNAL, 1= EXTERNAL,
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other : internal with sample rate set to
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max. value in scan mode.
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REALTYPE SampleRate : A/D sample rate, if src set to INTERNAL
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If ClockSrc is not set to INTERNAL or
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EXTERNAL the sample rate is set to
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max. value in scan mode.
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DWORD SamplesPerTrigger: Number of samples to collect
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at each trigger pulse.
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WORD TriggerSrc : 0= INTERNAL,1 = EXTERNAL,
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2= ANALOG Rising Edge, 3= ANALOG Falling Edge,
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other: INTERNAL
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WORD Channel : channel of acquisition in single channel mode
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or last scan channel in scan mode if applicable
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0 <= Channel < number of channels
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WORD PreTrigger : 1== PreTrigger
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WORD Scan : 1== Scan mode
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WORD Marker : 1== set marker bit
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return: Error status as define in winerror.h
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NOERROR
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ERROR_INVALID_HANDLE
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ERROR_DEV_NOT_EXIST
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******************************************************************************/
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DWORD LIB_TYPE set_modes (DWORD brdindex,
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WORD ClockSrc,
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REALTYPE SampleRate,
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DWORD SamplesPerTrigger,
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WORD TriggerSrc,
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WORD Channel,
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WORD PreTrigger,
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WORD Scan,
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WORD Marker);
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/******************************************************************************
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Function: start_daq
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Description: Starts data acquisition.
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All registers have to be set prior this function call with
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set_mode!
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Inputs: DWORD brdindex : Index of board.
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Max. index = number of PCI-416 boards - 1
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WORD TriggerMode : 0== PreTrigger, external trigger,
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1== Single Internal Trigger,
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2== Multi Internal Trigger
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other default to single trigger
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REALTYPE *TriggerRate: trigger rate for multi trigger
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Output: REALTYPE *TriggerRate: actual trigger rate set
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Note: If PreTrigger was selected in set_modes only an external trigger
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is valid. Calls other than start_daq(brdindex, 0) will result in
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invalid data.
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On the other hand if PreTrigger was NOT set in set_modes
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a start_daq(brdindex, 0) call does not start the A/D conversion.
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return: Error status as define in winerror.h
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NOERROR
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******************************************************************************/
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DWORD LIB_TYPE start_daq(DWORD brdindex, WORD TriggerMode,
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REALTYPE *TriggerRate);
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/******************************************************************************
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Function: stop_daq
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Description: Stops data acquisition.
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Inputs: DWORD brdindex : Index of board.
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Max. index = number of PCI-416 boards - 1
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return: Error status as define in winerror.h
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NOERROR
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******************************************************************************/
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DWORD LIB_TYPE stop_daq(DWORD brdindex);
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/******************************************************************************
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Function: scan_status
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Description: Acquires data by polling on the FIFO half full flag.
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Inputs: DWORD brdindex : Index of board.
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Max. index = number of PCI-416 boards - 1
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WORD ClockSrc : C_INTERNAL, C_EXTERNAL,
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default : internal with sample rate set to
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max. value in scan mode.
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REALTYPE SampleRate : A/D sample rate, if src set to C_INTERNAL
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If ClockSrc is not set to C_INTERNAL or
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C_EXTERNAL the sample rate is set to
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max. value in scan mode.
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DWORD TotalSamples : Total number of samples to collect
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DWORD SamplesPerTrigger: Number of samples to collect
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at each trigger pulse.
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DWORD Frames : Number of triggers.
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WORD TriggerSrc : T_INTERNAL,T_EXTERNAL,T_ANALOG,
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default: T_INTERNAL
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REALTYPE TriggerRate : Trigger rate
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WORD Channel : channel of acquisition in single channel mode
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or last scan channel in scan mode if applicable
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0 <= Channel < number of channels
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BOOL PreTrigger : TRUE== PreTrigger
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BOOL Scan : TRUE== Scan mode
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BOOL Marker : TRUE== set marker bit
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PVOID buffer : User buffer to store the A/D data
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return: state of the FIFO Full flag ( 0 = No overflow, 1 = FIFO FULL (overflow)
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-1 error -> retreive error with pci416_getError
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******************************************************************************/
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INT LIB_TYPE scan_status (DWORD brdindex,
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WORD ClockSrc,
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REALTYPE SampleRate,
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DWORD TotalSamples,
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DWORD SamplesPerTrigger,
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DWORD Frames,
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WORD TriggerSrc,
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REALTYPE TriggerRate,
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WORD Channel,
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BOOL PreTrigger,
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BOOL Scan,
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BOOL Marker,
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PVOID buffer);
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#endif
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