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gtrg.h File Reference

Defines public structs and methods for trigger messaging. More...

Data Structures
struct	_BFtrgMsg
	Bit field definitions for a 32-bit trigger message. More...
union	_trgMsg
	union for 32-bit trigger message More...
Defines
#define	TRG_DISABLE_THROTTLE   ((unsigned short)(1<<5))
	mask enable bit of the trgMaskCfg register for the trigger throttle
#define	TRG_DISABLE_3_IN_A_ROW   ((unsigned short)(1<<4))
	mask enable bit of the trgMaskCfg register for the 3-in-a-row trigger source.
#define	TRG_DISABLE_CAL_HIGH   ((unsigned short)(1<<3))
	mask enable bit of the trgMaskCfg register for the CAL_high trigger source.
#define	TRG_DISABLE_CAL_LOW   ((unsigned short)(1<<2))
	mask enable bit of the trgMaskCfg register for the CAL_low trigger source.
#define	TRG_DISABLE_EXT_TRG   ((unsigned short)(1<<1))
	mask enable bit of the trgMaskCfg register for the external trigger source.
#define	TRG_DISABLE_INT_TRG   ((unsigned short)1)
	mask enable bit of the trgMaskCfg register for the internal trigger source.
Typedefs
typedef _trgMsg	trgMsg
	typedef for union _trgMsg
Functions
int	gGetTrgMaskCfgReg (gnatHandle gh, unsigned int *val)
	returns the contents of the trigger mask / config register
int	gSetTrgMaskCfgReg (gnatHandle gh, unsigned int val)
	sets the contents of the trigger mask / config register
int	gGetTrgOptReg (gnatHandle gh, unsigned int *val)
	returns the contents of the trigger options register
int	gSetTrgOptReg (gnatHandle gh, unsigned int val)
	sets the contents of the trigger options register
int	gSetTrgSelfTrg (gnatHandle gh)
	Creates a self trigger signal.
int	gReadTrgMsg (gnatHandle gh, gResponse *rsp)
	Attempts to read a trigger message from record FIFO.

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Detailed Description

Defines public structs and methods for trigger messaging.

Author:

Curt Brune -- curt@slac.stanford.edu

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Function Documentation

int gGetTrgMaskCfgReg (  gnatHandle  gh, unsigned int *  val )

returns the contents of the trigger mask / config register Parameters: gh  handle of device val  pointer to storage to hold register on return Returns: OK on success See also: gSetTrgMaskCfgReg()

int gGetTrgOptReg (  gnatHandle  gh, unsigned int *  val )

returns the contents of the trigger options register Parameters: gh  handle of device val  pointer to storage to hold register on return Returns: OK on success See also: gSetTrgOptReg()

int gReadTrgMsg (  gnatHandle  gh, gResponse *  rsp )

Attempts to read a trigger message from record FIFO. Parameters: gh  handle of device rsp  pointer to response structure to hold the result Returns: OK on success The trigger message is 32 bits long and looks like this in the record FIFO (18 bits wide). ----------------------------------- 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 0 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0 ----------------------------------- Word 1 1 M M M M M M M M M M M M M M M M M Word 2 D D M M M M M M M M M M M M M M Z Z Word 3 D D Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Word 4 D D Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Word 5 D D Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Word 6 D D Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Word 7 D D Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Word 8 D D Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Word 9 D D Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Word 10 D D Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Z Legend: 1 -- Start Bit, first bit of trigger message M -- Message bit, 31 in all D -- Do not care, ignored Z -- Zero I want to return the start bit plus the 31 message bits.

int gSetTrgMaskCfgReg (  gnatHandle  gh, unsigned int  val )

sets the contents of the trigger mask / config register Parameters: gh  handle of device val  value to put in register Returns: OK on success See also: gGetTrgMaskCfgReg()

int gSetTrgOptReg (  gnatHandle  gh, unsigned int  val )

sets the contents of the trigger options register Parameters: gh  handle of device val  value to put in register Returns: OK on success See also: gGetTrgOptReg()

int gSetTrgSelfTrg (  gnatHandle  gh  )

Creates a self trigger signal. Parameters: gh  handle of device Returns: OK on success Raises the self trigger signal -- the COMM board may ignore this signal if the internal trigger is disable (see gSetTrgMask() ).

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