GPIB system and method which provides asynchronous event notific

Details GPIB system and method which provides asynchronous event notific GPIB system and method which provides asynchronous event notific

1997-07-22

1999-10-26

Ray, Gopal C.

Electrical computers and digital processing systems: processing

Processing control

Context preserving (e.g., context swapping, checkpointing,...

709108, 710100, G06F 1900, G05B 2302

Patent

active

059745410

ABSTRACT:
A GPIB system which includes asynchronous event notification. The GPIB application first provides a notify request to GPIB driver level software, preferably an ibnotify call or a GPIB Notify OLE control. The notify request includes a unit descriptor which uniquely identifies the GPIB device, event information regarding a plurality of GPIB events to monitor, a reference to a callback function in the GPIB application, and user defined reference data for the callback function. In response to the notify request, the GPIB driver level software begins monitoring events specified by the event information. When an event occurs which is being monitored, the GPIB driver level software recognizes the event and invokes the callback function. The invocation of the callback function is performed asynchronously to the GPIB application. The callback function may include one or more calls to one or more functions in the GPIB driver software. The callback function also uses the user defined reference data to aid in handling the event.

REFERENCES:
patent: 5717614 (1998-02-01), Shah et al.
patent: 5724272 (1998-03-01), Mitchell et al.
patent: 5771388 (1998-06-01), Mondrik et al.
patent: 5845140 (1998-12-01), Stanley et al.
patent: 5847955 (1998-12-01), Mitchell et al.

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