CN1936614A - Drop and drag logic analyzer trigger - Google Patents

Abstract

A method of setting up a trigger function within the context of a data display on a logic analyzer provides a trigger setup window adjacent to the data display with a plurality of trigger setup icons. One of the trigger setup icons is selected as the trigger function, and a pointer representing the trigger function is dragged to a position on the data display. Dropping the pointer at the position on the data display completes the trigger function setup. An informational box associated with the pointer indicates the trigger function and a current parameter for the trigger function according to the location of the pointer on the data display. At completion of the trigger function setup, the trigger setup window provides the trigger function setup and allows an operator to edit the trigger function setup. The trigger function is executed at the next run of the logic analyzer.

Description

Drop and drag logic analyzer trigger

Technical field

The present invention relates to data acquisition, more particularly, relate to the drop and drag logic analyzer trigger that is used to discern data to be collected by logic analyser.

Background technology

Logic analyser is a kind of surveying instrument that is used to test and analyze digital circuit.In general, digital circuit comprises one or more buses, is used to transmit data, order and other information, and every bus has a plurality of circuits or passage.In described a plurality of passage each is sampled concurrently, produces the data sample that macromethod is used.But, the user only require see important, that is, represent a kind of interested state or the data of the particular state of the digital circuit of testing.Therefore, the user need be for gathering interested data, that is, some characteristic of recognition data and set up criterion, as the trigger event of filling the acquisition memory in the logic analyser, make acquisition memory comprise concurrently data sample around trigger event from dedicated tunnel.Can show the data of being gathered with the form of the waveform of each passage and corresponding bus then or show with the form on the bus with the numerical tabular of data representation.

The user can select acquiescence to trigger function as the initial analysis instrument, such as " to the triggering of any incident " function that finds on the logic analyser of making at the Tektronix of Ore. Beaverton Inc. (company).Described acquiescence triggers function and makes logic analyser process is caught data stream once activating " operation ", that is, just catch at the junior one group data sample of monitored passage, fill described acquisition memory.But, may be difficult at the data searching problem or the critical nature that are used for further analyzing.The logic analyser of Tektronix company provides two trigger programmed user interface at present, is used for identification and triggers function: " EasyTrigger " (simple and easy trigger) and " PowerTrigger " (power trigger device).But, in order to set up the trigger that triggers function being set, the user must forward independent modal dialog box screen to, the data presentation of the data that replacement is gathered.EasyTrigger provides pre-packaged setting for the triggering function that the user therefrom selects, and PowerTrigger is based on the State Selection process, and wherein the user is for triggering the required state of function input.On data presentation, quote existing feature when these triggers are provided with dialog box and be not easy handling.Trigger being provided with of function and require the user to the basic triggering ability of logic analyser and prepare sufficient understanding is arranged as the data characteristics of trigger event, that is, under the situation that does not have the data presentation background, set up and trigger function.

The Agilent Technologies of California, United States state PaloAlto, Inc. (company) have advanced trigger and simple and easy/rapid triggering function.The advanced function class that triggers is similar to above-mentioned EasyTrigger and PowerTrigger function.But simple and easy/rapid triggering function is operated under the environment that Wave data shows.When the user pulled rectangular area on Wave data shows each time, the definition trigger too fast as shown in Figure 1 and in U.S. Patent No. 6,615, was described in detail in 369.Message box is provided, the various times of indicating described rectangle to surround, and according to Wave data shown in the described rectangle-My Bus 1[0]=negative edge, most probable flip-flop states is provided.Present the drop-down menu that has option " setting trigger too fast " to the user.The user has no idea to revise trigger too fast, they or select it or ignore it.

When selecting the simple trigger function, just show that at corresponding Wave data the next door shows the trigger option, as U.S. Patent No. 6,624, the bus 1 of 829 Figure 17 is shown.The user can set up suitable state for each passage then, so that set up the triggering criterion of selecting from one group of designated state.

Even what a kind of dirigibility of needs was bigger also is easy to intuitively be provided with the method that triggers function for unfamiliar use operator.

Summary of the invention

Therefore, the invention provides the straightforward procedure of a kind of " drag and drop ", utilize graphical user interface (GUI) to set up the triggering function of logic analyser.The method that described foundation triggers function takes place in the scope of data presentation, and provides on the data presentation next door and to have the triggering that a plurality of triggerings are provided with icon window is set.Select these triggerings that one of icon is set, and the pointer that representative triggers function is dragged to a position on the data presentation.Described pointer is placed on the described position of data presentation and just finishes trigger function setup.The message box that is associated with pointer triggers function according to the position indication of pointer on data presentation and triggers the parameter current of function.When the setting that triggers function is finished, trigger that the trigger function setup that dialog box provides operator thereafter to edit being set.Just carry out described triggering function next time during image data.

Read following detailed description in conjunction with accompanying Claim book and accompanying drawing, will understand purpose of the present invention, advantage and other novel features.

Description of drawings

Fig. 1 is the planimetric map that is used to set up the logic analyser Wave data demonstration that triggers function according to prior art;

Fig. 2 is the planimetric map that is used for setting up according to another program the logic analyser Wave data demonstration that triggers function according to prior art;

Fig. 3 is the planimetric map that has the logic analyser Wave data demonstration of setting up triggering function ability according to of the present invention;

Fig. 4 has the planimetric map that triggers the logic analyser Wave data demonstration that window is set according to next door of the present invention;

Fig. 5 has on Wave data shows by the planimetric map of the logic analyser Wave data of the triggering function of drag and drop demonstration according to of the present invention;

Fig. 6 is the planimetric map according to the expression drag-and-drop operation result's who is suitable for editing of the present invention window; And

Fig. 7 has the planimetric map that triggers the logic analyser listings data demonstration that window is set according to next door of the present invention.

Embodiment

Fig. 3 represents that the Wave data of two data bus LA1:A2 and LA1:A3 shows, wherein at length illustrates the passage LA1:A3[0 of one of described data bus] to LA1:A3[7].The time that trigger point T is shown in described demonstration and adds and deduct and record from this point.In addition, several cursors are shown also, their expressions show a part that is included in the total data collection shown in the bottom in the shown waveform in described demonstration top.May utilize at first and under any circumstance trigger some samples that (Trigger on Anything) function has been gathered described Wave data demonstration.Two marks are shown in the bottom of described demonstration, one be measure and one be trigger.

When selecting triggered mark, the part of described demonstration is triggered by drag and drop the window replacement is set, shown in the base section among Fig. 4.Provide selection to the operator to a plurality of triggering functions.In described illustrative view, the operator can from passage edge, passage numerical value, bus numerical value, organize numerical value, glitch, setting and maintenance more and the inventory that under any circumstance triggers select.The operator can drag by " click " suitable icon and with it " " to the Wave data viewing area of pointer form (such as arrow or other suitable indicator), selects these to trigger in functions one.The message box that is associated with pointer just appears on Wave data shows, as shown in Figure 5.In this specific illustration, selected the passage edge to trigger function, and this message box illustrate described selected function and the trigger parameter that is associated with the pointer current location.Described pointer is positioned at passage LA1:A3[5] data on, near the edge, but inaccurate dropping on the edge.Described message box is described parametric representation: as passage LA1:A3[5] high or trigger when dropping, that is, all trigger at any edge of described passage.If showing when the edge that described type occurs (raising or reduction) time, described point roughly at specific edge (in the number of pixels scope in appointment), then described message box trigger.Described pointer " is put " setting of on described position, just finishing described triggering function.Described message box represents also when described pointer is in the position that it can't put down, that is, the position that described selected triggering function can't be carried out therein.

In case being positioned in Wave data, described triggering function shows that the triggering window of bottom just illustrates the triggering setting of current selected.The operator can edit shown information now, makes now, for example triggers function and occurs in passage A3[7] rising edge, as shown in Figure 6.

In addition, as shown in Figure 7, same triggered mark can show in conjunction with listings data to be used.Two groups of LA1:A2 shown in the figure and LA1:A3 show the sexadecimal numerical value of each interval time simultaneously.Can on the particular row that listings data shows, select, the described selected triggering function of drag and drop.The result window that selected triggering function and numerical value is shown appears on the similar window with Fig. 6, together with the group of being discerned or bus, shown value and to the arbitrary class value that shows or the selection of two class values.In addition, these values can be edited by the operator.

At sequence number No.[lawyer's office file number No.7993-US] be entitled as in the common unsettled U.S. Patent application of " the mock-up-type measurement value of logic analyser " and disclose similar drag and drop equipment and the method that analogue measurement is carried out in be used to opposite with trigger function setup.

Like this, the invention provides a kind of trigger function setup method of simplification, utilize the drag and drop technology to select in a plurality of triggering functions one, it is dragged on the data presentation, and place it on the interior certain location of described data presentation, so that finish described setting, and provide editor the ability of described setting for the operator simultaneously.

Claims (4)

1. the method that the triggering function is set in the scope of data presentation may further comprise the steps:

On behalf of a plurality of triggerings of corresponding a plurality of triggering functions, provide triggering window, described triggering window to comprise on described data presentation next door icon is set;

Select these triggerings one of icon to be set as described triggering function;

Described selected triggering function is dragged to a position on the described data presentation, and pointer is indicated the current location on the described data presentation; And

Described selected triggering function is placed on the described position, so that finish the setting of described triggering function.

2. the method for claim 1 wherein also is included in the described step that step is edited described trigger function setup afterwards of putting down.

3. the method for claim 1, wherein further comprising the steps of:

In the time of on being dragged to described data presentation, it is pointer that described selected triggering is provided with icon transformation; And

Message box is associated with described pointer, so that indicate the parameter current of described triggering function and described triggering function according to the position of described pointer on described data presentation.

4. the method for claim 1 is wherein further comprising the steps of: as to read the current location of described pointer when dragging described pointer, so that fill triggering definition window according to described current location and the data value that is associated.

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