PicoScope 6 PC Oscilloscope Software User's Guide psw.en r32 Copyright © 2007-2013 Pico Technology Ltd. All rights reserved.
PicoScope 6 User's Guide I Table of Contents 1 Welcome ....................................................................................................................................1 2 PicoScope 6....................................................................................................................................2 overview 3 Introduction....................................................................................................................................
II Table of Contents 6 Menus ....................................................................................................................................33 1 File menu ........................................................................................................................................34 1 Save As dialog......................................................................................................................................................................35 ......
PicoScope 6 User's Guide III ......................................................................................................................................................................142 2 Advanced trigger types ........................................................................................................................................148 10 Zooming and Scrolling toolbar .................................................................................................................
PicoScope 6 User's Guide 1 1 Welcome Welcome to PicoScope 6, the PC Oscilloscope software from Pico Technology. With a scope device from Pico Technology, PicoScope turns your PC into a powerful PC Oscilloscope with all the features and performance of a bench-top oscilloscope at a fraction of the cost. How to use this manual What's new in this version? Using PicoScope for the first time Software version: PicoScope R6.7.39 (Release Notes) Copyright © 2007-2013 Pico Technology Ltd. All rights reserved.
2 2 PicoScope 6 overview PicoScope 6 overview PicoScope 6 is Pico Technology's software for PC Oscilloscopes. Higher performance Faster capture rates, making it easier to see fast-moving signals Faster data processing Better support for the latest PicoScope USB oscilloscopes Improved usability and appearance Clearer graphics and text Tool tips and help messages to explain all features Easy point-and-click tools for panning and zooming New features psw.en r32 The latest Windows .
PicoScope 6 User's Guide 3 3 Introduction PicoScope 6 is a comprehensive software application for Pico Technology oscilloscopes. Used with a PicoScope hardware device, it creates an oscilloscope and spectrum analyzer on your PC. PicoScope 6 supports the devices listed in the Device feature table. It runs on any computer with Windows XP SP3 through to Windows 8. (See System requirements for further recommendations.
4 3.3 Introduction Trade marks Windows is a registered trade mark of Microsoft Corporation. Pico Technology, PicoScope and PicoLog are internationally registered trade marks. 3.4 3.5 Contact information Address: Pico Technology James House Colmworth Business Park ST. NEOTS Cambridgeshire PE19 8YP United Kingdom Phone: Fax: +44 (0) 1480 396395 +44 (0) 1480 396296 Office hours: 09:00 to 17:00 Mon-Fri Technical support email: Sales email: support@picotech.com sales@picotech.com Web site: www.
PicoScope 6 User's Guide 3.6 5 System requirements To ensure that PicoScope operates correctly, you must have a computer with at least the minimum system requirements to run your Windows operating system, which must be one of the versions listed in the following table. The performance of the oscilloscope will be better with a more powerful PC, and will benefit from a multi-core processor.
6 4 Using PicoScope for the first time Using PicoScope for the first time We have designed PicoScope to be as easy as possible to use, even for newcomers to oscilloscopes. Once you have followed the introductory steps listed below, you will soon be on your way to becoming a PicoScope expert. 1. 2. 3. 4. 5. Install the software. Load the CD-ROM that is included with your scope device, then click the "Install Software" link and follow the on-screen instructions. Plug in your scope device.
PicoScope 6 User's Guide 5 7 PicoScope and oscilloscope primer This chapter explains the fundamental concepts that you will need to know before working with the PicoScope software. If you have used an oscilloscope before, then most of these ideas will be familiar to you. You can skip the Oscilloscope basics section and go straight to the PicoScope-specific information. If you are new to oscilloscopes, please take a few minutes to read at least the Oscilloscope basics and PicoScope basics topics. 5.
8 5.2 PicoScope and oscilloscope primer PC Oscilloscope basics A PC Oscilloscope is a measuring instrument that consists of a hardware scope device and an oscilloscope program running on a PC. Oscilloscopes were originally stand-alone instruments with no signal processing or measuring abilities, and with storage only available as an expensive extra. Later oscilloscopes began to use new digital technology to introduce more functions, but they remained highly specialised and expensive instruments.
PicoScope 6 User's Guide 5.3.1 9 Capture modes PicoScope can operate in three capture modes: scope mode, spectrum mode and persistence mode. The mode is selected by buttons in the Capture Setup Toolbar. In scope mode, PicoScope displays a main scope view, optimises its settings for use as a PC Oscilloscope, and allows you to directly set the capture time. You can still display one or more secondary spectrum views.
10 5.3.2 PicoScope and oscilloscope primer How do capture modes work with views? The capture mode tells PicoScope whether you are mainly interested in viewing waveforms (scope mode) or frequency plots (spectrum mode). When you select a capture mode, PicoScope sets up the hardware appropriately and then shows you a view that matches the capture mode (a scope view if you selected scope mode or persistence mode, or a spectrum view if you selected spectrum mode).
PicoScope 6 User's Guide 5.4 11 PicoScope window The PicoScope window shows a block of data captured from the scope device. When you first open PicoScope it contains one scope view, but you can add more views by clicking Add view in the Views menu. The screen shot below shows all the main features of the PicoScope window. Click on the underlined labels for more information.
12 5.5 PicoScope and oscilloscope primer Scope view A scope view shows the data captured from the scope as a graph of signal amplitude against time. (See Oscilloscope basics for more on these concepts.) PicoScope opens with a single view, but you can add more views by using the views menu. Similar to the screen of a conventional oscilloscope, a scope view shows you one or more waveforms with a common horizontal time axis, with signal level shown on one or more vertical axes.
PicoScope 6 User's Guide 5.6 13 MSO view Applicability: mixed-signal oscilloscopes (MSOs) only The MSO view shows mixed analog and digital data on the same timebase. Digital Inputs button: Switches digital view on and off, and opens the Digital Setup dialog. Analog view: Shows the analog channels. The same as a standard scope view. Digital view: Shows the digital channels and groups. See digital view. Splitter: Drag up and down to move the partition between analog and digital sections.
14 5.6.1 PicoScope and oscilloscope primer Digital view Location: MSO view Note 1: You can right-click on the digital view to obtain the Digital Context Menu. Note 2: If the digital view is not visible when required, check that (a) the Digital Inputs button is activated and (b) at least one digital channel is selected for display in the Digital Setup dialog. psw.en r32 Digital channel: Displayed in the order in which they appear in the Digital Setup dialog, where they can be renamed.
PicoScope 6 User's Guide 5.6.2 15 Digital context menu Location: right-click on the digital view Sub View: Format: Draw Groups: Analog: View or hide the analog scope view. Digital: View or hide the digital scope view. Also available from the Views menu. The numerical format in which group values are displayed in the digital scope view. By Values: Draw groups with transitions only where the value changes: By Time: Draw groups with transitions spaced equally in time, once per sampling period.
16 5.7 PicoScope and oscilloscope primer XY view An XY view, in its simplest form, shows a graph of one channel plotted against another. XY mode is useful for showing phase relationships between periodic signals (using Lissajous figures) and for plotting I-V (current-voltage) characteristics of electronic components. In the example above, two different periodic signals have been fed into the two input channels. The smooth curvature of the trace tells us that the inputs are roughly or exactly sine waves.
PicoScope 6 User's Guide 5.8 17 Trigger marker The trigger marker shows the level and timing of the trigger point. The height of the marker on the vertical axis shows the level at which the trigger is set, and its position on the time axis shows the time at which it occurs. You can move the trigger marker by dragging it with the mouse or, for more accurate control, by using the buttons on the Triggering toolbar.
18 5.10 PicoScope and oscilloscope primer Spectrum view A spectrum view is one view of the data from a scope device. A spectrum is a diagram of signal level on a vertical axis plotted against frequency on the horizontal axis. PicoScope opens with a scope view, but you can add a spectrum view by using the views menu. Similar to the screen of a conventional spectrum analyzer, a spectrum view shows you one or more spectra with a common frequency axis.
PicoScope 6 User's Guide 5.11 19 Persistence mode Persistence mode superimposes multiple waveforms on the same view, with more frequent data or newer waveforms drawn in brighter colors than older ones. This is useful for spotting glitches, when you need to see a rare fault event hidden in a series of repeated normal events. Enable persistence mode by clicking the Persistence Mode button on the Capture Setup toolbar.
20 5.12 PicoScope and oscilloscope primer Measurements table A measurements table displays the results of automatic measurements. Each view can have its own table, and you can add, delete or edit measurements from this table. Measurements table columns Name The name of the measurement that you selected in the Add Measurement or Edit Measurement dialog. An "F" after the name indicates that the statistics for this measurement are filtered.
PicoScope 6 User's Guide 5.13 21 Pointer tool tip The pointer tool tip is a box that displays the horizontal and vertical axis values at the mouse pointer location. It appears temporarily when you click the background of a view. Pointer tool tip in a scope view Copyright © 2007-2013 Pico Technology Ltd. All rights reserved. psw.
22 5.14 PicoScope and oscilloscope primer Signal rulers The signal rulers (sometimes called cursors) help you measure absolute and relative signal levels on a scope, XY or spectrum view. In the scope view above, the two colored squares to the left of the vertical axis are the ruler drag-handles for channel A. Drag one of these downwards from its resting position in the top left corner, and a signal ruler (a horizontal dashed line) will extend from it.
PicoScope 6 User's Guide 5.15 23 Time rulers The time rulers measure time on a scope view or frequency on a spectrum view. In the scope view above, the two white squares on the time axis are the time ruler handles. When you drag these to the right from the bottom left corner, vertical dashed lines called time rulers appear. The rulers work in the same way on a spectrum view, but the ruler legend shows their horizontal positions in units of frequency rather than time.
24 5.16 PicoScope and oscilloscope primer Ruler legend The ruler legend is a box that displays the positions of all the rulers you have placed on the view. It appears automatically whenever you position a ruler on the view: Editing You can adjust the position of a ruler by editing any value in the first two columns. To insert a Greek µ (the micro symbol, meaning one millionth or x 10-6), type the letter 'u'.
PicoScope 6 User's Guide 5.18 25 Properties sheet Location: Views > View Properties Purpose: shows a summary of the settings that PicoScope 6 is using The Properties sheet appears on the right-hand side of the PicoScope window. No. samples. The number of samples captured. This may be lower than the number requested in the Maximum Samples control. A number in brackets is the number of interpolated samples if interpolation is enabled. Window.
26 5.19 PicoScope and oscilloscope primer Custom probes A probe is any transducer, measuring device or other accessory that you connect to an input channel of your scope device. PicoScope has a built-in library of common probe types, such as the x1 and x10 voltage probes used with most oscilloscopes, but if your probe is not included in this list you can use the Custom Probes dialog to define a new one.
PicoScope 6 User's Guide 5.20 27 Maths channels A maths channel is a mathematical function of one or more input signals. The function can be as simple as "Invert A", replacing the Invert button on a conventional oscilloscope, or a complex function that you define. It can be displayed in a scope, XY or spectrum view in the same way as an input signal, and like an input signal it has its own measurement axis, scaling and offset button and color.
28 5.21 PicoScope and oscilloscope primer Reference waveforms A reference waveform is a stored copy of an input signal. You can create one by right-clicking on the view, selecting the Reference Waveforms command and selecting which channel to copy. It can be displayed in a scope or spectrum view in the same way as an input signal, and like an input signal it has its own measurement axis, scaling and offset button and color.
PicoScope 6 User's Guide 5.22 29 Serial decoding You can use PicoScope to decode data from a serial bus such as I2C or CAN Bus. Unlike a conventional bus analyzer, PicoScope lets you see the high-resolution electrical waveform at the same time as the data. The data is integrated into the scope view, so there's no need to learn a new screen layout. How to use Serial Decoding 1. Select the Tools > Serial Decoding menu command. 2. Complete the Serial Decoding dialog. 3.
30 5.23 PicoScope and oscilloscope primer Mask limit testing Mask limit testing is a feature that tells you when a waveform or spectrum goes outside a specified area, called a mask, drawn on the scope view or spectrum view. PicoScope can draw the mask automatically by tracing a captured waveform, or you can draw it manually. Mask limit testing is useful for spotting intermittent errors during debugging, and for finding faulty units during production testing.
PicoScope 6 User's Guide 5.24 31 Alarms Alarms are actions that PicoScope can be programmed to execute when certain events occur. Use the Tools > Alarms command to open the Alarms dialog, which configures this function. The events that can trigger an alarm are: Capture - when the oscilloscope has captured a complete waveform or block of waveforms. Buffers Full - when the waveform buffer becomes full. Mask(s) Fail - when a waveform fails a mask limit test.
32 5.25 PicoScope and oscilloscope primer Buffer Navigator The PicoScope waveform buffer can hold up to 10,000 waveforms, subject to the amount of available memory in the oscilloscope. The Buffer Navigator helps you to scroll through the buffer quickly to find the waveform you want. To begin, click the Buffer Navigator button in the Buffer Navigation toolbar.
PicoScope 6 User's Guide 6 33 Menus Menus are the quickest way to get to PicoScope's main features. The Menu bar is always present at the top of the PicoScope main window, just below the window's title bar. You can click any of the menu items, or press the Alt key and then navigate to the menu using the arrow keys, or press the Alt key followed by the underlined letter in one of the menu items. The list of items in the menu bar may vary depending on the windows that you have open in PicoScope.
34 6.1 Menus File menu Location: Menu bar > File Purpose: gives access to file input and output operations Connect Device. This command appears only when there is no scope device connected. It opens the Connect Device dialog, which allows you to select the scope device you wish to use. Open. Allows you to select the file you want to open. PicoScope can open .psdata and .psd files, which contain both waveform data and scope device settings, and .pssettings and .
PicoScope 6 User's Guide 35 Print. Opens a standard Windows Print dialog, which allows you to choose a printer, set printing options and then print the selected view. Recent Files. A list of recently opened or saved files. This list is compiled automatically, but you can clear it using the Files page of the Preferences dialog. Exit. Close PicoScope without saving any data. 6.1.
36 psw.en r32 Menus Text (Tab delimited) files (.txt) Stores waveforms as a text file with tabseparated values. The values are the same as those in the CSV format. (Details) Bitmap images (.bmp) Stores a picture of the waveforms, graticule and rulers in Windows BMP format. The image is 800 pixels wide by 600 pixels high, in 16 million colors, and uncompressed. BMP files are suitable for importing into Windows desktop-publishing programs. GIF images (.
PicoScope 6 User's Guide 6.1.1.
38 Menus Note. CSV files are not the best choice of format if you are working in a language that uses the comma character as the decimal point. Instead, try using the tab-delimited format which works in almost the same way. Tab-delimited Tab-delimited files store data in the following format: Time (µs) 500.004 -500.002 -500 … Channel A (V) 5.511 4.724 5.552 Channel B (V) 1.215 2.130 2.
PicoScope 6 User's Guide 39 The variables described above (under Importing into Matlab) are stored in a series of data blocks, each preceded by a header. Each variable has its own header and data block and the corresponding variable names are stored with them (such as A, B, Tstart). The following sections describe how to read each variable from the file. The order of the data blocks is not specified, so programs should look at the variable names to decide which variable is currently being loaded.
40 6.1.2 Menus Startup Settings menu Location: File > Startup Settings Purpose: allows you to load, save and restore the PicoScope 6 startup settings Save Startup Settings. Saves your current settings ready for when you next select Load Startup Settings. These settings are remembered from one session of PicoScope 6 to the next. Load Startup Settings. Returns to the settings you created with the Save Startup Settings command. Reset Startup Settings.
PicoScope 6 User's Guide 6.2 41 Edit menu Location: Purpose: Menu bar > Edit gives access to the clipboard-related and note editing functions Copy as Image. Copies the active view to the clipboard as a bitmap. You can then paste the image into any application that accepts bitmap images. Copy as Text. Copies the data in the active view to the clipboard as text. You can paste the data into a spreadsheet or other application.
42 6.2.1 Menus Notes area Location: Purpose: Edit > Notes a text box for typing your own notes A Notes area can be displayed at the bottom of the PicoScope window. You can enter any text you wish in this area. You can also copy text from another program and paste it here. 6.2.2 psw.en r32 Vehicle Details dialog (PicoScope Automotive only) Location: Edit > Details File > Save Purpose: a vehicle database to help you keep track of your customers Copyright © 2007-2013 Pico Technology Ltd.
PicoScope 6 User's Guide 6.3 43 Views menu Location: Menu bar > Views, or right-click on a view Purpose: controls the layout of the current view, which is a rectangular area of the PicoScope window that display scope, spectrum or other kinds of data The contents of the Views menu may vary depending on where you click and how many views are open. If the current view contains a Measurements table, a combined Measurements menu and Views menu will appear.
44 Menus Grid Layout: The grid layout defaults to "Automatic" mode, in which PicoScope automatically arranges views in a grid. You can also select one of the standard grid layouts or create a custom layout, which PicoScope will preserve as you add or remove views. Arrange Grid Layout: Adjust the grid layout to fit the number of views. Moves any tabbed views to empty viewports. Overrides any previous choice of grid layout.
PicoScope 6 User's Guide 6.4 45 Measurements menu Location: Menu bar > Measurements Purpose: controls the Measurements table Add measurement. Adds a row to the measurements table, and opens the Edit Measurement Dialog. You can also find this button on the Measurements toolbar. Edit measurement. This takes you to the Edit Measurement Dialog. You can find this button on the Measurements toolbar, or you can edit a measurement by double-clicking on a row of the measurements Table. Delete measurement.
46 6.4.1 Menus Add / Edit Measurement dialog Location: Measurements toolbar > Add Measurement or Edit Measurement button Views menu > Add Measurement or Edit Measurement button Double-click a measurement in the measurements table Purpose: allows you to add a measurement of a waveform to the selected view, or edit an existing measurement PicoScope automatically refreshes the measurement every time it updates the waveform.
PicoScope 6 User's Guide 6.4.2 47 Advanced measurement settings Location: Add Measurement or Edit Measurement dialog > Advanced Purpose: adjusts parameters of certain measurements such as filtering and spectrum analysis Threshold Some measurements, such as Rise Time and Fall Time, can be made using different thresholds. Select the appropriate ones here. When comparing rise and fall times with manufacturers' specifications, it is important to use the same thresholds for all measurements.
48 psw.en r32 Menus Filter control PicoScope can low-pass filter the statistics to produce more stable and more accurate numbers. Filtering is not available on all measurement types. Enable Filter - check to enable low-pass filtering, if available. An "F" will appear after the measurement name in the measurements table. Automatic - check to set the low-pass filter characteristics automatically Cutoff Frequency The filter cut-off frequency normalised to the measurement rate. Range: 0 to 0.5.
PicoScope 6 User's Guide 6.5 49 Tools menu Location: Menu bar > Tools Purpose: gives access to assorted tools for signal analysis Custom Probes: Define new probes and copy, delete, move and edit existing ones. Maths Channels: Add or edit a channel that is a mathematical function of one or more other channels. Reference Waveforms: Create, load or save a channel as a copy of an existing channel. Serial Decoding: Decode and display the contents of serial data stream such as CAN bus.
50 6.5.1 Menus Custom Probes dialog Location: Tools > Custom Probes, or click the Channel Options button: Purpose: allows you to select predefined probes and set up custom probes The selection of probes shown may vary depending on the version of the PicoScope software that you are using. Understanding the probe list All the probes that PicoScope knows about are listed under three main headings: Built-in, Library and Loaded.
PicoScope 6 User's Guide 51 Adding a new probe to your library There are three ways to create a new probe: 1. Use the Duplicate button as described above. 2. Click New Probe... to define a new probe. 3. Click Import to load a probe definition from a *.psprobe file and add it to your library. These files are normally supplied by Pico, but you can also create your own by defining a new probe and then clicking Export.
52 6.5.1.1.2 Menus Edit Existing Custom Probe dialog Location: Custom Probes dialog > Edit Purpose: introduces you to the process for editing an existing custom probe How to use the dialog Click Next to continue to the Probe Output Units dialog, where you can edit the custom probe. Click Jump forward... if you have already set up the custom probe's basic characteristics and want to add or change a custom range manually. psw.en r32 Copyright © 2007-2013 Pico Technology Ltd. All rights reserved.
PicoScope 6 User's Guide 6.5.1.1.3 53 Probe Output Units dialog Location: Create new Custom Probe dialog > Next Purpose: allows you to choose the units that PicoScope will use to display the output of your custom probe How to use the dialog To choose a standard SI unit, click Use a standard unit from the list and select one from the list. To enter a custom unit, click Use the custom unit defined below and type the unit name and symbol. Click Next to continue to the Scaling Method dialog.
54 6.5.1.1.4 Menus Scaling Method dialog Location: Probe Output Units dialog > Next Purpose: allows you to define the characteristic that PicoScope will use to convert the custom probe's voltage output to a measurement on the display How to use the dialog If you do not require any scaling or offset, click the Don't apply any scaling button.
PicoScope 6 User's Guide 6.5.1.1.4.1 55 Lookup-table Scaling dialog Location: Purpose: Scaling Method dialog > Create a Look-up Table or Edit the Lookup Table... creates a look-up table to calibrate a custom probe Editing the Look-up Table First, select suitable values in the Input units and Scaled units drop-down boxes. For example, if your probe is a current clamp that outputs one millivolt per ampere over the range -600 to +600 amperes, select Input units of millivolts and Output units of amperes.
56 6.5.1.1.5 Menus Range Management dialog Location: Purpose: Scaling Method dialog > Next allows you to override PicoScope's automatic range-creation feature for custom probes. In most cases, the automatic procedure will be sufficient. How to use the dialog If you select Let the software manage my ranges for me automatically, then clicking Next will take you to the Custom Probe Identification dialog. PicoScope's automatic ranges should be ideal for most applications.
PicoScope 6 User's Guide 6.5.1.1.6 57 Manual Ranges Setup dialog Location: Range Management dialog > Advanced > Next Purpose: creates ranges manually for your custom probe How to use the dialog If you wish, you can click Auto Generate Ranges and the program will create a number of ranges for the selected device. This will create the same list of ranges that you would have obtained by selecting Let the software manage my ranges for me automatically in the previous dialog.
58 6.5.1.1.6.1 Menus Edit Range dialog Location: Manual Ranges Setup dialog > Edit or New Range Purpose: editing a manual range for a custom probe Automatic mode If you leave the "Automatic" radio button pressed, the program will automatically determine the best hardware input range for the device as you change the Scaled range limits. This is the best mode to use for almost all ranges.
PicoScope 6 User's Guide 59 The range utilisation bar This diagram at the bottom of the dialog shows how well the input range of the device is matched to the scaled range. • Green - The section of the input range that is used by the scaled range. This should be as large as possible, to maximise the use of the scope device's resolution. • Blue - Areas of the input range that are not being used. These indicate wasted resolution. • Grey - Parts of the scaled range that are not covered by the input range.
60 6.5.1.1.6.2 Menus Edit Range dialog (Advanced tab) Location: Manual Ranges Setup dialog > Edit or New Range > Advanced tab Purpose: configuring advanced options for custom probes These options are for factory use and we recommend that you do not change them. Finishing Clicking OK or Cancel will return you to the Manual Ranges Setup dialog. psw.en r32 Copyright © 2007-2013 Pico Technology Ltd. All rights reserved.
PicoScope 6 User's Guide 6.5.1.1.7 61 Filter Method dialog Location: Manual Ranges Setup dialog > Next Purpose: sets up lowpass filtering for this custom probe This dialog has the same effect as manually enabling the Lowpass Filtering option in the Channel Options dialog. Filtering will only occur if the attached scope device supports filtering. Back: Go to the Manual Range Setup dialog Next: Go to the Custom Probe Identification dialog Copyright © 2007-2013 Pico Technology Ltd. All rights reserved.
62 6.5.1.1.8 Menus Custom Probe Identification dialog Location: Range Management dialog > Next Purpose: entering text to identify the custom probe How to use the dialog Click Back to return to the Filter Method dialog. The probe name will appear in the probe list. The description is not used in the present version of the software. Fill in the text fields and click Next to continue to the Custom Probe Finished dialog. psw.en r32 Copyright © 2007-2013 Pico Technology Ltd. All rights reserved.
PicoScope 6 User's Guide 6.5.1.1.9 63 Custom Probe Finished dialog Location: Custom Probe Identification dialog > Next Purpose: signals the end of the custom probe setup procedure How to use the dialog Click Back to return to the Custom Probe Identification dialog. Click Finish to accept your custom probe settings and return to the Custom Probes dialog. Copyright © 2007-2013 Pico Technology Ltd. All rights reserved. psw.
64 6.5.2 Menus Math Channels dialog Location: Tools > Math Channels Purpose: creating, editing and controlling math channels, which are virtual channels generated by mathematical functions of input channels Math Channel list The main area of the Math Channels dialog is the Math Channel list, which shows all the built-in, library and loaded maths channels. To choose whether or not a channel appears in the main PicoScope window, click the appropriate check box and then OK.
PicoScope 6 User's Guide 65 Edit Opens the Math Channel Wizard to allow you to edit the selected maths channel. You must first select a channel in the Library section of the Math Channel list. If the channel you want to edit is in the Built In or Loaded section, first copy it to the Library section by clicking Duplicate, then select it and click Edit. Delete Permanently deletes the selected math channel. Only math channels in the Library section can be deleted.
66 6.5.2.1 Menus Math Channel Wizard Location: Channel Setup toolbar > Math Channels button Purpose: creating, editing and controlling math channels, which are virtual channels generated by mathematical functions of input channels 1. Introduction 2. Equation 3. Channel name 4. Units and range 5. Finished psw.en r32 Copyright © 2007-2013 Pico Technology Ltd. All rights reserved.
PicoScope 6 User's Guide 6.5.2.1.1 67 Math Channel Wizard Introduction dialog Location: Math Channels dialog > Create (if you have not ticked the "Don't show me this introduction page again" check box) Purpose: introduces the Math Channel Wizard Copyright © 2007-2013 Pico Technology Ltd. All rights reserved. psw.
68 6.5.2.1.2 Menus Math Channel Wizard Equation dialog Location: Math Channel Wizard Purpose: allows you to enter or edit the equation for a math channel. You can type directly into the equation box, or click the calculator buttons and let the program insert the symbols for you. A red error indicator will appear to the right of the equation box if the equation contains a syntax error.
PicoScope 6 User's Guide 69 Advanced view Clicking the Advanced button reveals more function buttons, including trigonometric functions and logarithms. Maths Channel Wizard Equation dialog, advanced view Advanced buttons Button Equation sqrt() Description Square root ^ Power. Raise x to the power of y. ln() Natural logarithm abs() Absolute value freq() Frequency. Calculated in hertz. norm() Normalise.
70 Menus max() sin() Maximum. Positive peak detect of all previous waveforms. Average. Arithmetic mean of all previous waveforms. Peak detect. Display maximum-to-minimum range of all previous waveforms. Pi. The ratio of a circle's circumference to its diameter. Inverse. Modifies the sin, cos and tan buttons to asin, acos and atan. Sine. The operand is in radians. cos() Cosine. The operand is in radians. tan() Tangent. The operand is in radians. 0..9 0 to 9. The decimal digits. .
PicoScope 6 User's Guide 6.5.2.1.3 71 Math Channel Wizard Name dialog Location: Maths Channel Wizard Purpose: allows you to enter or edit the name and color of a maths channel PicoScope initially sets the name to the text of the equation, but you can edit it to anything you like. The name will appear in the channel list in the Maths Channels dialog. You can set the color of the trace to one of the standard colors in the dropdown-list, or click Custom to choose any possible color allowed by Windows.
72 6.5.2.1.4 Menus Math Channel Wizard Units and Range dialog Location: Maths Channel Wizard Purpose: allows you to specify the measurement units and the range of values to display for a maths channel Units, Long Name: This is for your reference only. Units, Short Name: This will be displayed on the measurement axis in scope and spectrum views, in the ruler legend and in the measurements table.
PicoScope 6 User's Guide 6.5.2.1.5 73 Math Channel Wizard Finished dialog Location: Maths Channel Wizard Purpose: shows you the settings for the maths channel that you have just created or edited Back. Click this button to return to previous dialogs in the Maths Channel Wizard if you wish to change any of the settings. Finish. Click this button to accept the settings shown and return to the Maths Channels dialog.
74 6.5.3 Menus Reference Waveforms dialog Location: Tools > Reference Waveforms Purpose: enables you to create, edit and control reference waveforms, which are stored copies of input channels Reference The main area of the Reference Waveforms dialog is the Waveforms list Reference Waveforms list, which shows all the available input channels and the library and loaded reference waveforms.
PicoScope 6 User's Guide 6.5.3.1 75 Delete Permanently deletes the selected reference waveform. Only reference waveforms in the Library section can be deleted. Duplicate Creates a copy of the selected input channel or reference waveform. The copy is placed in the Library section, from where you can edit it by clicking Edit. A quicker way to do the same thing is to right-click on the view, select Reference Waveforms and then click the channel that you wish to copy. Import Opens a .
76 6.5.4 Menus Serial Decoding dialog Location: Tools > Serial Decoding Purpose: lets you choose which channels to use for serial decoding and set other options The following formats are supported: I²C CAN Bus LIN RS232 (UART) SPI Protocols table This is where you select which channels to decode, and what serial protocol to use for each channel. All the available channels are listed in the Channels column. psw.en r32 Copyright © 2007-2013 Pico Technology Ltd. All rights reserved.
PicoScope 6 User's Guide 77 If the channel you want to use is not listed, enable it first by using the Channels toolbar. For each channel that you want to decode, click in the Protocols column. A dropdown list will appear, containing all the protocols that PicoScope understands. The list may vary depending on which version of PicoScope you are using. For multichannel protocols like I2C and SPI, select the data channel. Any other channels will be specified later. Select the protocol you wish to use.
78 6.5.4.2 Menus Protocol-specific settings CAN Bus settings PicoScope can decode either the CAN H or the CAN L signal. Select which one you are using in the Protocols table. Threshold. A voltage halfway between the high and low logic levels. If you are not sure, set this to halfway between the maximum and minimum voltages that you see on the waveform. Baud Rate. The speed of data transmission in symbols per second. Set this to match the speed of the data bus. I²C settings Clock Channel.
PicoScope 6 User's Guide 6.5.4.3 79 Serial Data window Location: Purpose: Channels toolbar > Serial Decoding button > select In Window in the Serial Decoding dialog shows decoded serial data in alphanumeric format and allows advanced filtering and searching For more information on the format of the table for each serial protocol, see Serial protocols. If you also selected In View in the Serial Decoding dialog, the data will also appear in graphical form on the scope view.
80 psw.en r32 Menus Start from... Use this button to enter a condition that PicoScope will wait for before collecting data. When PicoScope detects a packet that matches this condition, it will collect all subsequent data (subject to filtering, if used - see above) and display it in the table. Filter Click to show the filter bar, which allows you to enter arbitrary data above each column in the table. The table will display only those packets that match the data you have entered.
PicoScope 6 User's Guide 6.5.4.4 81 UART Settings dialog Location: Serial Decoding dialog > RS232/UART format > Bit Definitions Purpose: sets up parameters of your RS232 data format so PicoScope can decode the data Signal Idle State: The state, low or high, of the signal when no data present. Data bits: The number of bits in the word. Parity: The type of error-correction bit, if any, added to each word. Stop bits: The number of extra bits used to indicate the end of a word.
82 6.5.4.5 Menus SPI Settings dialog Location: Serial Decoding dialog > select SPI format > Settings Purpose: sets up parameters of your SPI data format so PicoScope can decode the data Sample Clock on: Which edge of the clock to use. Chip Select State: The polarity of the chip select (CS) signal, if used. Data bits: The number of bits in the word. Choose from the drop-down list or type a number directly into the box.
PicoScope 6 User's Guide 6.5.4.7 83 LIN Settings dialog Location: Serial Decoding dialog > LIN format > Settings Purpose: defines parameters of your LIN Bus data format so that PicoScope can decode the data Signal Idle State: The voltage level that represents the idle state. Checksum: Whether to include the ID data in the checksum (Enhanced method) or not (Classic method). Bit Order: Whether the least-significant or the most-significant bit occurs first.
84 6.5.5 Menus Alarms dialog Location: Tools > Alarms Purpose: gives access to the alarms feature, which specifies actions to be taken on various events Event: Select the event that will trigger the alarm: Capture: when a waveform is captured. If triggering is enabled, this option corresponds to a trigger event. You can therefore use this function to save a file on each trigger event. Buffers Full: when the number of waveforms in the waveform buffer reaches the maximum waveform count.
PicoScope 6 User's Guide 85 Stop Capture: equivalent to pressing the red Stop button. Restart Capture: equivalent to pressing the green Start button. Use only if the Stop Capture action was used earlier in the list. Run Executable: run the specified EXE, COM or BAT program file. You can type the %file% variable after the program name to pass the name of the last file saved as an argument to the program. PicoScope will stop capturing while the program runs, and resume after the program terminates.
86 6.5.6 Menus Masks menu Location: Purpose: 6.5.6.1 psw.en r32 Tools > Masks gives control over Mask Limit Testing Add Masks: Add a mask to the display using the Mask Library dialog. Clear Mask: Remove the mask from the display. Save Mask: Save the displayed mask to disk as a .mask file. Mask Library dialog Location: Purpose: Tools > Masks allows you to create, export and import masks for Mask Limit Testing Channel: Select the channel to which you want to apply the mask.
PicoScope 6 User's Guide 6.5.6.2 87 Editing a mask To edit a mask in Mask Limit Testing mode, right-click on the scope view and select Edit Mask: A mask is made up of one or more shapes called polygons. Click on the polygon you wish to edit. PicoScope will then draw edit handles on the selected mask polygon and display the mask edit box. If you drag any of the handles to edit the polygon, the statistical results will be updated immediately.
88 6.5.6.3 Menus Generate Mask Dialog Location: Purpose: Mask Library dialog > Generate allows you to set parameters for the automatically generated mask. PicoScope will then create a new mask based on the last captured waveform. Name: PicoScope automatically chooses a name for the new mask. You can edit the name in this box. X Offset: The horizontal distance between the waveform and the mask. / This button toggles the offset value between absolute units (SI) and relative units (% of full scale).
PicoScope 6 User's Guide 6.5.7 89 Macro Recorder Location: Tools > Macro Recorder Purpose: records a sequence of commands to be replayed later The Macro Recorder helps when you wish to execute a series of commands repeatedly. It saves all commands to a .psmacro file, which can be modified using an XML editor. Execute in real time: Play back the macro at the same speed as when recorded. Without this option, playback will be as fast as possible. Note: .
90 6.5.8 psw.en r32 Menus Preferences dialog Location: Tools > Preferences Purpose: Allows you to set options for the PicoScope software. Click one of the tabs in the picture below to learn more. Copyright © 2007-2013 Pico Technology Ltd. All rights reserved.
PicoScope 6 User's Guide 6.5.8.1 91 General page Location: Tools > Preferences > General Purpose: contains general controls for PicoScope Reset 'Don't show this again' dialogs Restore any missing dialogs that you asked PicoScope not to show again. Reset preferences Set all preferences back to their default values. Waveform Buffer Maximum Waveforms: This is the maximum number of waveforms that PicoScope will store in the waveform buffer.
92 6.5.8.2 Menus Power management page Location: Tools > Preferences > Power Management Purpose: controls features of the oscilloscope that affect its power consumption Capture Rate This control limits the speed at which PicoScope captures data from the scope device. The other PicoScope settings, the type of scope device and the speed of the computer will all affect whether this limit can actually be reached.
PicoScope 6 User's Guide 6.5.8.3 93 Sampling page Location: Purpose: Tools > Preferences > Sampling controls the sampling behaviour of the oscilloscope Slow Sampling Transition In normal (fast) sampling mode, PicoScope collects enough data to fill the screen and then redraws the whole view at once. This method is suitable for fast timebases, when the screen is redrawn many times each second, but with slow timebases it can cause a unacceptable delay before the data appears on the screen.
94 6.5.8.4 Menus Keyboard page Location: Tools > Preferences > Keyboard Purpose: displays, and allows you to edit, keyboard shortcuts A keyboard shortcut is a combination of keys that can be pressed on the keyboard to activate a PicoScope operation. Keyboard Shortcuts This is a list of PicoScope operations and their associated keyboard shortcuts (if defined). The extent of the list depends on the Show Full Key List option (see below).
PicoScope 6 User's Guide 6.5.8.5 95 Regional & Language page Location: Tools > Preferences > Regional & Language Purpose: lets you select the language and other location-dependent settings for PicoScope's user interface Language Select, from the drop-down box, the language you wish to use for the PicoScope 6 user interface. PicoScope will ask you to restart the program before switching to the new language. Measurement System Select metric or U.S. units. Copyright © 2007-2013 Pico Technology Ltd.
96 6.5.8.6 Menus Printing page Location: Tools > Preferences > Printing Purpose: lets you enter the details that will appear at the bottom of printed output Default Print Settings psw.en r32 When you print a view from the File menu, these details will be added to the bottom of the page. Copyright © 2007-2013 Pico Technology Ltd. All rights reserved.
PicoScope 6 User's Guide 6.5.8.
98 Menus Persistence the three colors to use for each channel in digital color persistence mode. The top color is used for the most frequently hit pixels, the middle and bottom colors for the less and least frequently hit pixels.
PicoScope 6 User's Guide 6.5.8.8 99 Options page Location: Tools > Preferences > Options Purpose: lets you set various options that control the way that PicoScope 6 works Device Startup Settings Remember Last Device. This option is used when PicoScope finds more than one scope device. If the check box is ticked, PicoScope will attempt to use the same device that was used last time. Otherwise it will use the first device available.
100 6.6 Menus Help menu Location: Help Purpose: gives access to the PicoScope 6 User's Guide and related information User's Guide This is the main help manual, containing complete information on the program. Contents, Index and Search are shortcuts to various functions of the help viewer. psw.en r32 Check for Updates Connect to the Pico Technology website and look for a newer version of the PicoScope software. Requires an internet connection.
PicoScope 6 User's Guide 6.7 101 Automotive menu (PicoScope Automotive only) Location: Menu bar > Automotive Purpose: gives access to a database of preset tests Note: This is an example from R6.6.43.4 of the software. The contents of the menu change frequently as new tests are added to our library. 1.Select a preset test. 2.PicoScope opens an information page that explains how to connect the scope, run the test and interpret the results. (A few tests do not have an information page.) 3.
102 6.8 Menus Connect Device dialog Location: File > Connect Device or plug in a new device Purpose: when PicoScope finds more than one available scope device, this dialog allows you to select which one to use See "How to change to a different device" if you wish to switch to a different scope device later. Procedure Wait for a list of devices to appear. This may take a few seconds. Select a device and click OK. PicoScope will open a scope view for the selected scope device.
PicoScope 6 User's Guide 6.9 103 Converting files in Windows Explorer You can convert PicoScope data files to other formats for use in other applications, or to different forms of data for use with PicoScope. The easiest way to do this conversion is through the context menu in Windows Explorer. The context menu is the menu that pops up when you right-click it with the mouse or activate it with the "menu" button on a Windows keyboard.
104 Menus The .psdata files should now appear as in this picture: Converting to other formats For all of these conversions, you can choose either "All waveforms" or "Current waveform". A .psdata file can contain either a single waveform or the entire contents of the waveform buffer, which can hold a number of waveforms from successive trigger events. If the .psdata file contains more than one waveform, then you can choose to convert all of them or just the one that was last viewed in PicoScope.
PicoScope 6 User's Guide 7 105 Toolbars and buttons A toolbar is a collection of buttons and controls with related functions. PicoScope 6 contains the following toolbars: Buffer Navigation toolbar Channel Setup toolbar Measurements toolbar Capture Setup toolbar Start / Stop toolbar Triggering Toolbar Zooming and Scrolling toolbar Signal Generator button Copyright © 2007-2013 Pico Technology Ltd. All rights reserved. psw.
106 7.1 Toolbars and buttons Channels toolbar The Channels toolbar controls the settings for each vertical input channel. The screen shot below shows the toolbar for a two-channel scope device, but different scope devices may have different numbers of channels. (See also PicoLog 1216 toolbar that is used for the PicoLog 1000 Series.) Each channel has its own set of buttons: Channel Options button. Opens the Channel Options menu with options for probes, resolution enhancement, scaling and filtering.
PicoScope 6 User's Guide 7.1.1 107 Channel Options menu The Channel Options menu appears when you click the Channel Options button (for example: ) on the Channels toolbar. Probe list. Indicates the probe currently in use and allows you to select a different one. Use it to tell PicoScope what type of probe is connected to a channel. By default, the probe is assumed to be x1, which means that a one-volt signal at the input to the probe will appear as one volt on the display. Expand probe list.
108 Toolbars and buttons Analog Options. Options that can be applied to the oscilloscope input hardware, if the oscilloscope hardware supports them. DC Offset: an offset voltage added to the analog input before digitization. For availability, see the Device feature table. Bandwidth Limit: a fixed-frequency single-pole analog filter. This can be useful for rejecting noise and harmonics that would otherwise cause aliasing. For availability, see the Device feature table. Lowpass Filtering.
PicoScope 6 User's Guide 109 Quantifying Resolution Enhancement The table below shows the size of the moving-average filter for each resolution enhancement setting. A bigger filter size requires a higher sampling rate to represent a given signal without significant side-effects (as detailed above). Resolution enhancement e (bits) 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 Number of values n 2 4 8 16 32 64 128 256 Example. Your scope device is a PicoScope 5204 (resolution = 8 bits).
110 7.1.1.2 Toolbars and buttons Axis scaling controls The axis scaling controls are control boxes that let you change the scale and offset of each vertical axis individually. If the axis belongs to a reference waveform then you can also adjust its delay relative to the live waveforms.
PicoScope 6 User's Guide 7.1.1.3 111 Lowpass filtering The lowpass filtering feature can reject high frequencies from any selected input channel. The filtering control is found in the Advanced Channel Options dialog, which is opened by clicking the Channel Options button ( ) for the relevant channel on the Channels toolbar. The control determines the cut-off frequency of the filter, which must be below half the sampling rate shown in the Properties sheet. For availability, see the Device feature table.
112 Toolbars and buttons Filter details The lowpass filtering algorithm is chosen according to the ratio of the selected cut-off frequency (fC) to the sampling rate (fS), as follows: fC ÷ fS Filter type Description 0.0 to 0.1 Moving average A moving average filter is used for low cut-off frequencies. The length of the filter is adjusted to achieve the selected cut-off frequency, which is defined as the first minimum in the frequency response.
PicoScope 6 User's Guide 7.1.2 113 Digital Inputs button Location: Channels toolbar (MSOs only) Purpose: controls the settings for the digital inputs of a mixed signal oscilloscope (MSO) Digital on/off. Switches the digital view on or off. If digital inputs are activated in the Digital Setup dialog, they remain active even when hidden from view. Digital setup. Opens the Digital Setup dialog for channel selection and options. 7.1.2.
114 Toolbars and buttons Set Thresholds Choose the digital threshold voltage from the drop-down list, or select the Custom threshold and set your own voltage using the numeric entry control. The preset thresholds are: TTL: CMOS: ECL: PECL: LVPECL: LVCMOS 1.5 V: LVCMOS 1.8 V: LVCMOS 2.5 V: LVCMOS 3.3 V: LVDS: 0V Differential: 1.5 V 2.5 V -1.3 V 3.7 V 2V 750 mV 0.9 V 1.25 V 1.65 V 100 mV 0V Each port has its own independent threshold. Port 0 contains channels D7...D0 and Port 1 contains channels D15...D8.
PicoScope 6 User's Guide 7.2 115 PicoLog 1000 Series Channels toolbar The Channels toolbar controls the settings for each vertical input channel. The toolbar has a different appearance for PicoLog 1000 Series Data Loggers than for PicoScope oscilloscopes (see Channels toolbar for the standard version). Channel control. This control contains two buttons in one rectangular outline.
116 7.2.1 Toolbars and buttons PicoLog 1000 Series Digital Outputs control Location: Purpose: Digital Outputs button on the Channels toolbar controls the data logger's built-in signal generator Digital Outputs dialog for the PicoLog 1216 The range of controls available depends on which model of data logger you have. PWM Output PWM. The PWM output on some devices can be set to generate a pulse-width modulated waveform. This is a logic signal that is toggled with a specified period and duty cycle.
PicoScope 6 User's Guide 7.3 117 USB DrDAQ Channels toolbar The Channels toolbar for the USB DrDAQ controls the settings for each input and output channel: Sound waveform sensor control. The small arrow sets options for the sound waveform input (measured in uncalibrated amplitude units) using the on-board microphone. Click the channel name to toggle the channel on or off. Sound level sensor control.
118 7.3.1 psw.en r32 Toolbars and buttons USB DrDAQ RGB LED control Location: USB DrDAQ Channels toolbar > RGB LED button: Purpose: allows you to set the colour of the on-board LED to any one of 16.7 million colours Enable LED Control: Box checked: you can set the on-board RGB LED to any colour Box clear: the LED has its normal function of flashing to indicate data capture on the input channels Other controls: Experiment with these to see what they do! Copyright © 2007-2013 Pico Technology Ltd.
PicoScope 6 User's Guide 7.3.2 119 USB DrDAQ Digital Outputs control Location: USB DrDAQ Channels toolbar > Digital Outputs button: Purpose: allows you to set the characteristics of the four digital outputs on the screw-terminal block. Each output has its own set of controls: PWM/Out Control: Set to Out: you can set the output to either a fixed logic low (near 0 V) or a fixed logic high (near 3.3 V) Set to PWM: the output is a two-level waveform (alternating between 0 V and 3.
120 7.4 Toolbars and buttons Capture Setup toolbar The Capture Setup toolbar controls the time-related or frequency-related settings of your oscilloscope. Scope Mode In scope mode, the toolbar looks like this: (See below for different versions of the toolbar in spectrum mode and persistence mode.) Scope Mode. Sets up PicoScope to operate as an oscilloscope. Use the Auto Setup button to optimise the settings.
PicoScope 6 User's Guide 121 Samples control. Sets the maximum number of samples that will be captured for each channel. If this is larger than the number of pixels across the scope view, you can zoom in to see more detail. The actual number of samples captured is displayed on the Properties sheet, and may be different from the number requested here, depending on which timebase is selected and which scope device is in use.
122 7.4.1 Toolbars and buttons Spectrum Options dialog This dialog appears when you click the Spectrum Options button in the Capture Setup toolbar. It is available only when a spectrum view is open. It contains controls that determine how PicoScope converts the source waveform in the current scope view to a spectrum view. Spectrum Bins The number of frequency bins into which the spectrum is divided.
PicoScope 6 User's Guide 123 Average: the spectrum view shows a rolling average of spectra calculated from all the waveforms in the waveform buffer. This has the effect of reducing the noise visible in the spectrum view. To clear the averaged data, click Stop and then Start, or change from Average mode to Magnitude mode. Peak Hold: the spectrum view shows a rolling maximum of the spectra calculated from all the waveforms in the buffer.
124 7.4.2 Toolbars and buttons Persistence Options dialog This dialog appears when you click the Persistence Options button in the Capture Setup toolbar. It is available only when persistence mode is selected. It controls the colors and fading algorithm used to distinguish new or frequent data from old or intermittent data in the persistence view. Mode Digital Color. This mode uses a range of colors to indicate the frequency of waveform data.
PicoScope 6 User's Guide 125 Custom Options Line DrawingThe type of line drawn between samples that are adjacent in time. Phosphor Emulation. Joins each pair of sample points with a line whose intensity varies inversely with the slew rate. Constant Density. Joins each pair of sample points with a line of uniform color. Scatter. Draws sample points as unconnected dots. Color Scheme Phosphor. Uses a single hue for each channel, with varying intensity. Color.
126 7.5 Toolbars and buttons Buffer Navigation toolbar The Buffer Navigation toolbar allows you to select a waveform from the waveform buffer. What is the waveform buffer? Depending on the settings you have chosen, PicoScope may store more than one waveform in its waveform buffer. When you click the Start button or change a capture setting, PicoScope clears the buffer and then adds a new waveform to it each time the scope device captures data.
PicoScope 6 User's Guide 7.6 127 Measurements toolbar The Measurements toolbar controls the measurements table. It contains the following buttons: Add Measurement Adds a row to the table, and then opens the Add Measurement dialog. Edit Measurement Opens the Edit Measurement dialog for the currently selected measurement. You can also edit a measurement by double-clicking on a row of the measurements table. Delete Measurement Deletes the currently selected row from the measurements table.
128 7.7 Toolbars and buttons Signal Generator button The Signal Generator button allows you to set up your scope device's test signal generator, if it has one, or the demo signal settings if PicoScope is in demo mode. If your scope has a built-in signal generator then clicking the Signal Generator button opens the Signal Generator dialog. If PicoScope is in demo mode then clicking the Signal Generator button opens the Demo Signals menu. 7.7.
PicoScope 6 User's Guide 7.7.1.1 129 Basic controls Signal generator dialog for the PicoScope 5204 Signal On. Tick this box to enable the signal generator. Signal Type. Select the type of signal to be generated. The list of signal types depends on the capabilities of the scope device. Import. Opens a file selection dialog that allows you to import an arbitrary waveform file. The file will be loaded into the arbitrary waveform generator and the generator switched on.
130 Toolbars and buttons Stop Frequency. In sweep mode, the generator stops increasing the frequency when it reaches the Stop Frequency. Frequency Increment. In sweep mode, the generator increases or decreases the frequency by this amount every Increment Time Interval. Increment Time Interval. In sweep mode, the generator increases or decreases the frequency by Frequency Increment each time this interval ends. psw.en r32 Copyright © 2007-2013 Pico Technology Ltd. All rights reserved.
PicoScope 6 User's Guide 7.7.2 131 Signal Generator dialog (USB DrDAQ) Location: Purpose: Signal Generator button on the USB DrDAQ Channels toolbar controls the USB DrDAQ's built-in signal generator Signal generator dialog for the USB DrDAQ Basic controls Signal On. Tick this box to enable the signal generator. Signal Type. Select the shape of the waveform to be generated. Arbitrary. Opens the Arbitrary Waveform window, allowing you to define your own waveform shape. Frequency.
132 7.7.3 Toolbars and buttons Arbitrary waveform files Some PicoScope PC Oscilloscopes have an arbitrary waveform generator (AWG), which is enabled using the Signal Generator dialog. PicoScope can program the AWG with a standard waveform, such as a sine or square wave, or an arbitrary waveform that you create or import from a text file. A text file for PicoScope 6 is a list of decimal floating-point values, as in this example: 0.0 0.3 0.9 0.6 0.6 0.0 -0.3 0.0 0.0 0.
PicoScope 6 User's Guide 7.7.4 133 Arbitrary Waveform Generator window Location: Signal Generator dialog > Arbitrary Purpose: allows you to import, edit, draw and export arbitrary waveforms to load into your scope's arbitrary waveform generator. You can also import and export the data in CSV format for use in other applications. Once the desired waveform appears in the window, click OK or Apply to start using it. Toolbar buttons Import from channel.
134 Toolbars and buttons Bit stream. Draws a sequence of bits according to binary or hex data that you specify. The logic high and low levels are adjustable. Clear. Deletes the arbitrary waveform. Normalize. Adjusts the waveform vertically so that it occupies the full [-1,+1] range. Undo and Redo. The Undo button reverses the last change made to the arbitrary waveform. The Redo button reverses the last action of the Undo button. Zoom tools.
PicoScope 6 User's Guide 7.7.4.1 135 Import from a Channel dialog Location: Arbitrary Waveform window > Import from a Channel button ( Purpose: allows you to copy captured data from a scope channel to the Arbitrary Waveform window ) Select Channel: You can import the latest waveform from any available channel. Select Samples: By default, the entire capture is imported. This control allows you to specify a subset of the capture, either between specified sample numbers or between rulers.
136 7.7.
PicoScope 6 User's Guide 7.7.6 137 Demo Signals dialog Location: start PicoScope with no scope device plugged in > Connect Device dialog > select "DEMO" device > Signal Generator button ( > select channel Purpose: ) controls one channel of the "demo" signal source, a feature of PicoScope that creates a variety of test signals to simulate a scope device Signal On: Tick this box to enable the demo signal source. Signal type: Select from a list of standard signal types.
138 7.8 Toolbars and buttons Start / Stop toolbar The Start / Stop toolbar allows you to start and stop the scope device. Click anywhere on the toolbar, or press the start/stop key on the keyboard (by default, the space bar), to start or stop sampling. Start icon. Highlighted if the oscilloscope is sampling. Stop icon. Highlighted if the oscilloscope is stopped.
PicoScope 6 User's Guide 7.9 139 Triggering toolbar The Triggering toolbar tells the scope device when to start capturing data. See also: Trigger. Trigger Mode. The list of available modes varies depending on the type of scope device in use. None: PicoScope acquires waveforms repeatedly without waiting for a signal to trigger on. Auto: PicoScope waits for a trigger event before capturing data. If there is no trigger event within a reasonable time, it captures data anyway.
140 Toolbars and buttons Rising Edge. Click to trigger on the rising edge of the waveform. Falling Edge. Click to trigger on the falling edge of the waveform. Trigger Level. Sets the trigger level. You can also set the trigger level by dragging the trigger marker up or down on the screen. Pre-trigger Time (0% to 100%). This parameter controls how much of the waveform appears before the trigger point. It defaults to 50%, which puts the trigger marker in the middle of the screen.
PicoScope 6 User's Guide 7.9.1 141 Advanced Triggering dialog Location: Purpose: Triggering toolbar > Advanced Triggering button ( ) allows you to set up more complex trigger types than simple edgetriggering Advanced trigger types list. This control lists all the available advanced trigger types. Click on the condition you require, and a diagram and description will appear on the right of the dialog.
142 7.9.2 Toolbars and buttons Advanced trigger types The advanced trigger types can be switched on in the Advanced Triggering dialog. For all trigger types except Digital, the first step is to select which signal the scope should use as the trigger; so set Source to either A, B, Ext or AuxIO. These names correspond to the BNC input connectors on the scope device. Then choose one of the trigger types below. Simple Edge.
PicoScope 6 User's Guide 143 First, set the Starting edge to either Rising or Falling according to the polarity of the edges you are interested in. Next, select one of the four Condition options: Greater than triggers when the second edge occurs later than Time 1 after the first edge (useful for detecting missing events). Less than triggers when the second edge occurs earlier than Time 1 after the first edge (useful for detecting timing violations and spurious edges).
144 7.9.2.1 Toolbars and buttons Hysteresis Hysteresis is a feature of the advanced trigger types in PicoScope 6 that reduces false triggering on noisy signals. When hysteresis is enabled, a second trigger threshold voltage is used in addition to the main trigger threshold. The trigger fires only when the signal crosses the two thresholds in the correct order. The first threshold arms the trigger, and the second causes it to fire. An example will help to illustrate how this works.
PicoScope 6 User's Guide 7.9.2.2 145 Digital trigger dialog Location: Purpose: Advanced triggering dialog > Digital and Logic buttons sets up triggering on digital inputs Applicability: MSO devices only Pattern table Lists all available inputs as selected in the Digital Setup dialog. Each one can be monitored for a low or high level or a rising or falling edge, or ignored. Any number of levels can be specified, but no more than one transition (edge).
146 7.9.2.3 Toolbars and buttons Logic trigger dialog Location: Purpose: Advanced triggering dialog > Logic button sets up triggering on a combination of inputs Applicability: all devices with more than one active input Input controls There is a set of controls for each active input of the oscilloscope. The selection of inputs depends on the model of oscilloscope in use.
PicoScope 6 User's Guide 147 Logic control Specifies the Boolean operation used to combine the input trigger conditions. Only inputs with the 'Used' box checked (see above) are included in the trigger logic.
148 7.10 Toolbars and buttons Zooming and Scrolling toolbar The Zooming and Scrolling toolbar allows you to move around a scope view or spectrum view. Each button has a keyboard shortcut, as listed below. Ctrl+S or Esc Normal Selection tool. Restores the pointer to its normal appearance. You can use this pointer to click buttons, drag rulers and operate any other controls in the PicoScope window. Ctrl+D Hand tool.
PicoScope 6 User's Guide 149 7.10.1 Zoom Overview Whenever you zoom in using the Zooming and Scrolling toolbar, the Zoom Overview window should appear*: The Zoom Overview shows the full waveforms on all enabled channels. The rectangle indicates the area that is visible in the current view. You can move around the waveform by dragging the rectangle. You can also adjust the zoom factor by dragging the edges of the rectangle to resize it.
150 8 How to... How to... This chapter explains how to perform some common tasks. Change to a different scope device Use rulers to measure a signal Measure a time difference Move a view How to scale and offset a signal How to set up the spectrum view Find a glitch using persistence mode Set up a Mask Limit Test Save on trigger psw.en r32 Copyright © 2007-2013 Pico Technology Ltd. All rights reserved.
PicoScope 6 User's Guide 8.1 151 How to change to a different device Unplug the old device. Cancel the Check USB cable dialog. Plug in the new device. PicoScope will detect the new device and begin to use it. Copyright © 2007-2013 Pico Technology Ltd. All rights reserved. psw.
152 8.2 How to... How to use rulers to measure a signal Using a single ruler for signal-to-ground measurements Look at the Channels toolbar to find the color code for the channel you wish to measure: Find the ruler handle (the small colored square in the top-left or top-right corner of the scope view or spectrum view) of this color: Drag the ruler handle downwards. A signal ruler (horizontal broken line) will appear across the view. Release the ruler handle when the ruler is where you want it.
PicoScope 6 User's Guide 8.3 153 How to measure a time difference Find the time ruler handle (the small white square in the bottom left corner of the scope view). Drag the ruler handle to the right. A time ruler (vertical broken line) will appear on the scope view. Release the ruler handle when the ruler is at the time you wish to use as the reference. Drag the second white ruler handle to the right until its ruler is at the time to be measured.
154 8.4 How to... How to move a view You can easily drag a view from one viewport to another. This example shows four viewports, which contain scope views called "Scope 1" to "Scope 4". Suppose that you wish to move the "Scope 4" view to the top left viewport. 1. Click on the name tab of the "Scope 4" view and hold the mouse button down. 2. Drag the mouse pointer to the new location next to the name tab of the "Scope 1" view. 3. Release the mouse button, and the view will move to the new location.
PicoScope 6 User's Guide 8.5 155 How to scale and offset a signal PicoScope offers several ways to change the size and position of a signal during or after capture. These methods apply equally to scope views and spectrum views. They do not change the stored data, only the way in which it is displayed. These options are provided in addition to the analog offset capability of some scopes (see Device feature table).
156 How to... Axis scaling and offset Use these tools if Auto-arrange axes (see above) does not give you the results you want. It allows you to position channels individually on the view (unlike the global zooming and scrolling tools, which are applied to all of the channels at the same time). Click the scaling button at the bottom of the axis you wish to modify, and the axis scaling controls will appear.
PicoScope 6 User's Guide 8.6 157 How to set up the spectrum view Creating a spectrum view First, ensure that the trigger mode is not set to ETS, as it is not possible to open a spectrum view in ETS trigger mode. There are three ways to open a spectrum view: Click the Spectrum Mode button in the Capture Setup toolbar. We recommend using this method to get the best spectrum analysis performance from your scope.
158 8.7 How to... How to find a glitch using persistence mode Persistence mode helps you find rare events hidden in otherwise repetitive waveforms. In normal scope mode, such an event may appear on the display for a fraction of a second, too quickly for you to press the space bar to freeze it on the screen. Persistence mode keeps the event on the display for a predetermined time, allowing you to set up the trigger options to capture it more reliably.
PicoScope 6 User's Guide 159 Our original scope view is replaced by a persistence view, as shown below. Immediately, we can see three pulses with different shapes. At this point we have the Saturation control in Persistence Options turned up to maximum to help us spot the various waveforms easily. Copyright © 2007-2013 Pico Technology Ltd. All rights reserved. psw.
160 How to... Now that we have found some glitches, we will turn the Saturation control down to minimum. Click the Persistence options button to open the Persistence Options dialog, and then use the slider to adjust the saturation. The display then appears as below. The waveforms are now darker but have a wider range of colors and shades. The most frequently occurring waveform is shown in red, and is the normal shape of the pulse.
PicoScope 6 User's Guide 161 Persistence mode has done its job. We have found our glitches, and now we want to examine them in more detail. The best way to do this is to switch back to normal scope mode, so that we can use the advanced triggering and automatic measurement functions built in to PicoScope. Click the Scope Mode button. Set up an advanced pulse-width trigger to look for a pulse wider than 60 ns. PicoScope then finds the runt pulse straight away.
162 8.8 How to... How to set up a Mask Limit Test 1. Display a stable waveform in a scope view. Adjust the voltage range and timebase so that the feature of interest fills most of the view. In this example, we are viewing a repetitive pulse as might be found on a data bus. 2. Select the Tools > Masks > Add Masks command. psw.en r32 Copyright © 2007-2013 Pico Technology Ltd. All rights reserved.
PicoScope 6 User's Guide 163 3. You should now be in the Mask Library dialog: Channel A is selected by default. You can change this if you want to apply the mask to a different channel. 4. Click the Generate button to open the Generate Mask dialog: Copyright © 2007-2013 Pico Technology Ltd. All rights reserved. psw.
164 How to... 5. For now, accept the default settings and click Generate. Then click OK in the Mask Library dialog to return to the scope view: You now have a mask drawn around the original waveform. 6. PicoScope stops capturing when you enter the Mask Library dialog, so press the space bar to restart. If any captured waveform fails to fit inside the mask, the offending parts are drawn in a contrasting color. The Measurements table shows the number of failures: 7.
PicoScope 6 User's Guide 8.9 165 How to save on trigger Save-on-trigger is just one of a number of functions that are possible with the Alarms feature. 1. Set up PicoScope to display your waveform, and enable triggering: 2. Select the Tools > Alarms command: Copyright © 2007-2013 Pico Technology Ltd. All rights reserved. psw.
166 How to... 3. You should now be in the Alarms dialog: 4. Set Event to Capture: psw.en r32 Copyright © 2007-2013 Pico Technology Ltd. All rights reserved.
PicoScope 6 User's Guide 167 5. Select the first item in the Actions list, click Edit, and change Action to Save Current Buffer: 6. Click the button to the right of the File box and enter the name and location of the file to save: Copyright © 2007-2013 Pico Technology Ltd. All rights reserved. psw.
168 How to... 7. Ensure that both the Save Current Buffer check box and the Enable Alarm check box are set: 7. Click OK. PicoScope will now save a file on every trigger event. 8. Switch off the alarm when you have finished using it, to avoid creating unwanted files. psw.en r32 Copyright © 2007-2013 Pico Technology Ltd. All rights reserved.
PicoScope 6 User's Guide 9 169 Reference This is where you can find detailed information on the operation of PicoScope. Measurement types Spectrum window functions Serial protocols Trigger timing Command-line syntax Glossary 9.1 Measurement types The Edit Measurement dialog presents a selection of measurements that PicoScope can calculate for the selected view. Copyright © 2007-2013 Pico Technology Ltd. All rights reserved. psw.
170 9.1.1 Reference Scope measurements AC RMS. The root mean square (RMS) value of the waveform minus the DC Average. It is equivalent to a ripple measurement. Cycle Time. PicoScope will attempt to find a repeated pattern in the waveform and measure the duration of one cycle. DC Average. The mean value of the waveform. Duty Cycle. The amount of time that a signal spends above its mean value, expressed as a percentage of the signal period.
PicoScope 6 User's Guide 9.1.2 171 Spectrum measurements To add a spectrum measurement, open a spectrum view and then click the Add Measurement button. You can use these measurements in either scope mode or spectrum mode. Frequency at peak. The frequency at which the peak signal value appears. Amplitude at peak. The amplitude of the peak signal value. Average amplitude at peak. The amplitude of the peak signal value averaged over a number of captures. Total power.
172 Reference Intermodulation Distortion (IMD). A measure of the distortion caused by the nonlinear mixing of two tones. When multiple signals are injected into a device, modulation or nonlinear mixing of these two signals can occur. For input signals at frequencies f1 and f2, the two second-order distortion signals will be found at frequencies: f3 = (f1 + f2) and f4 = (f1 - f2). IMD is expressed as the dB ratio of the RMS sum of the distortion terms to the RMS sum of the two input tones.
PicoScope 6 User's Guide 9.2 173 Signal generator waveform types The list of waveform types available in the Signal Generator dialog varies according to the type of oscilloscope connected.
174 9.3 Reference Spectrum window functions To create a spectrum view, PicoScope captures a block of sampled data over a finite time interval and then uses a Fast Fourier Transform to compute its spectrum. The algorithm assumes a signal level of zero at all times outside the captured time interval. Typically, this assumption causes sharp transitions to zero at either end of the data, and these transitions have an effect on the computed spectrum, creating unwanted artefacts such as ripple and gain errors.
PicoScope 6 User's Guide 9.4 175 Trigger timing (part 1) The pre-trigger time control and post-trigger delay control functions are described individually under "Triggering toolbar", but the interaction between the two controls is also important to understand. Here is a screen shot of a scope view with post-trigger delay enabled: Note 1. The trigger reference point ( ) does not lie on the waveform.
176 9.5 Reference Trigger timing (part 2) "Trigger timing (part 1)" introduced the concepts of pre-trigger delay and the posttrigger delay. This diagram below shows how they are related. The pre-trigger delay positions the scope view in relation to the trigger reference point so that you can choose how much of the waveform should be before the reference point, and how much after it. The post-trigger delay is like the delayed trigger of a conventional oscilloscope.
PicoScope 6 User's Guide 9.6 177 Serial protocols The serial decoding feature of PicoScope understands the following serial protocols. 9.6.1 CAN protocol You can decode CAN Bus data using the serial decoding feature built into PicoScope. About CAN Bus CAN (Controller Area Network) Bus is a serial protocol used in automotive and industrial machinery to allow microcontrollers to communicate with each other. The standard was originally developed in 1983 by Robert Bosch GmbH.
178 Reference R0 Reserved bit R1 Reserved bit, extended frames only DLC Data length code. Indicates the number of bytes of data.
PicoScope 6 User's Guide 9.6.2 179 LIN protocol You can decode LIN data using the serial decoding feature built into PicoScope. About LIN LIN (Local Interconnect Network) is a serial protocol used in automotive electronics to allow microcontrollers to communicate with low-speed peripherals. The standard was defined by the LIN Consortium, a group of five vehicle manufacturers. It uses a single wire pair with a master-slave topology.
180 Reference Checksum A cyclic redundancy check of the data (hexadecimal). Calculated Checksum* The checksum expected by PicoScope. Error Set if PicoScope detects an error. Start Time Value of PicoScope timebase at start of frame. End Time Value of PicoScope timebase at end of frame. Packet Time* The duration of the packet (End Time – Start Time). Min Voltage* Minimum voltage. Max Voltage* Maximum voltage. Voltage Delta* Voltage range of the signal (Max Voltage – Min Voltage).
PicoScope 6 User's Guide 9.6.3 181 I²C protocol You can decode I2C Bus data using the serial decoding feature built into PicoScope. About I2C Bus I2C (Inter-Integrated Circuit) Bus is a serial protocol used mainly in consumer electronics for communications between devices on the same circuit board, and between computers and displays. The standard was originally developed in the 1980s by Philips. It uses two signals: clock (SCL) and data (SDA).
182 9.6.4 Reference RS232/UART protocol You can decode RS232 (UART) data using the serial decoding feature built into PicoScope. About RS232 RS232 is the serial data standard used by UARTs (Universal Asynchronous Receiver/ Transmitters) in the "serial" or "COM" ports once commonly found on computers. It was developed in the 1960s for connecting modems to terminals. The full standard uses a voltage swing of ±12 V, larger than most other standards.
PicoScope 6 User's Guide 9.6.5 183 SPI protocol You can decode SPI Bus data using the serial decoding feature built into PicoScope. About SPI Bus SPI (Serial Peripheral Interface) Bus is a serial data standard used for communication between microprocessors and peripheral devices. It was developed by Motorola. The original standard uses a 4-wire link, although 3-wire and 2-wire versions are also used. The in-window view of the data looks like this: The columns in the data table are as follows: Column No.
184 9.7 Reference Device feature table Some PicoScope 6 features require special hardware and are therefore not available on all devices. Feature availability is indicated in the table below. Please see the relevant device data sheet for more details.
PicoScope 6 User's Guide 9.8 185 Command-line syntax PicoScope can be run from the Windows command line, allowing you to run tasks manually or under the control of a batch file or other program. To display the GUI PicoScope Specifies a single .psdata or .pssettings file. Example: PicoScope C:\Temp\source.psdata To display help PicoScope /? Shows help on all command line options. To convert a psdata file PicoScope /C,/c Converts a psdata file from one format to another.
186 Reference To print a view PicoScope /P,/p Prints a view in the psdata file. Cannot be used with /c[onvert]. Syntax: PicoScope /p[rint] [/b [[:]] | all] [/v ] Specifies a list of one or more directories or .psdata files. Wildcards may be used to specify multiple files. If a directory is specified, all .psdata files within that directory will be specified. This is a mandatory argument. /b [[:]]|all Waveform number n, waveform range n to m or all buffers.
PicoScope 6 User's Guide 9.9 187 Application Error dialog If there is a problem with PicoScope and the program needs to close, the Application Error dialog appears: It would be very helpful to us if you could send us a report of the problem. All you need to do is click the Send Report button, then save the .zip file in a place where you can easily find it again, such as on your desktop. Then, email the ..zip file to us at support@picotech.com and we will do the rest.
188 Reference At this point you can either connect the AC adapter to the DC IN socket on the oscilloscope or choose to use USB power. If you connect the AC adapter, the dialog will automatically close. There are two ways to connect the scope to use USB power: Use the double-headed USB cable supplied to connect to two USB ports on your computer or USB hub. Any powered USB port that meets the USB 2.0 specification is suitable. An unpowered USB hub cannot be used.
PicoScope 6 User's Guide 9.11 189 Glossary AC coupling. In this mode, the scope device rejects very low signal frequencies below about 1 hertz. This allows you to use the full resolution of the scope to measure a.c. signals accurately, ignoring any DC offset. You cannot measure the signal level with respect to ground in this mode. AWG. An arbitrary waveform generator (AWG) is a circuit that can generate a waveform of almost any shape.
190 Reference MSO. Mixed-signal oscilloscope. An instrument that captures and displays analog and digital signals on the same timebase. PC Data Logger. A measuring instrument consisting of a hardware interface and the PicoLog software running on a PC. You can also use the device with the PicoScope software to create a multi-channel voltage input oscilloscope. PC Oscilloscope. A measuring instrument consisting of a scope device and the PicoScope software running on a PC.
PicoScope 6 User's Guide 191 View. A presentation of data from a scope device. A view may be a scope view, an XY view or a spectrum view. Viewport. The views in the PicoScope window are arranged in a grid, and each rectangular area in the grid is called a viewport. Copyright © 2007-2013 Pico Technology Ltd. All rights reserved. psw.
PicoScope 6 User's Guide 193 Index Auxiliary (AUX) I/O Average (statistics) AWG 189 Axis 12, 16, 18, 189 auto-arrange 43 horizontal 12, 16, 18 % %buffer% variable 84 %file% variable 84 %time% variable offset scaling vertical 84 . 155 110, 155 12, 16, 18 Axis scaling Bandwidth limiter Bit Definitions dialog 103, 185 38 81 Bit stream 133 Bring channel to front 110 Buffer Navigation toolbar 126 35 .psmaths files 64, 68, 71 .psreference files 74 .pssettings files 35 .
194 Index Command line syntax Connect Device dialog Contact information Converting data files Copy as image 41 as text USB DrDAQ 185 34, 102 119 Digital Setup dialog 4 Digital trigger dialog 103, 185 Digital view 14 context menu DrDAQ 41 Copyright 3 Coupling control 106 Create New Custom Probe dialog 117 Edge trigger 142 Edit Existing Custom Probe dialog Edit menu 41 Cursors (see Rulers) 22, 23, 24 Custom grid layout dialog 44 Custom Probe Manager 49 Custom Probe wizard 51 Create New Custom P
PicoScope 6 User's Guide 195 G General preferences Generate mask 86 91 Generate Mask dialog 97 Lissajous figures 16 Logic trigger 142 dialog 146 88 Lookup-Table Scaling dialog Glitches, finding 142 Glossary 189 Graticule 12, 16, 18, 189 Lowpass filtering Macro Recorder 89 running from command line 113 H Mains power Hand tool 148 Harmonic control for measurements 47 Help menu 100 Horizontal axis 12, 16, 18 House current 92 Hysteresis 181 78, 82 78 selection dialog Import from a Channe
196 Index options Measurements adding 20, 45, 46 advanced settings 47 115, 116 PicoScope 6 1, 2, 8 how to use 3, 6, 7 main window 11 capture size 91 deleting 20, 45 editing 20, 45 filtering 124 PicoLog 1000 Series Pointer tool tip 20 Polygon 21 87 font size 45 list of types 169 menu 45 Post-trigger delay 175 arrow 17 control 139, 175 scope Power Management preferences 170 spectrum 171 statistics 20 table 20 toolbar 99, 127 colours Menus 33 Metric measurements Min (statistics) 20 97 D
PicoScope 6 User's Guide 197 Reference waveforms delay 110 dialog Minimum 170 Peak to peak 170 49 74 Rise time Library 74 Loaded 74 overview 28 170 Rising rate 170 Scope mode 9 button 120 using in equations 68 Scope view 10, 12 Reset 'Don't show this again' dialogs 91 Resolution control 120 Resolution enhancement 107, 108, 189 Scrolling 155 Selection tool, normal Send channel to back Revolutions per minute Serial decoding 29, 49 data window 79 dialog 76 link file 79 24 RGB LED on USB Dr
198 Index Spectrum options scale 122 runt pulse 142 timing 175 Spectrum view 10, 18 how to set up 157 toolbar 139 window 142 SPI protocol settings Triggering toolbar 183 99 78, 82 Spreadsheet, exporting to 35 Spurious edges, finding 142 Standard deviation 20, 189 Start/Stop toolbar 99, 138 Startup Settings menu State trigger 145 Statistics 20 filtering 47 40 Support 3 Sweep mode 128, 184 Symbols red warning 12 yellow warning 27 System requirements 5 T U U.S.
PicoScope 6 User's Guide 199 X X axis, configuring 43 X-Axis command 16 XNOR logical operator XOR logical operator XY view 16 146 146 Z Zooming undo 155 148 Zoom overview 149 Zooming and Scrolling toolbar Z-ordering 148 110 Copyright © 2007-2013 Pico Technology Ltd. All rights reserved. psw.
PicoScope 6 User's Guide Copyright © 2007-2013 Pico Technology Ltd. All rights reserved. 201 psw.
Pico Technology James House Colmworth Business Park ST. NEOTS Cambridgeshire PE19 8YP United Kingdom Tel: +44 (0) 1480 396 395 Fax: +44 (0) 1480 396 296 www.picotech.com psw.en r32 2013-10-24 Copyright © 2007-2013 Pico Technology Ltd. All rights reserved.
