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Cleverscope CS328A Manual

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MANUAL
MANUAL
MANUAL
MANUAL
Oscilloscope
Oscilloscope
Oscilloscope
Oscilloscope
Model CS328A
Model CS328A
Model CS328A
Model CS328A
Separate, freely movable and
•
resizable windows to display the
signal, a zoomed signal view, and
the frequency spectrum of the
signal, and control panel
The zoomed signal view optionally
•
tracks the signal view cursor.
Spectrum Analysis with a variety of
•
conditioning windows and display in
log or linear format.
Each signal window includes a
•
time/amplitude tracer, and two
markers for comparison purposes.
Colours are user definable.
Application CS300 Features
Application CS300 Features
Application CS300 Features
Application CS300 Features
•
•
•
•
•
•
•
www.cleverscope.com
www.cleverscope.com
www.cleverscope.com
www.cleverscope.com
Signal averaging (exponential, block
and peak hold) and low pass filtering.
Signal measurement, including Peak t0
Peak, RMS, DC, pulse width, period and
frequency.
Copy and Paste graphic or data to other
applications.
Save and Open from disk.
User defined units, signal names and
scaling (offset and gain).
Text annotation of each graph.
Web server for remote viewing of LAN
connected unit.

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Summary of Contents for Cleverscope CS328A

  • Page 1 MANUAL MANUAL MANUAL MANUAL Oscilloscope Oscilloscope Oscilloscope Oscilloscope Model CS328A Model CS328A Model CS328A Model CS328A Application CS300 Features Application CS300 Features Application CS300 Features Application CS300 Features Separate, freely movable and Signal averaging (exponential, block • • resizable windows to display the and peak hold) and low pass filtering.
  • Page 2 Cleverscope CS328A User Manual...

  • Page 3: Table Of Contents

    Table of Contents Document Control ................................... 6 OVERVIEW ..........................7 QUICK GETTING STARTED GUIDE..................9 Cleverscope Basics and Probe Compensation ........................9 How to use the Signal Generator ............................. 12 Keyboard Shortcuts ................................13 CLEVERSCOPE NAVIGATION AND CONTROL..............14 Keyboard Shortcuts ................................17 CLEVERSCOPE CONTROL PANEL..................
  • Page 4 Deriving Energy................................. 55 NOTES ............................ 56 SIGNAL GENERATOR CONTROL ..................57 13.1 Signal Generator Simulator ............................. 58 USING THE ETHERNET CLEVERSCOPE................59 14.1 Using Cleverscope on a DHCP network.......................... 59 14.1.1 Other DHCP connection options..........................60 Cleverscope CS328A User Manual...
  • Page 5 14.2 Using Cleverscope on a Fixed IP network........................62 14.2.1 Local Fixed IP network.............................. 62 14.2.2 Remote Fixed IP network ............................67 CLEVERSCOPE SUPPORT ....................68 15.1 Minimum PC Requirements ............................68 15.2 Download and installation of software ..........................68 SPECIFICATION........................

  • Page 6: Document Control

    Update Choose Acquirer and set connection, Sig Gen wave types, Maths processes, screenshots Add info & graph sources, Protocol Decoder and Setup, Trigger Time, Info logging & DDE Add Using the Ethernet Cleverscope section Re-organised sections Add Heading numbering & pictures to protocol section. Small edits. Cleverscope CS328A User Manual...

  • Page 7: Overview

    The Cleverscope CS328 Cleverscope CS328 Cleverscope CS328A A A A is a USB connected PC based mixed signal oscilloscope, spectrum analyser, and signal generator Cleverscope CS328 which brings benefits to the user that are unavailable from traditional stand-alone oscilloscopes. This innovative approach delivers an unbeatable combination of affordability, ease of use and documentation of test results with the simple “Copy”...
  • Page 8 The Cleverscope application is designed to allow the capture, display, storage and analysis of signals on a Windows compatible PC. The CS300 Cleverscope application is shipped on a CD with every unit and may also be obtained over the internet by visiting the www.cleverscope.com...

  • Page 9: Quick Getting Started Guide

    2. Connect a signal to Channel A. You could use the Probe Compensation output, or connect the Signal Generator output from the back of the Cleverscope to Chan A, using the scope probe, and BNC adaptor (in the little plastic bag), if you have the Signal Generator fitted.
  • Page 10 Here is the example signal. Note the trigger lines at 700 mV. 2. The auto-fit buttons ( ) for channel A and B can be used to bring the signal traces into view. Cleverscope will apply the optimum vertical scaling and positioning for the signal data.
  • Page 11 2.1.1.3 Acquire the Compensation Signal Go to the Cleverscope Control Panel Cleverscope Control Panel Cleverscope Control Panel window. Cleverscope Control Panel 1. In the ACQUIRE ACQUIRE ACQUIRE ACQUIRE area, set the Probe Probe Probe Probe attenuation to 2. In the TRIGGER...

  • Page 12: How To Use The Signal Generator

    2.2.1.1 Connect the Signal Generator If the Signal Generator hardware has not been installed in the Cleverscope Acquisition Unit then please install it now following the instructions that came with it. On the Cleverscope Acquisition Unit...

  • Page 13: Keyboard Shortcuts

    The mouse wheel acts as a virtual knob on whatever control was last selected. So if you select the Chan A Contract button, and then use the Mouse Wheel, the wheel acts as a virtual knob on the Channel A Volts/div. Cleverscope CS328A User Manual...

  • Page 14: Cleverscope Navigation And Control

    3 Cleverscope Navigation and Control The Cleverscope application uses a Control Panel Control Panel to setup and control signal acquisition. It uses display windows to show Control Panel Control Panel alternative but simultaneous views of signal and spectrum data. It also has additional windows that control the way the signal...
  • Page 15 Notes Notes Notes Notes accompanying notes can be added Signal Generator Simulator Signal Generator Simulator Signal Generator Simulator Signal Generator Simulator virtual built-in signal generator controls Cleverscope CS328A User Manual...
  • Page 16 Only the Cleverscope Control Panel Cleverscope Control Panel has pull down menus as shown below: Cleverscope Control Panel Cleverscope Control Panel File Menu File Menu File Menu File Menu Settings Menu Settings Menu Settings Menu Settings Menu View Menu View Menu...

  • Page 17: Keyboard Shortcuts

    Keyboard Shortcuts As well as using the mouse to navigate and control Cleverscope there are a number of keyboard shortcuts that can be used to save time and improve ergonomics. These are described below: Movement: Movement: Movement: Movement: move the cursor left and right...

  • Page 18: Cleverscope Control Panel

    4 Cleverscope Control Panel The Cleverscope Control Panel Cleverscope Control Panel contains all of the controls and menu items Cleverscope Control Panel Cleverscope Control Panel for capturing, and saving signal data. Signal Acquiring Use the AQUIRE AQUIRE AQUIRE AQUIRE button controls to start and stop signal...

  • Page 19: Duration, Resolution, N Display And F Sample

    On the Settings Settings Settings menu, click Reset Average Settings Reset Average Reset Average Reset Average (or Ctrl + R) to reset the average to 0. Cleverscope CS328A User Manual...

  • Page 20: Lock Result

    Controls related to signal data storage and display are located in the DISPLAY DISPLAY area. DISPLAY DISPLAY The Cleverscope acquisition unit is able to hold a number of sequential frames so that a history of older frames can be recalled. Following an acquisition the Current Current...

  • Page 21: Method For Displaying Signals

    This method only works with repeating signals. When Waveform avg Waveform avg is selected, waveform averaging is performed in the Cleverscope Waveform avg Waveform avg Acquisition Unit (CAU). The CAU captures multiple frames in quick succession, averages these frames, and transfers the result to the PC.

  • Page 22: Triggering

    Trigger 2 count count times. Trigger 1 Trigger 1 is the main trigger as setup in the TRIGGER TRIGGER area on the Cleverscope Control Pan Cleverscope Control Panel el el el. Trigger 1 Trigger 1 TRIGGER TRIGGER Cleverscope Control Pan...

  • Page 23: Digital Triggering

    Trig is selected as the triggering S S S S ource ource ource ource then Cleverscope will trigger when the digital inputs match the pattern set by the digital input selection box, shown to the right. There are two groupings of inputs:...

  • Page 24: Cursors

    Open Open lets you open APC files (*.apc) containing previously saved Open Cleverscope signal data. It can only be used to open APC files. Text files must be opened using the Open Graph from Text Open Graph from Text Open Graph from Text.
  • Page 25 Open Automatically, Data Only is selected, the file is opened Open Automatically, Data Only Open Automatically, Data Only automatically, but only the data is extracted from the file. None of the Cleverscope settings will be loaded. Click on the Single Single Single Single button to start the auto open.

  • Page 26: Edit Menu

    (for linear, logarithmic or gain/phase graphs). The zero dB reference point for the logarithmic Frequency (spectrum) graph can also be customized. The default 775 mV corresponds to 0dBm into a 600 ohm load. To display dBV change this value to 1. Cleverscope CS328A User Manual...
  • Page 27 0 and 10 volts in 10mV increments. The Cleverscope acquisition unit can store up to 4 million samples of signal data per channel (if you have the 8M upgrade then you can store 8 million samples). These samples can be allocated to a single frame or can be divided among multiple frames.
  • Page 28 Pt. 2 2 2 2 fix this straight line, and therefore define the scaling and offset to ensure that the volts as read in Cleverscope are the same as the actual volts present at the input. For example, if by measurement the acquirer reads 10mV for a real 23 mV signal and 1.2 Volts for a real 1.1 Volt signal, then Pt Pt Pt Pt.
  • Page 29 These discontinuities are called end-point errors and they are common to all Fourier Transform Analysers. Windowing is a mathematical technique used to minimize such end-point errors. The choices of windowing techniques in Cleverscope are: None •...
  • Page 30 The contribution of older frames to the most recently calculated average is never lost however (unless averaging is turned off or reset). Cleverscope CS328A User Manual...
  • Page 31 If you wish to do frequency domain averaging then you should be aware of the difference that Triggered and Auto frame capture has on averaging. If Triggered has been selected, Cleverscope assumes you have a periodic waveform and a good trigger, and averaging will be performed in the time domain, before transforming the resulting average to the frequency domain.
  • Page 32 Display spectrum log frequency Display spectrum log frequency Display spectrum log frequency is selected then the horizontal axis of the Spectrum Graph Spectrum Graph Spectrum Graph Spectrum Graph will be displayed logarithmically as opposed to a linear frequency scale. Cleverscope CS328A User Manual...
  • Page 33 Standard Standard Standard self calibration should be executed if the temperature changes by more than 10°C. Cleverscope includes an internal reference which is used to self calibrate all the analog circuitry within the Cleverscope Acquisition Unit Cleverscope Acquisition Unit Cleverscope Acquisition Unit. Before initiating a Standard...

  • Page 34: View Menu

    Cleverscope Application software. About DDE links About DDE links shows how to link About DDE links About DDE links live data from Cleverscope to other applications such as Microsoft Excel or Access. End User License User License shows your license agreement. User License...

  • Page 35: Scope Graph

    Scope Graph setup also determines how a signal will be captured. The vertical axis setup determines the internal scaling and offset. Cleverscope’s full 10 bit analogue resolution maps onto the chosen minimum and maximum amplitude axis values. The values for Channels A and B are independent of each other.

  • Page 36: Horizontal Axis

    The Fit ( ) button will let Cleverscope decide and apply the optimum position and scaling with respect to time for the Scope Graph. The zero button ( ) repositions the graph so that zero time is in the centre.

  • Page 37: Frame And Trigger Time Stamp

    5.6.1 How Zooming Works Cleverscope keeps all the samples in the acquisition unit. When you zoom the graph, the Cleverscope application requests a new graph view from the acquisition unit. The acquisition unit finds the samples, and returns them, via the USB. The acquisition unit can keep up to 2 or 4 M samples in any one display buffer (for the 4M and 8M models).

  • Page 38: Tracking Graph

    Tracking Graph Tracking Graph Tracking Graph also has an Information Information Information area displaying Information information about the position of the Tracking Graph Tracking Graph tracer, markers, marker Tracking Graph Tracking Graph differences and signal frequency. Cleverscope CS328A User Manual...

  • Page 39: Spectrum Graph

    The I I I I n n n n formation formation formation area displays information about the position of the tracer, formation the markers, the amplitude and frequency differences between the markers and the inverse frequency difference between markers, labelled as time. Cleverscope CS328A User Manual...

  • Page 40: Signal Information

    Averaging on. DDE Links DDE enables Cleverscope to emit DDE (Dynamic Data Exchange) messages to any application that can subscribe to DDE links. These are useful for embedding live data in Excel or Access. Links are updated by default as real format numbers with 8 decimal digits.

  • Page 41: Logging

    To calculate Duty Cycle Duty Cycle Cleverscope assumes that the signal is repetitive. The duty cycle is calculated by taking the time at Duty Cycle...

  • Page 42: Spectrum Information Descriptions

    Graph has one additional control. The XY Source XY Source controls Graph Graph XY Source XY Source the source data from the Scope Scope, Spectrum Spectrum, Track Tracker er er er, or Scope Scope Spectrum Spectrum Track Track Maths Maths Maths Maths graph. Cleverscope CS328A User Manual...

  • Page 43: Protocol Decoder And Setup

    Decoded messages are automatically saved in the .apc file when saved, allowing the captured signal and decoded message to be viewed using the Cleverscope application – useful for sharing via a network, email or later review. If the display width chosen on the Scope Graph...
  • Page 44 If you copy and paste the decoded text into Excel, you get this: The copy includes tab characters, so that the columns line up well. The following pages show example Protocol decode setups, and the resulting decode. Cleverscope CS328A User Manual...

  • Page 45: C Protocol

    Once captured, you can zoom on any symbol. If there is insufficient room, symbols are concatenated: In this example the second message was extended, had repeated start, and ended with a Nack. The whole message is shown in red as a result. Zooming in shows the individual symbol colours and positions: Cleverscope CS328A User Manual...

  • Page 46: Uart Protocol

    The Uart decoder allows you to choose the number of bits, if parity is used, the bit order, and the idle state, in addition to the bit time. A calculator for presetting the bit time with standard Baud rates is included. Otherwise you can just type in the time (as we have here – 10usecs). Cleverscope CS328A User Manual...

  • Page 47: Spi Protocol

    The data line has been connected to both Input 1 and also Chan A. The protocol setup shows that Chan A was used as the Data source: As an analog channel was used, the signal will have been thresholded at the given Analog Threshold (2V). Cleverscope CS328A User Manual...

  • Page 48: Maths

    Returns 1 if the difference between a and b is <8.5, otherwise -1 A:B Phase Returns Phase (in degrees) between c and a A:B Sig Gen Sets the Sig Gen frequency to value given in b Cleverscope CS328A User Manual...
  • Page 49 This example can take a square wave input (or anything else for that matter) and produce a tracking generator, outputting a sine wave of the fundamental frequency. This could be useful for waveform clean up, transfer functions, making a VCO, etc. Cleverscope CS328A User Manual...

  • Page 50: Maths Equations Operators And Functions

    Computes the sine of x divided by x (sin(x)/x), x in radians. sinh Computes the hyperbolic sine of x. sqrt Computes the square root of x. Computes the tangent of x, where x is in radians. tanh Computes the hyperbolic tangent of x. Cleverscope CS328A User Manual...

  • Page 51: Maths Equations Processes

    0 means current display, 1 = Scope Graph, 2 = Spectrum graph, 3= Tracker Graph, 4 = Maths Graph. Where you see A:B, A is replaced by an equation before the colon, and B is replaced by an equation after the colon. Examples: 4*sin(a):i1 2:(a*d)/3 Cleverscope CS328A User Manual...

  • Page 52: Maths Equation Builder Walkthrough

    Because the resistor is in the positive line we need to do differential measurements to see the current. Power Unit under supply test Here is a graph captured from a typical UUT starting up, configured as in the diagram: Cleverscope CS328A User Manual...

  • Page 53: Deriving Differential Voltage

    11.3.2 Deriving Differential Voltage Go to the Cleverscope Control Panel Cleverscope Control Panel Cleverscope Control Panel window. Cleverscope Control Panel 1. On the View View View View menu, click Display Maths Equation Builder Display Maths Equation Builder Display Maths Equation Builder Display Maths Equation Builder to show the equation builder.

  • Page 54: Deriving Power

    A to calculate the power. 2. Click Apply Equations Apply Equations Apply Equations. Apply Equations Go to the Cleverscope Control Panel Cleverscope Control Panel window. Cleverscope Control Panel Cleverscope Control Panel 1. On the Settings...

  • Page 55: Deriving Energy

    Apply E Apply E Apply Equations quations quations quations. Go to the Cleverscope Control Panel Cleverscope Control Panel Cleverscope Control Panel window. Cleverscope Control Panel 1. On the Settings Settings menu, click Analog Names and Units Analog Names and Units.

  • Page 56: Notes

    APC data file. If you click the Send to Notes Send to Notes LED on the protocol Send to Notes Send to Notes display, any decoded protocol messages will be automatically added to notes. Cleverscope CS328A User Manual...

  • Page 57: Signal Generator Control

    Sweep synchronous only the Freq Step Freq Step Freq Step Freq Step is determined by Cleverscope to achieve the highest resolution for a Bode plot. Sweep Synchronous Sweep Synchronous Sweep Synchronous Sweep Synchronous will only step if there are triggered signals being captured.

  • Page 58: Signal Generator Simulator

    13.1 Signal Generator Simulator The Cleverscope signal generator provides built-in software generated signals for both the A and B channels that can be used to demonstrate the capabilities of the Cleverscope application software without requiring a Cleverscope hardware unit. The Cleverscope Signal Generator control window enables you to alter the frequency, amplitude and wave-shape for both channel A and channel B of the internally generated signals.

  • Page 59: Using The Ethernet Cleverscope

    This document provides instructions on using the Cleverscope as part of a DHCP network, or in a fixed IP address network. 14.1 Using Cleverscope on a DHCP network The Cleverscope CAU is set by default to work as part of a DHCP network. When it is plugged into a network, the two lights on the Ethernet connector show status.

  • Page 60: Other Dhcp Connection Options

    Auto Cleverscope Control Panel Cleverscope Control Panel The next time you start up the CAU, and run the Cleverscope application, you do not need to do setup – the CAU will automatically connect. 14.1.1 Other DHCP connection options 14.1.1.1 Connect by IP Address The Cleverscope application can also connect to a particular CAU by IP address.
  • Page 61 Notice that Cleverscope acquirer selected has an IP address of .104. This is the same as the device selected from the list. 3. Click OK OK. From now on, the Cleverscope application will always connect to the Cleverscope with an address of .104.

  • Page 62: Using Cleverscope On A Fixed Ip Network

    For a fixed IP network, for example a CAU plugged directly into a laptop, you need to do a little more work. We will examine two situations: the Cleverscope is plugged into a fixed IP local network; the Cleverscope application is connecting to a remote Cleverscope at some other place.
  • Page 63 Local Area Connection Local Area Connection Local Area Connection, and click Properties Properties Properties Properties as shown on the right: Scroll down until you see Internet Protocol (TCP/IP) Internet Protocol (TCP/IP) Internet Protocol (TCP/IP): Internet Protocol (TCP/IP) Cleverscope CS328A User Manual...
  • Page 64 2. Connect the Cleverscope to the Laptop, and power up. If the CAU was setup for DHCP, it will not find an address, and you need to set it manually. Note the CAU IP address is returned as 0.0.0.0 as there is no DHCP server. Also note that the PC NIC (Network Interface Card) address is 192.168.1.2, which is what you chose above.
  • Page 65 Source Fixed IP address’ 4. In Cleverscope acquirer selected Cleverscope acquirer selected area, type in the fixed IP address you want to give the CAU, and click Set IP address Set IP address. Cleverscope acquirer selected Cleverscope acquirer selected...
  • Page 66 – just to verify that the address and static IP usage are correct. Remember that the subnet (the first three numbers of the IP address) must be the same for the Cleverscope, and the NIC address found (which is the PCs address).

  • Page 67: Remote Fixed Ip Network

    14.2.2 Remote Fixed IP network In this situation, you do not have a Cleverscope – it is located somewhere else, and you want to connect to it over the internet. Your IT people will make a bridge from the CAU to a port on the internet connection point, and give you the address.

  • Page 68: Cleverscope Support

    Auckland 1344 New Zealand 15.1 Minimum PC Requirements The minimum PC requirements to use the Cleverscope CS328A are a Pentium class computer with at least 256 Mbyte of memory, running Windows 2000 or later. 15.2 Download and installation of software You may download a copy of the latest Cleverscope application software from the Cleverscope website at www.cleverscope.com.
  • Page 69 Choose the option of saving the zip file rather than opening it. In this example it has been saved on the desktop. You then unzip the file and you will be presented with a Cleverscope folder containing a number of files. Double click on setup.exe to run the Cleverscope installer...
  • Page 70 The installer will create a Cleverscope folder in your program files folder and save a number of files into it. It will also create a desktop icon and an entry in the programs menu under the windows button. You are then able to run a demonstration version of Cleverscope.

  • Page 71: Specification

    +/- 21.47 secs of the trigger point, with 10 ns resolution. Captured Sample window duration 1 µs – 40 ms with 10ns resolution 40 ms – 42.9 secs with 10 ns - 10 µs resolution. (Lower sample rates are available for smaller capture buffer sizes) Cleverscope CS328A User Manual...

  • Page 72: Trigger

    Peak-Peak Period Frequency Pulse width Duty Cycle Custom units 6 characters Custom signal names 20 characters Custom scaling Scale + offset by defining two (Vin, Vout) points User definable colours Signals, Background, Major Grid, Minor Grid Cleverscope CS328A User Manual...

  • Page 73: Displays

    Custom units can be applied. Window types None, Hanning, Hamming, Blackman-Harris, Flat top, Low Sidelobe Averaging Moving average, block average, peak hold. Averaging method Vector averaging in time domain if triggered. RMS averaging in frequency domain if not triggered. Cleverscope CS328A User Manual...

  • Page 74: Windows Facilities

    Delivers 4 analog, and 16 digital channels. More Digital Channels Plug in digital channel daughter board – 16 inputs Analog Output Plug in arbitrary waveform daughter board – 40 MHz bandwidth, up to 4 MSa sequence. Cleverscope CS328A User Manual...

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