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PoScope4  

USER MANUAL 

 

 

PoScope4 Version 2.4 

Summary of Contents for PoScope Mega1+

Page 1: ...PoScope4 USER MANUAL PoScope4 Version 2 4 ...

Page 2: ...user interface 17 Organize your desktop 18 Change language settings and displays layout 18 Device displays 22 Mega1 controls 25 OSCILLOSCOPE 27 Zooming in Zooming out Error Bookmark not defined Mega1 sampling frequency analog and digital DAQ mode 38 Using multiple devices in PoScope4 39 X Y SCOPE 40 SPECTRUM ANALYZER 45 RECORDER 49 LOGIC ANALYZER 52 I2C DECODER 56 FUNCTION GENERATOR Only for Mega1...

Page 3: ...POSCOPE4 AND MEGA1 MANUAL 3 www poscope com QUICK START GUIDE STEP 1 DOWNLOAD AND INSTALL SOFTWARE STEP 2 PLUG IN YOUR DEVICE STEP 3 ATTACH PROBE TO YOUR DEVICE STEP 4 START USING YOUR DEVICE ...

Page 4: ...ndle package also contains PoProbe 60 60 MHz probe PoProbe L2 Logic Analyzer DB 25 probe standard USB cable Please note that PoScope Mega1 is powered through USB connection PoScope Mega1 is a PC based measurement device that can measure fast changing electrical signals Compared to a standard oscilloscope it is incredibly small which makes it perfect to carry around In order to use it you will need...

Page 5: ...ce for spectral analysis decipher most known digital communication protocols and even analyze digital circuits with easy to use 16 channel logic analyzer PoScope Mega1 also contains function generator that can output common used waveforms which are needed in various tasks of electronic design repair Our youtube channel provides an access to many tutorials on how to use your device and software Vis...

Page 6: ...POSCOPE4 AND MEGA1 MANUAL 6 www poscope com POSCOPE4 MEASUREMENT PACKAGE PoScope measurement package consists of PoScope hardware Mega1 Mega1 etc PoScope4 software PoScope4 plugin Mega1 Mega1 etc ...

Page 7: ...1 etc Graphical interface of plugin looks like a dashboard of a physical oscilloscope Plugins can support usage of physical devices or virtual software device such as SWAG software analog generator plugin SWAG plugin is a virtual one channel function generator PoScope4 has excellent plugin support and whenever in the future we will design a new device it will be accompanied together with a plugin ...

Page 8: ...POSCOPE4 AND MEGA1 MANUAL 8 www poscope com HARDWARE CONNECTIONS Top view Front view Back view USB PORT LOGIC ANALYZER 1 13 14 25 ...

Page 9: ...POSCOPE4 AND MEGA1 MANUAL 9 www poscope com PINOUT ASSIGNMENT INPUTS AND OUTPUTS ...

Page 10: ...HZ OPERATING SYSTEM MS WINDOWS XP SP3 CONNECTION 1 FREE USB SLOT HARD DISK 50 MB SOFTWARE RECORDER DATA NETWORK WORKING INTERNET CONNECTION SOFTWARE UPDATES DOWNLOAD 1 Go to www poscope com under measuring instruments PoScope Mega1 Downloads you will find 32 bit and 64 bit latest version of PoScope software Download install under Administrator rights ...

Page 11: ...n screen instructions go throught PoScope installation procedure It is advised to close all other programs at this point of the installation 3 It is advised to remove the old version before proceeding if you have one installed Leave the tick in the checkbox ...

Page 12: ...ch program features to install If you don t plan to use other devices in near future you can deselect them by clicking the checkbox next to it You can always install it later if needed 5 You can change the location where the PoScope files get installed If it s ok as suggested just click Next ...

Page 13: ...You can make the shortcut for PoScope available to all users or just to the currently logged Administrator 7 Installation window summarizes the installation settings installation folder shortcut name If everything is OK you re ready to go Click next ...

Page 14: ...COPE4 AND MEGA1 MANUAL 14 www poscope com 8 Please wait until the setup installs all the files to your PC 9 Setup window informs you about the device driver installation No settings needed just click next ...

Page 15: ...ck means that device drivers are installed and the device is ready for use Click finish 11 You are being informed about the successful installation of PoScope software with drivers We are ready to move on learn how to use the installed software Click finish ...

Page 16: ...POSCOPE4 AND MEGA1 MANUAL 16 www poscope com SOFTWARE MANUAL Run PoScope software You will find PoScope shortcut under PoScope folder of your startup menu ...

Page 17: ...ture mode In Capture mode the signal waveform is being captured for analysis purposes In Analyze mode you can perform in depth signal analysis Device plugins are icons of connected devices When we click them device controls open When we click them again the device controls will close Event log is used for system diagnostics In case of device misbehavior open the event viewer copy the events paste ...

Page 18: ... you restart the PoScope 4 application Next time you open PoScope 4 last known configuration will automatically open In desktop tab you can create new desktop configuration open previously saved configurations and save currently set configuration Displays tab contains the following icons Align displays Oscilloscope X Y Scope Frequency analyzer Recorder Logical analyzer Change language settings and...

Page 19: ... Device displays in the frame of main application while the Dynamic layout lets you freely move Device displays even over multiple monitors o Change user interface language English Portugese Slovenian Polish and Dutch are currently available The Language settings allow you to choose the language of the user interface In order to change the language setting application reset is required General tab...

Page 20: ...NUAL 20 www poscope com Fonts are also fully configurable Find the fonts settings under the Settings tab The Fonts dialogue box lets you configure the size of the fonts for each application segment Font size user interface ...

Page 21: ...POSCOPE4 AND MEGA1 MANUAL 21 www poscope com You can set the number of connected devices in the device instances tab Device instances setup ...

Page 22: ...e the PoScope devices Device displays The Align function lets you automatically tile the displays in the working area in following configurations 1 row by 2 columns 2 rows by 2 columns as shown below 1 row by 3 columns 3 rows by 3 columns If none of the above is appropriate for your use you can always tile the displays by yourself as you wish The location and size of the displays in the working ar...

Page 23: ...POSCOPE4 AND MEGA1 MANUAL 23 www poscope com Device displays before using the align function Device displays after using the align function ...

Page 24: ...ilable You can set it in the settings menu The Device layout lets you place Device displays also outside the main application therefore it might come handy when multiple monitors are connected to the workstation Device displays outside the main application in Dynamic mode ...

Page 25: ... open the Mega 1 controls with a click on its icon Button for Mega1 device controls Mega 1 controls will open showing you next settings Volts scale setting for each channel A B AC DC pushbuttons cuts off DC component ON OFF button for channel B when channel B is off pipe mode sampling frequency for channel A is 2 5 times higher Sampling frequency setting Analog generator settings waveform amplitud...

Page 26: ... poscope com PoScope Mega1 Plugin digital mode Poscope Mega1 Plugin analog mode The color of graphic signal representation of each channel is also customizable by clicking the color square next to each channel Waveform color settings ...

Page 27: ... it is appropriate for measuring and analyzing fast changing electric signals For this example we connected the analog generator output to oscilloscope channel A of the same Mega1 device You can do that by using 2 probes Plug them to CH A and OUT and connect the probe s tips and the probe s grounds ANALOG GENERATOR OUTPUT OSCILLOSCOPE INPUT CHANNEL A You can open the oscilloscope by clicking Oscil...

Page 28: ... You might come across the message Device not in analog mode In that case you will have to open the device controls and switch the device back to analog mode in the DAQ section Device not in analog mode Error message Device controls digital mode ...

Page 29: ...com Capture mode A window will open showing graphical representation of a measured signal To expand the timebase find the magnifying glass icons in the bottom left corner of the oscilloscope display Magnifying glass icons for timebase setting ...

Page 30: ... connected they will be listed here Previously you have to set higher number of device instances in the settings menu There are two ways how to change voltage range of input First way to change it by simply left click drag channel knob on control GUI or using mouse scroll wheel with mouse positioned above the knob The second way is to move mouse over the axis on chart and scroll mouse wheel The re...

Page 31: ...resentation shown below Some signals change very fast To catch the desired event you can use triggering Trigger is a standard oscilloscope function that allows you to catch the live signal at some particular point so you can closely analyze it Just choose the correct channel select Mode automatic loops or a single trigger and particular edge of the trigger signal rising falling any ...

Page 32: ...POSCOPE4 AND MEGA1 MANUAL 32 www poscope com When you re done with capturing the signal you can closely examine it Click Analyze in the top right corner of the PoScope4 software Waveform will freeze ...

Page 33: ...s left most and most recent data is right most Yellow selector rectangle on overview represents portion of data to be displayed on main chart for analysis The selector size and position on overview control can be easily modified with few mouse scrolls To resize the yellow selector hover mouse over main chart or overview and use your mouse scroll wheel To move the waveform drag and drop with your l...

Page 34: ...ly calculate the Volts div X number of divisions Just use the 2 vertical cursors available C1 and C2 Find them in your oscilloscope window click drag to desired position Below you will find Data table command It opens small table with current values of voltage amplitude and time difference between C1 and C2 ...

Page 35: ...ed frequency calculation It s an estimation and its accuracy depends on your sampling frequency setting and your signals applied at the inputs If your sampling frequency is too high and signal frequency is too low the estimated calculation might be wrong You can switch between 8 bit and 12 bit mode 8 bit mode results in higher pipe mode sampling frequency but less accurate data compared to 12 bit ...

Page 36: ...POSCOPE4 AND MEGA1 MANUAL 36 www poscope com Oscilloscope 12 bit sampling ...

Page 37: ...ter out data of interest channel A B and current chart selected buffer range and then click Export Supported file types are csv xls html pcm exporting to PCM will create additional txt header file with info available only for oscilloscope and recorder Oscilloscope display in Analyze mode with export settings ...

Page 38: ...d without any interrupts Buffer Mode sampling is faster than USB 2 0 full speed maximum transfer speed Device is transferring limited amount of data data images and there are interrupts between data Pipe Mode Buffer Mode Pipe mode limit is set dynamically depending on resources used fs Sampling frequency Samples second N Count of used channels n is channel B on S size of one sample in bytes bytes ...

Page 39: ...nstances tab and select how many instances of plugin you would like to have next time you run PoScope4 Select appropriate number and restart PoScope4 New buttons will be added to the plugin toolbar Each instance of plugin will detect when device is attached to computer and connect to it Device instances setting Synchronization issue It is possible to connect two or more Mega1 devices to PoScope4 b...

Page 40: ... use this tool in different fields component characteristic I V curves broadcast engineering stereo left right audio amplifiers distortion between in out guitar tuning etc For this example we need 1 oscilloscope Mega1 and 2 voltage sources Analog generator is a standard feature of Mega1 oscilloscope but since it s a single channel we need 2 of Mega1 devices In order to use multiple devices in PoSc...

Page 41: ...s window In order to track phase differences both of the channels have to be active You have to turn on the signal on channel B on the Mega1 device plugin controls One of the channels is not active error message in XY mode Channel B on off button on Mega1 device controls ...

Page 42: ...ne of the channels One of the signals will freeze the other will move across the display in relationship to the first one XY mode with trigger function Now let s draw some basic Lissajous curves If we set ratio of frequencies to 2 1 for instance 20Hz on channel A and 10Hz on channel B we get this figure 8 Lissajous curves figure 8 at frequency ratio 2 1 ...

Page 43: ...io 1 2 When there is 90 phase shift between the two phases on the XY display you will get this circle You might notice that the circle appears to be slightly elliptic because the display isn t exactly square therefore the X and Y scale on the XY display aren t symmetric Lissajous curves circle figure at 90 phase shift There are many different examples of Lissajous curves One of them are drawn by p...

Page 44: ...signals for X Y scope displayed on Oscilloscope Let s add X Y scope and select as a source device with periodic sine waves mentioned before X Y or Channel A Channel B representation would look like on a picture below X Y scope for periodic input signals ...

Page 45: ...oScope4 uses Fast Fourier transformation FFT for a frequency analysis of an electric signal It is a mathematical process that is used to transform a waveform into the components of a signal s frequency Spectrum analyzer can be used for variety of tasks including finding dominant frequency searching for signal interferences characterization of electronic devices benchmark testing detecting unknown ...

Page 46: ...oximately 10 kHz Waveform is being plotted as signal amplitude Y axis vs frequency X axis Clicking Axes gives you additional set of settings to examine frequencies of the input signal Frequency Amplitude Windows linear linear rectangular logarithmic linear 0 dB Hanning normalized linear 0 dB max Hamming normalized Flat top Triangle Blackman Blackman Harris Exponent Down ...

Page 47: ...m In the Frequency analyzer cursors are also available Drag and drop them with your mouse to find out which frequencies are most dominant To view the relationships between C1 and C2 click on the data table Frequency analyzer with data table open ...

Page 48: ...overing your mouse over it and use the scroll wheel to make the yellow square smaller When done you can pan the waveform left and right to make a FFT analysis over selected part of buffer In Analyze mode you can also export the data to various formats of an external file To return to live signal just click on Capture mode button Frequency analyzer in Analyze mode with Overview window ...

Page 49: ...memory you can save measurements to an external file on your disk Therefore the total amount of measuring samples will be limited with the total capacity of your hard drive SSD or USB drive To run the recorder module of PoScope 4 software click the REC icon in the device functions area of PoScope 4 software Standard oscilloscope window opens offering you record button below to start recording ...

Page 50: ... in PoScope4 application Recording to PCM will create additional txt header file with following info number of channels data size per channel bit ordering sampling frequency etc Recorder settings Once recording you can stop it by pressing recording button again The PoScope 4 recorder file can be open in PoScope 4 application Click to the source and select Open file Find and open the PoScope 4 file...

Page 51: ...tch pages and resize the overview selector If you hover over the waveform you can change the timebase using mouse scoller and drag the waveform left and right using you left mouse button Data table and export features are also available as in the oscilloscope display ...

Page 52: ...air analyze timing errors verify timing diagrams observe timing relationships among many signals decode the information on buses view state machine traces With PoScope Mega1 you can simultaneously display capture and analyze up to 16 digital channels varying from 0 to 5V For this example we used our PoKeys I O device PoKeys is a powerful little device with extensive amount of functions You can pro...

Page 53: ...zer by clicking its icon in the Displays tab of PoScope4 software Below you can see an example of displaying digital ports of a PoKeys input output device As in oscilloscope mode you can click Analyze button to closely view the captured data Logic analyzer waveforms ...

Page 54: ...on Resize the yellow selector with scroll wheel and drag it to point of interest Logic analyzer in Analyze mode with Overview window open On the right side of the Logic analyzer display you will find 2 tabs Under measurements you will find width frequency period and duty cycle Values will change as you hover over the diagram Logic analyzer measurements pane ...

Page 55: ...ww poscope com When done you can hover over the part of the certain square waveform to see additional details You can export the data selected in overview window to an external file in various formats Logic analyzer export settings ...

Page 56: ...connect up to 1024 devices Decoding of UART SPI 1 WIRE will be available soon as a free upgrade To see how I2C decoder works you can use our PoKeys controller connect it to PoSensors board and tap into the clock and data lines of i2c bus They can be connected to any input of the logic analyzer port Connecting PoScope Mega1 I2C decoder to PoSensors To decode an I2C bus go to PoScope 4 application W...

Page 57: ...name The second pin is data I2C decoder clock SCL and data SDA lines To add I2C decoder click the button on the I2C pane under Decoders tab The application offers the data SDA and clock SCL parameters and how many bits to show the slave addresses If you name your pins as I2C standard names SCL SDA the decoder settings window will automatically recognize lines and use them for decoding otherwise yo...

Page 58: ...I2C Settings window Under the View you can select how you want the decoded data to be shown HEX DEC CHAR BIN HEX CHAR DEC CHAR are available Measurements can be shown in the side panel or as a hint when you hover the mouse cursor over the I2C data ...

Page 59: ...ou can see The start bit Master read initialization The address master wants to read from The acknowledge bit The transferred data and The stop bit On places where you see little squares there is not enough room for the package description If you hover your mouse over that square hint will show its full description ...

Page 60: ...electrical waveforms over a wide range of frequencies limited to 12 5kHz It can generate sine square triangle and saw showed below Function generator can be used in development test and repair of electronic equipment e g it can be a signal source to test amplifiers Analog generator can be used only when device is set to analog DAQ mode sine square triangle saw ...

Page 61: ...t one to the function generator output and the second one to oscilloscope channel A We connected the signal and the ground connections of the two probes and ran the function generator at 5 kHz ANALOG GENERATOR OUTPUT OSCILLOSCOPE INPUT CHANNEL A Open the PoScope Mega1 plugin by clicking its icon in device buttons area of the PoScope4 software ...

Page 62: ...sides shape of the signal sine square triangle saw and its frequency limited to 12 5 kHz you can also set its amplitude expressed in of 1 8Vpp The waveforms on the oscilloscope display will change according to the shape of selected signal on the analog generator part of the Mega1 controls Function generator sine waveform ...

Page 63: ...POSCOPE4 AND MEGA1 MANUAL 63 www poscope com Function generator square waveform Function generator triangle waveform ...

Page 64: ...POSCOPE4 AND MEGA1 MANUAL 64 www poscope com Function generator saw waveform ...

Page 65: ...nnels Sample rate 200kS s dual channel 12 bit mode 500kS s single channel 12 bit mode 500kS s dual channel 8 bit mode 1MS s single channel 8 bit mode Input voltage 20 V 20 V ADC resolution 12 bits Triggering Rising falling any Advanced functions Waveform record Direct recording to PCM Logic analyzer No of channels 16 channels Input voltage 0 5 0 V Triggering Edge level mask coming soon Decoding I2...

Page 66: ... malfunctioning such as computer interfaces office equipment communications equipment test and measurement equipment audio and visual equipment home electronic appliances machine tools personal electronic equipment and industrial robots 6 Measures such as fail safe function and redundant design should be taken to ensure reliability and safety when PoLabs devices are used for or in connection with ...

Page 67: ...f your noncompliance with applicable laws and regulations 15 Please contact a PoLabs support at support poscope com if you have any questions regarding the information contained in this document or PoLabs products or if you have any other inquiries 16 The licensee agrees to allow access to this software only to persons who have been informed of and agree to abide by these conditions 17 Trademarks ...

Page 68: ...owever the user is responsible for virus checking the software once it is installed Support No software is ever error free but if you are unsatisfied with the performance of this software please contact our technical support staff who will try to fix the problem within a reasonable time Upgrades We provide upgrades free of charge from our web site at www poscope com We reserve the right to charge ...

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