Joy-it JT-SCOPEMEGA50 Manual
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Joy-it JT-SCOPEMEGA50 Manual

Joy-it JT-SCOPEMEGA50 Manual

Mixed signal oscilloskope usb-pc based
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MIXED SIGNAL OSZILLOSKOP
USB-PC BASED
Joy-IT powered by SIMAC Electronics GmbH - Pascalstr. 8 - 47506 Neukirchen-Vluyn - www.joy-it.net

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Summary of Contents for Joy-it JT-SCOPEMEGA50

  • Page 1 MIXED SIGNAL OSZILLOSKOP USB-PC BASED Joy-IT powered by SIMAC Electronics GmbH - Pascalstr. 8 - 47506 Neukirchen-Vluyn - www.joy-it.net...

  • Page 2: Table Of Contents

    TABLE OF CONTENTS General information Product overview Hardware connections Software installation JoyScope user interface 5.1. Organization of the user interface 5.2. Changing the settings 5.3. Further information 5.4. Various displays 5.5. Setting up devices Oscilloscope Recording mode Analysis mode Exporting data Sampling frequency (analog and digital DAQ mode) Use of multiple devices X/Y Scope...

  • Page 3: General Information

    16-channel logic analyzer. JT-ScopeMega50 includes a function generator that can output commonly used waveforms needed for various electronic design and troubleshooting tasks...

  • Page 4: Hardware Connections

    3. HARDWARE CONNECTIONS View from above • View from the front • • View from behind...
  • Page 5 Logic Analyzer Pinout • Inputs and outputs •...

  • Page 6: Software Installation

    4. SOFTWARE INSTALLATION You can find the installation file for the software on our JT-ScopeMega50 pro- duct page. Follow the instructions on the screen and install the JoyScope software. It is recommended that you uninstall the old version before proceeding with the installation.
  • Page 7 In the package selection window, you can select which program functions you would like to install. Select all packages here. You can now specify the storage location of the software. You can install the software for all users or just the currently logged-in user.
  • Page 8 Your installation overview will now be displayed. Please wait until the setup program has installed all the necessary files on your computer. The installation window keeps you infor- med about the installation of the device driver. up to date.
  • Page 9 A green tick means that the device dri- vers have been successfully installed, and the device is ready for use. Once the installation is complete, you will receive a notification that the JoyScope software and drivers have been successfully installed. You are now ready to continue and discover how to use the installed software.

  • Page 10: Joyscope User Interface

    5. JOYSCOPE USER INTERFACE The JoyScope user interface consists of the following elements: The main menu is divided into various tabs. The function displays open separate windows in the software that can display different ScopeMega functions. You can use the Analyze button to switch between analysis and record- ing modes.

  • Page 11: Organization Of The User Interface

    5.1 Organization of the user interface You can manage your workspace on the Desktop tab in the main menu. You have the option of arranging the windows opened in the workspace as you wish and save this arrangement. In this way, you do not have to rearrange the windows every time you restart the JoyScope application.
  • Page 12 GUI - Setting the frame rate • (The setting of the target frame rate affects the refresh rate of the da- ta on the screen. The higher the value, the faster the refresh rate (if possible). Check version - Check version •...

  • Page 13: Further Information

    You can specify the number of connected devices on the Device instances tab. 5.3 Further information In the About tab, under User manual, you will find our website and un- der About, you will find the copyrights. 5.4 Various displays With the Snap to Grid function, the displays in the application window can be automatically placed in different arrangements.
  • Page 14 You can arrange the displays according to your own ideas at any time. Both the position and the size of the displays in the work area can be customized. The device functions are also shown in the Displays tab.

  • Page 15: Setting Up Devices

    A dynamic layout is also available and can be activated in the settings menu. This layout allows you to position displays outside the application. It should be noted that windows that are opened from the application automatically come to the foreground and therefore overlay all other content on every monitor.
  • Page 16 The following adjustments can be made in the device settings: Setting the channel input range for each channel (A, B) Selection of the channel color Switching between AC and DC (to suppress the DC component) Activation or deactivation of channel B Definition of the sampling frequency Configuration of the signal generator (waveform, amplitude, fre- quency)
  • Page 17 6. OSZILLOSCOPE An oscilloscope is an electronic measuring device that visually displays electrical signals, both alternating and direct current (AC or DC). It dis- plays voltage fluctuations graphically and is ideal for measuring and ana- lyzing rapidly changing electrical signals. In this example, we have connected the output of the analog generator to oscilloscope channel A of the same ScopeMega50 device.
  • Page 18 It may happen that you receive the message “Device not in analog mo- de”. In this case, you must open the JoyScope Mx50 control unit and switch the device to analog mode in DAQ mode.

  • Page 19: Recording Mode

    7. RECORDING MODE A window with the graphical representation of the measured signal o- pens. To enlarge the time base, you can use the magnifying glass sym- bol in the bottom left-hand corner of the oscilloscope display. If several devices are connected, they will be listed in the device settings. Please note that you must increase the number of device instances in the settings menu to be able to manage multiple devices.
  • Page 20 There are two ways to change the voltage range of the input: Left-click on the channel slider in the graphical user interface and drag it, or use the mouse wheel while the mouse is over the slider. Move the mouse over the axis in the diagram and use the mouse wheel.
  • Page 21 Some signals change very quickly. To capture the desired event precisely, you can use the trigger function. This standard function of an oscillosco- pe allows you to intercept the live signal at a specific point in order to analyze it precisely. Simply select the appropriate channel, the trigger mode (automatic loop or single trigger) and the edge of the trigger (rising, falling, or arbitrary).

  • Page 22: Analysis Mode

    8. ANALYSIS MODE When you click Analyze, another control element appears above the waveform with a yellow selection area, known as the analysis overview. This function provides a quick overview of the entire data range in the buffers to facilitate detailed analysis. The data is sorted chronologically, with the oldest information displayed on the left and the most recent on the right.
  • Page 23 You do not have to calculate the amplitude of the signal manually each time by multiplying the Volts/Division formula by the number of graduati- on marks. Instead, you can use two vertical cursors, C1 and C2. These are located in the oscilloscope window and can be moved to the desired po- sition for your measurements by clicking and dragging.
  • Page 24 Tip: If you click with the left mouse button in the data table, you can switch between the calculation of the time difference between two cur- sors and the frequency calculation. In the bottom right-hand corner, you will see the estimated frequency calculation.

  • Page 25: Exporting Data

    9. EXPORTING DATA If required, you can export the measurement data to an external file. Sel- ect the data of interest (channel A, B) and the current diagram or buffer area and then click on the export icon. Supported file formats are: .csv •...

  • Page 26: Use Of Multiple Devices

    Pipe mode: Sampling is slower than the maximum transfer speed of USB 2.0, allowing the device to transfer the sampled data continuously and without interruptions via USB 2.0. Buffer mode: Scanning is faster than the maximum transfer speed of USB 2.0. In this case, the device only transfers a limited amount of data (data images) and there are interruptions between data transfers.

  • Page 27: X/Y Scope

    • And much more • For this example, we need an oscilloscope (JT-ScopeMega50) and two voltage sources. The analog generator is a standard function of the JoyScope oscilloscope. However, since the JoyScope is only a single- channel device, we require two JoyScope devices to measure both volta- ge sources simultaneously.
  • Page 28 You can open the X/Y scope by clicking on X/Y in the Displays tab of the JoyScope software. To be able to track phase differences, both channels must be activated. Switch the signal to channel B in the device settings.
  • Page 29 To make the phase differences visible, you can now open the oscillosco- pe display and activate the trigger function for one of the channels. One of the signals is frozen while the other moves across the display in relati- on to the first signal. Let us now draw some basic Lissajous curves.
  • Page 30 If we change the frequency ratio to 1:2, i.e. 120 Hz on channel A and 60 Hz on channel B, the Lissajous curve rotates by 90°. With larger ratios, we get more twists and more complex shapes, which is due to the changed pha- se relationship between the two signals.
  • Page 31 If there is a phase shift of 90° between the two signals, the X/Y display will draw a circle. This occurs when both signals have the same frequency and are exactly 90° out of phase, representing a harmonic relationship between the two signals. There are many variations of Lissajous curves that are influenced by the way the signals are shaped.

  • Page 32: Spectrum Analyzer

    13. SPECTRUM ANALYZER The spectrum analyzer measures the signal amplitude over a wide fre- quency range and plots a waveform of the signal amplitude (Y-axis) against the frequency range (X-axis). You can use the spectrum analyzer to determine the dominant frequency of a known signal, as well as the amplitude and frequency of unknown or unwanted signals.
  • Page 33 Here is a table showing all the possible combinations for visualizing the signals: Linear Linear Rectangle Logarithmic Linear (0 db) Hanning Linear Normalized Hamming (0 db max) Normalized Flat Top Triangle Blackman Blackman Harris Exponential descending...
  • Page 34 Cursors are available in the frequency analyzer, which you can drag with the mouse to identify the most dominant frequencies. To analyze the exact relationships between cursors C1 and C2, click on the data table. This shows you important information such as the frequency difference and the amplitude values between the two cursors.

  • Page 35: Recorder

    14. RECORDER The Analyze button is limited by the size of the RAM memory installed in your PC on which the measurements are performed. To bypass these RAM limits, you can save the measurements in an external file on your hard disk.
  • Page 36 NOTE: The record button is only visible when the source device is in pipe mode. Recording is not possible in buffer mode. Captured samples can be saved either as a JoyScope recorder file or as a PCM file (pulse code modulated data). PCM files are intended for use in third-party software and cannot be opened in the JoyScope application.
  • Page 37 After recording, you can end it by pressing the Record button again. Only the JoyScope recorder file can be opened in the JoyScope software. To load the file, click on the source and select Open file..Then locate the JoyScope recorder file on your hard disk and open it for further analysis in the software.

  • Page 38: Logic Analyzer

    15. LOGIC ANALYZER The logic analyzer is an electronic measuring instrument that makes it possible to record and display several signals from a digital circuit simul- taneously. With this powerful tool, you can monitor many digital signals in parallel and carry out precise time measurements. time measure- ments.
  • Page 39 In analysis mode, you can use the yellow selector at the top to select a specific area of the recorded data for a more detailed examination. Adjust the size of the yellow selector using the mouse wheel and place it in the desired position.
  • Page 40 There are two tabs on the right-hand side of the logic analyzer display. Under the Measurements tab, you can view values such as Width, Fre- quency, Period and Duty Cycle. These values adjust dynamically as you move the mouse pointer over the diagram. You can then move the mouse pointer over the corresponding part of the rectangular waveform to display additional details.
  • Page 41 The overview and the main display are now updated so that only the channels Port B.1, B.2 and B.3 are visible. Tip: Double-click on the channel name to rename channels.

  • Page 42: I2C Decoder

    15.1 I2C decoder An Inter-Integrated Circuit (I2C) interface simplifies the hardware struc- ture of electronic devices as it only requires two wires: one for clock syn- chronization and one for data transmission. There is one master and se- veral slaves in an I2C bus. Typically, I2C buses operate at frequencies up to 100 kHz, but can reach higher frequencies if required.
  • Page 43 To ensure the quality of the measurements, the sampling rate must be higher than the signal frequency or bus clock rate. As I2C is set to 100 kbit/s as standard (other speeds are also supported), we recommend a sampling rate of 500 kS/s. After about one second, when the buffers are filled, press the Analyze button to switch to analysis.
  • Page 44 The application offers parameters for data (SDA) and clock (SCL) as well as an option to select the number of bits for displaying the slave addres- ses. It also supports a wide range of I2C devices, including SHT20, SHT21, SHT25, STS21, HTUA21A, HTU20D, HTU21D, HTU3800, Si7006, Si7020, Si7021 and Si7013.

  • Page 45: Uart Decoder

    Under View, you can specify the format in which the decoded data is to be displayed. You can choose between HEX, DEC, CHAR, BIN, HEX & CHAR and DEC & CHAR. The measured values can either be displayed in the side window or appear as a hint when you move the mouse pointer over the I2C data.

  • Page 46: Spi Decoder

    15.3 SPI decoder An SPI (Serial Peripheral Interface) decoder analyzes the communication between devices using certain signals: MOSI (Master Out Slave In) trans- mits data from the master to the slave, MISO (Master In Slave Out) sends data from the slave to the master, and SCLK (Serial Clock) takes care of the timing.

  • Page 47: 1-Wire Decoder

    15.4 1-Wire-Decoder A 1-wire decoder interprets data transmitted over a single channel and is designed to communicate with devices that can transmit serial data at low speed, such as temperature sensors. It configures the speed of data transmission (Speed), identifies the connected device and interprets the data according to the device's protocol, including temperature readings in a specific unit (e.g.
  • Page 48 To demonstrate the basic use of the function generator, we have connec- ted two probes to the JoyScope Mx50: the first to the output of the func- tion generator and the second to channel A of the oscilloscope. We connected the signal and ground connections of the two probes together and set the function generator to a frequency of 5 kHz.
  • Page 49 Open the JoyScope Mx50 control GUI by clicking on the icon in the device buttons area of the JoyScope software. The analog generator controls are located on the right-hand side of the JoyScope Mx50 user interface. Here you can set the signal shape (sine, square, triangle, sawtooth), the frequency (up to 12.5 kHz) and the amplitude, which is specified as a percentage of 1.8 Vpp.

  • Page 52: Further Information

    Germany Possibility of return in your area: We will send you a parcel stamp with which you can return the device to us free of charge. Please contact us by email at Service@joy-it.net or by telephone. Information on packaging: If you do not have suitable packaging material or do not wish to use your own, please contact us and we will send you suitable packaging.

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