Tektronix MSO2000 series Instruction Manual
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Tektronix MSO2000 series Instruction Manual

Demo 2 board
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MSO/DPO2000, MSO/DPO3000, and MSO/DPO4000 Series Oscilloscope
Demo 2 Board
ZZZ
Instruction Manual
*P071234701*
071-2347-01

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  • Page 1 MSO/DPO2000, MSO/DPO3000, and MSO/DPO4000 Series Oscilloscope Demo 2 Board Instruction Manual *P071234701* 071-2347-01...
  • Page 3 MSO/DPO2000, MSO/DPO3000, and MSO/DPO4000 Series Oscilloscope Demo 2 Board Instruction Manual www.tektronix.com 071-2347-01...
  • Page 4 Copyright © Tektronix. All rights reserved. Licensed software products are owned by Tektronix or its subsidiaries or suppliers, and are protected by national copyright laws and international treaty provisions. Tektronix products are covered by U.S. and foreign patents, issued and pending. Information in this publication supersedes that in all previously published material.

  • Page 5: Table Of Contents

    Table of Contents Table of Contents Getting Started with the MSO/DPO2000, MSO/DPO3000, and MSO/DPO4000 Series Oscilloscopes ....... . . Demo I: Acquiring a Signal.
  • Page 6 Table of Contents Demo XV: Triggering on a Serial Data Pattern (e.g. RS-232) ..............Demo XVI: FilterVu (MSO/DPO2000) .

  • Page 7: Getting Started With The Mso/Dpo2000, Mso/Dpo3000, And Mso/Dpo4000 Series Oscilloscopes

    1.XX, download new firmware and update your oscilloscope using procedures described in your oscilloscope user manual. NOTE. This manual is part of the Tektronix 020-2924-XX Demo 2 board kit. The kit includes a Demo 2 board, this manual, and a USB cable.

  • Page 8: Demo I: Acquiring A Signal

    Getting Started with the MSO/DPO2000, MSO/DPO3000, and MSO/DPO4000 Series Oscilloscopes Demo I: Acquiring a Signal 1. Connect the host side of the USB cable to the USB port on the lower-left corner of the oscilloscope front panel — or to either of the two USB host ports on the rear panel of some models.
  • Page 9 Getting Started with the MSO/DPO2000, MSO/DPO3000, and MSO/DPO4000 Series Oscilloscopes 4. Connect a probe to channel 1, such as the P2221 with the MSO/DPO2000 or the P6139A with the MSO/DPO3000 or MSO/DPO4000. Then connect the ground lead of the probe to a point labeled GND on the Demo 2 board.
  • Page 10 Getting Started with the MSO/DPO2000, MSO/DPO3000, and MSO/DPO4000 Series Oscilloscopes 5. Push Default Setup to put the oscilloscope back to a known starting point. In general, this is a good thing to do any time you are starting a new task. 6.
  • Page 11 Getting Started with the MSO/DPO2000, MSO/DPO3000, and MSO/DPO4000 Series Oscilloscopes Demo 2 Board Instruction Manual...

  • Page 12: Demo Ii: Using Vertical Controls

    Getting Started with the MSO/DPO2000, MSO/DPO3000, and MSO/DPO4000 Series Oscilloscopes Demo II: Using Vertical Controls 1. Turn the front-panel channel 1 Vertical Scale knob in both directions and observe how the display changes. Also, notice the channel 1 readout on the lower left of the display shows the current volts/div setting.
  • Page 13 Getting Started with the MSO/DPO2000, MSO/DPO3000, and MSO/DPO4000 Series Oscilloscopes 3. Push the front-panel channel 2 button to turn on channel 2. Push it again to turn off channel 2. Demo 2 Board Instruction Manual...

  • Page 14: Demo Iii: Using Horizontal Controls

    Getting Started with the MSO/DPO2000, MSO/DPO3000, and MSO/DPO4000 Series Oscilloscopes Demo III: Using Horizontal Controls 1. Turn the front-panel Horizontal Scale knob in both directions and observe the display. Also, notice the horizontal readout indicating the current time/div setting. Set the Horizontal Scale to 200 ns/div.

  • Page 15: Demo Iv: Using Run/Stop Controls

    Getting Started with the MSO/DPO2000, MSO/DPO3000, and MSO/DPO4000 Series Oscilloscopes Demo IV: Using Run/Stop Controls 1. Push the Run/Stop button. This stops acquisitions with the last acquired waveform on the display. 2. Push Single to have the oscilloscope acquire a single waveform and then stop. 3.
  • Page 16 Getting Started with the MSO/DPO2000, MSO/DPO3000, and MSO/DPO4000 Series Oscilloscopes Notice that the oscilloscope loses its stable trigger and the waveform now appears to randomly scroll by. 2. Push the Force Trig button once and notice that the oscilloscope shows a single acquisition for a moment.
  • Page 17 Getting Started with the MSO/DPO2000, MSO/DPO3000, and MSO/DPO4000 Series Oscilloscopes 3. On the MSO/DPO4000, push the Set to 50% button. This automatically sets the trigger level to the midpoint of the signal for a stable trigger. On the MSO/DPO2000 and MSO/DPO3000, push the Level knob.

  • Page 18: Demo Vi: Using Cursors

    Getting Started with the MSO/DPO2000, MSO/DPO3000, and MSO/DPO4000 Series Oscilloscopes Demo VI: Using Cursors 1. Push the front-panel Cursors button. Two vertical bar cursors now appear in the graphic above the graticule. The corresponding cursor readout displays the time of each cursor relative to the trigger and amplitude along with the deltas between the cursors.
  • Page 19 Getting Started with the MSO/DPO2000, MSO/DPO3000, and MSO/DPO4000 Series Oscilloscopes Hint: To move the cursors faster, turn off fine mode by pushing the Fine button, if lit, on the front panel between the two multipurpose knobs. 3. Place one cursor at the midpoint of the first falling edge.

  • Page 20: Demo Vii: Taking Measurements

    Getting Started with the MSO/DPO2000, MSO/DPO3000, and MSO/DPO4000 Series Oscilloscopes 4. Push Cursors two more times to turn them off. Demo VII: Taking Measurements 1. Push the front-panel Measure button. 2. Push the lower-bezel Add Measurement Add Mea- Remove Indicators Bring Configure surement...
  • Page 21 Getting Started with the MSO/DPO2000, MSO/DPO3000, and MSO/DPO4000 Series Oscilloscopes 3. Turn multipurpose knob a to select Frequency. Frequency Push the side-bezel OK Add Measurement button. 4. Turn multipurpose knob a to select Period. Period Push the side-bezel OK Add Measurement button.
  • Page 22 Getting Started with the MSO/DPO2000, MSO/DPO3000, and MSO/DPO4000 Series Oscilloscopes 7. Push the lower-bezel Remove Measurement button. 8. Push the side-bezel Remove All Remove All Measurem- Measurements or Remove All button. 9. Push Menu Off to the lower-right of the display to remove the side menu.

  • Page 23: Demo Viii: Saving A Screen Image

    Getting Started with the MSO/DPO2000, MSO/DPO3000, and MSO/DPO4000 Series Oscilloscopes Demo VIII: Saving a Screen Image 1. Insert a USB flash drive. There is one USB 2.0 Host port on the front. Some oscilloscopes also have one or more ports on the rear of the oscilloscope. 2.
  • Page 24 Getting Started with the MSO/DPO2000, MSO/DPO3000, and MSO/DPO4000 Series Oscilloscopes 3. Push the lower-bezel Save Screen Image button. 4. If needed, use multipurpose knob a to select the drive that you are using. Demo 2 Board Instruction Manual...
  • Page 25 Getting Started with the MSO/DPO2000, MSO/DPO3000, and MSO/DPO4000 Series Oscilloscopes 5. Push the front-panel Select button. This lets you expand or contract your view into the contents of the drive that you are using. Expanded list Contracted list 6. Select the desired file format with the File Format .png side-bezel button.
  • Page 26 Getting Started with the MSO/DPO2000, MSO/DPO3000, and MSO/DPO4000 Series Oscilloscopes 8. To easily save multiple images, push the front-panel Save button. By default, the lower-bezel Assign Save to button is set to Image. Now, whenever you push the front-panel Save button, a screen image with an automatically incremented filename is saved to the storage location you specified.

  • Page 27: Giving Demos Of Advanced Oscilloscope Features

    Giving Demos of Advanced Oscilloscope Features Giving Demos of Advanced Oscilloscope Features This section demonstrates a few features that set the Tektronix MSO/DPO2000, MSO/DPO3000, and MSO/DPO4000 series oscilloscopes apart from other oscilloscopes on the market. Overall Package Large Display: Oscilloscopes are visual tools and, as such, work well with large, bright displays. The MSO/DPO4000 has a 10.4-inch XGA display, the MSO/DPO3000 has a 9-inch XGA, and the MSO/DPO2000 has a 7-inch WQVGA.

  • Page 28: Mso/Dpo4000 Series Performance

    Giving Demos of Advanced Oscilloscope Features 5X Oversampling on All Channels: All MSO/DPO2000, MSO/DPO3000, and MSO/DPO4000 series oscilloscopes offer ≥ 5x over-sampling on all channels with sin(x)/x interpolation standard. This ensures full-single shot bandwidth on all channels. Oscilloscopes with lower sample rates and/or linear interpolation often only offer full single-shot bandwidth on fewer channels. Waveform Labels: These oscilloscopes support adding labels to signals on the display.

  • Page 29: Mso/Dpo3000 Series Performance

    Giving Demos of Advanced Oscilloscope Features 10 M Record Lengths on All Channels. All MSO/DPO4000 series oscilloscopes offer standard 10 M record lengths on all channels. Not only is this more than any other midrange oscilloscope’s standard offerings, it is also more than many offer even with very expensive options.

  • Page 30: Mso/Dpo2000 Series Performance

    Giving Demos of Advanced Oscilloscope Features 5 M Record Lengths on All Channels. All MSO/DPO3000 series oscilloscopes offer standard 5 M record lengths on all channels. MSO/DPO2000 Series Performance DPO2024 & DPO2014 & DPO2012 & Characteristic MSO2024 MSO2014 MSO2012 Bandwidth 200 MHz 100 MHz 100 MHz...

  • Page 31: Wave Inspector Demos

    Giving Demos of Advanced Oscilloscope Features Wave Inspector Demos Background. Digital oscilloscope record lengths have gone from 500 points in the early 1980’s to millions of points today. The MSO/DPO2000, MSO/DPO3000, and MSO/DPO4000 series place emphasis not only on the quantity of record length provided but also on the usability of the data.

  • Page 32: Demo Ix: Setting Up I 2 C Signals

    Giving Demos of Advanced Oscilloscope Features Demo IX: Setting Up I C Signals 1. Connect the ground lead of a probe to a point labeled GND on the Demo 2 board. Connect the probe from channel 1 on the oscilloscope to the I2C CLK test point on the Demo 2 board.
  • Page 33 Giving Demos of Advanced Oscilloscope Features 3. Push the front-panel Default Setup button. 4. Turn the front-panel Trigger Level knob to set the trigger level to approximately 2 V. 5. Push the front-panel channel 2 button to turn on channel 2. Demo 2 Board Instruction Manual...
  • Page 34 Giving Demos of Advanced Oscilloscope Features 6. Turn the front-panel channel 1 and channel 2 Vertical Scale knobs so that both channel 1 and channel 2 are set to 2.0 V/div. 7. Turn the channel 1 and channel 2 Vertical Position knobs to position channel 1 near the top of the graticule and channel 2 near the middle or bottom.
  • Page 35 Giving Demos of Advanced Oscilloscope Features 9. Push the lower-bezel Record Length button (if not already active), and the side-bezel 1M points button. 10. Turn the front-panel Horizontal Scale knob to set the horizontal scale to 20.0 ms/div on the MSO/DPO4000. Set it to 2.0 ms/div on the MSO/DPO2000 and MSO/DPO3000.
  • Page 36 Giving Demos of Advanced Oscilloscope Features You are now looking at the clock (yellow ch1) and data (blue ch2) lines of an I bus. Hint: If the waveforms do not look anything like the display to the right, go back to step 1 and confirm that you connected both probes to the correct pins on the Demo 2 board.

  • Page 37: Demo X: Using The Wave Inspector's Zoom And Pan Functionality

    Giving Demos of Advanced Oscilloscope Features Demo X: Using the Wave Inspector’s Zoom and Pan Functionality This section shows how to use the Wave Inspector’s Zoom-Pan knob to demonstrate zoom and pan functionality. 1. Notice the Wave Inspector portion of the front panel.
  • Page 38 Giving Demos of Advanced Oscilloscope Features The pan-zoom control consists of the following: 2. An outer pan knob. 3. An inner zoom knob. 4. Turn the zoom (inner) knob a few clicks clockwise. The zoom feature should turn on. You are seeing: The entire acquisition in the top window.
  • Page 39 Giving Demos of Advanced Oscilloscope Features 5. Zoom in and out to illustrate how the center knob works. End in a spot where you are zoomed in on a single burst of clocks. Notice that you do not have to turn a horizontal position control many times to move the zoom window to the beginning of the acquisition, nor do you have to zoom way back out so you could move the window quickly, and then zoom back in when you arrived at the new location.
  • Page 40 Giving Demos of Advanced Oscilloscope Features 7. If you do not want to hold the pan knob while looking through the waveform, use the play/pause feature. Pressing the play/pause button will cause the oscilloscope to scroll the waveform automatically for you. To show this, push the play/pause button.
  • Page 41 Giving Demos of Advanced Oscilloscope Features 8. When you have found something in the waveform that you are interested in, mark it for further reference. To do this, push the Set/Clear button on the front panel to place a mark. Notice the solid white triangle that appears on the display.
  • Page 42 Giving Demos of Advanced Oscilloscope Features 9. Use the pan (outer) knob to quickly move to a few other interesting points in the waveform and place marks on them. 10. Use the front-panel ← (previous) and → (next) arrow buttons (arrows around Set/Clear) to navigate back and forth between marks instantly.

  • Page 43: Demo Xi: Using The Wave Inspector's Search Functionality

    Giving Demos of Advanced Oscilloscope Features 11. Push the Set/Clear button to remove a mark from the waveform. The zoom, pan, play/pause, setting/clearing/navigating of marks are all very useful features for manually navigating and inspecting the waveform. NOTE. To remove a mark with Set/Clear, first center the zoom box on the mark, either with the →...
  • Page 44 Giving Demos of Advanced Oscilloscope Features 2. Push the lower-bezel Search button. Search Search Source Polarity Set mark Threshold Type When Positive 2.00 V Pulse < 5.00 us Width 3. Push the side-bezel Search button to select Search On| Off 4.
  • Page 45 Giving Demos of Advanced Oscilloscope Features 6. Push the lower-bezel Source button and turn multipurpose knob a to select 2 from the list of channels on the screen. 7. Confirm the polarity is positive. The lower-bezel Polarity button should include the word Positive below it. If not, push Polarity and then the side-bezel Positive button.
  • Page 46 Giving Demos of Advanced Oscilloscope Features 10. Using the multipurpose knob a on the MSO/DPO4000 or MSO/DPO3000 or b on the MSO/DPO2000, change the pulse width to around 2 μs. This is where you should begin seeing marks. Hint: To get to 2 μs faster, first push the front-panel Fine button, if lit, to turn off the Fine function.
  • Page 47 Giving Demos of Advanced Oscilloscope Features 12. Jump from mark to mark using the front-panel ← (previous) and → (next) arrow buttons. 13. Turn the zoom (inner) knob, if needed, to zoom in to give you a good view of each pulse that met the criteria.

  • Page 48: Demo Xii: Using Serial Triggering And Analysis

    Giving Demos of Advanced Oscilloscope Features 15. Push Menu Off to the right of the display to remove the side menu. Push it again to remove the lower-bezel menu. Demo XII: Using Serial Triggering and Analysis This demo shows a much easier and more efficient way to analyze your serial buses. NOTE.
  • Page 49 Giving Demos of Advanced Oscilloscope Features 2. Pan the zoom window, as needed. Notice how easy it is to set up a bus on the your oscilloscope while you do steps 3 through 9. 3. Push the B1 button. Demo 2 Board Instruction Manual...
  • Page 50 Giving Demos of Advanced Oscilloscope Features 4. Push the lower-bezel Bus button and turn Bus B1 Define Thresholds Include B1 Label Bus Display Event Table Inputs R/W in knob a to scroll through a list of buses that the address oscilloscope supports, such as Parallel, I2C, SPI, CAN, and RS-232.
  • Page 51 Giving Demos of Advanced Oscilloscope Features 8. Turn multipurpose knobs a and b to set the SCLK 1 Threshold thresholds at about the midpoint of each a 2.40 V waveform. SDA 2 Threshold b 2.40 V 9. Push the front-panel Menu Off button once to remove the side menu.
  • Page 52 Giving Demos of Advanced Oscilloscope Features 10. Using the pan/zoom controls, zoom in on the different parts of the bus display. Notice what the oscilloscope is showing: Start of packet, as indicated by a green vertical bar. Address. The yellow box shows the address.
  • Page 53 Giving Demos of Advanced Oscilloscope Features 12. Select Binary from the side-bezel menu to show that you can decode into either Hex or Binary. Switch back to Hex, as it is easier to Binary view. Binary 13. Push the lower-bezel Event Table button. Demo 2 Board Instruction Manual...
  • Page 54 Giving Demos of Advanced Oscilloscope Features 14. Push the side-bezel menu Event Table button to select On. The event table: Is similar to a state listing window in a logic analyzer display, Allows you to easily view the contents of every packet captured in the acquisition to trace system activity, Includes timestamps for each packet.
  • Page 55 Giving Demos of Advanced Oscilloscope Features 16. There is more to the Tektronix serial solution than just decoding and viewing bus waveforms. There is also triggering and searching. Push the front-panel Trigger Menu button. Demo 2 Board Instruction Manual...
  • Page 56 Giving Demos of Advanced Oscilloscope Features 17. Push the lower-bezel Type button and turn Type Source Bus Trigger On Address Direction Mode B1 (I2C) Address Write Normal multipurpose knob a to select Bus. & Holdoff 18. Push the lower-bezel Source Bus button and the appropriate side menu button to select the specific bus.
  • Page 57 Giving Demos of Advanced Oscilloscope Features 20. Turn multipurpose knob a to select Address. 21. Push the lower-bezel Address button. 22. The side-bezel Address button should already Address be selected. 23. Turn multipurpose knobs a and b to enter a hex address of 50.
  • Page 58 Giving Demos of Advanced Oscilloscope Features 25. Select the side-bezel Write button. Direction Read Write Read or Write 26. Push Single to make an acquisition. Demo 2 Board Instruction Manual...
  • Page 59 Giving Demos of Advanced Oscilloscope Features 27. Turn the zoom (inner) knob to a zoom factor of 100 – 1,000, if needed, so that you can read the bus address values found. 28. Turn the pan (outer) knob to move the zoom box (the gray bars at the at the top of the screen) to the trigger position icon (the T on an orange background) to reveal what you have...
  • Page 60 Giving Demos of Advanced Oscilloscope Features The waveform found illustrates that you have triggered on what you specified. NOTE. The trigger occurs after all the bits that constitute the search value have gone by. Demo 2 Board Instruction Manual...

  • Page 61: Demo Xiii: Searching Serial Signals

    Giving Demos of Advanced Oscilloscope Features Demo XIII: Searching Serial Signals This demo shows how to search on serial bus signals. 1. Push the front-panel Trigger Menu button, if not already active. Push the lower-bezel Type button and turn multipurpose knob a to select Edge.
  • Page 62 Giving Demos of Advanced Oscilloscope Features 4. Push the lower-bezel Search button if the Search Search Source Bus Search For Type B1 (I2C) Start side-menu is not already displayed. 5. Push the side-bezel Search button to select 6. Push the lower-bezel Search Type button and turn multipurpose knob a to select Bus from a list of choices.
  • Page 63 Giving Demos of Advanced Oscilloscope Features 9. Use the front-panel ← (previous) and → (next) arrow buttons to jump from one mark to the next. This shows how easy it is to move from packet to packet. 10. Push the lower-bezel Search For button (if it is not already active) and select Address with multipurpose knob a.
  • Page 64 Giving Demos of Advanced Oscilloscope Features 12. Turn multipurpose knobs a and b to enter a hex address of 00. Notice that there are fewer results now. Again jump around using the front-panel ← (previous) and → (next) arrow buttons. 13.

  • Page 65: Demo Xiv: Monitoring And Decoding Rs-232 Signals

    Giving Demos of Advanced Oscilloscope Features 14. Notice that Search and Trigger capabilities are very similar. Triggering is used while running to obtain a stable display and to ensure that the event you are looking for is in the acquisition when you push the front-panel Run/Stop button.
  • Page 66 Giving Demos of Advanced Oscilloscope Features 1. Attach a probe to channel 1. Then attach it to the Demo 2 board’s GND point and RS-232_TX signal. Demo 2 Board Instruction Manual...
  • Page 67 Giving Demos of Advanced Oscilloscope Features 2. Push Default Setup. 3. Push Autoset. 4. Push Acquire. Record 5. Push the lower-bezel menu Record Length Mode Reset Waveform Horizontal Display Length button (if not already active) and the side-bezel Sample Position menu 1M points button.
  • Page 68 Giving Demos of Advanced Oscilloscope Features 6. Turn the Horizontal Scale knob to select a time per division setting of 20 ms. 7. Push B1. 8. Push the lower-bezel Bus button. Thresholds B1 Label Event Table Define Configure Bus Display Inputs RS-232 9600–8–N...
  • Page 69 Giving Demos of Advanced Oscilloscope Features 9. Turn multipurpose knob a to select RS-232. NOTE. If you do not see the RS-232 choice, check that you have a properly installed the appropriate DPO2COMP, DPO3COMP, or DPO4COMP application module in your oscilloscope. 10.
  • Page 70 Giving Demos of Advanced Oscilloscope Features 13. Push Single. 14. Turn the zoom (inner) knob of the Wave Inspector to zoom in on the decoded bus display until you can read the ASCII characters (e.g. 10 X). Notice that each box contains a character. Demo 2 Board Instruction Manual...
  • Page 71 Giving Demos of Advanced Oscilloscope Features 15. Push the Wave Inspector play button to have the oscilloscope scroll through the message so you can see what it says. Push the play button again to stop the scrolling. 16. Turn off zoom by pressing the front-panel zoom button.
  • Page 72 Giving Demos of Advanced Oscilloscope Features 17. Push the lower-bezel Event Table. Event Table 18. Push the side-bezel Event Table button to Event Table select On. On| Off The event table presents information in an alternative way to the graphical bus waveform display.

  • Page 73: Demo Xv: Triggering On A Serial Data Pattern (E.g. Rs-232)

    Giving Demos of Advanced Oscilloscope Features 20. Push the lower-bezel Configure button. Push the side-bezel Packets button to On. Then push Menu Off once to remove the side menu. Notice that the messages are all contained in packets for easier reading of the ASCII data. Demo XV: Triggering on a Serial Data Pattern (e.g.
  • Page 74 Giving Demos of Advanced Oscilloscope Features 2. Push the lower-bezel Type button and select Type Trigger On Data Source Bus Mode Tx Data Normal Bus with multipurpose knob a. B1 RS-232 & Holdoff 3. Push the lower-bezel Trigger On button and use multipurpose knob a to select Tx Data.
  • Page 75 Giving Demos of Advanced Oscilloscope Features The oscilloscope should now trigger on the letter T (Hex 54). You should see the word “Tektronix” on the display. Demo 2 Board Instruction Manual...

  • Page 76: Demo Xvi: Filtervu (Mso/Dpo2000)

    Giving Demos of Advanced Oscilloscope Features Demo XVI: FilterVu (MSO/DPO2000) This demo covers the FilterVu feature of the MSO2000 and DPO2000. FilterVu provides a variable low-pass filter, allowing you to take unwanted noise out of your signal while still capturing high-frequency events such as narrow glitches. It does this by showing two waveforms, a foreground waveform that you can filter and a background, glitch-capture, min-max sampled waveform.
  • Page 77 Giving Demos of Advanced Oscilloscope Features 1. Attach a P2221 probe to channel 1 on the MSO/DPO2000 oscilloscope. Then attach the probe to one of the GND points and to the Noisy Sine signal on the Demo 2 board. Demo 2 Board Instruction Manual...
  • Page 78 Giving Demos of Advanced Oscilloscope Features 2. Push Default Setup. 3. Turn the Horizontal Scale to 10 mS/div. Demo 2 Board Instruction Manual...
  • Page 79 Giving Demos of Advanced Oscilloscope Features 4. Turn the vertical Scale knob to 500 mV/div. 5. Adjust the vertical Position knob to center the waveform on the screen. 6. Turn the Trigger Level knob to 1.3 V. Demo 2 Board Instruction Manual...
  • Page 80 Giving Demos of Advanced Oscilloscope Features You may occasionally notice the waveform bouncing around on the display, seeming to not trigger. Because the waveform that you are looking at has high frequency noise on it, use high frequency reject triggering to have the trigger ignore the noise and obtain a stable waveform.
  • Page 81 Giving Demos of Advanced Oscilloscope Features 8. Press the Coupling bottom-bezel button. Coupling Type Source Slope Level Mode Edge HFReject 1.3 V Auto & Holdoff 9. Press the HF Reject side-bezel button. HF Reject Demo 2 Board Instruction Manual...
  • Page 82 Giving Demos of Advanced Oscilloscope Features The waveform is now stable in the display. This signal represents the output of a DAC. Different voltage levels connected together form the displayed sine waveform. This waveform has noise on it, included glitches that you may see come and go randomly.
  • Page 83 Giving Demos of Advanced Oscilloscope Features The low-pass noise filter frequency is initially Noise Fil- ter (Fore- set to 200 MHz, as shown on the side-bezel ground) menu. a 200 MHz Glitch Cap- ture Back- ground On Off Back- ground In- tensity b30% 11.
  • Page 84 Giving Demos of Advanced Oscilloscope Features When you change the filter setting, the oscilloscope brightens the amber background trace and shows the random glitches that also occur on the trace along with the noise signature on the waveform. The background trace contains the peak detect information, including transients.

  • Page 85: Giving Demos Of Mso Features

    Giving Demos of MSO Features Giving Demos of MSO Features The MSO2000, MSO3000, and MSO4000 Series Mixed Signal Oscilloscopes capture and display multiple digital and analog signals. Ease of Use Wave Inspector extended to support digital channels: The MSO models enhance the Wave Inspector to work with its digital channels.
  • Page 86 Giving Demos of MSO Features MagniVu (MSO4000/MSO3000): MagniVu provides timing resolution down to 60.6 ps (MSO4000)/121.2 ps (MSO3000) for 10,000 samples. The maximum MagniVu sample rate is 16.5 GS/s and the record length is 10,000 points centered on the trigger. The main acquisition has a sample rate of 500 MS/s and a record length of up to 10M points. MagniVu is acquired every acquisition.

  • Page 87: Tour The Mso Front Panel

    Giving Demos of MSO Features The MSO models provide parallel bus support. The DPO models do not provide parallel bus support. All DPO4XXX application modules work with both MSO4000 and DPO4000 models. All DPO3XXX application modules work with both MSO3000 and DPO3000 models. All DPO2XXX application modules work with both MSO2000 and DPO2000 models. Tour the MSO Front Panel D15-D0 button: Display or remove digital channels from the display, and access the digital channel setup menu Bus buttons: Define and display up to four different serial and parallel buses at a time with the MSO4000, and two buses...

  • Page 88: Demo Xvii: Setting Up Digital Channels (Mso2000, Mso3000, And Mso4000 Models)

    Giving Demos of MSO Features The demo procedures in the sections that follow cover key points of the MSO Mixed Signal Oscilloscopes. Demo XVII: Setting up Digital Channels (MSO2000, MSO3000, and MSO4000 Models) 1. Connect the appropriate Digital Probe from the oscilloscope front panel to the counter pins on the Demo 2 board.
  • Page 89 Giving Demos of MSO Features For the MSO4000 and the P6516 digital probe, remember to properly ground each probe pin using the flush mount adapter. For the MSO2000/MSO3000 and the P6316, simply plug the 16-connector pod into the corresponding 16-pin array on the Demo 2 board.
  • Page 90 Giving Demos of MSO Features 2. Push Default Setup. 3. Push the front-panel channel 1 button as many times as needed (e.g. two times) to remove the channel 1 waveform from the display. 4. Turn the front-panel Horizontal Scale knob to set the time/division to 200 ns/div.
  • Page 91 Giving Demos of MSO Features Notice the green and blue colors of the horizontal portions of the digital channel waveform. The green indicates the signal is at a logic high level and the blue indicates it is at a logic low level. NOTE.
  • Page 92 Giving Demos of MSO Features 8. Push the side-bezel Turn On D7-D0 button to turn on the display of channels D0 through D7. Alternatively, you could turn on those channels individually, as shown in steps 9 through 11. 9. Turn multipurpose knob a to highlight D1. 10.
  • Page 93 Giving Demos of MSO Features 15. Push Menu Off to remove the side menu. You should now see all seven counter data signals and the counter clock. Notice the upside down triangle on the left side of the display, above the channel 7 marker. This is the channel’s group marker.
  • Page 94 Giving Demos of MSO Features 16. Positioning a group of signals on the screen is easy. To demonstrate this, push the front-panel D15-D0 button, turn multipurpose knob a and notice that the oscilloscope highlights each left-side channel marker in turn. As you continue to turn knob a after the display highlights the D7 base line indicator and then the right-side D7-D0 channel...

  • Page 95: Demo Xviii: Discovering Per-Channel Thresholds (Mso4000 Only)

    Giving Demos of MSO Features To move individual channels, just turn multipurpose knob a to highlight the single desired channel and move that channel by turning knob b. If the individual channel is no longer adjacent to the other channels, it is no longer a member of their group.
  • Page 96 Giving Demos of MSO Features 1. Push the front-panel D15-D0 button, if the lower-bezel D15-D0 menu is not already displayed. 2. Push the lower-bezel Thresholds menu D15-D0 Edit Labels MagniVu Height Thresholds On/Off button. On | S | M| L Notice that you can set each channel’s threshold voltage, individually (MSO4000 only) or as a group, with multipurpose knobs a and...

  • Page 97: Demo Xix: Labeling Channels (Mso2000, Mso3000, And Mso4000 Models)

    Giving Demos of MSO Features Demo XIX: Labeling Channels (MSO2000, MSO3000, and MSO4000 Models) You can add custom labels to each digital waveform. As the number of signals on the oscilloscope display increases, it becomes more and more helpful to attach labels to each signal. NOTE.
  • Page 98 Giving Demos of MSO Features 2. Push the lower-bezel Edit Labels menu D15-D0 Thresholds Edit Labels MagniVu Height button. On/Off |Off S |M| L 3. Use the keyboard to add labels for channels D0 through D6. Call them Count 0, Count 1, Count 2, Count 3, Count 4, Count 5, and Count 6.

  • Page 99: Demo Xx: Exploring Parallel Buses (Mso2000, Mso3000, And Mso4000 Models)

    Demo XX: Exploring Parallel Buses (MSO2000, MSO3000, and MSO4000 Models) All MSO4000, MSO3000, and MSO2000 series oscilloscopes are designed to efficiently analyze parallel buses, such as those used in embedded circuits. The MSO’s bus, triggering, and searching capabilities all support parallel bus analysis.
  • Page 100 Giving Demos of MSO Features 2. Confirm that the selected bus is defined as Define Bus B1 Thresholds B1 Label Bus Display Event Table Inputs Parallel Parallel. Parallel If not, push the lower-bezel Bus button and turn multipurpose knob a to select Parallel. 3.
  • Page 101 Giving Demos of MSO Features 6. Push Menu Off to the lower-right of the display to remove the side menu. 7. Turn knob a to move the parallel bus display above the display of digital channels, so you can more easily read the decoded bus. Observe the decoded bus values on the display.
  • Page 102 Giving Demos of MSO Features Now let’s create a clocked bus. 8. Push Define Inputs from the lower-bezel Bus B1 Define Thresholds B1 Label Bus Display Event Table Inputs menu. Parallel Demo 2 Board Instruction Manual...
  • Page 103 Giving Demos of MSO Features Define Inputs 9. Push the side-bezel Clocked Data button to Clocked Data select Yes. Yes| No 10. Confirm that the side-bezel Clock Edge button Clock Edge is set to the rising edge icon. 11. Confirm that the side-menu Number of Data Number of Data Bits Bits button is still set to 7.
  • Page 104 Giving Demos of MSO Features 14. Take another acquisition by pressing the Single button. Notice that the oscilloscope decodes the bus every time it sees a rising clock edge. 15. Push the lower-bezel Event Table button. Push the side-bezel Event Table button select Notice that each data value in the table is displayed with its associated time stamp.

  • Page 105: Demo Xxi: Triggering On Parallel Bus Data Values (Mso2000, Mso3000, And Mso4000 Models)

    Giving Demos of MSO Features Demo XXI: Triggering on Parallel Bus Data Values (MSO2000, MSO3000, and MSO4000 Models) The MSO4000, MSO3000, and MSO2000 can trigger on specific parallel bus data values. 1. Push the front-panel Trigger Menu button. 2. Push the lower-bezel Type button. Type Source Bus Data...
  • Page 106 Giving Demos of MSO Features 4. Push the lower-bezel Data menu button. 5. Turn multipurpose knobs a and b to enter a value of 7F in Hex (all 1’s in Binary). You are measuring a counter. The oscilloscope will trigger when the counter reaches a state where all channels reach the 1 state (green).
  • Page 107 Giving Demos of MSO Features 7. Push the front-panel Run/Stop button. Notice that the oscilloscope triggers when the 7F (the all 1’s, green) data value you selected above occurs. Triggering on a data pattern is a common request from engineers working on embedded designs.

  • Page 108: Demo Xxii: Searching For Parallel Bus Data Values (Mso2000, Mso3000, And Mso4000 Models)

    Giving Demos of MSO Features Demo XXII: Searching for Parallel Bus Data Values (MSO2000, MSO3000, and MSO4000 Models) The MSO4000, MSO3000, and MSO2000 can search a parallel bus for values that you specify. 1. Push the front-panel Search button. 2. Push the lower-bezel Search button and the Search Search Source Bus...
  • Page 109 Giving Demos of MSO Features 4. Push the lower-bezel Data button. Use the multipurpose a and b knobs to change the data value to 7X. The X value stands for any value and will ensure the search returns as many or more results than did the previous step.

  • Page 110: Demo Xxiii: Zooming In On White Edges (Mso4000 Only)

    Giving Demos of MSO Features Demo XXIII: Zooming in on White Edges (MSO4000 Only) White vertical edges on displayed digital waveforms inform the user that more information is available at that point in the display. You can zoom in on these white edges to see more details. NOTE.
  • Page 111 Giving Demos of MSO Features 1. Attach a P6139A probe to channel 1 on the MSO4000 oscilloscope. Then attach the probe to one of the GND points and to the XTALK 1 signal on the Demo 2 board. 2. Also attach a P6516 digital probe (D0) to the XTALK 1 signal.
  • Page 112 Giving Demos of MSO Features 4. Push Acquire. 5. Push the lower-bezel menu Record Length Mode Reset Waveform Record Length Horizontal Display Sample button (if not already active) and the side-bezel Position menu 1M points button. 6. Push D15-D0. Demo 2 Board Instruction Manual...
  • Page 113 Giving Demos of MSO Features 7. Push Height to select L (large). D15-D0 Thresholds Edit Labels MagniVu Height On/Off |Off 8. Push Autoset. 9. Turn the Horizontal Scale knob to select 1 μs as the time per division. 10. Turn the channel 1 Vertical Position knob to position the analog channel 1 waveform near the middle of the top half of the graticule, if it is not already there.
  • Page 114 Giving Demos of MSO Features 11. Push D15-D0. 12. Turn multipurpose knob b to position the digital channel waveform near the middle of the bottom half of the graticule. 13. Push Thresholds. Confirm that D0 is selected. If not, turn multipurpose knob a to select it. Turn multipurpose knob b to set the threshold to 1.00 V.
  • Page 115 Giving Demos of MSO Features 16. As needed, turn the pan (outer) knob and navigate using the zoom window to bring one of the white edges to center screen. Alternatively, push the play button to do this. 17. Turn the zoom (inner) knob of the Wave Inspector to zoom in on one of the white edges.
  • Page 116 Giving Demos of MSO Features This completes the Tektronix MSO/DPO2000, MSO/DPO3000, and MSO/DPO4000 series demos. Demo 2 Board Instruction Manual...

  • Page 117: Troubleshooting

    Troubleshooting Troubleshooting If your Demo 2 board does not appear to work: Check the power. If the Demo 2 board is receiving power, the power indicator will be lighted. If it is not, try gently pushing in the power cable on the USB Device port.

  • Page 118: Locating Signals

    Locating Signals Locating Signals The diagram includes a grid to help you locate signal pins on connectors and on headers. To find the desired signal on the diagram, look up the grid location in the signal description, and then use the grid to find that location on the diagram and on the board.
  • Page 119 Locating Signals Figure 1: Tektronix Demo 2 board and locator grid Demo 2 Board Instruction Manual...
  • Page 120 Locating Signals Noisy Sine Board label. NOISY_SINE Connector grid location. Description. The Noisy Sine signal is an audio frequency (1.25 kHz) sine wave with power supply switching noise style spikes (156 kHz), and very high frequency noise (20 MHz pseudorandom) caused by a micro-controller/DSP system. C Bus Board label.
  • Page 121 Locating Signals The SPI bus signals are set as follows: SCLK is the rising edge latch SS is active low MOSI is active high This is the beginning of the mixed signal chain. See the descriptions of these signals: DAC Input, Parallel, and DAC Output. Packets occur approximately every 5 ms.
  • Page 122 Locating Signals DAC Input, Parallel Board label. DAC_IN0: DAC_IN7 Connector grid location. F1, F2 Description. These are the 8-bit parallel output signals of the port expander in the middle of the mixed signal chain. The sine wave data from the SPI bus is converted to 8 parallel bits to drive the DAC. DAC IN0 is the LSB. (See Figure 2.) See the previous SPI Bus description for packet details.
  • Page 123 Locating Signals Description. This is an I2S (Inter-IC sound) serial bus. The clock rate is 2.5 MHz. CAN Bus Board label. CAN_H, CAN_L Connector grid location. B3, C1, D1 Description. These are the CAN (Controller Area Network) bus signals between two CAN transceivers. The bit rate of the data packet is 500 kbps.
  • Page 124 The UART signal is the logic level input to the RS-232 UART from the μC. The transmit signal (TX) is the RS-232 voltage level serial bus signal. The decoded data packets display the ASCII string: Tektronix, Enabling Innovation. There are no matching receive or data flow control signals.
  • Page 125 Locating Signals Crosstalk 1, Crosstalk 2 Board label. XTALK1, XTALK2 Connector grid location. Description. These two signals have significant crosstalk between them. Use them to demonstrate MagniVu. Fast Edge Board label. FAST_EDGE Connector grid location. Description. This is a 156 kHz capacitively coupled square wave signal with a 3 ns rise and fall time. Fast FF Clock Board label.
  • Page 126 Locating Signals Fast FF Data Board label. FAST_FF_D Connector grid location. Description. This is the 1.25 MHz data input signal to a fast flip-flop that is asynchronous to the clock input. Fast FF Q Output Board label. FAST_FF_Q Connector grid location. Description.
  • Page 127 Locating Signals Slow FF Data Board label. SLOW_FF_D Connector grid location. Description. This is the 1.25 MHz data input signal to a slow flip-flop that is asynchronous to the clock input. Slow FF Q Output Board label. SLOW_FF_Q Connector grid location. Description.
  • Page 128 Locating Signals Counter Output Bits Board label. CNT_OUT0: CNT_OUT6 Connector grid location. B5, B6 Description. These are the 7-bits of the binary counter. The LSB is CNT OUT0 at 625 KHz, that is, half of the counter input clock. There are random setup and hold time changes of 500 ps on bits 2 (CNT OUT1) and 4 (CNT OUT3) of this bus. Use these signals to demonstrate setup time and hold time bus triggering using MagniVu.
  • Page 129 Locating Signals Description. This is the signal that produces Bursts of 100 ns wide logic pulses every 6.6 ms. The pattern is a pseudorandom bit sequence that repeats every 128 bursts and has a 6.32 μs duration. Frequent Anomaly Board label. FREQ_ANOM Connector grid location.
  • Page 130 Locating Signals Description. There are two less-frequent anomalies in this pulse train that can show up with DPO on DPO3000, MSO3000, DPO4000, and MSO4000 instruments. A half-height runt signal occurs approximately every 838.8 ms. Use a Runt trigger to isolate the signal. A 50 ns (narrow) pulse appears in approximately 838.8 ms.
  • Page 131 Locating Signals The AM Mod signal is centered around ground. Set the oscilloscope trigger level to either the top or bottom of the waveform to stabilize it on the display. Single Shot Pulse Board label. SS_PULSE Connector grid location. C5, I4 Description.
  • Page 132 Locating Signals Connector grid location. C4, C5 Description. These FlexRay signals consist of the following test points: FlexRay_BP, the positive half of a differential FlexRay bus FlexRay_BM, the negative half of a differential FlexRay bus FlexRay_Tx/Rx, the single-ended logic signal between the controller and the transceiver The data rate is at 10 Mb/s.

This manual is also suitable for:

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