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335

Keysight InfiniiVision 2000 X-Series Oscilloscopes

User's Guide

25 UART/RS232 Triggering

and Serial Decode

Setup for UART/RS232 Signals / 335

UART/RS232 Triggering / 337

UART/RS232 Serial Decode / 339

UART/RS232 triggering and serial decode requires Option COMP or the

DSOX3COMP upgrade.

Setup for UART/RS232 Signals

To set up the oscilloscope to capture UART/RS232 signals:

1 Press [Label] to turn on labels.

2 Press [Serial].

3 Press the Mode softkey; then, select UART/RS232 trigger type.

4 Press the Signals softkey to open the UART/RS232 Signals Menu.

Default Chapter2
- Safety Notices2
- Infiniivision 2000 X-Series Oscilloscopes-At a Glance4
- In this Guide6
- Table of Contents9
1 Getting Started23
- Inspect the Package Contents23
- Learn the Front Panel Controls and23
- Install the Optional LAN/VGA or GPIB Module26
- Tilt the Oscilloscope for Easy Viewing26
- Power-On the Oscilloscope27
- Connect Probes to the Oscilloscope28
  - Maximum Input Voltage at Analog Inputs28
  - Do Not Float the Oscilloscope Chassis29
- Input a Waveform29
- Recall the Default Oscilloscope Setup29
- Use Auto Scale30
- Compensate Passive Probes32
- Learn the Front Panel Controls and Connectors33
  - Front Panel Overlays for Different Languages41
- Learn the Rear Panel Connectors43
- Learn the Oscilloscope Display45
- Access the Built-In Quick Help47
2 Horizontal Controls49
- To Adjust the Horizontal (Time/DIV) Scale50
- To Adjust the Horizontal Delay (Position)51
- Panning and Zooming Single or Stopped Acquisitions52
- To Change the Horizontal Time Mode (Normal, XY, or Roll)52
  - XY Time Mode53
- To Display the Zoomed Time Base56
- To Change the Horizontal Scale Knob's Coarse/Fine Adjustment Setting57
- To Position the Time Reference (Left, Center, Right)58
- Searching for Events58
  - To Set up Searches59
- Navigating the Time Base59
3 Vertical Controls64
- To Turn Waveforms on or off (Channel or Math)64
- To Adjust the Vertical Scale65
- To Adjust the Vertical Position65
- To Specify Channel Coupling65
- To Specify Bandwidth Limiting66
- To Change the Vertical Scale Knob's Coarse/Fine Adjustment Setting66
- To Invert a Waveform67
- Setting Analog Channel Probe Options67
4 Math Waveforms71
- To Display Math Waveforms71
- To Perform a Transform Function on an Arithmetic Operation72
  - See also "To Perform a Transform Function on an Arithmetic Operation72
- To Adjust the Math Waveform Scale and Offset73
- Units for Math Waveforms73
- Math Operators74
  - Add or Subtract74
  - Multiply or Divide75
- Math Transforms76
5 Reference Waveforms85
- To Save a Waveform to a Reference Waveform Location85
- To Display a Reference Waveform86
- To Scale and Position Reference Waveforms87
- To Adjust Reference Waveform Skew87
- To Display Reference Waveform Information88
- To Save/Recall Reference Waveform Files To/From a USB Storage Device88
- To Connect the Digital Probes to the Device under Test89
6 Digital Channels90
- Probe Cable for Digital Channels90
- Acquiring Waveforms Using the Digital Channels93
- To Display Digital Channels Using Autoscale93
- Interpreting the Digital Waveform Display94
- To Change the Displayed Size of the Digital Channels95
- To Switch a Single Channel on or off96
- To Switch All Digital Channels on or off96
- To Switch Groups of Channels on or off96
- To Change the Logic Threshold for Digital Channels96
- To Reposition a Digital Channel97
- To Display Digital Channels as a Bus98
- Digital Channel Signal Fidelity: Probe Impedance and Grounding101
7 Serial Decode107
- Serial Decode Options107
- Lister108
- Searching Lister Data110
- Searching for UART/RS232 Data in the111
8 Display Settings113
- To Adjust Waveform Intensity113
- To Set or Clear Persistence115
- To Clear the Display116
- To Select the Grid Type116
- To Adjust the Grid Intensity117
- To Freeze the Display117
- 9 Labels119
10 Triggers125
- Adjusting the Trigger Level126
- Edge Trigger127
- Forcing a Trigger127
- Pattern Trigger130
  - Hex Bus Pattern Trigger132
- Pulse Width Trigger132
- Video Trigger135
- Serial Trigger144
11 Trigger Mode/Coupling147
- To Select the Auto or Normal Trigger Mode148
- To Select the Trigger Coupling149
- To Enable or Disable Trigger HF Reject151
- To Enable or Disable Trigger Noise Rejection151
- External Trigger Input152
  - Maximum Voltage at Oscilloscope External Trigger Input153
- To Set the Trigger Holdoff152
12 Acquisition Control155
- Running, Stopping, and Making Single Acquisitions (Run Control)155
- Overview of Sampling156
- Selecting the Acquisition Mode161
- Acquiring to Segmented Memory167
- To Make Cursor Measurements172
- Cursor Examples175
- To Make Automatic Measurements182
- Measurements Summary184
  - Snapshot All185
- Voltage Measurements186
- Time Measurements193
- Measurement Thresholds198
- Measurement Window with Zoom Display200
15 Mask Testing201
- To Create a Mask from a "Golden" Waveform (Automask)201
- Mask Test Setup Options203
- Mask Statistics206
- To Manually Modify a Mask File207
- Building a Mask File210
  - How Is Mask Testing Done212
16 Digital Voltmeter213
- To Select Generated Waveform Types and Settings217
- To Output the Waveform Generator Sync Pulse220
- To Specify the Expected Output Load220
17 Waveform Generator220
- To Use Waveform Generator Logic Presets221
- To Add Modulation to the Waveform Generator Output222
- To Add Noise to the Waveform Generator Output222
- To Restore Waveform Generator Defaults227
18 Save/Recall (Setups, Screens, Data)229
- Saving Setups, Screen Images, or Data229
- Recalling Setups, Masks, or Reference Waveforms237
- Recalling Default Setups238
- Performing a Secure Erase239
19 Print (Screens)241
- To Print the Oscilloscope's Display241
- To Set up Network Printer Connections242
- To Specify the Palette Option244
- To Specify the Print Options244
- I/O Interface Settings247
- Setting up the Oscilloscope's LAN Connection248
  - To Establish a LAN Connection249
  - Stand-Alone (Point-To-Point) Connection to a PC250
20 Utility Settings248
- File Explorer251
- Setting Oscilloscope Preferences253
- Setting the Oscilloscope's Clock256
- Setting the Rear Panel TRIG out Source256
- Performing Service Tasks257
- Configuring the [Quick Action] Key262
- Adding an Annotation263
21 Web Interface267
- Accessing the Web Interface268
- Browser Web Control269
- Save/Recall275
  - Saving Files Via the Web Interface275
  - Recalling Files Via the Web Interface276
- Get Image277
- Identification Function278
- Instrument Utilities278
- Setting a Password280
22 Reference283
- Measurement Category283
- Specifications and Characteristics283
- Environmental Conditions285
- Probes and Accessories285
- Loading Licenses and Displaying License Information286
- Binary Data (.Bin) Format288
- Software and Firmware Updates288
- CSV and ASCII XY Files295
  - CSV and ASCII XY File Structure296
  - Minimum and Maximum Values in CSV Files296
- Acknowledgements297
- Product Markings and Regulatory Information299
23 CAN/LIN Triggering and Serial Decode301
- Setup for CAN Signals301
- CAN Triggering303
- CAN Serial Decode305
- Setup for LIN Signals309
- LIN Triggering311
- LIN Serial Decode312
24 I2C/SPI Triggering and Serial Decode317
- Setup for I2C Signals317
- I2C Triggering318
- I2C Serial Decode322
- Setup for SPI Signals325
- SPI Triggering329
- SPI Serial Decode331
- Setup for UART/RS232 Signals335
25 UART/RS232 Triggering and Serial Decode335
- UART/RS232 Triggering337
- UART/RS232 Serial Decode339
  - Interpreting UART/RS232 Lister340
  - Uart/Rs232341

Brand	Keysight Technologies
Model	DSO-X 2022A
Category	Test Equipment
Language	English

Keysight Technologies DSO-X 2022A User Manual

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