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• Start Bit: indicates when to output data.

• Data Bit: indicates the number of data bits actually contained in each frame of

data.

• Check Bit: used to check whether the data are properly transmitted.

• Stop Bit: indicates when to stop outputting data.

In the

Decode menu, click or tap the drop-down button of Bus Type to select RS232,

then configure the parameters for RS232 decoding.

Figure 14.6 RS232 Decoding Menu

Bus Status

Click or tap the Bus Status on/off switch to enable or disable the bus decoding.

Quickly apply trigger settings to decoding

Copy trig indicates applying the trigger settings to the specified decoding setting.

Click or tap

Copy Trig to apply the trigger settings to the specified decoding setting.

Protocol Decoding

HDO1000 User Guide

177

Table of Contents3
Safety Requirement15
General Safety Summary15
Safety Notices and Symbols17
Measurement Category17
Ventilation Requirement18
Working Environment18
Care and Cleaning20
Environmental Considerations20
Product Features22
Document Overview23
Quick Start25
General Inspection25
Appearance and Dimensions25
Figure 4.1 Front View25
To Prepare for Use26
Tilting the Oscilloscope for Easier Viewing26
Figure 4.2 Side View26
Figure 4.3 Flipping In/Out Tabs26
Connecting to Power27
Turn-On Checkout27
Figure 4.4 Connecting to Power27
Replacing the Fuse28
Figure 4.5 Replacing the Fuse28
Setting the System Language29
Connecting Probes29
Function Inspection29
Figure 4.6 Connecting the Passive Probe29
Figure 4.7 Using the Compensation Signal30
Figure 4.8 Square Waveform Signal30
Probe Compensation31
Product Overview31
Figure 4.9 Probe Compensation31
Front Panel Overview32
Figure 4.10 Front Panel32
Rear Panel Overview38
Figure 4.11 Rear Panel38
User Interface Overview40
Figure 4.12 User Interface40
Touch Screen Gestures42
Tap42
Pinch&Stretch43
Drag43
Figure 4.13 Tap Gesture43
Figure 4.14 Pinch&Stretch Gesture43
Parameter Setting Method44
Figure 4.15 Drag Gesture44
Figure 4.16 English Input Interface45
Figure 4.17 Chinese Input Interface46
Figure 4.18 String Keypad48
Figure 4.19 Numeric Keypad49
Using the Security Lock50
Accessing the Built-In Help System50
Figure 4.20 to Use the Security Lock50
Viewing the Option Information and Installation51
Vertical System53
To Enable or Disable the Analog Channel53
Figure 5.1 Vertical Menu53
To Adjust the Vertical Scale55
To Adjust the Vertical Offset56
To Specify Channel Coupling57
To Specify Bandwidth Limit57
To Specify Input Impedance58
To Invert a Waveform58
To Set Probe59
Figure 5.2 Waveform Invert On/Off59
Figure 5.3 Probe Setting Menu60
Table 5.1 Probe Ratio60
To Specify the Amplitude Unit62
To Adjust Bias62
To Specify the Skew62
To Turn the Channel Label Display On/Off63
Figure 5.4 Zero Offset63
Horizontal System64
To Adjust the Horizontal Time Base64
Figure 6.1 Horizontal Menu64
To Adjust the Horizontal Position65
Zoom Mode (Delayed Sweep)66
Figure 6.2 Zoom Mode67
Acquisition System69
Acquisition Mode69
Figure 7.1 Horizontal Menu69
Sampling Mode71
Figure 7.2 Display Modes71
Sample Rate72
Memory Depth73
Figure 7.3 Memory Depth74
Horizontal Expansion Reference75
XY Mode75
Figure 7.4 XY Menu76
Figure 7.5 Measurement Schematic Diagram of Phase Deviation77
Triggering the Oscilloscope78
Trigger Source78
Trigger Level79
Trigger Mode80
Figure 8.1 Schematic Diagram of the Acquisition Memory80
Trigger Coupling81
Trigger Holdoff82
Noise Rejection82
Figure 8.2 Trigger Holdoff82
Trigger Type83
Edge Trigger83
Figure 8.3 Edge Trigger Setting Menu83
Pulse Width Trigger84
Figure 8.4 Positive/Negative Pulse Width85
Figure 8.5 Pulse Width Trigger Setting Menu85
Slope Trigger87
Figure 8.6 Positive Slope Time/Negative Slope Time87
Figure 8.7 Slope Trigger Setting Menu88
Video Trigger90
Figure 8.8 Video Trigger Setting Menu90
Table 8.1 Video Standard91
Pattern Trigger92
Figure 8.9 Pattern Trigger93
Figure 8.10 Pattern Trigger Setting Menu93
Duration Trigger95
Figure 8.11 Duration Trigger95
Figure 8.12 Duration Trigger Setting Menu96
Timeout Trigger98
Figure 8.13 Timeout Trigger98
Figure 8.14 Timeout Trigger Menu98
Runt Trigger100
Figure 8.15 Runt Trigger100
Figure 8.16 Runt Trigger Setting Menu100
Window Trigger102
Figure 8.17 Window Trigger Setting Menu102
Delay Trigger104
Figure 8.18 Delay Trigger104
Figure 8.19 Delay Trigger Setting Menu104
Setup/Hold Trigger107
Figure 8.20 Setup/Hold Trigger107
Figure 8.21 Setup/Hold Trigger Setting Menu107
Nth Edge Trigger109
Figure 8.22 Nth Edge Trigger110
Figure 8.23 Nth Edge Trigger Setting Menu110
RS232 Trigger111
Figure 8.24 Schematic Diagram of RS232 Protocol112
Figure 8.25 RS232 Trigger Setting Menu112
I2C Trigger114
Figure 8.26 Schematic Diagram of I2C Protocol114
Figure 8.27 I2C Trigger Setting Menu115
Figure 8.28 bin Format Setting116
Figure 8.29 Hex Format Setting117
SPI Trigger118
Figure 8.30 Sequential Chart of SPI Bus118
Figure 8.31 SPI Trigger Setting Menu118
CAN Trigger120
Figure 8.32 Data Frame Format of the CAN Bus121
Figure 8.33 CAN Trigger Setting Menu121
Figure 8.34 Sample Position122
LIN Trigger124
Figure 8.35 Data Frame Format of the LIN Bus124
Figure 8.36 LIN Trigger Setting Menu124
Figure 8.37 Sample Position125
Trigger Output Connector127
Math Operation128
Figure 9.1 Math Menu128
Arithmetic Operation129
Figure 9.2 Waveform Display Window of the Operation Results129
Figure 9.3 Arithmetic Operation Menu130
Figure 9.4 Operation Result Display Window130
Function Operation132
Figure 9.5 Function Operation Menu133
Figure 9.6 Operation Result Display Window133
FFT Operation135
Figure 9.7 FFT Operation Menu136
Figure 9.8 FFT Operation Window137
Table 9.1 Window Function138
Figure 9.9 Peak Search139
Logic Operation140
Figure 9.10 Logic Operation Menu141
Figure 9.11 Operation Result Display Window142
Table 9.2 Logic Operation142
Digital Filter144
Figure 9.12 Digital Filter Menu144
Figure 9.13 Operation Result Display Window145
Measurements148
Measurement Parameter148
Time Parameters149
Figure 10.1 Time Parameters149
Count Values150
Delay and Phase Parameters152
Figure 10.2 Delay and Phase Parameters152
Voltage Parameters153
Figure 10.3 Voltage Parameters153
Other Parameters155
Select the Measurement Item155
Figure 10.4 Vertical Measurement Items156
Figure 10.5 Horizontal Measurement Items157
Figure 10.6 Other Measurement Items157
Measurement Settings158
Figure 10.7 Measurement Settings158
Remove the Measurement Results161
Auto Measurement161
Cursor Measurements162
Figure 10.8 Cursor162
Manual Mode164
Figure 10.9 Manual Mode Setting Menu164
Track Mode166
Figure 10.10 Manual Cursor Measurement Example166
Figure 10.11 Track Mode Setting Menu167
XY Mode169
Figure 10.12 Track Measurement (before Horizontal Expansion)169
Figure 10.13 Track Measurement (after Horizontal Expansion)169
Figure 10.14 XY Mode170
Digital Voltmeter (DVM) and Frequency Counter172
Digital Voltmeter (DVM)172
Measurement Settings172
Figure 11.1 DVM Setting Menu173
Remove the Measurement174
Frequency Counter174
Measurement Settings175
Figure 11.2 Frequency Counter Setting Menu175
Reset Statistics176
Remove the Measurement176
Reference Waveform177
To Enable Ref Function177
To Set the Reference Waveform177
Figure 12.1 Reference Waveform Menu177
To Set the Ref Waveform Display178
Export and Import Operation179
Pass/Fail Test181
To Enable or Disable the Pass/Fail Test Function181
Figure 13.1 Pass/Fail Test Menu181
To Select the Source182
To Create a Mask182
To Set the Output Form of the Test Results182
To Start or Stop the Pass/Fail Test Operation183
Display the Statistics of the Test Results184
Figure 13.2 Pass/Fail Test Interface184
Protocol Decoding186
Parallel Decoding186
Figure 14.1 Schematic Diagram of Parallel Decoding186
Clock Setting (CLK)187
Figure 14.2 Parallel Decoding Menu187
Bus Setting188
Table 14.1 Bus Setting188
Display-Related Settings189
Event Table189
Figure 14.3 Parallel Decoding Event Table189
RS232 Decoding190
Figure 14.4 Schematic Diagram of RS232 Serial Bus190
Figure 14.5 Schematic Diagram of Negative Logic190
Figure 14.6 RS232 Decoding Menu191
Source Setting192
To Set Data Package192
Display-Related Settings193
Event Table194
I2C Decoding194
Figure 14.7 RS232 Decoding Event Table194
Source Setting195
Figure 14.8 I2C Serial Bus195
Figure 14.9 I2C Decoding Menu195
Display-Related Settings196
Event Table196
Figure 14.10 I2C Decoding Event Table197
SPI Decoding198
Figure 14.11 SPI Serial Bus198
Figure 14.12 SPI Decoding Menu198
To Set the Source199
To Set Mode and Data199
Display-Related Settings200
Event Table201
Figure 14.13 SPI Decoding Event Table201
LIN Decoding202
Signal Configuration202
Figure 14.14 LIN Decoding Menu202
Display-Related Settings203
Event Table203
Figure 14.15 LIN Decoding Event Table204
CAN Decoding (Optional)205
Signal Configuration205
Figure 14.16 CAN Decoding Menu205
Display-Related Settings206
Figure 14.17 Sample Position206
Event Table207
Figure 14.18 CAN Decoding Event Table207
Multi-Pane Windowing209
Figure 15.1 "Add Window" Menu209
Waveform Recording and Playing211
Common Settings211
Figure 16.1 "Record" Menu211
Record Options212
Play Options213
Figure 16.2 Minimized "Play" Menu214
Search and Navigation216
Search216
Figure 17.1 Search Menu216
Navigation218
Figure 17.2 Marktable Display218
Figure 17.3 Navigation Menu219
Figure 17.4 Simplified Navigation Menu219
Display Control221
Display Type221
Figure 18.1 Display Setting Menu221
Persistence Time222
Waveform Intensity222
To Set the Screen Grid222
Figure 18.2 Vector Display222
Display Settings223
Show Scale223
Color Grade223
Waveform Freeze223
Store and Load225
To Enter the Storage Menu225
To Save a File225
Save Image225
Figure 19.1 Image Saving Setting Menu226
Save Wave227
Figure 19.2 Waveform Saving Setting Menu228
Save Setup229
Figure 19.3 Setup Saving Setting Menu229
Binary Data Format (.Bin)230
Table 19.1 bin File Format230
Table 19.2 File Header231
Table 19.3 Waveform Header231
Load a File233
Table 19.4 Waveform Data Header233
System Upgrade234
Figure 19.4 Load Setting Menu234
Disk Management235
Figure 19.5 Upgrade Menu235
Figure 19.6 Disk Management Interface236
Factory Settings237
Table 19.5 Factory Settings243
System Utility Function Setting248
I/O Setting248
Basic Settings250
About this Oscilloscope252
Other Settings253
Auto Config253
Selfcal254
Figure 20.1 Self-Calibration Menu254
Option List255
Quick Action Settings255
Figure 20.2 Quick Menu255
Self-Check257
Figure 20.3 Key Test Interface257
Figure 20.4 Touch Screen Test Interface258
Remote Control260
Remote Control Via USB261
Remote Control Via LAN261
Remote Control Via GPIB262
Figure 21.1 Search for the Available Device263
Figure 21.2 Confirm the Available Device263
Troubleshooting264
Appendix266
Appendix A: Options and Accessories266
Appendix B: Warranty266

Brand	Rigol
Model	HDO1000 Series
Category	Test Equipment
Language	English

Rigol HDO1000 Series User Manual

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