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Keysight InfiniiVision 2000 X-Series Oscilloscopes User's Guide
25
UART/RS232 Triggering and Serial Decode
•
Rx 1:Data
— For use when the device under test data words are 9 bits in
length including the alert bit (the 9th bit). Triggers only when the 9th (alert)
bit is 1. The specified data byte applies to the least significant 8 bits
(excludes the 9th (alert) bit).
•
Rx 0:Data
— For use when the device under test data words are 9 bits in
length including the alert bit (the 9th bit). Triggers only when the 9th (alert)
bit is 0. The specified data byte applies to the least significant 8 bits
(excludes the 9th (alert) bit).
•
Rx X:Data
— For use when the device under test data words are 9 bits in
length including the alert bit (the 9th bit). Triggers on a data byte that you
specify regardless of the value of the 9th (alert) bit. The specified data byte
applies to the least significant 8 bits (excludes the 9th (alert) bit).
•
Similar choices are available for Tx.
•
Rx or Tx Parity Error
— Triggers on a parity error based on the parity you have
set in the Bus Configuration Menu.
6
If you choose a trigger condition that includes "
Data
" in its description (for
example:
Rx Data
), then press the
Data is
softkey, and choose an equality
qualifier. You can choose equal to, not equal to, less than, or greater than a
specific data value.
7
Use the
Data
softkey to choose the data value for your trigger comparison. This
works in conjunction with the
Data is
softkey.
8
Optional: The
Burst
softkey lets you trigger on the Nth frame (1-4096) after an
idle time you select. All trigger conditions must be met for the trigger to occur.
9
If
Burst
is selected, an idle time (1 µs to 10 s) can be specified so that the
oscilloscope will look for a trigger condition only after the idle time has past.
Press the
Idle
softkey and rotate the Entry knob to set an idle time.
NOTE
If the setup does not produce a stable trigger, the UART/RS232 signals may be slow enough
that the oscilloscope is AutoTriggering. Press the
[Mode/Coupling]
key, then press the
Mode
softkey to set the trigger mode from
Auto
to
Normal
.
NOTE
To display UART/RS232 serial decode, see
Содержание DSO-X 2002A
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Страница 62: ...62 Keysight InfiniiVision 2000 X Series Oscilloscopes User s Guide 2 Horizontal Controls...
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Страница 84: ...84 Keysight InfiniiVision 2000 X Series Oscilloscopes User s Guide 4 Math Waveforms...
Страница 106: ...106 Keysight InfiniiVision 2000 X Series Oscilloscopes User s Guide 6 Digital Channels...
Страница 112: ...112 Keysight InfiniiVision 2000 X Series Oscilloscopes User s Guide 7 Serial Decode...
Страница 118: ...118 Keysight InfiniiVision 2000 X Series Oscilloscopes User s Guide 8 Display Settings...
Страница 146: ...146 Keysight InfiniiVision 2000 X Series Oscilloscopes User s Guide 10 Triggers...
Страница 154: ...154 Keysight InfiniiVision 2000 X Series Oscilloscopes User s Guide 11 Trigger Mode Coupling...
Страница 180: ...180 Keysight InfiniiVision 2000 X Series Oscilloscopes User s Guide 13 Cursors...
Страница 216: ...216 Keysight InfiniiVision 2000 X Series Oscilloscopes User s Guide 16 Digital Voltmeter...
Страница 228: ...228 Keysight InfiniiVision 2000 X Series Oscilloscopes User s Guide 17 Waveform Generator...
Страница 240: ...240 Keysight InfiniiVision 2000 X Series Oscilloscopes User s Guide 18 Save Recall Setups Screens Data...
Страница 246: ...246 Keysight InfiniiVision 2000 X Series Oscilloscopes User s Guide 19 Print Screens...
Страница 266: ...266 Keysight InfiniiVision 2000 X Series Oscilloscopes User s Guide 20 Utility Settings...
Страница 344: ...344 Keysight InfiniiVision 2000 X Series Oscilloscopes User s Guide 25 UART RS232 Triggering and Serial Decode...
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