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Serial Bus Decoding & Triggering, Search & Navigation, and Segmented Acquisition Labs 4

3000 X-Series Oscilloscopes Advanced Training Guide 91

Segmented Memory optimizes oscilloscope acquisition memory by only

capturing important segments of a waveform based on the trigger

condition and timebase setting. In this example, we have selectively

captured just bursts of data that include a parity error over a time- span

exceeding 20 seconds as shown in Figure 65.

Note that although not shown and demonstrated, we can also view the

segmented decoded RS232/UART serial data in the “lister” format, and we

can also perform Search & Navigation on the segments. Let’s now view

this decoded RS232/UART in a different numeric format to uncover a

important Agilent marketing message.

47 Press the [Serial] front panel key; then press the Settings softkey

48 Press the Base softkey; then select ASCII.

Figure 65 Using the scope’s Segmented Memory acquisition to selectively capture 50

occurrences of Parity Errors.

1 2 ... 86 87 88 89 90 91 92 93 94 95 96 ... 127 128

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Agilent Technologies 3000 X-Series Wartungshandbuch Seite 91