Tektronix MDO3012, Руководство пользователя

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Analyze Waveform or Trace Data
Search Description
Rise/Fall Time Search for rising and/or falling edges that are >, <, =, or
≠ a user speci fi ed time.
Bus Parallel: Search for a binary or hex value.
I
2
C: Search for Start, Repeated Start, Stop, Missing Ack, Address, Data, or Address and
Data.
SPI: Search for SS Active, MOSI, MISO, or MOSI & MISO
RS-232, RS-422, RS-485, UART: Search for Tx Start Bit, Rx Start Bit, Tx End of Packet, Rx
End of Packet, Tx Data, Rx Data, Tx Parity Error, Rx Parity Error.
CAN, CAN FD: Search for Start of Frame, Type of Frame (Data, Remote, Error, Overload),
Identi
fi er (standard or extended), Data, Identi fi er and Data, End of Frame, Bit Suf fi ng Error,
Missing Ack, FD BRS Bit, FD ESI Bit, Form Error, or Any Error 1
LIN: Search for Synch, Identi fi er, Data, ID & Data, Wakeup Frame, Sleep Frame, Error
FlexRay: Search for Start of Frame, Type of Frame, Identi fi er, Cycle Count, Header Fields,
Data, ID & Data, End of Frame, Error
Audio: Search for Word Select or Data
USB: Search for Sync, Reset, Suspend, Resume, End of Packet, Token (Address) Packet,
Data Packet, Handshake Packet, Special Packet, or Error
MIL-STD-1553: Search for Sync, Command, Status, Data, Time (RT/IMG), Error
ARINC429: Search for Word Start, Label, Data, Label and Data, Word End, or Error
1
FD BRS Bit, FD ESI Bit, Form Error and Any Error are available only when CAN FD is selected as BUS.
Auto-magnify
As you adjust the horizontal scale control to faster time/division settings, the MDO3000 Series automatically increases the
sample rate to keep acquiring the same record length in the shorter period of time. Eventually though, the MDO3000 Series
hits its maximum sample rate. Once the instrument is at its fastest sample rate, further changes to faster timebase settings
cause the oscilloscope to operate in Auto-magnify mode, where the oscilloscope shows the faster desired time/division
setting and continues to acquire the desired record length. The result is that the oscilloscope cannot show all of the acquired
points within the desired time/division setting.
Instead, the oscilloscope shows you only a portion of the entire record in the time-domain graticule. This feature provides you
with a way to magnify a portion of the record without having to use the smaller zoom screen display. This feature gives you
the maximum bene
fi t of the sample rate / record length combination in your oscilloscope. With Auto-magnify, you have
access to the full record length at the maximum sample rate.
NOTE. Auto-magnify only comes on when the zoom feature is turned off.
154 MDO3000 Series Oscilloscopes User Manual