Trigger Setup
If you have made a
Trigger On
selection of
Error
, push
Error Type
on the lower menu and enter the parameters of
interest on the side menu.
FlexRay Bus Trigger
You can trigger on
Start of Frame
,
Type of Frame
,
Identi
fi
er
,
Cycle Count
,
Header Fields
,
Data
,
Id & Data
,
End
of Frame
or
Error
.
Audio Bus Trigger
If you are using an
I2C
, Left Justi
fi
ed (
LJ
), or Right Justi
fi
ed (
RJ
) audio bus, you can trigger on
Word Select
or
Data
.
If you are using an
TDM
audio bus, you can trigger on
Frame Sync
or
Data
.
USB Bus Trigger
You can trigger on
Sync
,
Reset
,
Suspend
,
Resume
,
End of Packet
,
Token (Address) Packet
,
Data Packet
,
Handshake
Packet
,
Special Packet
, or
Error
.
MIL-STD-1553 Bus Trigger
You can trigger on
Sync
,
Command
,
Status
,
Data
,
Time (RT/IMG)
, or
Error
.
If you are setting up a MIL-STD-1553 trigger and have made a
Trigger On
selection of
Command
, push
RT Address
on the
lower menu to enter speci
fi
c values of
RT Address
to trigger on. Push
Command Word Details
on the lower menu to enter
the
T/R bit
value,
Subaddress/Mode
value,
Word Count/Mode Code
value, and
Parity
value.
If you are setting up a MIL-STD-1553 trigger and have made a
Trigger On
selection of
Status
, push
RT-Address
on the
lower menu to enter speci
fi
c values of
RT Address
to trigger on. Push
Status Word Bits
on the lower menu to enter values
for
Message Error (bit 9)
,
Instr. (bit 10)
,
Service Req. (bit 11)
,
BCR (bit 15)
,
Busy (bit 16)
,
Subsystem Flag (bit
17)
,
DBCA (bit 18)
,
Terminal Flag (bit 19)
and
Parity
.
If you are setting up a MIL-STD-1553 trigger and have made a
Trigger On
selection of
Data
, push
Data
on the lower
menu to enter speci
fi
c
Data
values, and the
Parity
value.
If you are setting up a MIL-STD-1553 trigger and have made a
Trigger On
selection of
Time (RT/IMG)
, push
Trigger When
on the lower menu to set the trigger condition. Push
Times
on the lower menu to set the
Maximum
and
Minimum
times.
If you are setting up a MIL-STD-1553 trigger and have made a
Trigger On
selection of
Error
, push l
Error Type
on the lower
menu to select the type of error to trigger on.
I
2
C, SPI, USB, CAN, CAN FD, LIN, and FlexRay Bus Trigger Data Matching
Rolling window byte matching for I
2
C, SPI, USB, CAN, CAN FD, and FlexRay.
To use a rolling window to
trigger on data, you de
fi
ne the number of bytes to match. Then the oscilloscope uses a rolling window to
fi
nd any match
within a packet, with the window rolling one byte at a time.
For example, if the number of bytes is one, the oscilloscope will attempt to match the
fi
rst byte, second byte, third, and so
on within the packet.
If the number of bytes is two, the oscilloscope will try to match any two consecutive bytes, such as one and two, two and
three, three and four, and so on. If the oscilloscope
fi
nds a match, it will trigger.
98
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Страница 10: ...Table of Contents iv MDO3000 Series Oscilloscopes User Manual...
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