Protocol analysis
R&S
®
RTP
591User Manual 1337.9952.02 ─ 12
Identifier OR setup: Monitor, Frame ID
Sets the trigger to a combination of up to four identifiers. Enter the patterns in the
"Frame ID" fields. In binary and hex format, characters 1, 0, and X (do not care) are
allowed. For each identifier pattern to be triggered on, enable "Monitor".
Remote command:
TRIGger<m>:LIN:IDOR<n>:ENABle on page 1663
TRIGger<m>:LIN:IDOR<n>[:VALue] on page 1663
Data setup: Data length, Transfer, Condition, Data min, Data max
The data setup consists of the transfer direction, the number of bytes, the condition,
and one or two data patterns.
"Transfer"
Sets the byte order (endianness) of the data transfer. With "Big
endian", the data is analyzed and evaluated in the order of reception.
With "Little endian", the instrument reads the complete data, reverses
the byte order of the data, and compares it with the specified data
word.
According to the standard, LIN data is transmitted in little endian
transfer order. The "Little endian" setting allows you to enter the
required data word directly into "Data min", and the instrument trig-
gers correctly.
"Data length"
Sets the length of the bit pattern to be found, in bytes.
For Big Endian transfer direction, you can trigger on a number of
bytes less than the data length of the frame, that means, on the first
bytes that are transmitted. For Little Endian transfer direction, the
exact number of data bytes in the frame must be set.
Example: The data word to be sent is 12 34 56, and it is sent little
endian by the LIN node. With Data length ≥ 2 and Transfer = Big
endian, you trigger on the data of the first two bytes, that is 56 34.
With Data length = 3 and Transfer = Little endian, you trigger on the
required data word 12 34 56.
"Condition"
Sets the operator to define a specific data pattern ("Equal" or "Not
equal") or an data range.
"Data min"
Defines the data pattern. The pattern length is adjusted to the data
length setting (and vice versa), maximum is 8 bytes.
Enter the pattern MSB first and with big endian byte order, and set
the correct "Transfer" direction. The data is compared byte by byte.
In binary format, use the following characters: 1; 0; or X (do not care).
The use of X is restricted to the operators "Equal" and "Not equal".
"Data max"
The second data pattern is required to specify a range with conditions
"In range" and "Out of range".
Remote command:
TRIGger<m>:LIN:BORDer on page 1662
TRIGger<m>:LIN:DLECondition on page 1662
TRIGger<m>:LIN:DLENgth on page 1662
TRIGger<m>:LIN:DCONdition on page 1661
TRIGger<m>:LIN:DMIN on page 1661
TRIGger<m>:LIN:DMAX on page 1661
LIN (option R&S
RTP-K3)
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