User manual

Protocol Analysis
R&S
®
RTO
291User Manual 1316.0827.02 ─ 06
The trigger point depends on the ID type.
"Frame type"
Data frames and remote frames contain an identifier. Select the frame
type to be triggered on, or select "Any" if the frame type is not relevant.
"ID type"
See: "ID type" on page 290.
"Condition"
Defines the operator to set a specific identifier ("Equal" or "Not equal")
or an identifier range.
"Identifier min"
Defines the bit pattern of the message identifier. In binary format, use
the following characters: 1; 0; or X (any bit). The use of X is restricted
to the conditions "Equal" and "Not equal".
The length of the bit patterns is restricted to the selected "ID type". The
bit pattern editor helps you to enter the pattern in any format, see chap-
ter 10.1.4, "Bit Pattern Editor", on page 255.
"Identifier max"
The second identifier pattern is required to specify a range with condi-
tions "In range" and "Out of range".
SCPI command:
TRIGger<m>:CAN:ICONdition on page 689
TRIGger<m>:CAN:IMIN on page 690
TRIGger<m>:CAN:IMAX on page 690
Data setup: DLC, 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.
To trigger only on data, set the "ID type" of the identifier setup to "Any".
"Transfer"
Sets the byte order (endianess) of the data transfer. With big endian,
the most significant byte is transmitted first. The reverse order, least
significant byte first, is called "Little endian".
"DLC"
Sets the Data Length Code, the number of data bytes to be found. For
"Big Endian" transfer direction, you can trigger on a number of bytes
less than the DLC of the frame, that means, on the beginning of the
data pattern. For "Little Endian" transfer direction, the exact number of
data bytes in the frame must be set.
Example: DLC ≥ 2. The frame has at least two bytes, and you trigger
on the data of the first two bytes.
"Condition"
Sets the operator to set a specific data pattern ("Equal" or "Not equal")
or a data range.
"Data min"
Defines the data pattern. The pattern length is adjusted to the DLC set-
ting (and vice versa), maximum is 8 bytes. Enter the pattern MSB first
and with big endian byte order.
In binary format, use the following characters: 1; 0; or X (any bit). The
bit pattern editor helps you to enter the pattern in any format, see chap-
ter 10.1.4, "Bit Pattern Editor", on page 255.
CAN (Option R&S RTO-K3)