4-38
IM DLM3054-01EN
CAN FD Bus Trigger [ENHANCED, option]
The instrument triggers based on the trigger conditions of a particular frame or type of data in a CAN FD bus
signal (ISO 11898-1: 2015 or non-ISO).
CAN FD (ISO 11898-1: 2015)
SOF
1
11
1 1 1 1 1 1 4
3
1
Arbitration Field
Control Field
Data Field
ACK
CAN FD Data Frame (Standard)
Sequence
CRC
Recessive
Dominant
IDE
ACK slot
17|21
1|2 1|2
1 7
EOF
DATA
DLC
ESI
BRS
r0
CRC Delimiter
ACK Delimiter
FDF
r1
8N
(0
≤
N
≤
64)
CRC Field
ID 10-0
Stuff Count
Parity
Stuf
f Bit
Count
CAN FD (non-ISO)
SOF
1
11
1 1 1 1 1 1 4
Arbitration Field
Control Field
Data Field
ACK
CAN FD Data Frame (Standard)
Sequence
CRC
Recessive
Dominant
IDE
ACK slot
17|21
1|2 1|2
1 7
EOF
DATA
DLC
ESI
BRS
r0
CRC Delimiter
ACK Delimiter
FDF
r1
8N
(0
≤
N
≤
64)
CRC Field
ID 10-0
Trigger Mode (Mode)
Select the CAN FD bus trigger mode from one of the settings below.
SOF: Triggers on the start of a frame
Error: Triggers on errors
: Triggers on the AND of the ID bit pattern and Data pattern
: Triggers on the OR of multiple ID bit patterns
: Triggers on the FDF bit state
: Triggers when the ESI bit is recessive (error passive)
SOF(Start of Frame)
The instrument triggers on the start of CAN FD bus signal frames.
Error
The instrument triggers on an error (when the error flag is active) or when it detects various errors.
• CAN FD Standard (FD Standard)
Select the compliant standard for the CAN FD bus signal to be applied.
ISO:ISO 11898-1: Captured as a 2015-compliant CAN FD bus signal.
non-ISO:ISO 11898-1: Captured as a CAN FD bus signal compliant to a standard before 2015.
• Error Type (Error Type Or)
Select the types of errors to detect from the following. The instrument triggers if any of the selected errors is
detected.
Error Frame When an active error flag (indicated by six consecutive dominant bits) is
detected
Stuff
When stuff bits are not inserted properly
Fixed Stuff
When fixed CRC stuff bits are not inserted properly
CRC
When a CRC error is detected
If the aforementioned CAN FD standard is set to ISO, select the CRC error
factor from one of the settings below. You can also select both.
Stuff Count, CRC Sequence
4 Triggering