Protocol analysis
R&S
®
RTO6
648
User Manual 1801.6687.02 ─ 05
Error conditions setup
Executes a trigger event if one or more of the following errors occur:
●
"Form Error"
Detects a form error in serial messages (short and enhanced).
An error occurs when at least one of the transmission sequences that form a serial
message has an error.
●
"Calibration Pulse Error"
Detects a calibration pulse error in transmission sequences.
An error occurs when:
–
the duration of the "Calibration/Sync" pulse (in ticks) is less than 56*(1-clock
tolerance) or more than 56*(1+clock tolerance)
–
the "Calibration/Sync" pulse duration of frame (–1) varies by more than
1.5625% from the "Calibration/Sync" pulse duration of frame (n)
●
"Pulse Period Error"
Detects an error in the "Calibration/Sync" pulse in transmission sequences.
An error occurs when a nibble has any of the following:
–
Number of ticks at low is fewer than 4 ticks.
–
Nibble value < 0 (fewer than 12 ticks) or > 15 (more than 27 ticks).
●
"CRC Error"
Detects a checksum error in both, the transmission sequences and serial mes-
sages.
The CRC length is 4 bits for transmission sequences and short serial messages,
and 6 bit of enhanced serial messages.
●
"Irregular Frame Length Error"
Detects frame length errors in transmission sequences when pause pulse mode
constant frame length is set, see
A frame length error occurs, when the total length of the transmission sequence
(including pause pulse) does not match the frame length setting, see
SENT (option R&S
RTO6-K520)
