57
Subject to change without notice
S e r i a l b u s a n a l y s i s
pattern includes at least one X (don’t care), it is possible to
trigger on a value equal or not equal to the specified value. If
the pattern includes only 0 or 1, it is possible to trigger on an
area greater than or less than the specified value. The PAT-
TERN INPUT may be binary or hexadecimal. If you choose the
binary input, the soft menu key
BIT
and the universal knob
allow you to select which individual bits within the data are to
be edited. Select the option
STATE
to assign a logic state to
each bit (High = H = 1, Low = L = 0 or X = don’t care). The state
X defines any state. If you choose the hexadecimal input, the
soft menu key
VALUE
and the universal knob allow you to set
the value for the respective byte. If the input is hexadecimal,
only the entire byte can be set to X. Use the soft menu key
BYTE
to toggle between bytes.
The soft menu
IDENTIFIER AND DATA
and the soft menu key
IDENTIFIER SETUP
include the same settings as the soft
menu IDENTIFIER. The soft menu
DATA SETUP
allows you
to specify the data bit pattern or HEX values for up to 8 bytes.
Available comparisons for address and data values are EQUAL
and NOT EQUAL.
Press the MENU OFF button twice or three times to close all
menus, and the oscilloscope will trigger on the set data.
Fig. 13.25: LIN data trigger menu
