3-7
IM 701450-51E
SPI Bus Signal Analysis Function
3
• When Using Pattern B as a Trigger Condition
12.
Use jog shuttle & SELECT to set the pattern MOSI (CH2) or MISO (CH3) to be
assigned to Pattern B.
13.
Use jog shuttle & SELECT to set the data length of the determination pattern to
be specified from 1 to 8 bytes (Data Byte box). The number of bytes displayed
in the B Pattern box is set to the number of bytes that matches the selected
result.
14.
Use jog shuttle & SELECT to set the determination pattern for each byte in
hexadecimal or binary (B Pattern box). When determination is not to be
performed, select X.
15.
Use jog shuttle & SELECT to set the condition of Pattern B to True or False
(Condition box).
16.
Use jog shuttle & SELECT to select whether to compare the Pattern B to the
pattern immediately after the byte count (First Byte) or continue to compare until
SS is negated (Anywhere) (After Byte Count box).
Select the data length
of Pattern B in the
range of 1 to 8 bytes.
Set the Pattern B condition to
True or False.
Select this when using
pattern B as a trigger
condition.
Set the data assigned to
Pattern B to MOSI (CH2) or
MISO (CH3).
Set the determination pattern
per byte using hexadecimal
or binary values.
Select whether to compare Pattern B to the pattern immediately
after the byte count (First Byte) or continue to compare until SS
is negated (Anywhere).
17.
Press ESC. The SPI Setup dialog box closes.
Setting the Combination Trigger
18.
Press the Combination soft key. The Combination menu appears.
19.
Press SPI Only, SPI on Pattern, or SPI -> Pattern soft key.
•
Select SPI Only to activate a trigger only on the trigger conditions of the SPI Bus
signal. Select SPI on Pattern to activate a trigger when the trigger conditions of the
SPI Bus signal are met while the trigger conditions of CH5 to CH8 are met. Select SPI
-> Pattern to activate a trigger when the trigger conditions of CH5 to CH8 are met after
the trigger conditions of the SPI Bus signal are met.
•
Only SPI Only is selectable on the DL7440.
3.4 Setting SPI Bus Signal Acquisition Conditions