User Manual SMO1000A-S
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In the MISO menu:
a.
Press the
MISO
softkey; then, turn the
Universal Knob
to select the channel that
is connected to a second SPI serial data line. (If the channel you selected is off,
switch it on.)
b.
Press the
Threshold
softkey; then, turn the
Universal Knob
to select the MISO
signal threshold voltage level. The threshold voltage level is used in decoding, and
it will become the trigger level when the trigger type is set to the selected serial
decode slot
8.
Press the
UP
softkey to return to the SPI SINGAL menu.
9.
Press the
MOSI
softkey to enter the MOSI menu.
Figure 41 MOSI Menu
In the MOSI menu:
a.
Press the
MOSI
softkey; then, turn the
Universal Knob
to select the channel that
is connected to a SPI serial data line. (If the channel you selected is off, switch it
on.)
b.
Press the
Threshold
softkey; then, turn the
Universal Knob
to select the MOSI
signal threshold voltage level. The threshold voltage level is used in decoding, and
it will become the trigger level when the trigger type is set to the selected serial
decode slot.
10.
Press the
UP
softkey to return to the SPI SINGAL menu.
11.
Press the
CS
softkey to open the SPI CS menu.
Figure 42 SPI CS Menu
In the SPI CS menu:
a.
Press the
Cs Type
softkey to select a framing signal that the oscilloscope will use
for determining which clock edge is the first clock edge in the serial stream. You
can set the oscilloscope to trigger during a high chip select (
CS
), a low chip select
(
~CS
), or after a
Timeout
period during which the clock signal has been idle.
If the framing signal is set to
CS
(or
~CS
), the first clock edge as defined,
rising or falling, seen after the
CS
(or
~CS
) signal transitions from low to high
(or high to low) is the first clock in the serial stream.
Press the
CS
or
~CS
softkey; then, turn the
Universal Knob
to select the
channel that is connected to the SPI frame line. The label (~CS or CS) for the
source channel is automatically set. The data pattern and the clock transition
must occur during the time when the framing signal is valid. The framing
signal must be valid for the entire data pattern.
If the framing signal is set to
Timeout
, the oscilloscope generates its own
internal framing signal after it sees inactivity on the serial clock line.
CLK Timeout
— Select
Clock Timeout
in the
Cs Type
softkey, then select
the
Limit
softkey and turn the
Universal Knob
to set the minimum time that
Summary of Contents for SMO1000A-S
Page 1: ...Digital Oscilloscope SMO1000A S User Manual ...
Page 50: ...User Manual SMO1000A S 50 176 Figure 12 x Interpolation Figure 13 Sinx Interpolation ...
Page 76: ...User Manual SMO1000A S 76 176 Figure 28 Relative Window Trigger ...
Page 78: ...User Manual SMO1000A S 78 176 Figure 29 Interval Trigger ...
Page 82: ...User Manual SMO1000A S 82 176 Figure 32 Runt Trigger ...
Page 96: ...User Manual SMO1000A S 96 176 Figure 44 SPI Trigger ...
