SIG
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SDS1000X User Manual
85
SPI Triggering and Serial Decode
Please take the order of ―
Setup for SPI Signals
‖, ―
SPI Triggering
‖ and ―
SPI Decode
‖ to
trigger and decode the signals.
Setup for SPI Signals
Serial Peripheral Interface (SPI) signals setup consists of connecting the oscilloscope to a
clock, MOSI data, MISO data, and framing signal, then setting the threshold voltage level
for each input channel, and finally specifying any other signal parameters.
To set up the oscilloscope to capture SPI signals, use the
Signal
softkey which appears in
the DECODE function menu:
1. Press the
Decode
button on the front panel to enter the DECODE function menu.
2. Press the
Serial
softkey and select the desired slot (Serial 1 or Serial 2).
3. Press
Decode
softkey and select
SPI
with the
Universal Knob
, and then press the
knob to confirm. Serial 1 and Serial 2 could not be set to SPI at the same time. And
the default setup of Serial 2 is SPI.
4. Press the
Signal
softkey to enter the SPI SIGNAL menu.
Figure 38 SPI SINGAL Menu
5. Press the
CLK
softkey
to enter SPI CLK menu.
Figure 39 SPI Clock Menu
In the SPI Clock Menu:
a. Press the
CLK
softkey; then, turn the
Universal Knob
to select the channel
connected to the SPI serial clock line.
b. Press the
Threshold
softkey; then, turn the
Universal Knob
to select the clock
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.
c. Press the
Edge Select
softkey to select rising edge or falling edge for the
selected clock source. This determines which clock edge the oscilloscope will use
to latch the serial data.
6. Press the
UP
softkey to return to the SPI SINGAL menu.
7. Press the
MISO
softkey to enter the MISO menu.
Figure 40 MOSI Menu
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Summary of Contents for SDS1102X
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Page 95: ...SIGLENT SDS1000X User Manual 75 Figure 32 Runt Trigger www biall com pl...
Page 109: ...SIGLENT SDS1000X User Manual 89 Figure 44 SPI Trigger www biall com pl...
